1 files changed, 92 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh
new file mode 100755
index 000000000000..a0b71723a818
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk_prereqs.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 2020 Intel Corporation.
+
+ksft_pass=0
+ksft_fail=1
+ksft_xfail=2
+ksft_xpass=3
+ksft_skip=4
+
+XSKOBJ=xskxceiver
+
+validate_root_exec()
+{
+	msg="skip all tests:"
+	if [ $UID != 0 ]; then
+		echo $msg must be run as root >&2
+		test_exit $ksft_fail
+	else
+		return $ksft_pass
+	fi
+}
+
+validate_veth_support()
+{
+	msg="skip all tests:"
+	if [ $(ip link add $1 type veth 2>/dev/null; echo $?;) != 0 ]; then
+		echo $msg veth kernel support not available >&2
+		test_exit $ksft_skip
+	else
+		ip link del $1
+		return $ksft_pass
+	fi
+}
+
+test_status()
+{
+	statusval=$1
+	if [ $statusval -eq $ksft_fail ]; then
+		echo "$2: [ FAIL ]"
+	elif [ $statusval -eq $ksft_skip ]; then
+		echo "$2: [ SKIPPED ]"
+	elif [ $statusval -eq $ksft_pass ]; then
+		echo "$2: [ PASS ]"
+	fi
+}
+
+test_exit()
+{
+	if [ $1 -ne 0 ]; then
+		test_status $1 $(basename $0)
+	fi
+	exit 1
+}
+
+clear_configs()
+{
+	if [ $(ip netns show | grep $3 &>/dev/null; echo $?;) == 0 ]; then
+		[ $(ip netns exec $3 ip link show $2 &>/dev/null; echo $?;) == 0 ] &&
+			{ ip netns exec $3 ip link del $2; }
+		ip netns del $3
+	fi
+	#Once we delete a veth pair node, the entire veth pair is removed,
+	#this is just to be cautious just incase the NS does not exist then
+	#veth node inside NS won't get removed so we explicitly remove it
+	[ $(ip link show $1 &>/dev/null; echo $?;) == 0 ] &&
+		{ ip link del $1; }
+}
+
+cleanup_exit()
+{
+	clear_configs $1 $2 $3
+}
+
+validate_ip_utility()
+{
+	[ ! $(type -P ip) ] && { echo "'ip' not found. Skipping tests."; test_exit $ksft_skip; }
+}
+
+exec_xskxceiver()
+{
+        if [[ $busy_poll -eq 1 ]]; then
+	        ARGS+="-b "
+	fi
+
+	./${XSKOBJ} -i ${VETH0} -i ${VETH1},${NS1} ${ARGS}
+
+	retval=$?
+	test_status $retval "${TEST_NAME}"
+	statusList+=($retval)
+	nameList+=(${TEST_NAME})
+}