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Olaoluwa Osuntokun 5301da790c
routing: fix path finding, bug use the proper policy during path finding
This commit fixes an lingering bug within the path finding logic of the
router. Previously we used the edge policy directly attached to the
outgoing channel of the node we were traversing to calculate the fees
and time lock information. This is incorrect, as we instead should be
using the policy of the *connecting* node as we’ll need to pay for
transit as they dictate.

To remedy this, we now grab the incoming+outgoing edges and use those
accordingly when building the initial path.
2017-08-22 00:53:15 -07:00
autopilot autopilot: update graph.go to match recent API changes 2017-08-22 00:52:31 -07:00
brontide brontide: add a test case to exercise all BOLT-0008 test vectors 2017-08-01 17:18:05 -07:00
chainntnfs chainntnfs: fix a typo 2017-08-10 21:15:38 -07:00
channeldb channeldb: update test to match recent API changes 2017-08-22 00:52:28 -07:00
cmd/lncli lncli: add support for macaroons 2017-08-17 19:20:41 -07:00
contrib contrib: add basic bash completion for lncli 2017-01-29 18:12:53 -08:00
discovery discovery: update initial graph synchronization to recent API changes 2017-08-22 00:53:09 -07:00
docker Remove characters from docker guide that break utf-8 encoding 2017-08-14 17:51:41 -07:00
docs docs: State example gRPC assumptions, add TLS grpc instructions 2017-08-14 17:51:41 -07:00
htlcswitch Htlcswitch: switch all accounting and forwarding decisions to use mSAT's 2017-08-22 00:53:04 -07:00
lnrpc lnrpc: Add descriptions and lncli mappings to rpc.proto 2017-08-14 17:53:19 -07:00
lnwallet lnwallet: update channel reservation flow to use milli-satoshis 2017-08-22 00:52:53 -07:00
lnwire lnwire: update the ChannelAnnouncement message to match BOLT-0007 2017-08-22 00:52:07 -07:00
macaroons macaroons: expand doc strings and comments within package 2017-08-22 00:52:48 -07:00
routing routing: fix path finding, bug use the proper policy during path finding 2017-08-22 00:53:15 -07:00
shachain multi: run all test instances in parallel 2017-06-17 01:00:07 +02:00
zpay32 multi: run all test instances in parallel 2017-06-17 01:00:07 +02:00
.gitignore git: add .DS_Store to .gitignore, remove obsolete entries 2017-05-04 17:39:15 -07:00
.travis.yml build: create parallel travis builds to isolate race condition tests 2017-07-04 16:05:22 -07:00
breacharbiter.go breacharbiter: convert settled balance from mSAT to SAT 2017-08-22 00:52:34 -07:00
chainregistry.go chain: set default fees to min possible 2017-08-22 00:52:36 -07:00
config.go main: integrate macaroons into config, startup, and RPC server 2017-08-17 19:20:41 -07:00
doc.go add some daemon related skeleton files 2015-12-26 00:09:17 -06:00
features.go features: add a new feature bit for recent changes 2017-07-30 20:27:56 -07:00
fundingmanager_test.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
fundingmanager.go funding: populate ChainHash in announcement messages, update signing 2017-08-22 00:53:01 -07:00
glide.lock macaroons: add macaroons package and update glide 2017-08-17 19:20:41 -07:00
glide.yaml macaroons: add macaroons package and update glide 2017-08-17 19:20:41 -07:00
gotest.sh build: create parallel travis builds to isolate race condition tests 2017-07-04 16:05:22 -07:00
invoiceregistry.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
LICENSE add copyright, license and discouragement in readme 2016-01-16 00:13:11 -08:00
lnd_test.go test: reposition context creation and extend TLS timeout 2017-08-19 16:42:33 -07:00
lnd.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
log.go log: add logger for the autopilot package 2017-08-10 21:39:47 -07:00
mock.go peer: add channel close fee negotiation 2017-08-11 12:10:32 +02:00
networktest_test.go netharness: remove test for the node restart method 2016-11-16 12:46:45 -08:00
networktest.go test: reposition context creation and extend TLS timeout 2017-08-19 16:42:33 -07:00
nodesigner.go nodesigner: make fully copy of key to avoid mutation 2017-08-04 18:27:21 -07:00
params.go config: add regtest support to lnd 2017-07-11 16:54:43 -07:00
peer_test.go peer: add channel close fee negotiation 2017-08-11 12:10:32 +02:00
peer.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
pilot.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
README.md BOLT's -> BOLTs 2017-08-14 17:53:52 -07:00
release.sh build: add release script 2017-01-12 18:30:47 -08:00
rpcserver.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
server.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
signal.go lnrpc+rpc+lnd: add new Stop command for gracefully shutting down lnd 2017-05-11 14:55:56 -07:00
test_utils.go lnd+rpc: update RPC responses to convert mSAT to SAT 2017-08-22 00:52:56 -07:00
utxonursery_test.go test: add +build !rpctest to tests files in main package 2017-08-10 21:59:23 -07:00
utxonursery.go utxonursery: update serialization, API usage for recent SignDescriptor changes 2017-07-30 17:52:00 -07:00
version.go lnd: bump version to 0.2.1-alpha 2017-04-07 18:10:45 +02:00

Lightning Network Daemon

Build Status MIT licensed Irc Godoc Coverage Status

The Lightning Network Daemon (lnd) - is a complete implementation of a Lightning Network node and currently deployed on testnet4 - the Bitcoin Test Network. It utilizes an upcoming upgrade to Bitcoin: Segregated Witness (segwit). The project's codebase uses the btcsuite set of Bitcoin libraries, and is currently dependant on btcd. In the current state lnd is capable of:

  • creating channels
  • closing channels
  • completely managing all channel states (including the exceptional ones!)
  • maintaining a fully authenticated+validated channel graph
  • performing path finding within the network, passively forwarding incoming payments
  • sending outgoing onion-encrypted payments through the network

Lightning Network Specification Compliance

lnd doesn't yet fully conform to the Lightning Network specification (BOLTs). BOLT stands for: Basic of Lightning Technologies. The specifications are currently being drafted by several groups of implementers based around the world including the developers of lnd. The set of specification documents as well as our implementation of the specification are still a work-in-progress. With that said, lnd the current status of lnd's BOLT compliance is:

  • BOLT 1: Base Protocol
    • lnd currently utilizes a distinct wire format which was created before the emgergence of the current draft of BOLT specifications. We don't have an init message, but we do have analogues to all the other defined message types.
  • BOLT 2: Peer Protocol for Channel Management
    • lnd implements all the functionality defined within the document, however we currently use a different set of wire messages. Additionally,lnd uses a distinct commitment update state-machine and doesn't yet support dynamically updating commitment fees.
  • BOLT 3: Bitcoin Transaction and Script Formats
    • lnd currently uses a commitment design from a prior iteration of the protocol. Revocation secret generation is handled by elkrem and our scripts are slightly different.
  • BOLT 4: Onion Routing Protocol
  • BOLT 5: Recommendations for On-chain Transaction Handling
  • BOLT 7: P2P Node and Channel Discovery
  • BOLT 8: Encrypted and Authenticated Transport

Installation

In order to build from source, please see the installation instructions.

IRC

  • irc.freenode.net
  • channel #lnd
  • webchat

Further reading