Commit f9a5a9d8 authored by David Ahern's avatar David Ahern Committed by David S. Miller

selftests: fib_tests: Add ipv6 route add append replace tests

Add IPv6 route tests covering add, append and replace permutations.
Assumes the ability to add a basic single path route works; this is
required for example when adding an address to an interface.

$ fib_tests.sh -t ipv6_rt

IPv6 route add / append tests
    TEST: Attempt to add duplicate route - gw                           [ OK ]
    TEST: Attempt to add duplicate route - dev only                     [ OK ]
    TEST: Attempt to add duplicate route - reject route                 [ OK ]
    TEST: Add new route for existing prefix (w/o NLM_F_EXCL)            [ OK ]
    TEST: Append nexthop to existing route - gw                         [ OK ]
    TEST: Append nexthop to existing route - dev only                   [ OK ]
    TEST: Append nexthop to existing route - reject route               [ OK ]
    TEST: Append nexthop to existing reject route - gw                  [ OK ]
    TEST: Append nexthop to existing reject route - dev only            [ OK ]
    TEST: Add multipath route                                           [ OK ]
    TEST: Attempt to add duplicate multipath route                      [ OK ]
    TEST: Route add with different metrics                              [ OK ]
    TEST: Route delete with metric                                      [ OK ]

IPv6 route replace tests
    TEST: Single path with single path                                  [ OK ]
    TEST: Single path with multipath                                    [ OK ]
    TEST: Single path with reject route                                 [ OK ]
    TEST: Single path with single path via multipath attribute          [ OK ]
    TEST: Invalid nexthop                                               [ OK ]
    TEST: Single path - replace of non-existent route                   [ OK ]
    TEST: Multipath with multipath                                      [ OK ]
    TEST: Multipath with single path                                    [ OK ]
    TEST: Multipath with single path via multipath attribute            [ OK ]
    TEST: Multipath with reject route                                   [ OK ]
    TEST: Multipath - invalid first nexthop                             [ OK ]
    TEST: Multipath - invalid second nexthop                            [ OK ]
    TEST: Multipath - replace of non-existent route                     [ OK ]
Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7df15e6c
......@@ -6,7 +6,7 @@
ret=0
TESTS="unregister down carrier nexthop"
TESTS="unregister down carrier nexthop ipv6_rt"
VERBOSE=0
PAUSE_ON_FAIL=no
PAUSE=no
......@@ -573,6 +573,338 @@ fib_nexthop_test()
cleanup
}
################################################################################
# Tests on route add and replace
run_cmd()
{
local cmd="$1"
local out
local stderr="2>/dev/null"
if [ "$VERBOSE" = "1" ]; then
printf " COMMAND: $cmd\n"
stderr=
fi
out=$(eval $cmd $stderr)
rc=$?
if [ "$VERBOSE" = "1" -a -n "$out" ]; then
echo " $out"
fi
[ "$VERBOSE" = "1" ] && echo
return $rc
}
# add route for a prefix, flushing any existing routes first
# expected to be the first step of a test
add_route6()
{
local pfx="$1"
local nh="$2"
local out
if [ "$VERBOSE" = "1" ]; then
echo
echo " ##################################################"
echo
fi
run_cmd "$IP -6 ro flush ${pfx}"
[ $? -ne 0 ] && exit 1
out=$($IP -6 ro ls match ${pfx})
if [ -n "$out" ]; then
echo "Failed to flush routes for prefix used for tests."
exit 1
fi
run_cmd "$IP -6 ro add ${pfx} ${nh}"
if [ $? -ne 0 ]; then
echo "Failed to add initial route for test."
exit 1
fi
}
# add initial route - used in replace route tests
add_initial_route6()
{
add_route6 "2001:db8:104::/64" "$1"
}
check_route6()
{
local pfx="2001:db8:104::/64"
local expected="$1"
local out
local rc=0
out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
if [ -z "${out}" ]; then
if [ "$VERBOSE" = "1" ]; then
printf "\nNo route entry found\n"
printf "Expected:\n"
printf " ${expected}\n"
fi
return 1
fi
# tricky way to convert output to 1-line without ip's
# messy '\'; this drops all extra white space
out=$(echo ${out})
if [ "${out}" != "${expected}" ]; then
rc=1
if [ "${VERBOSE}" = "1" ]; then
printf " Unexpected route entry. Have:\n"
printf " ${out}\n"
printf " Expected:\n"
printf " ${expected}\n\n"
fi
fi
return $rc
}
route_cleanup()
{
$IP li del red 2>/dev/null
$IP li del dummy1 2>/dev/null
$IP li del veth1 2>/dev/null
$IP li del veth3 2>/dev/null
cleanup &> /dev/null
}
route_setup()
{
route_cleanup
setup
[ "${VERBOSE}" = "1" ] && set -x
set -e
$IP li add red up type vrf table 101
$IP li add veth1 type veth peer name veth2
$IP li add veth3 type veth peer name veth4
$IP li set veth1 up
$IP li set veth3 up
$IP li set veth2 vrf red up
$IP li set veth4 vrf red up
$IP li add dummy1 type dummy
$IP li set dummy1 vrf red up
$IP -6 addr add 2001:db8:101::1/64 dev veth1
$IP -6 addr add 2001:db8:101::2/64 dev veth2
$IP -6 addr add 2001:db8:103::1/64 dev veth3
$IP -6 addr add 2001:db8:103::2/64 dev veth4
$IP -6 addr add 2001:db8:104::1/64 dev dummy1
set +ex
}
# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv6_rt_add()
{
local rc
echo
echo "IPv6 route add / append tests"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
log_test $? 2 "Attempt to add duplicate route - gw"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
log_test $? 2 "Attempt to add duplicate route - dev only"
# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
log_test $? 2 "Attempt to add duplicate route - reject route"
# iproute2 prepend only sets NLM_F_CREATE
# - adds a new route; does NOT convert existing route to ECMP
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro prepend 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024 2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Add new route for existing prefix (w/o NLM_F_EXCL)"
# route append with same prefix adds a new route
# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Append nexthop to existing route - gw"
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append 2001:db8:104::/64 dev veth3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop dev veth3 weight 1"
log_test $? 0 "Append nexthop to existing route - dev only"
# multipath route can not have a nexthop that is a reject route
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro append unreachable 2001:db8:104::/64"
log_test $? 2 "Append nexthop to existing route - reject route"
# reject route can not be converted to multipath route
run_cmd "$IP -6 ro flush 2001:db8:104::/64"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
log_test $? 2 "Append nexthop to existing reject route - gw"
run_cmd "$IP -6 ro flush 2001:db8:104::/64"
run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
run_cmd "$IP -6 ro append 2001:db8:104::/64 dev veth3"
log_test $? 2 "Append nexthop to existing reject route - dev only"
# insert mpath directly
add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Add multipath route"
add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
log_test $? 2 "Attempt to add duplicate multipath route"
# insert of a second route without append but different metric
add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
rc=$?
fi
log_test $rc 0 "Route add with different metrics"
run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
rc=$?
if [ $rc -eq 0 ]; then
check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
rc=$?
fi
log_test $rc 0 "Route delete with metric"
}
ipv6_rt_replace_single()
{
# single path with single path
#
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Single path with single path"
# single path with multipath
#
add_initial_route6 "nexthop via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Single path with multipath"
# single path with reject
#
add_initial_route6 "nexthop via 2001:db8:101::2"
run_cmd "$IP -6 ro replace unreachable 2001:db8:104::/64"
check_route6 "unreachable 2001:db8:104::/64 dev lo metric 1024"
log_test $? 0 "Single path with reject route"
# single path with single path using MULTIPATH attribute
#
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
log_test $? 0 "Single path with single path via multipath attribute"
# route replace fails - invalid nexthop
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
if [ $? -eq 0 ]; then
# previous command is expected to fail so if it returns 0
# that means the test failed.
log_test 0 1 "Invalid nexthop"
else
check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
log_test $? 0 "Invalid nexthop"
fi
# replace non-existent route
# - note use of change versus replace since ip adds NLM_F_CREATE
# for replace
add_initial_route6 "via 2001:db8:101::2"
run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
log_test $? 2 "Single path - replace of non-existent route"
}
ipv6_rt_replace_mpath()
{
# multipath with multipath
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
log_test $? 0 "Multipath with multipath"
# multipath with single
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
log_test $? 0 "Multipath with single path"
# multipath with single
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
log_test $? 0 "Multipath with single path via multipath attribute"
# multipath with reject
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace unreachable 2001:db8:104::/64"
check_route6 "unreachable 2001:db8:104::/64 dev lo metric 1024"
log_test $? 0 "Multipath with reject route"
# route replace fails - invalid nexthop 1
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid first nexthop"
# route replace fails - invalid nexthop 2
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
log_test $? 0 "Multipath - invalid second nexthop"
# multipath non-existent route
add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
log_test $? 2 "Multipath - replace of non-existent route"
}
ipv6_rt_replace()
{
echo
echo "IPv6 route replace tests"
ipv6_rt_replace_single
ipv6_rt_replace_mpath
}
ipv6_route_test()
{
route_setup
ipv6_rt_add
ipv6_rt_replace
route_cleanup
}
################################################################################
# usage
......@@ -635,6 +967,7 @@ do
fib_down_test|down) fib_down_test;;
fib_carrier_test|carrier) fib_carrier_test;;
fib_nexthop_test|nexthop) fib_nexthop_test;;
ipv6_route_test|ipv6_rt) ipv6_route_test;;
help) echo "Test names: $TESTS"; exit 0;;
esac
......
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