92 lines
2 KiB
Go
92 lines
2 KiB
Go
package subnet
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import (
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"fmt"
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"net"
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"strconv"
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"strings"
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"git.g3e.fr/syonad/two/pkg/db/kv"
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"github.com/dgraph-io/badger/v4"
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)
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type subnetData struct {
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vpc string
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subnetID string
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bridge string
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mode string
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vxlanID int
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localIface string
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interfaceIP net.IP
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cidr *net.IPNet
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vpcCIDR *net.IPNet
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}
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func loadSubnet(db *badger.DB, name string) (subnetData, error) {
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var d subnetData
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d.subnetID = strings.SplitN(name, "-", 2)[1]
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d.bridge = "br-" + d.subnetID
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vpc, err := kv.GetFromDB(db, "subnet/"+name+"/vpc")
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if err != nil {
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return d, fmt.Errorf("get vpc: %w", err)
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}
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d.vpc = vpc
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mode, err := kv.GetFromDB(db, "subnet/"+name+"/mode")
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if err != nil {
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return d, fmt.Errorf("get mode: %w", err)
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}
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d.mode = mode
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if d.mode == "vxlan" {
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vxlanIDStr, err := kv.GetFromDB(db, "subnet/"+name+"/vxlan_id")
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if err != nil {
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return d, fmt.Errorf("get vxlan_id: %w", err)
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}
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vxlanID, err := strconv.Atoi(vxlanIDStr)
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if err != nil {
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return d, fmt.Errorf("parse vxlan_id: %w", err)
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}
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d.vxlanID = vxlanID
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}
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localIface, err := kv.GetFromDB(db, "subnet/"+name+"/local_iface")
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if err != nil {
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return d, fmt.Errorf("get local_iface: %w", err)
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}
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d.localIface = localIface
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interfaceIPStr, err := kv.GetFromDB(db, "subnet/"+name+"/interface_ip")
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if err != nil {
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return d, fmt.Errorf("get interface_ip: %w", err)
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}
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interfaceIP := net.ParseIP(interfaceIPStr)
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if interfaceIP == nil {
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return d, fmt.Errorf("invalid interface_ip: %s", interfaceIPStr)
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}
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d.interfaceIP = interfaceIP
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cidrStr, err := kv.GetFromDB(db, "subnet/"+name+"/cidr")
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if err != nil {
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return d, fmt.Errorf("get cidr: %w", err)
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}
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_, ipNet, err := net.ParseCIDR(cidrStr)
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if err != nil {
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return d, fmt.Errorf("parse cidr: %w", err)
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}
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d.cidr = ipNet
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vpcCIDRStr, err := kv.GetFromDB(db, "vpc/"+d.vpc+"/cidr")
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if err != nil {
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return d, fmt.Errorf("get vpc cidr: %w", err)
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}
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_, vpcIPNet, err := net.ParseCIDR(vpcCIDRStr)
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if err != nil {
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return d, fmt.Errorf("parse vpc cidr: %w", err)
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}
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d.vpcCIDR = vpcIPNet
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return d, nil
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}
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