diff --git a/common/protob/messages-thp.proto b/common/protob/messages-thp.proto index 041f3bf482..8419948f01 100644 --- a/common/protob/messages-thp.proto +++ b/common/protob/messages-thp.proto @@ -72,11 +72,13 @@ message ThpHandshakeCompletionReqNoisePayload { * Request: Ask device for a new session with given passphrase. * @start * @next ThpNewSession + * @next Success */ message ThpCreateNewSession{ optional string passphrase = 1; optional bool on_device = 2; // User wants to enter passphrase on the device optional bool derive_cardano = 3; // If True, Cardano keys will be derived. Ignored with BTC-only + optional uint32 session_id = 4; // Id of the session to modify } /** diff --git a/core/src/apps/base.py b/core/src/apps/base.py index e026cf2ae8..eacdb79a28 100644 --- a/core/src/apps/base.py +++ b/core/src/apps/base.py @@ -239,26 +239,26 @@ if utils.USE_THP: # Do not use `ctx` beyond this point, as it is techically # allowed to change in between await statements + if message.session_id is None: + new_session = create_new_session(channel) + try: + await unlock_device() + await derive_and_store_roots(new_session, message) + except DataError as e: + return Failure(code=FailureType.DataError, message=e.message) + except ActionCancelled as e: + return Failure(code=FailureType.ActionCancelled, message=e.message) + except NotInitialized as e: + return Failure(code=FailureType.NotInitialized, message=e.message) + # TODO handle other errors (`Exception` when "Cardano icarus secret is already set!") - new_session = create_new_session(channel) - try: - await unlock_device() - await derive_and_store_roots(new_session, message) - except DataError as e: - return Failure(code=FailureType.DataError, message=e.message) - except ActionCancelled as e: - return Failure(code=FailureType.ActionCancelled, message=e.message) - except NotInitialized as e: - return Failure(code=FailureType.NotInitialized, message=e.message) - # TODO handle other errors (`Exception`` when "Cardano icarus secret is already set!" - # and `RuntimeError` when accessing storage for mnemonic.get_secret - it actually - # happens for locked devices) - - new_session.set_session_state(SessionState.ALLOCATED) - channel.sessions[new_session.session_id] = new_session - loop.schedule(new_session.handle()) - new_session_id: int = new_session.session_id - + new_session.set_session_state(SessionState.ALLOCATED) + channel.sessions[new_session.session_id] = new_session + loop.schedule(new_session.handle()) + new_session_id: int = new_session.session_id + else: + # HMMMMMMMMMMMMMMMMMM + pass if __debug__ and utils.ALLOW_DEBUG_MESSAGES: log.debug( __name__, diff --git a/core/src/storage/cache_thp.py b/core/src/storage/cache_thp.py index 6ed41b8415..7856da4801 100644 --- a/core/src/storage/cache_thp.py +++ b/core/src/storage/cache_thp.py @@ -93,7 +93,9 @@ class SessionThpCache(ThpDataCache): super().__init__() def clear(self) -> None: - self.state[:] = bytearray(int.to_bytes(0, 1, "big")) # Set state to UNALLOCATED + self.state[:] = bytearray( + int.to_bytes(0, _SESSION_STATE_LENGTH, "big") + ) # Set state to UNALLOCATED self.session_id[:] = b"" super().clear() @@ -204,7 +206,7 @@ def set_channel_host_ephemeral_key(channel: ChannelCache, key: bytearray) -> Non channel.host_ephemeral_pubkey = key -def get_new_session(channel: ChannelCache) -> SessionThpCache: +def get_new_session(channel: ChannelCache, management: bool = False) -> SessionThpCache: new_sid = get_next_session_id(channel) index = _get_next_session_index() @@ -215,9 +217,15 @@ def get_new_session(channel: ChannelCache) -> SessionThpCache: channel.last_usage = ( _get_usage_counter_and_increment() ) # increment also use of the channel so it does not get replaced - _SESSIONS[index].state[:] = bytearray( - _UNALLOCATED_STATE.to_bytes(_SESSION_STATE_LENGTH, "big") - ) + + if management: + _SESSIONS[index].state[:] = bytearray( + _MANAGEMENT_STATE.to_bytes(_SESSION_STATE_LENGTH, "big") + ) + else: + _SESSIONS[index].state[:] = bytearray( + _UNALLOCATED_STATE.to_bytes(_SESSION_STATE_LENGTH, "big") + ) return _SESSIONS[index] diff --git a/core/src/trezor/messages.py b/core/src/trezor/messages.py index 0c64aae3c0..66d4ba0e81 100644 --- a/core/src/trezor/messages.py +++ b/core/src/trezor/messages.py @@ -6214,6 +6214,7 @@ if TYPE_CHECKING: passphrase: "str | None" on_device: "bool | None" derive_cardano: "bool | None" + session_id: "int | None" def __init__( self, @@ -6221,6 +6222,7 @@ if TYPE_CHECKING: passphrase: "str | None" = None, on_device: "bool | None" = None, derive_cardano: "bool | None" = None, + session_id: "int | None" = None, ) -> None: pass diff --git a/core/src/trezor/wire/thp/channel.py b/core/src/trezor/wire/thp/channel.py index 52af91bc20..0398b64b9a 100644 --- a/core/src/trezor/wire/thp/channel.py +++ b/core/src/trezor/wire/thp/channel.py @@ -23,6 +23,7 @@ from . import ( from .checksum import CHECKSUM_LENGTH from .transmission_loop import TransmissionLoop from .writer import ( + PACKET_LENGTH, CONT_HEADER_LENGTH, INIT_HEADER_LENGTH, write_payload_to_wire_and_add_checksum, @@ -56,7 +57,7 @@ class Channel: self.channel_id: bytes = channel_cache.channel_id # Shared variables - self.buffer: utils.BufferType = bytearray(64) + self.buffer: utils.BufferType = bytearray(PACKET_LENGTH) self.bytes_read: int = 0 self.expected_payload_length: int = 0 self.is_cont_packet_expected: bool = False diff --git a/core/src/trezor/wire/thp/received_message_handler.py b/core/src/trezor/wire/thp/received_message_handler.py index 13fc981997..0dd402a1f9 100644 --- a/core/src/trezor/wire/thp/received_message_handler.py +++ b/core/src/trezor/wire/thp/received_message_handler.py @@ -357,13 +357,19 @@ async def _handle_state_ENCRYPTED_TRANSPORT(ctx: Channel, message_length: int) - s = session_manager.create_new_management_session(ctx) else: s = session_manager.get_session_from_cache(ctx, session_id) + if s is None: - raise ThpUnallocatedSessionError(session_id) + assert session_id != MANAGEMENT_SESSION_ID + + # Create management session backed by cache (non-trivial session_id) + s = session_manager.create_new_management_session(ctx, session_id) + ctx.sessions[session_id] = s loop.schedule(s.handle()) elif ctx.sessions[session_id].get_session_state() is SessionState.UNALLOCATED: raise ThpUnallocatedSessionError(session_id) + # TODO what should happen here? Should I create a new management session? s = ctx.sessions[session_id] update_session_last_used(s.channel_id, (s.session_id).to_bytes(1, "big")) diff --git a/core/src/trezor/wire/thp/session_context.py b/core/src/trezor/wire/thp/session_context.py index 688fa46b37..6565df656b 100644 --- a/core/src/trezor/wire/thp/session_context.py +++ b/core/src/trezor/wire/thp/session_context.py @@ -131,13 +131,21 @@ class GenericSessionContext(Context): class ManagementSessionContext(GenericSessionContext): def __init__( - self, channel_ctx: Channel, session_id: int = MANAGEMENT_SESSION_ID + self, + channel_ctx: Channel, + session_id: int = MANAGEMENT_SESSION_ID, + session_cache: SessionThpCache | None = None, ) -> None: + self.session_cache = session_cache super().__init__(channel_ctx, session_id) def get_session_state(self) -> SessionState: return SessionState.MANAGEMENT + def release(self) -> None: + if self.session_cache is not None: + cache_thp.clear_session(self.session_cache) + class SessionContext(GenericSessionContext): diff --git a/core/src/trezor/wire/thp/session_manager.py b/core/src/trezor/wire/thp/session_manager.py index 3377ce437f..4b03dab5e3 100644 --- a/core/src/trezor/wire/thp/session_manager.py +++ b/core/src/trezor/wire/thp/session_manager.py @@ -28,6 +28,8 @@ def create_new_management_session( Seed cannot be derived with this type of session. """ + if session_id != cache_thp.MANAGEMENT_SESSION_ID: + cache_thp.get_new_session(channel_ctx.channel_cache, management=True) return ManagementSessionContext(channel_ctx, session_id) diff --git a/python/src/trezorlib/messages.py b/python/src/trezorlib/messages.py index a2cf4be72c..b4527a27bb 100644 --- a/python/src/trezorlib/messages.py +++ b/python/src/trezorlib/messages.py @@ -7951,6 +7951,7 @@ class ThpCreateNewSession(protobuf.MessageType): 1: protobuf.Field("passphrase", "string", repeated=False, required=False, default=None), 2: protobuf.Field("on_device", "bool", repeated=False, required=False, default=None), 3: protobuf.Field("derive_cardano", "bool", repeated=False, required=False, default=None), + 4: protobuf.Field("session_id", "uint32", repeated=False, required=False, default=None), } def __init__( @@ -7959,10 +7960,12 @@ class ThpCreateNewSession(protobuf.MessageType): passphrase: Optional["str"] = None, on_device: Optional["bool"] = None, derive_cardano: Optional["bool"] = None, + session_id: Optional["int"] = None, ) -> None: self.passphrase = passphrase self.on_device = on_device self.derive_cardano = derive_cardano + self.session_id = session_id class ThpNewSession(protobuf.MessageType): diff --git a/rust/trezor-client/src/protos/generated/messages_thp.rs b/rust/trezor-client/src/protos/generated/messages_thp.rs index 9bd5e40d3d..a0e08ccbd3 100644 --- a/rust/trezor-client/src/protos/generated/messages_thp.rs +++ b/rust/trezor-client/src/protos/generated/messages_thp.rs @@ -504,6 +504,8 @@ pub struct ThpCreateNewSession { pub on_device: ::std::option::Option, // @@protoc_insertion_point(field:hw.trezor.messages.thp.ThpCreateNewSession.derive_cardano) pub derive_cardano: ::std::option::Option, + // @@protoc_insertion_point(field:hw.trezor.messages.thp.ThpCreateNewSession.session_id) + pub session_id: ::std::option::Option, // special fields // @@protoc_insertion_point(special_field:hw.trezor.messages.thp.ThpCreateNewSession.special_fields) pub special_fields: ::protobuf::SpecialFields, @@ -594,8 +596,27 @@ impl ThpCreateNewSession { self.derive_cardano = ::std::option::Option::Some(v); } + // optional uint32 session_id = 4; + + pub fn session_id(&self) -> u32 { + self.session_id.unwrap_or(0) + } + + pub fn clear_session_id(&mut self) { + self.session_id = ::std::option::Option::None; + } + + pub fn has_session_id(&self) -> bool { + self.session_id.is_some() + } + + // Param is passed by value, moved + pub fn set_session_id(&mut self, v: u32) { + self.session_id = ::std::option::Option::Some(v); + } + fn generated_message_descriptor_data() -> ::protobuf::reflect::GeneratedMessageDescriptorData { - let mut fields = ::std::vec::Vec::with_capacity(3); + let mut fields = ::std::vec::Vec::with_capacity(4); let mut oneofs = ::std::vec::Vec::with_capacity(0); fields.push(::protobuf::reflect::rt::v2::make_option_accessor::<_, _>( "passphrase", @@ -612,6 +633,11 @@ impl ThpCreateNewSession { |m: &ThpCreateNewSession| { &m.derive_cardano }, |m: &mut ThpCreateNewSession| { &mut m.derive_cardano }, )); + fields.push(::protobuf::reflect::rt::v2::make_option_accessor::<_, _>( + "session_id", + |m: &ThpCreateNewSession| { &m.session_id }, + |m: &mut ThpCreateNewSession| { &mut m.session_id }, + )); ::protobuf::reflect::GeneratedMessageDescriptorData::new_2::( "ThpCreateNewSession", fields, @@ -639,6 +665,9 @@ impl ::protobuf::Message for ThpCreateNewSession { 24 => { self.derive_cardano = ::std::option::Option::Some(is.read_bool()?); }, + 32 => { + self.session_id = ::std::option::Option::Some(is.read_uint32()?); + }, tag => { ::protobuf::rt::read_unknown_or_skip_group(tag, is, self.special_fields.mut_unknown_fields())?; }, @@ -660,6 +689,9 @@ impl ::protobuf::Message for ThpCreateNewSession { if let Some(v) = self.derive_cardano { my_size += 1 + 1; } + if let Some(v) = self.session_id { + my_size += ::protobuf::rt::uint32_size(4, v); + } my_size += ::protobuf::rt::unknown_fields_size(self.special_fields.unknown_fields()); self.special_fields.cached_size().set(my_size as u32); my_size @@ -675,6 +707,9 @@ impl ::protobuf::Message for ThpCreateNewSession { if let Some(v) = self.derive_cardano { os.write_bool(3, v)?; } + if let Some(v) = self.session_id { + os.write_uint32(4, v)?; + } os.write_unknown_fields(self.special_fields.unknown_fields())?; ::std::result::Result::Ok(()) } @@ -695,6 +730,7 @@ impl ::protobuf::Message for ThpCreateNewSession { self.passphrase = ::std::option::Option::None; self.on_device = ::std::option::Option::None; self.derive_cardano = ::std::option::Option::None; + self.session_id = ::std::option::Option::None; self.special_fields.clear(); } @@ -703,6 +739,7 @@ impl ::protobuf::Message for ThpCreateNewSession { passphrase: ::std::option::Option::None, on_device: ::std::option::Option::None, derive_cardano: ::std::option::Option::None, + session_id: ::std::option::Option::None, special_fields: ::protobuf::SpecialFields::new(), }; &instance @@ -4046,62 +4083,62 @@ static file_descriptor_proto_data: &'static [u8] = b"\ .thp.ThpPairingMethodR\x0epairingMethods\"\xb2\x01\n%ThpHandshakeComplet\ ionReqNoisePayload\x126\n\x17host_pairing_credential\x18\x01\x20\x01(\ \x0cR\x15hostPairingCredential\x12Q\n\x0fpairing_methods\x18\x02\x20\x03\ - (\x0e2(.hw.trezor.messages.thp.ThpPairingMethodR\x0epairingMethods\"y\n\ - \x13ThpCreateNewSession\x12\x1e\n\npassphrase\x18\x01\x20\x01(\tR\npassp\ - hrase\x12\x1b\n\ton_device\x18\x02\x20\x01(\x08R\x08onDevice\x12%\n\x0ed\ - erive_cardano\x18\x03\x20\x01(\x08R\rderiveCardano\"5\n\rThpNewSession\ - \x12$\n\x0enew_session_id\x18\x01\x20\x01(\rR\x0cnewSessionId\"5\n\x16Th\ - pStartPairingRequest\x12\x1b\n\thost_name\x18\x01\x20\x01(\tR\x08hostNam\ - e\"\x20\n\x1eThpPairingPreparationsFinished\"8\n\x16ThpCodeEntryCommitme\ - nt\x12\x1e\n\ncommitment\x18\x01\x20\x01(\x0cR\ncommitment\"5\n\x15ThpCo\ - 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dMetadata:\x04\x98\xb2\x19\x01*\xf6\x06\n\x0eThpMessageType\x12-\n\"ThpM\ + essageType_ThpCreateNewSession\x10\xe8\x07\x1a\x04\x80\xa6\x1d\x01\x12'\ + \n\x1cThpMessageType_ThpNewSession\x10\xe9\x07\x1a\x04\x80\xa6\x1d\x01\ + \x120\n%ThpMessageType_ThpStartPairingRequest\x10\xf0\x07\x1a\x04\x80\ + \xa6\x1d\x01\x128\n-ThpMessageType_ThpPairingPreparationsFinished\x10\ + \xf1\x07\x1a\x04\x80\xa6\x1d\x01\x12.\n#ThpMessageType_ThpCredentialRequ\ + est\x10\xf2\x07\x1a\x04\x80\xa6\x1d\x01\x12/\n$ThpMessageType_ThpCredent\ + ialResponse\x10\xf3\x07\x1a\x04\x80\xa6\x1d\x01\x12'\n\x1cThpMessageType\ + _ThpEndRequest\x10\xf4\x07\x1a\x04\x80\xa6\x1d\x01\x12(\n\x1dThpMessageT\ + ype_ThpEndResponse\x10\xf5\x07\x1a\x04\x80\xa6\x1d\x01\x120\n%ThpMessage\ + Type_ThpCodeEntryCommitment\x10\xf8\x07\x1a\x04\x80\xa6\x1d\x01\x12/\n$T\ + hpMessageType_ThpCodeEntryChallenge\x10\xf9\x07\x1a\x04\x80\xa6\x1d\x01\ + \x12/\n$ThpMessageType_ThpCodeEntryCpaceHost\x10\xfa\x07\x1a\x04\x80\xa6\ + \x1d\x01\x121\n&ThpMessageType_ThpCodeEntryCpaceTrezor\x10\xfb\x07\x1a\ + \x04\x80\xa6\x1d\x01\x12)\n\x1eThpMessageType_ThpCodeEntryTag\x10\xfc\ + \x07\x1a\x04\x80\xa6\x1d\x01\x12,\n!ThpMessageType_ThpCodeEntrySecret\ + \x10\xfd\x07\x1a\x04\x80\xa6\x1d\x01\x12&\n\x1bThpMessageType_ThpQrCodeT\ + ag\x10\x80\x08\x1a\x04\x80\xa6\x1d\x01\x12)\n\x1eThpMessageType_ThpQrCod\ + eSecret\x10\x81\x08\x1a\x04\x80\xa6\x1d\x01\x121\n&ThpMessageType_ThpNfc\ + UnidirectionalTag\x10\x88\x08\x1a\x04\x80\xa6\x1d\x01\x124\n)ThpMessageT\ + ype_ThpNfcUnidirectionalSecret\x10\x89\x08\x1a\x04\x80\xa6\x1d\x01\"\x05\ + \x08\0\x10\xe7\x07\"\t\x08\xcc\x08\x10\xff\xff\xff\xff\x07*S\n\x10ThpPai\ + ringMethod\x12\x0c\n\x08NoMethod\x10\x01\x12\r\n\tCodeEntry\x10\x02\x12\ + \n\n\x06QrCode\x10\x03\x12\x16\n\x12NFC_Unidirectional\x10\x04B;\n#com.s\ + atoshilabs.trezor.lib.protobufB\x10TrezorMessageThp\x80\xa6\x1d\x01\ "; /// `FileDescriptorProto` object which was a source for this generated file