Commit Graph

351 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
c8d978261b
lnwire: remove the Validate method from the Message interface
This commit revues the Validate method from the Message interface as
the method is no longer used and is a relic from an older version of
the codebase.
2017-04-19 15:03:51 -07:00
Olaoluwa Osuntokun
920fcf3392
lnwire: modify newAlias to no longer return an error 2017-04-19 14:59:22 -07:00
Olaoluwa Osuntokun
1b10db212e
lnwire: rename ChannelUpdateAnnouncement to ChannelUpdate 2017-04-17 16:20:21 -07:00
Olaoluwa Osuntokun
bf7701cd62
features: add new feature bits to guard recent changes 2017-04-16 18:19:09 -07:00
Olaoluwa Osuntokun
feec611531
lnwire+peer: implement new ping/pong messages and behavior
This commit implements the new ping/pong messages along with their new
behavior. The new set of ping/pong messages allow clients to generate
fake cover traffic as the ping messages tells the pong message how many
bytes to included and can also be padded itself.
2017-04-16 18:11:45 -07:00
Olaoluwa Osuntokun
83c72eb082
lnwire: place ping and pong in the correct files :p 2017-04-16 15:48:46 -07:00
Olaoluwa Osuntokun
d17b11862b
lnwire: convert ErrorGeneric to Error
With this change we move one step closer to matching the wire protocol
currently defined within the spec.
2017-04-16 15:23:45 -07:00
Olaoluwa Osuntokun
c06894a2e6
lnwire: replace ChannelPoint with ChannelID, use new PendingChanID 2017-04-16 15:22:27 -07:00
Olaoluwa Osuntokun
8147151fbf
lnwire: add new 32-byte persistent/pending channel ID's
This commit does to things: moves the prior ShortChannelID struct into
a new short_channel_id.go file, and also implements the new ChannelID’s
currently used within he specification.

These new ID’s are 32-bytes in length and used during initial channel
funding as well as during normal channel updates. During initial
channel funding, the ID is to be a random 32-byte string, while once
normal channel operation has began, the ID is to be (txid XOR index),
where index is the index of the funding outpoint.
2017-04-16 15:19:45 -07:00
Andrey Samokhvalov
c3b2854428 lnwire: converge discovery part of messages with specification
Change the name of fields of messages which are belong to the discovery
subsystem in a such way so they were the same with the names that are
defined in the specification.
2017-03-29 19:49:05 -07:00
Andrey Samokhvalov
54b3541707 lnwire: add specification 'AnnounceSignature' message
In this commit announcement signature message has been added which is
needed when peers want to announce their channel to the rest of the
network. This message acts as half proof carrier, nodes exchanges
their half proofs with each other and after that they are able to
construct the full proof.
2017-03-29 19:49:05 -07:00
Andrey Samokhvalov
c174141a72 lnwire: remove not working test
Validation of the announcements message has been removed and it will
be added in the discovery package latter.
2017-03-29 19:49:05 -07:00
Olaoluwa Osuntokun
afe77853b7
server+lnwire: pre-allocate address slices 2017-03-29 19:00:31 -07:00
bryanvu
085b7333cb lnwire: add support for Features in NodeAnnouncement
Add support for Features in NodeAnnouncment according to spec.
2017-03-29 12:03:43 -07:00
bryanvu
9ffac9eae1 lnwire: update NodeAnnouncement to handle multiple addresses
This commit modifies address handling in the NodeAnnouncement struct,
switching from net.TCPAddr to []net.Addr. This enables more flexible
address handling with multiple types and multiple addresses for each
node. This commit addresses the first part of issue #131 .
2017-03-29 12:03:43 -07:00
Olaoluwa Osuntokun
6b3a258e86
multi: fix formatting issues in packge README's 2017-03-27 16:25:25 -07:00
Andrey Samokhvalov
9dfaca1632 linter: fix new warnings 2017-03-17 12:53:15 -07:00
Olaoluwa Osuntokun
0db384fd6b
lnwire: properly fold at 80-columns within features.go 2017-03-16 12:12:00 -07:00
Andrey Samokhvalov
61991a1c89 lnd: fix latest goclean.sh lint warning 2017-03-13 16:30:23 -07:00
Andrey Samokhvalov
fd97a4bd19 lnd: partially fix golint warnings 2017-03-13 16:30:23 -07:00
Andrey Samokhvalov
143a6e01bb lnd: fix unconvert warnings 2017-03-13 16:30:23 -07:00
Andrey Samokhvalov
8fb54782e2 lnd: fix gosimple warnings 2017-03-13 16:30:23 -07:00
Olaoluwa Osuntokun
da09f4dcc4
lnwire: modify newAlias to truncate alias strings if too long 2017-03-08 14:21:57 -08:00
Olaoluwa Osuntokun
f881e0a356
lnwire: fix typo in ChannelUpdateAnnouncement, Mstat -> Msat 2017-03-08 14:20:14 -08:00
Olaoluwa Osuntokun
743de45c92
lnwire: rename Expiry to TimeLockDelta within ChannelUpdateAnnouncement
This commit modifies the ChannelUpdateAnnouncement to rename the Expiry
variable instead of TimeLockDelta as that is more descriptive of the
purpose of the attribute itself.
2017-03-05 22:43:57 -06:00
bryanvu
7048480a4a minor: fixed arbiter spelling and comment/error messages in funding rpc messages 2017-02-24 11:37:33 -08:00
bryanvu
eb490b8833 lnwire: add FundingLocked message
When the funding transaction has been confirmed, the FundingLocked
message is sent by the peers to each other so that the existence of the
newly funded channel can be announced to the network.

This commit also removes the SingleFundingOpenProof message.
2017-02-24 11:37:33 -08:00
bryanvu
e549a3f0ed fundingmanager: move final funding steps from wallet to funding manager.
Once a channel funding process has advanced to the point of broadcasting
the funding transaction, the state of the channel should be persisted
so that the nodes can disconnect or go down without having to wait for the
funding transaction to be confirmed on the blockchain.

Previously, the finalization of the funding process was handled by a
combination of the funding manager, the peer and the wallet, but if
the remote peer is no longer online or no longer connected, this flow
will no longer work. This commit moves all funding steps following
the transaction broadcast into the funding manager, which is available
as long as the daemon is running.
2017-02-24 11:37:33 -08:00
Olaoluwa Osuntokun
3a647869b6
lnwire: fix features_test.go to not reference removed .String() method 2017-02-22 16:01:42 -08:00
Olaoluwa Osuntokun
f9b44567ed
lnwire: remove String() method from FeatureVector
This commit removes the String() method from the FeatureVector as it
can produce confusing output when revving a feature vector and not
knowing the strip mapping ahead of time.
2017-02-22 15:53:47 -08:00
Christopher Jämthagen
46d23919e7 lnwire: add serializing and deserializing for type [6]byte
and remove serialization for type [4]byte.
2017-02-22 15:46:59 -08:00
Christopher Jämthagen
97aa478ce1 channeldb: change [4]byte obsfucator to [6]byte in test 2017-02-22 15:46:59 -08:00
Christopher Jämthagen
3983e0693b lnwire: use [6]byte obsfucator 2017-02-22 15:46:59 -08:00
Olaoluwa Osuntokun
8024fd72f8
lnwire: create distinct type for UpdateFailHTLC failure reason
This commit creates a distint type for the opaque failure reason within
the UpdateFailHTLC message. This new type is needed as this is the only
variable length byte slice within the protocol and therefore requires a
length prefix in order to serialize/deserialize properly.
2017-02-21 01:43:36 -08:00
Olaoluwa Osuntokun
4aa7de7f58
lnwire: remove obsolete String() method from new wire messages 2017-02-21 01:43:34 -08:00
Olaoluwa Osuntokun
ccbbcf389b
lnwire: directly embed the wire.OutPoint in all commitment update msgs 2017-02-21 01:42:35 -08:00
Olaoluwa Osuntokun
5330513c7b
lnwire: morph HTLCSettleRequest into UpdateFufillHTLC
This commit modifies the prior HTLCSettleRequest to more closely match
the UpdateFufillHTLC defined within the specification. The only
semantic change is the move from a slice of pre-images (for “multi-sig”
LN) to a single payment preimage.
2017-02-21 01:42:32 -08:00
Olaoluwa Osuntokun
f1357e96b3
lnwire: morph CancelHTLC into UpdateFailHTLC, remove HTLCAddReject
This commit morphs the prior CancelHTLC into the new UpdateFailHTLC
message and also gets rid of the obsolete HLTCAddReject message while
we’re at it.

The primary change from the CancelHTLC message to the UpdateFailHTLC
message is that the CancelReason is now simply called Reason and that
it’s now an opaque encrypted set of bytes. With this update the failure
messages are now more flexible (they can even carry new
ChannelUpdate’s) and also don’t reveal the exact cause of failure to
intermediate nodes.
2017-02-21 01:42:29 -08:00
Olaoluwa Osuntokun
ec02060c9f
lnwire: rename HTLCAddRequest to UpdateAddHTLC 2017-02-21 01:42:26 -08:00
Olaoluwa Osuntokun
8a63c83283
lnwire: morph CommitSignature into CommitSig
This commit renames and modifies the CommitSignature message to more
closely match the CommitSig message defined within the current set of
draft specifications.

The major change within the new message is that we now longer
explicitly specify the update log index of the remote node that this
signature covers. This is due to the fact the revocation message now
also double as acknowledgements of the remote parties recevied
commitment update messages.
2017-02-21 01:42:23 -08:00
Olaoluwa Osuntokun
9a61bb3ae1
lnwire: rename CommitRevocation to RevokeAndAck
This commit renames the prior CommitRevocation message to RevokeAndAck
in order to better align the set of wire messages implemented by the
`lnwire` message with those currently defined within the specification.
2017-02-21 01:42:09 -08:00
Andrey Samokhvalov
ae15a193e2 lnwire+features: transition to the user friendly list of features 2017-02-21 01:25:05 -08:00
Andrey Samokhvalov
3dd619fb35 lnwire: Add BOLT#1 'init' message
'init' message is the first message reveals the features supported or required
by this node. Nodes wait for receipt of the other's features to simplify error
diagnosis where features are incompatible. This message will help negotioate the
the features which are supported by both sides.
2017-02-17 13:27:29 +08:00
Olaoluwa Osuntokun
384fe61e73
multi: fix go vet warnings throughout code base 2017-02-16 19:33:19 +08:00
Olaoluwa Osuntokun
a658fabf48
funding: disallow channel creation before lnd is synced to the chain
This commit adds a new restriction around funding channels at the
daemon level: lnd nodes will not allow either the initiation or the
acceptance of a channel before the node is fully synced to the best
known chain.

This fixes a class of bug that arises when a new node joins the network
and either attempts to open a channel or has a channel extended to them
before the node is fully synced to the network.
2017-01-24 17:12:57 -08:00
Trevin Hofmann
40c7bac3aa multi: fix a variety of typos throughout the repo 2017-01-17 17:02:56 -08:00
Olaoluwa Osuntokun
f82d957c90
lnwire+peer: introduce new error for unknown message type for forward compat
This commit adds a new error type to the `lnwire` package:
`UnknownMessage`. With this error we can catch the particular case of a
an error during reading that encounters a new or unknown message. When
we encounter this message in the peer’s readHandler, we can now
gracefully handle it by just skipping to the next message rather than
closing out the section entirely.

This puts us a bit closer to the spec, but not exactly as it has an
additional constraint that we can only ignore a new message if it has
an odd type. In a future release, we’ll modify this code to match the
spec as written.
2017-01-16 18:03:43 -08:00
Olaoluwa Osuntokun
d884efea29
lnwire+lnd: Make Logging Messages Great Again
This commit modifies the login of sent/recv’d wire messages in trace
mode in order utilize the more detailed, and automatically generated
logging statements using pure spew.Sdump.

In order to avoid the spammy messages due to spew printing the
btcec.S256() curve paramter within wire messages with public keys, we
introduce a new logging function to unset the curve paramter to it
isn’t printed in its entirety. To insure we don’t run into any panics
as a result of a nil pointer defense, we now copy the public keys
during the funding process so we don’t run into a panic due to
modifying a pointer to the same object.
2017-01-14 17:52:18 -08:00
Trevin Hofmann
a13ac90d46 multi: add link to LICENSE in README license badges (#100) 2017-01-12 16:31:08 -08:00
Christopher Jämthagen
95888613d0 multi: minor fixes for README's 2017-01-11 15:50:22 -08:00
Olaoluwa Osuntokun
4ccdad0d66
multi: add README's for all sub-packages 2017-01-10 15:02:37 -08:00
Olaoluwa Osuntokun
35776a9906
lnwire: add new 'PushSatoshis' field to SingleFundingRequest
This commit adds a new paramter to the initial channel creation:
‘PushSatoshis’. This new field allows the funder of a channel to push
over a certain amount to the responder as part of the initial channel
state. This ability creates a new streamlined UX of finalizing a
payment as a part of the channel creation.
2017-01-09 17:24:32 -08:00
Olaoluwa Osuntokun
81767eb8fd
lnwire: add IncorrectValue as HTLC error type, fix typos
This commit adds a new HTLC error type: IncorrectValue. This error type
is to be used when an HTLC that’s extended to the final destination
does not match the expectation of the destination.
2017-01-07 21:21:58 -08:00
Olaoluwa Osuntokun
d079c88702
lnwire: add cancellation reason to htlc cancel messages
This commit adds a new field to the CancelHTLC message which describes
the event that led to an HTLC being cancelled up stream.

A new enum has been added which describers the “why” concerning the
cancellation of the HTLC. Currently the encoding and back propagation
of the errors aren’t properly implemented as defined within the spec.
As a result the current error types provide to privacy as the error are
in plain-site rather doing being properly encrypted.
2017-01-07 21:20:54 -08:00
Olaoluwa Osuntokun
5affed38fc
multi: update btcsuite API's to latest upstream changes
This commit makes a large number of minor changes concerning API usage
within the deamon to match the latest version on the upstream btcsuite
libraries.

The major changes are the switch from wire.ShaHash to chainhash.Hash,
and that wire.NewMsgTx() now takes a paramter indicating the version of
the transaction to be created.
2017-01-05 13:56:34 -08:00
Olaoluwa Osuntokun
98471256fa
lnwire: modify fundingOpen to include channel ID rather than SPV proof
This commit modifies the SingleFundingOpen message to include the
compact channel ID of the finalized transaction rather than a “fake”
SPV proof. This change is a stop-gap which allows us to implement
portions of BOLT07 without yet fully implementing all parts of BOLT[02,
03].
2016-12-27 16:44:25 -08:00
Olaoluwa Osuntokun
b5dd462e13
lnwire: remove old routing/discovery messages
This commit removes the older routing/discovery messages from the
unwire package, as we’ll be converging towards BOLT07 in the near-term.
In the mid to far term we’ll be revisiting integrating Flare into the
newer scheme in order to take advantage of its scaling characteristics.
2016-12-27 16:44:20 -08:00
Olaoluwa Osuntokun
78ce39692e
lnwire: remove channel graph announcement validation tests
This commit removes the previous test cases which excised the proper
validation of graph announcements on the network. As full generation of
the authenticated messages has not yet been implemented, these tests
aren’t currently applicable.

In a future commit, these tests will be replicated on the new discovery
package which will handle producing the channel proofs and also fully
validating them.
2016-12-27 16:43:48 -08:00
Olaoluwa Osuntokun
e5490b55f4
lnwire: modify Alias to only track the non-zero portion of wire msg
This commit modifies the Alias type to only hold the non-zero portion
of the alias as encoded on the wire. Previously the entire 32-bytes
would be read and stored, including the zeroes at the end used as
padding. Within the constructor, we now parse the alias properly,
discarding the trailing zeroes within the passed byte slice.
Additionally, the .String() method of Alias will now also only print
the non-zero prefix of the decoded alias.
2016-12-27 16:43:46 -08:00
Olaoluwa Osuntokun
16388aba00
lnwire: temporarily disable chan/node announcement validation
This commit temporarily disables the signature validation for all
announcement related messages which should be authenticated by one or
many parties. This feature is being disabled as we don’t yet generate
valid signatures for our advertisements and the validation of the
messages should be placed in the layer 3 discovery service rather than
within within the message parsing layer.
2016-12-27 16:43:44 -08:00
Olaoluwa Osuntokun
1b0a0b6538
lnwire: add tests to check payload estimates for channel announcements 2016-12-27 16:43:39 -08:00
Olaoluwa Osuntokun
3dc8cd5659
lnwire: correct max payload estimate for NodeAnnouncement, add test 2016-12-27 16:43:36 -08:00
Olaoluwa Osuntokun
3d32c4e90e
lnwire: separate ChannelID into a distinct struct, add tests
This commit separates out the ChannelID into a new file, with
additional helper methods for conversion and formatting. With this
commit, the struct is now more general purpose and can be used in the
new routing package, database, and other related sub-systems.
2016-12-27 16:43:24 -08:00
Olaoluwa Osuntokun
5ee201e712
lnwire: embed ChannelID within the announcement structs rather than pointer 2016-12-27 16:43:21 -08:00
Andrey Samokhvalov
b440005219
lnwire: add ChannelAnnoucement,NodeAnnoucement,ChannelUpdateAnnoucement messages 2016-12-27 16:43:02 -08:00
Andrey Samokhvalov
c731156ac8 lnwire: add DustLimit to SingleFundingRequest and SingleFundingResponse 2016-12-13 11:01:57 -08:00
Andrey Samokhvalov
5a82240c6a lnwire+lnwallet+fundingmanager: general improvements 2016-12-13 11:01:57 -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
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
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
1ef218a73d
lnwire: add the state hint obsfucator to the SingleFundingComplete msg 2016-11-14 19:04:03 -08:00
Olaoluwa Osuntokun
7fc6159f0a
lnwire: re-add .String() to the lnwire.Message interface 2016-11-10 17:48:09 -08:00
Olaoluwa Osuntokun
3f39f5413e
lnwire: add ping and pong messages
This commit adds Ping and Pong messages to the suite of lnwire
messages. The usage of these messages within the daemon are similar to
the usage of Bitcoin’s ping/pong messages. Pings are to be sent
periodically with a random nonce to check connection activity and also
to gauge latency. Pong’s are to be sent in reply to ping messages,
echo’ing the same nonce used.
2016-11-10 17:09:27 -08:00
Olaoluwa Osuntokun
f12b9b4bd7 Merge pull request #66 from AndrewSamokhvalov/temporary_fix_multihop
Temporary fix multihop
2016-11-08 14:58:01 -08:00
Olaoluwa Osuntokun
1855b95558
lnwire: modify NetAddress to implement the net.Addr interface
This commit modifies lnwire.NetAddress by adding a .Network() method.
With this added method the struct now implements the net.Addr interface
meaning that it can now be transparently passed into any context where
a net.Addr is requested.

This change paves the way to integration of btcd’s new connmgr into the
daemon to handle establishing persistent connections to all channel
counter parties.
2016-11-07 18:18:20 -08:00
Andrey Samokhvalov
8dcf274a2d fix typos 2016-10-30 17:54:59 +03:00
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
5c751ec1df
lnwire: add a field to indicate bitcoin net to NetAddress 2016-10-27 19:19:58 -07:00
Olaoluwa Osuntokun
99ed3b8616
lnwire: introduce new NetAddress struct for p2p node addr+key info 2016-10-26 18:41:37 -07:00
Olaoluwa Osuntokun
afae7aad2a
lnwire: add concrete error type to ErrorGeneric 2016-10-23 13:41:23 -07:00
Andrey Samokhvalov
7196c4bb1c fundingmanager: add max pending channel check 2016-10-22 02:15:35 +03:00
Andrey Samokhvalov
b0525cf478 wire: add PendingID in ErrorGeneric 2016-10-22 01:48:23 +03:00
Andrey Samokhvalov
14c6770b76 general: fix typos 2016-10-22 01:48:05 +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
7d0e1576ec
lnwire: remove the HTLC timeout msg in favor of a HTLC cancel msg
This commit removes the previous HTLC timeout in message in favor of a
HTLC cancel message. Within the protocol, a timeout message would never
be sent backwards along the route as in the case of an HTLC timeout
before/after the grace period, the course of action taken would be to
broadcast the current commitment transaction unilaterally on-chain.
2016-09-22 18:51:51 -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
d8bceb16f9 routing: Fix bugs with not sending routing messages
LIGHT-138, LIGHT-141. Due to some issues in sending/receiving parts of lnd,
messages with zero length are not sent. So added some mock content to
NeighborAck. Moved sender/receiver from routing message to wrap message
which contains lnwire routing message.
2016-09-06 20:01:21 -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
c0d59a2d85
lnwire: rename routing files to match current naming conventions
This commit drops the “_message” at the end of each of the newly added
routing files.
2016-08-11 11:54:56 -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
bdc22e67fa
lnwire: remove obsolete dual funder messages 2016-07-25 16:02:00 -07:00
Olaoluwa Osuntokun
0b86c01067
lnwire: fix CommitSignature max payload length
This commit increase the max allowed payload length for the
CommitSignature method in order to account for the added 8 byte log
index.
2016-07-12 17:07:40 -07:00
Olaoluwa Osuntokun
c8de0924ba
lnwire: properly display channel points in .String() methods 2016-07-12 17:05:18 -07:00
Olaoluwa Osuntokun
6dcefac868
lnwire: update CommitRevocation for revoke key scheme
With this commit a revocation message now carries 3 items:

  1. A pre-image revoking the lowest unrevoked commitment transaction
in the commitment chain.
  2. A new key which extends the current revocation window by 1. This
key is to be used for new commitment transactions.
  3. A new hash which also extends the current revocation window by 1.
This hash is to be used for new HTLC revocation hashes.
2016-06-30 11:59:46 -07:00
Olaoluwa Osuntokun
7c7ed5e638
lnwire: add a LogIndex field to CommitSignature
This commit updates the CommitSignature message to match the latest
version of the state-machine protocol. The log index specifies up to
which index in the receiver’s HTLC log the sender’s signature covers.
2016-06-30 11:58:39 -07:00
Olaoluwa Osuntokun
bba9b665ef
lnwire: all hashes within the protocol are now 32-bytes
We now enforce that the site of all revocation pre-images+hashes (used
for HTLC’s) are now 32-bytes.

Additionally, all payment pre-images are now required to be 32-bytes
not he wire. There also exists a Script level enforcement of the
payment pre-image size at a lower level.

This commit serves to unify the sizes of all hashes/pre-images across
the codebase.
2016-06-30 11:53:21 -07:00
Olaoluwa Osuntokun
fd02c1c1aa
lnwire: update single funder workflow to use revocation keys
This commit updates the messages sent during a single funder workflow
to utilize revocation keys rather than revocation hashes. This now
matches the latest updates to the commitment transaction.

The changes to the workflow are as follows:
  * the response message now carries the responder’s revocation key
  * the complete message now carries the initiator’s revocation key

Once the initiator receives the response message, it can construct both
versions of the commitment transaction as it now knows the responder’s
commitment key. The initiator then sends their initial revocation key
over to the responder allowing it to construct the commitment
transactions and give the initiator a sig for their version.
2016-06-30 11:50:27 -07:00
Olaoluwa Osuntokun
3c11006b12
lnwire: add forgotten godoc comment for SFR 2016-06-21 13:13:10 -07:00
Olaoluwa Osuntokun
6c7880ef76
lnwire: channels are now identified by outpoint
This commit modifies most of the wire messages to uniquely identify any
*active* channels by their funding output. This allows the wire
protocol to support funding transactions which open several channels in
parallel.

Any pending channels created by partial completion of the funding
workflow are to be identified by a uint64 initialized by both sides as
follows: the initiator of the connection starts from 0, while the
listening node starts from (1 << 63). These pending channel identifiers
are expected to be monotonically increasing with each new funding
workflow between two nodes. This identifier is volatile w.r.t to each
connection initiation.
2016-06-21 13:13:07 -07:00
Olaoluwa Osuntokun
3b6e456371
lnwire: revamp previous encode/decode tests to passing state 2016-05-30 20:52:25 -07:00
Olaoluwa Osuntokun
83b11c5efe
lnwire: fix writeElement [][20]byte bug
Passing the [20]byte as a *[20]byte results in a type switch error as
there isn’t a case for that type within writeElement.
2016-05-30 20:52:17 -07:00
Olaoluwa Osuntokun
4d763e07f7
lnwire: add basic encode/decode tests for single funder workflow 2016-05-30 20:52:13 -07:00
Olaoluwa Osuntokun
9978d889b7
lnwire: add missing cases in [read/write]Element
Add cases to encode/decode wire.OutPoint, and a final line to properly
write out signatures fully.
2016-05-30 15:45:01 -07:00
Olaoluwa Osuntokun
913ae259de
lnwire: document commitment+HTLC update msgs
This commit adds some cursory documentation along wit minor field
modifications to all messages which deal with adding HTLC’s, or
updating remote commitment transactions.

The messages for dual funding of channel is left purposefully
undocumented as all initial negotiations will be single funder by
default.

A revamp of the testing infrastructure of lnwire will be committed in
the near future.
2016-05-23 13:54:41 -07:00
Olaoluwa Osuntokun
b202831868
lnwire: update/document [read/write]Element funcs 2016-05-23 13:51:26 -07:00
Olaoluwa Osuntokun
2073fa42a7
lnwire: document lnwire specific data structures 2016-05-23 13:50:39 -07:00
Olaoluwa Osuntokun
a30831aef8
lnwire: update and document message.go 2016-05-23 13:49:14 -07:00
Olaoluwa Osuntokun
0563205e6d
lnwire: update isValidPkScript for segwit scripts 2016-05-23 13:48:17 -07:00
Olaoluwa Osuntokun
8dc284db02
lnwire: update tests to new wire.TxIn API
Syncing to match upstream btcd segwit branch.
2016-05-23 13:47:29 -07:00
Olaoluwa Osuntokun
1a617fcccb
lnwire: add SingleFundingOpenProof message
The SFOP is the final message sent during the single funding channel
negotiation protocol. Once Alice sends the SFOP message to Bob, Bob
will then commit resources to watching and updating the newly created
channel with Alice.
2016-05-23 13:46:48 -07:00
Olaoluwa Osuntokun
18314f73ae
lnwire: document and update SingleFundingResponse 2016-05-23 13:46:26 -07:00
Olaoluwa Osuntokun
3bf2d62035
lnwire: document start of single funder workflow
This commit adds some additional documentation in the form of comments
to the start of the revised single funder workflow.

A primary change lies in the introduction of the exchange of Channel
Derivation Points (CDP’s) for both sides. Using CDP’s we can derive
channel authentication proofs which are both unforgettable and binding.
2016-05-23 13:40:45 -07:00
Olaoluwa Osuntokun
f799ff3b66
lnwire: add SingleFundingSignComplete msg to workflow
This commit adds the SingleFundingSignComplete message to the single
funder transaction workflow. This marks the second to last message sent
in the workflow. The message transports Bob’s signature for the
commitment transaction, allowing Alice to broadcast the funding
transaction as she can now refund her inputs.
2016-05-22 22:29:52 -07:00
Olaoluwa Osuntokun
59a65518c1
lnwire: add SingleFundingComplete to single funder
This commit adds the SingleFundingComplete message to the single funder
channel workflow. This is the 3rd message sent in the workflow,
traveling from Alice to Bob once Alice is able to construct the final
commitment transaction.
2016-05-22 22:25:52 -07:00
Joseph Poon
566bf47cbf Wire update
More in sync with other code! :D
2016-05-17 21:28:42 -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
Joseph Poon
5218dca5b6 Simplified the commitment messages 2016-04-11 00:55:48 -07:00
Joseph Poon
48667bdcbe Updated Commit Revocation 2016-03-17 16:51:30 -07:00
Joseph Poon
4b8a8f410a Commit message update
Doesn't need to use a list, only needs to show each party's most recent
state.
2016-03-15 16:22:41 -07:00
Joseph Poon
bf4b43d3f2 Updated coin amounts to use int64
(currently for convenience on development)
2016-02-29 00:45:38 -08:00
Tadge Dryja
2367300d71 Merge branch 'uspvdev' 2016-02-26 13:23:00 -08:00
Joseph Poon
e940e92823 Updated wire to use int64 2016-02-18 04:29:08 -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
Joseph Poon
f2a1c0368a Cleanup comments & removed notes on escrow 2016-01-16 17:14:35 -08:00
Joseph Poon
84c0f56330 lnwire/README.md: Hopefully this will be legible 2016-01-16 17:11:04 -08:00
Joseph Poon
f3ce558eb1 typo fix 2016-01-14 23:58:05 -08:00
Joseph Poon
5fc1ff52fc Typo correction 2016-01-14 23:58:04 -08:00
Joseph Poon
1981001a29 Started working on state machine
* Added description in lnwire/README.md for state machine
* Figured out mutex stuff...
* Started the State Machine (using dummy functions for net/db)
* Minor corrections in wire protocol (changed some names/types)
    - Renamed StagingID to HTLCKey of type HTLCKey (uint64)
2016-01-14 23:58:04 -08:00
Joseph Poon
b4c644c99a Added Error message type to wire protocol 2016-01-14 23:56:10 -08:00
Joseph Poon
f3849f5c10 Structs for Wire Protocol HTLCs and Commitments
* Structs and wire messages for HTLCs
* Wire protocol for a state machine with no blocking(!!!)
  (I will write the state machine)
  TL;DR: Can do multiple HTLC modifications in-flight, dead simple wire
  protocol. Both sides can update their Commitments unliaterally without
  waiting for the other party's signature. Will have basic/preliminary
  notes in the README
* Added **swp to .gitignore because of vim annoyances
2016-01-14 23:56:10 -08:00
Tadge Dryja
919b0002b1 put MSGID bytes back in to lnwire 2016-01-14 23:56:09 -08:00
Joseph Poon
8cc057bbd4 Cooperative Close 2016-01-14 23:56:09 -08:00
Joseph Poon
bf8e0d727d Added ReservationID for funding_requeset 2016-01-14 23:56:09 -08:00
Joseph Poon
84df87255f Oops typo 2016-01-14 23:56:09 -08:00
Joseph Poon
b3f812e5da Notes on payment amount 2016-01-14 23:56:09 -08:00
Joseph Poon
266c121510 Changed type in Accept/Complete & lnwire refactor
* FundingSignAccept and FundingSingComplete had *[]btcec.Signature and
  instead it's now []*btcec.Signature to match other slice types.
* Refactored lnwire's when doing readElement/writeElement on slices
2016-01-14 23:56:09 -08:00
Joseph Poon
2d3253b95d Cleanup
* Bugfixes
* Removed whether to include sigs in txin for readElement/writeElement
2016-01-14 23:56:09 -08:00
Joseph Poon
0d4c78e90d FundReq/FundResp update / Refactor tests
* Added field
* Renamed FundingAmount and ReserveAmount to specify in FundingRequest
  and FundingResponse that it is for RequesterFundingAmount or
  ResponderFundingAmount
* Added PaymentAmount field to FundingRequest
* Added MinDepth field to FundingRequest and FundingResponse
* Fixed .Serialize() to show inputs/etc. only if there are fields
  available (prevents trying to dereference nil value)
* Add a bunch of Validate() conditions
* MASSIVE REFACTOR of tests (removed tons of redundancy)
2016-01-14 23:56:08 -08:00
Joseph Poon
a93b6dcee4 Messages for funding flow.
This is the most different due to segwit (the rest of the messages are
simple).

I still need to simplify/refactor the tests, they're "messy".
2015-12-30 05:38:57 -08:00
Joseph Poon
47801bd927 Script fix and notes reflecting wire protocol change 2015-12-29 17:10:00 -08:00
Joseph Poon
6a9011654a "typo" correction 2015-12-29 05:46:51 -08:00
Joseph Poon
ba56797b43 Ohhh... right. 2015-12-29 05:46:03 -08:00
Joseph Poon
1e79ad7236 Minor note 2015-12-29 05:43:07 -08:00
Joseph Poon
02a9b1e237 While making things match closely with Rusty's wire protocol, I noticed
he didn't allow for multiple HTLCs. Gotta explain the rationale for that
that... will merge the progress in the next commit tomorrow.
2015-12-29 05:24:02 -08:00
Joseph Poon
161b1b5e4c Message interface and stuff.
* Added Message interface (similar to btcd's)
* Moved Funding Request to its own file
* Refacored Funding Request Code (*MUCH* better)
* Various fixes
2015-12-28 03:24:16 -08:00
Joseph Poon
f51a5a6458 Holy shit pointer crap was annoying! Serialize/deserialize works now.
Running "go test -v" will show the serialization and deserialization.

Doing the rest of the wire stuff should be *much* faster since I figured
everything out...
2015-12-26 23:52:20 -08:00
Joseph Poon
0c0900006d Upon further reflection Our/Their seperation makes no sense 2015-12-26 20:37:17 -08:00
Joseph Poon
b79d0cc65a (still need to fix deserialize... io wasn't working so I'm using bytes) 2015-12-26 18:23:58 -08:00
Joseph Poon
09f07770fd Funding request serialize/deserialize (io reader/writer and pointers
were very confusing -_-;)
2015-12-26 18:20:25 -08:00
Joseph Poon
fc9ebb52f3 Refactor funding request, will separate to multiple files later 2015-12-23 00:08:34 -08:00