def name(self):
result = name_map.get(self.bytes)
if not result is None:
return result
if self.bytes[0] == 0:
# SSLv3 or newer cipher suite
return SSLv3Cipher.from_stream(struct.pack("BB", *self.bytes[1:3]))[0].name
return None
def name(self):
result = name_map.get(self.bytes)
if not result is None:
return result
if self.bytes[0] == 0:
# SSLv3 or newer cipher suite
return SSLv3Cipher.from_stream(struct.pack(
"BB", *self.bytes[1:3]))[0].name
return None
def from_stream(body):
"""Parse a Server Hello record from body.
Body should start with the byte representation of an RFC 5246
struct Server Hello.
Returns a ServerHello and the number of bytes read from body
Throws a struct.error or IndexError if there is not enough data to parse
properly.
"""
version, index = Version.from_stream(body)
random, read_amt = Random.from_stream(body[index:])
index += read_amt
sessionid_length = struct.unpack_from("B", body, index)[0]
index += 1
session_id, read_amt = (
parse.parse_tls_list(
body[index:], sessionid_length,
parse.parse_opaque))
index += read_amt
cipher, read_amt = Cipher.from_stream(body[index:])
index += read_amt
method, read_amt = CompressionMethod.from_stream(body[index:])
index += read_amt
extensions = []
# Check if there are extensions present
if len(body) != index:
extensions_length = struct.unpack_from("!H", body, index)[0]
index += 2
extensions, read_amt = (
parse.parse_tls_list(
body[index:], extensions_length,
Extension.from_stream))
index += read_amt
return ServerHello(
version, random, session_id, cipher, method, extensions), index
def from_stream(body):
"""Parse a Server Hello record from body.
Body should start with the byte representation of an RFC 5246
struct Server Hello.
Returns a ServerHello and the number of bytes read from body
Throws a struct.error or IndexError if there is not enough data to parse
properly.
"""
version, index = Version.from_stream(body)
random, read_amt = Random.from_stream(body[index:])
index += read_amt
sessionid_length = struct.unpack_from("B", body, index)[0]
index += 1
session_id, read_amt = (parse.parse_tls_list(body[index:],
sessionid_length,
parse.parse_opaque))
index += read_amt
cipher, read_amt = Cipher.from_stream(body[index:])
index += read_amt
method, read_amt = CompressionMethod.from_stream(body[index:])
index += read_amt
extensions = []
# Check if there are extensions present
if len(body) != index:
extensions_length = struct.unpack_from("!H", body, index)[0]
index += 2
extensions, read_amt = (parse.parse_tls_list(
body[index:], extensions_length, Extension.from_stream))
index += read_amt
return ServerHello(version, random, session_id, cipher, method,
extensions), index
