1# SPDX-License-Identifier: GPL-2.0 2 3mirror_install() 4{ 5 local from_dev=$1; shift 6 local direction=$1; shift 7 local to_dev=$1; shift 8 local filter=$1; shift 9 10 tc filter add dev $from_dev $direction \ 11 pref 1000 $filter \ 12 action mirred egress mirror dev $to_dev 13} 14 15mirror_uninstall() 16{ 17 local from_dev=$1; shift 18 local direction=$1; shift 19 20 tc filter del dev $swp1 $direction pref 1000 21} 22 23mirror_test() 24{ 25 local vrf_name=$1; shift 26 local sip=$1; shift 27 local dip=$1; shift 28 local dev=$1; shift 29 local pref=$1; shift 30 local expect=$1; shift 31 32 local t0=$(tc_rule_stats_get $dev $pref) 33 $MZ $vrf_name ${sip:+-A $sip} -B $dip -a own -b bc -q \ 34 -c 10 -d 100ms -t icmp type=8 35 sleep 0.5 36 local t1=$(tc_rule_stats_get $dev $pref) 37 local delta=$((t1 - t0)) 38 # Tolerate a couple stray extra packets. 39 ((expect <= delta && delta <= expect + 2)) 40 check_err $? "Expected to capture $expect packets, got $delta." 41} 42 43do_test_span_dir_ips() 44{ 45 local expect=$1; shift 46 local dev=$1; shift 47 local direction=$1; shift 48 local ip1=$1; shift 49 local ip2=$1; shift 50 51 icmp_capture_install $dev 52 mirror_test v$h1 $ip1 $ip2 $dev 100 $expect 53 mirror_test v$h2 $ip2 $ip1 $dev 100 $expect 54 icmp_capture_uninstall $dev 55} 56 57quick_test_span_dir_ips() 58{ 59 do_test_span_dir_ips 10 "$@" 60} 61 62fail_test_span_dir_ips() 63{ 64 do_test_span_dir_ips 0 "$@" 65} 66 67test_span_dir_ips() 68{ 69 local dev=$1; shift 70 local direction=$1; shift 71 local forward_type=$1; shift 72 local backward_type=$1; shift 73 local ip1=$1; shift 74 local ip2=$1; shift 75 76 quick_test_span_dir_ips "$dev" "$direction" "$ip1" "$ip2" 77 78 icmp_capture_install $dev "type $forward_type" 79 mirror_test v$h1 $ip1 $ip2 $dev 100 10 80 icmp_capture_uninstall $dev 81 82 icmp_capture_install $dev "type $backward_type" 83 mirror_test v$h2 $ip2 $ip1 $dev 100 10 84 icmp_capture_uninstall $dev 85} 86 87fail_test_span_dir() 88{ 89 fail_test_span_dir_ips "$@" 192.0.2.1 192.0.2.2 90} 91 92test_span_dir() 93{ 94 test_span_dir_ips "$@" 192.0.2.1 192.0.2.2 95} 96 97do_test_span_vlan_dir_ips() 98{ 99 local expect=$1; shift 100 local dev=$1; shift 101 local vid=$1; shift 102 local direction=$1; shift 103 local ip1=$1; shift 104 local ip2=$1; shift 105 106 # Install the capture as skip_hw to avoid double-counting of packets. 107 # The traffic is meant for local box anyway, so will be trapped to 108 # kernel. 109 vlan_capture_install $dev "skip_hw vlan_id $vid vlan_ethtype ip" 110 mirror_test v$h1 $ip1 $ip2 $dev 100 $expect 111 mirror_test v$h2 $ip2 $ip1 $dev 100 $expect 112 vlan_capture_uninstall $dev 113} 114 115quick_test_span_vlan_dir_ips() 116{ 117 do_test_span_vlan_dir_ips 10 "$@" 118} 119 120fail_test_span_vlan_dir_ips() 121{ 122 do_test_span_vlan_dir_ips 0 "$@" 123} 124 125quick_test_span_vlan_dir() 126{ 127 quick_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2 128} 129 130fail_test_span_vlan_dir() 131{ 132 fail_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2 133} 134