c-lightning: A specification compliant Lightning Network implementation in C -> ported to work with CHIPS

c-lightning is a standard compliant implementation of the Lightning Network protocol. The Lightning Network is a scalability solution for Bitcoin, enabling secure and instant transfer of funds between any two parties for any amount.

For more information about the Lightning Network please refer to http://lightning.network.

Project Status

This implementation is still very much a work in progress. It can be used for testing, but it should not be used for real funds. We do our best to identify and fix problems, and implement missing features.

Any help testing the implementation, reporting bugs, or helping with outstanding issues is very welcome. Don't hesitate to reach out to us on IRC at #lightning-dev @ freenode.net, #c-lightning @ freenode.net, or on the implementation-specific mailing list c-lightning@lists.ozlabs.org, or on the Lightning Network-wide mailing list lightning-dev@lists.linuxfoundation.org.

Getting Started

<<<<<<< HEAD c-lightning currently only works on Linux (and possibly Mac OS with some tweaking), and requires a locally (or remotely) running bitcoind (version 0.15 or above) that is fully caught up with the network you're testing on. Pruning (prune=n option in bitcoin.conf) is not currently supported.

c-lightning currently only works on Linux (and possibly Mac OS with some tweaking), and requires a locally running chipsd that is fully caught up with the network you're testing on.

upstream/master

Installation

Please refer to the installation documentation for detailed instructions. For the impatient here's the gist of it for Ubuntu and Debian:

<<<<<<< HEAD sudo apt-get update sudo apt-get install -y
autoconf automake build-essential git libtool libgmp-dev
libsqlite3-dev python python3 net-tools zlib1g-dev git clone https://github.com/ElementsProject/lightning.git cd lightning ./configure make

Or if you like to throw docker into the mix, you can use the official docker image either directly or as a base layer for more complex images. The docker image is elementsproject/lightningd (from this Dockerfile). Image tags with -dev at the end are images built with DEVELOPER=1. If you build the image yourself, you can use the build arg DEVELOPER=1 to build c-lightning in developer mode.

It has the following environment variable:

• EXPOSE_TCP default to false, if true, use expose c-lightning RPC on port 9835. (Use this only for testing)

Here is an example of a docker-compose file with bitcoind and c-lightning on testnet which expose bitcoind's RPC interface on default ports 18332 and c-lightning API on port 9735:

version: "3"
services:
  bitcoind:
    image: nicolasdorier/docker-bitcoin:0.16.3
    container_name: bitcoind
    environment:
      BITCOIN_EXTRA_ARGS: |
        testnet=1
        whitelist=0.0.0.0/0
        server=1
        rpcuser=rpcuser
        rpcpassword=rpcpass
    expose:
      - "18332"
    ports:
      - "0.0.0.0:18333:18333"
    volumes:
      - "bitcoin_datadir:/data"

  clightning_bitcoin:
    image: elementsproject/lightningd
    container_name: lightningd
    command:
      - --bitcoin-rpcconnect=bitcoind
      - --bitcoin-rpcuser=rpcuser
      - --bitcoin-rpcpassword=rpcpass
      - --network=testnet
      - --alias=myawesomenode
      - --log-level=debug
    environment:
      EXPOSE_TCP: "true"
    expose:
      - "9735"
    ports:
      - "0.0.0.0:9735:9735"
    volumes:
      - "clightning_bitcoin_datadir:/root/.lightning"
      - "bitcoin_datadir:/etc/bitcoin"
    links:
      - bitcoind

volumes:
  bitcoin_datadir:
  clightning_bitcoin_datadir:
=======

sudo apt-get install -y autoconf git build-essential libtool libgmp-dev libsqlite3-dev python python3 git clone https://github.com/jl777/lightning cd lightning make

upstream/master

### Starting `lightningd`

In order to start `lightningd` you will need to have a local `chipsd` node running:

chipsd -daemon

Once `chipsd` has synchronized with the network, you can start `lightningd` with the following command:

    lightningd/lightningd --network=testnet --log-level=debug

### Listing all commands:
`cli/lightning-cli help` will print a table of the API and lists the
following commands

### Opening a channel on the Bitcoin testnet

First you need to transfer some funds to `lightningd` so that it can
open a channel:

    # Returns an address <address>
    cli/lightning-cli newaddr

# Returns a transaction id <txid>
chips-cli sendtoaddress <address> <amount>

# Retrieves the raw transaction <rawtx>
chips-cli getrawtransaction <txid>

If you don't have any testcoins you can get a few from a faucet such as
[TPs' testnet faucet][tps] or [Kiwi's testnet faucet][kiw].
You can send it directly to the `lightningd` address.

You may need to generate a p2sh-segwit address if the faucet does not support
bech32:

    # Return a p2sh-segwit address
    cli/lightning-cli newaddr p2sh-segwit

[tps]: http://tpfaucet.appspot.com/
[kiw]: https://testnet.manu.backend.hamburg/faucet

Confirm `lightningd` got funds by:

    # Returns an array of on-chain funds.
    cli/lightning-cli listfunds

Once `lightningd` has funds, we can connect to a node and open a channel.
Let's assume the **remote** node is accepting connections at `<ip>`
(and optional `<port>`, if not 9735) and has the node ID `<node_id>`:

cli/lightning-cli connect <node_id> [] cli/lightning-cli fundchannel <node_id> <amount_in_satoshis>

This opens a connection and, on top of that connection, then opens
a channel.
The funding transaction needs 1 confirmation in order for the channel
to be usable, and 6 to be broadcast for others to use.
You can check the status of the channel using `cli/lightning-cli
listpeers`, which after 3 confirmations (1 on testnet) should say
that `state` is `CHANNELD_NORMAL`; after 6 confirmations you can use
`cli/lightning-cli listchannels` to verify that the `public` field is now
`true`.

### Different states
* `OPENINGD` means that `lightning_openingd` is negotiating channel
  opening.
* `CHANNELD_AWAITING_LOCKIN` means that `lightning_channeld` is waiting
  until the minimum number of confirmation on the channel funding
  transaction.
* `CHANNELD_NORMAL` means your channel is operating normally.
* `CHANNELD_SHUTTING_DOWN` means one or both sides have asked to shut
  down the channel, and we're waiting for existing HTLCs to clear.
* `CLOSINGD_SIGEXCHANGE` means we're trying to negotiate the fee for
  the mutual close transaction.
* `CLOSINGD_COMPLETE` means we've broadcast our mutual close
  transaction (which spends the funding transaction) , but haven't seen
  it in a block yet.
* `FUNDING_SPEND_SEEN` means we've seen the funding transaction spent.
* `ONCHAIN` means that the `lightning_onchaind` is tracking the onchain
  closing of the channel.
* `AWAITING_UNILATERAL` means that we're waiting for a unilateral close to hit the blockchain.

All these states have more information about what's going on in the
`status` field in `listpeers`.

### Sending and receiving payments

Payments in Lightning are invoice based.
The recipient creates an invoice with the expected `<amount>` in
millisatoshi (or `"any"` for a donation), a unique `<label>` and a
`<description>` the payer will see:

cli/lightning-cli invoice

This returns some internal details, and a standard invoice
string called `bolt11` (named after the [BOLT #11 lightning
spec][BOLT11]).

[BOLT11]: https://github.com/lightningnetwork/lightning-rfc/blob/master/11-payment-encoding.md

The sender can feed this `bolt11` string to the `decodepay` command to
see what it is, and pay it simply using the `pay` command:

cli/lightning-cli pay

Note that there are lower-level interfaces (and more options to these
interfaces) for more sophisticated use.

## Configuration File
lightningd can be configured either by passing options via the command
line, or via a configuration file.
Command line options will always override the values in the configuration
file.

To use a configuration file, create a file named "config" within your
".lightning" directory. Usually, this will be ~/.lightning/config

The sender needs to compute a route to the recipient, and use that route to actually send the payment:

Configuration options are set using a key=value pair on each line of
the file, for example:

alias=SLEEPYDRAGON rgb=008000 port=9735 network=testnet

For a full list of possible lightningd configuration options, run:

lightningd/lightningd --help

## Further information

### Developers
Developers wishing to contribute should start with the developer guide [here](doc/HACKING.md). 


### JSON RPC
JSON-RPC interface is documented in the following manual pages:

* [invoice](doc/lightning-invoice.7.txt)
* [listinvoices](doc/lightning-listinvoices.7.txt)
* [waitinvoice](doc/lightning-waitinvoice.7.txt)
* [waitanyinvoice](doc/lightning-waitanyinvoice.7.txt)
* [delinvoice](doc/lightning-delinvoice.7.txt)
* [getroute](doc/lightning-getroute.7.txt)
* [sendpay](doc/lightning-sendpay.7.txt)
* [pay](doc/lightning-pay.7.txt)
* [listpayments](doc/lightning-listpayments.7.txt)
* [decodepay](doc/lightning-decodepay.7.txt)

For simple access to the JSON-RPC interface you can use the
`cli/lightning-cli` tool, or the [python API client](contrib/pylightning).