Documentation ¶
Overview ¶
Example (ParseIPRange) ¶
_, allowedv4NetworkA, _ := net.ParseCIDR("192.168.1.0/24") _, allowedv4NetworkB, _ := net.ParseCIDR("192.168.0.0/16") _, allowedv6NetworkA, _ := net.ParseCIDR("fd22:c952:653e:3df6::/64") _, allowedv6NetworkB, _ := net.ParseCIDR("fd22:c952:653e::/48") ipRanges := []string{ // Ranges within allowedv4NetworkA. "192.168.1.1-192.168.1.255", "0.0.0.1-192.168.1.255", "0.0.0.1-0.0.0.255", // Ranges outsde of allowedv4NetworkA but within allowedv4NetworkB. "192.168.0.1-192.168.0.255", "192.168.0.0-192.168.0.0", "0.0.2.0-0.0.2.255", // Invalid IP ranges. "0.0.0.0.1-192.168.1.255", "192.0.0.1-192.0.0.255", "0.0.0.1-01.0.0.255", "0.0.2.1-0.0.0.255", // Ranges within allowedv6NetworkA. "fd22:c952:653e:3df6::1-fd22:c952:653e:3df6::FFFF", "::1-::FFFF", // Ranges outsde of allowedv6NetworkA but within allowedv6NetworkB. "fd22:c952:653e:FFFF::1-fd22:c952:653e:FFFF::FFFF", "::AAAA:FFFF:FFFF:FFFF:1-::AAAA:FFFF:FFFF:FFFF:FFFF", } fmt.Println("With allowed networks") for _, ipRange := range ipRanges { parsedRange, err := parseIPRange(ipRange, allowedv4NetworkA, allowedv4NetworkB, allowedv6NetworkA, allowedv6NetworkB) if err != nil { fmt.Printf("Err: %v\n", err) continue } fmt.Printf("Start: %s, End: %s\n", parsedRange.Start.String(), parsedRange.End.String()) } fmt.Println("Without allowed networks") for _, ipRange := range ipRanges { parsedRange, err := parseIPRange(ipRange) if err != nil { fmt.Printf("Err: %v\n", err) continue } fmt.Printf("Start: %s, End: %s\n", parsedRange.Start.String(), parsedRange.End.String()) }
Output: With allowed networks Start: 192.168.1.1, End: 192.168.1.255 Start: 192.168.1.1, End: 192.168.1.255 Start: 192.168.1.1, End: 192.168.1.255 Start: 192.168.0.1, End: 192.168.0.255 Start: 192.168.0.0, End: 192.168.0.0 Start: 192.168.2.0, End: 192.168.2.255 Err: Start IP "0.0.0.0.1" is invalid Err: IP range "192.0.0.1-192.0.0.255" does not fall within any of the allowed networks [192.168.1.0/24 192.168.0.0/16 fd22:c952:653e:3df6::/64 fd22:c952:653e::/48] Err: IP range "0.0.0.1-01.0.0.255" does not fall within any of the allowed networks [192.168.1.0/24 192.168.0.0/16 fd22:c952:653e:3df6::/64 fd22:c952:653e::/48] Err: Start IP "0.0.2.1" must be less than End IP "0.0.0.255" Start: fd22:c952:653e:3df6::1, End: fd22:c952:653e:3df6::ffff Start: fd22:c952:653e:3df6::1, End: fd22:c952:653e:3df6::ffff Start: fd22:c952:653e:ffff::1, End: fd22:c952:653e:ffff::ffff Start: fd22:c952:653e:aaaa:ffff:ffff:ffff:1, End: fd22:c952:653e:aaaa:ffff:ffff:ffff:ffff Without allowed networks Start: 192.168.1.1, End: 192.168.1.255 Start: 0.0.0.1, End: 192.168.1.255 Start: 0.0.0.1, End: 0.0.0.255 Start: 192.168.0.1, End: 192.168.0.255 Start: 192.168.0.0, End: 192.168.0.0 Start: 0.0.2.0, End: 0.0.2.255 Err: Start IP "0.0.0.0.1" is invalid Start: 192.0.0.1, End: 192.0.0.255 Start: 0.0.0.1, End: 1.0.0.255 Err: Start IP "0.0.2.1" must be less than End IP "0.0.0.255" Start: fd22:c952:653e:3df6::1, End: fd22:c952:653e:3df6::ffff Start: ::1, End: ::ffff Start: fd22:c952:653e:ffff::1, End: fd22:c952:653e:ffff::ffff Start: ::aaaa:ffff:ffff:ffff:1, End: ::aaaa:ffff:ffff:ffff:ffff
Index ¶
- Constants
- Variables
- func AttachInterface(bridgeName string, devName string) error
- func BridgeVLANDefaultPVID(interfaceName string) (string, error)
- func BridgeVLANFilterSetStatus(interfaceName string, status string) error
- func BridgeVLANFilteringStatus(interfaceName string) (string, error)
- func BridgeVLANSetDefaultPVID(interfaceName string, vlanID string) error
- func DefaultGatewaySubnetV4() (*net.IPNet, string, error)
- func DetachInterface(bridgeName string, devName string) error
- func ForkdnsServersList(networkName string) ([]string, error)
- func GetDevMTU(devName string) (uint32, error)
- func GetHostDevice(parent string, vlan string) string
- func GetLeaseAddresses(networkName string, hwaddr string) ([]net.IP, error)
- func GetMACSlice(hwaddr string) []string
- func GetNeighbourIPs(interfaceName string, hwaddr string) ([]net.IP, error)
- func InterfaceExists(nic string) bool
- func InterfaceRemove(nic string) error
- func InterfaceSetMTU(nic string, mtu string) error
- func IsNativeBridge(bridgeName string) bool
- func OVNInstanceDevicePortAdd(network Network, instanceID int, instanceName string, deviceName string, ...) (openvswitch.OVNSwitchPort, error)
- func OVNInstanceDevicePortDelete(network Network, instanceID int, deviceName string) error
- func OVNInstanceDevicePortDynamicIPs(network Network, instanceID int, deviceName string) ([]net.IP, error)
- func RandomDevName(prefix string) string
- func UpdateDNSMasqStatic(s *state.State, networkName string) error
- func UsedBy(s *state.State, networkProjectName string, networkName string, firstOnly bool) ([]string, error)
- func VLANInterfaceCreate(parent string, vlanDevice string, vlanID string) (bool, error)
- type Info
- type Network
- type Type
Examples ¶
Constants ¶
const ForkdnsServersListFile = "servers.conf"
ForkdnsServersListFile file that contains the server candidates list.
const ForkdnsServersListPath = "forkdns.servers"
ForkdnsServersListPath defines the path that contains the forkdns server candidate file.
Variables ¶
var ErrUnknownDriver = fmt.Errorf("Unknown driver")
ErrUnknownDriver is the "Unknown driver" error
Functions ¶
func AttachInterface ¶
AttachInterface attaches an interface to a bridge.
func BridgeVLANDefaultPVID ¶
BridgeVLANDefaultPVID returns the VLAN default port VLAN ID (PVID).
func BridgeVLANFilterSetStatus ¶
BridgeVLANFilterSetStatus sets the status of VLAN filtering on a bridge interface.
func BridgeVLANFilteringStatus ¶
BridgeVLANFilteringStatus returns whether VLAN filtering is enabled on a bridge interface.
func BridgeVLANSetDefaultPVID ¶
BridgeVLANSetDefaultPVID sets the VLAN default port VLAN ID (PVID).
func DefaultGatewaySubnetV4 ¶
DefaultGatewaySubnetV4 returns subnet of default gateway interface.
func DetachInterface ¶
DetachInterface detaches an interface from a bridge.
func ForkdnsServersList ¶
ForkdnsServersList reads the server list file and returns the list as a slice.
func GetHostDevice ¶
GetHostDevice returns the interface name to use for a combination of parent device name and VLAN ID. If no vlan ID supplied, parent name is returned unmodified. If non-empty VLAN ID is supplied then it will look for an existing VLAN device and return that, otherwise it will return the default "parent.vlan" format as name.
func GetLeaseAddresses ¶
GetLeaseAddresses returns the lease addresses for a network and hwaddr.
func GetNeighbourIPs ¶
GetNeighbourIPs returns the IP addresses in the neighbour cache for a particular interface and MAC.
func InterfaceExists ¶
InterfaceExists returns true if network interface exists.
func InterfaceRemove ¶
InterfaceRemove removes a network interface by name.
func InterfaceSetMTU ¶
InterfaceSetMTU sets the MTU of a network interface.
func IsNativeBridge ¶
IsNativeBridge returns whether the bridge name specified is a Linux native bridge.
func OVNInstanceDevicePortAdd ¶
func OVNInstanceDevicePortAdd(network Network, instanceID int, instanceName string, deviceName string, mac net.HardwareAddr, ips []net.IP) (openvswitch.OVNSwitchPort, error)
OVNInstanceDevicePortAdd adds a logical port to the OVN network's internal switch and returns the logical port name for use linking an OVS port on the integration bridge to the logical switch port.
func OVNInstanceDevicePortDelete ¶
OVNInstanceDevicePortDelete deletes a logical port from the OVN network's internal switch.
func OVNInstanceDevicePortDynamicIPs ¶
func OVNInstanceDevicePortDynamicIPs(network Network, instanceID int, deviceName string) ([]net.IP, error)
OVNInstanceDevicePortDynamicIPs gets a logical port's dynamic IPs stored in the OVN network's internal switch.
func RandomDevName ¶
RandomDevName returns a random device name with prefix. If the random string combined with the prefix exceeds 13 characters then empty string is returned. This is to ensure we support buggy dhclient applications: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=858580
func UpdateDNSMasqStatic ¶
UpdateDNSMasqStatic rebuilds the DNSMasq static allocations.
func UsedBy ¶
func UsedBy(s *state.State, networkProjectName string, networkName string, firstOnly bool) ([]string, error)
UsedBy returns list of API resources using network. Accepts firstOnly argument to indicate that only the first resource using network should be returned. This can help to quickly check if the network is in use.
Types ¶
type Info ¶
type Info struct { Projects bool // Indicates if driver can be used in network enabled projects. NodeSpecificConfig bool // Whether driver has cluster node specific config as a prerequisite for creation. }
Info represents information about a network driver.
type Network ¶
type Network interface { Type // Config. Validate(config map[string]string) error ID() int64 Name() string Description() string Status() string Config() map[string]string IsUsed() (bool, error) DHCPv4Subnet() *net.IPNet DHCPv6Subnet() *net.IPNet DHCPv4Ranges() []shared.IPRange DHCPv6Ranges() []shared.IPRange // Actions. Create(clientType cluster.ClientType) error Start() error Stop() error Rename(name string) error Update(newNetwork api.NetworkPut, targetNode string, clientType cluster.ClientType) error HandleHeartbeat(heartbeatData *cluster.APIHeartbeat) error Delete(clientType cluster.ClientType) error // contains filtered or unexported methods }
Network represents an instantiated LXD network.