refactor peer calculations

This commit is contained in:
Matthew R Kasun 2022-06-14 14:36:30 +00:00
parent 242a46cda9
commit 34263a6e2f
5 changed files with 160 additions and 486 deletions

View file

@ -5,7 +5,6 @@ import (
"errors"
"fmt"
"sort"
"strings"
"time"
"github.com/go-playground/validator/v10"
@ -96,25 +95,6 @@ func UncordonNode(nodeid string) (models.Node, error) {
return node, err
}
// GetPeers - gets the peers of a given server node
func GetPeers(node *models.Node) ([]models.Node, error) {
if IsLeader(node) {
setNetworkServerPeers(node)
}
peers, err := GetPeersList(node)
if err != nil {
if strings.Contains(err.Error(), RELAY_NODE_ERR) {
peers, err = PeerListUnRelay(node.ID, node.Network)
if err != nil {
return nil, err
}
} else {
return nil, err
}
}
return peers, nil
}
// SetIfLeader - gets the peers of a given server node
func SetPeersIfLeader(node *models.Node) {
if IsLeader(node) {
@ -704,3 +684,19 @@ func FindRelay(node *models.Node) *models.Node {
}
return nil
}
func findNode(ip string) (*models.Node, error) {
nodes, err := GetAllNodes()
if err != nil {
return nil, err
}
for _, node := range nodes {
if node.Address == ip {
return &node, nil
}
if node.Address6 == ip {
return &node, nil
}
}
return nil, errors.New("node not found")
}

View file

@ -1,6 +1,7 @@
package logic
import (
"errors"
"fmt"
"log"
"net"
@ -9,216 +10,25 @@ import (
"time"
"github.com/c-robinson/iplib"
"github.com/gravitl/netmaker/database"
"github.com/gravitl/netmaker/logger"
"github.com/gravitl/netmaker/logic/acls"
"github.com/gravitl/netmaker/logic/acls/nodeacls"
"github.com/gravitl/netmaker/models"
"github.com/gravitl/netmaker/servercfg"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
)
// GetNodePeers - fetches peers for a given node
func GetNodePeers(network *models.Network, nodeid string, excludeRelayed bool, isP2S bool) ([]models.Node, error) {
var peers []models.Node
// networkNodes = all nodes in network
// egressNetworkNodes = all egress gateways in network
var networkNodes, egressNetworkNodes, err = getNetworkEgressAndNodes(network.NetID)
if err != nil {
return peers, nil
}
// udppeers = the peers parsed from the local interface
// gives us correct port to reach
udppeers, errN := database.GetPeers(network.NetID)
if errN != nil {
logger.Log(2, errN.Error())
}
// gets all the ACL rules
currentNetworkACLs, aclErr := nodeacls.FetchAllACLs(nodeacls.NetworkID(network.NetID))
if aclErr != nil {
return peers, aclErr
}
/*
at this point we have 4 lists of node information:
- networkNodes: all nodes in network (models.Node)
- egressNetworkNodes: all egress gateways in network (models.Node)
- udppeers: all peers in database (parsed by server off of active WireGuard interface)
- currentNetworkACLs: all ACL rules associated with the network
- peers: a currently empty list that will be filled and returned
*/
// we now parse through all networkNodes and format properly to set as "peers"
for _, node := range networkNodes {
// skip over any node that is disallowed by ACL rules
if !currentNetworkACLs.IsAllowed(acls.AclID(nodeid), acls.AclID(node.ID)) {
continue
}
// create an empty model to fill with peer info
var peer = models.Node{}
// set egress gateway information if it's an egress gateway
if node.IsEgressGateway == "yes" { // handle egress stuff
peer.EgressGatewayRanges = node.EgressGatewayRanges
peer.IsEgressGateway = node.IsEgressGateway
}
// set ingress gateway information
peer.IsIngressGateway = node.IsIngressGateway
/*
- similar to ACLs, we must determine if peer is allowed based on Relay information
- if the nodes is "not relayed" (not behind a relay), it is ok
- if the node IS relayed, but excludeRelay has not been marked, it is ok
- excludeRelayed is marked for any node that is NOT a Relay Server
- therefore, the peer is allowed as long as it is not "relayed", or the node it is being sent to is its relay server
*/
allow := node.IsRelayed != "yes" || !excludeRelayed
// confirm conditions allow node to be added as peer
// node should be in same network, not pending, and "allowed" based on above logic
if node.Network == network.NetID && node.IsPending != "yes" && allow {
// node info is cleansed to remove sensitive info using setPeerInfo
peer = setPeerInfo(&node)
// Sets ListenPort to UDP Hole Punching Port assuming:
// - UDP Hole Punching is enabled
// - udppeers retrieval did not return an error
// - the endpoint is valid
if node.UDPHolePunch == "yes" && errN == nil && CheckEndpoint(udppeers[node.PublicKey]) {
endpointstring := udppeers[node.PublicKey]
endpointarr := strings.Split(endpointstring, ":")
if len(endpointarr) == 2 {
port, err := strconv.Atoi(endpointarr[1])
if err == nil {
peer.ListenPort = int32(port)
}
}
}
// if udp hole punching is on, but the node's port is still set to default (e.g. 51821), use the LocalListenPort
// or, if port is for some reason zero use the LocalListenPort
// but only do this if LocalListenPort is not zero
if node.UDPHolePunch == "yes" &&
((peer.ListenPort == node.ListenPort || peer.ListenPort == 0) && node.LocalListenPort != 0) {
peer.ListenPort = node.LocalListenPort
}
// if the node is a relay, append the network cidr and any relayed egress ranges
if node.IsRelay == "yes" { // TODO, check if addressrange6 needs to be appended
peer.AllowedIPs = append(peer.AllowedIPs, network.AddressRange)
for _, egressNode := range egressNetworkNodes {
if egressNode.IsRelayed == "yes" && StringSliceContains(node.RelayAddrs, egressNode.Address) {
peer.AllowedIPs = append(peer.AllowedIPs, egressNode.EgressGatewayRanges...)
}
}
}
// if the node is an ingress gateway, append all the extclient allowedips
if peer.IsIngressGateway == "yes" { // handle ingress stuff
if currentExtClients, err := GetExtPeersList(&node); err == nil {
for i := range currentExtClients {
if network.IsIPv4 == "yes" && currentExtClients[i].Address != "" {
peer.AllowedIPs = append(peer.AllowedIPs, currentExtClients[i].Address)
}
if network.IsIPv6 == "yes" && currentExtClients[i].Address6 != "" {
peer.AllowedIPs = append(peer.AllowedIPs, currentExtClients[i].Address6)
}
}
}
}
// dont appent if this isn't a p2p network or if ACLs disallow
if (!isP2S || peer.IsHub == "yes") && currentNetworkACLs.IsAllowed(acls.AclID(nodeid), acls.AclID(node.ID)) {
peers = append(peers, peer)
}
}
}
return peers, err
}
// GetPeersList - gets the peers of a given network
func GetPeersList(refnode *models.Node) ([]models.Node, error) {
var peers []models.Node
var err error
var isP2S bool
var networkName = refnode.Network
var excludeRelayed = refnode.IsRelay != "yes"
var relayedNodeAddr string
if refnode.IsRelayed == "yes" {
relayedNodeAddr = refnode.Address
}
network, err := GetNetwork(networkName)
if err != nil {
return peers, err
} else if network.IsPointToSite == "yes" && refnode.IsHub != "yes" {
isP2S = true
}
if refnode.IsRelayed != "yes" {
// if the node is not being relayed, retrieve peers as normal
peers, err = GetNodePeers(&network, refnode.ID, excludeRelayed, isP2S)
} else {
var relayNode models.Node
// If this node IS being relayed node, we must first retrieve its relay
relayNode, err = GetNodeRelay(networkName, relayedNodeAddr)
if relayNode.Address != "" && err == nil {
// we must cleanse sensitive info from the relay node
var peerNode = setPeerInfo(&relayNode)
// we must append the CIDR to the relay so the relayed node can reach the network
peerNode.AllowedIPs = append(peerNode.AllowedIPs, network.AddressRange)
// we must append the egress ranges to the relay so the relayed node can reach egress
var _, egressNetworkNodes, err = getNetworkEgressAndNodes(networkName)
if err == nil {
for _, egress := range egressNetworkNodes {
if egress.Address != relayedNodeAddr {
peerNode.AllowedIPs = append(peerNode.AllowedIPs, egress.EgressGatewayRanges...)
}
}
}
// get the other peers that are behind the Relay
// we dont want to go through the relay to reach them
// I'm not sure if this is actually a good call to have this here
// may want to test without it, I think it may return bad info
nodepeers, err := GetNodePeers(&network, refnode.ID, false, isP2S)
if err == nil && peerNode.UDPHolePunch == "yes" {
for _, nodepeer := range nodepeers {
// im not sure if this is good either
if nodepeer.Address == peerNode.Address {
// peerNode.Endpoint = nodepeer.Endpoint
peerNode.ListenPort = nodepeer.ListenPort
}
}
}
if !isP2S || peerNode.IsHub == "yes" {
peers = append(peers, peerNode)
}
}
}
return peers, err
}
// GetPeerUpdate - gets a wireguard peer config for each peer of a node
func GetPeerUpdate(node *models.Node) (models.PeerUpdate, error) {
var peerUpdate models.PeerUpdate
var peers []wgtypes.PeerConfig
var serverNodeAddresses = []models.ServerAddr{}
currentPeers, err := GetPeers(node)
currentPeers, err := GetNetworkNodes(node.Network)
if err != nil {
return models.PeerUpdate{}, err
}
if node.IsRelayed == "yes" {
return GetPeerUpdateForRelayedNode(node)
}
// #1 Set Keepalive values: set_keepalive
// #2 Set local address: set_local - could be a LOT BETTER and fix some bugs with additional logic
@ -228,6 +38,14 @@ func GetPeerUpdate(node *models.Node) (models.PeerUpdate, error) {
//skip yourself
continue
}
if !nodeacls.AreNodesAllowed(nodeacls.NetworkID(node.Network), nodeacls.NodeID(node.ID), nodeacls.NodeID(peer.ID)) {
//skip if not permitted by acl
continue
}
if peer.IsRelayed == "yes" {
//skip -- willl be added to relay
continue
}
pubkey, err := wgtypes.ParseKey(peer.PublicKey)
if err != nil {
return models.PeerUpdate{}, err
@ -406,6 +224,48 @@ func GetAllowedIPs(node, peer *models.Node) []net.IPNet {
}
}
}
// handle ingress gateway peers
if peer.IsIngressGateway == "yes" {
extPeers, err := getExtPeers(peer)
if err != nil {
logger.Log(2, "could not retrieve ext peers for ", peer.Name, err.Error())
}
for _, extPeer := range extPeers {
allowedips = append(allowedips, extPeer.AllowedIPs...)
}
}
// handle relay gateway peers
if peer.IsRelay == "yes" {
for _, ip := range peer.RelayAddrs {
//find node ID of relayed peer
relayedPeer, err := findNode(ip)
if err != nil {
logger.Log(0, "failed to find node for ip ", ip, err.Error())
}
if relayedPeer.ID == node.ID {
//skip self
continue
}
//check if acl permits comms
if !nodeacls.AreNodesAllowed(nodeacls.NetworkID(node.Network), nodeacls.NodeID(node.ID), nodeacls.NodeID(relayedPeer.ID)) {
continue
}
if iplib.Version(net.ParseIP(ip)) == 4 {
relayAddr := net.IPNet{
IP: net.ParseIP(ip),
Mask: net.CIDRMask(32, 32),
}
allowedips = append(allowedips, relayAddr)
}
if iplib.Version(net.ParseIP(ip)) == 6 {
relayAddr := net.IPNet{
IP: net.ParseIP(ip),
Mask: net.CIDRMask(128, 128),
}
allowedips = append(allowedips, relayAddr)
}
}
}
return allowedips
}
@ -425,3 +285,89 @@ func getPeerDNS(network string) string {
}
return dns
}
func GetPeerUpdateForRelayedNode(node *models.Node) (models.PeerUpdate, error) {
var peerUpdate models.PeerUpdate
var peers []wgtypes.PeerConfig
var serverNodeAddresses = []models.ServerAddr{}
var allowedips []net.IPNet
//find node that is relaying us
relay := FindRelay(node)
if relay == nil {
return models.PeerUpdate{}, errors.New("not found")
}
//add relay to lists of allowed ip
if relay.Address != "" {
relayIP := net.IPNet{
IP: net.ParseIP(relay.Address),
Mask: net.CIDRMask(32, 32),
}
allowedips = append(allowedips, relayIP)
}
if relay.Address6 != "" {
relayIP6 := net.IPNet{
IP: net.ParseIP(relay.Address6),
Mask: net.CIDRMask(128, 128),
}
allowedips = append(allowedips, relayIP6)
}
//get PeerUpdate for relayed node
relayPeerUpdate, err := GetPeerUpdate(relay)
if err != nil {
return models.PeerUpdate{}, err
}
//add the relays allowed ips from all of the relay's peers
for _, peer := range relayPeerUpdate.Peers {
allowedips = append(allowedips, peer.AllowedIPs...)
}
//delete any ips not permitted by acl
for i, ip := range allowedips {
target, err := findNode(ip.IP.String())
if err != nil {
logger.Log(0, "failed to find node for ip", ip.IP.String(), err.Error())
continue
}
if !nodeacls.AreNodesAllowed(nodeacls.NetworkID(node.Network), nodeacls.NodeID(node.ID), nodeacls.NodeID(target.ID)) {
logger.Log(0, "deleting node from relayednode per acl", node.Name, target.Name)
allowedips = append(allowedips[:i], allowedips[i+1:]...)
}
}
//delete self from allowed ips
for i, ip := range allowedips {
if ip.IP.String() == node.Address || ip.IP.String() == node.Address6 {
allowedips = append(allowedips[:i], allowedips[i+1:]...)
}
}
pubkey, err := wgtypes.ParseKey(relay.PublicKey)
if err != nil {
return models.PeerUpdate{}, err
}
endpoint := relay.Endpoint + ":" + strconv.FormatInt(int64(relay.ListenPort), 10)
address, err := net.ResolveUDPAddr("udp", endpoint)
if err != nil {
return models.PeerUpdate{}, err
}
var keepalive time.Duration
if node.PersistentKeepalive != 0 {
// set_keepalive
keepalive, _ = time.ParseDuration(strconv.FormatInt(int64(node.PersistentKeepalive), 10) + "s")
}
var peerData = wgtypes.PeerConfig{
PublicKey: pubkey,
Endpoint: address,
ReplaceAllowedIPs: true,
AllowedIPs: allowedips,
PersistentKeepaliveInterval: &keepalive,
}
peers = append(peers, peerData)
if relay.IsServer == "yes" {
serverNodeAddresses = append(serverNodeAddresses, models.ServerAddr{IsLeader: IsLeader(relay), Address: relay.Address})
}
peerUpdate.Network = node.Network
peerUpdate.ServerVersion = servercfg.Version
peerUpdate.Peers = peers
peerUpdate.ServerAddrs = serverNodeAddresses
peerUpdate.DNS = getPeerDNS(node.Network)
return peerUpdate, nil
}

View file

@ -105,15 +105,6 @@ func SetNodeIsRelayed(yesOrno string, id string) (models.Node, error) {
return node, database.Insert(node.ID, string(data), database.NODES_TABLE_NAME)
}
// PeerListUnRelay - call this function if a relayed node fails to get its relay: unrelays node and gets new peer list
func PeerListUnRelay(id string, network string) ([]models.Node, error) {
node, err := SetNodeIsRelayed("no", id)
if err != nil {
return nil, err
}
return GetPeersList(&node)
}
// ValidateRelay - checks if relay is valid
func ValidateRelay(relay models.RelayRequest) error {
var err error

View file

@ -6,14 +6,9 @@ import (
"net"
"os"
"runtime"
"strconv"
"strings"
"time"
"github.com/c-robinson/iplib"
"github.com/gravitl/netmaker/logger"
"github.com/gravitl/netmaker/logic/acls"
"github.com/gravitl/netmaker/logic/acls/nodeacls"
"github.com/gravitl/netmaker/models"
"github.com/gravitl/netmaker/netclient/ncutils"
"github.com/gravitl/netmaker/servercfg"
@ -193,210 +188,11 @@ func ServerUpdate(serverNode *models.Node, ifaceDelta bool) error {
// GetServerPeers - gets peers of server
func GetServerPeers(serverNode *models.Node) ([]wgtypes.PeerConfig, bool, []string, error) {
hasGateway := false
var gateways []string
var peers []wgtypes.PeerConfig
var nodes []models.Node // fill above fields from server or client
var err error
nodes, err = GetPeers(serverNode)
update, err := GetPeerUpdate(serverNode)
if err != nil {
return nil, hasGateway, gateways, err
return []wgtypes.PeerConfig{}, false, []string{}, err
}
keepalive := serverNode.PersistentKeepalive
keepalivedur, err := time.ParseDuration(strconv.FormatInt(int64(keepalive), 10) + "s")
if err != nil {
logger.Log(1, "Issue with format of keepalive duration value, Please view server config:", err.Error())
return nil, hasGateway, gateways, err
}
currentNetworkACL, err := nodeacls.FetchAllACLs(nodeacls.NetworkID(serverNode.Network))
if err != nil {
logger.Log(1, "could not fetch current ACL list, proceeding with all peers")
}
for _, node := range nodes {
pubkey, err := wgtypes.ParseKey(node.PublicKey)
if err != nil {
logger.Log(1, "error parsing key", pubkey.String())
return peers, hasGateway, gateways, err
}
if serverNode.PublicKey == node.PublicKey {
continue
}
if serverNode.Endpoint == node.Endpoint {
if serverNode.LocalAddress != node.LocalAddress && node.LocalAddress != "" {
node.Endpoint = node.LocalAddress
} else {
continue
}
}
if currentNetworkACL != nil && !(currentNetworkACL.IsAllowed(acls.AclID(serverNode.ID), acls.AclID(node.ID))) {
continue
}
var peer wgtypes.PeerConfig
var allowedips = []net.IPNet{}
if node.Address != "" {
var peeraddr = net.IPNet{
IP: net.ParseIP(node.Address),
Mask: net.CIDRMask(32, 32),
}
if peeraddr.IP != nil && peeraddr.Mask != nil {
allowedips = append(allowedips, peeraddr)
}
}
if node.Address6 != "" {
var addr6 = net.IPNet{
IP: net.ParseIP(node.Address6),
Mask: net.CIDRMask(128, 128),
}
if addr6.IP != nil && addr6.Mask != nil {
allowedips = append(allowedips, addr6)
}
}
// handle manually set peers
for _, allowedIp := range node.AllowedIPs {
if iplib.Version(net.ParseIP(allowedIp)) == 4 {
if _, ipnet, err := net.ParseCIDR(allowedIp); err == nil {
nodeEndpointArr := strings.Split(node.Endpoint, ":")
if !ipnet.Contains(net.IP(nodeEndpointArr[0])) && ipnet.IP.String() != node.Address { // don't need to add an allowed ip that already exists..
allowedips = append(allowedips, *ipnet)
}
} else if appendip := net.ParseIP(allowedIp); appendip != nil && allowedIp != node.Address {
ipnet := net.IPNet{
IP: net.ParseIP(allowedIp),
Mask: net.CIDRMask(32, 32),
}
allowedips = append(allowedips, ipnet)
}
} else if iplib.Version(net.ParseIP(allowedIp)) == 6 {
//ipnet : = iplib.Net6FromStr(allowedIp).IP()
ipnet := net.IPNet{
IP: iplib.Net6FromStr(allowedIp).IP(),
Mask: net.CIDRMask(128, 128),
}
allowedips = append(allowedips, ipnet)
}
}
// handle egress gateway peers
if node.IsEgressGateway == "yes" {
hasGateway = true
ranges := node.EgressGatewayRanges
for _, iprange := range ranges { // go through each cidr for egress gateway
_, ipnet, err := net.ParseCIDR(iprange) // confirming it's valid cidr
if err != nil {
logger.Log(1, "could not parse gateway IP range. Not adding", iprange)
continue // if can't parse CIDR
}
nodeEndpointArr := strings.Split(node.Endpoint, ":") // getting the public ip of node
if ipnet.Contains(net.ParseIP(nodeEndpointArr[0])) { // ensuring egress gateway range does not contain public ip of node
logger.Log(2, "egress IP range of", iprange, "overlaps with", node.Endpoint, ", omitting")
continue // skip adding egress range if overlaps with node's ip
}
if ipnet.Contains(net.ParseIP(serverNode.LocalAddress)) { // ensuring egress gateway range does not contain public ip of node
logger.Log(2, "egress IP range of", iprange, "overlaps with", serverNode.LocalAddress, ", omitting")
continue // skip adding egress range if overlaps with node's local ip
}
gateways = append(gateways, iprange)
if err != nil {
logger.Log(1, "ERROR ENCOUNTERED SETTING GATEWAY:", err.Error())
} else {
allowedips = append(allowedips, *ipnet)
}
}
}
peer = wgtypes.PeerConfig{
PublicKey: pubkey,
PersistentKeepaliveInterval: &(keepalivedur),
ReplaceAllowedIPs: true,
AllowedIPs: allowedips,
}
peers = append(peers, peer)
}
if serverNode.IsIngressGateway == "yes" {
extPeers, err := GetServerExtPeers(serverNode)
if err == nil {
peers = append(peers, extPeers...)
} else {
logger.Log(1, "ERROR RETRIEVING EXTERNAL PEERS ON SERVER:", err.Error())
}
extPeers = nil
}
return peers, hasGateway, gateways, err
}
// GetServerExtPeers - gets the extpeers for a client
func GetServerExtPeers(serverNode *models.Node) ([]wgtypes.PeerConfig, error) {
var peers []wgtypes.PeerConfig
var extPeers []models.Node
var err error
var tempPeers []models.ExtPeersResponse
tempPeers, err = GetExtPeersList(serverNode)
if err != nil {
return nil, err
}
for i := 0; i < len(tempPeers); i++ {
extPeers = append(extPeers, models.Node{
Address: tempPeers[i].Address,
Address6: tempPeers[i].Address6,
Endpoint: tempPeers[i].Endpoint,
PublicKey: tempPeers[i].PublicKey,
PersistentKeepalive: tempPeers[i].KeepAlive,
ListenPort: tempPeers[i].ListenPort,
LocalAddress: tempPeers[i].LocalAddress,
})
}
for _, extPeer := range extPeers {
pubkey, err := wgtypes.ParseKey(extPeer.PublicKey)
if err != nil {
return peers, err
}
if serverNode.PublicKey == extPeer.PublicKey {
continue
}
var allowedips = []net.IPNet{}
var peer wgtypes.PeerConfig
if extPeer.Address != "" {
newAddr := net.IPNet{
IP: net.ParseIP(extPeer.Address),
Mask: net.CIDRMask(32, 32),
}
if &newAddr != nil {
allowedips = append(allowedips, newAddr)
}
}
if extPeer.Address6 != "" {
newAddr6 := net.IPNet{
IP: net.ParseIP(extPeer.Address6),
Mask: net.CIDRMask(128, 128),
}
if &newAddr6 != nil {
allowedips = append(allowedips, newAddr6)
}
}
peer = wgtypes.PeerConfig{
PublicKey: pubkey,
ReplaceAllowedIPs: true,
AllowedIPs: allowedips,
}
peers = append(peers, peer)
allowedips = nil
}
tempPeers = nil
extPeers = nil
return peers, err
return update.Peers, false, []string{}, nil
}
// == Private ==

View file

@ -115,61 +115,6 @@ func RandomString(length int) string {
// == Private Methods ==
// getNetworkEgressAndNodes - returns two slices, #1 is all nodes in the network, #2 is the egress nodes in the network
func getNetworkEgressAndNodes(networkName string) ([]models.Node, []models.Node, error) {
var networkNodes, egressNetworkNodes []models.Node
collection, err := database.FetchRecords(database.NODES_TABLE_NAME)
if err != nil {
if database.IsEmptyRecord(err) {
return networkNodes, egressNetworkNodes, nil
}
logger.Log(2, err.Error())
return nil, nil, err
}
for _, value := range collection {
var node = models.Node{}
err := json.Unmarshal([]byte(value), &node)
if err != nil {
logger.Log(2, err.Error())
continue
}
if node.Network == networkName {
networkNodes = append(networkNodes, node)
if node.IsEgressGateway == "yes" {
egressNetworkNodes = append(egressNetworkNodes, node)
}
}
}
return networkNodes, egressNetworkNodes, nil
}
func setPeerInfo(node *models.Node) models.Node {
var peer models.Node
peer.RelayAddrs = node.RelayAddrs
peer.IsRelay = node.IsRelay
peer.IsServer = node.IsServer
peer.IsRelayed = node.IsRelayed
peer.PublicKey = node.PublicKey
peer.Endpoint = node.Endpoint
peer.Name = node.Name
peer.Network = node.Network
peer.LocalAddress = node.LocalAddress
peer.LocalListenPort = node.LocalListenPort
peer.ListenPort = node.ListenPort
peer.AllowedIPs = node.AllowedIPs
peer.UDPHolePunch = node.UDPHolePunch
peer.Address = node.Address
peer.Address6 = node.Address6
peer.IsHub = node.IsHub
peer.EgressGatewayRanges = node.EgressGatewayRanges
peer.IsEgressGateway = node.IsEgressGateway
peer.IngressGatewayRange = node.IngressGatewayRange
peer.IsIngressGateway = node.IsIngressGateway
peer.IsPending = node.IsPending
return peer
}
func setIPForwardingLinux() error {
out, err := ncutils.RunCmd("sysctl net.ipv4.ip_forward", true)
if err != nil {