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Kroese 2023-04-20 04:19:33 +02:00 committed by GitHub
parent 30fc91f48d
commit 81fd26c2c1
1 changed files with 20 additions and 15 deletions
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35
run/network.sh
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@ -26,29 +26,34 @@ configureDHCP() {
ip a flush eth0
ip a flush ${VM_NET_TAP}
_DhcpIP=$( dhclient -v ${VM_NET_TAP} 2>&1 | grep ^bound | cut -d' ' -f3 )
[[ "${_DhcpIP}" == [0-9.]* ]] \
&& echo "Info: Retrieved IP ${_DhcpIP} via DHCP" \
|| ( echo "ERROR: Cannot retrieve IP from DHCP using MAC ${VM_NET_MAC}" && exit 16 )
DHCP_IP=$( dhclient -v ${VM_NET_TAP} 2>&1 | grep ^bound | cut -d' ' -f3 )
if [[ "${DHCP_IP}" == [0-9.]* ]]; then
echo "Info: Retrieved IP ${DHCP_IP} via DHCP"
else
echo "ERROR: Cannot retrieve IP from DHCP using MAC ${VM_NET_MAC}" && exit 16
fi
ip a flush ${VM_NET_TAP}
_tmpTapPath="/dev/tap$(</sys/class/net/${VM_NET_TAP}/ifindex)"
TAP_PATH="/dev/tap$(</sys/class/net/${VM_NET_TAP}/ifindex)"
# create dev file (there is no udev in container: need to be done manually)
IFS=: read MAJOR MINOR < <(cat /sys/class/net/${VM_NET_TAP}/macvtap/${_tmpTapPath##*/}/uevent)
IFS=: read MAJOR MINOR < <(cat /sys/class/net/${VM_NET_TAP}/macvtap/${TAP_PATH##*/}/uevent)
[[ "x${MAJOR}" != "x" ]] \
&& echo "Info: Please make sure that the following docker setting is used: --device-cgroup-rule='c ${MAJOR}:* rwm'" \
|| ( echo "Info: Macvtap creation issue: Cannot find: /sys/class/net/${VM_NET_TAP}/" && exit 18 )
[[ ! -e ${_tmpTapPath} ]] && [[ -e /dev0/${_tmpTapPath##*/} ]] && ln -s /dev0/${_tmpTapPath##*/} ${_tmpTapPath}
if [[ ! -e ${_tmpTapPath} ]]; then
mknod ${_tmpTapPath} c $MAJOR $MINOR && : || ("ERROR: Cannot mknod: ${_tmpTapPath}" && exit 20)
if [[ "x${MAJOR}" != "x" ]]; then
echo "Info: Please make sure that the following docker setting is used: --device-cgroup-rule='c ${MAJOR}:* rwm'"
else
echo "Info: Macvtap creation issue: Cannot find: /sys/class/net/${VM_NET_TAP}/" && exit 18
fi
exec 30>>$_tmpTapPath
[[ ! -e ${TAP_PATH} ]] && [[ -e /dev0/${TAP_PATH##*/} ]] && ln -s /dev0/${TAP_PATH##*/} ${TAP_PATH}
if [[ ! -e ${TAP_PATH} ]]; then
mknod ${TAP_PATH} c $MAJOR $MINOR && : || ("ERROR: Cannot mknod: ${TAP_PATH}" && exit 20)
fi
exec 30>>$TAP_PATH
exec 40>>/dev/vhost-net
NET_OPTS="-netdev tap,id=hostnet0,vhost=on,vhostfd=40,fd=30"