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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 13:53:33 +00:00
75a1a9fa2e
Make the tests correctly annotate skbs with tunnel metadata. This makes the gso tests succeed. Enable them. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
178 lines
3.8 KiB
Bash
Executable file
178 lines
3.8 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# In-place tunneling
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# must match the port that the bpf program filters on
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readonly port=8000
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readonly ns_prefix="ns-$$-"
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readonly ns1="${ns_prefix}1"
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readonly ns2="${ns_prefix}2"
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readonly ns1_v4=192.168.1.1
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readonly ns2_v4=192.168.1.2
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readonly ns1_v6=fd::1
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readonly ns2_v6=fd::2
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readonly infile="$(mktemp)"
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readonly outfile="$(mktemp)"
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setup() {
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ip netns add "${ns1}"
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ip netns add "${ns2}"
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ip link add dev veth1 mtu 1500 netns "${ns1}" type veth \
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peer name veth2 mtu 1500 netns "${ns2}"
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ip netns exec "${ns1}" ethtool -K veth1 tso off
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ip -netns "${ns1}" link set veth1 up
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ip -netns "${ns2}" link set veth2 up
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ip -netns "${ns1}" -4 addr add "${ns1_v4}/24" dev veth1
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ip -netns "${ns2}" -4 addr add "${ns2_v4}/24" dev veth2
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ip -netns "${ns1}" -6 addr add "${ns1_v6}/64" dev veth1 nodad
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ip -netns "${ns2}" -6 addr add "${ns2_v6}/64" dev veth2 nodad
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# clamp route to reserve room for tunnel headers
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ip -netns "${ns1}" -4 route flush table main
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ip -netns "${ns1}" -6 route flush table main
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ip -netns "${ns1}" -4 route add "${ns2_v4}" mtu 1476 dev veth1
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ip -netns "${ns1}" -6 route add "${ns2_v6}" mtu 1456 dev veth1
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sleep 1
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dd if=/dev/urandom of="${infile}" bs="${datalen}" count=1 status=none
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}
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cleanup() {
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ip netns del "${ns2}"
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ip netns del "${ns1}"
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if [[ -f "${outfile}" ]]; then
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rm "${outfile}"
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fi
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if [[ -f "${infile}" ]]; then
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rm "${infile}"
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fi
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}
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server_listen() {
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ip netns exec "${ns2}" nc "${netcat_opt}" -l -p "${port}" > "${outfile}" &
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server_pid=$!
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sleep 0.2
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}
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client_connect() {
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ip netns exec "${ns1}" timeout 2 nc "${netcat_opt}" -w 1 "${addr2}" "${port}" < "${infile}"
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echo $?
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}
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verify_data() {
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wait "${server_pid}"
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# sha1sum returns two fields [sha1] [filepath]
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# convert to bash array and access first elem
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insum=($(sha1sum ${infile}))
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outsum=($(sha1sum ${outfile}))
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if [[ "${insum[0]}" != "${outsum[0]}" ]]; then
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echo "data mismatch"
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exit 1
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fi
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}
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set -e
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# no arguments: automated test, run all
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if [[ "$#" -eq "0" ]]; then
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echo "ipip"
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$0 ipv4 ipip 100
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echo "ip6ip6"
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$0 ipv6 ip6tnl 100
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echo "ip gre"
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$0 ipv4 gre 100
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echo "ip6 gre"
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$0 ipv6 ip6gre 100
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echo "ip gre gso"
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$0 ipv4 gre 2000
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echo "ip6 gre gso"
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$0 ipv6 ip6gre 2000
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echo "OK. All tests passed"
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exit 0
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fi
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if [[ "$#" -ne "3" ]]; then
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echo "Usage: $0"
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echo " or: $0 <ipv4|ipv6> <tuntype> <data_len>"
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exit 1
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fi
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case "$1" in
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"ipv4")
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readonly addr1="${ns1_v4}"
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readonly addr2="${ns2_v4}"
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readonly netcat_opt=-4
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;;
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"ipv6")
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readonly addr1="${ns1_v6}"
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readonly addr2="${ns2_v6}"
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readonly netcat_opt=-6
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;;
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*)
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echo "unknown arg: $1"
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exit 1
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;;
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esac
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readonly tuntype=$2
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readonly datalen=$3
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echo "encap ${addr1} to ${addr2}, type ${tuntype}, len ${datalen}"
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trap cleanup EXIT
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setup
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# basic communication works
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echo "test basic connectivity"
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server_listen
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client_connect
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verify_data
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# clientside, insert bpf program to encap all TCP to port ${port}
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# client can no longer connect
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ip netns exec "${ns1}" tc qdisc add dev veth1 clsact
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ip netns exec "${ns1}" tc filter add dev veth1 egress \
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bpf direct-action object-file ./test_tc_tunnel.o \
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section "encap_${tuntype}"
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echo "test bpf encap without decap (expect failure)"
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server_listen
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! client_connect
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# serverside, insert decap module
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# server is still running
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# client can connect again
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ip netns exec "${ns2}" ip link add dev testtun0 type "${tuntype}" \
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remote "${addr1}" local "${addr2}"
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ip netns exec "${ns2}" ip link set dev testtun0 up
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echo "test bpf encap with tunnel device decap"
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client_connect
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verify_data
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# serverside, use BPF for decap
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ip netns exec "${ns2}" ip link del dev testtun0
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ip netns exec "${ns2}" tc qdisc add dev veth2 clsact
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ip netns exec "${ns2}" tc filter add dev veth2 ingress \
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bpf direct-action object-file ./test_tc_tunnel.o section decap
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server_listen
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echo "test bpf encap with bpf decap"
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client_connect
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verify_data
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echo OK
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