Commit Graph

203 Commits

Author SHA1 Message Date
Olaoluwa Osuntokun
8c9c4b52e8
Merge pull request #3184 from wpaulino/wtclient-subserver
multi: add watchtower client RPC subserver
2019-07-30 17:26:22 -07:00
Olaoluwa Osuntokun
69c9e2b732
Merge pull request #3278 from Crypt-iQ/bbolt_options_0707
channeldb: specify freelist bbolt options by default
2019-07-30 16:52:28 -07:00
Wilmer Paulino
0690c8f627
watchtower/wtclient: only reset iterator once we've exhausted all candidates
Doing so allows us to load balance sessions better amongst all of the
tower candidates.
2019-07-30 15:18:18 -07:00
Wilmer Paulino
0431701262
multi: only allow specifying towers to TowerClient through RPC
With the introduction of the WatchtowerClient RPC subserver, the lnd
configuration flag to specify private watchtowers for the client is no
longer needed and can lead to confusion upon users. Therefore, we remove
the flag completely, and only rely on the watchtower client being active
through a new --wtclient.active flag.
2019-07-30 15:18:17 -07:00
Wilmer Paulino
359b2049b6
watchtower: load persisted towers upon TowerClient creation
We do this as a convenience for WatchtowerClient users so that they do
not need to re-add towers upon restarts. We ensure not to re-add towers
that have been previously removed by determining whether it has any
lingering active sessions.
2019-07-30 15:18:17 -07:00
Wilmer Paulino
c57128097e
watchtower/wtclient: extend TowerClient with CRUD operations for towers
In this commit, we extend the wtclient.Client interface with the
following methods:

  * AddTower
  * RemoveTower
  * RegisteredTowers
  * LookupTower
  * Stats

Care has been taken to ensure that any in-memory state updates are
_only_ performed after a successful database update.

These methods are currently unused, but they serve as a dependency for
the upcoming WatchtowerClient RPC subserver.
2019-07-30 15:18:13 -07:00
Wilmer Paulino
06d10d8100
watchtower/wtclient: extend TowerCandidateIterator to update candidates 2019-07-30 15:13:24 -07:00
Wilmer Paulino
1d73a6564f
watchtower: extend client databse with CRUD operations for towers
These operations are currently unused, but will be integrated into the
TowerClient at a later point as future preparation for the
WatchtowerClient RPC subserver, which will allow users to add, remove,
and list the watchtowers currntly in use.
2019-07-30 15:13:23 -07:00
Wilmer Paulino
56d66c80a1
watchtower: extend client db to filter sessions for a specific tower
This currently takes O(N) time as there does not exist an index of
active client sessions for each watchtower within the client's database.
This index is likely to be added in the future.
2019-07-30 15:13:22 -07:00
Wilmer Paulino
4abadc82f3
watchtower/wtclient: export clientStats 2019-07-30 15:13:21 -07:00
Wilmer Paulino
159883665d
wtclient: refactor client creation after database calls 2019-07-30 15:13:20 -07:00
Wilmer Paulino
76f9c9bd52
watchtower/wtclient: remove stale sessionQueue TODO
The state updates that are pending to be acked by the tower are already
loaded within newSessionQueue.
2019-07-30 15:13:17 -07:00
Wilmer Paulino
1d2aba8cd4 watchtower/wtpolicy: properly set DefaultSweepFeeRate and MinSweepFeeRate
These values were intended to be 10 sat/vbyte and 4 sat/vbyte
respectively, but the conversion was done incorrectly.
2019-07-24 18:12:48 -07:00
nsa
66d15c8e76 channeldb + wtdb: specify freelist bbolt options by default
This commit specifies two bbolt options when opening the underlying
channel and watchtower databases so that there is reduced heap
pressure in case the bbolt database has a lot of free pages in the
B+ tree.
2019-07-08 18:41:25 -04:00
Conner Fromknecht
4b549cb43c
watchtower/wtpolicy/policy: bump default fee rate to 10 sat/byte 2019-07-01 15:56:03 -07:00
Conner Fromknecht
05107ce969
watchtower/wtdb: fix double hex encoding of chanid 2019-07-01 13:11:58 -07:00
Olaoluwa Osuntokun
7f48ff6717 watchtower: fix linter errors 2019-06-28 16:10:41 -07:00
Conner Fromknecht
bf042f1271
watchtower/wtclient: filter non-target towers from candidates 2019-06-20 18:17:23 -07:00
Olaoluwa Osuntokun
0506b1e587
Merge pull request #3224 from cfromknecht/wtserver-key-family
watchtower: use separate key family for wtserver public key, add watchtower subserver
2019-06-20 18:01:21 -07:00
Conner Fromknecht
c06d71530a
watchtowerrpc/standalone: implement watchtowerrpc.WatchtowerBackend iface 2019-06-20 17:04:04 -07:00
Conner Fromknecht
fa966a4901
watchtower: add externalip CLI configuration 2019-06-20 17:04:03 -07:00
Conner Fromknecht
7e81a5144e
watchtower: rename DefaultPeerPortStr -> DefaultListenAddr 2019-06-20 17:04:03 -07:00
Conner Fromknecht
997023cd7a
Merge pull request #3226 from cfromknecht/wtclient-log-fixups
watchtower/multi: fix logging in wtclient
2019-06-20 14:10:02 -07:00
Conner Fromknecht
3a4aba463b
routing+watchtower/wtclient: prints stats once per minute 2019-06-19 20:07:11 -07:00
Conner Fromknecht
fad8932d75
watchtower/multi: fix logging in wtclient 2019-06-19 19:57:59 -07:00
Conner Fromknecht
059887bd7b
watchtower/wtdb: apply sanity checks to session policy before accepting 2019-06-13 19:54:22 -07:00
Conner Fromknecht
1979f9a7c0
watchtower/multi: use sane sweep fee rate in unit tests 2019-06-13 19:54:22 -07:00
Conner Fromknecht
a543c781fe
watchtower/wtpolicy: add basic validity constraints 2019-06-13 19:54:22 -07:00
Conner Fromknecht
37052f1561
watchtower/wtdb: only accept properly sized blobs
Modifies the bbolt and mock tower databases to only accept blobs that
are the expected size of the session's blob type. This prevents resource
exhaustion attacks where a client may provide disproportionately large
encrypted blob, even though all supported blob types are of fixed-size.
2019-06-13 19:54:22 -07:00
Conner Fromknecht
dce24d1d47
watchtower/wtdb+wtserver: pass properly sized blob in unit tests 2019-06-13 19:54:22 -07:00
Conner Fromknecht
29009fdc34
watchtower/standalone: disable reward towers 2019-06-13 19:54:22 -07:00
Conner Fromknecht
6504058c74
watchtower/wtserver: add DisableReward config option 2019-06-13 19:54:21 -07:00
Conner Fromknecht
a246d8216a
watchtower/multi: define blob TypeAltruistCommit and TypeRewardCommit 2019-06-13 19:54:21 -07:00
Conner Fromknecht
2d47618055
watchtower/multi: define AltruistSessions feature bit as 0/1 2019-06-13 19:54:21 -07:00
Conner Fromknecht
86e1d111e5
watchtower/wtwire/message: bump wtwire messages outside reserved ranges
BOLT01 reserves the following ranges:
 - Setup & Control (types 0-31)
 - Channel (types 32-127)
 - Commitment (types 128-255)
 - Routing (types 256-511)

The wtwire messages now occupy 600-607.
2019-06-13 19:54:21 -07:00
Conner Fromknecht
7cabe2667f
watchtower/wtclient/client: use existing session with same TxPolicy
This commit modifies the client's filtering when selecting from existing
sessions. The new logic compares the configured TxPolicy with the
TxPolicy of the candidate sessions, which has the effect of ignoring
operational parameters such as MaxUpdates. Prior, changing MaxUpdates
would cause the client to request a new session even if it had perfectly
good slots available in a policy with an equal TxPolicy.
2019-06-13 19:54:21 -07:00
Conner Fromknecht
98c2d329e5
watchtower/multi: embed TxPolicy in wtpolicy.Policy
This commit splits out the parameters that shape the justice transaction
into their own struct, which then embedded within the overarching
wtpolicy.Policy which may have additional parameters describing
operation of the session.

This is done as a preliminary step to support comparison of sessions
based on matching TxPolicy configurations. This prevents otherwise
identical Policies from being counted as different if operational
parameters like MaxUpdates differ, even if it has no material difference
to the justice transaction.
2019-06-13 19:54:20 -07:00
Conner Fromknecht
9b365567b6
watchtower/wtclient/client: avoid over requesting sessions
This commit fixes a bug that would cause us to request more sessions
that needed from the session negotiator. With the current stat ticker,
we'd ask the negotiator for a new session every 30s if session
session negotiation did not return before printing the stats. Now we'll
avoid requesting to sessions by jumping back into the select loop.
2019-06-13 19:54:20 -07:00
Conner Fromknecht
c823878154
watchtower/conf: abstract address normalizer to prevent import cycle 2019-06-13 19:54:19 -07:00
Conner Fromknecht
db65d7ead4
watchtower/conf: remove experimental conditional compilation 2019-06-13 19:54:19 -07:00
Conner Fromknecht
d2f3d5ef6c
server: add watchtower client 2019-06-13 19:54:18 -07:00
Conner Fromknecht
ab4a4b77f5
watchtower/wtclient/session_queue: unify logging 2019-06-13 19:54:17 -07:00
Conner Fromknecht
3b51906a78
watchtower/multi: use new blob.BreachKey for enc/dec of justice kits 2019-06-13 19:54:17 -07:00
Conner Fromknecht
59bf4857f4
watchtower/blob/breach_key: define breach key as sha(txid || txid) 2019-06-13 19:33:16 -07:00
Conner Fromknecht
d9cfa610dc
watchtower/wtdb/breach_hint: redefine breach hint as sha(txid) 2019-06-13 19:33:16 -07:00
Conner Fromknecht
1b89ba1782
watchtower/multi: move BreachHint to blob pkg 2019-06-13 17:40:04 -07:00
Conner Fromknecht
28bf49807e
watchtower/wtdb: add CSessionStatus field to ClientSession
This commit adds persisted status bit-field to ClientSessions, that can
be used to modify behavior of their handling in the client. Currently,
only a default CSessionActive status is defined. However, the intention
is that this could later be used to signal that a session is abandoned
without needing to perform a db migration to add the field. As we move
forward with testing, this will likely be useful if a session gets
borked and we need a simple method of the client to temporarily ignore
certain sessions.

The field may be useful in signaling other types of status changes,
though this was the primary motivation that warranted the addition.
2019-05-24 18:24:41 -07:00
Conner Fromknecht
9157c88f93
watchtower/wtclient: dedup backups across restarts
Now that the committed and acked updates are persisted across restarts,
we will use them to filter out duplicate commit heights presented by the
client.
2019-05-24 18:24:41 -07:00
Conner Fromknecht
3be651b0b3
watchtower/wtdb: add ClientDB
This commit adds the full bbolt-backed client database as well as a set
of unit tests to assert that it exactly implements the same behavior as
the mock ClientDB.
2019-05-24 18:24:41 -07:00
Conner Fromknecht
b35a5b8892
watchtower/wtclient: integrate ClientChannelSummaries
In this commit, we utilize the more generic ClientChanSummary instead of
exposing methods that only allow us to set and fetch sweep pkscripts.
2019-05-23 20:48:50 -07:00