diff options
Diffstat (limited to 'lib/common-functions.sh')
| -rw-r--r-- | lib/common-functions.sh | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/lib/common-functions.sh b/lib/common-functions.sh index 9aa97e87..055d7fa2 100644 --- a/lib/common-functions.sh +++ b/lib/common-functions.sh @@ -312,3 +312,151 @@ function generate_floating_ip_range { float_range_end=${last_ip} echo "${float_range_start},${float_range_end}" } + +##attach interface to OVS and set the network config correctly +##params: bride to attach to, interface to attach, network type (optional) +##public indicates attaching to a public interface +function attach_interface_to_ovs { + local bridge interface + local if_ip if_mask if_gw if_file ovs_file + + if [[ -z "$1" || -z "$2" ]]; then + return 1 + else + bridge=$1 + interface=$2 + fi + + if ovs-vsctl list-ports ${bridge} | grep ${interface}; then + return 0 + fi + + if_file=/etc/sysconfig/network-scripts/ifcfg-${interface} + ovs_file=/etc/sysconfig/network-scripts/ifcfg-${bridge} + + if [ -e "$if_file" ]; then + if_ip=$(sed -n 's/^IPADDR=\(.*\)$/\1/p' ${if_file}) + if_mask=$(sed -n 's/^NETMASK=\(.*\)$/\1/p' ${if_file}) + if_gw=$(sed -n 's/^GATEWAY=\(.*\)$/\1/p' ${if_file}) + else + echo "ERROR: ifcfg file missing for ${interface}" + return 1 + fi + + if [[ -z "$if_ip" || -z "$if_mask" ]]; then + echo "ERROR: IPADDR or NETMASK missing for ${interface}" + return 1 + elif [[ -z "$if_gw" && "$3" == "public_network" ]]; then + echo "ERROR: GATEWAY missing for ${interface}, which is public" + return 1 + fi + + # move old config file to .orig + mv -f ${if_file} ${if_file}.orig + echo "DEVICE=${interface}, +TYPE=OVSPort, +PEERDNS=no, +BOOTPROTO=static, +NM_CONTROLLED=no, +ONBOOT=yes, +OVS_BRIDGE=${bridge}, +PROMISC=yes" > ${if_file} + + if [ -z ${if_gw} ]; then + # create bridge cfg + echo "DEVICE=${bridge}, +IPADDR=${if_ip}, +NETMASK=${if_mask}, +BOOTPROTO=static, +ONBOOT=yes, +TYPE=OVSBridge, +PROMISC=yes, +PEERDNS=no" > ${ovs_file} + + else + echo "DEVICE=${bridge}, +IPADDR=${if_ip}, +NETMASK=${if_mask}, +BOOTPROTO=static, +ONBOOT=yes, +TYPE=OVSBridge, +PROMISC=yes, +GATEWAY=${if_gw}, +PEERDNS=no" > ${ovs_file} + fi + + sudo systemctl restart network +} + +##detach interface from OVS and set the network config correctly +##params: bridge to detach from +##assumes only 1 real interface attached to OVS +function detach_interface_from_ovs { + local bridge + local port_output ports_no_orig + local net_path + local if_ip if_mask if_gw + + net_path=/etc/sysconfig/network-scripts/ + if [[ -z "$1" ]]; then + return 1 + else + bridge=$1 + fi + + # if no interfaces attached then return + if ! ovs-vsctl list-ports ${bridge} | grep -Ev "vnet[0-9]*"; then + return 0 + fi + + # look for .orig ifcfg files to use + port_output=$(ovs-vsctl list-ports ${bridge} | grep -Ev "vnet[0-9]*") + while read -r line; do + if [ -z "$line" ]; then + continue + elif [ -e ${net_path}/ifcfg-${line}.orig ]; then + mv -f ${net_path}/ifcfg-${line}.orig ${net_path}/ifcfg-${line} + elif [ -e ${net_path}/ifcfg-${bridge} ]; then + if_ip=$(sed -n 's/^IPADDR=\(.*\)$/\1/p' ${if_file}) + if_mask=$(sed -n 's/^NETMASK=\(.*\)$/\1/p' ${if_file}) + if_gw=$(sed -n 's/^GATEWAY=\(.*\)$/\1/p' ${if_file}) + + if [[ -z "$if_ip" || -z "$if_mask" ]]; then + echo "ERROR: IPADDR or NETMASK missing for ${bridge} and no .orig file for interface ${line}" + return 1 + fi + + if [ -z ${if_gw} ]; then + # create if cfg + echo "DEVICE=${line}, +IPADDR=${if_ip}, +NETMASK=${if_mask}, +BOOTPROTO=static, +ONBOOT=yes, +TYPE=Ethernet, +NM_CONTROLLED=no, +PEERDNS=no" > ${net_path}/ifcfg-${line} + else + echo "DEVICE=${line}, +IPADDR=${if_ip}, +NETMASK=${if_mask}, +BOOTPROTO=static, +ONBOOT=yes, +TYPE=Ethernet, +NM_CONTROLLED=no, +GATEWAY=${if_gw}, +PEERDNS=no" > ${net_path}/ifcfg-${line} + fi + break + else + echo "ERROR: Real interface ${line} attached to bridge, but no interface or ${bridge} ifcfg file exists" + return 1 + fi + + done <<< "$port_output" + + # now remove the bridge ifcfg file + rm -f ${net_path}/ifcfg-${bridge} + + sudo systemctl restart network +} |