func BuildCircuit(slc []dirclient.KNode, subchannel int) (io.ReadWriteCloser, error) {
// this returns a checker whether a public key is valid
pubkey_checker := func(hsh string) func([]byte) bool {
return func([]byte) bool { return true }
return func(xaxa []byte) bool {
hashed := hash_base32(xaxa)
return subtle.ConstantTimeCompare([]byte(hashed), []byte(hsh)) == 1
}
}
// circuit-building loop
gwire, err := dialer.Dial(Old2New(slc[0].Address))
if err != nil {
return nil, err
}
wire, err := kiss.TransportHandshake(kiss.GenerateDHKeys(),
gwire, pubkey_checker(slc[0].PublicKey))
if err != nil {
gwire.Close()
return nil, err
}
for _, ele := range slc[1:] {
kilog.Debug("Connecting to node %v...", string([]byte(ele.PublicKey)[:10]))
// extend wire
_, err = wire.Write(append([]byte{byte(len(ele.PublicKey))}, ele.PublicKey...))
if err != nil {
gwire.Close()
return nil, err
}
verifier := pubkey_checker(ele.PublicKey)
// at this point wire is raw (well unobfs) connection to next
wire, err = kiss.TransportHandshake(kiss.GenerateDHKeys(), wire, verifier)
if err != nil {
kilog.Debug("Died when transport at %s", ele.PublicKey)
gwire.Close()
return nil, err
}
kilog.Debug("Connected to node %v!", string([]byte(ele.PublicKey)[:10]))
}
_, err = wire.Write([]byte{byte(subchannel)})
if err != nil {
gwire.Close()
return nil, err
}
kilog.Debug("Opened subchannel %d", subchannel)
return wire, nil
}
import (
"flag"
"kirisurf-legacy/ll/dirclient"
"kirisurf-legacy/ll/kiss"
"math/rand"
"strconv"
"strings"
"time"
"code.google.com/p/gcfg"
"github.com/KirisurfProject/kilog"
)
var MasterKey = kiss.GenerateDHKeys()
var MasterKeyHash = hash_base32(MasterKey.Public)
var confloc = flag.String("c", "", "config location")
var singhop = flag.Bool("singhop", false, "single hop or not")
var noclient = flag.Bool("noclient", false, "server only")
var version = "NOT_A_RELEASE_VERSION"
func main() {
rand.Seed(time.Now().UnixNano())
go run_monitor_loop()
flag.Parse()
if *confloc == "" {
kilog.Warning("No configuration file given, using defaults")
} else {