Commit Graph

19 Commits

Author SHA1 Message Date
Bjarne Magnussen
6ab625d69b
chanfunding: factor out sanity check for change that is dust 2021-04-13 11:37:20 +02:00
Bjarne Magnussen
59c40ec8b4
chanfunding: fee estimation based on change output in CoinSelect
Add a dust-limit to `CoinSelect` and let the fee estimation consider if a change output is needed or not, assuring that if the change is below the dust-limit it will go towards the fee instead.
2021-04-13 11:37:12 +02:00
Bjarne Magnussen
235e73205d
chanfunding: refactor fee estimate calculation 2021-04-12 14:39:38 +02:00
Johan T. Halseth
4a4e0c73f7
lnwallet/chanfunding: add Inputs/Outputs to assemblers
This will be used to try to estimate how much the funding transaction
will decrease our wallet balance.
2021-01-19 10:53:45 +01:00
Bjarne Magnussen
0e2d6dc0a9
chanfunding: match error string when testing CoinSelectSubtractFees 2020-11-04 18:54:57 +01:00
Bjarne Magnussen
493bc27ec2
chanfunding: fix tiny typo 2020-11-04 18:54:57 +01:00
Bjarne Magnussen
c56457c869
chanfunding: add test for a non-zero change 2020-11-04 18:54:57 +01:00
Bjarne Magnussen
07549d50ff
chanfunding: assure logic for high-fee
Without this change the high-fee logic is never tested as it is instead caught by the dust-output logic. This change uses a higher fee rate to ensure an output value above the dust limit, while still spending 20% on fees.
2020-11-04 18:54:57 +01:00
Bjarne Magnussen
9e825e6c0f
chanfunding: assure logic for dust output
Without this change the fee for the test case is above 20% and hence the error could be caught by the high-fee logic instead.
2020-11-04 18:54:57 +01:00
Oliver Gugger
936a83858b
chanfunding: use util functions from psbt package 2020-10-03 10:34:39 +02:00
Oliver Gugger
1c832cbce7
chanfunding: verify inputs are signed in raw tx 2020-09-15 08:30:22 +02:00
Oliver Gugger
d581cd02fc
chanfunding: extract FinalizeRawTX into own method
As a preparation to also allow the final TX to be specified in the raw
wire format, we extract the check of the final transaction into its own
method.
2020-09-15 08:30:22 +02:00
Oliver Gugger
258996233f
lnwallet+rpcserver: add no_publish flag to PSBT assembler 2020-07-08 17:12:57 -07:00
Oliver Gugger
126f79dbb1
chanfunding: add PSBT assembler and intent
We add a new funding assembler and intent type that handle channel
funding through the use of a PSBT. The PsbtIntent is in itself a
simple state machine that can be stepped through the process of
assembling the required information for the funding output, verifying
a user supplied PSBT for correctness, accepting a fully signed PSBT
and then assembling the funding wire message.
2020-03-31 09:17:23 +02:00
Olaoluwa Osuntokun
8bce48d3cc
lnwallet/chanfunding: add new ThawHeight() method to ShimIntent+CannedAssembler
As frozen channels can only be created via the non-default channel
assembler, we extend both the ShimIntent and CannedAssembler to also
accept and expose this new channel status along with the thaw height.
2020-03-23 16:56:57 -07:00
ErikEk
4e47181b99 trivial: typo fix 2020-03-19 05:43:49 +01:00
Olaoluwa Osuntokun
bc176b5aa3
rpc+lnwallet: implement new FundingStateStep RPC method
In this commit, we implement the currently defined transition methods
for the new `FundingStateStep` method. At this point, we're now able to
serve the "responder" of the externally initiated channel funding flow
by being able to register and cancel a funding flow according to its
expected pending channel ID.
2019-12-20 19:09:44 -08:00
Olaoluwa Osuntokun
d422ebbc66
lnwallet/chanfunding: introduce new channel funding abstractions
In this commit, we introduce a series of new abstractions for channel
funding. The end goal is to enable uses cases that construct the funding
transaction externally, eventually handing the funding outpoint to lnd.
An example of such a use case includes channel factories and external
channel funding using a hardware wallet.

We also add a new chanfunding.Assembler meant to allow external channel
funding in contexts similar to how channel factories
can be constructed. With this channel funder, we'll only obtain the
channel point and funding output from it, as this alone is enough to
carry out a funding flow as normal.
2019-12-02 17:11:32 -06:00
Olaoluwa Osuntokun
9eefdef262
chanfunding+lnwallet: move coin selection code into new chanfunding package
In this commit, we make an incremental change to move the existing coin
selection code into a new chanfunding package. In later commits, this
package will grow to serve all the lower level channel funding needs in
the daemon.
2019-12-02 17:11:25 -06:00