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# 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
if [[ -z ${expect//[[:digit:]]/} ]]; then
expect="== $expect"
fi
local t0=$(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))
((delta $expect))
check_err $? "Expected to capture $expect packets, got $delta."
}
do_test_span_dir_ips()
{
local expect=$1; shift
local dev=$1; shift
local ip1=$1; shift
local ip2=$1; shift
local forward_type=${1-8}; shift
local backward_type=${1-0}; shift
icmp_capture_install $dev "type $forward_type"
mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
icmp_capture_uninstall $dev
icmp_capture_install $dev "type $backward_type"
mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
icmp_capture_uninstall $dev
}
quick_test_span_dir_ips()
{
local dev=$1; shift
local ip1=$1; shift
local ip2=$1; shift
local forward_type=${1-8}; shift
local backward_type=${1-0}; shift
do_test_span_dir_ips 10 "$dev" "$ip1" "$ip2" \
"$forward_type" "$backward_type"
}
test_span_dir_ips()
{
local dev=$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" "$ip1" "$ip2" \
"$forward_type" "$backward_type"
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
}
test_span_dir()
{
local dev=$1; shift
local forward_type=$1; shift
local backward_type=$1; shift
test_span_dir_ips "$dev" "$forward_type" "$backward_type" \
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 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()
{
local dev=$1; shift
local vid=$1; shift
local ul_proto=$1; shift
local ip1=$1; shift
local ip2=$1; shift
do_test_span_vlan_dir_ips '>= 10' "$dev" "$vid" "$ul_proto" \
"$ip1" "$ip2"
}
fail_test_span_vlan_dir_ips()
{
local dev=$1; shift
local vid=$1; shift
local ul_proto=$1; shift
local ip1=$1; shift
local ip2=$1; shift
do_test_span_vlan_dir_ips 0 "$dev" "$vid" "$ul_proto" "$ip1" "$ip2"
}
quick_test_span_vlan_dir()
{
local dev=$1; shift
local vid=$1; shift
local ul_proto=$1; shift
quick_test_span_vlan_dir_ips "$dev" "$vid" "$ul_proto" \
192.0.2.1 192.0.2.2
}
fail_test_span_vlan_dir()
{
local dev=$1; shift
local vid=$1; shift
local ul_proto=$1; shift
fail_test_span_vlan_dir_ips "$dev" "$vid" "$ul_proto" \
192.0.2.1 192.0.2.2
}
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