mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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71a0e29e99
When 'rp_filter' is configured in strict mode (1) the tests fail because packets received from the macvlan netdevs would not be forwarded through them on the reverse path. Fix this by disabling the 'rp_filter', meaning no source validation is performed. Fixes:1538812e08("selftests: forwarding: Add a test for VXLAN asymmetric routing") Fixes:438a4f5665("selftests: forwarding: Add a test for VXLAN symmetric routing") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reported-by: Hangbin Liu <liuhangbin@gmail.com> Tested-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/20201015084525.135121-1-idosch@idosch.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
577 lines
18 KiB
Bash
Executable file
577 lines
18 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# +---------------------------+ +------------------------------+
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# | vrf-h1 | | vrf-h2 |
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# | + $h1 | | + $h2 |
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# | | 10.1.1.101/24 | | | 10.1.2.101/24 |
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# | | default via 10.1.1.1 | | | default via 10.1.2.1 |
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# +----|----------------------+ +----|-------------------------+
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# | |
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# +----|--------------------------------------------|-------------------------+
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# | SW | | |
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# | +--|--------------------------------------------|-----------------------+ |
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# | | + $swp1 br1 + $swp2 | |
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# | | vid 10 pvid untagged vid 20 pvid untagged | |
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# | | | |
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# | | + vx10 + vx20 | |
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# | | local 10.0.0.1 local 10.0.0.1 | |
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# | | remote 10.0.0.2 remote 10.0.0.2 | |
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# | | id 1000 id 2000 | |
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# | | dstport 4789 dstport 4789 | |
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# | | vid 10 pvid untagged vid 20 pvid untagged | |
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# | | | |
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# | +-----------------------------------+-----------------------------------+ |
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# | | |
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# | +-----------------------------------|-----------------------------------+ |
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# | | | | |
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# | | +--------------------------------+--------------------------------+ | |
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# | | | | | |
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# | | + vlan10 vlan20 + | |
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# | | | 10.1.1.11/24 10.1.2.11/24 | | |
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# | | | | | |
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# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
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# | | 10.1.1.1/24 10.1.2.1/24 | |
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# | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | |
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# | | vrf-green | |
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# | +-----------------------------------------------------------------------+ |
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# | |
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# | + $rp1 +lo |
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# | | 192.0.2.1/24 10.0.0.1/32 |
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# +----|----------------------------------------------------------------------+
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# |
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# +----|--------------------------------------------------------+
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# | | vrf-spine |
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# | + $rp2 |
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# | 192.0.2.2/24 |
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# | | (maybe) HW
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# =============================================================================
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# | | (likely) SW
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# | |
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# | + v1 (veth) |
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# | | 192.0.3.2/24 |
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# +----|--------------------------------------------------------+
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# |
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# +----|----------------------------------------------------------------------+
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# | + v2 (veth) +lo NS1 (netns) |
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# | 192.0.3.1/24 10.0.0.2/32 |
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# | |
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# | +-----------------------------------------------------------------------+ |
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# | | vrf-green | |
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# | | + vlan10-v (macvlan) vlan20-v (macvlan) + | |
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# | | | 10.1.1.1/24 10.1.2.1/24 | | |
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# | | | 00:00:5e:00:01:01 00:00:5e:00:01:01 | | |
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# | | | | | |
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# | | + vlan10 vlan20 + | |
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# | | | 10.1.1.12/24 10.1.2.12/24 | | |
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# | | | | | |
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# | | +--------------------------------+--------------------------------+ | |
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# | | | | |
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# | +-----------------------------------|-----------------------------------+ |
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# | | |
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# | +-----------------------------------+-----------------------------------+ |
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# | | | |
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# | | + vx10 + vx20 | |
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# | | local 10.0.0.2 local 10.0.0.2 | |
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# | | remote 10.0.0.1 remote 10.0.0.1 | |
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# | | id 1000 id 2000 | |
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# | | dstport 4789 dstport 4789 | |
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# | | vid 10 pvid untagged vid 20 pvid untagged | |
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# | | | |
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# | | + w1 (veth) + w3 (veth) | |
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# | | | vid 10 pvid untagged br1 | vid 20 pvid untagged | |
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# | +--|------------------------------------------|-------------------------+ |
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# | | | |
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# | | | |
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# | +--|----------------------+ +--|-------------------------+ |
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# | | | vrf-h1 | | | vrf-h2 | |
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# | | + w2 (veth) | | + w4 (veth) | |
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# | | 10.1.1.102/24 | | 10.1.2.102/24 | |
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# | | default via 10.1.1.1 | | default via 10.1.2.1 | |
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# | +-------------------------+ +----------------------------+ |
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# +---------------------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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arp_decap
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arp_suppression
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"
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NUM_NETIFS=6
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source lib.sh
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require_command $ARPING
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hx_create()
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{
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local vrf_name=$1; shift
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local if_name=$1; shift
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local ip_addr=$1; shift
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local gw_ip=$1; shift
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vrf_create $vrf_name
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ip link set dev $if_name master $vrf_name
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ip link set dev $vrf_name up
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ip link set dev $if_name up
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ip address add $ip_addr/24 dev $if_name
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ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
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dev $if_name
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ip route add default vrf $vrf_name nexthop via $gw_ip
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}
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export -f hx_create
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hx_destroy()
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{
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local vrf_name=$1; shift
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local if_name=$1; shift
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local ip_addr=$1; shift
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local gw_ip=$1; shift
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ip route del default vrf $vrf_name nexthop via $gw_ip
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ip neigh del $gw_ip dev $if_name
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ip address del $ip_addr/24 dev $if_name
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ip link set dev $if_name down
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vrf_destroy $vrf_name
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}
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h1_create()
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{
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hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
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}
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h1_destroy()
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{
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hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
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}
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h2_create()
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{
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hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
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}
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h2_destroy()
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{
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hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
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}
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switch_create()
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{
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ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
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mcast_snooping 0
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# Make sure the bridge uses the MAC address of the local port and not
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# that of the VxLAN's device.
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ip link set dev br1 address $(mac_get $swp1)
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ip link set dev br1 up
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ip link set dev $rp1 up
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ip address add dev $rp1 192.0.2.1/24
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ip route add 10.0.0.2/32 nexthop via 192.0.2.2
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ip link add name vx10 type vxlan id 1000 \
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local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
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nolearning noudpcsum tos inherit ttl 100
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ip link set dev vx10 up
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ip link set dev vx10 master br1
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bridge vlan add vid 10 dev vx10 pvid untagged
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ip link add name vx20 type vxlan id 2000 \
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local 10.0.0.1 remote 10.0.0.2 dstport 4789 \
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nolearning noudpcsum tos inherit ttl 100
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ip link set dev vx20 up
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ip link set dev vx20 master br1
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bridge vlan add vid 20 dev vx20 pvid untagged
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ip link set dev $swp1 master br1
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ip link set dev $swp1 up
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bridge vlan add vid 10 dev $swp1 pvid untagged
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ip link set dev $swp2 master br1
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ip link set dev $swp2 up
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bridge vlan add vid 20 dev $swp2 pvid untagged
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ip address add 10.0.0.1/32 dev lo
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# Create SVIs
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vrf_create "vrf-green"
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ip link set dev vrf-green up
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ip link add link br1 name vlan10 up master vrf-green type vlan id 10
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ip address add 10.1.1.11/24 dev vlan10
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ip link add link vlan10 name vlan10-v up master vrf-green \
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address 00:00:5e:00:01:01 type macvlan mode private
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ip address add 10.1.1.1/24 dev vlan10-v
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ip link add link br1 name vlan20 up master vrf-green type vlan id 20
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ip address add 10.1.2.11/24 dev vlan20
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ip link add link vlan20 name vlan20-v up master vrf-green \
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address 00:00:5e:00:01:01 type macvlan mode private
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ip address add 10.1.2.1/24 dev vlan20-v
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bridge vlan add vid 10 dev br1 self
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bridge vlan add vid 20 dev br1 self
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bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
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bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
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sysctl_set net.ipv4.conf.all.rp_filter 0
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sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
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sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
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}
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switch_destroy()
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{
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sysctl_restore net.ipv4.conf.all.rp_filter
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bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
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bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
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bridge vlan del vid 20 dev br1 self
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bridge vlan del vid 10 dev br1 self
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ip link del dev vlan20
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ip link del dev vlan10
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vrf_destroy "vrf-green"
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ip address del 10.0.0.1/32 dev lo
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bridge vlan del vid 20 dev $swp2
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ip link set dev $swp2 down
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ip link set dev $swp2 nomaster
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bridge vlan del vid 10 dev $swp1
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ip link set dev $swp1 down
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ip link set dev $swp1 nomaster
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bridge vlan del vid 20 dev vx20
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ip link set dev vx20 nomaster
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ip link set dev vx20 down
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ip link del dev vx20
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bridge vlan del vid 10 dev vx10
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ip link set dev vx10 nomaster
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ip link set dev vx10 down
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ip link del dev vx10
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ip route del 10.0.0.2/32 nexthop via 192.0.2.2
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ip address del dev $rp1 192.0.2.1/24
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ip link set dev $rp1 down
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ip link set dev br1 down
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ip link del dev br1
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}
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spine_create()
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{
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vrf_create "vrf-spine"
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ip link set dev $rp2 master vrf-spine
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ip link set dev v1 master vrf-spine
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ip link set dev vrf-spine up
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ip link set dev $rp2 up
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ip link set dev v1 up
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ip address add 192.0.2.2/24 dev $rp2
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ip address add 192.0.3.2/24 dev v1
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ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
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ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
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}
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spine_destroy()
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{
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ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
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ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
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ip address del 192.0.3.2/24 dev v1
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ip address del 192.0.2.2/24 dev $rp2
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ip link set dev v1 down
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ip link set dev $rp2 down
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vrf_destroy "vrf-spine"
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}
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ns_h1_create()
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{
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hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
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}
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export -f ns_h1_create
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ns_h2_create()
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{
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hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
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}
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export -f ns_h2_create
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ns_switch_create()
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{
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ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
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mcast_snooping 0
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ip link set dev br1 up
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ip link set dev v2 up
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ip address add dev v2 192.0.3.1/24
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ip route add 10.0.0.1/32 nexthop via 192.0.3.2
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ip link add name vx10 type vxlan id 1000 \
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local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
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nolearning noudpcsum tos inherit ttl 100
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ip link set dev vx10 up
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ip link set dev vx10 master br1
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bridge vlan add vid 10 dev vx10 pvid untagged
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ip link add name vx20 type vxlan id 2000 \
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local 10.0.0.2 remote 10.0.0.1 dstport 4789 \
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nolearning noudpcsum tos inherit ttl 100
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ip link set dev vx20 up
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ip link set dev vx20 master br1
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bridge vlan add vid 20 dev vx20 pvid untagged
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ip link set dev w1 master br1
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ip link set dev w1 up
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bridge vlan add vid 10 dev w1 pvid untagged
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ip link set dev w3 master br1
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ip link set dev w3 up
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bridge vlan add vid 20 dev w3 pvid untagged
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ip address add 10.0.0.2/32 dev lo
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# Create SVIs
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vrf_create "vrf-green"
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ip link set dev vrf-green up
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ip link add link br1 name vlan10 up master vrf-green type vlan id 10
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ip address add 10.1.1.12/24 dev vlan10
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ip link add link vlan10 name vlan10-v up master vrf-green \
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address 00:00:5e:00:01:01 type macvlan mode private
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ip address add 10.1.1.1/24 dev vlan10-v
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ip link add link br1 name vlan20 up master vrf-green type vlan id 20
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ip address add 10.1.2.12/24 dev vlan20
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ip link add link vlan20 name vlan20-v up master vrf-green \
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address 00:00:5e:00:01:01 type macvlan mode private
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ip address add 10.1.2.1/24 dev vlan20-v
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bridge vlan add vid 10 dev br1 self
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bridge vlan add vid 20 dev br1 self
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bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
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bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
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sysctl_set net.ipv4.conf.all.rp_filter 0
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sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
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sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
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}
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export -f ns_switch_create
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ns_init()
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{
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ip link add name w1 type veth peer name w2
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ip link add name w3 type veth peer name w4
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ip link set dev lo up
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ns_h1_create
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ns_h2_create
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ns_switch_create
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}
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export -f ns_init
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ns1_create()
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{
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ip netns add ns1
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ip link set dev v2 netns ns1
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in_ns ns1 ns_init
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}
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ns1_destroy()
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{
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ip netns exec ns1 ip link set dev v2 netns 1
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ip netns del ns1
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}
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macs_populate()
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{
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local mac1=$1; shift
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local mac2=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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local dst=$1; shift
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bridge fdb add $mac1 dev vx10 self master extern_learn static \
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dst $dst vlan 10
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bridge fdb add $mac2 dev vx20 self master extern_learn static \
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dst $dst vlan 20
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ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
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extern_learn
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ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
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extern_learn
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}
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export -f macs_populate
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macs_initialize()
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{
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local h1_ns_mac=$(in_ns ns1 mac_get w2)
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local h2_ns_mac=$(in_ns ns1 mac_get w4)
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local h1_mac=$(mac_get $h1)
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local h2_mac=$(mac_get $h2)
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macs_populate $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
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in_ns ns1 macs_populate $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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rp1=${NETIFS[p5]}
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rp2=${NETIFS[p6]}
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vrf_prepare
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forwarding_enable
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h1_create
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h2_create
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switch_create
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ip link add name v1 type veth peer name v2
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spine_create
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ns1_create
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macs_initialize
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}
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cleanup()
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{
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pre_cleanup
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ns1_destroy
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spine_destroy
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ip link del dev v1
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switch_destroy
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h2_destroy
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h1_destroy
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forwarding_restore
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vrf_cleanup
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}
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ping_ipv4()
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{
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ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
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ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
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ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
|
|
ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
|
|
ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
|
|
}
|
|
|
|
arp_decap()
|
|
{
|
|
# Repeat the ping tests, but without populating the neighbours. This
|
|
# makes sure we correctly decapsulate ARP packets
|
|
log_info "deleting neighbours from vlan interfaces"
|
|
|
|
ip neigh del 10.1.1.102 dev vlan10
|
|
ip neigh del 10.1.2.102 dev vlan20
|
|
|
|
ping_ipv4
|
|
|
|
ip neigh replace 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
|
|
dev vlan10 extern_learn
|
|
ip neigh replace 10.1.2.102 lladdr $(in_ns ns1 mac_get w4) nud noarp \
|
|
dev vlan20 extern_learn
|
|
}
|
|
|
|
arp_suppression_compare()
|
|
{
|
|
local expect=$1; shift
|
|
local actual=$(in_ns ns1 tc_rule_stats_get vx10 1 ingress)
|
|
|
|
(( expect == actual ))
|
|
check_err $? "expected $expect arps got $actual"
|
|
}
|
|
|
|
arp_suppression()
|
|
{
|
|
ip link set dev vx10 type bridge_slave neigh_suppress on
|
|
|
|
in_ns ns1 tc qdisc add dev vx10 clsact
|
|
in_ns ns1 tc filter add dev vx10 ingress proto arp pref 1 handle 101 \
|
|
flower dst_mac ff:ff:ff:ff:ff:ff arp_tip 10.1.1.102 arp_op \
|
|
request action pass
|
|
|
|
# The neighbour is configured on the SVI and ARP suppression is on, so
|
|
# the ARP request should be suppressed
|
|
RET=0
|
|
|
|
$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
|
|
check_err $? "arping failed"
|
|
|
|
arp_suppression_compare 0
|
|
|
|
log_test "neigh_suppress: on / neigh exists: yes"
|
|
|
|
# Delete the neighbour from the the SVI. A single ARP request should be
|
|
# received by the remote VTEP
|
|
RET=0
|
|
|
|
ip neigh del 10.1.1.102 dev vlan10
|
|
|
|
$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
|
|
check_err $? "arping failed"
|
|
|
|
arp_suppression_compare 1
|
|
|
|
log_test "neigh_suppress: on / neigh exists: no"
|
|
|
|
# Turn off ARP suppression and make sure ARP is not suppressed,
|
|
# regardless of neighbour existence on the SVI
|
|
RET=0
|
|
|
|
ip neigh del 10.1.1.102 dev vlan10 &> /dev/null
|
|
ip link set dev vx10 type bridge_slave neigh_suppress off
|
|
|
|
$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
|
|
check_err $? "arping failed"
|
|
|
|
arp_suppression_compare 2
|
|
|
|
log_test "neigh_suppress: off / neigh exists: no"
|
|
|
|
RET=0
|
|
|
|
ip neigh add 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
|
|
dev vlan10 extern_learn
|
|
|
|
$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
|
|
check_err $? "arping failed"
|
|
|
|
arp_suppression_compare 3
|
|
|
|
log_test "neigh_suppress: off / neigh exists: yes"
|
|
|
|
in_ns ns1 tc qdisc del dev vx10 clsact
|
|
}
|
|
|
|
trap cleanup EXIT
|
|
|
|
setup_prepare
|
|
setup_wait
|
|
|
|
tests_run
|
|
|
|
exit $EXIT_STATUS
|