1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 macro_rules! encode_tlv {
11 ($stream: expr, $type: expr, $field: expr, (default_value, $default: expr)) => {
12 encode_tlv!($stream, $type, $field, required)
14 ($stream: expr, $type: expr, $field: expr, required) => {
15 BigSize($type).write($stream)?;
16 BigSize($field.serialized_length() as u64).write($stream)?;
17 $field.write($stream)?;
19 ($stream: expr, $type: expr, $field: expr, vec_type) => {
20 encode_tlv!($stream, $type, ::util::ser::VecWriteWrapper(&$field), required);
22 ($stream: expr, $optional_type: expr, $optional_field: expr, option) => {
23 if let Some(ref field) = $optional_field {
24 BigSize($optional_type).write($stream)?;
25 BigSize(field.serialized_length() as u64).write($stream)?;
26 field.write($stream)?;
31 macro_rules! encode_tlv_stream {
32 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),* $(,)*}) => { {
33 #[allow(unused_imports)]
35 ln::msgs::DecodeError,
41 encode_tlv!($stream, $type, $field, $fieldty);
44 #[allow(unused_mut, unused_variables, unused_assignments)]
45 #[cfg(debug_assertions)]
47 let mut last_seen: Option<u64> = None;
49 if let Some(t) = last_seen {
50 debug_assert!(t <= $type);
52 last_seen = Some($type);
58 macro_rules! get_varint_length_prefixed_tlv_length {
59 ($len: expr, $type: expr, $field: expr, (default_value, $default: expr)) => {
60 get_varint_length_prefixed_tlv_length!($len, $type, $field, required)
62 ($len: expr, $type: expr, $field: expr, required) => {
63 BigSize($type).write(&mut $len).expect("No in-memory data may fail to serialize");
64 let field_len = $field.serialized_length();
65 BigSize(field_len as u64).write(&mut $len).expect("No in-memory data may fail to serialize");
68 ($len: expr, $type: expr, $field: expr, vec_type) => {
69 get_varint_length_prefixed_tlv_length!($len, $type, ::util::ser::VecWriteWrapper(&$field), required);
71 ($len: expr, $optional_type: expr, $optional_field: expr, option) => {
72 if let Some(ref field) = $optional_field {
73 BigSize($optional_type).write(&mut $len).expect("No in-memory data may fail to serialize");
74 let field_len = field.serialized_length();
75 BigSize(field_len as u64).write(&mut $len).expect("No in-memory data may fail to serialize");
81 macro_rules! encode_varint_length_prefixed_tlv {
82 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),*}) => { {
83 use util::ser::BigSize;
86 let mut len = ::util::ser::LengthCalculatingWriter(0);
88 get_varint_length_prefixed_tlv_length!(len, $type, $field, $fieldty);
92 BigSize(len as u64).write($stream)?;
93 encode_tlv_stream!($stream, { $(($type, $field, $fieldty)),* });
97 macro_rules! check_tlv_order {
98 ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, (default_value, $default: expr)) => {{
99 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
100 let invalid_order = ($last_seen_type.is_none() || $last_seen_type.unwrap() < $type) && $typ.0 > $type;
105 ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, required) => {{
106 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
107 let invalid_order = ($last_seen_type.is_none() || $last_seen_type.unwrap() < $type) && $typ.0 > $type;
109 return Err(DecodeError::InvalidValue);
112 ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, option) => {{
115 ($last_seen_type: expr, $typ: expr, $type: expr, $field: ident, vec_type) => {{
120 macro_rules! check_missing_tlv {
121 ($last_seen_type: expr, $type: expr, $field: ident, (default_value, $default: expr)) => {{
122 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
123 let missing_req_type = $last_seen_type.is_none() || $last_seen_type.unwrap() < $type;
124 if missing_req_type {
128 ($last_seen_type: expr, $type: expr, $field: ident, required) => {{
129 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
130 let missing_req_type = $last_seen_type.is_none() || $last_seen_type.unwrap() < $type;
131 if missing_req_type {
132 return Err(DecodeError::InvalidValue);
135 ($last_seen_type: expr, $type: expr, $field: ident, vec_type) => {{
138 ($last_seen_type: expr, $type: expr, $field: ident, option) => {{
143 macro_rules! decode_tlv {
144 ($reader: expr, $field: ident, (default_value, $default: expr)) => {{
145 decode_tlv!($reader, $field, required)
147 ($reader: expr, $field: ident, required) => {{
148 $field = ser::Readable::read(&mut $reader)?;
150 ($reader: expr, $field: ident, vec_type) => {{
151 $field = Some(ser::Readable::read(&mut $reader)?);
153 ($reader: expr, $field: ident, option) => {{
154 $field = Some(ser::Readable::read(&mut $reader)?);
158 macro_rules! decode_tlv_stream {
159 ($stream: expr, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => { {
160 use ln::msgs::DecodeError;
161 let mut last_seen_type: Option<u64> = None;
165 // First decode the type of this TLV:
166 let typ: ser::BigSize = {
167 // We track whether any bytes were read during the consensus_decode call to
168 // determine whether we should break or return ShortRead if we get an
169 // UnexpectedEof. This should in every case be largely cosmetic, but its nice to
170 // pass the TLV test vectors exactly, which requre this distinction.
171 let mut tracking_reader = ser::ReadTrackingReader::new($stream);
172 match ser::Readable::read(&mut tracking_reader) {
173 Err(DecodeError::ShortRead) => {
174 if !tracking_reader.have_read {
177 return Err(DecodeError::ShortRead);
180 Err(e) => return Err(e),
185 // Types must be unique and monotonically increasing:
186 match last_seen_type {
187 Some(t) if typ.0 <= t => {
188 return Err(DecodeError::InvalidValue);
192 // As we read types, make sure we hit every required type:
194 check_tlv_order!(last_seen_type, typ, $type, $field, $fieldty);
196 last_seen_type = Some(typ.0);
198 // Finally, read the length and value itself:
199 let length: ser::BigSize = ser::Readable::read($stream)?;
200 let mut s = ser::FixedLengthReader::new($stream, length.0);
203 decode_tlv!(s, $field, $fieldty);
204 if s.bytes_remain() {
205 s.eat_remaining()?; // Return ShortRead if there's actually not enough bytes
206 return Err(DecodeError::InvalidValue);
210 return Err(DecodeError::UnknownRequiredFeature);
216 // Make sure we got to each required type after we've read every TLV:
218 check_missing_tlv!(last_seen_type, $type, $field, $fieldty);
223 macro_rules! impl_writeable {
224 ($st:ident, $len: expr, {$($field:ident),*}) => {
225 impl ::util::ser::Writeable for $st {
226 fn write<W: ::util::ser::Writer>(&self, w: &mut W) -> Result<(), $crate::io::Error> {
230 #[cfg(any(test, feature = "fuzztarget"))]
232 // In tests, assert that the hard-coded length matches the actual one
234 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
235 $( self.$field.write(&mut len_calc).expect("No in-memory data may fail to serialize"); )*
236 assert_eq!(len_calc.0, $len);
237 assert_eq!(self.serialized_length(), $len);
240 $( self.$field.write(w)?; )*
245 fn serialized_length(&self) -> usize {
246 if $len == 0 || cfg!(any(test, feature = "fuzztarget")) {
247 let mut len_calc = 0;
248 $( len_calc += self.$field.serialized_length(); )*
250 // In tests, assert that the hard-coded length matches the actual one
251 assert_eq!(len_calc, $len);
260 impl ::util::ser::Readable for $st {
261 fn read<R: $crate::io::Read>(r: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
263 $($field: ::util::ser::Readable::read(r)?),*
269 macro_rules! impl_writeable_len_match {
270 ($struct: ident, $cmp: tt, ($calc_len: expr), {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
271 impl Writeable for $struct {
272 fn write<W: Writer>(&self, w: &mut W) -> Result<(), $crate::io::Error> {
273 let len = match *self {
274 $($match => $length,)*
277 #[cfg(any(test, feature = "fuzztarget"))]
279 // In tests, assert that the hard-coded length matches the actual one
280 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
281 $( self.$field.write(&mut len_calc).expect("No in-memory data may fail to serialize"); )*
282 assert!(len_calc.0 $cmp len);
283 assert_eq!(len_calc.0, self.serialized_length());
285 $( self.$field.write(w)?; )*
290 fn serialized_length(&self) -> usize {
291 if $calc_len || cfg!(any(test, feature = "fuzztarget")) {
292 let mut len_calc = 0;
293 $( len_calc += self.$field.serialized_length(); )*
295 assert_eq!(len_calc, match *self {
296 $($match => $length,)*
302 $($match => $length,)*
307 impl ::util::ser::Readable for $struct {
308 fn read<R: $crate::io::Read>(r: &mut R) -> Result<Self, DecodeError> {
310 $($field: Readable::read(r)?),*
315 ($struct: ident, $cmp: tt, {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
316 impl_writeable_len_match!($struct, $cmp, (true), { $({ $match, $length }),* }, { $($field),* });
318 ($struct: ident, {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
319 impl_writeable_len_match!($struct, ==, (false), { $({ $match, $length }),* }, { $($field),* });
323 /// Write out two bytes to indicate the version of an object.
324 /// $this_version represents a unique version of a type. Incremented whenever the type's
325 /// serialization format has changed or has a new interpretation. Used by a type's
326 /// reader to determine how to interpret fields or if it can understand a serialized
328 /// $min_version_that_can_read_this is the minimum reader version which can understand this
329 /// serialized object. Previous versions will simply err with a
330 /// DecodeError::UnknownVersion.
332 /// Updates to either $this_version or $min_version_that_can_read_this should be included in
335 /// Both version fields can be specific to this type of object.
336 macro_rules! write_ver_prefix {
337 ($stream: expr, $this_version: expr, $min_version_that_can_read_this: expr) => {
338 $stream.write_all(&[$this_version; 1])?;
339 $stream.write_all(&[$min_version_that_can_read_this; 1])?;
343 /// Writes out a suffix to an object which contains potentially backwards-compatible, optional
344 /// fields which old nodes can happily ignore.
346 /// It is written out in TLV format and, as with all TLV fields, unknown even fields cause a
347 /// DecodeError::UnknownRequiredFeature error, with unknown odd fields ignored.
349 /// This is the preferred method of adding new fields that old nodes can ignore and still function
351 macro_rules! write_tlv_fields {
352 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: tt)),* $(,)*}) => {
353 encode_varint_length_prefixed_tlv!($stream, {$(($type, $field, $fieldty)),*});
357 /// Reads a prefix added by write_ver_prefix!(), above. Takes the current version of the
358 /// serialization logic for this object. This is compared against the
359 /// $min_version_that_can_read_this added by write_ver_prefix!().
360 macro_rules! read_ver_prefix {
361 ($stream: expr, $this_version: expr) => { {
362 let ver: u8 = Readable::read($stream)?;
363 let min_ver: u8 = Readable::read($stream)?;
364 if min_ver > $this_version {
365 return Err(DecodeError::UnknownVersion);
371 /// Reads a suffix added by write_tlv_fields.
372 macro_rules! read_tlv_fields {
373 ($stream: expr, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => { {
374 let tlv_len = ::util::ser::BigSize::read($stream)?;
375 let mut rd = ::util::ser::FixedLengthReader::new($stream, tlv_len.0);
376 decode_tlv_stream!(&mut rd, {$(($type, $field, $fieldty)),*});
377 rd.eat_remaining().map_err(|_| ::ln::msgs::DecodeError::ShortRead)?;
381 macro_rules! init_tlv_based_struct_field {
382 ($field: ident, (default_value, $default: expr)) => {
385 ($field: ident, option) => {
388 ($field: ident, required) => {
391 ($field: ident, vec_type) => {
396 macro_rules! init_tlv_field_var {
397 ($field: ident, (default_value, $default: expr)) => {
398 let mut $field = $default;
400 ($field: ident, required) => {
401 let mut $field = ::util::ser::OptionDeserWrapper(None);
403 ($field: ident, vec_type) => {
404 let mut $field = Some(::util::ser::VecReadWrapper(Vec::new()));
406 ($field: ident, option) => {
407 let mut $field = None;
411 /// Implements Readable/Writeable for a struct storing it as a set of TLVs
412 /// If $fieldty is `required`, then $field is a required field that is not an Option nor a Vec.
413 /// If $fieldty is `option`, then $field is optional field.
414 /// if $fieldty is `vec_type`, then $field is a Vec, which needs to have its individual elements
416 macro_rules! impl_writeable_tlv_based {
417 ($st: ident, {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}) => {
418 impl ::util::ser::Writeable for $st {
419 fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), $crate::io::Error> {
420 write_tlv_fields!(writer, {
421 $(($type, self.$field, $fieldty)),*
427 fn serialized_length(&self) -> usize {
428 use util::ser::BigSize;
431 let mut len = ::util::ser::LengthCalculatingWriter(0);
433 get_varint_length_prefixed_tlv_length!(len, $type, self.$field, $fieldty);
437 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
438 BigSize(len as u64).write(&mut len_calc).expect("No in-memory data may fail to serialize");
443 impl ::util::ser::Readable for $st {
444 fn read<R: $crate::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
446 init_tlv_field_var!($field, $fieldty);
448 read_tlv_fields!(reader, {
449 $(($type, $field, $fieldty)),*
453 $field: init_tlv_based_struct_field!($field, $fieldty)
461 /// Implement Readable and Writeable for an enum, with struct variants stored as TLVs and tuple
462 /// variants stored directly.
463 /// The format is, for example
464 /// impl_writeable_tlv_based_enum!(EnumName,
465 /// (0, StructVariantA) => {(0, required_variant_field, required), (1, optional_variant_field, option)},
466 /// (1, StructVariantB) => {(0, variant_field_a, required), (1, variant_field_b, required), (2, variant_vec_field, vec_type)};
467 /// (2, TupleVariantA), (3, TupleVariantB),
469 /// The type is written as a single byte, followed by any variant data.
470 /// Attempts to read an unknown type byte result in DecodeError::UnknownRequiredFeature.
471 macro_rules! impl_writeable_tlv_based_enum {
472 ($st: ident, $(($variant_id: expr, $variant_name: ident) =>
473 {$(($type: expr, $field: ident, $fieldty: tt)),* $(,)*}
475 $(($tuple_variant_id: expr, $tuple_variant_name: ident)),* $(,)*) => {
476 impl ::util::ser::Writeable for $st {
477 fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), $crate::io::Error> {
479 $($st::$variant_name { $(ref $field),* } => {
480 let id: u8 = $variant_id;
482 write_tlv_fields!(writer, {
483 $(($type, $field, $fieldty)),*
486 $($st::$tuple_variant_name (ref field) => {
487 let id: u8 = $tuple_variant_id;
489 field.write(writer)?;
496 impl ::util::ser::Readable for $st {
497 fn read<R: $crate::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
498 let id: u8 = ::util::ser::Readable::read(reader)?;
501 // Because read_tlv_fields creates a labeled loop, we cannot call it twice
502 // in the same function body. Instead, we define a closure and call it.
505 init_tlv_field_var!($field, $fieldty);
507 read_tlv_fields!(reader, {
508 $(($type, $field, $fieldty)),*
510 Ok($st::$variant_name {
512 $field: init_tlv_based_struct_field!($field, $fieldty)
518 $($tuple_variant_id => {
519 Ok($st::$tuple_variant_name(Readable::read(reader)?))
522 Err(DecodeError::UnknownRequiredFeature)
532 use io::{self, Cursor};
534 use ln::msgs::DecodeError;
535 use util::ser::{Writeable, HighZeroBytesDroppedVarInt, VecWriter};
536 use bitcoin::secp256k1::PublicKey;
538 // The BOLT TLV test cases don't include any tests which use our "required-value" logic since
539 // the encoding layer in the BOLTs has no such concept, though it makes our macros easier to
540 // work with so they're baked into the decoder. Thus, we have a few additional tests below
541 fn tlv_reader(s: &[u8]) -> Result<(u64, u32, Option<u32>), DecodeError> {
542 let mut s = Cursor::new(s);
545 let mut c: Option<u32> = None;
546 decode_tlv_stream!(&mut s, {(2, a, required), (3, b, required), (4, c, option)});
551 fn tlv_v_short_read() {
552 // We only expect a u32 for type 3 (which we are given), but the L says its 8 bytes.
553 if let Err(DecodeError::ShortRead) = tlv_reader(&::hex::decode(
554 concat!("0100", "0208deadbeef1badbeef", "0308deadbeef")
560 fn tlv_types_out_of_order() {
561 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
562 concat!("0100", "0304deadbeef", "0208deadbeef1badbeef")
565 // ...even if its some field we don't understand
566 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
567 concat!("0208deadbeef1badbeef", "0100", "0304deadbeef")
573 fn tlv_req_type_missing_or_extra() {
574 // It's also bad if they included even fields we don't understand
575 if let Err(DecodeError::UnknownRequiredFeature) = tlv_reader(&::hex::decode(
576 concat!("0100", "0208deadbeef1badbeef", "0304deadbeef", "0600")
579 // ... or if they're missing fields we need
580 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
581 concat!("0100", "0208deadbeef1badbeef")
584 // ... even if that field is even
585 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
586 concat!("0304deadbeef", "0500")
592 fn tlv_simple_good_cases() {
593 assert_eq!(tlv_reader(&::hex::decode(
594 concat!("0208deadbeef1badbeef", "03041bad1dea")
595 ).unwrap()[..]).unwrap(),
596 (0xdeadbeef1badbeef, 0x1bad1dea, None));
597 assert_eq!(tlv_reader(&::hex::decode(
598 concat!("0208deadbeef1badbeef", "03041bad1dea", "040401020304")
599 ).unwrap()[..]).unwrap(),
600 (0xdeadbeef1badbeef, 0x1bad1dea, Some(0x01020304)));
603 // BOLT TLV test cases
604 fn tlv_reader_n1(s: &[u8]) -> Result<(Option<HighZeroBytesDroppedVarInt<u64>>, Option<u64>, Option<(PublicKey, u64, u64)>, Option<u16>), DecodeError> {
605 let mut s = Cursor::new(s);
606 let mut tlv1: Option<HighZeroBytesDroppedVarInt<u64>> = None;
607 let mut tlv2: Option<u64> = None;
608 let mut tlv3: Option<(PublicKey, u64, u64)> = None;
609 let mut tlv4: Option<u16> = None;
610 decode_tlv_stream!(&mut s, {(1, tlv1, option), (2, tlv2, option), (3, tlv3, option), (254, tlv4, option)});
611 Ok((tlv1, tlv2, tlv3, tlv4))
615 fn bolt_tlv_bogus_stream() {
616 macro_rules! do_test {
617 ($stream: expr, $reason: ident) => {
618 if let Err(DecodeError::$reason) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
623 // TLVs from the BOLT test cases which should not decode as either n1 or n2
624 do_test!(concat!("fd01"), ShortRead);
625 do_test!(concat!("fd0001", "00"), InvalidValue);
626 do_test!(concat!("fd0101"), ShortRead);
627 do_test!(concat!("0f", "fd"), ShortRead);
628 do_test!(concat!("0f", "fd26"), ShortRead);
629 do_test!(concat!("0f", "fd2602"), ShortRead);
630 do_test!(concat!("0f", "fd0001", "00"), InvalidValue);
631 do_test!(concat!("0f", "fd0201", "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"), ShortRead);
633 do_test!(concat!("12", "00"), UnknownRequiredFeature);
634 do_test!(concat!("fd0102", "00"), UnknownRequiredFeature);
635 do_test!(concat!("fe01000002", "00"), UnknownRequiredFeature);
636 do_test!(concat!("ff0100000000000002", "00"), UnknownRequiredFeature);
640 fn bolt_tlv_bogus_n1_stream() {
641 macro_rules! do_test {
642 ($stream: expr, $reason: ident) => {
643 if let Err(DecodeError::$reason) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
648 // TLVs from the BOLT test cases which should not decode as n1
649 do_test!(concat!("01", "09", "ffffffffffffffffff"), InvalidValue);
650 do_test!(concat!("01", "01", "00"), InvalidValue);
651 do_test!(concat!("01", "02", "0001"), InvalidValue);
652 do_test!(concat!("01", "03", "000100"), InvalidValue);
653 do_test!(concat!("01", "04", "00010000"), InvalidValue);
654 do_test!(concat!("01", "05", "0001000000"), InvalidValue);
655 do_test!(concat!("01", "06", "000100000000"), InvalidValue);
656 do_test!(concat!("01", "07", "00010000000000"), InvalidValue);
657 do_test!(concat!("01", "08", "0001000000000000"), InvalidValue);
658 do_test!(concat!("02", "07", "01010101010101"), ShortRead);
659 do_test!(concat!("02", "09", "010101010101010101"), InvalidValue);
660 do_test!(concat!("03", "21", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb"), ShortRead);
661 do_test!(concat!("03", "29", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001"), ShortRead);
662 do_test!(concat!("03", "30", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb000000000000000100000000000001"), ShortRead);
663 do_test!(concat!("03", "31", "043da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002"), InvalidValue);
664 do_test!(concat!("03", "32", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001000000000000000001"), InvalidValue);
665 do_test!(concat!("fd00fe", "00"), ShortRead);
666 do_test!(concat!("fd00fe", "01", "01"), ShortRead);
667 do_test!(concat!("fd00fe", "03", "010101"), InvalidValue);
668 do_test!(concat!("00", "00"), UnknownRequiredFeature);
670 do_test!(concat!("02", "08", "0000000000000226", "01", "01", "2a"), InvalidValue);
671 do_test!(concat!("02", "08", "0000000000000231", "02", "08", "0000000000000451"), InvalidValue);
672 do_test!(concat!("1f", "00", "0f", "01", "2a"), InvalidValue);
673 do_test!(concat!("1f", "00", "1f", "01", "2a"), InvalidValue);
675 // The last BOLT test modified to not require creating a new decoder for one trivial test.
676 do_test!(concat!("ffffffffffffffffff", "00", "01", "00"), InvalidValue);
680 fn bolt_tlv_valid_n1_stream() {
681 macro_rules! do_test {
682 ($stream: expr, $tlv1: expr, $tlv2: expr, $tlv3: expr, $tlv4: expr) => {
683 if let Ok((tlv1, tlv2, tlv3, tlv4)) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
684 assert_eq!(tlv1.map(|v| v.0), $tlv1);
685 assert_eq!(tlv2, $tlv2);
686 assert_eq!(tlv3, $tlv3);
687 assert_eq!(tlv4, $tlv4);
692 do_test!(concat!(""), None, None, None, None);
693 do_test!(concat!("21", "00"), None, None, None, None);
694 do_test!(concat!("fd0201", "00"), None, None, None, None);
695 do_test!(concat!("fd00fd", "00"), None, None, None, None);
696 do_test!(concat!("fd00ff", "00"), None, None, None, None);
697 do_test!(concat!("fe02000001", "00"), None, None, None, None);
698 do_test!(concat!("ff0200000000000001", "00"), None, None, None, None);
700 do_test!(concat!("01", "00"), Some(0), None, None, None);
701 do_test!(concat!("01", "01", "01"), Some(1), None, None, None);
702 do_test!(concat!("01", "02", "0100"), Some(256), None, None, None);
703 do_test!(concat!("01", "03", "010000"), Some(65536), None, None, None);
704 do_test!(concat!("01", "04", "01000000"), Some(16777216), None, None, None);
705 do_test!(concat!("01", "05", "0100000000"), Some(4294967296), None, None, None);
706 do_test!(concat!("01", "06", "010000000000"), Some(1099511627776), None, None, None);
707 do_test!(concat!("01", "07", "01000000000000"), Some(281474976710656), None, None, None);
708 do_test!(concat!("01", "08", "0100000000000000"), Some(72057594037927936), None, None, None);
709 do_test!(concat!("02", "08", "0000000000000226"), None, Some((0 << 30) | (0 << 5) | (550 << 0)), None, None);
710 do_test!(concat!("03", "31", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002"),
712 PublicKey::from_slice(&::hex::decode("023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb").unwrap()[..]).unwrap(), 1, 2)),
714 do_test!(concat!("fd00fe", "02", "0226"), None, None, None, Some(550));
717 fn do_simple_test_tlv_write() -> Result<(), io::Error> {
718 let mut stream = VecWriter(Vec::new());
721 encode_varint_length_prefixed_tlv!(&mut stream, {(1, 1u8, required), (42, None::<u64>, option)});
722 assert_eq!(stream.0, ::hex::decode("03010101").unwrap());
725 encode_varint_length_prefixed_tlv!(&mut stream, {(1, Some(1u8), option)});
726 assert_eq!(stream.0, ::hex::decode("03010101").unwrap());
729 encode_varint_length_prefixed_tlv!(&mut stream, {(4, 0xabcdu16, required), (42, None::<u64>, option)});
730 assert_eq!(stream.0, ::hex::decode("040402abcd").unwrap());
733 encode_varint_length_prefixed_tlv!(&mut stream, {(42, None::<u64>, option), (0xff, 0xabcdu16, required)});
734 assert_eq!(stream.0, ::hex::decode("06fd00ff02abcd").unwrap());
737 encode_varint_length_prefixed_tlv!(&mut stream, {(0, 1u64, required), (42, None::<u64>, option), (0xff, HighZeroBytesDroppedVarInt(0u64), required)});
738 assert_eq!(stream.0, ::hex::decode("0e00080000000000000001fd00ff00").unwrap());
741 encode_varint_length_prefixed_tlv!(&mut stream, {(0, Some(1u64), option), (0xff, HighZeroBytesDroppedVarInt(0u64), required)});
742 assert_eq!(stream.0, ::hex::decode("0e00080000000000000001fd00ff00").unwrap());
748 fn simple_test_tlv_write() {
749 do_simple_test_tlv_write().unwrap();