Commit Graph

133 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
31e5466692
lnd: introduce the fundingManager
This commit introduces the fundingManger which is used as a bridge
between the wallet’s internal ‘ChannelReservation’ workflow, and the
wire protocol’s funding messages.

 The funding manger is responsible for progressing the workflow, and
communicating any errors generated during the workflow back to the
source peer.
2016-06-21 13:13:49 -07:00
Olaoluwa Osuntokun
25577b6cd5
lnwallet: add test cases for single funder workflow
This commit adds additional test cases to test both cases (initiator vs
responder) for a single funder channel workflow. Additionally, the
previous dual funder tests have been extended in order to detect proper
funding channel broadcast, and the ChainNotifier’s role in notifying
upstream callers that a funding transaction has been embedded in the
chain at a sufficient depth.

At this point the tests certainly need to be cleaned up. bobNode should
be replaced with a second instance of the wallet modeling a remote
peer.
2016-06-21 13:13:45 -07:00
Olaoluwa Osuntokun
3a14fe8ba5
lnwallet: add support for single funder workflow
This commit modifies the existing workflow to add additional paths to
be used when on the responding side of a single funder workflow.

Additionally, several bugs encountered within the existing dual funder
workflow logic have been fixed, and modified to account for the wallet
being on the igniting side of a single funder workflow.
2016-06-21 13:13:41 -07:00
Olaoluwa Osuntokun
4a6a2d6cd4
lnwallet: correct inputs scripts for nested P2SH spend
The previous logic incorrectly assumed the returned address was already
a p2wkh address. Instead, a p2sh address was returned. So we now
correctly craft both the sigScript and witness stack for a nested p2sh
spend.
2016-06-21 13:13:33 -07:00
Olaoluwa Osuntokun
d52955b146
lnwallet: extract coin selection to distinct method
This is required since for single funder channels, we don’t contribute
any funds so we don’t need to select any change or coins for input into
the funding transaction.
2016-06-21 13:13:29 -07:00
Olaoluwa Osuntokun
e62fc414cb
lnwallet: add single funder workflow to ChannelReservation
This commit adds 3 methods to lnwallet.ChannelReservation intended to
facilitating a single funder channel workflow between two nodes. A
single funder workflow is characterized as the initiator committing all
the funds to a channel, with the responder only providing public keys,
and a revocation hash.

The workflow remains the same for the initiator of the funding
transaction, however for the responder, the following methods are
instead called in order:
  * .ProcessSingleConribution()
  * .CompleteSingleContribution()
  * .FinalizeReservation()

These methods are required for the responder as they are never able to
construct the full funding transaction, and only receive the out point
of the funding transaction once available.
2016-06-21 13:13:26 -07:00
Olaoluwa Osuntokun
45236fa092
lnwallet: implement cooperative closure for LightningChannel
A cooperative closure of a LightningChannel proceeds in two steps.
First, the party who wishes to close the channel sends a signature for
the closing transaction. Next, the responder reconstructs the closing
transaction identically as the initiator did using a canonical
input/output ordering, and the currently settled balance within the
channel. At this point, the responder then broadcasts the closure
transaction. It is the responsibility of the initiator to watch for
this transaction broadcast within the network to clean up any resources
they committed to the active channel.
2016-06-21 13:13:22 -07:00
Olaoluwa Osuntokun
27e6839060
lnwallet: publicly export constructor for LightningChannel 2016-06-21 13:13:18 -07:00
Olaoluwa Osuntokun
507520cda9
lnwallet: move channelState from channeldb to channel.go 2016-06-21 13:13:14 -07:00
Olaoluwa Osuntokun
fcff17c336
multi: change all imports to roasbeef's forks
This commit will allow the general public to build lnd without jumping
through hoops setting up their local git branches nicely with all of
our forks.
2016-05-15 17:22:37 +03:00
Olaoluwa Osuntokun
c6eedafb9a
lnwallet: update reservation workflow to be segwitty
Only nested p2sh or pure witness outputs are used when selecting coins
for inputs to a funding transaction.

The funding transaction output now uses p2wsh rather than regular p2sh.

All tests have been updated accordingly.
2016-05-03 20:06:58 -07:00
Olaoluwa Osuntokun
4b4c0f73b0
lnwallet: add ListUnspentWitness for funding tx coin selection 2016-05-03 20:06:49 -07:00
Olaoluwa Osuntokun
0e74672797
lnwallet: use InputScripts struct within ChannelReservation
This allows the reservation workflow to support pure witness program
outputs, as well as witness programs nested within p2sh.
2016-05-03 20:06:44 -07:00
Olaoluwa Osuntokun
eeb2887fe9
lnwallet: segwit-ify all scripts and signing utils 2016-05-03 20:06:39 -07:00
Olaoluwa Osuntokun
163eb8dcb8
lnwallet: remove FundingType enum
Removing as segwit is now the path forward.
2016-05-03 20:06:30 -07:00
Tadge Dryja
71231c477c make imports lowercase 2016-04-30 20:24:57 -07:00
Olaoluwa Osuntokun
1a96e4f7a6 lnwallet: default to p2wkh address for generated change+delivery addresses 2016-04-24 20:27:56 -07:00
Olaoluwa Osuntokun
0e607c1939 lnwallet: during shutdown properly wait for all goroutines to exit 2016-04-24 12:39:43 -07:00
Olaoluwa Osuntokun
1e35018e89 lnwallet: fix compile errors against btcd's segwit branch 2016-04-12 21:37:08 -07:00
Olaoluwa Osuntokun
f9a8dcbc9c lnwallet: add ListUnspentWitness to WalletController
This method has been added in order to allow lnd to collect eligible
unspent witness programs outputs from the wallet controller for use as
inputs to the funding transaction.

Additionally, the change address functions now also specify whether the
generated change address should be payable to a witness program or not.
2016-04-12 21:36:41 -07:00
Olaoluwa Osuntokun
10d52611cd lnwallet: introduce WalletController interface as a "base wallet"
The WalletController will serve as a layer of separation between “base”
Bitcoin wallet logic, and the higher level Lightning Network logic. As
a result LightningWallet will no behave as an overly wallet, relying on
the lower wallet for basic services such as new address, signing etc.

Within this higher level lies the awareness of channel types, chain
monitoring, HTLCs, and so on.
2016-03-24 16:19:57 -07:00
Olaoluwa Osuntokun
7420503c7a lnwallet: publicly export WaddrmgrEncryptorDecryptor 2016-03-24 14:32:44 -07:00
Olaoluwa Osuntokun
082a8a34e3 lnwallet: update tests and workflow to new OpenChannel struct 2016-03-24 00:01:35 -07:00
Olaoluwa Osuntokun
983294c444 lnwallet: set OpenChannel's internal db pointer 2016-03-24 00:01:17 -07:00
Olaoluwa Osuntokun
4b16763f4d lnwallet: update channel.go to new OpenChannel fields
Simply to compile, channel.go will be replaced with lnstate soon
enough.
2016-03-24 00:00:59 -07:00
Olaoluwa Osuntokun
fe6d71e95e lnwallet: accept channeldb as a param in constructor
lnwallet is no longer responsible for creating/opening channeldb. The
call is now expected to do so.
2016-03-22 18:48:18 -07:00
Olaoluwa Osuntokun
8feb86c4aa multi: create lnd's logging infrastructure 2016-03-22 18:43:10 -07:00
mkl
e07086a523 Integrate basic configuration functionality 2016-03-22 13:28:56 -07:00
Olaoluwa Osuntokun
1944003fde lnwallet: update to use new btcdnotify.NewBtcdNotifier API 2016-02-26 17:38:31 -08:00
Olaoluwa Osuntokun
25c1b7a491 lnwallet: update chainNotifier assignment to new BtcdNotifier constructor 2016-02-26 17:38:31 -08:00
Tadge Dryja
0d3639435f can sync with segnet in hard mode
lots of changes but they seem to work
2016-02-15 22:13:17 -08:00
Olaoluwa Osuntokun
ab16933575 lnwallet: commit tx should have final sequence num 2016-02-05 20:24:32 -08:00
Olaoluwa Osuntokun
81a4887d11 lnwallet: move lockTimeToSequence to script_utils.go 2016-02-05 20:24:17 -08:00
Olaoluwa Osuntokun
fa05ee9a22 lnwallet: move pubKey comparison for funding output spend into spendMultiSig func
* This change makes the spendMultiSig function testable independent of
the reservation workflow.
2016-02-05 12:33:22 -08:00
Olaoluwa Osuntokun
4632894562 lnwallet: move teardown of rpctest before setup to ensure proper cleanup
* Previously, if the call to SetUp(..) returned an error, then the test
harness would fail to stop the running bcd process, and clean up the
test directories. This would cause any subsequent tests to fail. This
commit remedies this scenario.
2016-02-05 12:32:23 -08:00
Olaoluwa Osuntokun
1a8ae48807 lnwallet: point rpctest at my in-progress fork+branch
Fixes compilation issues for those not using my laptop :)
2016-02-03 12:05:53 -08:00
Olaoluwa Osuntokun
daeecd5fc0 lnwallet: nuke most of setup.go, no longer needed w/ wallet.Loader 2016-02-03 12:01:45 -08:00
Olaoluwa Osuntokun
b3cdc6167f lnwallet: switch over to using btcwallet's new Loader type
Allows us to remove a lot of duplicated code pertaining to wallet
setup. We also gain hooks into the wallet to trigger callbacks once the
wallet is created/opened.
2016-02-03 12:01:45 -08:00
Olaoluwa Osuntokun
92c14c99c3 lnwallet: update tests to utilize the in-progress btcsuite/btcd/rpctest package
Instead of creating “fake” utxos for bob, and alice. We now employ a
dedicated mining node to hand out utxos, and generate blocks with hand
picked transactions.
2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
7bebefbd8f lnwallet: fix script bug, ensure sigScript is set before verification 2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
74ee5334f4 lnwallet: allow configurable net param for wallet create/open 2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
98bbd314a7 lnwallet: add active Bitcoin network to config 2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
80ce49a883 lnwallet: update btcwallet and chain.Client to new upstream API's
A major change for btcwallet adding a new RPC wallet, refactoring parts
of the wallet, and introducing new functionality has been introduced.
This commit updates lnwallet to the API changes. A future commit will
change lnwallet to use some of the new functionality such as the
notification server, etc.
2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
034cbef66d lnwallet: avoid goroutines waiting for channel open indefinitely blocking
Select over the quit channel in order to shutdown goroutines waiting
for funding txn confirmations. Without this we may leak goroutines
which are blocked forever if the process isn’t exiting when the walet
is signaled to shutdown.
2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
20d471a766 lnwalelt: add note for balance update ntfs 2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
d96cf0ec64 lnwallet: fix receiver htlc script
* Fixes a bug in script_utils.go. CSV instead of CLTV was being used
  within the timeout clause of the receivers HTLC (sender can reclaim
the HTLC).
2016-02-03 12:01:44 -08:00
Olaoluwa Osuntokun
0ce4fb1294 lnwallet: properly set transaction version on commit txs 2016-02-03 12:01:44 -08:00
Tadge Dryja
2815afebb7 update imports to github 2016-01-16 10:45:54 -08:00
Olaoluwa Osuntokun
07b0d5ca3e lnwallet: once the reservation workflow is complete, wait then open the payment channel
* Hooks into the ChainNotifier infrastructure to receive a notification
once the funding transaction gets enough notifications.
* Still need to set up the notification grouting within a
LightningChannel to watch for uncooperative closures, and broadcasts
and revoked channel states.
2016-01-14 23:58:04 -08:00
Olaoluwa Osuntokun
6e0cfaf7ec lnwallet: re-introduce rpc calls during channel reservation workflow
* In preparation for regression testing once nodetest is finished.
* These sections we’re previously uncommented to allow for testing the
wallet without a full-node hooked up.
2016-01-14 23:58:04 -08:00