selftests/net/forwarding: Add a test case for tc-flower of mixed port and port-range

After this patch:

 # ./tc_flower_port_range.sh
 TEST: Port range matching - IPv4 UDP                                [ OK ]
 TEST: Port range matching - IPv4 TCP                                [ OK ]
 TEST: Port range matching - IPv6 UDP                                [ OK ]
 TEST: Port range matching - IPv6 TCP                                [ OK ]
 TEST: Port range matching - IPv4 UDP Drop                           [ OK ]

Cc: Qiang Zhang <dtzq01@gmail.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250218043210.732959-3-xiyou.wangcong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh b/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh
index 3885a2a91f7d8a3a94b851562415af340351a17e..baed5e380dae43c3b020ff0d64bf50fb2d38a160 100755 (executable)
--- a/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh
+++ b/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh
@@ -20,6 +20,7 @@ ALL_TESTS="
        test_port_range_ipv4_tcp
        test_port_range_ipv6_udp
        test_port_range_ipv6_tcp
+       test_port_range_ipv4_udp_drop
 "
 
 NUM_NETIFS=4
@@ -194,6 +195,51 @@ test_port_range_ipv6_tcp()
        __test_port_range $proto $ip_proto $sip $dip $mode "$name"
 }
 
+test_port_range_ipv4_udp_drop()
+{
+       local proto=ipv4
+       local ip_proto=udp
+       local sip=192.0.2.1
+       local dip=192.0.2.2
+       local mode="-4"
+       local name="IPv4 UDP Drop"
+       local dmac=$(mac_get $h2)
+       local smac=$(mac_get $h1)
+       local sport_min=2000
+       local sport_max=3000
+       local sport_mid=$((sport_min + (sport_max - sport_min) / 2))
+       local dport=5000
+
+       RET=0
+
+       tc filter add dev $swp1 ingress protocol $proto handle 101 pref 1 \
+               flower src_ip $sip dst_ip $dip ip_proto $ip_proto \
+               src_port $sport_min-$sport_max \
+               dst_port $dport \
+               action drop
+
+       # Test ports outside range - should pass
+       $MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+               -t $ip_proto "sp=$((sport_min - 1)),dp=$dport"
+       $MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+               -t $ip_proto "sp=$((sport_max + 1)),dp=$dport"
+
+       # Test ports inside range - should be dropped
+       $MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+               -t $ip_proto "sp=$sport_min,dp=$dport"
+       $MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+               -t $ip_proto "sp=$sport_mid,dp=$dport"
+       $MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+               -t $ip_proto "sp=$sport_max,dp=$dport"
+
+       tc_check_packets "dev $swp1 ingress" 101 3
+       check_err $? "Filter did not drop the expected number of packets"
+
+       tc filter del dev $swp1 ingress protocol $proto pref 1 handle 101 flower
+
+       log_test "Port range matching - $name"
+}
+
 setup_prepare()
 {
        h1=${NETIFS[p1]}