mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-04-30 23:48:05 +02:00
b358fa3dc5
Add a script to test IPv6 prefix delegation with NM, in different modes. (cherry picked from commit1e3bbdfbbb) (cherry picked from commitcea673a273)
151 lines
3.2 KiB
Bash
Executable file
151 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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# Usage: ./test-prefix-delegation {ll|slaac|dhcp-stateful|dhcp-stateless}
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MODE=${1:-dhcp-stateful}
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cleanup()
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{
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pkill -F dhcpd.pid
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pkill -F radvd.pid
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rm -f radvd.conf
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rm -f dhcpd.conf
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rm -f leases.conf
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nmcli connection delete v1+ v2+
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ip netns del ns1
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ip netns del ns2
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ip link del v1
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ip link del v2
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}
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require()
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{
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if ! command -v "$1" > /dev/null ; then
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echo " *** Error: command '$1' not found"
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exit 1
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fi
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}
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exit_hook()
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{
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cleanup > /dev/null 2>&1
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}
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require nmcli
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require ip
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require jq
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require radvd
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require dhcpd
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unalias ip 2> /dev/null
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cleanup
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trap exit_hook EXIT
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# ns1 is the 'upstream' namespace that provides IPv6 connectivity
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# through RA and DHCPv6. The DHCP server also acts as a delegating
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# router for /60 prefixes.
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# ns2 is the 'downstream' namespace where a client obtains IPv6
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# connectivity through RA from NM.
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# NM is in the default namespace and has a connection to ns1 with
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# ipv6.method=auto and to ns2 with ipv6.method=shared.
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ip netns add ns1
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ip netns add ns2
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ip link add v1 type veth peer name v1p
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ip link add v2 type veth peer name v2p
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ip link set v1p netns ns1
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ip link set v2p netns ns2
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ip link set v1 up
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ip link set v2 up
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ip -n ns1 link set v1p up
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ip -n ns1 addr add dev v1p fc01::1/64
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ip -n ns2 link set v2p up
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if [ "$MODE" = ll ]; then
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adv_managed=off
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adv_other=off
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elif [ "$MODE" = slaac ]; then
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adv_managed=off
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adv_other=off
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adv_prefix="prefix fc01::/64 {AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; };"
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elif [ "$MODE" = dhcp-stateless ]; then
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adv_managed=off
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adv_other=on
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adv_prefix="prefix fc01::/64 {AdvOnLink on; AdvAutonomous on; AdvRouterAddr off; };"
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elif [ "$MODE" = dhcp-stateful ]; then
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adv_managed=on
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adv_other=off
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dhcp_range="range6 fc01::1000 fc01::ffff;"
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else
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echo "Unknown mode '$MODE'"
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exit 1
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fi
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echo "Starting in $MODE mode..."
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cat > radvd.conf <<EOF
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interface v1p {
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AdvSendAdvert on;
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AdvManagedFlag ${adv_managed};
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AdvOtherConfigFlag ${adv_other};
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MinRtrAdvInterval 3;
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MaxRtrAdvInterval 60;
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${adv_prefix}
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};
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EOF
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cat > dhcpd.conf <<EOF
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subnet6 fc01::/64 {
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${dhcp_range}
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prefix6 fc01:bbbb:1:: fc01:bbbb:2:: / 60;
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option dhcp6.name-servers fc01::8888;
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}
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EOF
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echo > leases.conf
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ip netns exec ns1 radvd -n -C radvd.conf -p radvd.pid &
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ip netns exec ns1 dhcpd -6 -d -cf dhcpd.conf -lf leases.conf -pf dhcpd.pid &
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nmcli connection add type ethernet ifname v1 con-name v1+ ipv4.method disabled ipv6.method auto autoconnect no
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nmcli connection add type ethernet ifname v2 con-name v2+ ipv4.method disabled ipv6.method shared autoconnect no
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nmcli connection up v1+
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sleep 5
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nmcli connection up v2+
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sleep 5
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ip a show dev v1
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ip a show dev v2
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addr=$(ip -j addr show dev v1 | jq -r '.[0].addr_info[] | select(.scope=="link")'.local)
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prefix="fc01:bbbb:1::/32"
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ip netns exec ns1 ip route add $prefix via $addr dev v1p
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# kernel does IPv6 autoconf in ns2 ...
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sleep 10
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# check connectivity to ns1
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if ! ip -n ns2 a show dev v2p | grep 'fc01:bbbb:[a-f0-9\:]\+/64'; then
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ip -n ns2 a show dev v2p
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echo "ERROR: no address"
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exit 1
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fi
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if ! ip netns exec ns2 ping -c2 fc01::1; then
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echo "ERROR: ping failed"
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exit 1
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fi
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echo "OK"
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