forked from Minki/linux
db2c5bfcdf
When running in an environment with poor performance (such as a simulator), processing mirrored packets can take a while. Evaluating the condition too soon leads to spurious "seen 9, expected 10" failures as the last packet doesn't have enough time to get mirrored and the mirror to arrive and bump the observed counters. Wait for one ping interval before evaluating the test. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
136 lines
2.7 KiB
Bash
136 lines
2.7 KiB
Bash
# 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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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=$1; shift
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local ping_timeout=$((PING_TIMEOUT * 5))
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local t0=$(tc_rule_stats_get $dev $pref)
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ip vrf exec $vrf_name \
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${PING} ${sip:+-I $sip} $dip -c 10 -i 0.5 -w $ping_timeout \
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&> /dev/null
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sleep 0.5
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local t1=$(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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