Commit bf77b140 authored by Justin Iurman's avatar Justin Iurman Committed by David S. Miller
Browse files

selftests: net: Test for the IOAM encapsulation with IPv6 



This patch adds support for testing the encap (ip6ip6) mode of IOAM.

Signed-off-by: default avatarJustin Iurman <justin.iurman@uliege.be>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8cb3bf8b

tools/testing/selftests/net/ioam6.sh

+159 −50
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data

# consistency directly inside packets on the receiver side. Tests are divided

# into three categories: OUTPUT (evaluates the IOAM processing by the sender),

# INPUT (evaluates the IOAM processing by the receiver) and GLOBAL (evaluates

# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates

# wider use cases that do not fall into the other two categories). Both OUTPUT

# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL

# tests use the entire three-node topology (alpha, beta, gamma). Each test is
@@ -200,7 +200,7 @@ check_kernel_compatibility() 
  ip -netns ioam-tmp-node link set veth0 up

  ip -netns ioam-tmp-node link set veth1 up



  ip -netns ioam-tmp-node ioam namespace add 0 &>/dev/null

  ip -netns ioam-tmp-node ioam namespace add 0

  ns_ad=$?



  ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0"
@@ -214,11 +214,11 @@ check_kernel_compatibility() 
    exit 1

  fi



  ip -netns ioam-tmp-node route add db02::/64 encap ioam6 trace prealloc \

         type 0x800000 ns 0 size 4 dev veth0 &>/dev/null

  ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \

         trace prealloc type 0x800000 ns 0 size 4 dev veth0

  tr_ad=$?



  ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6 trace"

  ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6"

  tr_sh=$?



  if [[ $tr_ad != 0 || $tr_sh != 0 ]]
@@ -232,6 +232,30 @@ check_kernel_compatibility() 


  ip link del veth0 2>/dev/null || true

  ip netns del ioam-tmp-node || true



  lsmod | grep -q "ip6_tunnel"

  ip6tnl_loaded=$?



  if [ $ip6tnl_loaded = 0 ]

  then

    encap_tests=0

  else

    modprobe ip6_tunnel &>/dev/null

    lsmod | grep -q "ip6_tunnel"

    encap_tests=$?



    if [ $encap_tests != 0 ]

    then

      ip a | grep -q "ip6tnl0"

      encap_tests=$?



      if [ $encap_tests != 0 ]

      then

        echo "Note: ip6_tunnel not found neither as a module nor inside the" \

             "kernel, tests that require it (encap mode) will be omitted"

      fi

    fi

  fi

}



cleanup()
@@ -242,6 +266,11 @@ cleanup() 
  ip netns del ioam-node-alpha || true

  ip netns del ioam-node-beta || true

  ip netns del ioam-node-gamma || true



  if [ $ip6tnl_loaded != 0 ]

  then

    modprobe -r ip6_tunnel 2>/dev/null || true

  fi

}



setup()
@@ -329,6 +358,12 @@ log_test_failed() 
  printf "TEST: %-60s  [FAIL]\n" "${desc}"

}



log_results()

{

  echo "- Tests passed: ${npassed}"

  echo "- Tests failed: ${nfailed}"

}



run_test()

{

  local name=$1
@@ -349,16 +384,26 @@ run_test() 
  ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null

  if [ $? != 0 ]

  then

    nfailed=$((nfailed+1))

    log_test_failed "${desc}"

    kill -2 $spid &>/dev/null

  else

    wait $spid

    [ $? = 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"

    if [ $? = 0 ]

    then

      npassed=$((npassed+1))

      log_test_passed "${desc}"

    else

      nfailed=$((nfailed+1))

      log_test_failed "${desc}"

    fi

  fi

}



run()

{

  echo

  printf "%0.s-" {1..74}

  echo

  echo "OUTPUT tests"

  printf "%0.s-" {1..74}
@@ -369,7 +414,8 @@ run() 


  for t in $TESTS_OUTPUT

  do

    $t

    $t "inline"

    [ $encap_tests = 0 ] && $t "encap"

  done



  # clean OUTPUT settings
@@ -377,6 +423,8 @@ run() 
  ip -netns ioam-node-alpha route change db01::/64 dev veth0





  echo

  printf "%0.s-" {1..74}

  echo

  echo "INPUT tests"

  printf "%0.s-" {1..74}
@@ -387,7 +435,8 @@ run() 


  for t in $TESTS_INPUT

  do

    $t

    $t "inline"

    [ $encap_tests = 0 ] && $t "encap"

  done



  # clean INPUT settings
@@ -396,7 +445,8 @@ run() 
  ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}

  ip -netns ioam-node-alpha route change db01::/64 dev veth0





  echo

  printf "%0.s-" {1..74}

  echo

  echo "GLOBAL tests"

  printf "%0.s-" {1..74}
@@ -404,8 +454,12 @@ run() 


  for t in $TESTS_GLOBAL

  do

    $t

    $t "inline"

    [ $encap_tests = 0 ] && $t "encap"

  done



  echo

  log_results

}



bit2type=(
@@ -431,11 +485,16 @@ out_undef_ns() 
  ##############################################################################

  local desc="Unknown IOAM namespace"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0x800000 ns 0 size 4 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0x800000 0

  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0x800000 ns 0 size 4 dev veth0



  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0x800000 0



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}



out_no_room()
@@ -446,11 +505,16 @@ out_no_room() 
  ##############################################################################

  local desc="Missing trace room"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0xc00000 ns 123 size 4 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0xc00000 ns 123 size 4 dev veth0



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0xc00000 123

  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0xc00000 123



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}



out_bits()
@@ -465,15 +529,21 @@ out_bits() 
  local tmp=${bit2size[22]}

  bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))



  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  for i in {0..22}

  do

    ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \

           prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0

    ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

           trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \

           dev veth0



    run_test "out_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \

           db01::2 db01::1 veth0 ${bit2type[$i]} 123

    run_test "out_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \

           ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123

  done



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down



  bit2size[22]=$tmp

}
@@ -485,11 +555,16 @@ out_full_supp_trace() 
  ##############################################################################

  local desc="Full supported trace"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0xfff002 ns 123 size 100 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0xfff002 123

  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0xfff002 ns 123 size 100 dev veth0



  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0xfff002 123



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}
@@ -510,11 +585,16 @@ in_undef_ns() 
  ##############################################################################

  local desc="Unknown IOAM namespace"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0x800000 ns 0 size 4 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0x800000 ns 0 size 4 dev veth0



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0x800000 0

  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0x800000 0



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}



in_no_room()
@@ -525,11 +605,16 @@ in_no_room() 
  ##############################################################################

  local desc="Missing trace room"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0xc00000 ns 123 size 4 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0xc00000 ns 123 size 4 dev veth0



  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0xc00000 123



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0xc00000 123

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}



in_bits()
@@ -544,15 +629,21 @@ in_bits() 
  local tmp=${bit2size[22]}

  bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))



  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  for i in {0..22}

  do

    ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \

           prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0

    ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

           trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \

           dev veth0



    run_test "in_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \

           db01::2 db01::1 veth0 ${bit2type[$i]} 123

    run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \

           ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123

  done



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down



  bit2size[22]=$tmp

}
@@ -569,11 +660,16 @@ in_oflag() 
  #   back the IOAM namespace that was previously configured on the sender.

  ip -netns ioam-node-alpha ioam namespace add 123



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0xc00000 ns 123 size 4 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0xc00000 ns 123 size 4 dev veth0



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0xc00000 123

  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0xc00000 123



  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down



  # And we clean the exception for this test to get things back to normal for

  # other INPUT tests
@@ -588,11 +684,16 @@ in_full_supp_trace() 
  ##############################################################################

  local desc="Full supported trace"



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \

         type 0xfff002 ns 123 size 80 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up



  ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \

         trace prealloc type 0xfff002 ns 123 size 80 dev veth0



  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \

         db01::2 db01::1 veth0 0xfff002 123



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \

         db01::1 veth0 0xfff002 123

  [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down

}
@@ -611,11 +712,16 @@ fwd_full_supp_trace() 
  ##############################################################################

  local desc="Forward - Full supported trace"



  ip -netns ioam-node-alpha route change db02::/64 encap ioam6 trace prealloc \

         type 0xfff002 ns 123 size 244 via db01::1 dev veth0

  [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1"

  [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 up



  run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-gamma db01::2 \

         db02::2 veth0 0xfff002 123

  ip -netns ioam-node-alpha route change db02::/64 encap ioam6 mode $mode \

         trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0



  run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-gamma \

         db01::2 db02::2 veth0 0xfff002 123



  [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 down

}
@@ -625,6 +731,9 @@ fwd_full_supp_trace() 
#                                                                              #

################################################################################



npassed=0

nfailed=0



if [ "$(id -u)" -ne 0 ]

then

  echo "SKIP: Need root privileges"