62 lines
1.1 KiB
Go
62 lines
1.1 KiB
Go
package net
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import "net"
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import "git.loafle.net/overflow/overflow_discovery/net/model"
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func ScanZone(endChan chan<- bool, zoneChan chan<- *model.DiscoveryZone, logChan chan<- error) {
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var err error
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var ifaces []net.Interface
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var addrs []net.Addr
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var ipnet *net.IPNet
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var zones []*net.IPNet
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if ifaces, err = net.Interfaces(); nil != err {
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logChan <- err
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return
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}
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zones = make([]*net.IPNet, 0)
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for _, i := range ifaces {
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if addrs, err = i.Addrs(); nil != err {
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logChan <- err
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continue
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}
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for _, addr := range addrs {
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// log.Printf("addr: %s", addr.String())
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if _, ipnet, err = net.ParseCIDR(addr.String()); nil != err {
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logChan <- err
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continue
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}
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if ipnet.IP.IsLoopback() || checkSameZone(zones, ipnet) {
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continue
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}
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// log.Printf("zone: %s", ipnet.String())
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zones = append(zones, ipnet)
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dz := &model.DiscoveryZone{
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Iface: i.Name,
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Mac: i.HardwareAddr.String(),
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IP: ipnet.IP.String(),
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}
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zoneChan <- dz
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}
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}
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endChan <- true
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}
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func checkSameZone(zones []*net.IPNet, ipnet *net.IPNet) bool {
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for _, i := range zones {
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if i.Contains(ipnet.IP) {
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return true
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}
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}
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return false
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}
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