forked from Minki/linux
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: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guillaume Nault
David S. Miller
parent
4098ced468
commit
203ee5cd72
@ -10,6 +10,7 @@ CONFIG_NET_ACT_MIRRED=m
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CONFIG_NET_ACT_MPLS=m
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CONFIG_NET_ACT_VLAN=m
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CONFIG_NET_CLS_FLOWER=m
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CONFIG_NET_CLS_MATCHALL=m
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CONFIG_NET_SCH_INGRESS=m
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CONFIG_NET_ACT_GACT=m
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CONFIG_VETH=m
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@ -42,6 +42,21 @@ check_tc_version()
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fi
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}
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# Old versions of tc don't understand "mpls_uc"
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check_tc_mpls_support()
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{
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local dev=$1; shift
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tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
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matchall action pipe &> /dev/null
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if [[ $? -ne 0 ]]; then
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echo "SKIP: iproute2 too old; tc is missing MPLS support"
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return 1
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fi
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tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
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matchall
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}
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check_tc_shblock_support()
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{
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tc filter help 2>&1 | grep block &> /dev/null
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@ -3,7 +3,8 @@
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ALL_TESTS="match_dst_mac_test match_src_mac_test match_dst_ip_test \
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match_src_ip_test match_ip_flags_test match_pcp_test match_vlan_test \
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match_ip_tos_test match_indev_test"
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match_ip_tos_test match_indev_test match_mpls_label_test \
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match_mpls_tc_test match_mpls_bos_test match_mpls_ttl_test"
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NUM_NETIFS=2
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source tc_common.sh
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source lib.sh
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@ -334,6 +335,175 @@ match_indev_test()
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log_test "indev match ($tcflags)"
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}
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# Unfortunately, mausezahn can't build MPLS headers when used in L2
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# mode, so we have this function to build Label Stack Entries.
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mpls_lse()
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{
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local label=$1
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local tc=$2
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local bos=$3
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local ttl=$4
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printf "%02x %02x %02x %02x" \
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$((label >> 12)) \
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$((label >> 4 & 0xff)) \
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$((((label & 0xf) << 4) + (tc << 1) + bos)) \
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$ttl
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}
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match_mpls_label_test()
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{
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local ethtype="88 47"; readonly ethtype
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local pkt
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RET=0
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check_tc_mpls_support $h2 || return 0
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tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
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flower $tcflags mpls_label 0 action drop
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tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
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flower $tcflags mpls_label 1048575 action drop
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pkt="$ethtype $(mpls_lse 1048575 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 101 1
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check_fail $? "Matched on a wrong filter (1048575)"
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tc_check_packets "dev $h2 ingress" 102 1
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check_err $? "Did not match on correct filter (1048575)"
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pkt="$ethtype $(mpls_lse 0 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 102 2
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check_fail $? "Matched on a wrong filter (0)"
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tc_check_packets "dev $h2 ingress" 101 1
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check_err $? "Did not match on correct filter (0)"
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tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
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tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
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log_test "mpls_label match ($tcflags)"
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}
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match_mpls_tc_test()
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{
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local ethtype="88 47"; readonly ethtype
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local pkt
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RET=0
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check_tc_mpls_support $h2 || return 0
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tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
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flower $tcflags mpls_tc 0 action drop
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tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
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flower $tcflags mpls_tc 7 action drop
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pkt="$ethtype $(mpls_lse 0 7 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 101 1
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check_fail $? "Matched on a wrong filter (7)"
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tc_check_packets "dev $h2 ingress" 102 1
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check_err $? "Did not match on correct filter (7)"
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pkt="$ethtype $(mpls_lse 0 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 102 2
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check_fail $? "Matched on a wrong filter (0)"
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tc_check_packets "dev $h2 ingress" 101 1
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check_err $? "Did not match on correct filter (0)"
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tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
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tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
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log_test "mpls_tc match ($tcflags)"
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}
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match_mpls_bos_test()
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{
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local ethtype="88 47"; readonly ethtype
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local pkt
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RET=0
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check_tc_mpls_support $h2 || return 0
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tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
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flower $tcflags mpls_bos 0 action drop
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tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
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flower $tcflags mpls_bos 1 action drop
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pkt="$ethtype $(mpls_lse 0 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 101 1
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check_fail $? "Matched on a wrong filter (1)"
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tc_check_packets "dev $h2 ingress" 102 1
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check_err $? "Did not match on correct filter (1)"
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# Need to add a second label to properly mark the Bottom of Stack
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pkt="$ethtype $(mpls_lse 0 0 0 255) $(mpls_lse 0 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 102 2
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check_fail $? "Matched on a wrong filter (0)"
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tc_check_packets "dev $h2 ingress" 101 1
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check_err $? "Did not match on correct filter (0)"
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tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
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tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
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log_test "mpls_bos match ($tcflags)"
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}
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match_mpls_ttl_test()
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{
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local ethtype="88 47"; readonly ethtype
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local pkt
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RET=0
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check_tc_mpls_support $h2 || return 0
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tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
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flower $tcflags mpls_ttl 0 action drop
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tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
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flower $tcflags mpls_ttl 255 action drop
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pkt="$ethtype $(mpls_lse 0 0 1 255)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 101 1
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check_fail $? "Matched on a wrong filter (255)"
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tc_check_packets "dev $h2 ingress" 102 1
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check_err $? "Did not match on correct filter (255)"
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pkt="$ethtype $(mpls_lse 0 0 1 0)"
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$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
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tc_check_packets "dev $h2 ingress" 102 2
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check_fail $? "Matched on a wrong filter (0)"
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tc_check_packets "dev $h2 ingress" 101 1
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check_err $? "Did not match on correct filter (0)"
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tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
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tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
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log_test "mpls_ttl match ($tcflags)"
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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