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selftests: net: Test for the IOAM encapsulation with IPv6
This patch adds support for testing the encap (ip6ip6) mode of IOAM. Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Justin Iurman
David S. Miller
parent
8cb3bf8bff
commit
bf77b1400a
1 changed files with 159 additions and 50 deletions
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@ -6,7 +6,7 @@
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# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data
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# consistency directly inside packets on the receiver side. Tests are divided
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# into three categories: OUTPUT (evaluates the IOAM processing by the sender),
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# INPUT (evaluates the IOAM processing by the receiver) and GLOBAL (evaluates
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# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates
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# wider use cases that do not fall into the other two categories). Both OUTPUT
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# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL
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# tests use the entire three-node topology (alpha, beta, gamma). Each test is
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@ -200,7 +200,7 @@ check_kernel_compatibility()
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ip -netns ioam-tmp-node link set veth0 up
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ip -netns ioam-tmp-node link set veth1 up
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ip -netns ioam-tmp-node ioam namespace add 0 &>/dev/null
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ip -netns ioam-tmp-node ioam namespace add 0
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ns_ad=$?
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ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0"
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@ -214,11 +214,11 @@ check_kernel_compatibility()
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exit 1
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fi
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ip -netns ioam-tmp-node route add db02::/64 encap ioam6 trace prealloc \
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type 0x800000 ns 0 size 4 dev veth0 &>/dev/null
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ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \
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trace prealloc type 0x800000 ns 0 size 4 dev veth0
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tr_ad=$?
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ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6 trace"
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ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6"
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tr_sh=$?
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if [[ $tr_ad != 0 || $tr_sh != 0 ]]
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@ -232,6 +232,30 @@ check_kernel_compatibility()
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ip link del veth0 2>/dev/null || true
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ip netns del ioam-tmp-node || true
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lsmod | grep -q "ip6_tunnel"
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ip6tnl_loaded=$?
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if [ $ip6tnl_loaded = 0 ]
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then
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encap_tests=0
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else
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modprobe ip6_tunnel &>/dev/null
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lsmod | grep -q "ip6_tunnel"
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encap_tests=$?
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if [ $encap_tests != 0 ]
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then
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ip a | grep -q "ip6tnl0"
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encap_tests=$?
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if [ $encap_tests != 0 ]
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then
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echo "Note: ip6_tunnel not found neither as a module nor inside the" \
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"kernel, tests that require it (encap mode) will be omitted"
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fi
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fi
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fi
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}
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cleanup()
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@ -242,6 +266,11 @@ cleanup()
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ip netns del ioam-node-alpha || true
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ip netns del ioam-node-beta || true
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ip netns del ioam-node-gamma || true
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if [ $ip6tnl_loaded != 0 ]
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then
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modprobe -r ip6_tunnel 2>/dev/null || true
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fi
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}
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setup()
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@ -329,6 +358,12 @@ log_test_failed()
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printf "TEST: %-60s [FAIL]\n" "${desc}"
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}
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log_results()
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{
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echo "- Tests passed: ${npassed}"
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echo "- Tests failed: ${nfailed}"
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}
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run_test()
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{
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local name=$1
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@ -349,16 +384,26 @@ run_test()
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ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null
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if [ $? != 0 ]
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then
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nfailed=$((nfailed+1))
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log_test_failed "${desc}"
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kill -2 $spid &>/dev/null
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else
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wait $spid
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[ $? = 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
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if [ $? = 0 ]
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then
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npassed=$((npassed+1))
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log_test_passed "${desc}"
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else
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nfailed=$((nfailed+1))
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log_test_failed "${desc}"
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fi
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fi
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}
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run()
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{
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echo
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printf "%0.s-" {1..74}
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echo
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echo "OUTPUT tests"
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printf "%0.s-" {1..74}
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@ -369,7 +414,8 @@ run()
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for t in $TESTS_OUTPUT
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do
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$t
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$t "inline"
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[ $encap_tests = 0 ] && $t "encap"
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done
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# clean OUTPUT settings
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@ -377,6 +423,8 @@ run()
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ip -netns ioam-node-alpha route change db01::/64 dev veth0
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echo
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printf "%0.s-" {1..74}
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echo
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echo "INPUT tests"
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printf "%0.s-" {1..74}
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@ -387,7 +435,8 @@ run()
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for t in $TESTS_INPUT
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do
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$t
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$t "inline"
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[ $encap_tests = 0 ] && $t "encap"
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done
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# clean INPUT settings
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@ -396,7 +445,8 @@ run()
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ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
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ip -netns ioam-node-alpha route change db01::/64 dev veth0
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echo
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printf "%0.s-" {1..74}
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echo
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echo "GLOBAL tests"
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printf "%0.s-" {1..74}
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@ -404,8 +454,12 @@ run()
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for t in $TESTS_GLOBAL
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do
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$t
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$t "inline"
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[ $encap_tests = 0 ] && $t "encap"
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done
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echo
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log_results
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}
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bit2type=(
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@ -431,11 +485,16 @@ out_undef_ns()
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##############################################################################
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local desc="Unknown IOAM namespace"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0x800000 ns 0 size 4 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0x800000 0
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0x800000 ns 0 size 4 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0x800000 0
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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out_no_room()
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@ -446,11 +505,16 @@ out_no_room()
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##############################################################################
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local desc="Missing trace room"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0xc00000 ns 123 size 4 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0xc00000 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0xc00000 ns 123 size 4 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0xc00000 123
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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out_bits()
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@ -465,15 +529,21 @@ out_bits()
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local tmp=${bit2size[22]}
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bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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for i in {0..22}
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do
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
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prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
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dev veth0
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run_test "out_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 ${bit2type[$i]} 123
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run_test "out_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \
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ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
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done
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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bit2size[22]=$tmp
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}
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@ -485,11 +555,16 @@ out_full_supp_trace()
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##############################################################################
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local desc="Full supported trace"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0xfff002 ns 123 size 100 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0xfff002 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0xfff002 ns 123 size 100 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0xfff002 123
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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@ -510,11 +585,16 @@ in_undef_ns()
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##############################################################################
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local desc="Unknown IOAM namespace"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0x800000 ns 0 size 4 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0x800000 0
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0x800000 ns 0 size 4 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0x800000 0
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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in_no_room()
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@ -525,11 +605,16 @@ in_no_room()
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##############################################################################
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local desc="Missing trace room"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0xc00000 ns 123 size 4 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0xc00000 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0xc00000 ns 123 size 4 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0xc00000 123
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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in_bits()
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@ -544,15 +629,21 @@ in_bits()
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local tmp=${bit2size[22]}
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bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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for i in {0..22}
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do
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
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prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
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dev veth0
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run_test "in_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 ${bit2type[$i]} 123
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run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \
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ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
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done
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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bit2size[22]=$tmp
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}
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@ -569,11 +660,16 @@ in_oflag()
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# back the IOAM namespace that was previously configured on the sender.
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ip -netns ioam-node-alpha ioam namespace add 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0xc00000 ns 123 size 4 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0xc00000 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0xc00000 ns 123 size 4 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0xc00000 123
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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# And we clean the exception for this test to get things back to normal for
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# other INPUT tests
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@ -588,11 +684,16 @@ in_full_supp_trace()
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##############################################################################
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local desc="Full supported trace"
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
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type 0xfff002 ns 123 size 80 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
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db01::1 veth0 0xfff002 123
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ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
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trace prealloc type 0xfff002 ns 123 size 80 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
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db01::2 db01::1 veth0 0xfff002 123
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[ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
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}
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@ -611,11 +712,16 @@ fwd_full_supp_trace()
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##############################################################################
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local desc="Forward - Full supported trace"
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ip -netns ioam-node-alpha route change db02::/64 encap ioam6 trace prealloc \
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type 0xfff002 ns 123 size 244 via db01::1 dev veth0
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[ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1"
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[ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 up
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run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-gamma db01::2 \
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db02::2 veth0 0xfff002 123
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ip -netns ioam-node-alpha route change db02::/64 encap ioam6 mode $mode \
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trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0
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run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-gamma \
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db01::2 db02::2 veth0 0xfff002 123
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[ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 down
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}
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@ -625,6 +731,9 @@ fwd_full_supp_trace()
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# #
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################################################################################
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npassed=0
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nfailed=0
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if [ "$(id -u)" -ne 0 ]
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then
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echo "SKIP: Need root privileges"
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