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135 commits

Author SHA1 Message Date
SomberNight
f5eb91900a
use correct feerate when sweeping htlcs 
fixes #6131
 2020-04-30 19:37:06 +02:00
SomberNight
f52072e169
follow-up prev 
we can't just test with a 1 msat htlc as that might be below htlc_minimum_msat
 2020-04-18 18:51:20 +02:00
ThomasV
9224404108 Move callback manager out of Network class 2020-04-14 18:29:51 +02:00
SomberNight
12283d625b
(trivial) rename lnchannel.channel_states to ChannelState 2020-04-13 16:02:05 +02:00
SomberNight
8e8ab775eb
lnchannel: make AbstractChannel inherit ABC 
and add some type annotations, clean up method signatures
 2020-04-13 15:57:53 +02:00
ThomasV
e50f6d29ed export channel backup from kivy gui 2020-04-10 20:04:24 +02:00
ThomasV
74517c88ad do not use short_channel_id as state, use channel state for that. 
display it as soon as the funding tx is mined.
 2020-04-10 15:10:50 +02:00
ThomasV
8f41aeb783 Replace wallet backup with channel backups 
- channels can be backed up individually
 - backups are added to lnwatcher
 - AbstractChannel ancestor class
 2020-04-10 14:45:23 +02:00
ThomasV
55d0a9587e move maybe_save_short_chan_id to lnchannel 2020-04-06 18:35:12 +02:00
ThomasV
aa32e31a3d follow-up previous commit 2020-04-03 18:54:02 +02:00
ThomasV
06dfe1699c LNWatcher: Distinguish between blockchain-triggered channel state 
transitions, and actions taken as a result.
- state transitions are performed in lnchannel.update_onchain_state()
- peer actions are in LNWorker.on_channel_update()
 2020-04-03 17:34:11 +02:00
ThomasV
5067166e1e move should_channel_be_closed_due_to_expiring_htlcs into Channel class 2020-04-02 17:18:50 +02:00
SomberNight
3a73f6ee5c
lnmsg.decode_msg: dict values for numbers are int, instead of BE bytes 
Will be useful for TLVs where it makes sense to do the conversion in lnmsg,
as it might be more complicated than just int.from_bytes().
 2020-04-01 21:39:52 +02:00
SomberNight
4c10a830f3
lnmsg: rewrite LN msg encoding/decoding 2020-04-01 21:39:48 +02:00
SomberNight
79d57784c1
lnchannel: add more type hints 2020-03-30 03:49:50 +02:00
SomberNight
db84de5493
trivial: use "chunks()" for htlc_sigs in lnchannel 2020-03-30 02:46:25 +02:00
SomberNight
8ad6d5ddda
lnchannel: clean-up docstrings a bit 
Removed lnd copyright as by now everything covered in this file
has been rewritten.
 2020-03-30 02:46:21 +02:00
SomberNight
acb0d7ebac
lnchannel: better checks for "update_add_htlc" 
I believe this now implements all the checks listed in BOLT-02 for
update_add_htlc, however, the BOLT is sometimes ambiguous,
and actually the checks listed there IMO are insufficient.
There are still some TODOs, in part because of the above.
 2020-03-30 02:46:18 +02:00
SomberNight
7498271927
follow-up prev: htlc direction madness 
Sometimes direction was relative sometimes absolute... ?!
No. Make it always relative (to subject).
 2020-03-28 16:29:39 +01:00
SomberNight
5b7ce98ab2
lnchannel: fix included_htlcs 2020-03-27 19:06:30 +01:00
SomberNight
3ed6afce64
lnchannel: implement freezing channels (for receiving) 
A bit weird, I know... :)
It allows for rebalancing our own channels! :P
 2020-03-26 09:05:15 +01:00
SomberNight
5c8455d00b
lnchannel: when adding HTLCs, run checks for both directions 2020-03-26 09:05:08 +01:00
SomberNight
53c6fc8cf1
lnchannel: test for max htlc value (needs to be below protocol maximum) 2020-03-26 09:05:00 +01:00
SomberNight
777e350fae
lnchannel: partly fix available_to_spend 
we were looking at inconsistent ctns
and we were looking at the wrong subject's ctx

all the FIXMEs and TODOs here will still warrant some attention.

(note that test_DesyncHTLCs was passing incorrectly:
the "assertRaises" was catching a different exception)
 2020-03-26 09:04:55 +01:00
SomberNight
deb50e7ec3
lnchannel: implement "freezing" channels (for sending) 
and expose it in Qt GUI
 2020-03-26 03:32:44 +01:00
SomberNight
2cc76fbbbd
lnworker: fix type error re pending_payments, and impl malformed htlcs 
In old code, in lnpeer.htlc_switch(), "error" in lnworker.pending_payments
had incorrect type.

TODO: we need tests for payment failures...
 2020-03-17 20:32:38 +01:00
SomberNight
b524460fdf
lnpeer: implement basic handling of "update_fail_malformed_htlc" 2020-03-17 20:31:50 +01:00
SomberNight
ea0981ebeb
lnutil.UpdateAddHtlc: use attrs instead of old-style namedtuple 2020-03-17 20:31:11 +01:00
ThomasV
5bac2fea98 Qt: improve channel details window 2020-03-12 12:40:50 +01:00
ThomasV
fe2b40b83d Fix #6021: Do not transition channel state to CLOSED if tx is unconfirmed. 2020-03-11 11:49:53 +01:00
ThomasV
05a191cc6a (minor) simplification 2020-03-09 19:10:03 +01:00
ThomasV
3c111471e9 Fix bug with save_funding_height, save_closing_height 
(it would enter a state where only closing_height was saved)
 2020-03-07 10:39:49 +01:00
SomberNight
5b23d5ee97
lnchannel/lnhtlc: speed up balance calculation for recent ctns 
Move the balance calculation from lnchannel to lnhtlc.
Maintain a running balance in lnhtlc that is coupled with _maybe_active_htlc_ids
for practicality reasons.
 2020-03-07 05:05:05 +01:00
SomberNight
ec7473789e
lnhtlc: speed-up methods for recent ctns 
we maintain a set of interesting htlc_ids
 2020-03-06 21:54:05 +01:00
ThomasV
888a6d726e Propagate exceptions raise by force_close to the GUI. 
Define 'try_force_closing' for cases where we do not
want exceptions to be raised.
 2020-03-06 12:18:33 +01:00
ThomasV
15fb8c0415 allow transition from FORCE_CLOSING to REDEEMED. define REDEEM_AFTER_DOUBLE_SPENT_DELAY 2020-03-06 11:40:08 +01:00
ThomasV
28452e2d46 do not try to reestablish channel if state is FORCE_CLOSING 2020-03-06 11:25:34 +01:00
ThomasV
eaf4810220 (minor) fix typo 2020-03-06 09:59:43 +01:00
ThomasV
34e236c9b6 CLI: show channel reserves and unsettled balances. fixes #5817 2020-03-06 09:57:37 +01:00
SomberNight
fa0ef9c548
ln: store network addresses for channel counterparties in channels 
So we can reconnect to them without relying on gossip db.
 2020-03-06 04:04:17 +01:00
ThomasV
8f3fcdd1a8 Fix detection of payments. 
1. In lnhtlc, sent_in_ctn and failed_in_ctn need to look at the
remote ctx, and they need to be called when we receive a revocation,
not when we send one.

2. In lnchannel, we use 3 lnworker callbacks:
   - payment sent/payment failed (called when we receive a revocation)
   - payment received (called when we send a revocation)

3. Make revoke_current_commitment return a single value.
The second value was only used in tests, there is no need
to bloat the code with that
 2020-03-05 07:03:09 +01:00
ThomasV
b9eaba3e85 replace await_local/remote 2020-03-05 07:03:09 +01:00
ThomasV
cfc20845a2 lnworker: dissociate htlc forwarding and fulfillment 2020-03-02 11:54:08 +01:00
ThomasV
da67fda92a HTLC switch: 
- fulfills/fails/forwards HTLCs
- onion_packets are saved when update_add_htlc is received
 2020-03-02 11:19:04 +01:00
ThomasV
34400c0710 Set channel state to OPENING as soon as we receive 'funding_signed', 
instead of when the funding transaction has been broadcast, because
we have no reliable way to know when it will be broadcast.
 2020-02-27 18:12:20 +01:00
ThomasV
f5053cc242 follow-up e54c69b861: we must settle HTCLs after during shutdown 2020-02-27 14:40:58 +01:00
SomberNight
e54c69b861
add lnchannel.can_send_ctx_updates. just drop illegal updates for now 2020-02-26 20:35:46 +01:00
ThomasV
87fe2c7d7a define channel.has_pending_changes method 2020-02-26 19:08:48 +01:00
ThomasV
1c5dc79298 shutdown: 
- resend shutdown on reestablish
 - wait until no more pending updates before sending shutdown
 2020-02-26 16:06:28 +01:00
ThomasV
e85fb25146 lnpeer: verify signature in closing_signed 2020-02-26 12:58:40 +01:00