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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
NSIM_ID=$((RANDOM % 1024))
NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
NSIM_NETDEV=
num_passes=0
num_errors=0
function cleanup_nsim {
if [ -e $NSIM_DEV_SYS ]; then
echo $NSIM_ID > /sys/bus/netdevsim/del_device
fi
}
function cleanup {
cleanup_nsim
}
trap cleanup EXIT
function check {
local code=$1
local str=$2
local exp_str=$3
local exp_fail=$4
[ -z "$exp_fail" ] && cop="-ne" || cop="-eq"
if [ $code $cop 0 ]; then
((num_errors++))
return
fi
if [ "$str" != "$exp_str" ]; then
echo -e "Expected: '$exp_str', got '$str'"
((num_errors++))
return
fi
((num_passes++))
}
function make_netdev {
# Make a netdevsim
old_netdevs=$(ls /sys/class/net)
if ! $(lsmod | grep -q netdevsim); then
modprobe netdevsim
fi
echo $NSIM_ID > /sys/bus/netdevsim/new_device
# get new device name
ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/
}