mirror of
https://github.com/yggdrasil-network/yggdrasil-go.git
synced 2024-11-23 10:05:17 +00:00
(broken state) WIP on tuntap
This commit is contained in:
Arceliar
parent
f1c37f8440
commit
0cff56fcc1
@ -112,3 +112,35 @@ func SubnetForKey(publicKey ed25519.PublicKey) *Subnet {
|
||||
snet[len(prefix)-1] |= 0x01
|
||||
return &snet
|
||||
}
|
||||
|
||||
// GetKet returns the partial ed25519.PublicKey for the Address.
|
||||
// This is used for key lookup.
|
||||
func (a *Address) GetKey() ed25519.PublicKey {
|
||||
var key [ed25519.PublicKeySize]byte
|
||||
prefix := GetPrefix()
|
||||
ones := int(a[len(prefix)])
|
||||
for idx := 0; idx < ones; idx++ {
|
||||
key[idx/8] |= 0x80 >> byte(idx%8)
|
||||
}
|
||||
keyOffset := ones + 1
|
||||
addrOffset := 8*len(prefix) + 8
|
||||
for idx := addrOffset; idx < 8*len(a); idx++ {
|
||||
bits := a[idx/8] & (0x80 >> byte(idx%8))
|
||||
bits <<= byte(idx % 8)
|
||||
keyIdx := keyOffset + (idx - addrOffset)
|
||||
bits >>= byte(keyIdx % 8)
|
||||
key[keyIdx/8] |= bits
|
||||
}
|
||||
for idx := range key {
|
||||
key[idx] = ^key[idx]
|
||||
}
|
||||
return ed25519.PublicKey(key[:])
|
||||
}
|
||||
|
||||
// GetKet returns the partial ed25519.PublicKey for the Subnet.
|
||||
// This is used for key lookup.
|
||||
func (s *Subnet) GetKey() ed25519.PublicKey {
|
||||
var addr Address
|
||||
copy(addr[:], s[:])
|
||||
return addr.GetKey()
|
||||
}
|
||||
|
||||
@ -1,24 +1,24 @@
|
||||
package admin
|
||||
|
||||
import (
|
||||
"encoding/hex"
|
||||
//"encoding/hex"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/url"
|
||||
"os"
|
||||
"strconv"
|
||||
//"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/gologme/log"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/config"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/version"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/version"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
|
||||
)
|
||||
|
||||
@ -82,13 +82,14 @@ func (a *AdminSocket) UpdateConfig(config *config.NodeConfig) {
|
||||
}
|
||||
|
||||
func (a *AdminSocket) SetupAdminHandlers(na *AdminSocket) {
|
||||
/* TODO
|
||||
a.AddHandler("getSelf", []string{}, func(in Info) (Info, error) {
|
||||
ip := a.core.Address().String()
|
||||
subnet := a.core.Subnet()
|
||||
return Info{
|
||||
"self": Info{
|
||||
ip: Info{
|
||||
"box_pub_key": a.core.EncryptionPublicKey(),
|
||||
// TODO"box_pub_key": a.core.EncryptionPublicKey(),
|
||||
"build_name": version.BuildName(),
|
||||
"build_version": version.BuildVersion(),
|
||||
"coords": fmt.Sprintf("%v", a.core.Coords()),
|
||||
@ -140,203 +141,205 @@ func (a *AdminSocket) SetupAdminHandlers(na *AdminSocket) {
|
||||
return Info{"switchqueues": queues.asMap()}, nil
|
||||
})
|
||||
*/
|
||||
a.AddHandler("getDHT", []string{}, func(in Info) (Info, error) {
|
||||
dht := make(Info)
|
||||
for _, d := range a.core.GetDHT() {
|
||||
panic("TODO")
|
||||
addr := new(address.Address) // TODO *address.AddrForNodeID(crypto.GetNodeID(&d.PublicKey))
|
||||
so := net.IP(addr[:]).String()
|
||||
dht[so] = Info{
|
||||
"coords": fmt.Sprintf("%v", d.Coords),
|
||||
"last_seen": d.LastSeen.Seconds(),
|
||||
"box_pub_key": hex.EncodeToString(d.PublicKey[:]),
|
||||
/*
|
||||
a.AddHandler("getDHT", []string{}, func(in Info) (Info, error) {
|
||||
dht := make(Info)
|
||||
for _, d := range a.core.GetDHT() {
|
||||
panic("TODO")
|
||||
addr := new(address.Address) // TODO *address.AddrForNodeID(crypto.GetNodeID(&d.PublicKey))
|
||||
so := net.IP(addr[:]).String()
|
||||
dht[so] = Info{
|
||||
"coords": fmt.Sprintf("%v", d.Coords),
|
||||
"last_seen": d.LastSeen.Seconds(),
|
||||
"box_pub_key": hex.EncodeToString(d.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
}
|
||||
return Info{"dht": dht}, nil
|
||||
})
|
||||
a.AddHandler("getSessions", []string{}, func(in Info) (Info, error) {
|
||||
sessions := make(Info)
|
||||
for _, s := range a.core.GetSessions() {
|
||||
panic("TODO")
|
||||
addr := new(address.Address) //*address.AddrForNodeID(crypto.GetNodeID(&s.PublicKey))
|
||||
so := net.IP(addr[:]).String()
|
||||
sessions[so] = Info{
|
||||
"coords": fmt.Sprintf("%v", s.Coords),
|
||||
"bytes_sent": s.BytesSent,
|
||||
"bytes_recvd": s.BytesRecvd,
|
||||
"mtu": s.MTU,
|
||||
"uptime": s.Uptime.Seconds(),
|
||||
"was_mtu_fixed": s.WasMTUFixed,
|
||||
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
|
||||
return Info{"dht": dht}, nil
|
||||
})
|
||||
a.AddHandler("getSessions", []string{}, func(in Info) (Info, error) {
|
||||
sessions := make(Info)
|
||||
for _, s := range a.core.GetSessions() {
|
||||
panic("TODO")
|
||||
addr := new(address.Address) //*address.AddrForNodeID(crypto.GetNodeID(&s.PublicKey))
|
||||
so := net.IP(addr[:]).String()
|
||||
sessions[so] = Info{
|
||||
"coords": fmt.Sprintf("%v", s.Coords),
|
||||
"bytes_sent": s.BytesSent,
|
||||
"bytes_recvd": s.BytesRecvd,
|
||||
"mtu": s.MTU,
|
||||
"uptime": s.Uptime.Seconds(),
|
||||
"was_mtu_fixed": s.WasMTUFixed,
|
||||
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
return Info{"sessions": sessions}, nil
|
||||
})
|
||||
a.AddHandler("addPeer", []string{"uri", "[interface]"}, func(in Info) (Info, error) {
|
||||
// Set sane defaults
|
||||
intf := ""
|
||||
// Has interface been specified?
|
||||
if itf, ok := in["interface"]; ok {
|
||||
intf = itf.(string)
|
||||
}
|
||||
if a.core.AddPeer(in["uri"].(string), intf) == nil {
|
||||
return Info{
|
||||
"added": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
}
|
||||
return Info{"sessions": sessions}, nil
|
||||
})
|
||||
a.AddHandler("addPeer", []string{"uri", "[interface]"}, func(in Info) (Info, error) {
|
||||
// Set sane defaults
|
||||
intf := ""
|
||||
// Has interface been specified?
|
||||
if itf, ok := in["interface"]; ok {
|
||||
intf = itf.(string)
|
||||
}
|
||||
if a.core.AddPeer(in["uri"].(string), intf) == nil {
|
||||
return Info{
|
||||
"added": []string{
|
||||
"not_added": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
return Info{
|
||||
"not_added": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, errors.New("Failed to add peer")
|
||||
})
|
||||
a.AddHandler("disconnectPeer", []string{"port"}, func(in Info) (Info, error) {
|
||||
port, err := strconv.ParseInt(fmt.Sprint(in["port"]), 10, 64)
|
||||
if err != nil {
|
||||
return Info{}, err
|
||||
}
|
||||
if a.core.DisconnectPeer(uint64(port)) == nil {
|
||||
return Info{
|
||||
"disconnected": []string{
|
||||
fmt.Sprint(port),
|
||||
},
|
||||
}, nil
|
||||
} else {
|
||||
return Info{
|
||||
"not_disconnected": []string{
|
||||
fmt.Sprint(port),
|
||||
},
|
||||
}, errors.New("Failed to disconnect peer")
|
||||
}
|
||||
})
|
||||
a.AddHandler("removePeer", []string{"uri", "[interface]"}, func(in Info) (Info, error) {
|
||||
// Set sane defaults
|
||||
intf := ""
|
||||
// Has interface been specified?
|
||||
if itf, ok := in["interface"]; ok {
|
||||
intf = itf.(string)
|
||||
}
|
||||
if a.core.RemovePeer(in["uri"].(string), intf) == nil {
|
||||
return Info{
|
||||
"removed": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, nil
|
||||
} else {
|
||||
}, errors.New("Failed to add peer")
|
||||
})
|
||||
a.AddHandler("disconnectPeer", []string{"port"}, func(in Info) (Info, error) {
|
||||
port, err := strconv.ParseInt(fmt.Sprint(in["port"]), 10, 64)
|
||||
if err != nil {
|
||||
return Info{}, err
|
||||
}
|
||||
if a.core.DisconnectPeer(uint64(port)) == nil {
|
||||
return Info{
|
||||
"disconnected": []string{
|
||||
fmt.Sprint(port),
|
||||
},
|
||||
}, nil
|
||||
} else {
|
||||
return Info{
|
||||
"not_disconnected": []string{
|
||||
fmt.Sprint(port),
|
||||
},
|
||||
}, errors.New("Failed to disconnect peer")
|
||||
}
|
||||
})
|
||||
a.AddHandler("removePeer", []string{"uri", "[interface]"}, func(in Info) (Info, error) {
|
||||
// Set sane defaults
|
||||
intf := ""
|
||||
// Has interface been specified?
|
||||
if itf, ok := in["interface"]; ok {
|
||||
intf = itf.(string)
|
||||
}
|
||||
if a.core.RemovePeer(in["uri"].(string), intf) == nil {
|
||||
return Info{
|
||||
"removed": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, nil
|
||||
} else {
|
||||
return Info{
|
||||
"not_removed": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, errors.New("Failed to remove peer")
|
||||
}
|
||||
return Info{
|
||||
"not_removed": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, errors.New("Failed to remove peer")
|
||||
}
|
||||
return Info{
|
||||
"not_removed": []string{
|
||||
in["uri"].(string),
|
||||
},
|
||||
}, errors.New("Failed to remove peer")
|
||||
})
|
||||
a.AddHandler("getAllowedEncryptionPublicKeys", []string{}, func(in Info) (Info, error) {
|
||||
return Info{"allowed_box_pubs": a.core.GetAllowedEncryptionPublicKeys()}, nil
|
||||
})
|
||||
a.AddHandler("addAllowedEncryptionPublicKey", []string{"box_pub_key"}, func(in Info) (Info, error) {
|
||||
if a.core.AddAllowedEncryptionPublicKey(in["box_pub_key"].(string)) == nil {
|
||||
})
|
||||
a.AddHandler("getAllowedEncryptionPublicKeys", []string{}, func(in Info) (Info, error) {
|
||||
return Info{"allowed_box_pubs": a.core.GetAllowedEncryptionPublicKeys()}, nil
|
||||
})
|
||||
a.AddHandler("addAllowedEncryptionPublicKey", []string{"box_pub_key"}, func(in Info) (Info, error) {
|
||||
if a.core.AddAllowedEncryptionPublicKey(in["box_pub_key"].(string)) == nil {
|
||||
return Info{
|
||||
"added": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
return Info{
|
||||
"added": []string{
|
||||
"not_added": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
return Info{
|
||||
"not_added": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, errors.New("Failed to add allowed key")
|
||||
})
|
||||
a.AddHandler("removeAllowedEncryptionPublicKey", []string{"box_pub_key"}, func(in Info) (Info, error) {
|
||||
if a.core.RemoveAllowedEncryptionPublicKey(in["box_pub_key"].(string)) == nil {
|
||||
}, errors.New("Failed to add allowed key")
|
||||
})
|
||||
a.AddHandler("removeAllowedEncryptionPublicKey", []string{"box_pub_key"}, func(in Info) (Info, error) {
|
||||
if a.core.RemoveAllowedEncryptionPublicKey(in["box_pub_key"].(string)) == nil {
|
||||
return Info{
|
||||
"removed": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
return Info{
|
||||
"removed": []string{
|
||||
"not_removed": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, nil
|
||||
}
|
||||
return Info{
|
||||
"not_removed": []string{
|
||||
in["box_pub_key"].(string),
|
||||
},
|
||||
}, errors.New("Failed to remove allowed key")
|
||||
})
|
||||
a.AddHandler("dhtPing", []string{"box_pub_key", "coords", "[target]"}, func(in Info) (Info, error) {
|
||||
var reserr error
|
||||
var result yggdrasil.DHTRes
|
||||
if in["target"] == nil {
|
||||
in["target"] = "none"
|
||||
}
|
||||
coords := util.DecodeCoordString(in["coords"].(string))
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
|
||||
copy(boxPubKey[:], b)
|
||||
if n, err := hex.DecodeString(in["target"].(string)); err == nil {
|
||||
var targetNodeID crypto.NodeID
|
||||
copy(targetNodeID[:], n)
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, &targetNodeID)
|
||||
} else {
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, nil)
|
||||
}, errors.New("Failed to remove allowed key")
|
||||
})
|
||||
a.AddHandler("dhtPing", []string{"box_pub_key", "coords", "[target]"}, func(in Info) (Info, error) {
|
||||
var reserr error
|
||||
var result yggdrasil.DHTRes
|
||||
if in["target"] == nil {
|
||||
in["target"] = "none"
|
||||
}
|
||||
} else {
|
||||
return Info{}, err
|
||||
}
|
||||
if reserr != nil {
|
||||
return Info{}, reserr
|
||||
}
|
||||
infos := make(map[string]map[string]string, len(result.Infos))
|
||||
for _, dinfo := range result.Infos {
|
||||
info := map[string]string{
|
||||
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
|
||||
"coords": fmt.Sprintf("%v", dinfo.Coords),
|
||||
}
|
||||
panic("TODO")
|
||||
addr := "" //net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
|
||||
infos[addr] = info
|
||||
}
|
||||
return Info{"nodes": infos}, nil
|
||||
})
|
||||
a.AddHandler("getNodeInfo", []string{"[box_pub_key]", "[coords]", "[nocache]"}, func(in Info) (Info, error) {
|
||||
var nocache bool
|
||||
if in["nocache"] != nil {
|
||||
nocache = in["nocache"].(string) == "true"
|
||||
}
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
var coords []uint64
|
||||
if in["box_pub_key"] == nil && in["coords"] == nil {
|
||||
nodeinfo := a.core.MyNodeInfo()
|
||||
var jsoninfo interface{}
|
||||
if err := json.Unmarshal(nodeinfo, &jsoninfo); err != nil {
|
||||
return Info{}, err
|
||||
}
|
||||
return Info{"nodeinfo": jsoninfo}, nil
|
||||
} else if in["box_pub_key"] == nil || in["coords"] == nil {
|
||||
return Info{}, errors.New("Expecting both box_pub_key and coords")
|
||||
} else {
|
||||
coords := util.DecodeCoordString(in["coords"].(string))
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
|
||||
copy(boxPubKey[:], b)
|
||||
if n, err := hex.DecodeString(in["target"].(string)); err == nil {
|
||||
var targetNodeID crypto.NodeID
|
||||
copy(targetNodeID[:], n)
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, &targetNodeID)
|
||||
} else {
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, nil)
|
||||
}
|
||||
} else {
|
||||
return Info{}, err
|
||||
}
|
||||
coords = util.DecodeCoordString(in["coords"].(string))
|
||||
}
|
||||
result, err := a.core.GetNodeInfo(boxPubKey, coords, nocache)
|
||||
if err == nil {
|
||||
var m map[string]interface{}
|
||||
if err = json.Unmarshal(result, &m); err == nil {
|
||||
return Info{"nodeinfo": m}, nil
|
||||
if reserr != nil {
|
||||
return Info{}, reserr
|
||||
}
|
||||
infos := make(map[string]map[string]string, len(result.Infos))
|
||||
for _, dinfo := range result.Infos {
|
||||
info := map[string]string{
|
||||
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
|
||||
"coords": fmt.Sprintf("%v", dinfo.Coords),
|
||||
}
|
||||
panic("TODO")
|
||||
addr := "" //net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
|
||||
infos[addr] = info
|
||||
}
|
||||
return Info{"nodes": infos}, nil
|
||||
})
|
||||
a.AddHandler("getNodeInfo", []string{"[box_pub_key]", "[coords]", "[nocache]"}, func(in Info) (Info, error) {
|
||||
var nocache bool
|
||||
if in["nocache"] != nil {
|
||||
nocache = in["nocache"].(string) == "true"
|
||||
}
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
var coords []uint64
|
||||
if in["box_pub_key"] == nil && in["coords"] == nil {
|
||||
nodeinfo := a.core.MyNodeInfo()
|
||||
var jsoninfo interface{}
|
||||
if err := json.Unmarshal(nodeinfo, &jsoninfo); err != nil {
|
||||
return Info{}, err
|
||||
}
|
||||
return Info{"nodeinfo": jsoninfo}, nil
|
||||
} else if in["box_pub_key"] == nil || in["coords"] == nil {
|
||||
return Info{}, errors.New("Expecting both box_pub_key and coords")
|
||||
} else {
|
||||
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
|
||||
copy(boxPubKey[:], b)
|
||||
} else {
|
||||
return Info{}, err
|
||||
}
|
||||
coords = util.DecodeCoordString(in["coords"].(string))
|
||||
}
|
||||
result, err := a.core.GetNodeInfo(boxPubKey, coords, nocache)
|
||||
if err == nil {
|
||||
var m map[string]interface{}
|
||||
if err = json.Unmarshal(result, &m); err == nil {
|
||||
return Info{"nodeinfo": m}, nil
|
||||
}
|
||||
return Info{}, err
|
||||
}
|
||||
return Info{}, err
|
||||
}
|
||||
return Info{}, err
|
||||
})
|
||||
})
|
||||
*/
|
||||
}
|
||||
|
||||
// Start runs the admin API socket to listen for / respond to admin API calls.
|
||||
|
||||
@ -1,227 +0,0 @@
|
||||
package tuntap
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"time"
|
||||
|
||||
"github.com/Arceliar/phony"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
|
||||
"golang.org/x/net/icmp"
|
||||
"golang.org/x/net/ipv6"
|
||||
)
|
||||
|
||||
const tunConnTimeout = 2 * time.Minute
|
||||
|
||||
type tunConn struct {
|
||||
phony.Inbox
|
||||
tun *TunAdapter
|
||||
conn *yggdrasil.Conn
|
||||
addr address.Address
|
||||
snet address.Subnet
|
||||
stop chan struct{}
|
||||
alive *time.Timer // From calling time.AfterFunc
|
||||
}
|
||||
|
||||
func (s *tunConn) close() {
|
||||
s.tun.Act(s, s._close_from_tun)
|
||||
}
|
||||
|
||||
func (s *tunConn) _close_from_tun() {
|
||||
go s.conn.Close() // Just in case it blocks on actor operations
|
||||
delete(s.tun.addrToConn, s.addr)
|
||||
delete(s.tun.subnetToConn, s.snet)
|
||||
func() {
|
||||
defer func() { recover() }()
|
||||
close(s.stop) // Closes reader/writer goroutines
|
||||
}()
|
||||
}
|
||||
|
||||
func (s *tunConn) _read(bs []byte) (err error) {
|
||||
select {
|
||||
case <-s.stop:
|
||||
err = errors.New("session was already closed")
|
||||
return
|
||||
default:
|
||||
}
|
||||
if len(bs) == 0 {
|
||||
err = errors.New("read packet with 0 size")
|
||||
return
|
||||
}
|
||||
ipv4 := len(bs) > 20 && bs[0]&0xf0 == 0x40
|
||||
ipv6 := len(bs) > 40 && bs[0]&0xf0 == 0x60
|
||||
isCGA := true
|
||||
// Check source addresses
|
||||
switch {
|
||||
case ipv6 && bs[8] == 0x02 && bytes.Equal(s.addr[:16], bs[8:24]): // source
|
||||
case ipv6 && bs[8] == 0x03 && bytes.Equal(s.snet[:8], bs[8:16]): // source
|
||||
default:
|
||||
isCGA = false
|
||||
}
|
||||
// Check destination addresses
|
||||
switch {
|
||||
case ipv6 && bs[24] == 0x02 && bytes.Equal(s.tun.addr[:16], bs[24:40]): // destination
|
||||
case ipv6 && bs[24] == 0x03 && bytes.Equal(s.tun.subnet[:8], bs[24:32]): // destination
|
||||
default:
|
||||
isCGA = false
|
||||
}
|
||||
// Decide how to handle the packet
|
||||
var skip bool
|
||||
switch {
|
||||
case isCGA: // Allowed
|
||||
case s.tun.ckr.isEnabled() && (ipv4 || ipv6):
|
||||
var srcAddr address.Address
|
||||
var dstAddr address.Address
|
||||
var addrlen int
|
||||
if ipv4 {
|
||||
copy(srcAddr[:], bs[12:16])
|
||||
copy(dstAddr[:], bs[16:20])
|
||||
addrlen = 4
|
||||
}
|
||||
if ipv6 {
|
||||
copy(srcAddr[:], bs[8:24])
|
||||
copy(dstAddr[:], bs[24:40])
|
||||
addrlen = 16
|
||||
}
|
||||
if !s.tun.ckr.isValidLocalAddress(dstAddr, addrlen) {
|
||||
// The destination address isn't in our CKR allowed range
|
||||
skip = true
|
||||
} else if key, err := s.tun.ckr.getPublicKeyForAddress(srcAddr, addrlen); err == nil {
|
||||
if *s.conn.RemoteAddr().(*crypto.BoxPubKey) == key {
|
||||
// This is the one allowed CKR case, where source and destination addresses are both good
|
||||
} else {
|
||||
// The CKR key associated with this address doesn't match the sender's NodeID
|
||||
skip = true
|
||||
}
|
||||
} else {
|
||||
// We have no CKR route for this source address
|
||||
skip = true
|
||||
}
|
||||
default:
|
||||
skip = true
|
||||
}
|
||||
if skip {
|
||||
err = errors.New("address not allowed")
|
||||
return
|
||||
}
|
||||
s.tun.writer.writeFrom(s, bs)
|
||||
s.stillAlive()
|
||||
return
|
||||
}
|
||||
|
||||
func (s *tunConn) writeFrom(from phony.Actor, bs []byte) {
|
||||
s.Act(from, func() {
|
||||
s._write(bs)
|
||||
})
|
||||
}
|
||||
|
||||
func (s *tunConn) _write(bs []byte) (err error) {
|
||||
select {
|
||||
case <-s.stop:
|
||||
err = errors.New("session was already closed")
|
||||
return
|
||||
default:
|
||||
}
|
||||
v4 := len(bs) > 20 && bs[0]&0xf0 == 0x40
|
||||
v6 := len(bs) > 40 && bs[0]&0xf0 == 0x60
|
||||
isCGA := true
|
||||
// Check source addresses
|
||||
switch {
|
||||
case v6 && bs[8] == 0x02 && bytes.Equal(s.tun.addr[:16], bs[8:24]): // source
|
||||
case v6 && bs[8] == 0x03 && bytes.Equal(s.tun.subnet[:8], bs[8:16]): // source
|
||||
default:
|
||||
isCGA = false
|
||||
}
|
||||
// Check destiantion addresses
|
||||
switch {
|
||||
case v6 && bs[24] == 0x02 && bytes.Equal(s.addr[:16], bs[24:40]): // destination
|
||||
case v6 && bs[24] == 0x03 && bytes.Equal(s.snet[:8], bs[24:32]): // destination
|
||||
default:
|
||||
isCGA = false
|
||||
}
|
||||
// Decide how to handle the packet
|
||||
var skip bool
|
||||
switch {
|
||||
case isCGA: // Allowed
|
||||
case s.tun.ckr.isEnabled() && (v4 || v6):
|
||||
var srcAddr address.Address
|
||||
var dstAddr address.Address
|
||||
var addrlen int
|
||||
if v4 {
|
||||
copy(srcAddr[:], bs[12:16])
|
||||
copy(dstAddr[:], bs[16:20])
|
||||
addrlen = 4
|
||||
}
|
||||
if v6 {
|
||||
copy(srcAddr[:], bs[8:24])
|
||||
copy(dstAddr[:], bs[24:40])
|
||||
addrlen = 16
|
||||
}
|
||||
if !s.tun.ckr.isValidLocalAddress(srcAddr, addrlen) {
|
||||
// The source address isn't in our CKR allowed range
|
||||
skip = true
|
||||
} else if key, err := s.tun.ckr.getPublicKeyForAddress(dstAddr, addrlen); err == nil {
|
||||
if *s.conn.RemoteAddr().(*crypto.BoxPubKey) == key {
|
||||
// This is the one allowed CKR case, where source and destination addresses are both good
|
||||
} else {
|
||||
// The CKR key associated with this address doesn't match the sender's NodeID
|
||||
skip = true
|
||||
}
|
||||
} else {
|
||||
// We have no CKR route for this destination address... why do we have the packet in the first place?
|
||||
skip = true
|
||||
}
|
||||
default:
|
||||
skip = true
|
||||
}
|
||||
if skip {
|
||||
err = errors.New("address not allowed")
|
||||
return
|
||||
}
|
||||
msg := yggdrasil.FlowKeyMessage{
|
||||
FlowKey: util.GetFlowKey(bs),
|
||||
Message: bs,
|
||||
}
|
||||
s.conn.WriteFrom(s, msg, func(err error) {
|
||||
if err == nil {
|
||||
// No point in wasting resources to send back an error if there was none
|
||||
return
|
||||
}
|
||||
s.Act(s.conn, func() {
|
||||
if e, eok := err.(yggdrasil.ConnError); !eok {
|
||||
if e.Closed() {
|
||||
s.tun.log.Debugln(s.conn.String(), "TUN/TAP generic write debug:", err)
|
||||
} else {
|
||||
s.tun.log.Errorln(s.conn.String(), "TUN/TAP generic write error:", err)
|
||||
}
|
||||
} else if e.PacketTooBig() {
|
||||
// TODO: This currently isn't aware of IPv4 for CKR
|
||||
ptb := &icmp.PacketTooBig{
|
||||
MTU: int(e.PacketMaximumSize()),
|
||||
Data: bs[:900],
|
||||
}
|
||||
if packet, err := CreateICMPv6(bs[8:24], bs[24:40], ipv6.ICMPTypePacketTooBig, 0, ptb); err == nil {
|
||||
s.tun.writer.writeFrom(s, packet)
|
||||
}
|
||||
} else {
|
||||
if e.Closed() {
|
||||
s.tun.log.Debugln(s.conn.String(), "TUN/TAP conn write debug:", err)
|
||||
} else {
|
||||
s.tun.log.Errorln(s.conn.String(), "TUN/TAP conn write error:", err)
|
||||
}
|
||||
}
|
||||
})
|
||||
})
|
||||
s.stillAlive()
|
||||
return
|
||||
}
|
||||
|
||||
func (s *tunConn) stillAlive() {
|
||||
if s.alive != nil {
|
||||
s.alive.Stop()
|
||||
}
|
||||
s.alive = time.AfterFunc(tunConnTimeout, s.close)
|
||||
}
|
||||
@ -1,12 +1,12 @@
|
||||
package tuntap
|
||||
|
||||
import (
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
|
||||
//"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
|
||||
|
||||
"golang.org/x/net/icmp"
|
||||
"golang.org/x/net/ipv6"
|
||||
//"golang.org/x/net/icmp"
|
||||
//"golang.org/x/net/ipv6"
|
||||
|
||||
"github.com/Arceliar/phony"
|
||||
)
|
||||
@ -84,139 +84,142 @@ func (tun *TunAdapter) handlePacketFrom(from phony.Actor, packet []byte, err err
|
||||
|
||||
// does the work of reading a packet and sending it to the correct tunConn
|
||||
func (tun *TunAdapter) _handlePacket(recvd []byte, err error) {
|
||||
if err != nil {
|
||||
tun.log.Errorln("TUN iface read error:", err)
|
||||
return
|
||||
}
|
||||
// Offset the buffer from now on so that we can ignore ethernet frames if
|
||||
// they are present
|
||||
bs := recvd[:]
|
||||
// Check if the packet is long enough to detect if it's an ICMP packet or not
|
||||
if len(bs) < 7 {
|
||||
tun.log.Traceln("TUN iface read undersized unknown packet, length:", len(bs))
|
||||
return
|
||||
}
|
||||
// From the IP header, work out what our source and destination addresses
|
||||
// and node IDs are. We will need these in order to work out where to send
|
||||
// the packet
|
||||
var dstAddr address.Address
|
||||
var dstSnet address.Subnet
|
||||
var addrlen int
|
||||
n := len(bs)
|
||||
// Check the IP protocol - if it doesn't match then we drop the packet and
|
||||
// do nothing with it
|
||||
if bs[0]&0xf0 == 0x60 {
|
||||
// Check if we have a fully-sized IPv6 header
|
||||
if len(bs) < 40 {
|
||||
tun.log.Traceln("TUN iface read undersized ipv6 packet, length:", len(bs))
|
||||
panic("TODO")
|
||||
/*
|
||||
if err != nil {
|
||||
tun.log.Errorln("TUN iface read error:", err)
|
||||
return
|
||||
}
|
||||
// Check the packet size
|
||||
if n-tun_IPv6_HEADER_LENGTH != 256*int(bs[4])+int(bs[5]) {
|
||||
// Offset the buffer from now on so that we can ignore ethernet frames if
|
||||
// they are present
|
||||
bs := recvd[:]
|
||||
// Check if the packet is long enough to detect if it's an ICMP packet or not
|
||||
if len(bs) < 7 {
|
||||
tun.log.Traceln("TUN iface read undersized unknown packet, length:", len(bs))
|
||||
return
|
||||
}
|
||||
// IPv6 address
|
||||
addrlen = 16
|
||||
copy(dstAddr[:addrlen], bs[24:])
|
||||
copy(dstSnet[:addrlen/2], bs[24:])
|
||||
} else if bs[0]&0xf0 == 0x40 {
|
||||
// Check if we have a fully-sized IPv4 header
|
||||
if len(bs) < 20 {
|
||||
tun.log.Traceln("TUN iface read undersized ipv4 packet, length:", len(bs))
|
||||
// From the IP header, work out what our source and destination addresses
|
||||
// and node IDs are. We will need these in order to work out where to send
|
||||
// the packet
|
||||
var dstAddr address.Address
|
||||
var dstSnet address.Subnet
|
||||
var addrlen int
|
||||
n := len(bs)
|
||||
// Check the IP protocol - if it doesn't match then we drop the packet and
|
||||
// do nothing with it
|
||||
if bs[0]&0xf0 == 0x60 {
|
||||
// Check if we have a fully-sized IPv6 header
|
||||
if len(bs) < 40 {
|
||||
tun.log.Traceln("TUN iface read undersized ipv6 packet, length:", len(bs))
|
||||
return
|
||||
}
|
||||
// Check the packet size
|
||||
if n-tun_IPv6_HEADER_LENGTH != 256*int(bs[4])+int(bs[5]) {
|
||||
return
|
||||
}
|
||||
// IPv6 address
|
||||
addrlen = 16
|
||||
copy(dstAddr[:addrlen], bs[24:])
|
||||
copy(dstSnet[:addrlen/2], bs[24:])
|
||||
} else if bs[0]&0xf0 == 0x40 {
|
||||
// Check if we have a fully-sized IPv4 header
|
||||
if len(bs) < 20 {
|
||||
tun.log.Traceln("TUN iface read undersized ipv4 packet, length:", len(bs))
|
||||
return
|
||||
}
|
||||
// Check the packet size
|
||||
if n != 256*int(bs[2])+int(bs[3]) {
|
||||
return
|
||||
}
|
||||
// IPv4 address
|
||||
addrlen = 4
|
||||
copy(dstAddr[:addrlen], bs[16:])
|
||||
} else {
|
||||
// Unknown address length or protocol, so drop the packet and ignore it
|
||||
tun.log.Traceln("Unknown packet type, dropping")
|
||||
return
|
||||
}
|
||||
// Check the packet size
|
||||
if n != 256*int(bs[2])+int(bs[3]) {
|
||||
return
|
||||
if tun.ckr.isEnabled() {
|
||||
if addrlen != 16 || (!dstAddr.IsValid() && !dstSnet.IsValid()) {
|
||||
if key, err := tun.ckr.getPublicKeyForAddress(dstAddr, addrlen); err == nil {
|
||||
// A public key was found, get the node ID for the search
|
||||
panic("TODO")
|
||||
//dstNodeID := crypto.GetNodeID(&key)
|
||||
//dstAddr = *address.AddrForNodeID(dstNodeID)
|
||||
//dstSnet = *address.SubnetForNodeID(dstNodeID)
|
||||
addrlen = 16
|
||||
}
|
||||
}
|
||||
}
|
||||
// IPv4 address
|
||||
addrlen = 4
|
||||
copy(dstAddr[:addrlen], bs[16:])
|
||||
} else {
|
||||
// Unknown address length or protocol, so drop the packet and ignore it
|
||||
tun.log.Traceln("Unknown packet type, dropping")
|
||||
return
|
||||
}
|
||||
if tun.ckr.isEnabled() {
|
||||
if addrlen != 16 || (!dstAddr.IsValid() && !dstSnet.IsValid()) {
|
||||
if /*key*/ _, err := tun.ckr.getPublicKeyForAddress(dstAddr, addrlen); err == nil {
|
||||
// A public key was found, get the node ID for the search
|
||||
panic("TODO")
|
||||
//dstNodeID := crypto.GetNodeID(&key)
|
||||
//dstAddr = *address.AddrForNodeID(dstNodeID)
|
||||
//dstSnet = *address.SubnetForNodeID(dstNodeID)
|
||||
addrlen = 16
|
||||
// Couldn't find this node's ygg IP
|
||||
dlen := len(bs)
|
||||
if dlen > 900 {
|
||||
dlen = 900
|
||||
}
|
||||
ptb := &icmp.DstUnreach{
|
||||
Data: bs[:dlen],
|
||||
}
|
||||
if packet, err := CreateICMPv6(bs[8:24], bs[24:40], ipv6.ICMPTypeDestinationUnreachable, 0, ptb); err == nil {
|
||||
tun.writer.writeFrom(nil, packet)
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
if addrlen != 16 || (!dstAddr.IsValid() && !dstSnet.IsValid()) {
|
||||
// Couldn't find this node's ygg IP
|
||||
dlen := len(bs)
|
||||
if dlen > 900 {
|
||||
dlen = 900
|
||||
}
|
||||
ptb := &icmp.DstUnreach{
|
||||
Data: bs[:dlen],
|
||||
}
|
||||
if packet, err := CreateICMPv6(bs[8:24], bs[24:40], ipv6.ICMPTypeDestinationUnreachable, 0, ptb); err == nil {
|
||||
tun.writer.writeFrom(nil, packet)
|
||||
}
|
||||
return
|
||||
}
|
||||
// Do we have an active connection for this node address?
|
||||
var dstString string
|
||||
session, isIn := tun.addrToConn[dstAddr]
|
||||
if !isIn || session == nil {
|
||||
session, isIn = tun.subnetToConn[dstSnet]
|
||||
// Do we have an active connection for this node address?
|
||||
var dstString string
|
||||
session, isIn := tun.addrToConn[dstAddr]
|
||||
if !isIn || session == nil {
|
||||
// Neither an address nor a subnet mapping matched, therefore populate
|
||||
// the node ID and mask to commence a search
|
||||
panic("TODO")
|
||||
if dstAddr.IsValid() {
|
||||
//dstString = dstAddr.GetNodeIDLengthString()
|
||||
} else {
|
||||
//dstString = dstSnet.GetNodeIDLengthString()
|
||||
session, isIn = tun.subnetToConn[dstSnet]
|
||||
if !isIn || session == nil {
|
||||
// Neither an address nor a subnet mapping matched, therefore populate
|
||||
// the node ID and mask to commence a search
|
||||
panic("TODO")
|
||||
if dstAddr.IsValid() {
|
||||
//dstString = dstAddr.GetNodeIDLengthString()
|
||||
} else {
|
||||
//dstString = dstSnet.GetNodeIDLengthString()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
// If we don't have a connection then we should open one
|
||||
if !isIn || session == nil {
|
||||
// Check we haven't been given empty node ID, really this shouldn't ever
|
||||
// happen but just to be sure...
|
||||
if dstString == "" {
|
||||
panic("Given empty dstString - this shouldn't happen")
|
||||
// If we don't have a connection then we should open one
|
||||
if !isIn || session == nil {
|
||||
// Check we haven't been given empty node ID, really this shouldn't ever
|
||||
// happen but just to be sure...
|
||||
if dstString == "" {
|
||||
panic("Given empty dstString - this shouldn't happen")
|
||||
}
|
||||
_, known := tun.dials[dstString]
|
||||
tun.dials[dstString] = append(tun.dials[dstString], bs)
|
||||
for len(tun.dials[dstString]) > 32 {
|
||||
tun.dials[dstString] = tun.dials[dstString][1:]
|
||||
}
|
||||
if !known {
|
||||
go func() {
|
||||
conn, err := tun.dialer.Dial("nodeid", dstString)
|
||||
tun.Act(nil, func() {
|
||||
packets := tun.dials[dstString]
|
||||
delete(tun.dials, dstString)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
// We've been given a connection so prepare the session wrapper
|
||||
var tc *tunConn
|
||||
if tc, err = tun._wrap(conn.(*yggdrasil.Conn)); err != nil {
|
||||
// Something went wrong when storing the connection, typically that
|
||||
// something already exists for this address or subnet
|
||||
tun.log.Debugln("TUN iface wrap:", err)
|
||||
return
|
||||
}
|
||||
for _, packet := range packets {
|
||||
tc.writeFrom(nil, packet)
|
||||
}
|
||||
})
|
||||
}()
|
||||
}
|
||||
}
|
||||
_, known := tun.dials[dstString]
|
||||
tun.dials[dstString] = append(tun.dials[dstString], bs)
|
||||
for len(tun.dials[dstString]) > 32 {
|
||||
tun.dials[dstString] = tun.dials[dstString][1:]
|
||||
// If we have a connection now, try writing to it
|
||||
if isIn && session != nil {
|
||||
session.writeFrom(tun, bs)
|
||||
}
|
||||
if !known {
|
||||
go func() {
|
||||
conn, err := tun.dialer.Dial("nodeid", dstString)
|
||||
tun.Act(nil, func() {
|
||||
packets := tun.dials[dstString]
|
||||
delete(tun.dials, dstString)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
// We've been given a connection so prepare the session wrapper
|
||||
var tc *tunConn
|
||||
if tc, err = tun._wrap(conn.(*yggdrasil.Conn)); err != nil {
|
||||
// Something went wrong when storing the connection, typically that
|
||||
// something already exists for this address or subnet
|
||||
tun.log.Debugln("TUN iface wrap:", err)
|
||||
return
|
||||
}
|
||||
for _, packet := range packets {
|
||||
tc.writeFrom(nil, packet)
|
||||
}
|
||||
})
|
||||
}()
|
||||
}
|
||||
}
|
||||
// If we have a connection now, try writing to it
|
||||
if isIn && session != nil {
|
||||
session.writeFrom(tun, bs)
|
||||
}
|
||||
*/
|
||||
}
|
||||
|
||||
152
src/tuntap/keystore.go
Normal file
152
src/tuntap/keystore.go
Normal file
@ -0,0 +1,152 @@
|
||||
package tuntap
|
||||
|
||||
import (
|
||||
"crypto/ed25519"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
iwt "github.com/Arceliar/ironwood/types"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
)
|
||||
|
||||
const keyStoreTimeout = 2 * time.Minute
|
||||
|
||||
type keyStore struct {
|
||||
tun *TunAdapter
|
||||
mutex sync.Mutex
|
||||
keyToInfo map[keyArray]*keyInfo
|
||||
addrToInfo map[address.Address]*keyInfo
|
||||
addrBuffer map[address.Address]*buffer
|
||||
subnetToInfo map[address.Subnet]*keyInfo
|
||||
subnetBuffer map[address.Subnet]*buffer
|
||||
}
|
||||
|
||||
type keyArray [ed25519.PublicKeySize]byte
|
||||
|
||||
type keyInfo struct {
|
||||
key keyArray
|
||||
address address.Address
|
||||
subnet address.Subnet
|
||||
mtu MTU // TODO use this
|
||||
timeout *time.Timer // From calling a time.AfterFunc to do cleanup
|
||||
}
|
||||
|
||||
type buffer struct {
|
||||
packets [][]byte
|
||||
timeout *time.Timer
|
||||
}
|
||||
|
||||
func (k *keyStore) init(tun *TunAdapter) {
|
||||
k.tun = tun
|
||||
k.keyToInfo = make(map[keyArray]*keyInfo)
|
||||
k.addrToInfo = make(map[address.Address]*keyInfo)
|
||||
k.addrBuffer = make(map[address.Address]*buffer)
|
||||
k.subnetToInfo = make(map[address.Subnet]*keyInfo)
|
||||
k.subnetBuffer = make(map[address.Subnet]*buffer)
|
||||
}
|
||||
|
||||
func (k *keyStore) sendToAddress(addr address.Address, bs []byte) {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
if info := k.addrToInfo[addr]; info != nil {
|
||||
k.tun.core.WriteTo(bs, iwt.Addr(info.key[:]))
|
||||
k.resetTimeout(info)
|
||||
} else {
|
||||
var buf *buffer
|
||||
if buf = k.addrBuffer[addr]; buf == nil {
|
||||
buf = new(buffer)
|
||||
k.addrBuffer[addr] = buf
|
||||
}
|
||||
msg := append([]byte(nil), bs...)
|
||||
buf.packets = append(buf.packets, msg)
|
||||
if buf.timeout != nil {
|
||||
buf.timeout.Stop()
|
||||
}
|
||||
buf.timeout = time.AfterFunc(keyStoreTimeout, func() {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
if nbuf := k.addrBuffer[addr]; nbuf == buf {
|
||||
delete(k.addrBuffer, addr)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func (k *keyStore) sendToSubnet(subnet address.Subnet, bs []byte) {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
if info := k.subnetToInfo[subnet]; info != nil {
|
||||
k.tun.core.WriteTo(bs, iwt.Addr(info.key[:]))
|
||||
k.resetTimeout(info)
|
||||
} else {
|
||||
var buf *buffer
|
||||
if buf = k.subnetBuffer[subnet]; buf == nil {
|
||||
buf = new(buffer)
|
||||
k.subnetBuffer[subnet] = buf
|
||||
}
|
||||
msg := append([]byte(nil), bs...)
|
||||
buf.packets = append(buf.packets, msg)
|
||||
if buf.timeout != nil {
|
||||
buf.timeout.Stop()
|
||||
}
|
||||
buf.timeout = time.AfterFunc(keyStoreTimeout, func() {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
if nbuf := k.subnetBuffer[subnet]; nbuf == buf {
|
||||
delete(k.subnetBuffer, subnet)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func (k *keyStore) update(key ed25519.PublicKey) {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
var kArray keyArray
|
||||
copy(kArray[:], key)
|
||||
var info *keyInfo
|
||||
if info = k.keyToInfo[kArray]; info == nil {
|
||||
info = new(keyInfo)
|
||||
info.key = kArray
|
||||
info.address = *address.AddrForKey(ed25519.PublicKey(info.key[:]))
|
||||
info.subnet = *address.SubnetForKey(ed25519.PublicKey(info.key[:]))
|
||||
info.mtu = MTU(^uint16(0)) // TODO
|
||||
k.keyToInfo[info.key] = info
|
||||
k.addrToInfo[info.address] = info
|
||||
k.subnetToInfo[info.subnet] = info
|
||||
k.resetTimeout(info)
|
||||
if buf := k.addrBuffer[info.address]; buf != nil {
|
||||
for _, bs := range buf.packets {
|
||||
k.tun.core.WriteTo(bs, iwt.Addr(info.key[:]))
|
||||
}
|
||||
delete(k.addrBuffer, info.address)
|
||||
}
|
||||
if buf := k.subnetBuffer[info.subnet]; buf != nil {
|
||||
for _, bs := range buf.packets {
|
||||
k.tun.core.WriteTo(bs, iwt.Addr(info.key[:]))
|
||||
}
|
||||
delete(k.subnetBuffer, info.subnet)
|
||||
}
|
||||
}
|
||||
k.resetTimeout(info)
|
||||
}
|
||||
|
||||
func (k *keyStore) resetTimeout(info *keyInfo) {
|
||||
if info.timeout != nil {
|
||||
info.timeout.Stop()
|
||||
}
|
||||
info.timeout = time.AfterFunc(keyStoreTimeout, func() {
|
||||
k.mutex.Lock()
|
||||
defer k.mutex.Unlock()
|
||||
if nfo := k.keyToInfo[info.key]; nfo == info {
|
||||
delete(k.keyToInfo, info.key)
|
||||
}
|
||||
if nfo := k.addrToInfo[info.address]; nfo == info {
|
||||
delete(k.addrToInfo, info.address)
|
||||
}
|
||||
if nfo := k.subnetToInfo[info.subnet]; nfo == info {
|
||||
delete(k.subnetToInfo, info.subnet)
|
||||
}
|
||||
})
|
||||
}
|
||||
@ -9,6 +9,7 @@ package tuntap
|
||||
// TODO: Don't block in reader on writes that are pending searches
|
||||
|
||||
import (
|
||||
"crypto/ed25519"
|
||||
"encoding/hex"
|
||||
"errors"
|
||||
"fmt"
|
||||
@ -38,13 +39,12 @@ const tun_IPv6_HEADER_LENGTH = 40
|
||||
// calling yggdrasil.Start().
|
||||
type TunAdapter struct {
|
||||
core *yggdrasil.Core
|
||||
store keyStore
|
||||
writer tunWriter
|
||||
reader tunReader
|
||||
config *config.NodeState
|
||||
log *log.Logger
|
||||
reconfigure chan chan error
|
||||
listener *yggdrasil.Listener
|
||||
dialer *yggdrasil.Dialer
|
||||
addr address.Address
|
||||
subnet address.Subnet
|
||||
ckr cryptokey
|
||||
@ -53,15 +53,12 @@ type TunAdapter struct {
|
||||
iface tun.Device
|
||||
phony.Inbox // Currently only used for _handlePacket from the reader, TODO: all the stuff that currently needs a mutex below
|
||||
//mutex sync.RWMutex // Protects the below
|
||||
addrToConn map[address.Address]*tunConn
|
||||
subnetToConn map[address.Subnet]*tunConn
|
||||
dials map[string][][]byte // Buffer of packets to send after dialing finishes
|
||||
isOpen bool
|
||||
isOpen bool
|
||||
}
|
||||
|
||||
type TunOptions struct {
|
||||
Listener *yggdrasil.Listener
|
||||
Dialer *yggdrasil.Dialer
|
||||
//Listener *yggdrasil.Listener
|
||||
//Dialer *yggdrasil.Dialer
|
||||
}
|
||||
|
||||
// Gets the maximum supported MTU for the platform based on the defaults in
|
||||
@ -113,20 +110,20 @@ func MaximumMTU() MTU {
|
||||
// Init initialises the TUN module. You must have acquired a Listener from
|
||||
// the Yggdrasil core before this point and it must not be in use elsewhere.
|
||||
func (tun *TunAdapter) Init(core *yggdrasil.Core, config *config.NodeState, log *log.Logger, options interface{}) error {
|
||||
/* TODO
|
||||
tunoptions, ok := options.(TunOptions)
|
||||
if !ok {
|
||||
return fmt.Errorf("invalid options supplied to TunAdapter module")
|
||||
}
|
||||
*/
|
||||
tun.core = core
|
||||
tun.store.init(tun)
|
||||
tun.config = config
|
||||
tun.log = log
|
||||
tun.listener = tunoptions.Listener
|
||||
tun.dialer = tunoptions.Dialer
|
||||
tun.addrToConn = make(map[address.Address]*tunConn)
|
||||
tun.subnetToConn = make(map[address.Subnet]*tunConn)
|
||||
tun.dials = make(map[string][][]byte)
|
||||
tun.writer.tun = tun
|
||||
tun.reader.tun = tun
|
||||
tun.core.SetOutOfBandHandler(tun.oobHandler)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -145,7 +142,7 @@ func (tun *TunAdapter) _start() error {
|
||||
return errors.New("TUN module is already started")
|
||||
}
|
||||
current := tun.config.GetCurrent()
|
||||
if tun.config == nil || tun.listener == nil || tun.dialer == nil {
|
||||
if tun.config == nil {
|
||||
return errors.New("no configuration available to TUN")
|
||||
}
|
||||
var boxPub crypto.BoxPubKey
|
||||
@ -169,9 +166,9 @@ func (tun *TunAdapter) _start() error {
|
||||
if tun.MTU() != current.IfMTU {
|
||||
tun.log.Warnf("Warning: Interface MTU %d automatically adjusted to %d (supported range is 1280-%d)", current.IfMTU, tun.MTU(), MaximumMTU())
|
||||
}
|
||||
tun.core.SetMaximumSessionMTU(tun.MTU())
|
||||
// TODO tun.core.SetMaximumSessionMTU(tun.MTU())
|
||||
tun.isOpen = true
|
||||
go tun.handler()
|
||||
// TODO go tun.handler()
|
||||
tun.reader.Act(nil, tun.reader._read) // Start the reader
|
||||
tun.ckr.init(tun)
|
||||
return nil
|
||||
@ -225,6 +222,7 @@ func (tun *TunAdapter) UpdateConfig(config *config.NodeConfig) {
|
||||
tun.Act(nil, tun.ckr.configure)
|
||||
}
|
||||
|
||||
/*
|
||||
func (tun *TunAdapter) handler() error {
|
||||
for {
|
||||
// Accept the incoming connection
|
||||
@ -283,3 +281,19 @@ func (tun *TunAdapter) _wrap(conn *yggdrasil.Conn) (c *tunConn, err error) {
|
||||
// Return
|
||||
return c, err
|
||||
}
|
||||
*/
|
||||
|
||||
func (tun *TunAdapter) oobHandler(fromKey, toKey ed25519.PublicKey, data []byte) {
|
||||
panic("TODO")
|
||||
// parse packet
|
||||
// If it's a lookup then send a response
|
||||
// If it's a response then (maybe) update the keystore
|
||||
}
|
||||
|
||||
func (tun *TunAdapter) sendKeyLookup(partial ed25519.PublicKey) {
|
||||
panic("TODO")
|
||||
}
|
||||
|
||||
func (tun *TunAdapter) sendKeyResponse(dest ed25519.PublicKey) {
|
||||
panic("TODO")
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user