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set addresses appropriately based on if network is using ipv6/4

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This commit is contained in:
0xdcarns 2022-04-19 14:17:21 -04:00
parent a78ebaaad1
commit ca1c75b620
3 changed files with 39 additions and 95 deletions
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13
logic/extpeers.go
View file

@ -125,16 +125,21 @@ func CreateExtClient(extclient *models.ExtClient) error {
extclient.PublicKey = privateKey.PublicKey().String()
}
if extclient.Address == "" {
newAddress, err := UniqueAddress(extclient.Network)
parentNetwork, err := GetNetwork(extclient.Network)
if err != nil {
return err
}
if extclient.Address == "" && parentNetwork.IsIPv4 == "yes" {
newAddress, err := UniqueAddress(extclient.Network, false)
if err != nil {
return err
}
extclient.Address = newAddress
}
if extclient.Address6 == "" {
addr6, err := UniqueAddress6(extclient.Network)
if extclient.Address6 == "" && parentNetwork.IsIPv6 == "yes" {
addr6, err := UniqueAddress6(extclient.Network, false)
if err != nil {
return err
}

94
logic/networks.go
View file

@ -173,7 +173,7 @@ func GetNetworkSettings(networkname string) (models.Network, error) {
}
// UniqueAddress - see if address is unique
func UniqueAddress(networkName string) (string, error) {
func UniqueAddress(networkName string, reverse bool) (string, error) {
var network models.Network
network, err := GetParentNetwork(networkName)
@ -192,7 +192,12 @@ func UniqueAddress(networkName string) (string, error) {
return "666", err
}
for ; newAddr.ToAddressString().IsValid(); newAddr = newAddr.Increment(1) {
incVal := 1
if reverse {
incVal = -1
}
for ; newAddr.ToAddressString().IsValid(); newAddr = newAddr.Increment(int64(incVal)) {
if IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, false) &&
IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, false) {
return newAddr.GetNetIPAddr().IP.String(), nil
@ -202,64 +207,6 @@ func UniqueAddress(networkName string) (string, error) {
return "W1R3: NO UNIQUE ADDRESSES AVAILABLE", errors.New("ERROR: No unique addresses available. Check network subnet")
}
// UniqueAddressServer - get unique address starting from last available
func UniqueAddressServer(networkName string) (string, error) {
var network models.Network
network, err := GetParentNetwork(networkName)
if err != nil {
logger.Log(0, "UniqueAddressServer encountered an error")
return "666", err
}
if network.IsIPv4 == "no" {
return "", fmt.Errorf("IPv4 not active on network " + networkName)
}
newAddr, err := ips.GetLastAddr(network.AddressRange)
if err != nil {
logger.Log(0, "UniqueAddressServer encountered an error")
return "666", err
}
for ; newAddr.ToAddressString().IsValid(); newAddr = newAddr.Increment(-1) {
if IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, false) &&
IsIPUnique(networkName, newAddr.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, false) {
return newAddr.GetNetIPAddr().IP.String(), nil
}
}
return "W1R3: NO UNIQUE ADDRESSES AVAILABLE", fmt.Errorf("no unique server addresses found")
}
// UniqueAddress6Server - get unique address starting from last available
func UniqueAddress6Server(networkName string) (string, error) {
network, err := GetParentNetwork(networkName)
if err != nil {
logger.Log(0, "UniqueAddressServer encountered an error")
return "666", err
}
if network.IsIPv6 == "no" {
return "", fmt.Errorf("IPv6 not active on network " + networkName)
}
newAddr6, err := ips.GetLastAddr6(network.AddressRange6)
if err != nil {
return "666", err
}
for ; newAddr6.ToAddressString().IsValid(); newAddr6 = newAddr6.Increment(-1) {
if IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, true) &&
IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, true) {
return newAddr6.GetNetIPAddr().IP.String(), nil
}
}
return "W1R3: NO UNIQUE ADDRESSES AVAILABLE", fmt.Errorf("no unique server addresses found")
}
// IsIPUnique - checks if an IP is unique
func IsIPUnique(network string, ip string, tableName string, isIpv6 bool) bool {
@ -290,7 +237,7 @@ func IsIPUnique(network string, ip string, tableName string, isIpv6 bool) bool {
}
// UniqueAddress6 - see if ipv6 address is unique
func UniqueAddress6(networkName string) (string, error) {
func UniqueAddress6(networkName string, reverse bool) (string, error) {
var network models.Network
network, err := GetParentNetwork(networkName)
@ -307,7 +254,12 @@ func UniqueAddress6(networkName string) (string, error) {
return "666", err
}
for ; newAddr6.ToAddressString().IsValid(); newAddr6 = newAddr6.Increment(1) {
incVal := 1
if reverse {
incVal = -1
}
for ; newAddr6.ToAddressString().IsValid(); newAddr6 = newAddr6.Increment(int64(incVal)) {
if IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.NODES_TABLE_NAME, true) &&
IsIPUnique(networkName, newAddr6.GetNetIPAddr().IP.String(), database.EXT_CLIENT_TABLE_NAME, true) {
return newAddr6.GetNetIPAddr().IP.String(), nil
@ -395,9 +347,9 @@ func UpdateNetworkLocalAddresses(networkName string) error {
var ipaddr string
var iperr error
if node.IsServer == "yes" {
ipaddr, iperr = UniqueAddressServer(networkName)
ipaddr, iperr = UniqueAddress(networkName, true)
} else {
ipaddr, iperr = UniqueAddress(networkName)
ipaddr, iperr = UniqueAddress(networkName, false)
}
if iperr != nil {
fmt.Println("error in node address assignment!")
@ -489,9 +441,9 @@ func UpdateNetworkNodeAddresses(networkName string) error {
var ipaddr string
var iperr error
if node.IsServer == "yes" {
ipaddr, iperr = UniqueAddressServer(networkName)
ipaddr, iperr = UniqueAddress(networkName, true)
} else {
ipaddr, iperr = UniqueAddress(networkName)
ipaddr, iperr = UniqueAddress(networkName, false)
}
if iperr != nil {
fmt.Println("error in node address assignment!")
@ -552,16 +504,6 @@ func UpdateNetwork(currentNetwork *models.Network, newNetwork *models.Network) (
return false, false, false, errors.New("failed to update network " + newNetwork.NetID + ", cannot change netid.")
}
// Inc - increments an IP
func Inc(ip net.IP) {
for j := len(ip) - 1; j >= 0; j-- {
ip[j]++
if ip[j] > 0 {
break
}
}
}
// GetNetwork - gets a network from database
func GetNetwork(networkname string) (models.Network, error) {

27
logic/nodes.go
View file

@ -270,20 +270,25 @@ func CreateNode(node *models.Node) error {
SetNodeDefaults(node)
if node.IsServer == "yes" {
if node.Address, err = UniqueAddressServer(node.Network); err != nil {
return err
defaultACLVal := acls.Allowed
parentNetwork, err := GetNetwork(node.Network)
if err == nil {
if parentNetwork.DefaultACL != "yes" {
defaultACLVal = acls.NotAllowed
}
} else if node.Address == "" {
if node.Address, err = UniqueAddress(node.Network); err != nil {
}
reverse := node.IsServer == "yes"
if node.Address == "" && parentNetwork.IsIPv4 == "yes" {
if node.Address, err = UniqueAddress(node.Network, reverse); err != nil {
return err
}
} else if !IsIPUnique(node.Network, node.Address, database.NODES_TABLE_NAME, false) {
return fmt.Errorf("invalid address: ipv4 " + node.Address + " is not unique")
}
if node.Address6 == "" {
if node.Address6, err = UniqueAddress6(node.Network); err != nil {
if node.Address6 == "" && parentNetwork.IsIPv6 == "yes" {
if node.Address6, err = UniqueAddress6(node.Network, reverse); err != nil {
return err
}
} else if !IsIPUnique(node.Network, node.Address6, database.NODES_TABLE_NAME, true) {
@ -312,14 +317,6 @@ func CreateNode(node *models.Node) error {
return err
}
defaultACLVal := acls.Allowed
parentNetwork, err := GetNetwork(node.Network)
if err == nil {
if parentNetwork.DefaultACL != "yes" {
defaultACLVal = acls.NotAllowed
}
}
_, err = nodeacls.CreateNodeACL(nodeacls.NetworkID(node.Network), nodeacls.NodeID(node.ID), defaultACLVal)
if err != nil {
logger.Log(1, "failed to create node ACL for node,", node.ID, "err:", err.Error())