# SPDX-License-Identifier: GPL-2.0
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mirror_install()
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{
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local from_dev=$1; shift
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local direction=$1; shift
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local to_dev=$1; shift
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local filter=$1; shift
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tc filter add dev $from_dev $direction \
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pref 1000 $filter \
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action mirred egress mirror dev $to_dev
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}
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mirror_uninstall()
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{
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local from_dev=$1; shift
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local direction=$1; shift
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tc filter del dev $swp1 $direction pref 1000
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}
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is_ipv6()
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{
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local addr=$1; shift
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[[ -z ${addr//[0-9a-fA-F:]/} ]]
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}
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mirror_test()
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{
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local vrf_name=$1; shift
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local sip=$1; shift
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local dip=$1; shift
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local dev=$1; shift
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local pref=$1; shift
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local expect=$1; shift
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if is_ipv6 $dip; then
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local proto=-6
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local type="icmp6 type=128" # Echo request.
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else
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local proto=
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local type="icmp echoreq"
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fi
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local t0=$(tc_rule_stats_get $dev $pref)
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$MZ $proto $vrf_name ${sip:+-A $sip} -B $dip -a own -b bc -q \
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-c 10 -d 100msec -t $type
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sleep 0.5
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local t1=$(tc_rule_stats_get $dev $pref)
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local delta=$((t1 - t0))
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# Tolerate a couple stray extra packets.
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((expect <= delta && delta <= expect + 2))
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check_err $? "Expected to capture $expect packets, got $delta."
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}
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do_test_span_dir_ips()
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{
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local expect=$1; shift
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local dev=$1; shift
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local direction=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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icmp_capture_install $dev
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mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
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mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
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icmp_capture_uninstall $dev
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}
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quick_test_span_dir_ips()
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{
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do_test_span_dir_ips 10 "$@"
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}
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fail_test_span_dir_ips()
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{
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do_test_span_dir_ips 0 "$@"
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}
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test_span_dir_ips()
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{
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local dev=$1; shift
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local direction=$1; shift
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local forward_type=$1; shift
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local backward_type=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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quick_test_span_dir_ips "$dev" "$direction" "$ip1" "$ip2"
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icmp_capture_install $dev "type $forward_type"
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mirror_test v$h1 $ip1 $ip2 $dev 100 10
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icmp_capture_uninstall $dev
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icmp_capture_install $dev "type $backward_type"
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mirror_test v$h2 $ip2 $ip1 $dev 100 10
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icmp_capture_uninstall $dev
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}
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fail_test_span_dir()
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{
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fail_test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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test_span_dir()
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{
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test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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do_test_span_vlan_dir_ips()
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{
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local expect=$1; shift
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local dev=$1; shift
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local vid=$1; shift
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local direction=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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# Install the capture as skip_hw to avoid double-counting of packets.
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# The traffic is meant for local box anyway, so will be trapped to
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# kernel.
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vlan_capture_install $dev "skip_hw vlan_id $vid vlan_ethtype ip"
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mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
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mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
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vlan_capture_uninstall $dev
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}
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quick_test_span_vlan_dir_ips()
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{
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do_test_span_vlan_dir_ips 10 "$@"
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}
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fail_test_span_vlan_dir_ips()
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{
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do_test_span_vlan_dir_ips 0 "$@"
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}
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quick_test_span_vlan_dir()
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{
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quick_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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fail_test_span_vlan_dir()
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{
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fail_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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