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cleanup old tls_parser
This commit is contained in:
Thomas Kriechbaumer
parent
ee6ea31147
commit
4aeb6c6455
@ -1,208 +0,0 @@
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# This file originally comes from https://github.com/pyca/tls/blob/master/tls/_constructs.py.
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# Modified by the mitmproxy team.
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from construct import (
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Array,
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Bytes,
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Struct,
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VarInt,
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Int8ub,
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Int16ub,
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Int24ub,
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Int32ub,
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PascalString,
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Embedded,
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Prefixed,
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Range,
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GreedyRange,
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Switch,
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Optional,
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)
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ProtocolVersion = "version" / Struct(
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"major" / Int8ub,
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"minor" / Int8ub,
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)
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TLSPlaintext = "TLSPlaintext" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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TLSCompressed = "TLSCompressed" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14 + 1024
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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TLSCiphertext = "TLSCiphertext" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14 + 2048
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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Random = "random" / Struct(
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"gmt_unix_time" / Int32ub,
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"random_bytes" / Bytes(28),
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)
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SessionID = "session_id" / Struct(
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"length" / Int8ub,
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"session_id" / Bytes(lambda ctx: ctx.length),
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)
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CipherSuites = "cipher_suites" / Struct(
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"length" / Int16ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length // 2, "cipher_suites" / Int16ub),
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)
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CompressionMethods = "compression_methods" / Struct(
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"length" / Int8ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, "compression_methods" / Int8ub),
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)
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ServerName = Struct(
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"type" / Int8ub,
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"name" / PascalString("length" / Int16ub),
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)
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SNIExtension = Prefixed(
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Int16ub,
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Struct(
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Int16ub,
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"server_names" / GreedyRange(
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"server_name" / Struct(
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"name_type" / Int8ub,
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"host_name" / PascalString("length" / Int16ub),
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)
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)
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)
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)
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ALPNExtension = Prefixed(
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Int16ub,
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Struct(
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Int16ub,
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"alpn_protocols" / GreedyRange(
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"name" / PascalString(Int8ub),
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),
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)
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)
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UnknownExtension = Struct(
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"bytes" / PascalString("length" / Int16ub)
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)
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Extension = "Extension" / Struct(
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"type" / Int16ub,
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Embedded(
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Switch(
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lambda ctx: ctx.type,
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{
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0x00: SNIExtension,
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0x10: ALPNExtension,
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},
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default=UnknownExtension
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)
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)
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)
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extensions = "extensions" / Optional(
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Struct(
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Int16ub,
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"extensions" / GreedyRange(Extension)
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)
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)
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ClientHello = "ClientHello" / Struct(
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ProtocolVersion,
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Random,
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SessionID,
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CipherSuites,
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CompressionMethods,
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extensions,
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)
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ServerHello = "ServerHello" / Struct(
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ProtocolVersion,
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Random,
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SessionID,
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"cipher_suite" / Bytes(2),
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"compression_method" / Int8ub,
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extensions,
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)
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ClientCertificateType = "certificate_types" / Struct(
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"length" / Int8ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, "certificate_types" / Int8ub),
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)
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SignatureAndHashAlgorithm = "algorithms" / Struct(
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"hash" / Int8ub,
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"signature" / Int8ub,
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)
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SupportedSignatureAlgorithms = "supported_signature_algorithms" / Struct(
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"supported_signature_algorithms_length" / Int16ub,
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# TODO: Reject packets of length 0
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Array(
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lambda ctx: ctx.supported_signature_algorithms_length / 2,
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SignatureAndHashAlgorithm,
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),
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)
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DistinguishedName = "certificate_authorities" / Struct(
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"length" / Int16ub,
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"certificate_authorities" / Bytes(lambda ctx: ctx.length),
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)
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CertificateRequest = "CertificateRequest" / Struct(
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ClientCertificateType,
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SupportedSignatureAlgorithms,
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DistinguishedName,
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)
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ServerDHParams = "ServerDHParams" / Struct(
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"dh_p_length" / Int16ub,
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"dh_p" / Bytes(lambda ctx: ctx.dh_p_length),
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"dh_g_length" / Int16ub,
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"dh_g" / Bytes(lambda ctx: ctx.dh_g_length),
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"dh_Ys_length" / Int16ub,
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"dh_Ys" / Bytes(lambda ctx: ctx.dh_Ys_length),
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)
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PreMasterSecret = "pre_master_secret" / Struct(
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ProtocolVersion,
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"random_bytes" / Bytes(46),
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)
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ASN1Cert = "ASN1Cert" / Struct(
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"length" / Int32ub, # TODO: Reject packets with length not in 1..2^24-1
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"asn1_cert" / Bytes(lambda ctx: ctx.length),
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)
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Certificate = "Certificate" / Struct(
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# TODO: Reject packets with length > 2 ** 24 - 1
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"certificates_length" / Int32ub,
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"certificates_bytes" / Bytes(lambda ctx: ctx.certificates_length),
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)
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Handshake = "Handshake" / Struct(
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"msg_type" / Int8ub,
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"length" / Int24ub,
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"body" / Bytes(lambda ctx: ctx.length),
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)
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Alert = "Alert" / Struct(
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"level" / Int8ub,
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"description" / Int8ub,
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)
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