lbcd/wire
2020-12-02 12:10:43 +02:00
..
testdata wire: Add large tx deserialize benchmark. (#678) 2016-04-25 16:51:27 -05:00
bench_test.go BIP0143+txscript: add segwit sighash, signing, and HashCache integration 2017-08-13 23:17:40 -05:00
blockheader.go wire: typo in BlockHeader PrevBlock comment 2018-02-13 13:04:12 -06:00
blockheader_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
common.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
common_test.go build: clean linter warnings 2020-05-13 08:58:39 -04:00
doc.go wire: implement feefilter message (bip0133) 2016-10-17 13:33:16 -04:00
error.go Relicense to the btcsuite developers. 2015-05-01 12:00:56 -05:00
fakemessage_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
fixedIO_test.go simplify s[:] to s where s is a slice 2020-11-20 15:43:12 -05:00
invvect.go BIP0144+wire: introduce new segregated witness inventory types 2017-08-13 23:17:40 -05:00
invvect_test.go chainhash: Abstract hash logic to new package. (#729) 2016-08-08 14:04:33 -05:00
message.go Add support for receiving sendaddrv2 message from a peer 2020-12-02 12:10:43 +02:00
message_test.go wire: remove instances of the extended gcs filter 2018-07-06 16:15:25 -07:00
msgaddr.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgaddr_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgalert.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgalert_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgblock.go BIP0144+wire: implement witness encoding/decoding for transactions 2017-08-13 23:17:40 -05:00
msgblock_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgcfcheckpt.go wire/msgcfcheckpt: add sanity check for cf checkpoint parsing 2018-08-23 22:55:20 -07:00
msgcfheaders.go multi: fix linter warnings 2018-05-23 16:46:15 -07:00
msgcfilter.go wire: remove the extended filter 2018-07-06 16:15:23 -07:00
msgfeefilter.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfeefilter_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilteradd.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilteradd_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilterclear.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilterclear_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilterload.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgfilterload_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetaddr.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetaddr_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetblocks.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetblocks_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetcfcheckpt.go multi: fix linter warnings 2018-05-23 16:46:15 -07:00
msggetcfheaders.go multi: fix linter warnings 2018-05-23 16:46:15 -07:00
msggetcfilters.go multi: fix linter warnings 2018-05-23 16:46:15 -07:00
msggetdata.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetdata_test.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
msggetheaders.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msggetheaders_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgheaders.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgheaders_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msginv.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msginv_test.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
msgmempool.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgmempool_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgmerkleblock.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgmerkleblock_test.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
msgnotfound.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgnotfound_test.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
msgping.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgping_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgpong.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgpong_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgreject.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgreject_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgsendaddrv2.go Add support for receiving sendaddrv2 message from a peer 2020-12-02 12:10:43 +02:00
msgsendheaders.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgsendheaders_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgtx.go wire: add proper types for flag field and improve docs 2020-09-14 09:50:13 -04:00
msgtx_test.go wire: add proper types for flag field and improve docs 2020-09-14 09:50:13 -04:00
msgverack.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgverack_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgversion.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
msgversion_test.go BIP0144+wire: add a MessageEncoding variant for serialization/deserialization 2017-08-13 23:17:40 -05:00
netaddress.go wire: Treat NetAddress more like immutable 2016-12-06 20:48:02 +01:00
netaddress_test.go wire: Change NewNetAddress to accept a *net.TCPConn. 2016-11-04 11:06:07 -05:00
protocol.go wire: update service bits for xthin, bit 5, cfilters, and segwit2x 2018-05-23 16:46:15 -07:00
protocol_test.go wire: update service bits for xthin, bit 5, cfilters, and segwit2x 2018-05-23 16:46:15 -07:00
README.md wire: update compact filter messages to match wire.Message interface 2018-05-23 16:46:15 -07:00

wire

Build Status ISC License GoDoc

Package wire implements the bitcoin wire protocol. A comprehensive suite of tests with 100% test coverage is provided to ensure proper functionality.

There is an associated blog post about the release of this package here.

This package has intentionally been designed so it can be used as a standalone package for any projects needing to interface with bitcoin peers at the wire protocol level.

Installation and Updating

$ go get -u github.com/btcsuite/btcd/wire

Bitcoin Message Overview

The bitcoin protocol consists of exchanging messages between peers. Each message is preceded by a header which identifies information about it such as which bitcoin network it is a part of, its type, how big it is, and a checksum to verify validity. All encoding and decoding of message headers is handled by this package.

To accomplish this, there is a generic interface for bitcoin messages named Message which allows messages of any type to be read, written, or passed around through channels, functions, etc. In addition, concrete implementations of most of the currently supported bitcoin messages are provided. For these supported messages, all of the details of marshalling and unmarshalling to and from the wire using bitcoin encoding are handled so the caller doesn't have to concern themselves with the specifics.

Reading Messages Example

In order to unmarshal bitcoin messages from the wire, use the ReadMessage function. It accepts any io.Reader, but typically this will be a net.Conn to a remote node running a bitcoin peer. Example syntax is:

	// Use the most recent protocol version supported by the package and the
	// main bitcoin network.
	pver := wire.ProtocolVersion
	btcnet := wire.MainNet

	// Reads and validates the next bitcoin message from conn using the
	// protocol version pver and the bitcoin network btcnet.  The returns
	// are a wire.Message, a []byte which contains the unmarshalled
	// raw payload, and a possible error.
	msg, rawPayload, err := wire.ReadMessage(conn, pver, btcnet)
	if err != nil {
		// Log and handle the error
	}

See the package documentation for details on determining the message type.

Writing Messages Example

In order to marshal bitcoin messages to the wire, use the WriteMessage function. It accepts any io.Writer, but typically this will be a net.Conn to a remote node running a bitcoin peer. Example syntax to request addresses from a remote peer is:

	// Use the most recent protocol version supported by the package and the
	// main bitcoin network.
	pver := wire.ProtocolVersion
	btcnet := wire.MainNet

	// Create a new getaddr bitcoin message.
	msg := wire.NewMsgGetAddr()

	// Writes a bitcoin message msg to conn using the protocol version
	// pver, and the bitcoin network btcnet.  The return is a possible
	// error.
	err := wire.WriteMessage(conn, msg, pver, btcnet)
	if err != nil {
		// Log and handle the error
	}

GPG Verification Key

All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from the btcsuite developers. To verify the signature perform the following:

  • Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt

  • Import the public key into your GPG keyring:

    gpg --import GIT-GPG-KEY-conformal.txt
    
  • Verify the release tag with the following command where TAG_NAME is a placeholder for the specific tag:

    git tag -v TAG_NAME
    

License

Package wire is licensed under the copyfree ISC License.