mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-17 03:44:56 -05:00
112 lines
2.1 KiB
Go
112 lines
2.1 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package openstack
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import "fmt"
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// parseServerAddresses parses the untyped Addresses field of a sever struct.
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func parseSeverAddresses(addrsMap map[string]any) ([]serverSubnetAddresses, error) {
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result := []serverSubnetAddresses{}
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for name, v := range addrsMap {
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subnet := serverSubnetAddresses{NetworkName: name}
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v, ok := v.([]any)
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if !ok {
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return nil, fmt.Errorf("server address %q is not of form []any", name)
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}
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for _, v := range v {
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nic := serverAddress{}
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v, ok := v.(map[string]any)
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if !ok {
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return nil, fmt.Errorf("element in server address %q is not of form []map[string]any", name)
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}
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if mac, ok := v["OS-EXT-IPS-MAC:mac_addr"].(string); ok {
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nic.MAC = mac
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}
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if ip, ok := v["addr"].(string); ok {
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nic.IP = ip
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}
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if ipVersion, ok := v["version"].(float64); ok {
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version, err := ipVersionFromFloat(ipVersion)
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if err != nil {
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return nil, err
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}
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nic.IPVersion = version
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}
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if typ, ok := v["OS-EXT-IPS:type"].(string); ok {
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ipType, err := ipTypeFromString(typ)
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if err != nil {
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return nil, err
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}
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nic.Type = ipType
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}
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subnet.Addresses = append(subnet.Addresses, nic)
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}
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result = append(result, subnet)
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}
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return result, nil
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}
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type serverSubnetAddresses struct {
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NetworkName string
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Addresses []serverAddress
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}
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type serverAddress struct {
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Type ipType
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IPVersion ipVersion
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IP string
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MAC string
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}
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type ipVersion int
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const (
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ipVUnknown ipVersion = 0
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ipV4 ipVersion = 4
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ipV6 ipVersion = 6
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)
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func ipVersionFromFloat(f float64) (ipVersion, error) {
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switch f {
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case 4:
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return ipV4, nil
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case 6:
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return ipV6, nil
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default:
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return 0, fmt.Errorf("unknown IP version %f", f)
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}
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}
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type ipType string
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const (
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unknownIP ipType = "unknown"
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fixedIP ipType = "fixed"
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floatingIP ipType = "floating"
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)
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func ipTypeFromString(s string) (ipType, error) {
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switch s {
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case "fixed":
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return fixedIP, nil
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case "floating":
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return floatingIP, nil
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default:
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return unknownIP, fmt.Errorf("unknown IP type %s", s)
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}
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}
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