## This file is part of Scapy
## Copyright (C) 2007, 2008, 2009 Arnaud Ebalard
##               2015, 2016, 2017 Maxence Tury
## This program is published under a GPLv2 license

"""
TLS cipher suites.

A comprehensive list of specified cipher suites can be consulted at:
https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml
"""

from __future__ import absolute_import
from scapy.layers.tls.crypto.kx_algs import _tls_kx_algs
from scapy.layers.tls.crypto.hash import _tls_hash_algs
from scapy.layers.tls.crypto.h_mac import _tls_hmac_algs
from scapy.layers.tls.crypto.ciphers import _tls_cipher_algs
import scapy.modules.six as six


def get_algs_from_ciphersuite_name(ciphersuite_name):
    """
    Return the 3-tuple made of the Key Exchange Algorithm class, the Cipher
    class and the HMAC class, through the parsing of the ciphersuite name.
    """
    tls1_3 = False
    if ciphersuite_name.startswith("TLS"):
        s = ciphersuite_name[4:]
    
        if s.endswith("CCM") or s.endswith("CCM_8"):
            kx_name, s = s.split("_WITH_")
            kx_alg = _tls_kx_algs.get(kx_name)
            hash_alg = _tls_hash_algs.get("SHA256")
            cipher_alg = _tls_cipher_algs.get(s)
            hmac_alg = None
    
        else:
            if "WITH" in s:
                kx_name, s = s.split("_WITH_")
                kx_alg = _tls_kx_algs.get(kx_name)
            else:
                tls1_3 = True
                kx_alg = _tls_kx_algs.get("TLS13")
    
            hash_name = s.split('_')[-1]
            hash_alg = _tls_hash_algs.get(hash_name)
    
            cipher_name = s[:-(len(hash_name) + 1)]
            if tls1_3:
                cipher_name += "_TLS13"
            cipher_alg = _tls_cipher_algs.get(cipher_name)
    
            hmac_alg = None
            if cipher_alg is not None and cipher_alg.type != "aead":
                hmac_name = "HMAC-%s" % hash_name
                hmac_alg = _tls_hmac_algs.get(hmac_name)

    elif ciphersuite_name.startswith("SSL"):
        s = ciphersuite_name[7:]
        kx_alg = _tls_kx_algs.get("SSLv2")
        cipher_name, hash_name = s.split("_WITH_")
        cipher_alg = _tls_cipher_algs.get(cipher_name.rstrip("_EXPORT40"))
        kx_alg.export = cipher_name.endswith("_EXPORT40")
        hmac_alg = _tls_hmac_algs.get("HMAC-NULL")
        hash_alg = _tls_hash_algs.get(hash_name)

    return kx_alg, cipher_alg, hmac_alg, hash_alg, tls1_3


_tls_cipher_suites = {}
_tls_cipher_suites_cls = {}

class _GenericCipherSuiteMetaclass(type):
    """
    Cipher suite classes are automatically registered through this metaclass.
    Their name attribute equates their respective class name.

    We also pre-compute every expected length of the key block to be generated,
    which may vary according to the current tls_version. The default is set to
    the TLS 1.2 length, and the value should be set at class instantiation.

    Regarding the AEAD cipher suites, note that the 'hmac_alg' attribute will
    be set to None. Yet, we always need a 'hash_alg' for the PRF.
    """
    def __new__(cls, cs_name, bases, dct):
        cs_val = dct.get("val")

        if cs_name != "_GenericCipherSuite":
            kx, c, hm, h, tls1_3 = get_algs_from_ciphersuite_name(cs_name)

            if c is None or h is None or (kx is None and not tls1_3):
                dct["usable"] = False
            else:
                dct["usable"] = True
                dct["name"] = cs_name
                dct["kx_alg"] = kx
                dct["cipher_alg"] = c
                dct["hmac_alg"] = hm
                dct["hash_alg"] = h

                if not tls1_3:
                    kb_len = 2*c.key_len

                    if c.type == "stream" or c.type == "block":
                        kb_len += 2*hm.key_len

                    kb_len_v1_0 = kb_len
                    if c.type == "block":
                        kb_len_v1_0 += 2*c.block_size
                        # no explicit IVs added for TLS 1.1+
                    elif c.type == "aead":
                        kb_len_v1_0 += 2*c.fixed_iv_len
                        kb_len += 2*c.fixed_iv_len

                    dct["_key_block_len_v1_0"] = kb_len_v1_0
                    dct["key_block_len"] = kb_len

            _tls_cipher_suites[cs_val] = cs_name
        the_class = super(_GenericCipherSuiteMetaclass, cls).__new__(cls,
                                                                     cs_name,
                                                                     bases,
                                                                     dct)
        if cs_name != "_GenericCipherSuite":
            _tls_cipher_suites_cls[cs_val] = the_class
        return the_class


class _GenericCipherSuite(six.with_metaclass(_GenericCipherSuiteMetaclass, object)):
    def __init__(self, tls_version=0x0303):
        """
        Most of the attributes are fixed and have already been set by the
        metaclass, but we still have to provide tls_version differentiation.

        For now, the key_block_len remains the only application if this.
        Indeed for TLS 1.1+, when using a block cipher, there are no implicit
        IVs derived from the master secret. Note that an overlong key_block_len
        would not affect the secret generation (the trailing bytes would
        simply be discarded), but we still provide this for completeness.
        """
        super(_GenericCipherSuite, self).__init__()
        if tls_version <= 0x301:
            self.key_block_len = self._key_block_len_v1_0


class TLS_NULL_WITH_NULL_NULL(_GenericCipherSuite):
    val = 0x0000

class TLS_RSA_WITH_NULL_MD5(_GenericCipherSuite):
    val = 0x0001

class TLS_RSA_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0x0002

class TLS_RSA_EXPORT_WITH_RC4_40_MD5(_GenericCipherSuite):
    val = 0x0003

class TLS_RSA_WITH_RC4_128_MD5(_GenericCipherSuite):
    val = 0x0004

class TLS_RSA_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0x0005

class TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5(_GenericCipherSuite):
    val = 0x0006

class TLS_RSA_WITH_IDEA_CBC_SHA(_GenericCipherSuite):
    val = 0x0007

class TLS_RSA_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x0008

class TLS_RSA_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x0009

class TLS_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x000A

class TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x000B

class TLS_DH_DSS_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x000C

class TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x000D

class TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x000E

class TLS_DH_RSA_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x000F

class TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x0010

class TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x0011

class TLS_DHE_DSS_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x0012

class TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x0013

class TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x0014

class TLS_DHE_RSA_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x0015

class TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x0016

class TLS_DH_anon_EXPORT_WITH_RC4_40_MD5(_GenericCipherSuite):
    val = 0x0017

class TLS_DH_anon_WITH_RC4_128_MD5(_GenericCipherSuite):
    val = 0x0018

class TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x0019

class TLS_DH_anon_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x001A

class TLS_DH_anon_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x001B

class TLS_KRB5_WITH_DES_CBC_SHA(_GenericCipherSuite):
    val = 0x001E

class TLS_KRB5_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x001F

class TLS_KRB5_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0x0020

class TLS_KRB5_WITH_IDEA_CBC_SHA(_GenericCipherSuite):
    val = 0x0021

class TLS_KRB5_WITH_DES_CBC_MD5(_GenericCipherSuite):
    val = 0x0022

class TLS_KRB5_WITH_3DES_EDE_CBC_MD5(_GenericCipherSuite):
    val = 0x0023

class TLS_KRB5_WITH_RC4_128_MD5(_GenericCipherSuite):
    val = 0x0024

class TLS_KRB5_WITH_IDEA_CBC_MD5(_GenericCipherSuite):
    val = 0x0025

class TLS_KRB5_EXPORT_WITH_DES40_CBC_SHA(_GenericCipherSuite):
    val = 0x0026

class TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA(_GenericCipherSuite):
    val = 0x0027

class TLS_KRB5_EXPORT_WITH_RC4_40_SHA(_GenericCipherSuite):
    val = 0x0028

class TLS_KRB5_EXPORT_WITH_DES40_CBC_MD5(_GenericCipherSuite):
    val = 0x0029

class TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5(_GenericCipherSuite):
    val = 0x002A

class TLS_KRB5_EXPORT_WITH_RC4_40_MD5(_GenericCipherSuite):
    val = 0x002B

class TLS_PSK_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0x002C

class TLS_DHE_PSK_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0x002D

class TLS_RSA_PSK_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0x002E

class TLS_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x002F

class TLS_DH_DSS_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0030

class TLS_DH_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0031

class TLS_DHE_DSS_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0032

class TLS_DHE_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0033

class TLS_DH_anon_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0034

class TLS_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0035

class TLS_DH_DSS_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0036

class TLS_DH_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0037

class TLS_DHE_DSS_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0038

class TLS_DHE_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0039

class TLS_DH_anon_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x003A

class TLS_RSA_WITH_NULL_SHA256(_GenericCipherSuite):
    val = 0x003B

class TLS_RSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x003C

class TLS_RSA_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x003D

class TLS_DH_DSS_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x003E

class TLS_DH_RSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x003F

class TLS_DHE_DSS_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x0040

class TLS_RSA_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0041

class TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0042

class TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0043

class TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0044

class TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0045

class TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0046

class TLS_DHE_RSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x0067

class TLS_DH_DSS_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x0068

class TLS_DH_RSA_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x0069

class TLS_DHE_DSS_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x006A

class TLS_DHE_RSA_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x006B

class TLS_DH_anon_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x006C

class TLS_DH_anon_WITH_AES_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x006D

class TLS_RSA_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0084

class TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0085

class TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0086

class TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0087

class TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0088

class TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0089

class TLS_PSK_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0x008A

class TLS_PSK_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x008B

class TLS_PSK_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x008C

class TLS_PSK_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x008D

class TLS_DHE_PSK_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0x008E

class TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x008F

class TLS_DHE_PSK_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0090

class TLS_DHE_PSK_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0091

class TLS_RSA_PSK_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0x0092

class TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0x0093

class TLS_RSA_PSK_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0x0094

class TLS_RSA_PSK_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0x0095

class TLS_RSA_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x0096

class TLS_DH_DSS_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x0097

class TLS_DH_RSA_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x0098

class TLS_DHE_DSS_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x0099

class TLS_DHE_RSA_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x009A

class TLS_DH_anon_WITH_SEED_CBC_SHA(_GenericCipherSuite):
    val = 0x009B

class TLS_RSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x009C

class TLS_RSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x009D

class TLS_DHE_RSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x009E

class TLS_DHE_RSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x009F

class TLS_DH_RSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00A0

class TLS_DH_RSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00A1

class TLS_DHE_DSS_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00A2

class TLS_DHE_DSS_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00A3

class TLS_DH_DSS_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00A4

class TLS_DH_DSS_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00A5

class TLS_DH_anon_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00A6

class TLS_DH_anon_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00A7

class TLS_PSK_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00A8

class TLS_PSK_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00A9

class TLS_DHE_PSK_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00AA

class TLS_DHE_PSK_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00AB

class TLS_RSA_PSK_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x00AC

class TLS_RSA_PSK_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x00AD

class TLS_PSK_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00AE

class TLS_PSK_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0x00AF

class TLS_PSK_WITH_NULL_SHA256(_GenericCipherSuite):
    val = 0x00B0

class TLS_PSK_WITH_NULL_SHA384(_GenericCipherSuite):
    val = 0x00B1

class TLS_DHE_PSK_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00B2

class TLS_DHE_PSK_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0x00B3

class TLS_DHE_PSK_WITH_NULL_SHA256(_GenericCipherSuite):
    val = 0x00B4

class TLS_DHE_PSK_WITH_NULL_SHA384(_GenericCipherSuite):
    val = 0x00B5

class TLS_RSA_PSK_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00B6

class TLS_RSA_PSK_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0x00B7

class TLS_RSA_PSK_WITH_NULL_SHA256(_GenericCipherSuite):
    val = 0x00B8

class TLS_RSA_PSK_WITH_NULL_SHA384(_GenericCipherSuite):
    val = 0x00B9

class TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BA

class TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BB

class TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BC

class TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BD

class TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BE

class TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0x00BF

class TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C0

class TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C1

class TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C2

class TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C3

class TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C4

class TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256(_GenericCipherSuite):
    val = 0x00C5

#class TLS_EMPTY_RENEGOTIATION_INFO_CSV(_GenericCipherSuite):
#    val = 0x00FF

#class TLS_FALLBACK_SCSV(_GenericCipherSuite):
#    val = 0x5600

class TLS_ECDH_ECDSA_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC001

class TLS_ECDH_ECDSA_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC002

class TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC003

class TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC004

class TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC005

class TLS_ECDHE_ECDSA_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC006

class TLS_ECDHE_ECDSA_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC007

class TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC008

class TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC009

class TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC00A

class TLS_ECDH_RSA_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC00B

class TLS_ECDH_RSA_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC00C

class TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC00D

class TLS_ECDH_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC00E

class TLS_ECDH_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC00F

class TLS_ECDHE_RSA_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC010

class TLS_ECDHE_RSA_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC011

class TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC012

class TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC013

class TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC014

class TLS_ECDH_anon_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC015

class TLS_ECDH_anon_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC016

class TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC017

class TLS_ECDH_anon_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC018

class TLS_ECDH_anon_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC019

class TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC01A

class TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC01B

class TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC01C

class TLS_SRP_SHA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC01D

class TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC01E

class TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC01F

class TLS_SRP_SHA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC020

class TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC021

class TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC022

class TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC023

class TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC024

class TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC025

class TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC026

class TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC027

class TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC028

class TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC029

class TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC02A

class TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC02B

class TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC02C

class TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC02D

class TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC02E

class TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC02F

class TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC030

class TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC031

class TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC032

class TLS_ECDHE_PSK_WITH_RC4_128_SHA(_GenericCipherSuite):
    val = 0xC033

class TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA(_GenericCipherSuite):
    val = 0xC034

class TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA(_GenericCipherSuite):
    val = 0xC035

class TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA(_GenericCipherSuite):
    val = 0xC036

class TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC037

class TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC038

class TLS_ECDHE_PSK_WITH_NULL_SHA(_GenericCipherSuite):
    val = 0xC039

class TLS_ECDHE_PSK_WITH_NULL_SHA256(_GenericCipherSuite):
    val = 0xC03A

class TLS_ECDHE_PSK_WITH_NULL_SHA384(_GenericCipherSuite):
    val = 0xC03B

# suites 0xC03C-C071 use ARIA

class TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC072

class TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC073

class TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC074

class TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC075

class TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC076

class TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC077

class TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC078

class TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC079

class TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC07A

class TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC07B

class TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC07C

class TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC07D

class TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC07E

class TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC07F

class TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC080

class TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC081

class TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC082

class TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC083

class TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC084

class TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC085

class TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC086

class TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC087

class TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC088

class TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC089

class TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC08A

class TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC08B

class TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC08C

class TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC08D

class TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC08E

class TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC08F

class TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC090

class TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC091

class TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256(_GenericCipherSuite):
    val = 0xC092

class TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384(_GenericCipherSuite):
    val = 0xC093

class TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC094

class TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC095

class TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC096

class TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC097

class TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC098

class TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC099

class TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256(_GenericCipherSuite):
    val = 0xC09A

class TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384(_GenericCipherSuite):
    val = 0xC09B

class TLS_RSA_WITH_AES_128_CCM(_GenericCipherSuite):
    val = 0xC09C

class TLS_RSA_WITH_AES_256_CCM(_GenericCipherSuite):
    val = 0xC09D

class TLS_DHE_RSA_WITH_AES_128_CCM(_GenericCipherSuite):
    val = 0xC09E

class TLS_DHE_RSA_WITH_AES_256_CCM(_GenericCipherSuite):
    val = 0xC09F

class TLS_RSA_WITH_AES_128_CCM_8(_GenericCipherSuite):
    val = 0xC0A0

class TLS_RSA_WITH_AES_256_CCM_8(_GenericCipherSuite):
    val = 0xC0A1

class TLS_DHE_RSA_WITH_AES_128_CCM_8(_GenericCipherSuite):
    val = 0xC0A2

class TLS_DHE_RSA_WITH_AES_256_CCM_8(_GenericCipherSuite):
    val = 0xC0A3

class TLS_PSK_WITH_AES_128_CCM(_GenericCipherSuite):
    val = 0xC0A4

class TLS_PSK_WITH_AES_256_CCM(_GenericCipherSuite):
    val = 0xC0A5

class TLS_DHE_PSK_WITH_AES_128_CCM(_GenericCipherSuite):
    val = 0xC0A6

class TLS_DHE_PSK_WITH_AES_256_CCM(_GenericCipherSuite):
    val = 0xC0A7

class TLS_PSK_WITH_AES_128_CCM_8(_GenericCipherSuite):
    val = 0xC0A8

class TLS_PSK_WITH_AES_256_CCM_8(_GenericCipherSuite):
    val = 0xC0A9

class TLS_DHE_PSK_WITH_AES_128_CCM_8(_GenericCipherSuite):
    val = 0xC0AA

class TLS_DHE_PSK_WITH_AES_256_CCM_8(_GenericCipherSuite):
    val = 0xC0AB

class TLS_ECDHE_ECDSA_WITH_AES_128_CCM(_GenericCipherSuite):
    val = 0xC0AC

class TLS_ECDHE_ECDSA_WITH_AES_256_CCM(_GenericCipherSuite):
    val = 0xC0AD

class TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8(_GenericCipherSuite):
    val = 0xC0AE

class TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8(_GenericCipherSuite):
    val = 0xC0AF

# the next 3 suites are from draft-agl-tls-chacha20poly1305-04
class TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256_OLD(_GenericCipherSuite):
    val = 0xCC13

class TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256_OLD(_GenericCipherSuite):
    val = 0xCC14

class TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256_OLD(_GenericCipherSuite):
    val = 0xCC15

class TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCA8

class TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCA9

class TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCAA

class TLS_PSK_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCAB

class TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCAC

class TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCAD

class TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0xCCAE


class TLS_AES_128_GCM_SHA256(_GenericCipherSuite):
    val = 0x1301

class TLS_AES_256_GCM_SHA384(_GenericCipherSuite):
    val = 0x1302

class TLS_CHACHA20_POLY1305_SHA256(_GenericCipherSuite):
    val = 0x1303

class TLS_AES_128_CCM_SHA256(_GenericCipherSuite):
    val = 0x1304

class TLS_AES_128_CCM_8_SHA256(_GenericCipherSuite):
    val = 0x1305


class SSL_CK_RC4_128_WITH_MD5(_GenericCipherSuite):
    val = 0x010080

class SSL_CK_RC4_128_EXPORT40_WITH_MD5(_GenericCipherSuite):
    val = 0x020080

class SSL_CK_RC2_128_CBC_WITH_MD5(_GenericCipherSuite):
    val = 0x030080

class SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5(_GenericCipherSuite):
    val = 0x040080

class SSL_CK_IDEA_128_CBC_WITH_MD5(_GenericCipherSuite):
    val = 0x050080

class SSL_CK_DES_64_CBC_WITH_MD5(_GenericCipherSuite):
    val = 0x060040

class SSL_CK_DES_192_EDE3_CBC_WITH_MD5(_GenericCipherSuite):
    val = 0x0700C0


_tls_cipher_suites[0x00ff] = "TLS_EMPTY_RENEGOTIATION_INFO_SCSV"
_tls_cipher_suites[0x5600] = "TLS_FALLBACK_SCSV"



def get_usable_ciphersuites(l, kx):
    """
    From a list of proposed ciphersuites, this function returns a list of
    usable cipher suites, i.e. for which key exchange, cipher and hash
    algorithms are known to be implemented and usable in current version of the
    TLS extension. The order of the cipher suites in the list returned by the
    function matches the one of the proposal.
    """
    res = []
    for c in l:
        if c in _tls_cipher_suites_cls:
            ciph = _tls_cipher_suites_cls[c]
            if ciph.usable:
                #XXX select among RSA and ECDSA cipher suites
                # according to the key(s) the server was given
                if ciph.kx_alg.anonymous or kx in ciph.kx_alg.name:
                    res.append(c)
    return res