Commit Graph

10 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
a04fa76a4c
lnwire+htlcswitch: minor grammatical, formatting fixes after error PR 2017-07-14 20:08:37 -07:00
Andrey Samokhvalov
2d378b3280 htlcswitch+router: add onion error obfuscation
Within the network, it's important that when an HTLC forwarding failure
occurs, the recipient is notified in a timely manner in order to ensure
that errors are graceful and not unknown. For that reason with
accordance to BOLT №4 onion failure obfuscation have been added.
2017-07-14 19:08:04 -07:00
Olaoluwa Osuntokun
4c7af9f16d
htlcswitch: eliminate HopID in favor of a [33]byte for compressed pub keys 2017-06-16 23:38:52 +02:00
Olaoluwa Osuntokun
5cee9d4bf1
htlcswitch: modify the HopIterator interface to utilize per-hop payloads
This commit modifies the HopIterator interface to allow nodes that
receive incoming HTLC’s to make forwarding decisions based on the
returned peer hop information, rather than just the next hop. With this
change, we can now enforce our routing policy, and reject any HTLC’s
that violate the policy.
2017-06-16 23:29:44 +02:00
Olaoluwa Osuntokun
9a972a6fc3
htlcswitch: remove unused NewSphinxBlob function 2017-06-16 23:27:39 +02:00
Olaoluwa Osuntokun
c3497e515b
htlcswitch: add new ForwardingInfo struct to represent per-hop payloads 2017-06-16 23:26:56 +02:00
Andrey Samokhvalov
06946f3911 htlcswitch: add real sphinx iterator
Before using the htlcswitch inside the lnd we need to implement the
sphinx version of the hop iterator, which will be process the real
onion blobs.
2017-05-31 11:06:08 -07:00
Andrey Samokhvalov
de01721aed htlcswitch: add hop iterator
Short: such abstraction give as ability to test the channel link in the
future.

Long: hop iterator represents the entity which is be able to give payment
route hop by hop. This interface will be used to have an abstraction
over the algorithm which we use to determine the next hope in htlc route
and also helps the unit test to create mock representation of such
algorithm which uses simple array of hops.
2017-05-31 11:06:08 -07:00
Andrey Samokhvalov
b86409cdb3 htlcswitch: recreate hlcswitch from scratch
This commit gives the start for making the htlc manager and htlc switch
testable. The testability of htlc switch have been achieved by mocking
all external subsystems. The concrete list of updates:

1. create standalone package for htlc switch.
2. add "ChannelLink" interface, which represent the previous htlc link.
3. add "Peer" interface, which represent the remote node inside our
subsystem.
4. add htlc switch config to htlc switch susbystem, which stores the
handlers which are not elongs to any of the above interfaces.

With this commit we are able test htlc switch even without having
the concrete implementation of Peer, ChannelLink structures, they will
be added later.
2017-05-31 11:06:08 -07:00
Andrey Samokhvalov
07afcad6de htlcswitch: add hop id
Add hop id structure wich represent the next lnd node in sphinx payment
route. This structure will be removed when we switch to use the channel
id as the pointers to the htlc update.
2017-05-31 11:06:08 -07:00