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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
}
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=$1; shift
local t0=$(tc_rule_stats_get $dev $pref)
ip vrf exec $vrf_name \
${PING} ${sip:+-I $sip} $dip -c 10 -i 0.1 -w 2 &> /dev/null
local t1=$(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
}
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