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redacted server local ip get

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This commit is contained in:
0xdcarns 2022-01-13 12:43:17 -05:00
parent 02beb4b4dc
commit 3a43f32f8c
1 changed files with 26 additions and 7 deletions
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33
logic/server.go
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@ -51,14 +51,11 @@ func ServerJoin(networkSettings *models.Network, serverID string) error {
}
if node.LocalRange != "" && node.LocalAddress == "" {
logger.Log(1, "local vpn, getting local address from range:", node.LocalRange)
node.LocalAddress = GetLocalIP(*node)
var _, currentCIDR, cidrErr = net.ParseCIDR(node.LocalRange)
if cidrErr != nil {
return err
}
if !currentCIDR.Contains(net.IP(node.LocalAddress)) {
logger.Log(1, "local vpn, getting local address from range:", networkSettings.LocalRange)
node.LocalAddress, err = getServerLocalIP(networkSettings)
if err != nil {
node.LocalAddress = ""
node.IsLocal = "no"
}
}
@ -432,3 +429,25 @@ func checkNodeActions(node *models.Node) string {
}
return ""
}
func getServerLocalIP(networkSettings *models.Network) (string, error) {
var networkCIDR = networkSettings.LocalRange
var currentAddresses, _ = net.InterfaceAddrs()
var _, currentCIDR, cidrErr = net.ParseCIDR(networkCIDR)
if cidrErr != nil {
logger.Log(1, "error on server local IP, invalid CIDR provided:", networkCIDR)
return "", cidrErr
}
for _, addr := range currentAddresses {
ip, _, err := net.ParseCIDR(addr.String())
if err != nil {
continue
}
if currentCIDR.Contains(ip) {
logger.Log(1, "found local ip on network,", networkSettings.NetID, ", set to", ip.String())
return ip.String(), nil
}
}
return "", errors.New("could not find a local ip for server")
}