#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

source "$(dirname $(realpath $0))/../../kselftest/ktap_helpers.sh"

readonly ipv4_args=('--ip_version=ipv4 '
		    '--local_ip=192.168.0.1 '
		    '--gateway_ip=192.168.0.1 '
		    '--netmask_ip=255.255.0.0 '
		    '--remote_ip=192.0.2.1 '
		    '-D CMSG_LEVEL_IP=SOL_IP '
		    '-D CMSG_TYPE_RECVERR=IP_RECVERR ')

readonly ipv6_args=('--ip_version=ipv6 '
		    '--mtu=1520 '
		    '--local_ip=fd3d:0a0b:17d6::1 '
		    '--gateway_ip=fd3d:0a0b:17d6:8888::1 '
		    '--remote_ip=fd3d:fa7b:d17d::1 '
		    '-D CMSG_LEVEL_IP=SOL_IPV6 '
		    '-D CMSG_TYPE_RECVERR=IPV6_RECVERR ')

if [ $# -ne 1 ]; then
	ktap_exit_fail_msg "usage: $0 <script>"
	exit "$KSFT_FAIL"
fi
script="$(basename $1)"

if [ -z "$(which packetdrill)" ]; then
	ktap_skip_all "packetdrill not found in PATH"
	exit "$KSFT_SKIP"
fi

declare -a optargs
failfunc=ktap_test_fail

if [[ -n "${KSFT_MACHINE_SLOW}" ]]; then
	optargs+=('--tolerance_usecs=14000')

	# xfail tests that are known flaky with dbg config, not fixable.
	# still run them for coverage (and expect 100% pass without dbg).
	declare -ar xfail_list=(
		"tcp_eor_no-coalesce-retrans.pkt"
		"tcp_fast_recovery_prr-ss.*.pkt"
		"tcp_slow_start_slow-start-after-win-update.pkt"
		"tcp_timestamping.*.pkt"
		"tcp_user_timeout_user-timeout-probe.pkt"
		"tcp_zerocopy_epoll_.*.pkt"
		"tcp_tcp_info_tcp-info-.*-limited.pkt"
	)
	readonly xfail_regex="^($(printf '%s|' "${xfail_list[@]}"))$"
	[[ "$script" =~ ${xfail_regex} ]] && failfunc=ktap_test_xfail
fi

ktap_print_header
ktap_set_plan 2

unshare -n packetdrill ${ipv4_args[@]} ${optargs[@]} $script > /dev/null \
	&& ktap_test_pass "ipv4" || $failfunc "ipv4"
unshare -n packetdrill ${ipv6_args[@]} ${optargs[@]} $script > /dev/null \
	&& ktap_test_pass "ipv6" || $failfunc "ipv6"

ktap_finished