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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | # SPDX-License-Identifier: GPL-2.0 mirror_install() { local from_dev=$1; shift local direction=$1; shift local to_dev=$1; shift local filter=$1; shift tc filter add dev $from_dev $direction \ pref 1000 $filter \ action mirred egress mirror dev $to_dev } mirror_uninstall() { local from_dev=$1; shift local direction=$1; shift tc filter del dev $swp1 $direction pref 1000 } is_ipv6() { local addr=$1; shift [[ -z ${addr//[0-9a-fA-F:]/} ]] } mirror_test() { local vrf_name=$1; shift local sip=$1; shift local dip=$1; shift local dev=$1; shift local pref=$1; shift local expect=$1; shift if is_ipv6 $dip; then local proto=-6 local type="icmp6 type=128" # Echo request. else local proto= local type="icmp echoreq" fi local t0=$(tc_rule_stats_get $dev $pref) $MZ $proto $vrf_name ${sip:+-A $sip} -B $dip -a own -b bc -q \ -c 10 -d 100msec -t $type sleep 0.5 local t1=$(tc_rule_stats_get $dev $pref) local delta=$((t1 - t0)) # Tolerate a couple stray extra packets. ((expect <= delta && delta <= expect + 2)) check_err $? "Expected to capture $expect packets, got $delta." } do_test_span_dir_ips() { local expect=$1; shift local dev=$1; shift local direction=$1; shift local ip1=$1; shift local ip2=$1; shift icmp_capture_install $dev mirror_test v$h1 $ip1 $ip2 $dev 100 $expect mirror_test v$h2 $ip2 $ip1 $dev 100 $expect icmp_capture_uninstall $dev } quick_test_span_dir_ips() { do_test_span_dir_ips 10 "$@" } fail_test_span_dir_ips() { do_test_span_dir_ips 0 "$@" } test_span_dir_ips() { local dev=$1; shift local direction=$1; shift local forward_type=$1; shift local backward_type=$1; shift local ip1=$1; shift local ip2=$1; shift quick_test_span_dir_ips "$dev" "$direction" "$ip1" "$ip2" icmp_capture_install $dev "type $forward_type" mirror_test v$h1 $ip1 $ip2 $dev 100 10 icmp_capture_uninstall $dev icmp_capture_install $dev "type $backward_type" mirror_test v$h2 $ip2 $ip1 $dev 100 10 icmp_capture_uninstall $dev } fail_test_span_dir() { fail_test_span_dir_ips "$@" 192.0.2.1 192.0.2.2 } test_span_dir() { test_span_dir_ips "$@" 192.0.2.1 192.0.2.2 } do_test_span_vlan_dir_ips() { local expect=$1; shift local dev=$1; shift local vid=$1; shift local direction=$1; shift local ul_proto=$1; shift local ip1=$1; shift local ip2=$1; shift # Install the capture as skip_hw to avoid double-counting of packets. # The traffic is meant for local box anyway, so will be trapped to # kernel. vlan_capture_install $dev "skip_hw vlan_id $vid vlan_ethtype $ul_proto" mirror_test v$h1 $ip1 $ip2 $dev 100 $expect mirror_test v$h2 $ip2 $ip1 $dev 100 $expect vlan_capture_uninstall $dev } quick_test_span_vlan_dir_ips() { do_test_span_vlan_dir_ips 10 "$@" } fail_test_span_vlan_dir_ips() { do_test_span_vlan_dir_ips 0 "$@" } quick_test_span_vlan_dir() { quick_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2 } fail_test_span_vlan_dir() { fail_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2 } |