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42 Commits

Author SHA1 Message Date
SomberNight
6b43eac6fd lnonion: rm support for legacy (pre-TLV) onions 
see https://github.com/lightning/bolts/pull/962
 2023-06-29 14:34:06 +00:00
SomberNight
fc6486ecdb lnaddr: make payment_secret field mandatory, in both directions 
we now require payment_secret both for sending and for receiving
(previously was optional for both)

see
https://github.com/lightning/bolts/pull/898
https://github.com/ACINQ/eclair/pull/1810
https://github.com/ElementsProject/lightning/pull/4646

note: payment_secret depends on var_onion_optin, so that becomes mandatory as well,
however this commit does not yet remove the ability of creating legacy onions
 2023-06-29 14:34:02 +00:00
SomberNight
373db76ac9 util: kill bh2u 
no longer useful, and the name is so confusing...
 2023-02-17 11:43:11 +00:00
ThomasV
c109d5e722 lnwire: update csv files with recent BOLTs 
Note: there are no more optional fields in msgdata, per f068dd0d8d
 2023-01-13 12:50:48 +01:00
SomberNight
1b6706bed6 replace some erroneous usages of IntFlag with IntEnum 2022-06-29 18:07:03 +02:00
Benoit Verret
f731c38293 Minor style changes 2021-03-21 00:36:23 -04:00
SomberNight
65e16fabd2 follow-up d8352f1a0a 
message-induced exceptions should not propagate out
 2021-03-19 21:21:09 +01:00
SomberNight
d8352f1a0a lnworker: nicer logs/error msgs for payment failure 
try to decode onion error and log it in human-readable form
 2021-03-19 19:13:50 +01:00
ThomasV
51f3c613a5 (minor) fix typos and indentation 2021-03-03 10:03:29 +01:00
SomberNight
691ebaf4f8 lnworker/lnpeer: add some type hints, force some kwargs 2021-02-24 20:03:12 +01:00
ThomasV
152894e6a9 calc_hops_data: total_msat should be optional 2021-02-24 16:14:19 +01:00
bitromortac
9f84fa9580 lnonion: add total_msat to onion payment data 2021-02-22 11:25:00 +01:00
ThomasV
cf818fe08c Trampoline routing: 
- add support for trampoline forwarding
 - add regtest with trampoline payment
 2021-02-17 17:28:56 +01:00
ThomasV
ded449233e Trampoline routing. 
- trampoline is enabled by default in config, to prevent download of `gossip_db`.
   (if disabled, `gossip_db` will be downloaded, regardless of the existence of channels)
 - if trampoline is enabled:
    - the wallet can only open channels with trampoline nodes
    - already-existing channels with non-trampoline nodes are frozen for sending.
 - there are two types of trampoline payments: legacy and end-to-end (e2e).
 - we decide to perform legacy or e2e based on the invoice:
    - we use trampoline_routing_opt in features to detect Eclair and Phoenix invoices
    - we use trampoline_routing_hints to detect Electrum invoices
 - when trying a legacy payment, we add a second trampoline to the path to preserve privacy.
   (we fall back to a single trampoline if the payment fails for all trampolines)
 - the trampoline list is hardcoded, it will remain so until `trampoline_routing_opt` feature flag is in INIT.
 - there are currently only two nodes in the hardcoded list, it would be nice to have more.
 - similar to Phoenix, we find the fee/cltv by trial-and-error.
    - if there is a second trampoline in the path, we use the same fee for both.
    - the final spec should add fee info in error messages, so we will be able to fine-tune fees
 2021-02-17 17:28:13 +01:00
ThomasV
87a080d30e split code in htlc_switch: 
- raise OnionRoutingFailure whenever we want to fail a htlc
 - catch that exception in htlc_switch
 - this will avoid code duplication in the case of trampoline
 2021-02-11 06:19:17 +01:00
ThomasV
ef5a265449 basic_mpp: receive multi-part payments 2021-02-04 16:31:17 +01:00
SomberNight
89ddc1345d lnutil.PaymentAttemptLog: fix error formatting 
fixes #6249
 2020-06-22 03:40:04 +02:00
ThomasV
c1b1638615 fix htlc forwarding: 
- persist fail_htlc error messages
 - do not rely on payment_hash in htlc_switch
 2020-05-05 09:23:48 +02:00
SomberNight
1be0a710c3 ln: implement option payment_secret 2020-04-01 21:49:12 +02:00
SomberNight
d424487814 lnpeer: better error handling when processing onion packets 2020-04-01 21:47:45 +02:00
SomberNight
30bf32b34b use option varonion: actually use TLV payloads, and signal support 2020-04-01 21:47:42 +02:00
SomberNight
4b78bf94d4 lnaddr: add feature bit support to invoices 
see https://github.com/lightningnetwork/lightning-rfc/pull/656
 2020-04-01 21:42:52 +02:00
SomberNight
a66437f399 lnonion: implement basis of varonion support 2020-04-01 21:42:48 +02:00
SomberNight
b524460fdf lnpeer: implement basic handling of "update_fail_malformed_htlc" 2020-03-17 20:31:50 +01:00
SomberNight
5e59d1a0ed lnonion: use random starting bytes in Sphinx packet as in updated BOLT4 
see https://github.com/lightningnetwork/lightning-rfc/pull/697
 2020-03-16 04:37:52 +01:00
SomberNight
18f3a37032 crypto: move LN-related chacha20/poly1305 code into crypto.py 2020-03-04 17:58:43 +01:00
SomberNight
a32af44ff9 trivial clean-up (typing/imports) 2020-02-28 20:27:35 +01:00
SomberNight
b99add59c3 lnworker: introduce PaymentAttemptLog NamedTuple 2019-12-10 03:17:57 +01:00
SomberNight
2a604b1676 lnonion: get_failure_msg_from_onion_error might raise in python 3.7 
this used to work in py3.6 but raises in py3.7 :(
(see https://bugs.python.org/issue34536)
 2019-10-12 00:05:38 +02:00
SomberNight
509df9ddaf create class for ShortChannelID and use it 2019-09-06 18:09:05 +02:00
SomberNight
d2d4d19fcb lnpeer: add a few sanity checks to payment-forwarding (and related) 2019-08-20 09:03:12 +02:00
ThomasV
d493dd1953 add pycryptodomex to requirements 2019-08-20 09:03:11 +02:00
SomberNight
9256472485 rm 'cryptography' as dependency; use new pycryptodomex version 
pycryptodomex 3.7 implemented chacha20_poly1305 and chacha20,
and it is already used (although optionally) to speed up AES,
so we can remove cryptography and make pycryptodomex mandatory for LN
 2019-08-20 09:03:11 +02:00
SomberNight
f70e679aba some more type annotations that needed conditional imports 2019-08-20 09:03:10 +02:00
SomberNight
7edbd5682a fix confusion re max path length 2019-08-20 09:03:10 +02:00
SomberNight
2fafd01945 protect against getting robbed through routing fees 2019-08-20 09:03:10 +02:00
SomberNight
d511ecdc00 start failing htlcs 2019-08-20 09:03:10 +02:00
SomberNight
ded11b4d9e lnonion: implement error packet construction 2019-08-20 09:03:10 +02:00
SomberNight
3ac9858d59 follow-up prev 2019-08-20 09:03:10 +02:00
SomberNight
a8ace7ef4f lnonion: use IntEnum and IntFlag for failure codes 2019-08-20 09:03:10 +02:00
SomberNight
bab9f163f7 decode onion errors to failure message type 2019-08-20 09:03:10 +02:00
SomberNight
5a05a92b3d move bolt-04 onion stuff to its own module 2019-08-20 09:03:10 +02:00