mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-22 09:30:28 +00:00
Refactoring: move tuntap and icmpv6 into separate package
This commit is contained in:
parent
67c670ab4c
commit
0b494a8255
@ -19,6 +19,7 @@ import (
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"github.com/mitchellh/mapstructure"
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"github.com/yggdrasil-network/yggdrasil-go/src/config"
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"github.com/yggdrasil-network/yggdrasil-go/src/tuntap"
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"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
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)
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@ -27,6 +28,7 @@ type Core = yggdrasil.Core
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type node struct {
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core Core
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tun tuntap.TunAdapter
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}
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func readConfig(useconf *bool, useconffile *string, normaliseconf *bool) *nodeConfig {
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@ -247,6 +249,7 @@ func main() {
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// Now that we have a working configuration, we can now actually start
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// Yggdrasil. This will start the router, switch, DHT node, TCP and UDP
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// sockets, TUN/TAP adapter and multicast discovery port.
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n.core.SetRouterAdapter(&n.tun)
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if err := n.core.Start(cfg, logger); err != nil {
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logger.Errorln("An error occurred during startup")
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panic(err)
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@ -2,11 +2,36 @@ package config
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import (
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"encoding/hex"
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"sync"
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"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
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"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
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)
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// NodeState represents the active and previous configuration of the node and
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// protects it with a mutex
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type NodeState struct {
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Current NodeConfig
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Previous NodeConfig
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Mutex sync.RWMutex
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}
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// Get returns both the current and previous node configs
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func (s *NodeState) Get() (NodeConfig, NodeConfig) {
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s.Mutex.RLock()
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defer s.Mutex.RUnlock()
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return s.Current, s.Previous
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}
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// Replace the node configuration with new configuration
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func (s *NodeState) Replace(n NodeConfig) NodeConfig {
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s.Mutex.Lock()
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defer s.Mutex.Unlock()
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s.Previous = s.Current
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s.Current = n
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return s.Current
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}
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// NodeConfig defines all configuration values needed to run a signle yggdrasil node
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type NodeConfig struct {
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Peers []string `comment:"List of connection strings for outbound peer connections in URI format,\ne.g. tcp://a.b.c.d:e or socks://a.b.c.d:e/f.g.h.i:j. These connections\nwill obey the operating system routing table, therefore you should\nuse this section when you may connect via different interfaces."`
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@ -1,4 +1,4 @@
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package yggdrasil
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package tuntap
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// The ICMPv6 module implements functions to easily create ICMPv6
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// packets. These functions, when mixed with the built-in Go IPv6
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@ -25,8 +25,8 @@ type macAddress [6]byte
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const len_ETHER = 14
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type icmpv6 struct {
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tun *tunAdapter
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type ICMPv6 struct {
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tun *TunAdapter
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mylladdr net.IP
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mymac macAddress
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peermacs map[address.Address]neighbor
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@ -59,7 +59,7 @@ func ipv6Header_Marshal(h *ipv6.Header) ([]byte, error) {
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// Initialises the ICMPv6 module by assigning our link-local IPv6 address and
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// our MAC address. ICMPv6 messages will always appear to originate from these
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// addresses.
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func (i *icmpv6) init(t *tunAdapter) {
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func (i *ICMPv6) Init(t *TunAdapter) {
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i.tun = t
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i.peermacs = make(map[address.Address]neighbor)
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@ -69,23 +69,23 @@ func (i *icmpv6) init(t *tunAdapter) {
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i.mylladdr = net.IP{
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0xFE, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xFE}
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copy(i.mymac[:], i.tun.core.router.addr[:])
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copy(i.mylladdr[9:], i.tun.core.router.addr[1:])
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copy(i.mymac[:], i.tun.addr[:])
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copy(i.mylladdr[9:], i.tun.addr[1:])
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}
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// Parses an incoming ICMPv6 packet. The packet provided may be either an
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// ethernet frame containing an IP packet, or the IP packet alone. This is
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// determined by whether the TUN/TAP adapter is running in TUN (layer 3) or
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// TAP (layer 2) mode.
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func (i *icmpv6) parse_packet(datain []byte) {
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func (i *ICMPv6) ParsePacket(datain []byte) {
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var response []byte
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var err error
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// Parse the frame/packet
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if i.tun.iface.IsTAP() {
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response, err = i.parse_packet_tap(datain)
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if i.tun.IsTAP() {
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response, err = i.UnmarshalPacketL2(datain)
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} else {
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response, err = i.parse_packet_tun(datain, nil)
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response, err = i.UnmarshalPacket(datain, nil)
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}
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if err != nil {
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@ -93,22 +93,22 @@ func (i *icmpv6) parse_packet(datain []byte) {
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}
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// Write the packet to TUN/TAP
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i.tun.iface.Write(response)
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i.tun.Send <- response
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}
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// Unwraps the ethernet headers of an incoming ICMPv6 packet and hands off
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// the IP packet to the parse_packet_tun function for further processing.
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// the IP packet to the ParsePacket function for further processing.
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// A response buffer is also created for the response message, also complete
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// with ethernet headers.
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func (i *icmpv6) parse_packet_tap(datain []byte) ([]byte, error) {
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func (i *ICMPv6) UnmarshalPacketL2(datain []byte) ([]byte, error) {
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// Ignore non-IPv6 frames
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if binary.BigEndian.Uint16(datain[12:14]) != uint16(0x86DD) {
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return nil, nil
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}
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// Hand over to parse_packet_tun to interpret the IPv6 packet
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// Hand over to ParsePacket to interpret the IPv6 packet
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mac := datain[6:12]
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ipv6packet, err := i.parse_packet_tun(datain[len_ETHER:], &mac)
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ipv6packet, err := i.UnmarshalPacket(datain[len_ETHER:], &mac)
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if err != nil {
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return nil, err
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}
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@ -130,7 +130,7 @@ func (i *icmpv6) parse_packet_tap(datain []byte) ([]byte, error) {
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// sanity checks on the packet - i.e. is the packet an ICMPv6 packet, does the
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// ICMPv6 message match a known expected type. The relevant handler function
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// is then called and a response packet may be returned.
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func (i *icmpv6) parse_packet_tun(datain []byte, datamac *[]byte) ([]byte, error) {
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func (i *ICMPv6) UnmarshalPacket(datain []byte, datamac *[]byte) ([]byte, error) {
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// Parse the IPv6 packet headers
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ipv6Header, err := ipv6.ParseHeader(datain[:ipv6.HeaderLen])
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if err != nil {
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@ -156,13 +156,13 @@ func (i *icmpv6) parse_packet_tun(datain []byte, datamac *[]byte) ([]byte, error
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// Check for a supported message type
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switch icmpv6Header.Type {
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case ipv6.ICMPTypeNeighborSolicitation:
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if !i.tun.iface.IsTAP() {
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if !i.tun.IsTAP() {
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return nil, errors.New("Ignoring Neighbor Solicitation in TUN mode")
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}
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response, err := i.handle_ndp(datain[ipv6.HeaderLen:])
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response, err := i.HandleNDP(datain[ipv6.HeaderLen:])
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if err == nil {
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// Create our ICMPv6 response
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responsePacket, err := i.create_icmpv6_tun(
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responsePacket, err := CreateICMPv6(
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ipv6Header.Src, i.mylladdr,
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ipv6.ICMPTypeNeighborAdvertisement, 0,
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&icmp.DefaultMessageBody{Data: response})
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@ -176,7 +176,7 @@ func (i *icmpv6) parse_packet_tun(datain []byte, datamac *[]byte) ([]byte, error
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return nil, err
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}
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case ipv6.ICMPTypeNeighborAdvertisement:
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if !i.tun.iface.IsTAP() {
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if !i.tun.IsTAP() {
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return nil, errors.New("Ignoring Neighbor Advertisement in TUN mode")
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}
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if datamac != nil {
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@ -202,9 +202,9 @@ func (i *icmpv6) parse_packet_tun(datain []byte, datamac *[]byte) ([]byte, error
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// Creates an ICMPv6 packet based on the given icmp.MessageBody and other
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// parameters, complete with ethernet and IP headers, which can be written
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// directly to a TAP adapter.
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func (i *icmpv6) create_icmpv6_tap(dstmac macAddress, dst net.IP, src net.IP, mtype ipv6.ICMPType, mcode int, mbody icmp.MessageBody) ([]byte, error) {
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// Pass through to create_icmpv6_tun
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ipv6packet, err := i.create_icmpv6_tun(dst, src, mtype, mcode, mbody)
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func (i *ICMPv6) CreateICMPv6L2(dstmac macAddress, dst net.IP, src net.IP, mtype ipv6.ICMPType, mcode int, mbody icmp.MessageBody) ([]byte, error) {
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// Pass through to CreateICMPv6
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ipv6packet, err := CreateICMPv6(dst, src, mtype, mcode, mbody)
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if err != nil {
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return nil, err
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}
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@ -224,9 +224,9 @@ func (i *icmpv6) create_icmpv6_tap(dstmac macAddress, dst net.IP, src net.IP, mt
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// Creates an ICMPv6 packet based on the given icmp.MessageBody and other
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// parameters, complete with IP headers only, which can be written directly to
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// a TUN adapter, or called directly by the create_icmpv6_tap function when
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// a TUN adapter, or called directly by the CreateICMPv6L2 function when
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// generating a message for TAP adapters.
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func (i *icmpv6) create_icmpv6_tun(dst net.IP, src net.IP, mtype ipv6.ICMPType, mcode int, mbody icmp.MessageBody) ([]byte, error) {
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func CreateICMPv6(dst net.IP, src net.IP, mtype ipv6.ICMPType, mcode int, mbody icmp.MessageBody) ([]byte, error) {
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// Create the ICMPv6 message
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icmpMessage := icmp.Message{
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Type: mtype,
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@ -265,7 +265,7 @@ func (i *icmpv6) create_icmpv6_tun(dst net.IP, src net.IP, mtype ipv6.ICMPType,
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return responsePacket, nil
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}
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func (i *icmpv6) create_ndp_tap(dst address.Address) ([]byte, error) {
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func (i *ICMPv6) CreateNDPL2(dst address.Address) ([]byte, error) {
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// Create the ND payload
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var payload [28]byte
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copy(payload[:4], []byte{0x00, 0x00, 0x00, 0x00})
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@ -287,7 +287,7 @@ func (i *icmpv6) create_ndp_tap(dst address.Address) ([]byte, error) {
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copy(dstmac[2:6], dstaddr[12:16])
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// Create the ND request
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requestPacket, err := i.create_icmpv6_tap(
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requestPacket, err := i.CreateICMPv6L2(
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dstmac, dstaddr[:], i.mylladdr,
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ipv6.ICMPTypeNeighborSolicitation, 0,
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&icmp.DefaultMessageBody{Data: payload[:]})
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@ -305,7 +305,7 @@ func (i *icmpv6) create_ndp_tap(dst address.Address) ([]byte, error) {
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// when the host operating system generates an NDP request for any address in
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// the fd00::/8 range, so that the operating system knows to route that traffic
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// to the Yggdrasil TAP adapter.
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func (i *icmpv6) handle_ndp(in []byte) ([]byte, error) {
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func (i *ICMPv6) HandleNDP(in []byte) ([]byte, error) {
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// Ignore NDP requests for anything outside of fd00::/8
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var source address.Address
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copy(source[:], in[8:])
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@ -1,4 +1,4 @@
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package yggdrasil
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package tuntap
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// This manages the tun driver to send/recv packets to/from applications
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@ -10,21 +10,29 @@ import (
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"sync"
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"time"
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"github.com/gologme/log"
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"github.com/songgao/packets/ethernet"
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"github.com/yggdrasil-network/water"
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"github.com/yggdrasil-network/yggdrasil-go/src/address"
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"github.com/yggdrasil-network/yggdrasil-go/src/config"
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"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
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"github.com/yggdrasil-network/yggdrasil-go/src/util"
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"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
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)
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const tun_IPv6_HEADER_LENGTH = 40
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const tun_ETHER_HEADER_LENGTH = 14
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// Represents a running TUN/TAP interface.
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type tunAdapter struct {
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Adapter
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icmpv6 icmpv6
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type TunAdapter struct {
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yggdrasil.Adapter
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addr address.Address
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subnet address.Subnet
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log *log.Logger
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config *config.NodeState
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icmpv6 ICMPv6
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mtu int
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iface *water.Interface
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mutex sync.RWMutex // Protects the below
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@ -40,20 +48,37 @@ func getSupportedMTU(mtu int) int {
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return mtu
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}
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// Get the adapter name
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func (tun *TunAdapter) Name() string {
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return tun.iface.Name()
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}
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// Get the adapter MTU
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func (tun *TunAdapter) MTU() int {
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return getSupportedMTU(tun.mtu)
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}
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// Get the adapter mode
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func (tun *TunAdapter) IsTAP() bool {
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return tun.iface.IsTAP()
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}
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// Initialises the TUN/TAP adapter.
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func (tun *tunAdapter) init(core *Core, send chan<- []byte, recv <-chan []byte) {
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tun.Adapter.init(core, send, recv)
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tun.icmpv6.init(tun)
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func (tun *TunAdapter) Init(config *config.NodeState, log *log.Logger, send chan<- []byte, recv <-chan []byte) {
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tun.config = config
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tun.log = log
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tun.Adapter.Init(config, log, send, recv)
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tun.icmpv6.Init(tun)
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go func() {
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for {
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e := <-tun.reconfigure
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tun.core.configMutex.RLock()
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updated := tun.core.config.IfName != tun.core.configOld.IfName ||
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tun.core.config.IfTAPMode != tun.core.configOld.IfTAPMode ||
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tun.core.config.IfMTU != tun.core.configOld.IfMTU
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tun.core.configMutex.RUnlock()
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e := <-tun.Reconfigure
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tun.config.Mutex.RLock()
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updated := tun.config.Current.IfName != tun.config.Previous.IfName ||
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tun.config.Current.IfTAPMode != tun.config.Previous.IfTAPMode ||
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tun.config.Current.IfMTU != tun.config.Previous.IfMTU
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tun.config.Mutex.RUnlock()
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if updated {
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tun.core.log.Warnln("Reconfiguring TUN/TAP is not supported yet")
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tun.log.Warnln("Reconfiguring TUN/TAP is not supported yet")
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e <- nil
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} else {
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e <- nil
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@ -64,13 +89,18 @@ func (tun *tunAdapter) init(core *Core, send chan<- []byte, recv <-chan []byte)
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// Starts the setup process for the TUN/TAP adapter, and if successful, starts
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// the read/write goroutines to handle packets on that interface.
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func (tun *tunAdapter) start() error {
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tun.core.configMutex.RLock()
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ifname := tun.core.config.IfName
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iftapmode := tun.core.config.IfTAPMode
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addr := fmt.Sprintf("%s/%d", net.IP(tun.core.router.addr[:]).String(), 8*len(address.GetPrefix())-1)
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mtu := tun.core.config.IfMTU
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tun.core.configMutex.RUnlock()
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func (tun *TunAdapter) Start(a address.Address, s address.Subnet) error {
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tun.addr = a
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tun.subnet = s
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if tun.config == nil {
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return errors.New("No configuration available to TUN/TAP")
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}
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tun.config.Mutex.RLock()
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ifname := tun.config.Current.IfName
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iftapmode := tun.config.Current.IfTAPMode
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addr := fmt.Sprintf("%s/%d", net.IP(tun.addr[:]).String(), 8*len(address.GetPrefix())-1)
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mtu := tun.config.Current.IfMTU
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tun.config.Mutex.RUnlock()
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if ifname != "none" {
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if err := tun.setup(ifname, iftapmode, addr, mtu); err != nil {
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return err
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@ -82,15 +112,15 @@ func (tun *tunAdapter) start() error {
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tun.mutex.Lock()
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tun.isOpen = true
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tun.mutex.Unlock()
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go func() { tun.core.log.Errorln("WARNING: tun.read() exited with error:", tun.read()) }()
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go func() { tun.core.log.Errorln("WARNING: tun.write() exited with error:", tun.write()) }()
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go func() { tun.log.Errorln("WARNING: tun.read() exited with error:", tun.Read()) }()
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go func() { tun.log.Errorln("WARNING: tun.write() exited with error:", tun.Write()) }()
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if iftapmode {
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go func() {
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for {
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if _, ok := tun.icmpv6.peermacs[tun.core.router.addr]; ok {
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if _, ok := tun.icmpv6.peermacs[tun.addr]; ok {
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break
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}
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request, err := tun.icmpv6.create_ndp_tap(tun.core.router.addr)
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request, err := tun.icmpv6.CreateNDPL2(tun.addr)
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if err != nil {
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panic(err)
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}
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@ -107,9 +137,9 @@ func (tun *tunAdapter) start() error {
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// Writes a packet to the TUN/TAP adapter. If the adapter is running in TAP
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// mode then additional ethernet encapsulation is added for the benefit of the
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// host operating system.
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func (tun *tunAdapter) write() error {
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func (tun *TunAdapter) Write() error {
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for {
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data := <-tun.recv
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data := <-tun.Recv
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if tun.iface == nil {
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continue
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}
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@ -132,7 +162,7 @@ func (tun *tunAdapter) write() error {
|
||||
neigh, known := tun.icmpv6.peermacs[destAddr]
|
||||
known = known && (time.Since(neigh.lastsolicitation).Seconds() < 30)
|
||||
if !known {
|
||||
request, err := tun.icmpv6.create_ndp_tap(destAddr)
|
||||
request, err := tun.icmpv6.CreateNDPL2(destAddr)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
@ -147,21 +177,21 @@ func (tun *tunAdapter) write() error {
|
||||
var peermac macAddress
|
||||
var peerknown bool
|
||||
if data[0]&0xf0 == 0x40 {
|
||||
destAddr = tun.core.router.addr
|
||||
destAddr = tun.addr
|
||||
} else if data[0]&0xf0 == 0x60 {
|
||||
if !bytes.Equal(tun.core.router.addr[:16], destAddr[:16]) && !bytes.Equal(tun.core.router.subnet[:8], destAddr[:8]) {
|
||||
destAddr = tun.core.router.addr
|
||||
if !bytes.Equal(tun.addr[:16], destAddr[:16]) && !bytes.Equal(tun.subnet[:8], destAddr[:8]) {
|
||||
destAddr = tun.addr
|
||||
}
|
||||
}
|
||||
if neighbor, ok := tun.icmpv6.peermacs[destAddr]; ok && neighbor.learned {
|
||||
peermac = neighbor.mac
|
||||
peerknown = true
|
||||
} else if neighbor, ok := tun.icmpv6.peermacs[tun.core.router.addr]; ok && neighbor.learned {
|
||||
} else if neighbor, ok := tun.icmpv6.peermacs[tun.addr]; ok && neighbor.learned {
|
||||
peermac = neighbor.mac
|
||||
peerknown = true
|
||||
sendndp(destAddr)
|
||||
} else {
|
||||
sendndp(tun.core.router.addr)
|
||||
sendndp(tun.addr)
|
||||
}
|
||||
if peerknown {
|
||||
var proto ethernet.Ethertype
|
||||
@ -210,7 +240,7 @@ func (tun *tunAdapter) write() error {
|
||||
// is running in TAP mode then the ethernet headers will automatically be
|
||||
// processed and stripped if necessary. If an ICMPv6 packet is found, then
|
||||
// the relevant helper functions in icmpv6.go are called.
|
||||
func (tun *tunAdapter) read() error {
|
||||
func (tun *TunAdapter) Read() error {
|
||||
mtu := tun.mtu
|
||||
if tun.iface.IsTAP() {
|
||||
mtu += tun_ETHER_HEADER_LENGTH
|
||||
@ -244,18 +274,18 @@ func (tun *tunAdapter) read() error {
|
||||
// Found an ICMPv6 packet
|
||||
b := make([]byte, n)
|
||||
copy(b, buf)
|
||||
go tun.icmpv6.parse_packet(b)
|
||||
go tun.icmpv6.ParsePacket(b)
|
||||
}
|
||||
}
|
||||
packet := append(util.GetBytes(), buf[o:n]...)
|
||||
tun.send <- packet
|
||||
tun.Send <- packet
|
||||
}
|
||||
}
|
||||
|
||||
// Closes the TUN/TAP adapter. This is only usually called when the Yggdrasil
|
||||
// process stops. Typically this operation will happen quickly, but on macOS
|
||||
// it can block until a read operation is completed.
|
||||
func (tun *tunAdapter) close() error {
|
||||
func (tun *TunAdapter) Close() error {
|
||||
tun.mutex.Lock()
|
||||
tun.isOpen = false
|
||||
tun.mutex.Unlock()
|
@ -1,6 +1,6 @@
|
||||
// +build openbsd freebsd netbsd
|
||||
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
@ -77,7 +77,7 @@ type in6_ifreq_lifetime struct {
|
||||
// a system socket and making syscalls to the kernel. This is not refined though
|
||||
// and often doesn't work (if at all), therefore if a call fails, it resorts
|
||||
// to calling "ifconfig" instead.
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if ifname[:4] == "auto" {
|
||||
ifname = "/dev/tap0"
|
||||
@ -103,7 +103,7 @@ func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int
|
||||
return tun.setupAddress(addr)
|
||||
}
|
||||
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
var sfd int
|
||||
var err error
|
||||
|
@ -1,6 +1,6 @@
|
||||
// +build !mobile
|
||||
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
// The darwin platform specific tun parts
|
||||
|
||||
@ -16,9 +16,9 @@ import (
|
||||
)
|
||||
|
||||
// Configures the "utun" adapter with the correct IPv6 address and MTU.
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
if iftapmode {
|
||||
tun.core.log.Warnln("TAP mode is not supported on this platform, defaulting to TUN")
|
||||
tun.log.Warnln("TAP mode is not supported on this platform, defaulting to TUN")
|
||||
}
|
||||
config := water.Config{DeviceType: water.TUN}
|
||||
iface, err := water.New(config)
|
||||
@ -64,12 +64,12 @@ type ifreq struct {
|
||||
|
||||
// Sets the IPv6 address of the utun adapter. On Darwin/macOS this is done using
|
||||
// a system socket and making direct syscalls to the kernel.
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
var fd int
|
||||
var err error
|
||||
|
||||
if fd, err = unix.Socket(unix.AF_INET6, unix.SOCK_DGRAM, 0); err != nil {
|
||||
tun.core.log.Printf("Create AF_SYSTEM socket failed: %v.", err)
|
||||
tun.log.Printf("Create AF_SYSTEM socket failed: %v.", err)
|
||||
return err
|
||||
}
|
||||
|
||||
@ -98,19 +98,19 @@ func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
copy(ir.ifr_name[:], tun.iface.Name())
|
||||
ir.ifru_mtu = uint32(tun.mtu)
|
||||
|
||||
tun.core.log.Infof("Interface name: %s", ar.ifra_name)
|
||||
tun.core.log.Infof("Interface IPv6: %s", addr)
|
||||
tun.core.log.Infof("Interface MTU: %d", ir.ifru_mtu)
|
||||
tun.log.Infof("Interface name: %s", ar.ifra_name)
|
||||
tun.log.Infof("Interface IPv6: %s", addr)
|
||||
tun.log.Infof("Interface MTU: %d", ir.ifru_mtu)
|
||||
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(darwin_SIOCAIFADDR_IN6), uintptr(unsafe.Pointer(&ar))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Errorf("Error in darwin_SIOCAIFADDR_IN6: %v", errno)
|
||||
tun.log.Errorf("Error in darwin_SIOCAIFADDR_IN6: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
||||
if _, _, errno := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(unix.SIOCSIFMTU), uintptr(unsafe.Pointer(&ir))); errno != 0 {
|
||||
err = errno
|
||||
tun.core.log.Errorf("Error in SIOCSIFMTU: %v", errno)
|
||||
tun.log.Errorf("Error in SIOCSIFMTU: %v", errno)
|
||||
return err
|
||||
}
|
||||
|
@ -1,19 +1,19 @@
|
||||
// +build mobile
|
||||
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
// This is to catch unsupported platforms
|
||||
// If your platform supports tun devices, you could try configuring it manually
|
||||
|
||||
// Creates the TUN/TAP adapter, if supported by the Water library. Note that
|
||||
// no guarantees are made at this point on an unsupported platform.
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
tun.mtu = getSupportedMTU(mtu)
|
||||
return tun.setupAddress(addr)
|
||||
}
|
||||
|
||||
// We don't know how to set the IPv6 address on an unknown platform, therefore
|
||||
// write about it to stdout and don't try to do anything further.
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
return nil
|
||||
}
|
@ -1,6 +1,6 @@
|
||||
// +build !mobile
|
||||
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
// The linux platform specific tun parts
|
||||
|
||||
@ -15,7 +15,7 @@ import (
|
||||
)
|
||||
|
||||
// Configures the TAP adapter with the correct IPv6 address and MTU.
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if iftapmode {
|
||||
config = water.Config{DeviceType: water.TAP}
|
||||
@ -50,7 +50,7 @@ func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int
|
||||
// is used to do this, so there is not a hard requirement on "ip" or "ifconfig"
|
||||
// to exist on the system, but this will fail if Netlink is not present in the
|
||||
// kernel (it nearly always is).
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
// Set address
|
||||
var netIF *net.Interface
|
||||
ifces, err := net.Interfaces()
|
@ -1,6 +1,6 @@
|
||||
// +build !linux,!darwin,!windows,!openbsd,!freebsd,!netbsd,!mobile
|
||||
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
import water "github.com/yggdrasil-network/water"
|
||||
|
||||
@ -9,7 +9,7 @@ import water "github.com/yggdrasil-network/water"
|
||||
|
||||
// Creates the TUN/TAP adapter, if supported by the Water library. Note that
|
||||
// no guarantees are made at this point on an unsupported platform.
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
var config water.Config
|
||||
if iftapmode {
|
||||
config = water.Config{DeviceType: water.TAP}
|
||||
@ -27,7 +27,7 @@ func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int
|
||||
|
||||
// We don't know how to set the IPv6 address on an unknown platform, therefore
|
||||
// write about it to stdout and don't try to do anything further.
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
tun.core.log.Warnln("Platform not supported, you must set the address of", tun.iface.Name(), "to", addr)
|
||||
return nil
|
||||
}
|
@ -1,4 +1,4 @@
|
||||
package yggdrasil
|
||||
package tuntap
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
@ -13,7 +13,7 @@ import (
|
||||
// Configures the TAP adapter with the correct IPv6 address and MTU. On Windows
|
||||
// we don't make use of a direct operating system API to do this - we instead
|
||||
// delegate the hard work to "netsh".
|
||||
func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
|
||||
if !iftapmode {
|
||||
tun.core.log.Warnln("TUN mode is not supported on this platform, defaulting to TAP")
|
||||
}
|
||||
@ -65,7 +65,7 @@ func (tun *tunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int
|
||||
}
|
||||
|
||||
// Sets the MTU of the TAP adapter.
|
||||
func (tun *tunAdapter) setupMTU(mtu int) error {
|
||||
func (tun *TunAdapter) setupMTU(mtu int) error {
|
||||
// Set MTU
|
||||
cmd := exec.Command("netsh", "interface", "ipv6", "set", "subinterface",
|
||||
fmt.Sprintf("interface=%s", tun.iface.Name()),
|
||||
@ -82,7 +82,7 @@ func (tun *tunAdapter) setupMTU(mtu int) error {
|
||||
}
|
||||
|
||||
// Sets the IPv6 address of the TAP adapter.
|
||||
func (tun *tunAdapter) setupAddress(addr string) error {
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
// Set address
|
||||
cmd := exec.Command("netsh", "interface", "ipv6", "add", "address",
|
||||
fmt.Sprintf("interface=%s", tun.iface.Name()),
|
@ -1,18 +1,36 @@
|
||||
package yggdrasil
|
||||
|
||||
import (
|
||||
"github.com/gologme/log"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/config"
|
||||
)
|
||||
|
||||
// Defines the minimum required struct members for an adapter type (this is
|
||||
// now the base type for tunAdapter in tun.go)
|
||||
// now the base type for TunAdapter in tun.go)
|
||||
type Adapter struct {
|
||||
core *Core
|
||||
send chan<- []byte
|
||||
recv <-chan []byte
|
||||
reconfigure chan chan error
|
||||
adapterImplementation
|
||||
Core *Core
|
||||
Send chan<- []byte
|
||||
Recv <-chan []byte
|
||||
Reconfigure chan chan error
|
||||
}
|
||||
|
||||
// Defines the minimum required functions for an adapter type
|
||||
type adapterImplementation interface {
|
||||
Init(*config.NodeState, *log.Logger, chan<- []byte, <-chan []byte)
|
||||
Name() string
|
||||
MTU() int
|
||||
IsTAP() bool
|
||||
Start(address.Address, address.Subnet) error
|
||||
Read() error
|
||||
Write() error
|
||||
Close() error
|
||||
}
|
||||
|
||||
// Initialises the adapter.
|
||||
func (adapter *Adapter) init(core *Core, send chan<- []byte, recv <-chan []byte) {
|
||||
adapter.core = core
|
||||
adapter.send = send
|
||||
adapter.recv = recv
|
||||
adapter.reconfigure = make(chan chan error, 1)
|
||||
func (adapter Adapter) Init(config *config.NodeState, log *log.Logger, send chan<- []byte, recv <-chan []byte) {
|
||||
adapter.Send = send
|
||||
adapter.Recv = recv
|
||||
adapter.Reconfigure = make(chan chan error, 1)
|
||||
}
|
||||
|
@ -16,7 +16,6 @@ import (
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
|
||||
)
|
||||
|
||||
// TODO: Add authentication
|
||||
@ -58,19 +57,17 @@ func (a *admin) init(c *Core) {
|
||||
go func() {
|
||||
for {
|
||||
e := <-a.reconfigure
|
||||
a.core.configMutex.RLock()
|
||||
if a.core.config.AdminListen != a.core.configOld.AdminListen {
|
||||
a.listenaddr = a.core.config.AdminListen
|
||||
current, previous := a.core.config.Get()
|
||||
if current.AdminListen != previous.AdminListen {
|
||||
a.listenaddr = current.AdminListen
|
||||
a.close()
|
||||
a.start()
|
||||
}
|
||||
a.core.configMutex.RUnlock()
|
||||
e <- nil
|
||||
}
|
||||
}()
|
||||
a.core.configMutex.RLock()
|
||||
a.listenaddr = a.core.config.AdminListen
|
||||
a.core.configMutex.RUnlock()
|
||||
current, _ := a.core.config.Get()
|
||||
a.listenaddr = current.AdminListen
|
||||
a.addHandler("list", []string{}, func(in admin_info) (admin_info, error) {
|
||||
handlers := make(map[string]interface{})
|
||||
for _, handler := range a.handlers {
|
||||
@ -171,47 +168,47 @@ func (a *admin) init(c *Core) {
|
||||
}, errors.New("Failed to remove peer")
|
||||
}
|
||||
})
|
||||
a.addHandler("getTunTap", []string{}, func(in admin_info) (r admin_info, e error) {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
r = admin_info{"none": admin_info{}}
|
||||
e = nil
|
||||
}
|
||||
}()
|
||||
/* a.addHandler("getTunTap", []string{}, func(in admin_info) (r admin_info, e error) {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
r = admin_info{"none": admin_info{}}
|
||||
e = nil
|
||||
}
|
||||
}()
|
||||
|
||||
return admin_info{
|
||||
a.core.router.tun.iface.Name(): admin_info{
|
||||
"tap_mode": a.core.router.tun.iface.IsTAP(),
|
||||
"mtu": a.core.router.tun.mtu,
|
||||
},
|
||||
}, nil
|
||||
})
|
||||
a.addHandler("setTunTap", []string{"name", "[tap_mode]", "[mtu]"}, func(in admin_info) (admin_info, error) {
|
||||
// Set sane defaults
|
||||
iftapmode := defaults.GetDefaults().DefaultIfTAPMode
|
||||
ifmtu := defaults.GetDefaults().DefaultIfMTU
|
||||
// Has TAP mode been specified?
|
||||
if tap, ok := in["tap_mode"]; ok {
|
||||
iftapmode = tap.(bool)
|
||||
}
|
||||
// Check we have enough params for MTU
|
||||
if mtu, ok := in["mtu"]; ok {
|
||||
if mtu.(float64) >= 1280 && ifmtu <= defaults.GetDefaults().MaximumIfMTU {
|
||||
ifmtu = int(in["mtu"].(float64))
|
||||
}
|
||||
}
|
||||
// Start the TUN adapter
|
||||
if err := a.startTunWithMTU(in["name"].(string), iftapmode, ifmtu); err != nil {
|
||||
return admin_info{}, errors.New("Failed to configure adapter")
|
||||
} else {
|
||||
return admin_info{
|
||||
a.core.router.tun.iface.Name(): admin_info{
|
||||
"tap_mode": a.core.router.tun.iface.IsTAP(),
|
||||
"mtu": ifmtu,
|
||||
"mtu": a.core.router.tun.mtu,
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
})
|
||||
})
|
||||
a.addHandler("setTunTap", []string{"name", "[tap_mode]", "[mtu]"}, func(in admin_info) (admin_info, error) {
|
||||
// Set sane defaults
|
||||
iftapmode := defaults.GetDefaults().DefaultIfTAPMode
|
||||
ifmtu := defaults.GetDefaults().DefaultIfMTU
|
||||
// Has TAP mode been specified?
|
||||
if tap, ok := in["tap_mode"]; ok {
|
||||
iftapmode = tap.(bool)
|
||||
}
|
||||
// Check we have enough params for MTU
|
||||
if mtu, ok := in["mtu"]; ok {
|
||||
if mtu.(float64) >= 1280 && ifmtu <= defaults.GetDefaults().MaximumIfMTU {
|
||||
ifmtu = int(in["mtu"].(float64))
|
||||
}
|
||||
}
|
||||
// Start the TUN adapter
|
||||
if err := a.startTunWithMTU(in["name"].(string), iftapmode, ifmtu); err != nil {
|
||||
return admin_info{}, errors.New("Failed to configure adapter")
|
||||
} else {
|
||||
return admin_info{
|
||||
a.core.router.tun.iface.Name(): admin_info{
|
||||
"tap_mode": a.core.router.tun.iface.IsTAP(),
|
||||
"mtu": ifmtu,
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
})*/
|
||||
a.addHandler("getMulticastInterfaces", []string{}, func(in admin_info) (admin_info, error) {
|
||||
var intfs []string
|
||||
for _, v := range a.core.multicast.interfaces() {
|
||||
@ -609,6 +606,7 @@ func (a *admin) removePeer(p string) error {
|
||||
}
|
||||
|
||||
// startTunWithMTU creates the tun/tap device, sets its address, and sets the MTU to the provided value.
|
||||
/*
|
||||
func (a *admin) startTunWithMTU(ifname string, iftapmode bool, ifmtu int) error {
|
||||
// Close the TUN first if open
|
||||
_ = a.core.router.tun.close()
|
||||
@ -636,6 +634,7 @@ func (a *admin) startTunWithMTU(ifname string, iftapmode bool, ifmtu int) error
|
||||
go a.core.router.tun.write()
|
||||
return nil
|
||||
}
|
||||
*/
|
||||
|
||||
// getData_getSelf returns the self node's info for admin responses.
|
||||
func (a *admin) getData_getSelf() *admin_nodeInfo {
|
||||
|
@ -55,25 +55,24 @@ func (c *cryptokey) init(core *Core) {
|
||||
// Configure the CKR routes - this must only ever be called from the router
|
||||
// goroutine, e.g. through router.doAdmin
|
||||
func (c *cryptokey) configure() error {
|
||||
c.core.configMutex.RLock()
|
||||
defer c.core.configMutex.RUnlock()
|
||||
current, _ := c.core.config.Get()
|
||||
|
||||
// Set enabled/disabled state
|
||||
c.setEnabled(c.core.config.TunnelRouting.Enable)
|
||||
c.setEnabled(current.TunnelRouting.Enable)
|
||||
|
||||
// Clear out existing routes
|
||||
c.ipv6routes = make([]cryptokey_route, 0)
|
||||
c.ipv4routes = make([]cryptokey_route, 0)
|
||||
|
||||
// Add IPv6 routes
|
||||
for ipv6, pubkey := range c.core.config.TunnelRouting.IPv6Destinations {
|
||||
for ipv6, pubkey := range current.TunnelRouting.IPv6Destinations {
|
||||
if err := c.addRoute(ipv6, pubkey); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Add IPv4 routes
|
||||
for ipv4, pubkey := range c.core.config.TunnelRouting.IPv4Destinations {
|
||||
for ipv4, pubkey := range current.TunnelRouting.IPv4Destinations {
|
||||
if err := c.addRoute(ipv4, pubkey); err != nil {
|
||||
return err
|
||||
}
|
||||
@ -85,7 +84,7 @@ func (c *cryptokey) configure() error {
|
||||
|
||||
// Add IPv6 sources
|
||||
c.ipv6sources = make([]net.IPNet, 0)
|
||||
for _, source := range c.core.config.TunnelRouting.IPv6Sources {
|
||||
for _, source := range current.TunnelRouting.IPv6Sources {
|
||||
if err := c.addSourceSubnet(source); err != nil {
|
||||
return err
|
||||
}
|
||||
@ -93,7 +92,7 @@ func (c *cryptokey) configure() error {
|
||||
|
||||
// Add IPv4 sources
|
||||
c.ipv4sources = make([]net.IPNet, 0)
|
||||
for _, source := range c.core.config.TunnelRouting.IPv4Sources {
|
||||
for _, source := range current.TunnelRouting.IPv4Sources {
|
||||
if err := c.addSourceSubnet(source); err != nil {
|
||||
return err
|
||||
}
|
||||
|
@ -4,7 +4,6 @@ import (
|
||||
"encoding/hex"
|
||||
"io/ioutil"
|
||||
"net"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/gologme/log"
|
||||
@ -29,9 +28,7 @@ type Core struct {
|
||||
// This is the main data structure that holds everything else for a node
|
||||
// We're going to keep our own copy of the provided config - that way we can
|
||||
// guarantee that it will be covered by the mutex
|
||||
config config.NodeConfig // Active config
|
||||
configOld config.NodeConfig // Previous config
|
||||
configMutex sync.RWMutex // Protects both config and configOld
|
||||
config config.NodeState // Config
|
||||
boxPub crypto.BoxPubKey
|
||||
boxPriv crypto.BoxPrivKey
|
||||
sigPub crypto.SigPubKey
|
||||
@ -57,19 +54,21 @@ func (c *Core) init() error {
|
||||
c.log = log.New(ioutil.Discard, "", 0)
|
||||
}
|
||||
|
||||
boxPubHex, err := hex.DecodeString(c.config.EncryptionPublicKey)
|
||||
current, _ := c.config.Get()
|
||||
|
||||
boxPubHex, err := hex.DecodeString(current.EncryptionPublicKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
boxPrivHex, err := hex.DecodeString(c.config.EncryptionPrivateKey)
|
||||
boxPrivHex, err := hex.DecodeString(current.EncryptionPrivateKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
sigPubHex, err := hex.DecodeString(c.config.SigningPublicKey)
|
||||
sigPubHex, err := hex.DecodeString(current.SigningPublicKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
sigPrivHex, err := hex.DecodeString(c.config.SigningPrivateKey)
|
||||
sigPrivHex, err := hex.DecodeString(current.SigningPrivateKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -97,19 +96,16 @@ func (c *Core) init() error {
|
||||
func (c *Core) addPeerLoop() {
|
||||
for {
|
||||
// Get the peers from the config - these could change!
|
||||
c.configMutex.RLock()
|
||||
peers := c.config.Peers
|
||||
interfacepeers := c.config.InterfacePeers
|
||||
c.configMutex.RUnlock()
|
||||
current, _ := c.config.Get()
|
||||
|
||||
// Add peers from the Peers section
|
||||
for _, peer := range peers {
|
||||
for _, peer := range current.Peers {
|
||||
c.AddPeer(peer, "")
|
||||
time.Sleep(time.Second)
|
||||
}
|
||||
|
||||
// Add peers from the InterfacePeers section
|
||||
for intf, intfpeers := range interfacepeers {
|
||||
for intf, intfpeers := range current.InterfacePeers {
|
||||
for _, peer := range intfpeers {
|
||||
c.AddPeer(peer, intf)
|
||||
time.Sleep(time.Second)
|
||||
@ -126,10 +122,7 @@ func (c *Core) addPeerLoop() {
|
||||
func (c *Core) UpdateConfig(config *config.NodeConfig) {
|
||||
c.log.Infoln("Reloading configuration...")
|
||||
|
||||
c.configMutex.Lock()
|
||||
c.configOld = c.config
|
||||
c.config = *config
|
||||
c.configMutex.Unlock()
|
||||
c.config.Replace(*config)
|
||||
|
||||
errors := 0
|
||||
|
||||
@ -140,7 +133,7 @@ func (c *Core) UpdateConfig(config *config.NodeConfig) {
|
||||
c.sessions.reconfigure,
|
||||
c.peers.reconfigure,
|
||||
c.router.reconfigure,
|
||||
c.router.tun.reconfigure,
|
||||
//c.router.tun.Reconfigure,
|
||||
c.router.cryptokey.reconfigure,
|
||||
c.switchTable.reconfigure,
|
||||
c.link.reconfigure,
|
||||
@ -181,13 +174,23 @@ func GetBuildVersion() string {
|
||||
return buildVersion
|
||||
}
|
||||
|
||||
// Starts up Yggdrasil using the provided NodeConfig, and outputs debug logging
|
||||
// Set the router adapter
|
||||
func (c *Core) SetRouterAdapter(adapter adapterImplementation) {
|
||||
c.router.tun = adapter
|
||||
}
|
||||
|
||||
// Starts up Yggdrasil using the provided NodeState, and outputs debug logging
|
||||
// through the provided log.Logger. The started stack will include TCP and UDP
|
||||
// sockets, a multicast discovery socket, an admin socket, router, switch and
|
||||
// DHT node.
|
||||
func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
|
||||
c.log = log
|
||||
|
||||
c.config = config.NodeState{
|
||||
Current: *nc,
|
||||
Previous: *nc,
|
||||
}
|
||||
|
||||
if name := GetBuildName(); name != "unknown" {
|
||||
c.log.Infoln("Build name:", name)
|
||||
}
|
||||
@ -197,11 +200,6 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
|
||||
|
||||
c.log.Infoln("Starting up...")
|
||||
|
||||
c.configMutex.Lock()
|
||||
c.config = *nc
|
||||
c.configOld = c.config
|
||||
c.configMutex.Unlock()
|
||||
|
||||
c.init()
|
||||
|
||||
if err := c.link.init(c); err != nil {
|
||||
@ -209,9 +207,11 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
|
||||
return err
|
||||
}
|
||||
|
||||
if nc.SwitchOptions.MaxTotalQueueSize >= SwitchQueueTotalMinSize {
|
||||
c.switchTable.queueTotalMaxSize = nc.SwitchOptions.MaxTotalQueueSize
|
||||
c.config.Mutex.RLock()
|
||||
if c.config.Current.SwitchOptions.MaxTotalQueueSize >= SwitchQueueTotalMinSize {
|
||||
c.switchTable.queueTotalMaxSize = c.config.Current.SwitchOptions.MaxTotalQueueSize
|
||||
}
|
||||
c.config.Mutex.RUnlock()
|
||||
|
||||
if err := c.switchTable.start(); err != nil {
|
||||
c.log.Errorln("Failed to start switch")
|
||||
@ -233,7 +233,7 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := c.router.tun.start(); err != nil {
|
||||
if err := c.router.tun.Start(c.router.addr, c.router.subnet); err != nil {
|
||||
c.log.Errorln("Failed to start TUN/TAP")
|
||||
return err
|
||||
}
|
||||
@ -247,7 +247,7 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) error {
|
||||
// Stops the Yggdrasil node.
|
||||
func (c *Core) Stop() {
|
||||
c.log.Infoln("Stopping...")
|
||||
c.router.tun.close()
|
||||
c.router.tun.Close()
|
||||
c.admin.close()
|
||||
}
|
||||
|
||||
@ -343,10 +343,12 @@ func (c *Core) GetTUNDefaultIfTAPMode() bool {
|
||||
|
||||
// Gets the current TUN/TAP interface name.
|
||||
func (c *Core) GetTUNIfName() string {
|
||||
return c.router.tun.iface.Name()
|
||||
//return c.router.tun.iface.Name()
|
||||
return c.router.tun.Name()
|
||||
}
|
||||
|
||||
// Gets the current TUN/TAP interface MTU.
|
||||
func (c *Core) GetTUNIfMTU() int {
|
||||
return c.router.tun.mtu
|
||||
//return c.router.tun.mtu
|
||||
return c.router.tun.MTU()
|
||||
}
|
||||
|
@ -23,9 +23,8 @@ func (m *multicast) init(core *Core) {
|
||||
m.core = core
|
||||
m.reconfigure = make(chan chan error, 1)
|
||||
m.listeners = make(map[string]*tcpListener)
|
||||
m.core.configMutex.RLock()
|
||||
m.listenPort = m.core.config.LinkLocalTCPPort
|
||||
m.core.configMutex.RUnlock()
|
||||
current, _ := m.core.config.Get()
|
||||
m.listenPort = current.LinkLocalTCPPort
|
||||
go func() {
|
||||
for {
|
||||
e := <-m.reconfigure
|
||||
@ -70,9 +69,8 @@ func (m *multicast) start() error {
|
||||
|
||||
func (m *multicast) interfaces() map[string]net.Interface {
|
||||
// Get interface expressions from config
|
||||
m.core.configMutex.RLock()
|
||||
exprs := m.core.config.MulticastInterfaces
|
||||
m.core.configMutex.RUnlock()
|
||||
current, _ := m.core.config.Get()
|
||||
exprs := current.MulticastInterfaces
|
||||
// Ask the system for network interfaces
|
||||
interfaces := make(map[string]net.Interface)
|
||||
allifaces, err := net.Interfaces()
|
||||
|
@ -44,42 +44,42 @@ func (ps *peers) init(c *Core) {
|
||||
// because the key is in the whitelist or because the whitelist is empty.
|
||||
func (ps *peers) isAllowedEncryptionPublicKey(box *crypto.BoxPubKey) bool {
|
||||
boxstr := hex.EncodeToString(box[:])
|
||||
ps.core.configMutex.RLock()
|
||||
defer ps.core.configMutex.RUnlock()
|
||||
for _, v := range ps.core.config.AllowedEncryptionPublicKeys {
|
||||
ps.core.config.Mutex.RLock()
|
||||
defer ps.core.config.Mutex.RUnlock()
|
||||
for _, v := range ps.core.config.Current.AllowedEncryptionPublicKeys {
|
||||
if v == boxstr {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return len(ps.core.config.AllowedEncryptionPublicKeys) == 0
|
||||
return len(ps.core.config.Current.AllowedEncryptionPublicKeys) == 0
|
||||
}
|
||||
|
||||
// Adds a key to the whitelist.
|
||||
func (ps *peers) addAllowedEncryptionPublicKey(box string) {
|
||||
ps.core.configMutex.RLock()
|
||||
defer ps.core.configMutex.RUnlock()
|
||||
ps.core.config.AllowedEncryptionPublicKeys =
|
||||
append(ps.core.config.AllowedEncryptionPublicKeys, box)
|
||||
ps.core.config.Mutex.RLock()
|
||||
defer ps.core.config.Mutex.RUnlock()
|
||||
ps.core.config.Current.AllowedEncryptionPublicKeys =
|
||||
append(ps.core.config.Current.AllowedEncryptionPublicKeys, box)
|
||||
}
|
||||
|
||||
// Removes a key from the whitelist.
|
||||
func (ps *peers) removeAllowedEncryptionPublicKey(box string) {
|
||||
ps.core.configMutex.RLock()
|
||||
defer ps.core.configMutex.RUnlock()
|
||||
for k, v := range ps.core.config.AllowedEncryptionPublicKeys {
|
||||
ps.core.config.Mutex.RLock()
|
||||
defer ps.core.config.Mutex.RUnlock()
|
||||
for k, v := range ps.core.config.Current.AllowedEncryptionPublicKeys {
|
||||
if v == box {
|
||||
ps.core.config.AllowedEncryptionPublicKeys =
|
||||
append(ps.core.config.AllowedEncryptionPublicKeys[:k],
|
||||
ps.core.config.AllowedEncryptionPublicKeys[k+1:]...)
|
||||
ps.core.config.Current.AllowedEncryptionPublicKeys =
|
||||
append(ps.core.config.Current.AllowedEncryptionPublicKeys[:k],
|
||||
ps.core.config.Current.AllowedEncryptionPublicKeys[k+1:]...)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Gets the whitelist of allowed keys for incoming connections.
|
||||
func (ps *peers) getAllowedEncryptionPublicKeys() []string {
|
||||
ps.core.configMutex.RLock()
|
||||
defer ps.core.configMutex.RUnlock()
|
||||
return ps.core.config.AllowedEncryptionPublicKeys
|
||||
ps.core.config.Mutex.RLock()
|
||||
defer ps.core.config.Mutex.RUnlock()
|
||||
return ps.core.config.Current.AllowedEncryptionPublicKeys
|
||||
}
|
||||
|
||||
// Atomically gets a map[switchPort]*peer of known peers.
|
||||
|
@ -26,9 +26,6 @@ import (
|
||||
"bytes"
|
||||
"time"
|
||||
|
||||
"golang.org/x/net/icmp"
|
||||
"golang.org/x/net/ipv6"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
@ -44,8 +41,7 @@ type router struct {
|
||||
in <-chan []byte // packets we received from the network, link to peer's "out"
|
||||
out func([]byte) // packets we're sending to the network, link to peer's "in"
|
||||
toRecv chan router_recvPacket // packets to handle via recvPacket()
|
||||
tun tunAdapter // TUN/TAP adapter
|
||||
adapters []Adapter // Other adapters
|
||||
tun adapterImplementation // TUN/TAP adapter
|
||||
recv chan<- []byte // place where the tun pulls received packets from
|
||||
send <-chan []byte // place where the tun puts outgoing packets
|
||||
reset chan struct{} // signal that coords changed (re-init sessions/dht)
|
||||
@ -112,11 +108,11 @@ func (r *router) init(core *Core) {
|
||||
r.reset = make(chan struct{}, 1)
|
||||
r.admin = make(chan func(), 32)
|
||||
r.nodeinfo.init(r.core)
|
||||
r.core.configMutex.RLock()
|
||||
r.nodeinfo.setNodeInfo(r.core.config.NodeInfo, r.core.config.NodeInfoPrivacy)
|
||||
r.core.configMutex.RUnlock()
|
||||
r.core.config.Mutex.RLock()
|
||||
r.nodeinfo.setNodeInfo(r.core.config.Current.NodeInfo, r.core.config.Current.NodeInfoPrivacy)
|
||||
r.core.config.Mutex.RUnlock()
|
||||
r.cryptokey.init(r.core)
|
||||
r.tun.init(r.core, send, recv)
|
||||
r.tun.Init(&r.core.config, r.core.log, send, recv)
|
||||
}
|
||||
|
||||
// Starts the mainLoop goroutine.
|
||||
@ -157,9 +153,8 @@ func (r *router) mainLoop() {
|
||||
case f := <-r.admin:
|
||||
f()
|
||||
case e := <-r.reconfigure:
|
||||
r.core.configMutex.RLock()
|
||||
e <- r.nodeinfo.setNodeInfo(r.core.config.NodeInfo, r.core.config.NodeInfoPrivacy)
|
||||
r.core.configMutex.RUnlock()
|
||||
current, _ := r.core.config.Get()
|
||||
e <- r.nodeinfo.setNodeInfo(current.NodeInfo, current.NodeInfoPrivacy)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -308,7 +303,7 @@ func (r *router) sendPacket(bs []byte) {
|
||||
// Generate an ICMPv6 Packet Too Big for packets larger than session MTU
|
||||
if len(bs) > int(sinfo.getMTU()) {
|
||||
// Get the size of the oversized payload, up to a max of 900 bytes
|
||||
window := 900
|
||||
/*window := 900
|
||||
if int(sinfo.getMTU()) < window {
|
||||
window = int(sinfo.getMTU())
|
||||
}
|
||||
@ -320,12 +315,12 @@ func (r *router) sendPacket(bs []byte) {
|
||||
}
|
||||
|
||||
// Create the ICMPv6 response from it
|
||||
icmpv6Buf, err := r.tun.icmpv6.create_icmpv6_tun(
|
||||
icmpv6Buf, err := CreateICMPv6(
|
||||
bs[8:24], bs[24:40],
|
||||
ipv6.ICMPTypePacketTooBig, 0, ptb)
|
||||
if err == nil {
|
||||
r.recv <- icmpv6Buf
|
||||
}
|
||||
}*/
|
||||
|
||||
// Don't continue - drop the packet
|
||||
return
|
||||
|
@ -148,17 +148,17 @@ func (ss *sessions) init(core *Core) {
|
||||
|
||||
// Determines whether the session firewall is enabled.
|
||||
func (ss *sessions) isSessionFirewallEnabled() bool {
|
||||
ss.core.configMutex.RLock()
|
||||
defer ss.core.configMutex.RUnlock()
|
||||
ss.core.config.Mutex.RLock()
|
||||
defer ss.core.config.Mutex.RUnlock()
|
||||
|
||||
return ss.core.config.SessionFirewall.Enable
|
||||
return ss.core.config.Current.SessionFirewall.Enable
|
||||
}
|
||||
|
||||
// Determines whether the session with a given publickey is allowed based on
|
||||
// session firewall rules.
|
||||
func (ss *sessions) isSessionAllowed(pubkey *crypto.BoxPubKey, initiator bool) bool {
|
||||
ss.core.configMutex.RLock()
|
||||
defer ss.core.configMutex.RUnlock()
|
||||
ss.core.config.Mutex.RLock()
|
||||
defer ss.core.config.Mutex.RUnlock()
|
||||
|
||||
// Allow by default if the session firewall is disabled
|
||||
if !ss.isSessionFirewallEnabled() {
|
||||
@ -167,7 +167,7 @@ func (ss *sessions) isSessionAllowed(pubkey *crypto.BoxPubKey, initiator bool) b
|
||||
// Prepare for checking whitelist/blacklist
|
||||
var box crypto.BoxPubKey
|
||||
// Reject blacklisted nodes
|
||||
for _, b := range ss.core.config.SessionFirewall.BlacklistEncryptionPublicKeys {
|
||||
for _, b := range ss.core.config.Current.SessionFirewall.BlacklistEncryptionPublicKeys {
|
||||
key, err := hex.DecodeString(b)
|
||||
if err == nil {
|
||||
copy(box[:crypto.BoxPubKeyLen], key)
|
||||
@ -177,7 +177,7 @@ func (ss *sessions) isSessionAllowed(pubkey *crypto.BoxPubKey, initiator bool) b
|
||||
}
|
||||
}
|
||||
// Allow whitelisted nodes
|
||||
for _, b := range ss.core.config.SessionFirewall.WhitelistEncryptionPublicKeys {
|
||||
for _, b := range ss.core.config.Current.SessionFirewall.WhitelistEncryptionPublicKeys {
|
||||
key, err := hex.DecodeString(b)
|
||||
if err == nil {
|
||||
copy(box[:crypto.BoxPubKeyLen], key)
|
||||
@ -187,7 +187,7 @@ func (ss *sessions) isSessionAllowed(pubkey *crypto.BoxPubKey, initiator bool) b
|
||||
}
|
||||
}
|
||||
// Allow outbound sessions if appropriate
|
||||
if ss.core.config.SessionFirewall.AlwaysAllowOutbound {
|
||||
if ss.core.config.Current.SessionFirewall.AlwaysAllowOutbound {
|
||||
if initiator {
|
||||
return true
|
||||
}
|
||||
@ -201,11 +201,11 @@ func (ss *sessions) isSessionAllowed(pubkey *crypto.BoxPubKey, initiator bool) b
|
||||
}
|
||||
}
|
||||
// Allow direct peers if appropriate
|
||||
if ss.core.config.SessionFirewall.AllowFromDirect && isDirectPeer {
|
||||
if ss.core.config.Current.SessionFirewall.AllowFromDirect && isDirectPeer {
|
||||
return true
|
||||
}
|
||||
// Allow remote nodes if appropriate
|
||||
if ss.core.config.SessionFirewall.AllowFromRemote && !isDirectPeer {
|
||||
if ss.core.config.Current.SessionFirewall.AllowFromRemote && !isDirectPeer {
|
||||
return true
|
||||
}
|
||||
// Finally, default-deny if not matching any of the above rules
|
||||
@ -277,7 +277,7 @@ func (ss *sessions) createSession(theirPermKey *crypto.BoxPubKey) *sessionInfo {
|
||||
sinfo.mySesPriv = *priv
|
||||
sinfo.myNonce = *crypto.NewBoxNonce()
|
||||
sinfo.theirMTU = 1280
|
||||
sinfo.myMTU = uint16(ss.core.router.tun.mtu)
|
||||
sinfo.myMTU = uint16(ss.core.router.tun.MTU())
|
||||
now := time.Now()
|
||||
sinfo.time = now
|
||||
sinfo.mtuTime = now
|
||||
|
@ -188,9 +188,7 @@ func (t *switchTable) init(core *Core) {
|
||||
now := time.Now()
|
||||
t.core = core
|
||||
t.reconfigure = make(chan chan error, 1)
|
||||
t.core.configMutex.RLock()
|
||||
t.key = t.core.sigPub
|
||||
t.core.configMutex.RUnlock()
|
||||
locator := switchLocator{root: t.key, tstamp: now.Unix()}
|
||||
peers := make(map[switchPort]peerInfo)
|
||||
t.data = switchData{locator: locator, peers: peers}
|
||||
|
@ -82,10 +82,10 @@ func (t *tcp) init(l *link) error {
|
||||
go func() {
|
||||
for {
|
||||
e := <-t.reconfigure
|
||||
t.link.core.configMutex.RLock()
|
||||
added := util.Difference(t.link.core.config.Listen, t.link.core.configOld.Listen)
|
||||
deleted := util.Difference(t.link.core.configOld.Listen, t.link.core.config.Listen)
|
||||
t.link.core.configMutex.RUnlock()
|
||||
t.link.core.config.Mutex.RLock()
|
||||
added := util.Difference(t.link.core.config.Current.Listen, t.link.core.config.Previous.Listen)
|
||||
deleted := util.Difference(t.link.core.config.Previous.Listen, t.link.core.config.Current.Listen)
|
||||
t.link.core.config.Mutex.RUnlock()
|
||||
if len(added) > 0 || len(deleted) > 0 {
|
||||
for _, a := range added {
|
||||
if a[:6] != "tcp://" {
|
||||
@ -115,9 +115,9 @@ func (t *tcp) init(l *link) error {
|
||||
}
|
||||
}()
|
||||
|
||||
t.link.core.configMutex.RLock()
|
||||
defer t.link.core.configMutex.RUnlock()
|
||||
for _, listenaddr := range t.link.core.config.Listen {
|
||||
t.link.core.config.Mutex.RLock()
|
||||
defer t.link.core.config.Mutex.RUnlock()
|
||||
for _, listenaddr := range t.link.core.config.Current.Listen {
|
||||
if listenaddr[:6] != "tcp://" {
|
||||
continue
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user