Commit 203ee5cd authored by Guillaume Nault's avatar Guillaume Nault Committed by David S. Miller

selftests: tc: Add basic mpls_* matching support for tc-flower

Add tests in tc_flower.sh for mpls_label, mpls_tc, mpls_bos and
mpls_ttl. For each keyword, test the minimal and maximal values.

Selectively skip these new mpls tests for tc versions that don't
support them.
Signed-off-by: default avatarGuillaume Nault <gnault@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4098ced4
...@@ -10,6 +10,7 @@ CONFIG_NET_ACT_MIRRED=m ...@@ -10,6 +10,7 @@ CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_MPLS=m CONFIG_NET_ACT_MPLS=m
CONFIG_NET_ACT_VLAN=m CONFIG_NET_ACT_VLAN=m
CONFIG_NET_CLS_FLOWER=m CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_SCH_INGRESS=m CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_ACT_GACT=m CONFIG_NET_ACT_GACT=m
CONFIG_VETH=m CONFIG_VETH=m
......
...@@ -42,6 +42,21 @@ check_tc_version() ...@@ -42,6 +42,21 @@ check_tc_version()
fi fi
} }
# Old versions of tc don't understand "mpls_uc"
check_tc_mpls_support()
{
local dev=$1; shift
tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
matchall action pipe &> /dev/null
if [[ $? -ne 0 ]]; then
echo "SKIP: iproute2 too old; tc is missing MPLS support"
return 1
fi
tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
matchall
}
check_tc_shblock_support() check_tc_shblock_support()
{ {
tc filter help 2>&1 | grep block &> /dev/null tc filter help 2>&1 | grep block &> /dev/null
......
...@@ -3,7 +3,8 @@ ...@@ -3,7 +3,8 @@
ALL_TESTS="match_dst_mac_test match_src_mac_test match_dst_ip_test \ ALL_TESTS="match_dst_mac_test match_src_mac_test match_dst_ip_test \
match_src_ip_test match_ip_flags_test match_pcp_test match_vlan_test \ match_src_ip_test match_ip_flags_test match_pcp_test match_vlan_test \
match_ip_tos_test match_indev_test" match_ip_tos_test match_indev_test match_mpls_label_test \
match_mpls_tc_test match_mpls_bos_test match_mpls_ttl_test"
NUM_NETIFS=2 NUM_NETIFS=2
source tc_common.sh source tc_common.sh
source lib.sh source lib.sh
...@@ -334,6 +335,175 @@ match_indev_test() ...@@ -334,6 +335,175 @@ match_indev_test()
log_test "indev match ($tcflags)" log_test "indev match ($tcflags)"
} }
# Unfortunately, mausezahn can't build MPLS headers when used in L2
# mode, so we have this function to build Label Stack Entries.
mpls_lse()
{
local label=$1
local tc=$2
local bos=$3
local ttl=$4
printf "%02x %02x %02x %02x" \
$((label >> 12)) \
$((label >> 4 & 0xff)) \
$((((label & 0xf) << 4) + (tc << 1) + bos)) \
$ttl
}
match_mpls_label_test()
{
local ethtype="88 47"; readonly ethtype
local pkt
RET=0
check_tc_mpls_support $h2 || return 0
tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
flower $tcflags mpls_label 0 action drop
tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
flower $tcflags mpls_label 1048575 action drop
pkt="$ethtype $(mpls_lse 1048575 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter (1048575)"
tc_check_packets "dev $h2 ingress" 102 1
check_err $? "Did not match on correct filter (1048575)"
pkt="$ethtype $(mpls_lse 0 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 102 2
check_fail $? "Matched on a wrong filter (0)"
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match on correct filter (0)"
tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
log_test "mpls_label match ($tcflags)"
}
match_mpls_tc_test()
{
local ethtype="88 47"; readonly ethtype
local pkt
RET=0
check_tc_mpls_support $h2 || return 0
tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
flower $tcflags mpls_tc 0 action drop
tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
flower $tcflags mpls_tc 7 action drop
pkt="$ethtype $(mpls_lse 0 7 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter (7)"
tc_check_packets "dev $h2 ingress" 102 1
check_err $? "Did not match on correct filter (7)"
pkt="$ethtype $(mpls_lse 0 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 102 2
check_fail $? "Matched on a wrong filter (0)"
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match on correct filter (0)"
tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
log_test "mpls_tc match ($tcflags)"
}
match_mpls_bos_test()
{
local ethtype="88 47"; readonly ethtype
local pkt
RET=0
check_tc_mpls_support $h2 || return 0
tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
flower $tcflags mpls_bos 0 action drop
tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
flower $tcflags mpls_bos 1 action drop
pkt="$ethtype $(mpls_lse 0 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter (1)"
tc_check_packets "dev $h2 ingress" 102 1
check_err $? "Did not match on correct filter (1)"
# Need to add a second label to properly mark the Bottom of Stack
pkt="$ethtype $(mpls_lse 0 0 0 255) $(mpls_lse 0 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 102 2
check_fail $? "Matched on a wrong filter (0)"
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match on correct filter (0)"
tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
log_test "mpls_bos match ($tcflags)"
}
match_mpls_ttl_test()
{
local ethtype="88 47"; readonly ethtype
local pkt
RET=0
check_tc_mpls_support $h2 || return 0
tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
flower $tcflags mpls_ttl 0 action drop
tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
flower $tcflags mpls_ttl 255 action drop
pkt="$ethtype $(mpls_lse 0 0 1 255)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter (255)"
tc_check_packets "dev $h2 ingress" 102 1
check_err $? "Did not match on correct filter (255)"
pkt="$ethtype $(mpls_lse 0 0 1 0)"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
tc_check_packets "dev $h2 ingress" 102 2
check_fail $? "Matched on a wrong filter (0)"
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match on correct filter (0)"
tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
log_test "mpls_ttl match ($tcflags)"
}
setup_prepare() setup_prepare()
{ {
h1=${NETIFS[p1]} h1=${NETIFS[p1]}
......
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