package ncutils import ( "net" "strconv" "strings" "time" "github.com/gravitl/netmaker/logger" "golang.zx2c4.com/wireguard/wgctrl/wgtypes" ) func GetPeers(iface string) ([]wgtypes.Peer, error) { var peers []wgtypes.Peer output, err := RunCmd("wg show "+iface+" dump", true) if err != nil { return peers, err } for i, line := range strings.Split(strings.TrimSuffix(output, "\n"), "\n") { if i == 0 { continue } var allowedIPs []net.IPNet fields := strings.Fields(line) if len(fields) < 4 { logger.Log(0, "error parsing peer: "+line) continue } pubkeystring := fields[0] endpointstring := fields[2] allowedipstring := fields[3] var pkeepalivestring string if len(fields) > 7 { pkeepalivestring = fields[7] } // AllowedIPs = private IP + defined networks pubkey, err := wgtypes.ParseKey(pubkeystring) if err != nil { logger.Log(0, "error parsing peer key "+pubkeystring) continue } ipstrings := strings.Split(allowedipstring, ",") for _, ipstring := range ipstrings { var netip net.IP if netip = net.ParseIP(strings.Split(ipstring, "/")[0]); netip != nil { allowedIPs = append( allowedIPs, net.IPNet{ IP: netip, Mask: netip.DefaultMask(), }, ) } } if len(allowedIPs) == 0 { logger.Log(0, "error parsing peer "+pubkeystring+", no allowedips found") continue } var endpointarr []string var endpointip net.IP if endpointarr = strings.Split(endpointstring, ":"); len(endpointarr) != 2 { logger.Log(0, "error parsing peer "+pubkeystring+", could not parse endpoint: "+endpointstring) continue } if endpointip = net.ParseIP(endpointarr[0]); endpointip == nil { logger.Log(0, "error parsing peer "+pubkeystring+", could not parse endpoint: "+endpointarr[0]) continue } var port int if port, err = strconv.Atoi(endpointarr[1]); err != nil { logger.Log(0, "error parsing peer "+pubkeystring+", could not parse port: "+err.Error()) continue } var endpoint = net.UDPAddr{ IP: endpointip, Port: port, } var dur time.Duration if pkeepalivestring != "" { if dur, err = time.ParseDuration(pkeepalivestring + "s"); err != nil { logger.Log(0, "error parsing peer "+pubkeystring+", could not parse keepalive: "+err.Error()) } } peers = append(peers, wgtypes.Peer{ PublicKey: pubkey, Endpoint: &endpoint, AllowedIPs: allowedIPs, PersistentKeepaliveInterval: dur, }) } return peers, err }