Commit Graph

683 Commits

Author SHA1 Message Date
Johan T. Halseth
3711597fef
input: remove duplicate commit weight constant 2020-01-06 12:08:25 +01:00
Johan T. Halseth
5e3718a1b5
lnwallet: use channel type to derive keys
We abstract away how keys are generated for the different channel types
types (currently tweak(less)).

Intention is that more of the logic that is unique for each commitment
type lives in commitment.go, making the channel state machine oblivious
to the keys and outputs being created on the commitment tx for a given
channel state.
2020-01-06 12:08:05 +01:00
carla
e0c86f1e71
htlcswitch+invoices: fail mpp timeouts with FailMPPTimeout
This commit adds a getResolutionFailure function
which returns an appropriate wire failure based
on the outcome of a htlc resolution. It also updates
 the MissionControlStore test to ensure that lnd
can handle failures which occur due to mpp timeout.
2019-12-20 13:02:02 +02:00
carla
d2e395d5f2
multi: replace errInvoiceNotFound with resolution result
This commit moves handling of invoice not found
errors into NotifyExitHopHtlc and exposes a
resolution result to the calling functions. The
intention of this change is to make calling
functions as naive of the invoice registry's
mechanics as possible.

When NotifyExitHopHtlc is called and an invoice
is not found, calling functions can take action
based on the HtlcResolution's InvoiceNotFound
outcome rather than having to add a special error
check on every call to handle the error.
2019-12-20 13:01:15 +02:00
carla
7b5dda0417
invoices: add resolution result to htlcResolution
This commit adds the resolution result obtained
while updating an invoice in the registry to
htlcResolution. The field can be used by calling
functions to determine the outcome of the
update and act appropriately.
2019-12-20 13:00:53 +02:00
carla
ebfbc48973
link+contractcourt: rename processHodlEvent to processHtlcResolution 2019-12-20 12:59:56 +02:00
carla
2c1eb17192
mutli: rename HodlEvent to HtlcResolution
This commit renames HodlEvent to HtlcResolution
to better reflect the fact that the struct is
only used for htlc settles and cancels, and that
it is not specifically used for hodl invoices.
2019-12-20 12:58:07 +02:00
Andras Banki-Horvath
44f13d1d60 invoices: adding InvoiceExpryWatcher to cancel expired invoices
This commit adds InvoiceExpryWatcher which is a separate class that
receives new invoices (and existing ones upon restart) from InvoiceRegistry
and actively watches their expiry. When an invoice is expired
InvoiceExpiryWatcher will call into InvoiceRegistry to cancel the
invoice and by that notify all subscribers about the state change.
2019-12-13 17:03:08 +01:00
Joost Jager
8b5bb0ac63
record: move CustomRecordSet 2019-12-12 00:12:19 +01:00
Joost Jager
499f2b16cf
invoices: add RegistryConfig struct 2019-12-11 16:08:07 +01:00
Joost Jager
ddb98fcc41
multi: distinguish between htlc in and out constraints 2019-12-11 00:16:57 +01:00
carla
94d3eb60a4
multi: Use user provided close address for cooperative closes
This commit is adapted from @Bluetegu's original
pull request #1462.

This commit reads an optional address to pay funds out to
from a user iniitiated close channel address. If the channel
already has a shutdown script set, the request will fail if
an address is provided. Otherwise, the cooperative close will
pay out to the address provided.
2019-12-10 09:13:01 +02:00
Joost Jager
37258c414c
hop: store custom records from payload 2019-12-10 06:54:22 +01:00
Joost Jager
cbe213fd0c
tlv: expose unknown values 2019-12-10 06:54:20 +01:00
Olaoluwa Osuntokun
06e8d1c5ca
htlcswitch: fix inconsistency between attribute name and godoc comment 2019-12-04 15:10:39 -08:00
Joost Jager
352334d470
lnrpc: re-enable custom records
This commit also renames the rpc field for consistency. As it wasn't
functional and the id doesn't change, this isn't considered a breaking
change.
2019-12-04 13:27:33 +01:00
Conner Fromknecht
3b253e05f6
multi: restructure invoice Terms field
This commit restructures an invoice's ContractTerms to better encompass
the restrictions placed on settling. For instance, the final ctlv delta
and invoice expiry are moved from the main invoice body (where
additional metadata is stored). Additionally, it moves the State field
outside of the terms since it is rather metadata about the invoice
instead of any terms offered to the sender in the payment request.
2019-11-22 02:25:02 -08:00
Conner Fromknecht
4c872c438b
channeldb: complete migration 12 for TLV invoices 2019-11-22 02:24:28 -08:00
Johan T. Halseth
d4d8b03d5b
Merge pull request #3705 from joostjager/payment-fail-log
routing+htlcswitch: improve failed payment logging
2019-11-15 10:41:48 +01:00
Olaoluwa Osuntokun
e2e94c3b6e
Merge pull request #3701 from joostjager/isolate-odd-even
tlv+hop: contain odd/even logic in payload parsing
2019-11-12 21:03:52 -08:00
Joost Jager
78ecc3d24b
htlcswitch/hop: always accept even custom tlv records
This commit prepares for sending and receiving of application-specific
custom tlv fields.
2019-11-12 16:18:27 +01:00
Joost Jager
048971b40b
tlv+hop: contain odd/even logic in payload parsing
Tlv is used more widely in lnd than just for the onion payload. This
commit isolated the protocol-specific odd/even logic, so that tlv can be
used freely elsewhere. An example of this use is db serialization.
2019-11-12 16:18:25 +01:00
Joost Jager
0d7119a8ca
cnct: parse onion for resolvers
With the introduction of additional payload fields for mpp, it becomes
a necessity to have their values available in the on-chain resolution
flow. The incoming contest resolver notifies the invoice registry of the
arrival of a payment and needs to supply all parameters for the registry
to validate the htlc.
2019-11-12 15:01:39 +01:00
Joost Jager
53076880f1
htlcswitch: report failure source index for forwarding errors 2019-11-12 14:13:29 +01:00
Joost Jager
de33010e90
htlcswitch/test: do not string match error 2019-11-12 14:13:25 +01:00
Joost Jager
b222b6e625
Merge pull request #3685 from cfromknecht/flat-features
flat features
2019-11-09 11:43:45 +01:00
Conner Fromknecht
16318c5a41
multi: merge local+global features from remote peer 2019-11-08 05:31:47 -08:00
Joost Jager
0b5afa64f3
htlcswitch: remove logCommitTick
Replace logCommitTick as a way to deal with revocation window exhaustion
by retrying to update the commit tx when the remote revocation is
received.

The rationale is that the revocation window always opens up because of a
revoke message that is received from the other party. It is therefore
not necessary to set a timer for this. The reception of the revoke
message is the trigger to send a new commit sig if necessary.
2019-11-06 09:21:33 +01:00
Joost Jager
ae67b1a4a4
htlcswitch/test: test revocation window exhaustion 2019-11-06 09:21:31 +01:00
Joost Jager
5078d662ef
htlcswitch: remove batch counter
Now that channel exposes the number of pending local updates, it is no
longer necessary to track the batch size separately in the link.
2019-11-06 09:21:29 +01:00
Joost Jager
2482d84d7d
htlcswitch: stop batch timer if there are no updates 2019-11-06 09:21:27 +01:00
Joost Jager
03b32d046a
htlcswitch+lnwallet: replace updateNeeded by check on channel itself
Instead of tracking local updates in a separate link variable, query
this state from the channel itself.

This commit also fixes the issue where the commit tx was not updated
anymore after a failed first attempt because the revocation window was
closed. Also those pending updates will be taken into account when the
remote party revokes.
2019-11-06 09:21:25 +01:00
Joost Jager
f59b4d62bf
htlcswitch: check for signature owed in link
Previously the channel method FullySynced was used to decide whether to
send a new commit sig message. However, it could happen that FullySynced
was false, but that we didn't owe a commitment signature. Instead we
were waiting on the other party to send us a signature. If that
happened, we'd send out an empty commit sig. This commit modifies the
condition that triggers a new commit sig and fixes this deviation from
the spec.
2019-11-06 09:21:23 +01:00
Joost Jager
64f4421d6c
htlcswitch/test: add test cases that triggers empty commit sig
Co-authored-by: Johan T. Halseth <johanth@gmail.com>
2019-11-06 09:21:21 +01:00
Conner Fromknecht
014ea0abd0
htlcswitch/iterator: remove unused ExtraOnionBlob method 2019-11-04 15:10:50 -08:00
Conner Fromknecht
9e9b912d3a
multi: replace NotifyExitHopHtlc eob param with hop.Payload 2019-11-04 15:10:32 -08:00
Conner Fromknecht
70708e2e71
htlcswitch: return hop.Payload from HopIterator 2019-11-04 15:10:15 -08:00
Conner Fromknecht
4a6f5d8d3d
htlcswitch/hop/payload: parse option_mpp 2019-11-04 15:10:00 -08:00
Olaoluwa Osuntokun
acd8a6e302
Merge pull request #3470 from cfromknecht/invalid-onion-payload
htlcswitch+lnwire: invalid onion payload
2019-11-01 18:58:00 -07:00
Olaoluwa Osuntokun
4592f87033
Merge pull request #3653 from Roasbeef/external-funding-chainfees
chainfees: create new chainfees package extracting fees from lnwallet
2019-10-31 17:44:00 -07:00
Olaoluwa Osuntokun
777ed104a3
chainfee: create new chainfee package extracting fees from lnwallet
In this commit, we create a new chainfee package, that houses all fee
related functionality used within the codebase. The creation of this new
package furthers our long-term goal of extracting functionality from the
bloated `lnwallet` package into new distinct packages. Additionally,
this new packages resolves a class of import cycle that could arise if a
new package that was imported by something in `lnwallet` wanted to use
the existing fee related functions in the prior `lnwallet` package.
2019-10-31 16:41:57 -07:00
Olaoluwa Osuntokun
a73ee28e46
multi: convert the existing channeldb.ChannelType uint8 into a bit field
In this commit, we convert the existing `channeldb.ChannelType` type
into a _bit field_. This doesn't require us to change the current
serialization or interpretation or the type as it is, since all the
current defined values us a distinct bit. This PR lays the ground work
for any future changes that may introduce new channel types (like anchor
outputs), and also any changes that may modify the existing invariants
around channels (if we're the initiator, we always have the funding
transaction).
2019-10-31 16:34:37 -07:00
Conner Fromknecht
cba523ae30
htlcswitch/hop/payload: apply known constraints if required failure
This commit modifies the NewPayloadFromReader to apply known
presence/omission contraints in the event that the tlv parser returns an
unknown required type failure.

Now that the parser has been modified to finished parsing the stream to
obtain a proper parsed type set, we can accurately apply these higher
level validation checks. This overrides required type failures, such
that they are only returned if the sender properly abided by the
constraints on fields for which we know.

The unit tests are updated to create otherwise valid payloads that then
return unknown required type failures. In one case, a test which
previously returned an unknown required type failure is made to return
an included failure for the sid, indicating the unknown required type 0
is being overruled.
2019-10-30 21:21:10 -07:00
Conner Fromknecht
937b781276
htlcswitch/hop/payload: extend tests to required type failures 2019-10-30 21:20:49 -07:00
Conner Fromknecht
3455f7965d
htlcswitch/link: return InvalidOnionPayload failure
This commit modifies the link return an InvalidOnionPayload failure when
it cannot parse a TLV payload. The offset is left at zero, since its
unclear how useful it will be in practice and would require some
significant reworkings of the abstractions in the tlv package.

TODO: add unit tests. currently none of the test unit infrastructure is
setup to handle TLV payloads, so this would require implementing a
separate mock iterator for TLV payloads that also supports injecting
invalid payloads. Deferring this non-trival effor till a later date
2019-10-30 21:19:53 -07:00
Conner Fromknecht
3c91c3a8ff
htlcswitch/hop/payload: required failures with ErrInvalidPayload
This commit adds a hop.PayloadViolation enum which encompasses the cases
where the sender omits, includes, or requires a type that causes an
ErrInvalidPayload faiulre.

The existing Omitted bool is converted to this PayloadViolation, and
NewPayloadFromReader is updated to return such a failure with a
RequiredViolation when an unknown required type is detected.

The unit tests are updated to cover the three possible cases of
RequiredViolations, as well as included valid intermediate and final hop
tests.
2019-10-30 21:19:08 -07:00
Joost Jager
200be87212
htlcswitch: fix returned failure for insufficient balance
In the scenario where the requested channel does not have enough balance
and another channel towards the same node generates a different failure,
we erroneously returned UnknownNextPeer instead of the expected
TemporaryChannelFailure.

This commit rewrites the non-strict forwarding logic in the switch to
return the proper failure message. Part of this is moving the link
balance check inside the link.
2019-10-23 09:57:34 +02:00
Joost Jager
e1b7cfe2e5
htlcswitch/test: test additional forwarding scenarios 2019-10-23 09:57:32 +02:00
Joost Jager
4ea8927845
htlcswitch/test: add forward mock result 2019-10-23 09:57:30 +02:00
Joost Jager
cb85095ab0
htlcswitch/test: assert on replied failure message 2019-10-23 09:57:28 +02:00