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peer: Rework version negotiation.
This modifies the negotiation logic to ensure the callback has the
opportunity to see the message before the peer is disconnected and
improves the error handling when reading the remote version message.

It also has the side effect of ensuring the protocol version is
negotiated before sending reject messages with the exception of the
first message not being a version message since negotiation is not
possible in that case.

This is being changed because it is useful for the server to see the
message regardless in order to have the opportunity to things such as
update the address manager and reject peers that don't have desired
services.
2018-06-04 15:35:54 -05:00
addrmgr addrmgr: Fix race in save peers. 2018-06-04 12:08:18 -05:00
blockchain blockchain: Improve spend journal tests. 2018-06-04 10:42:38 -05:00
certgen multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
chaincfg chaincfg: Refine vgo deps. 2018-05-25 18:00:05 -05:00
cmd multi: Return fork len from ProcessBlock. 2018-05-27 20:20:43 -05:00
connmgr multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
database multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
dcrec dcrec: add Pubkey func to secp256k1 and edwards elliptic curves. 2018-05-18 13:45:02 +00:00
dcrjson multi: move extension commands into associated normal command files. 2018-06-03 12:04:20 -05:00
dcrutil multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
docs docs: Update txaccepted method in json_rpc_api.md. 2018-05-31 11:09:23 -05:00
gcs multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
hdkeychain multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
limits docs: document packages and fix typo 2018-01-08 16:04:45 -06:00
mempool policy: Lower default relay fee to 0.0001/kB. 2018-05-26 09:45:38 -05:00
mining multi: Define vgo modules. 2018-05-25 15:38:16 -05:00
peer peer: Rework version negotiation. 2018-06-04 15:35:54 -05:00
release Add example service files. 2017-03-23 02:07:08 -05:00
rpcclient multi: move extension commands into associated normal command files. 2018-06-03 12:04:20 -05:00
rpctest multi: use secp256k1 types and fields directly. 2018-05-17 00:46:57 +00:00
sampleconfig policy: Lower default relay fee to 0.0001/kB. 2018-05-26 09:45:38 -05:00
txscript txscript: Cleanup code for the substr opcode. 2018-05-25 20:28:57 -05:00
wire wire: Refine vgo deps. 2018-05-25 17:06:49 -05:00
.dockerignore Run testing and linting in a Dockerfile. 2017-05-30 11:39:19 -04:00
.gitignore Improve gitignore. 2017-10-11 14:52:00 -05:00
.travis.yml travis: test in docker container 2018-02-18 10:27:18 -06:00
blocklogger.go multi: Replace btclog with slog. 2018-05-23 14:22:10 -05:00
blockmanager.go multi: No winning ticket ntfns for big reorg depth. 2018-05-29 11:16:09 -05:00
CHANGES multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
config.go multi: Replace btclog with slog. 2018-05-23 14:22:10 -05:00
cpuminer.go cpuminer: Use header for extra nonce. 2018-03-05 12:59:32 -06:00
dcrd.go main: Correct mem profile error message. 2018-05-03 08:17:12 +08:00
doc.go multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
Dockerfile-1.9 travis: test in docker container 2018-02-18 10:27:18 -06:00
Dockerfile-1.10 travis: test in docker container 2018-02-18 10:27:18 -06:00
go.mod build: Update some vgo dependencies to use tags. 2018-05-24 11:18:33 -05:00
go.modverify build: Update some vgo dependencies to use tags. 2018-05-24 11:18:33 -05:00
Gopkg.lock build: Update some vgo dependencies to use tags. 2018-05-24 11:18:33 -05:00
Gopkg.toml build: Update some vgo dependencies to use tags. 2018-05-24 11:18:33 -05:00
ipc.go travis: add ineffassign linter 2017-12-01 09:14:04 -05:00
LICENSE multi: Add initial committed filter (CF) support 2018-03-30 13:52:12 -04:00
log.go multi: Replace btclog with slog. 2018-05-23 14:22:10 -05:00
mining_test.go mining_test: add edge conditions from btcd. 2017-08-31 00:28:36 -05:00
mining.go blockchain: CheckConnectBlockTemplate with tests. 2018-05-03 13:53:24 -05:00
miningerror.go blockchain: Rework to use new db interface. 2016-08-18 15:42:18 -04:00
params.go multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
README.md Adjust README.md for new Go version 2018-03-01 20:15:08 -06:00
rpcserver_test.go rpctest: Gate rpctest-based behind a build tag. 2017-07-26 12:43:26 -05:00
rpcserver.go multi: Refactor and optimize inv discovery. 2018-06-01 13:20:04 -05:00
rpcserverhelp_test.go blockchain: Rework to use new db interface. 2016-08-18 15:42:18 -04:00
rpcserverhelp.go dcrjson: Add Expiry field to CreateRawTransactionCmd 2018-05-02 20:49:03 -05:00
rpcwebsocket.go rpc: Use upstream gorilla/websocket. 2018-05-23 19:35:36 -05:00
run_tests.sh travis: test in docker container 2018-02-18 10:27:18 -06:00
server.go peer: Rework version negotiation. 2018-06-04 15:35:54 -05:00
service_windows.go multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
signal.go dcrd: Simplify shutdown signal handling logic sync. 2016-11-18 12:06:55 -06:00
signalsigterm.go Add pipes for parent process IPC. (#311) 2016-08-31 10:45:16 -04:00
upnp.go multi: Error descriptions are in lower case. 2017-09-08 18:03:59 +02:00
version.go release: Bump for v1.2.0. 2018-03-07 13:19:37 -06:00

dcrd

Build Status ISC License GoDoc

dcrd is a Decred full node implementation written in Go (golang).

This acts as a chain daemon for the Decred cryptocurrency. dcrd maintains the entire past transactional ledger of Decred and allows relaying of transactions to other Decred nodes across the world. To read more about Decred please see the project documentation.

Note: To send or receive funds and join Proof-of-Stake mining, you will also need dcrwallet.

This project is currently under active development and is in a Beta state. It is extremely stable and has been in production use since February 2016.

It is forked from btcd which is a bitcoin full node implementation written in Go. btcd is a ongoing project under active development. Because dcrd is constantly synced with btcd codebase, it will get the benefit of btcd's ongoing upgrades to peer and connection handling, database optimization and other blockchain related technology improvements.

Requirements

Go 1.9 or newer.

Getting Started

  • dcrd (and utilities) will now be installed in either $GOROOT/bin or $GOPATH/bin depending on your configuration. If you did not already add the bin directory to your system path during Go installation, we recommend you do so now.

Updating

Windows

Install a newer MSI

Linux/BSD/MacOSX/POSIX - Build from Source

  • Dep

    Dep is used to manage project dependencies and provide reproducible builds. To install:

    go get -u github.com/golang/dep/cmd/dep

Unfortunately, the use of dep prevents a handy tool such as go get from automatically downloading, building, and installing the source in a single command. Instead, the latest project and dependency sources must be first obtained manually with git and dep, and then go is used to build and install the project.

Getting the source:

For a first time installation, the project and dependency sources can be obtained manually with git and dep (create directories as needed):

git clone https://github.com/decred/dcrd $GOPATH/src/github.com/decred/dcrd
cd $GOPATH/src/github.com/decred/dcrd
dep ensure
go install . ./cmd/...

To update an existing source tree, pull the latest changes and install the matching dependencies:

cd $GOPATH/src/github.com/decred/dcrd
git pull
dep ensure
go install . ./cmd/...

For more information about Decred and how to set up your software please go to our docs page at docs.decred.org.

Docker

All tests and linters may be run in a docker container using the script run_tests.sh. This script defaults to using the current supported version of go. You can run it with the major version of Go you would like to use as the only arguement to test a previous on a previous version of Go (generally Decred supports the current version of Go and the previous one).

./run_tests.sh 1.9

To run the tests locally without docker:

./run_tests.sh local

Contact

If you have any further questions you can find us at:

  • irc.freenode.net (channel #decred)
  • webchat
  • forum.decred.org
  • decred.slack.com

Issue Tracker

The integrated github issue tracker is used for this project.

Documentation

The documentation is a work-in-progress. It is located in the docs folder.

License

dcrd is licensed under the copyfree ISC License.