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, $field: expr, required) => {
12 BigSize($type).write($stream)?;
13 BigSize($field.serialized_length() as u64).write($stream)?;
14 $field.write($stream)?;
16 ($stream: expr, $type: expr, $field: expr, vec_type) => {
17 encode_tlv!($stream, $type, ::util::ser::VecWriteWrapper(&$field), required);
19 ($stream: expr, $optional_type: expr, $optional_field: expr, option) => {
20 if let Some(ref field) = $optional_field {
21 BigSize($optional_type).write($stream)?;
22 BigSize(field.serialized_length() as u64).write($stream)?;
23 field.write($stream)?;
28 macro_rules! encode_tlv_stream {
29 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),*}) => { {
30 #[allow(unused_imports)]
32 ln::msgs::DecodeError,
38 encode_tlv!($stream, $type, $field, $fieldty);
41 #[allow(unused_mut, unused_variables, unused_assignments)]
42 #[cfg(debug_assertions)]
44 let mut last_seen: Option<u64> = None;
46 if let Some(t) = last_seen {
47 debug_assert!(t <= $type);
49 last_seen = Some($type);
55 macro_rules! get_varint_length_prefixed_tlv_length {
56 ($len: expr, $type: expr, $field: expr, required) => {
57 BigSize($type).write(&mut $len).expect("No in-memory data may fail to serialize");
58 let field_len = $field.serialized_length();
59 BigSize(field_len as u64).write(&mut $len).expect("No in-memory data may fail to serialize");
62 ($len: expr, $type: expr, $field: expr, vec_type) => {
63 get_varint_length_prefixed_tlv_length!($len, $type, ::util::ser::VecWriteWrapper(&$field), required);
65 ($len: expr, $optional_type: expr, $optional_field: expr, option) => {
66 if let Some(ref field) = $optional_field {
67 BigSize($optional_type).write(&mut $len).expect("No in-memory data may fail to serialize");
68 let field_len = field.serialized_length();
69 BigSize(field_len as u64).write(&mut $len).expect("No in-memory data may fail to serialize");
75 macro_rules! encode_varint_length_prefixed_tlv {
76 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),*}) => { {
77 use util::ser::BigSize;
80 let mut len = ::util::ser::LengthCalculatingWriter(0);
82 get_varint_length_prefixed_tlv_length!(len, $type, $field, $fieldty);
86 BigSize(len as u64).write($stream)?;
87 encode_tlv_stream!($stream, { $(($type, $field, $fieldty)),* });
91 macro_rules! check_tlv_order {
92 ($last_seen_type: expr, $typ: expr, $type: expr, required) => {{
93 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
94 let invalid_order = ($last_seen_type.is_none() || $last_seen_type.unwrap() < $type) && $typ.0 > $type;
96 Err(DecodeError::InvalidValue)?
99 ($last_seen_type: expr, $typ: expr, $type: expr, option) => {{
102 ($last_seen_type: expr, $typ: expr, $type: expr, vec_type) => {{
107 macro_rules! check_missing_tlv {
108 ($last_seen_type: expr, $type: expr, required) => {{
109 #[allow(unused_comparisons)] // Note that $type may be 0 making the second comparison always true
110 let missing_req_type = $last_seen_type.is_none() || $last_seen_type.unwrap() < $type;
111 if missing_req_type {
112 Err(DecodeError::InvalidValue)?
115 ($last_seen_type: expr, $type: expr, vec_type) => {{
118 ($last_seen_type: expr, $type: expr, option) => {{
123 macro_rules! decode_tlv {
124 ($reader: expr, $field: ident, required) => {{
125 $field = ser::Readable::read(&mut $reader)?;
127 ($reader: expr, $field: ident, vec_type) => {{
128 $field = Some(ser::Readable::read(&mut $reader)?);
130 ($reader: expr, $field: ident, option) => {{
131 $field = Some(ser::Readable::read(&mut $reader)?);
135 macro_rules! decode_tlv_stream {
136 ($stream: expr, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => { {
137 use ln::msgs::DecodeError;
138 let mut last_seen_type: Option<u64> = None;
142 // First decode the type of this TLV:
143 let typ: ser::BigSize = {
144 // We track whether any bytes were read during the consensus_decode call to
145 // determine whether we should break or return ShortRead if we get an
146 // UnexpectedEof. This should in every case be largely cosmetic, but its nice to
147 // pass the TLV test vectors exactly, which requre this distinction.
148 let mut tracking_reader = ser::ReadTrackingReader::new($stream);
149 match ser::Readable::read(&mut tracking_reader) {
150 Err(DecodeError::ShortRead) => {
151 if !tracking_reader.have_read {
154 Err(DecodeError::ShortRead)?
162 // Types must be unique and monotonically increasing:
163 match last_seen_type {
164 Some(t) if typ.0 <= t => {
165 Err(DecodeError::InvalidValue)?
169 // As we read types, make sure we hit every required type:
171 check_tlv_order!(last_seen_type, typ, $type, $fieldty);
173 last_seen_type = Some(typ.0);
175 // Finally, read the length and value itself:
176 let length: ser::BigSize = ser::Readable::read($stream)?;
177 let mut s = ser::FixedLengthReader::new($stream, length.0);
180 decode_tlv!(s, $field, $fieldty);
181 if s.bytes_remain() {
182 s.eat_remaining()?; // Return ShortRead if there's actually not enough bytes
183 Err(DecodeError::InvalidValue)?
187 Err(DecodeError::UnknownRequiredFeature)?
193 // Make sure we got to each required type after we've read every TLV:
195 check_missing_tlv!(last_seen_type, $type, $fieldty);
200 macro_rules! impl_writeable {
201 ($st:ident, $len: expr, {$($field:ident),*}) => {
202 impl ::util::ser::Writeable for $st {
203 fn write<W: ::util::ser::Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
207 #[cfg(any(test, feature = "fuzztarget"))]
209 // In tests, assert that the hard-coded length matches the actual one
211 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
212 $( self.$field.write(&mut len_calc).expect("No in-memory data may fail to serialize"); )*
213 assert_eq!(len_calc.0, $len);
214 assert_eq!(self.serialized_length(), $len);
217 $( self.$field.write(w)?; )*
222 fn serialized_length(&self) -> usize {
223 if $len == 0 || cfg!(any(test, feature = "fuzztarget")) {
224 let mut len_calc = 0;
225 $( len_calc += self.$field.serialized_length(); )*
227 // In tests, assert that the hard-coded length matches the actual one
228 assert_eq!(len_calc, $len);
237 impl ::util::ser::Readable for $st {
238 fn read<R: ::std::io::Read>(r: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
240 $($field: ::util::ser::Readable::read(r)?),*
246 macro_rules! impl_writeable_len_match {
247 ($struct: ident, $cmp: tt, ($calc_len: expr), {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
248 impl Writeable for $struct {
249 fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
250 let len = match *self {
251 $($match => $length,)*
254 #[cfg(any(test, feature = "fuzztarget"))]
256 // In tests, assert that the hard-coded length matches the actual one
257 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
258 $( self.$field.write(&mut len_calc).expect("No in-memory data may fail to serialize"); )*
259 assert!(len_calc.0 $cmp len);
260 assert_eq!(len_calc.0, self.serialized_length());
262 $( self.$field.write(w)?; )*
267 fn serialized_length(&self) -> usize {
268 if $calc_len || cfg!(any(test, feature = "fuzztarget")) {
269 let mut len_calc = 0;
270 $( len_calc += self.$field.serialized_length(); )*
272 assert_eq!(len_calc, match *self {
273 $($match => $length,)*
279 $($match => $length,)*
284 impl ::util::ser::Readable for $struct {
285 fn read<R: ::std::io::Read>(r: &mut R) -> Result<Self, DecodeError> {
287 $($field: Readable::read(r)?),*
292 ($struct: ident, $cmp: tt, {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
293 impl_writeable_len_match!($struct, $cmp, (true), { $({ $match, $length }),* }, { $($field),* });
295 ($struct: ident, {$({$match: pat, $length: expr}),*}, {$($field:ident),*}) => {
296 impl_writeable_len_match!($struct, ==, (false), { $({ $match, $length }),* }, { $($field),* });
300 /// Write out two bytes to indicate the version of an object.
301 /// $this_version represents a unique version of a type. Incremented whenever the type's
302 /// serialization format has changed or has a new interpretation. Used by a type's
303 /// reader to determine how to interpret fields or if it can understand a serialized
305 /// $min_version_that_can_read_this is the minimum reader version which can understand this
306 /// serialized object. Previous versions will simply err with a
307 /// DecodeError::UnknownVersion.
309 /// Updates to either $this_version or $min_version_that_can_read_this should be included in
312 /// Both version fields can be specific to this type of object.
313 macro_rules! write_ver_prefix {
314 ($stream: expr, $this_version: expr, $min_version_that_can_read_this: expr) => {
315 $stream.write_all(&[$this_version; 1])?;
316 $stream.write_all(&[$min_version_that_can_read_this; 1])?;
320 /// Writes out a suffix to an object which contains potentially backwards-compatible, optional
321 /// fields which old nodes can happily ignore.
323 /// It is written out in TLV format and, as with all TLV fields, unknown even fields cause a
324 /// DecodeError::UnknownRequiredFeature error, with unknown odd fields ignored.
326 /// This is the preferred method of adding new fields that old nodes can ignore and still function
328 macro_rules! write_tlv_fields {
329 ($stream: expr, {$(($type: expr, $field: expr, $fieldty: ident)),* $(,)*}) => {
330 encode_varint_length_prefixed_tlv!($stream, {$(($type, $field, $fieldty)),*});
334 /// Reads a prefix added by write_ver_prefix!(), above. Takes the current version of the
335 /// serialization logic for this object. This is compared against the
336 /// $min_version_that_can_read_this added by write_ver_prefix!().
337 macro_rules! read_ver_prefix {
338 ($stream: expr, $this_version: expr) => { {
339 let ver: u8 = Readable::read($stream)?;
340 let min_ver: u8 = Readable::read($stream)?;
341 if min_ver > $this_version {
342 return Err(DecodeError::UnknownVersion);
348 /// Reads a suffix added by write_tlv_fields.
349 macro_rules! read_tlv_fields {
350 ($stream: expr, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => { {
351 let tlv_len = ::util::ser::BigSize::read($stream)?;
352 let mut rd = ::util::ser::FixedLengthReader::new($stream, tlv_len.0);
353 decode_tlv_stream!(&mut rd, {$(($type, $field, $fieldty)),*});
354 rd.eat_remaining().map_err(|_| ::ln::msgs::DecodeError::ShortRead)?;
358 macro_rules! init_tlv_based_struct_field {
359 ($field: ident, option) => {
362 ($field: ident, required) => {
365 ($field: ident, vec_type) => {
370 macro_rules! init_tlv_field_var {
371 ($field: ident, required) => {
372 let mut $field = ::util::ser::OptionDeserWrapper(None);
374 ($field: ident, vec_type) => {
375 let mut $field = Some(::util::ser::VecReadWrapper(Vec::new()));
377 ($field: ident, option) => {
378 let mut $field = None;
382 /// Implements Readable/Writeable for a struct storing it as a set of TLVs
383 /// If $fieldty is `required`, then $field is a required field that is not an Option nor a Vec.
384 /// If $fieldty is `option`, then $field is optional field.
385 /// if $fieldty is `vec_type`, then $field is a Vec, which needs to have its individual elements
387 macro_rules! impl_writeable_tlv_based {
388 ($st: ident, {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}) => {
389 impl ::util::ser::Writeable for $st {
390 fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
391 write_tlv_fields!(writer, {
392 $(($type, self.$field, $fieldty)),*
398 fn serialized_length(&self) -> usize {
399 use util::ser::BigSize;
402 let mut len = ::util::ser::LengthCalculatingWriter(0);
404 get_varint_length_prefixed_tlv_length!(len, $type, self.$field, $fieldty);
408 let mut len_calc = ::util::ser::LengthCalculatingWriter(0);
409 BigSize(len as u64).write(&mut len_calc).expect("No in-memory data may fail to serialize");
414 impl ::util::ser::Readable for $st {
415 fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
417 init_tlv_field_var!($field, $fieldty);
419 read_tlv_fields!(reader, {
420 $(($type, $field, $fieldty)),*
424 $field: init_tlv_based_struct_field!($field, $fieldty)
432 /// Implement Readable and Writeable for an enum, with struct variants stored as TLVs and tuple
433 /// variants stored directly.
434 /// The format is, for example
435 /// impl_writeable_tlv_based_enum!(EnumName,
436 /// (0, StructVariantA) => {(0, required_variant_field, required), (1, optional_variant_field, option)},
437 /// (1, StructVariantB) => {(0, variant_field_a, required), (1, variant_field_b, required), (2, variant_vec_field, vec_type)};
438 /// (2, TupleVariantA), (3, TupleVariantB),
440 /// The type is written as a single byte, followed by any variant data.
441 /// Attempts to read an unknown type byte result in DecodeError::UnknownRequiredFeature.
442 macro_rules! impl_writeable_tlv_based_enum {
443 ($st: ident, $(($variant_id: expr, $variant_name: ident) =>
444 {$(($type: expr, $field: ident, $fieldty: ident)),* $(,)*}
446 $(($tuple_variant_id: expr, $tuple_variant_name: ident)),* $(,)*) => {
447 impl ::util::ser::Writeable for $st {
448 fn write<W: ::util::ser::Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
450 $($st::$variant_name { $(ref $field),* } => {
451 let id: u8 = $variant_id;
453 write_tlv_fields!(writer, {
454 $(($type, $field, $fieldty)),*
457 $($st::$tuple_variant_name (ref field) => {
458 let id: u8 = $tuple_variant_id;
460 field.write(writer)?;
467 impl ::util::ser::Readable for $st {
468 fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, ::ln::msgs::DecodeError> {
469 let id: u8 = ::util::ser::Readable::read(reader)?;
472 // Because read_tlv_fields creates a labeled loop, we cannot call it twice
473 // in the same function body. Instead, we define a closure and call it.
476 init_tlv_field_var!($field, $fieldty);
478 read_tlv_fields!(reader, {
479 $(($type, $field, $fieldty)),*
481 Ok($st::$variant_name {
483 $field: init_tlv_based_struct_field!($field, $fieldty)
489 $($tuple_variant_id => {
490 Ok($st::$tuple_variant_name(Readable::read(reader)?))
493 Err(DecodeError::UnknownRequiredFeature)?
505 use ln::msgs::DecodeError;
506 use util::ser::{Writeable, HighZeroBytesDroppedVarInt, VecWriter};
507 use bitcoin::secp256k1::PublicKey;
509 // The BOLT TLV test cases don't include any tests which use our "required-value" logic since
510 // the encoding layer in the BOLTs has no such concept, though it makes our macros easier to
511 // work with so they're baked into the decoder. Thus, we have a few additional tests below
512 fn tlv_reader(s: &[u8]) -> Result<(u64, u32, Option<u32>), DecodeError> {
513 let mut s = Cursor::new(s);
516 let mut c: Option<u32> = None;
517 decode_tlv_stream!(&mut s, {(2, a, required), (3, b, required), (4, c, option)});
522 fn tlv_v_short_read() {
523 // We only expect a u32 for type 3 (which we are given), but the L says its 8 bytes.
524 if let Err(DecodeError::ShortRead) = tlv_reader(&::hex::decode(
525 concat!("0100", "0208deadbeef1badbeef", "0308deadbeef")
531 fn tlv_types_out_of_order() {
532 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
533 concat!("0100", "0304deadbeef", "0208deadbeef1badbeef")
536 // ...even if its some field we don't understand
537 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
538 concat!("0208deadbeef1badbeef", "0100", "0304deadbeef")
544 fn tlv_req_type_missing_or_extra() {
545 // It's also bad if they included even fields we don't understand
546 if let Err(DecodeError::UnknownRequiredFeature) = tlv_reader(&::hex::decode(
547 concat!("0100", "0208deadbeef1badbeef", "0304deadbeef", "0600")
550 // ... or if they're missing fields we need
551 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
552 concat!("0100", "0208deadbeef1badbeef")
555 // ... even if that field is even
556 if let Err(DecodeError::InvalidValue) = tlv_reader(&::hex::decode(
557 concat!("0304deadbeef", "0500")
563 fn tlv_simple_good_cases() {
564 assert_eq!(tlv_reader(&::hex::decode(
565 concat!("0208deadbeef1badbeef", "03041bad1dea")
566 ).unwrap()[..]).unwrap(),
567 (0xdeadbeef1badbeef, 0x1bad1dea, None));
568 assert_eq!(tlv_reader(&::hex::decode(
569 concat!("0208deadbeef1badbeef", "03041bad1dea", "040401020304")
570 ).unwrap()[..]).unwrap(),
571 (0xdeadbeef1badbeef, 0x1bad1dea, Some(0x01020304)));
574 // BOLT TLV test cases
575 fn tlv_reader_n1(s: &[u8]) -> Result<(Option<HighZeroBytesDroppedVarInt<u64>>, Option<u64>, Option<(PublicKey, u64, u64)>, Option<u16>), DecodeError> {
576 let mut s = Cursor::new(s);
577 let mut tlv1: Option<HighZeroBytesDroppedVarInt<u64>> = None;
578 let mut tlv2: Option<u64> = None;
579 let mut tlv3: Option<(PublicKey, u64, u64)> = None;
580 let mut tlv4: Option<u16> = None;
581 decode_tlv_stream!(&mut s, {(1, tlv1, option), (2, tlv2, option), (3, tlv3, option), (254, tlv4, option)});
582 Ok((tlv1, tlv2, tlv3, tlv4))
586 fn bolt_tlv_bogus_stream() {
587 macro_rules! do_test {
588 ($stream: expr, $reason: ident) => {
589 if let Err(DecodeError::$reason) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
594 // TLVs from the BOLT test cases which should not decode as either n1 or n2
595 do_test!(concat!("fd01"), ShortRead);
596 do_test!(concat!("fd0001", "00"), InvalidValue);
597 do_test!(concat!("fd0101"), ShortRead);
598 do_test!(concat!("0f", "fd"), ShortRead);
599 do_test!(concat!("0f", "fd26"), ShortRead);
600 do_test!(concat!("0f", "fd2602"), ShortRead);
601 do_test!(concat!("0f", "fd0001", "00"), InvalidValue);
602 do_test!(concat!("0f", "fd0201", "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"), ShortRead);
604 do_test!(concat!("12", "00"), UnknownRequiredFeature);
605 do_test!(concat!("fd0102", "00"), UnknownRequiredFeature);
606 do_test!(concat!("fe01000002", "00"), UnknownRequiredFeature);
607 do_test!(concat!("ff0100000000000002", "00"), UnknownRequiredFeature);
611 fn bolt_tlv_bogus_n1_stream() {
612 macro_rules! do_test {
613 ($stream: expr, $reason: ident) => {
614 if let Err(DecodeError::$reason) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
619 // TLVs from the BOLT test cases which should not decode as n1
620 do_test!(concat!("01", "09", "ffffffffffffffffff"), InvalidValue);
621 do_test!(concat!("01", "01", "00"), InvalidValue);
622 do_test!(concat!("01", "02", "0001"), InvalidValue);
623 do_test!(concat!("01", "03", "000100"), InvalidValue);
624 do_test!(concat!("01", "04", "00010000"), InvalidValue);
625 do_test!(concat!("01", "05", "0001000000"), InvalidValue);
626 do_test!(concat!("01", "06", "000100000000"), InvalidValue);
627 do_test!(concat!("01", "07", "00010000000000"), InvalidValue);
628 do_test!(concat!("01", "08", "0001000000000000"), InvalidValue);
629 do_test!(concat!("02", "07", "01010101010101"), ShortRead);
630 do_test!(concat!("02", "09", "010101010101010101"), InvalidValue);
631 do_test!(concat!("03", "21", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb"), ShortRead);
632 do_test!(concat!("03", "29", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001"), ShortRead);
633 do_test!(concat!("03", "30", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb000000000000000100000000000001"), ShortRead);
634 do_test!(concat!("03", "31", "043da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002"), InvalidValue);
635 do_test!(concat!("03", "32", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb0000000000000001000000000000000001"), InvalidValue);
636 do_test!(concat!("fd00fe", "00"), ShortRead);
637 do_test!(concat!("fd00fe", "01", "01"), ShortRead);
638 do_test!(concat!("fd00fe", "03", "010101"), InvalidValue);
639 do_test!(concat!("00", "00"), UnknownRequiredFeature);
641 do_test!(concat!("02", "08", "0000000000000226", "01", "01", "2a"), InvalidValue);
642 do_test!(concat!("02", "08", "0000000000000231", "02", "08", "0000000000000451"), InvalidValue);
643 do_test!(concat!("1f", "00", "0f", "01", "2a"), InvalidValue);
644 do_test!(concat!("1f", "00", "1f", "01", "2a"), InvalidValue);
646 // The last BOLT test modified to not require creating a new decoder for one trivial test.
647 do_test!(concat!("ffffffffffffffffff", "00", "01", "00"), InvalidValue);
651 fn bolt_tlv_valid_n1_stream() {
652 macro_rules! do_test {
653 ($stream: expr, $tlv1: expr, $tlv2: expr, $tlv3: expr, $tlv4: expr) => {
654 if let Ok((tlv1, tlv2, tlv3, tlv4)) = tlv_reader_n1(&::hex::decode($stream).unwrap()[..]) {
655 assert_eq!(tlv1.map(|v| v.0), $tlv1);
656 assert_eq!(tlv2, $tlv2);
657 assert_eq!(tlv3, $tlv3);
658 assert_eq!(tlv4, $tlv4);
663 do_test!(concat!(""), None, None, None, None);
664 do_test!(concat!("21", "00"), None, None, None, None);
665 do_test!(concat!("fd0201", "00"), None, None, None, None);
666 do_test!(concat!("fd00fd", "00"), None, None, None, None);
667 do_test!(concat!("fd00ff", "00"), None, None, None, None);
668 do_test!(concat!("fe02000001", "00"), None, None, None, None);
669 do_test!(concat!("ff0200000000000001", "00"), None, None, None, None);
671 do_test!(concat!("01", "00"), Some(0), None, None, None);
672 do_test!(concat!("01", "01", "01"), Some(1), None, None, None);
673 do_test!(concat!("01", "02", "0100"), Some(256), None, None, None);
674 do_test!(concat!("01", "03", "010000"), Some(65536), None, None, None);
675 do_test!(concat!("01", "04", "01000000"), Some(16777216), None, None, None);
676 do_test!(concat!("01", "05", "0100000000"), Some(4294967296), None, None, None);
677 do_test!(concat!("01", "06", "010000000000"), Some(1099511627776), None, None, None);
678 do_test!(concat!("01", "07", "01000000000000"), Some(281474976710656), None, None, None);
679 do_test!(concat!("01", "08", "0100000000000000"), Some(72057594037927936), None, None, None);
680 do_test!(concat!("02", "08", "0000000000000226"), None, Some((0 << 30) | (0 << 5) | (550 << 0)), None, None);
681 do_test!(concat!("03", "31", "023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb00000000000000010000000000000002"),
683 PublicKey::from_slice(&::hex::decode("023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb").unwrap()[..]).unwrap(), 1, 2)),
685 do_test!(concat!("fd00fe", "02", "0226"), None, None, None, Some(550));
688 fn do_simple_test_tlv_write() -> Result<(), ::std::io::Error> {
689 let mut stream = VecWriter(Vec::new());
692 encode_varint_length_prefixed_tlv!(&mut stream, {(1, 1u8, required), (42, None::<u64>, option)});
693 assert_eq!(stream.0, ::hex::decode("03010101").unwrap());
696 encode_varint_length_prefixed_tlv!(&mut stream, {(1, Some(1u8), option)});
697 assert_eq!(stream.0, ::hex::decode("03010101").unwrap());
700 encode_varint_length_prefixed_tlv!(&mut stream, {(4, 0xabcdu16, required), (42, None::<u64>, option)});
701 assert_eq!(stream.0, ::hex::decode("040402abcd").unwrap());
704 encode_varint_length_prefixed_tlv!(&mut stream, {(42, None::<u64>, option), (0xff, 0xabcdu16, required)});
705 assert_eq!(stream.0, ::hex::decode("06fd00ff02abcd").unwrap());
708 encode_varint_length_prefixed_tlv!(&mut stream, {(0, 1u64, required), (42, None::<u64>, option), (0xff, HighZeroBytesDroppedVarInt(0u64), required)});
709 assert_eq!(stream.0, ::hex::decode("0e00080000000000000001fd00ff00").unwrap());
712 encode_varint_length_prefixed_tlv!(&mut stream, {(0, Some(1u64), option), (0xff, HighZeroBytesDroppedVarInt(0u64), required)});
713 assert_eq!(stream.0, ::hex::decode("0e00080000000000000001fd00ff00").unwrap());
719 fn simple_test_tlv_write() {
720 do_simple_test_tlv_write().unwrap();