6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hangbin Liu <liuhangbin@xxxxxxxxx>
commit 25ae948b447881bf689d459cd5bd4629d9c04b20 upstream.
Add a lib.sh for net selftests. This file can be used to define commonly
used variables and functions. Some commonly used functions can be moved
from forwarding/lib.sh to this lib file. e.g. busywait().
Add function setup_ns() for user to create unique namespaces with given
prefix name.
Reviewed-by: Petr Machata <petrm@xxxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
[PHLin: add lib.sh to TEST_FILES directly as we already have upstream
commit 06efafd8 landed in 6.6.y]
Signed-off-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/net/Makefile | 2
tools/testing/selftests/net/forwarding/lib.sh | 27 --------
tools/testing/selftests/net/lib.sh | 85 ++++++++++++++++++++++++++
3 files changed, 87 insertions(+), 27 deletions(-)
create mode 100644 tools/testing/selftests/net/lib.sh
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -92,7 +92,7 @@ TEST_PROGS += test_vxlan_nolocalbypass.s
TEST_PROGS += test_bridge_backup_port.sh
TEST_FILES := settings
-TEST_FILES += in_netns.sh net_helper.sh setup_loopback.sh setup_veth.sh
+TEST_FILES += in_netns.sh lib.sh net_helper.sh setup_loopback.sh setup_veth.sh
include ../lib.mk
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -4,9 +4,6 @@
##############################################################################
# Defines
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
# Can be overridden by the configuration file.
PING=${PING:=ping}
PING6=${PING6:=ping6}
@@ -41,6 +38,7 @@ if [[ -f $relative_path/forwarding.confi
source "$relative_path/forwarding.config"
fi
+source ../lib.sh
##############################################################################
# Sanity checks
@@ -395,29 +393,6 @@ log_info()
echo "INFO: $msg"
}
-busywait()
-{
- local timeout=$1; shift
-
- local start_time="$(date -u +%s%3N)"
- while true
- do
- local out
- out=$("$@")
- local ret=$?
- if ((!ret)); then
- echo -n "$out"
- return 0
- fi
-
- local current_time="$(date -u +%s%3N)"
- if ((current_time - start_time > timeout)); then
- echo -n "$out"
- return 1
- fi
- done
-}
-
not()
{
"$@"
--- /dev/null
+++ b/tools/testing/selftests/net/lib.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Defines
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+##############################################################################
+# Helpers
+busywait()
+{
+ local timeout=$1; shift
+
+ local start_time="$(date -u +%s%3N)"
+ while true
+ do
+ local out
+ out=$("$@")
+ local ret=$?
+ if ((!ret)); then
+ echo -n "$out"
+ return 0
+ fi
+
+ local current_time="$(date -u +%s%3N)"
+ if ((current_time - start_time > timeout)); then
+ echo -n "$out"
+ return 1
+ fi
+ done
+}
+
+cleanup_ns()
+{
+ local ns=""
+ local errexit=0
+ local ret=0
+
+ # disable errexit temporary
+ if [[ $- =~ "e" ]]; then
+ errexit=1
+ set +e
+ fi
+
+ for ns in "$@"; do
+ ip netns delete "${ns}" &> /dev/null
+ if ! busywait 2 ip netns list \| grep -vq "^$ns$" &> /dev/null; then
+ echo "Warn: Failed to remove namespace $ns"
+ ret=1
+ fi
+ done
+
+ [ $errexit -eq 1 ] && set -e
+ return $ret
+}
+
+# setup netns with given names as prefix. e.g
+# setup_ns local remote
+setup_ns()
+{
+ local ns=""
+ local ns_name=""
+ local ns_list=""
+ for ns_name in "$@"; do
+ # Some test may setup/remove same netns multi times
+ if unset ${ns_name} 2> /dev/null; then
+ ns="${ns_name,,}-$(mktemp -u XXXXXX)"
+ eval readonly ${ns_name}="$ns"
+ else
+ eval ns='$'${ns_name}
+ cleanup_ns "$ns"
+
+ fi
+
+ if ! ip netns add "$ns"; then
+ echo "Failed to create namespace $ns_name"
+ cleanup_ns "$ns_list"
+ return $ksft_skip
+ fi
+ ip -n "$ns" link set lo up
+ ns_list="$ns_list $ns"
+ done
+}
