Commit Graph

62 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
f37956e38e
routing: update Sphinx API to include r-hash and per-hop-payload
This commit modifies both the Sphinx packet generation and processing
for recent updates to the API.

With the version 1 Sphinx specification, the payment hash is now
included in the MACs in order to thwart any potential replay attacks.
As a result, any attempts to replay previous HTLC packets MUST re-use
the same payment hash, meaning that the first-hop node can simply
settle the HTLC immediately, thwarting the attacker.

Additionally, within the Sphinx packet, each hop now gets a per-hop
payload which contains the necessary details (CTLV value, fee, etc) for
the node to successfully forward the payment. This per-hop payload is
protected by a packet-wide MAC.
2016-10-27 20:40:26 -07:00
Olaoluwa Osuntokun
4fe23a8b3e
lnd: switch over to using brontide for p2p connections
This commit modifies the existing p2p connection authentication and
encryption scheme to now use the newly designed ‘brontide’
authenticated key agreement scheme for all connections.

Additionally, within the daemon lnwire.NetAddress is now used within
all peers which encapsulates host information, a node’s identity public
key relevant services, and supported bitcoin nets.
2016-10-27 19:49:17 -07:00
Olaoluwa Osuntokun
ee593b273c
rpc: query the database instead of active peers for the ListChannel RPC
This commit takes advantage of the newly added
channeldb.FetchAllChannels method to return the state of all active
channels for the ListChannels RPC command. With this change the state
of all channels can now be queried regardless of if any/all the peers
are currently online.

In a future modification a bit will be added to the channel information
which indicates if the LinkNode the channel was created with is
currently online or not.
2016-10-26 15:09:11 -07:00
Olaoluwa Osuntokun
93fc1d25f5
rpc: create new goroutine to read new payments for SendPayment
This commit modifies the server-side handling of the streaming
SendPayment RPC to launch a new goroutine which is dedicated to reading
new requests from the client from the bi-directional stream. This
modification decouples error handling from stream reading allowing
errors to be returned to the client as the arise rather than after the
next payment has been sent.
2016-10-26 15:05:22 -07:00
Olaoluwa Osuntokun
bde47f6ebb
lnrpc: returns the node's pubkey instead of lighting_id in ListPeers 2016-10-26 14:31:48 -07:00
Andrey Samokhvalov
7196c4bb1c fundingmanager: add max pending channel check 2016-10-22 02:15:35 +03:00
Olaoluwa Osuntokun
7b953c9c61
rpcserver: add REST workarounds, implement new RPC calls
This commit adds a few workarounds in order to concurrently support the
REST proxy as well as the regular gRPC interface. Additionally,
concrete support for the following RPC calls has been added:
GetTransactions, SubscriptTransactions, SubscribeInvoices, and
NewWitnessAddress.
2016-10-15 14:42:25 -07:00
Olaoluwa Osuntokun
d9c0e6653f
test: extract the identity pubkey of running lnd nodes into the lightningNode struct 2016-09-26 10:29:21 -07:00
Olaoluwa Osuntokun
7a6905d697
rpcserver: implement the ListChannels RPC 2016-09-25 20:04:10 -07:00
Olaoluwa Osuntokun
0b841ec686
channeldb: store optional invoice fields as variable length byte arrays
This commit modifies the on-disk storage of invoices to stop the
optional fields (memo+receipt) on-disk as variable length byte arrays.
This change saves space as the optional fields now only take up as much
space as is strictly needed, rather than always being padded out to max
size (1KB).
2016-09-23 15:15:26 -07:00
Olaoluwa Osuntokun
6ff11ba65c
lnrpc: include the settled bit when listing and looking up invoices 2016-09-23 15:06:32 -07:00
Olaoluwa Osuntokun
17249316d6
rpcserver: use the first hop pubkey as the dest to the htlcSwitch
This commit modifies the sendpayment command slightly to use the pub
key of the *first* hop within the route as the destination within the
htlcPacket sent to the htlcSwitch.

Previously, since only single hop was implemented, the final
destination would be set within the htlcPkt, causing the route to fail
as the switch doesn’t have a direct link to the dest in the multi-hop
case.
2016-09-21 19:49:10 -07:00
Olaoluwa Osuntokun
e1b82566bd
lnd: integrate Sphinx onion routing when sending/receiving HTLC's
This commit alters the send/receive HTLC pipe line a bit in order to
fully integrate onion routing into the daemon.

The server now stores the global Sphinx router which all active
htlcManagers will used when processing upstream HTLC add messages.
Currently the onion routing private key is static, and identical to the
node’s current identity public key. In the future this key will be
rotated daily the node based on the current block hash.

When sending a payment via the SendPayment RPC, the routing manager is
now queried for the existence of a route before the payment request is
sent to the HTLC switch. If a path is found, then a Sphinx onion packet
encoding the route is created, then populated within the HTLC add
message.

Finally, when processing an upstream HTLC add request, the sphinx
packet is decoded, then processed by the target peer. If the peer is
indicated as the exit node, then the HTLC is queue’d to be settled
within the next state update.
2016-09-21 19:49:03 -07:00
Olaoluwa Osuntokun
5ebaf9d1e7
routing: vertexes are now serialized pub keys instead of pubkey hashes 2016-09-21 19:48:35 -07:00
Olaoluwa Osuntokun
2eb40d1614
rpcserver: implement new invoice related RPC commands 2016-09-21 19:48:28 -07:00
Olaoluwa Osuntokun
39c9dfb9e4
config: add a new --debughtlc config parameter
This commit adds a new configuration parameter to the deamon:
‘DebugHTLC’. When true, all outgoing HTLC’s sent via the RPC interface
will be sent paying to a special rHash value which all lnd nodes also
with the flag activated know the preimage to. Therefore all payments
sent to a 1-hop node will immediately be settled by that node.

By default, this flag is false, it it only intended to be used to
exercise local changes to 1-hop behavior manually.
2016-09-21 19:48:25 -07:00
Olaoluwa Osuntokun
255b1b7727
test: fix some minor typos, expand comments 2016-09-15 12:25:10 -07:00
andrew.shvv
2788dbeaa8 Add RPC to show current total available channel capacity #29 (#35)
This commit adds a new RPC command: `channelbalance` which returns the
sum of all available channel capacity across all open channels. The
total balance is currently returned in units of `satoshis`. Additionally
the `networkHarness` has been modified slightly to allow specifying the
additional "extra" command line parameters when creating the initial
seed nodes. Minor refactoring within the integration tests has been
undertaken in order to increase code re-use across tests.

Closes #29.
2016-09-15 12:00:56 -07:00
Olaoluwa Osuntokun
6c83f53206
rpcserver: allow targeting open channels via global lightning ID
This commit adds the ability to open channels according a node’s
“global” lightning ID in addition to the local relative peer ID.
2016-09-13 15:35:48 -07:00
Olaoluwa Osuntokun
80b09f7d6f
lnd: properly execute force closures kicked off via RPC
This commit includes some slight refactoring to properly execute force
closures which are initiated by RPC clients.

The CloseLink method within the htlcSwitch has been extended to take an
additional parameter which indicates if the link should be closed
forcefully. If so, then the channelManager which dispatches the request
executes a force closure using the target channel state machine. Once
the closing transaction has been broadcast, the summary is sent to the
utxoNursery so the outputs can be swept once they’re mature.
2016-09-12 19:07:43 -07:00
Olaoluwa Osuntokun
bccb1b9203
rpc: ensure wallet balances are returned in units of BTC 2016-09-08 12:26:16 -07:00
Olaoluwa Osuntokun
abf658a719
lnd: modify the rpcServer's methods to use the new wallet API's 2016-09-08 12:26:03 -07:00
BitfuryLightning
2bcff188e8 lncli: Add graphical output of routing table
LIGHT-131, LIGHT-140, LIGHT-138
`lncli showroutingtable` may output routing table as image.
Use graphviz for graph rendering.
Add explicit version dependency for tools. Add error checking.
2016-09-06 20:06:51 -04:00
BitfuryLightning
b5f07ede46 lncli: Make output of lncli sane and readable
LIGHT-133, LIGHT-138 Make output of `lncli showrouting table` in
two different formats: table and json.
Instead of sending serialized routing table send list of channels.
2016-09-06 20:01:21 -04:00
Olaoluwa Osuntokun
95380fee1b
test: add async txn seen notifications to network harness
This commit adds a new feature to the network harness enabling callers
to receive async notifications once a particular transaction is seen on
the network. Such a feature is useful when due to the asynchronous
behavior of node communications.

With this new feature, tests can now wait for a particular transaction
to be seen within the network before proceeding.
2016-08-30 19:34:25 -07:00
Olaoluwa Osuntokun
832fd248cd
lnd: add async updates for [open|close]channel RPC's
This commit modifies the internal workflow for opening or closing a
channel in order to create a path in which RPC clients can receive
updates. Updates are now communicated via channels from the goroutines
spawned by the RPC server to process the request, and the sub-system
within the daemon that actually executes the request.

With this change clients can now receive updates that the request is
pending (final message has been sent to the target client), or that the
request has been completed. Confirmation related updates have not yet
been implemented as that will require some changes to the ChainNotifier
interface.
2016-08-30 16:53:07 -07:00
BitfuryLightning
f8c851769f multi: initial integration of routing module
This commit integrates BitFury's current routing functionality into lnd. The
primary ochestration point for the routing sub-system in the routingMgr. The
routingMgr manages all persistent and volatile state related to routing within
the network.

Newly opened channels, either when the initiator or responder are inserted into
the routing table once the channel is fully open. Once new links are inserted
the routingMgr can then perform path selection in order to locate an "optimal"
path to a target destination.
2016-08-11 11:20:27 -07:00
Olaoluwa Osuntokun
35bca369e7
lnd: rpcServer now asynchronously handles bi-di sendpayment streams 2016-07-21 16:23:06 -07:00
Olaoluwa Osuntokun
2a57f9182a
lndc+lnd: fix panic when connecting to multiple peers, plus duplicate conn detection 2016-07-16 18:01:05 -07:00
Olaoluwa Osuntokun
a56ab46e97
lnd: properly switch RPC port with target net change
With this commit, support for changing the target network (testnet,
simnet, etc) has been finalized. Previously a command line option was
present to swap networks, but the RPC port wouldn’t automatically be
updated to reflect the network.
2016-07-13 18:37:59 -07:00
Olaoluwa Osuntokun
91509681df
lnd: implement bi-directional streaming SendPayment in rpcserver 2016-07-12 17:46:31 -07:00
Olaoluwa Osuntokun
5fab6ea39e
lnd: redirect channel closure reqs from server to htlcSwitch 2016-07-09 16:36:31 -07:00
Olaoluwa Osuntokun
07166fe88b
lnd: implement pendingchannels RPC
This commit implements the “pendingchannels” RPC within the rpcserver.
This RPC allows callers to receive details concerning the current
pending channels associated with the daemon. Pending channels are those
waiting for additional confirmations before they can be considered
opened/closed.

At the time of this commit, only open channels are shown. A future
commit will also add the confirmation updates, along with information
for close channels.
2016-07-07 15:33:58 -07:00
Olaoluwa Osuntokun
c0383679d2
lnd: use asynchronous streaming responses for [open|close]channel RPC's
This commit switches the implementation of the open/close channel RPC’s
from a fully blocking synchronous model to one that’s async by default,
allowing callers to add a sync wrapper.

The new proto specs also allow for “updates” for the pending channels
in the form of new confirmations which progress the pending status of
the channel. At this point, only the final open/close updates have been
implemented. Obtaining confirmation notifications requires a bit of
re-working within the current ChainNotifier interface, thus this has
been deferred to a later time.
2016-07-07 15:31:07 -07:00
Olaoluwa Osuntokun
c5cc96a524
lnd: implement the getinfo RPC call 2016-07-05 18:57:14 -07:00
Olaoluwa Osuntokun
f3a6f8ffe6
lnd: implement the sendcoins RPC request
This commit implements the “send coins” RPC request which was
introduced at both the lnrpc and command line level in a prior commit.

A small refactoring has taken place w.r.t to sendmany+sendcoins in
order to eliminate some code duplication.
2016-06-29 11:31:34 -07:00
Olaoluwa Osuntokun
914159cb87
lnd: list active channels in response to listpeers cmd 2016-06-22 22:22:44 -07:00
Olaoluwa Osuntokun
7e09a70706
cmd/lncli: properly reverse user txid input
This commit fixes a bug introduced within a prior commit. The prior
commit failed to drollery reverse the txid string taken in as user
input, therefore in order to properly close a channel, the user needed
to manually reverse the txid themselves.

With this change, `wire.NewShaHashFromStr` is used which properly
reverses the string within the constructor. This allows the string
reported not be directly used to the close an active channel.

This commit also corrects a few logging messages.
2016-06-22 11:10:33 -07:00
Olaoluwa Osuntokun
1188fd2bf6
lnd: implement open+close channel workflow in daemon
This commit adds the necessary plumbing within the server, peer, and
rpcServer to handle opening and cooperatively closing a channel with a
remote peer.

Many new data structures have been added to the peer in order to allow
it to efficiently manage opening+.losing new/existing lightning
channels. Additional documentation has been added to several methods
within the peer struct, with some minor renaming along with way. The
peer has also gained a dedicated goroutine whose job it is to manage
any requests pertaining to opening, or closing any channels with the
remote peer.

The messages have been added to lnrpc define the requests and responses
to channel open+close messages. Additional channel logic has been added
between the rpcServer, peer, and server in order to properly manage the
necessary synchronization.
2016-06-21 13:14:05 -07:00
Olaoluwa Osuntokun
9ef7e23384
lnd: implement connectpeer and listpeers RPC calls 2016-06-21 13:14:01 -07:00
Olaoluwa Osuntokun
c7e9bb8c58
lnrpc: implement wallet balance RPC call 2016-06-21 13:13:57 -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
bba8770bb4 lnrpc: add address type param to NewAddress
The new available address types are: regular p2pkh, p2wkh, and finally
p2wkh nested within p2sh. The latter address type will initially be
used to allow users to “fund” the lnd wallet.
2016-04-24 20:26:32 -07:00
Olaoluwa Osuntokun
555003006b add WaitForShutdown method to the server, additional logging 2016-03-22 18:49:22 -07:00
Olaoluwa Osuntokun
d9922dc76d update the rpcserver's SendMany method to new btcwallet API 2016-03-22 18:48:46 -07:00
Tadge Dryja
9e5f302288 move lnadr from main to lndc package 2016-01-17 10:45:07 -08:00
Olaoluwa Osuntokun
5cc8efaa43 implement the gRPC "ConnectPeer" function within rpcserver 2016-01-16 19:31:09 -08:00
Olaoluwa Osuntokun
1f1b82fe3f add constructor for core server struct 2016-01-16 19:28:16 -08:00
Olaoluwa Osuntokun
7ecbb2debc move getPriv to server.go, and rename 2016-01-16 19:27:20 -08:00
Tadge Dryja
85590e0f6c revert to testnet3 params 2016-01-16 11:11:43 -08:00