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127 commits

Author SHA1 Message Date
SomberNight
944e4f0ba0 implement data_loss_protect 
so that we can spend their_ctx_to_remote even when we lost our state
but have an old backup
 2019-08-20 09:03:12 +02:00
SomberNight
fdf8d8609b lnpeer: make feature-bit testing easier 
so that we can always test like: self.localfeatures & FEATURE_BIT_OPT
 2019-08-20 09:03:12 +02:00
SomberNight
014b921393 lnpeer: reestablish_channel - replay un-acked local updates 
Replay un-acked local updates (including commitment_signed) byte-for-byte.
If we have sent them a commitment signature that they "lost" (due to disconnect),
we need to make sure we replay the same local updates, as otherwise they could
end up with two (or more) signed valid commitment transactions at the same ctn.
Multiple valid ctxs at the same ctn is a major headache for pre-signing spending txns,
e.g. for watchtowers, hence we must ensure these ctxs coincide.
 2019-08-20 09:03:12 +02:00
SomberNight
e81ae1921b lnpeer: reestablish_channel - discard unsigned remote updates 2019-08-20 09:03:12 +02:00
SomberNight
c046f2cc1c lnhtlc: move 'next_htlc_id' from ChannelConfig to lnhtlc log 2019-08-20 09:03:12 +02:00
SomberNight
c8b19aec2a lnpeer: make reestablish_channel saner 
clear up expectations about ctns
 2019-08-20 09:03:12 +02:00
SomberNight
bdbc662a36 lnpeer: channel_reestablished is now a queue (instead of future) 2019-08-20 09:03:12 +02:00
SomberNight
0d84873a75 lnchannel: trivial clean-up 2019-08-20 09:03:12 +02:00
ThomasV
fa3eefa479 refactor a few lnchannel methods 2019-08-20 09:03:12 +02:00
ThomasV
f7c05f2602 Synchronize watchtower asynchronously: 
- remove remote_commitment_to_be_revoked
- pass old ctns to lnsweep.create_sweeptxs_for_watchtower
- store the ctn of sweeptxs in sweepStore database
- request the highest ctn from sweepstore using get_ctn
- send sweeptxs asynchronously in LNWallet.sync_with_watchtower
 2019-08-20 09:03:12 +02:00
SomberNight
f060e53912 (trivial) fix type annotation 2019-08-20 09:03:12 +02:00
SomberNight
087994e39a lnchannel: move fee update logic to lnhtlc (and hopefully fix it) 2019-08-20 09:03:12 +02:00
ThomasV
3d7f7dfc82 revamp fee updates (draft) 2019-08-20 09:03:12 +02:00
SomberNight
7431aac5cd lnhtlc: (fix) was locking in too many updates during commit/revoke 2019-08-20 09:03:12 +02:00
ThomasV
b55f9e9e6a Do not route through channels for which we did not receive 
both updates, because this often means one of the nodes is
offline.
 2019-08-20 09:03:12 +02:00
ThomasV
2be68ac4d2 Use one LNWatcher instance per wallet 2019-08-20 09:03:12 +02:00
ThomasV
a8ce8109be Perform breach remedy without sweepstore: 
- add functions to lnsweep
 - lnworker: analyze candidate ctx and htlc_tx
 - watchtower will be optional
 - add test for breach remedy with spent htlcs
 - save tx name as label
 2019-08-20 09:03:12 +02:00
ThomasV
f2d58d0e3f optimize channel_db: 
- use python objects mirrored by sql database
 - write sql to file asynchronously
 - the sql decorator is awaited in sweepstore, not in channel_db
 2019-08-20 09:03:12 +02:00
ThomasV
06b5299b0f comment out convert, add logging statement 2019-08-20 09:03:12 +02:00
SomberNight
7e8be3d2e7 lnpeer: some exception handling clean up 
main_loop should dump traces of unexpected exceptions to log.
Coroutines/functions invoked inside main_loop should simply propagate it
up the chain.
Typical exceptions are handled in handle_disconnect without dumping the trace.
 2019-08-20 09:03:12 +02:00
ThomasV
70cd29f9e1 GUI refactoring for Kivy and lightning. 
This also touches Qt and wallet code.
 2019-08-20 09:03:12 +02:00
ThomasV
67f1ade798 send data_loss_protect fields if we support it 2019-08-20 09:03:12 +02:00
ThomasV
9eddb9844c on_commitment_signed: distinguish between exceptions 2019-08-20 09:03:11 +02:00
SomberNight
69bffac86a lnhtlc: fix adding htlc between sending commitment_signed and receiving revoke_and_ack 2019-08-20 09:03:11 +02:00
ThomasV
7be4cdaf18 redeem htlcs: 
- fix bug in lnsweep: lnwatcher transactions were indexed by prev_txid
 - add test for breach remedy with unsettled htlcs
 - add timeout option to lnpay, and replace DO_NOT_SETTLE with SETTLE_DELAY
   so that we can read intermediate commitment tx in regtest
 2019-08-20 09:03:11 +02:00
SomberNight
acbb458ef7 set default to_self_delay to 1 day 2019-08-20 09:03:11 +02:00
SomberNight
6d8c605307 move lnworker.first_block to constants 2019-08-20 09:03:11 +02:00
SomberNight
a0764c017c lnpeer: process gossip in chunks 2019-08-20 09:03:11 +02:00
ThomasV
6d9ef29690 redo LNWorker pay: 
- wait until htlc has been fulfilled
 - raise if htlc is not fulfilled
 - return boolean success
 - try multiple paths in GUI
 2019-08-20 09:03:11 +02:00
ThomasV
a5570d94f3 channel blacklist: minor fix 2019-08-20 09:03:11 +02:00
ThomasV
3c0df28c98 do not include 'force_closing' in channel states, because it is not part of the peer protocol 2019-08-20 09:03:11 +02:00
ThomasV
eb4e6bb0de improve filter_channel_updates 
blacklist channels that do not really get updated
 2019-08-20 09:03:11 +02:00
ThomasV
f4b3d7627d query_short_channel_ids: use Event instead of Lock 2019-08-20 09:03:11 +02:00
ThomasV
d30e894aaf fix: add_channel_update 2019-08-20 09:03:11 +02:00
ThomasV
b055eeace2 prune channels older than two weeks from database 2019-08-20 09:03:11 +02:00
ThomasV
522ce5bb9f verify channel updates in peer's TaskGroup 2019-08-20 09:03:11 +02:00
ThomasV
308dc6aa6b use a single queue for gossip messages, so that they are processed in the correct order 2019-08-20 09:03:11 +02:00
ThomasV
e68f318b12 verify node and channel announcements before entering sql lock 2019-08-20 09:03:11 +02:00
SomberNight
fbafc77f01 lnpeer query_short_channel_ids: BOLT-07 says ids must be sorted 
this is why most remote peers were disconnecting upon receiving this msg
 2019-08-20 09:03:11 +02:00
SomberNight
afc5717cf0 lnpeer reply_channel_range: handle lnd 2019-08-20 09:03:11 +02:00
ThomasV
0e42fd9f17 parallelize short_channel_id requests 2019-08-20 09:03:11 +02:00
ThomasV
1011245c5e LNGossip: sync channel db using query_channel_range 2019-08-20 09:03:11 +02:00
SomberNight
cc57da704b logging: adapt lightning branch to logging changes 2019-08-20 09:03:11 +02:00
ThomasV
730be17aba Use separate lightning nodes for gossip and channel operations. 2019-08-20 09:03:11 +02:00
ThomasV
dac686b11d minor fix 2019-08-20 09:03:11 +02:00
ThomasV
796f199a5b follow-up prev commit 2019-08-20 09:03:11 +02:00
ThomasV
a6469904ee fix verify_sig_for_channel_update: use raw message 2019-08-20 09:03:11 +02:00
ThomasV
407114d3cc lnpeer: 
- disable option data_loss_protect
 - disable query_short_channel_ids
 - increase timeouts in pay
 2019-08-20 09:03:11 +02:00
ThomasV
f0ac81419c increase timeout in open_channel 2019-08-20 09:03:11 +02:00
ThomasV
5eab60621d lnpeer: 
- send data_loss_protect fields with channel_reestablish
 - close connection if we receive an unknown channel_reestablish
 - log all exceptions that make us close a connection
 - formatting
 2019-08-20 09:03:11 +02:00