Commit Graph

864 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
f29b496b76
chainntfns/btcdnotify: close channels for all epoch clients on shutdown
This commit modifies the Stop method of the default ChainNotifier
client, the BtcdNotifier. We now close the notificaiton channel for all
the currently active block epoch clients in order to give clients a
signal that the entire daemon and possibly the ChainNotifier is
shutting down. This gives clients an extra signal to more thoroughly
implement a graceful shutdown across the daemon.
2016-12-15 13:53:46 -08:00
Olaoluwa Osuntokun
a88b093843
test: due to persistent conn retry, don't consider already connected an error 2016-12-14 18:24:16 -08:00
Olaoluwa Osuntokun
e6a0b7bef6
build: update glide to include the connmgr 2016-12-14 18:16:03 -08:00
Olaoluwa Osuntokun
bd89a9312d
lnd: switch to using the connmgr for listening and persistent conns
This commit revamps the way in bound and outbound connections are
handled within lnd. Instead of manually managing listening goroutines
and also outbound connections, all the duty is now assigned to the
connmgr, a new btcsuite package.

The connmgr now handles accepting inbound (brontide) connections and
communicates with the server to hand off new connections via a
callback. Additionally, any outbound connection attempt is now made
persistent by default, with the assumption that (for right now),
connections are only to be made to peers we wish to make connections
to. Finally, on start-up we now attempt to connection to all/any of our
direct channel counter parties in order to promote the availability of
our channels to the daemon itself and any RPC users.
2016-12-14 18:15:55 -08:00
Olaoluwa Osuntokun
89326423dc
peer+htlcswitch: fix bandwidth update bug when using --debughtlc
This commit fixes a htlcSwitch bandwidth update bug that would manifest
when two sending daemons were started with the —debughtlc flag. The
invoice created for the debug HTLC has a value of 1000BTC. As a result
regardless of the amount sent, the switch’s state which be updated to
reflect that the daemon had just received a 1000BTC transfer.

To fix this bug, we now use the value of the HTLC itself for the
update, rather than the value if the invoice as they should match.
2016-12-14 18:04:13 -08:00
Olaoluwa Osuntokun
e3e2ba342c
lnwallet: properly set nodeAddr during channel reservation init
This commit fixes a lingering bug within the channel funding
reservation workflow that caused the address of a channel counter-party
to not be written to disk, resulting in an error on start up. To fix
this, we now properly populate the node’s TCP address when initiating
the reservation.
2016-12-14 17:49:18 -08:00
Olaoluwa Osuntokun
29f1328948
channeldb: properly check for a nil bucket when fetching LinkNodes 2016-12-14 17:49:11 -08:00
Olaoluwa Osuntokun
ad180b4fba
brontide: fix bug in final sender/receiver key derivation
This commit fixes a bug in our key derivation for the final step of the
key exchange. In our code we were swapping the order of the salt and
input keyeing material to the HKDF function. This was triggered by the
argument order of the golang implementation we’re currently using has
the “secret” of IKM argument first, instead of second as defined within
rfc5869.

To fix this, we simply need to swap function arguments in two places:
within the split() function and during key rotation.

This bug was discovered by Rusty Russell, thanks!
2016-12-13 11:32:02 -08:00
Andrey Samokhvalov
d01f1b5ff4 fundingmanager+lnwallet: add HTLC dust limit logic 2016-12-13 11:01:57 -08:00
Andrey Samokhvalov
c731156ac8 lnwire: add DustLimit to SingleFundingRequest and SingleFundingResponse 2016-12-13 11:01:57 -08:00
Andrey Samokhvalov
202fce5501 channeldb: add TheirDustLimit and OurDustLimit fields in OpenChannel 2016-12-13 11:01:57 -08:00
Andrey Samokhvalov
5a82240c6a lnwire+lnwallet+fundingmanager: general improvements 2016-12-13 11:01:57 -08:00
Olaoluwa Osuntokun
a6f7f05323
test: update integration test helper funds to latest btcrpcclient API 2016-12-12 15:57:22 -08:00
Olaoluwa Osuntokun
d8e9a378e9
build: update glide to ensure the package hash verifies properly 2016-12-12 15:57:12 -08:00
Olaoluwa Osuntokun
e66824ed9b
lnrpc: compile protos with latest version of go-protobuf 2016-12-12 15:57:07 -08:00
Olaoluwa Osuntokun
ccf71100fd
chainntfns/btcdnotify: update to newest btcrpcclient interface 2016-12-12 15:57:03 -08:00
Olaoluwa Osuntokun
f61f3d0b71
rpcserver: populate block height, chain synced, and testnet in GetInfo 2016-12-12 15:56:58 -08:00
Olaoluwa Osuntokun
a011a3f414
lnrpc: add testnet bool to GetInfo RPC, remove lightning_id 2016-12-12 15:56:54 -08:00
Olaoluwa Osuntokun
61ddd48255
brontide: set the prologue value as specified within BOLT0008 2016-12-12 15:56:50 -08:00
Olaoluwa Osuntokun
b1d28426d5
brontide: properly pack nonce as 96-bit little endian value 2016-12-12 15:56:46 -08:00
Olaoluwa Osuntokun
fdb111e867
brontide: switch to using libsecp256k1's public ECDH API
This commit modifies the opening brontide handshake to use
libsecp256k1's public ECDH API throughout the handshake rather than the
current method which just returns the x-coordinate of the generated
point.

This change was made in order to align the current spec draft with the
aforementioned library since it’s very popular within the pace and
strives to only expose safe API’s to end users.
2016-12-12 15:56:42 -08:00
Olaoluwa Osuntokun
a92017fe9a
lnrpc: rebuild protos 2016-12-12 15:56:38 -08:00
Olaoluwa Osuntokun
85defc3ec3
lnwallet: add new method IsSynced to the WalletController interface
This commit adds a new method to the WalletController interface:
IsSynced. The role of the function is to query the local wallet about
if it thinks it has fully synced to the tip of the current main chain.
This function can be useful within U.I’s to block off certain
functionality until the wallet is fully synced to the main chain.
2016-12-12 15:56:33 -08:00
Olaoluwa Osuntokun
1e3635b5aa
chainntnfs: properly account for partial historical confirmation dispatch
This commit modifies the recently added logic to the ChainNotifier to:
  1. Fix the off-by-one confirmation error that was missed due a flaky
test
  2. Ensure that partial historical confirmations are properly handled.

The partial hostile confirmation case arises when a transaction already
a non-zero number of confirmations when the notification is registered,
but less than what would trigger the confirmation notification. To fix
this, transaction which have a partial number of confirmation are now
properly inserted into the confHeap, skipping first first phase for
notifications.
2016-12-08 16:16:29 -08:00
Alex Akselrod
a20594b0bf lnwire: switch to using a fixed 64-byte encoding for signatures (#86)
This commit modifies the encoding of signatures on the wire to use 
a fixed-size 64-byte format. This change is required as the current spec
draft dictates that all signatures be encoded as `R` and `S` as 32-byte
big-endian integers. With this, signatures are now always a _fixed_ size 
slice of bytes on the wire, which is nice to have. 

Fixes #83.
2016-12-08 12:56:37 -08:00
bryanvu
909c3f8df9 chainntfs: add checks for previously confirmed transactions and spends
Without these checks, “zombie” notification requests that would never
be dispatched could be registered. This would occur if notification
requests were made for events (transaction confirmation and output
spent) that had already been recorded on the blockchain.
2016-12-08 12:28:15 -08:00
Olaoluwa Osuntokun
e39dc9eec1
channeldb: add storage of an on-disk directed channel graph
This commit introduces a new capability to the database: storage of an
on-disk directed channel graph. The on-disk representation of the graph
within boltdb is essentially a modified adjacency list which separates
the storage of the edge’s existence and the storage of the edge
information itself.

The new objects provided within he ChannelGraph carry an API which
facilitates easy graph traversal via their ForEach* methods. As a
result, path finding algorithms will be able to be expressed in a
natural way using the range methods as a for-range language extension
within Go.

Additionally caching will likely be added either at this layer or the
layer above (the RoutingManager) in order keep queries and outgoing
payments speedy. In a future commit a new set of RPC’s to query the
state of a particular edge or node will also be added.
2016-12-07 22:50:19 -08:00
Olaoluwa Osuntokun
06347664fc
channeldb: remove route.go 2016-12-07 22:40:16 -08:00
Olaoluwa Osuntokun
e0c09a016b
lnwallet: use stored initiator bool to properly construct close tx
This commit modifies the channel closing logic to remove the hard coded
bools indicating which side is attempting the closure. With the recent
changes, the initiator must always pay the channel closure fees.

This information is recently stored on disk, therefore we can use the
boolean to ensure that the closure transaction is created properly no
matter who initiates the close.

This fixes a bug.
2016-12-07 22:39:33 -08:00
Olaoluwa Osuntokun
60f66fe2d7
brontide: implement handshake versioning enforcement per the spec 2016-11-30 19:11:58 -08:00
Olaoluwa Osuntokun
71c6e837e3
breacharbiter: fix bug, don't exit main loop due to unknown contract 2016-11-28 20:08:06 -08:00
Olaoluwa Osuntokun
494fcec874
breacharbiter: introduce new sub-system to watch for breaches
This commit introduces a new sub-system into the daemon whose job it is
to vigilantly watch for any potential channel breaches throughout the
up-time of the daemon. The logic which was moved from the utxoNursery
in a prior commit now resides within the breachArbiter.

Upon start-up the breachArbiter will query the database for all active
channels, launching a goroutine for each channel in order to be able to
take action if a channel breach is detected. The breachArbiter is also
responsible for notifying the htlcSwitch about channel breaches in
order to black-list the breached linked during any multi-hop forwarding
decisions.
2016-11-28 19:44:09 -08:00
Olaoluwa Osuntokun
93cbfdbd60
htlcswitch: add new CloseType enum to account for all closure types 2016-11-28 18:44:22 -08:00
Olaoluwa Osuntokun
a5d9ce2fac
utxonursery: remove contract breach retribution duties
This commit removes the previously added contract breach retribution
duties from the utxoNursery. Much of the code removed will instead be
moved to a new sub-system which continuously monitors the state of ALL
active contracts for their entire life time.
2016-11-28 16:53:23 -08:00
Olaoluwa Osuntokun
7b016fef0a
chainntfns: extend testSpendNotification to test for multi-client dispatch 2016-11-27 19:18:24 -08:00
Olaoluwa Osuntokun
d1f12627d2
chainntfns/btcdnotify: add support for multi-dispatch spend notifications
This commit adds support for dispatching the same spend notification to
multiple clients. This is now required by the ChainNotiifer interface
documentation and will be needed within the daemon in order to support
some upcoming refactors.
2016-11-27 19:17:34 -08:00
Olaoluwa Osuntokun
0bd5c6790d
chainntfns: specify that implementations must support multiple clients
This commit updates the documentation for the ChainNotifier interface
to specify that all implementation MUST be able to support dispatching
the same notification to multiple clients.
2016-11-27 19:16:06 -08:00
Olaoluwa Osuntokun
60946e4ddc
channeldb: add method to OpenChannel for querying num updates
This commit adds a new method to the `OpenChannel` struct:
CommitmentHeight(). This method allows multiple callers holding the
same instance of an OpenChannel struct tied to the same on-disk channel
to consistently query the current commitment height for a channel. Such
a modification will prove useful later as sections of the code-base are
separated in order to allow more vigilant watching of channel breaches.
2016-11-27 19:10:13 -08:00
Olaoluwa Osuntokun
5a668c9321
channeldb: fully initialize meta-data bucket during DB creation 2016-11-27 18:49:09 -08:00
Olaoluwa Osuntokun
7454b7df95
channeldb: slightly refactor the [Fetch|Put]Meta methods
This commit performs a slight refactoring of the internals (and API) of
the [Fetch|Put]Meta methods. The changes are rather minor and simply
eliminate the conditional branching structure with usage of an internal
function. This new form is much easier to follow.
2016-11-27 18:44:23 -08:00
Olaoluwa Osuntokun
5b2f9a5b69
channeldb: modify base DB version to start at 0, not 1 2016-11-27 18:37:13 -08:00
Olaoluwa Osuntokun
1e710b73a0
channeldb: properly handle ErrMetaNotFound error within syncVersions 2016-11-27 18:36:24 -08:00
Olaoluwa Osuntokun
8312ce587a
channeldb: embed the instance of boltb within DB struct
This commit modifies the composition of the boltdb pointer within the
DB struct to use embedding.

The rationale for this change is that the daemon may soon store some
semi-transient items within the database which requires us to expose
the boltdb’s transaction API. The logic for serialization of this data
will likely lie outside of the channeldb package as the items that may
be stored in the future will be specific to the current sub-systems
within the daemon and not generic channel related data.
2016-11-27 18:35:55 -08:00
BitfuryLightning
327768f4ad routing: Move tools inside lnd. Refactor and delete unneeded stuff
Use [33]byte for graph vertex representation.
Delete unneeded stuff:
1. DeepEqual for graph comparison
2. EdgePath
3. 2-thread BFS
4. Table transfer messages and neighborhood radius
5. Beacons

Refactor:
1. Change ID to Vertex
2. Test use table driven approach
3. Add comments
4. Make graph internal representation private
5. Use wire.OutPoint as  EdgeId
6. Decouple routing messages from routing implementation
7. Delete Async methods
8. Delete unneeded channels and priority buffer from manager
9. Delete unneeded interfaces in internal graph realisation
10. Renamed ID to Vertex
2016-11-23 20:37:43 -06:00
Andrey Samokhvalov
da3028e10c lnwallet: add HTLC count validation 2016-11-23 20:02:29 -06:00
Andrey Samokhvalov
391d5cd401 lnwallet: add commitment transaction estimation 2016-11-23 20:02:29 -06:00
Andrey Samokhvalov
5b9e4ae61e general: fix typos, rename variables, add comments 2016-11-23 20:02:29 -06:00
Olaoluwa Osuntokun
b70d1f8cfe
channeldb: move .SyncVersions() into .Open(), minor migration cleanups
This commit unexports the SyncVerions PR, in favor of making it private
and moving it into the .Open() method. With this change, callers no
longer need worry about ensuring the database version is up to sync
before usage, as it will happen automatically once the database is
opened.

This commit also unexports some additional variables within the package
that don’t need be consumed by the public, and exports the
DbVersionNumber attribute on the meta struct. Finally some minor
formatting fixes have neen carried out to ensure the new code more
closely matches the style of the rest of the codebase.
2016-11-22 16:00:02 -06:00
Andrey Samokhvalov
25167361d2 lnd: add sync logic in lnd main 2016-11-22 15:25:21 -06:00
Andrey Samokhvalov
c53ea091dd channeldb: added channeldb versioning
In this commit the upgrade mechanism for database was added which makes he current schema rigid and upgradeable. Additional bucket 'metaBucket' was added which stores
    key that house meta-data related to the current/version state of the database. 'createChannelDB' was modified to create this new bucket+key during initializing. Also
    backup logic was added which makes a complete copy of the current database during migration process and restore the previous version of database if migration failed.
2016-11-22 15:25:21 -06:00