9e48ee80ac
As pointed out by Michal Kubecek, getting the name with the previous approach was racy, it's better and easier to get the name of the device with this patch's approach. Essentialy the function doesn't need to exist anymore as it's a simple 'ls' command. Signed-off-by: Antonio Cardace <acardace@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
53 lines
989 B
Bash
53 lines
989 B
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0-only
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NSIM_ID=$((RANDOM % 1024))
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NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
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NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
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NSIM_NETDEV=
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num_passes=0
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num_errors=0
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function cleanup_nsim {
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if [ -e $NSIM_DEV_SYS ]; then
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echo $NSIM_ID > /sys/bus/netdevsim/del_device
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fi
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}
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function cleanup {
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cleanup_nsim
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}
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trap cleanup EXIT
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function check {
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local code=$1
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local str=$2
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local exp_str=$3
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if [ $code -ne 0 ]; then
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((num_errors++))
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return
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fi
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if [ "$str" != "$exp_str" ]; then
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echo -e "Expected: '$exp_str', got '$str'"
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((num_errors++))
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return
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fi
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((num_passes++))
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}
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function make_netdev {
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# Make a netdevsim
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old_netdevs=$(ls /sys/class/net)
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if ! $(lsmod | grep -q netdevsim); then
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modprobe netdevsim
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fi
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echo $NSIM_ID > /sys/bus/netdevsim/new_device
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# get new device name
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ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/
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}
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