Esempio n. 1
0
package tunnel

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/md5"
	"crypto/rand"
	"crypto/rsa"
	"crypto/sha1"
	"encoding/binary"
	"github.com/Lafeng/deblocus/exception"
	"github.com/monnand/dhkx"
)

var (
	UNSUPPORTED_CIPHER = exception.NewW("Unsupported cipher")
)

type cipherBuilder func(k, iv []byte) *XORCipherKit

type cipherDecr struct {
	keyLen  int
	builder cipherBuilder
}

type cipherKit interface {
	encrypt(dst, src []byte)
	decrypt(dst, src []byte)
}

type XORCipherKit struct {
Esempio n. 2
0
	ERR_PING_TIMEOUT = 0xe
	ERR_NEW_PING     = 0xf
	ERR_UNKNOWN      = 0x0
)

const sid_max uint32 = 0xffff

var (
	// [1, 0xfffe]
	sid_seq      uint32
	bytePoolOnce sync.Once
	bytePool     *bytepool.BytePool
)

var (
	ERR_DATA_TAMPERED = ex.NewW("data tampered")
)

// --------------------
// event_handler
// --------------------
type event byte

const (
	evt_tokens = event(1)
)

type event_handler func(e event, msg ...interface{})

// --------------------
// idler
Esempio n. 3
0
	VERSION    uint32
	VER_STRING string
	DEBUG      bool
)

var (
	// socks5 exceptions
	INVALID_SOCKS5_HEADER  = exception.New(0xff, "Invalid socks5 header")
	INVALID_SOCKS5_REQUEST = exception.New(0x07, "Invalid socks5 request")
	GENERAL_FAILURE        = exception.New(0x01, "General failure")
	HOST_UNREACHABLE       = exception.New(0x04, "Host is unreachable")
)

var (
	// D5 exceptions
	INVALID_D5PARAMS     = exception.NewW("Invalid D5Params")
	D5SER_UNREACHABLE    = exception.NewW("D5Server is unreachable")
	VALIDATION_FAILED    = exception.NewW("Validation failed")
	NEGOTIATION_FAILED   = exception.NewW("Negotiation failed")
	DATATUN_SESSION      = exception.NewW("DT")
	INCONSISTENT_HASH    = exception.NewW("Inconsistent hash")
	INCOMPATIBLE_VERSION = exception.NewW("Incompatible version")
	UNRECOGNIZED_REQ     = exception.NewW("Unrecognized Request")
)

// len_inByte: first segment length of bytes, enum: 1,2,4
func ReadFullByLen(len_inByte int, reader io.Reader) (buf []byte, err error) {
	lb := make([]byte, len_inByte)
	_, err = io.ReadFull(reader, lb)
	if err != nil {
		return
Esempio n. 4
0
package auth

import (
	"bufio"
	"github.com/Lafeng/deblocus/exception"
	"os"
	"strings"
)

var (
	NO_SUCH_USER          = exception.NewW("No such user")
	AUTH_FAILED           = exception.NewW("Auth failed")
	UNIMPLEMENTED_AUTHSYS = exception.NewW("Unimplemented authsys")
	INVALID_AUTH_CONF     = exception.NewW("Invalid Auth config")
	INVALID_AUTH_PARAMS   = exception.NewW("Invalid Auth params")
)

type AuthSys interface {
	Authenticate(input []byte) (bool, error)
	AddUser(user *User) error
	UserInfo(user string) (*User, error)
}

type User struct {
	Name string
	Pass string
}

func GetAuthSysImpl(proto string) (AuthSys, error) {
	if strings.HasPrefix(proto, "file://") {
		return NewFileAuthSys(proto[7:])
Esempio n. 5
0
	"regexp"
	"sort"
	"strconv"
	"strings"
)

const (
	SER_KEY_TYPE         = "deblocus/SERVER-PRIVATEKEY"
	USER_CREDENTIAL_TYPE = "deblocus/CLIENT-CREDENTIAL"
	WORD_d5p             = "D5P"
	WORD_provider        = "Provider"
	SIZE_UNIT            = "BKMG"
)

var (
	FILE_NOT_FOUND          = exception.NewW("File not found")
	FILE_EXISTS             = exception.NewW("File is already exists")
	INVALID_D5P_FRAGMENT    = exception.NewW("Invalid d5p fragment")
	INVALID_D5C_FILE        = exception.NewW("Invalid d5c file format")
	INVALID_D5S_FILE        = exception.NewW("Invalid d5s file format")
	UNRECOGNIZED_SYMBOLS    = exception.NewW("Unrecognized symbols")
	UNRECOGNIZED_DIRECTIVES = exception.NewW("Unrecognized directives")
	LOCAL_BIND_ERROR        = exception.NewW("Local bind error")
	CONF_MISS               = exception.NewW("Missed config")
	CONF_ERROR              = exception.NewW("Error config")
)

// client
type D5ClientConf struct {
	Listen     string `importable:":9009"`
	Verbose    int    `importable:"1"`
Esempio n. 6
0
)

const (
	DT_PING_INTERVAL = 110
	RETRY_INTERVAL   = time.Second * 5
	REST_INTERVAL    = RETRY_INTERVAL
)

const (
	CLT_CLOSED  int32 = -1
	CLT_WORKING int32 = 0
	CLT_PENDING int32 = 1
)

var (
	ERR_REQ_TK_TIMEOUT = ex.NewW("Request token timeout")
	ERR_REQ_TK_ABORTED = ex.NewW("Requst token aborted")
)

type Client struct {
	mux         *multiplexer
	token       []byte
	nego        *dbcCltNego
	params      *tunParams
	lock        sync.Locker
	dtCnt       int32
	reqCnt      int32
	state       int32
	round       int32
	pendingConn *semaphore
	pendingTK   *semaphore