Commit Graph

6204 Commits

Author SHA1 Message Date
Conner Fromknecht
9fe284923a
watchtower/wtserver: read RewardBase from CreateSession 2019-01-31 18:17:35 -08:00
Conner Fromknecht
46a86a863a
wtwire/create_session: add RewardBase field to CreateSession 2019-01-31 18:17:35 -08:00
Conner Fromknecht
26f4131102
watchtower/wtpolicy: add RewardBase to Policy 2019-01-31 18:17:35 -08:00
Olaoluwa Osuntokun
948646b58b
Merge pull request #2481 from joostjager/move-input
multi: move input to separate package
2019-01-31 16:48:31 -08:00
Olaoluwa Osuntokun
fc869d4a4c
Merge pull request #2558 from halseth/channel-restoration-old-format-fee-update
Channel restoration of old format fee update
2019-01-31 12:29:49 -08:00
Joost Jager
9e012ecc93
multi: move Input interface and related code
This commit is a step to split the lnwallet package. It puts the Input
interface and implementations in a separate package along with all their
dependencies from lnwallet.
2019-01-31 13:25:33 +01:00
Joost Jager
667474db75
lnwallet: move code to transactions files 2019-01-31 13:24:39 +01:00
Johan T. Halseth
47918bd6ce
lnwallet/channel: add restoration sanity check
To avoid more bugs slipping through where the logIndex is not set, we
panic to catch this. This was earlier done for Adds and the htlcCounter,
which did lead us to find the resulting retoration bug.
2019-01-31 09:24:50 +01:00
Johan T. Halseth
9a0f87fd8e
lnwallet/channel_test: add TestFeeUpdateOldDiskFormat
TestFeeUpdateOldDiskFormat tests that we properly recover FeeUpdates
written to disk using the old format, where the logIndex was not
written.
2019-01-31 09:24:50 +01:00
Johan T. Halseth
b593c1c7c7
lnwallet/channel: set logIndex for restored FeeUpdate
Earlier versions did not write the log index to disk for fee updates, so
they will be unset. To account for this we set them to to current update
log index.
2019-01-31 09:24:49 +01:00
Olaoluwa Osuntokun
1863dcef1f
Merge pull request #2371 from Roasbeef/static-chan-backups-channeldb
channeldb: prepatory modifications for full SCB implementation
2019-01-30 14:40:27 -08:00
Olaoluwa Osuntokun
8bd29de981
Merge pull request #2554 from Roasbeef/deprecate-htlc-amt-error
multi: deprecate IncorrectHtlcAmount
2019-01-30 14:14:09 -08:00
Olaoluwa Osuntokun
441307e8f7
Merge pull request #2561 from Roasbeef/lax-max-in-flight-verification
Revert "funding+lnwallet: ensure max_htlc_value_in_flight smaller tha…
2019-01-29 23:04:13 -08:00
Olaoluwa Osuntokun
b1b42dcfae
test: update error propagation test for new onion error change
In this commit, we update the error propagation test to ensure that the
proper HTLC amount is included for the `CodeUnknownPaymentHash` error.
2019-01-29 23:03:42 -08:00
Olaoluwa Osuntokun
c8518140ee
lnwire: update Error() method for FailUnknownPaymentHash to include amt 2019-01-29 23:03:35 -08:00
Olaoluwa Osuntokun
b4c5833325
Revert "fundingmanager_test: add TestFundingManagerRejectInvalidMaxValueInFlight"
This reverts commit eb618051208dbd8bb0c160001052b5cc36174888.
2019-01-29 18:31:04 -08:00
orbitalturtle
08750f180b multi: deprecate IncorrectHtlcAmount onion error
In this commit, we deprecate the `IncorrectHtlcAmount` onion error.
We'll still decode this error to use when retrying paths, but we'll no
longer send this ourselves. The `UnknownPaymentHash` error has been
amended to also include the value of the payment as well. This allows us
to worry about one less error.
2019-01-29 18:21:13 -08:00
Olaoluwa Osuntokun
b220c47ce7
Revert "funding+lnwallet: ensure max_htlc_value_in_flight smaller than capacity"
This reverts commit 4aa52d267f000f84caf912c62fc14a5b8e7cacb5.

It turns out that the other implementations set values for this field
which aren't based on the actual capacity of the channel. As a result,
we'll no reject most of their channel offerings, since they may offer a
value of a max `uint64` or something else hard coded that's above the
size of the channel. As a result, we're reverting this check for now to
maintain proper compatibility.
2019-01-29 17:58:04 -08:00
Conner Fromknecht
fd1bbe63cf
Merge pull request #2505 from cfromknecht/go-acc-coverage
build: more reliable coverage using go-acc
2019-01-29 12:45:28 -08:00
Olaoluwa Osuntokun
480ec3bbca
channeldb: ensure restored channels can't be mutated 2019-01-28 20:24:48 -08:00
Olaoluwa Osuntokun
4fd1f832d7
contractcourt+rpc: use new FetchChannel method instead of scanning
In this commit, we modify areas where we need to force close a channel
to use the new FetchChannel method instead of manually scanning. This
dramatically reduces the CPU usage when doing things like closing a
large number of channels within lnd.
2019-01-28 20:24:45 -08:00
Olaoluwa Osuntokun
821de3e107
test: remove FullSync call from breacharbiter_test.go
In this commit, we remove an extra openChannel.FullSync() call from
breacharbiter_test.go. Before this collective diff, calling
SyncPending() then FullSync() didn't result in an error. However, a
prior commit now makes this an error to ensure we don't attempt to
override any existing channels. This is the only area in the codebase
that we made this mistake which in this case, was benign.
2019-01-28 20:24:43 -08:00
Olaoluwa Osuntokun
9e5723e1bc
lnwallet: modify ForceClose to disallow closing if local data loss
In this commit, we ensure that if a channel is detected to have local
data loss, then we don't allow a force close attempt, as this may not be
possible, or cause us to play an invalid state.
2019-01-28 20:24:42 -08:00
Olaoluwa Osuntokun
b2b57314fa
channeldb: add new RestoreChannelShells method
In this commit, we add a new type (ChannelShell) along with a new
method, RestoreChannelShells which allows a caller to insert a series of
channel shells into the database. These channel shells will allow a
restored node to initiate the DLP protocol and recover their set of
existing channels.

When we insert a channel shell, we re-create the original link node, and
also add the outgoing edge to the channel graph. This way we can be sure
that upon start up, we attempt to connect to the remote peers, and that
the normal graph query commands will operate as expected.
2019-01-28 20:24:41 -08:00
Olaoluwa Osuntokun
fa30af0475
channeldb: when fetching/inserting commits check for ChanStatusRestored
If the ChanStatusRestored flag is set, then we don't need to write or
read the set of commits for a channel as they won't exist. This will be
the case when we restore a channel from an SCB.
2019-01-28 20:24:40 -08:00
Olaoluwa Osuntokun
c656788b0b
channeldb: add new methods to allow adding a new edge+policy w/ existing db transaction 2019-01-28 20:24:38 -08:00
Olaoluwa Osuntokun
11c6887ffa
channeldb: refactor syncPending to expose new syncNewChannel function
The new syncNewChannel function will allow callers to insert a new
channel given the OpenChannel struct, and set of addresses for the
channel peer. This new method will also create a new LinkNode for the
peer if one doesn't already exist.
2019-01-28 20:24:37 -08:00
Olaoluwa Osuntokun
7a88f580ea
channeldb: add new FetchChannelMethod
In this commit, we add a new method, FetchChannel which is required in
order to implement the new chanbackup.LiveChannelSource interface.
2019-01-28 20:24:36 -08:00
Olaoluwa Osuntokun
aaf6456e12
channeldb: add HasChanStatus and ApplyChanState methods to OpenChannel
These methods allow callers to properly query if a channel is in a
particular flag, and also modify the channel status in a thread safe
manner.
2019-01-28 20:24:35 -08:00
Olaoluwa Osuntokun
a410262dda
channeldb: modify the String() method of ChannelStatus reflect all flags
In this commit, we modify the String() method of the ChannelStatus type
to reflect the fact that it's a flag set. With these new changes, we'll
now print the variable name of each assigned bit with a bar delimiting
them all.
2019-01-28 20:24:33 -08:00
Olaoluwa Osuntokun
f57f40e767
channeldb: add prefix naming to ChannelStatus enum variables
In this commit, we add a prefix naming scheme to the ChannelStatus enum
variables. We do this as it enables outside callers to more easily
identify each individual enum variable as a part of the greater
enum-like type.
2019-01-28 20:24:32 -08:00
Olaoluwa Osuntokun
f4054d2a66 channeldb: add new AddrsForNode method
In this commit, we add a new AddrsForNode method. This method will allow
a wrapper sturct to implement the new chanbackup.LiveChannelSource
method which is required to implement the full SCB feature set.
2019-01-28 20:24:22 -08:00
Olaoluwa Osuntokun
e51c58e722
Merge pull request #2538 from Roasbeef/trickle-timer
config: increase default trickle delay from 30s to 1m30s
2019-01-28 19:43:08 -08:00
Conner Fromknecht
d7ac4bd6f9
Merge pull request #2543 from alexbosworth/patch-9
trivial: typo fix
2019-01-28 16:56:28 -08:00
Olaoluwa Osuntokun
ea6f7ccf2e
Merge pull request #2547 from moshababo/master
[trivial] lntest: FetchNodeInfo/initLightningClient docs update
2019-01-28 12:37:15 -08:00
Moshe Shababo
8ed4e887be lntest: FetchNodeInfo/initLightningClient docs update 2019-01-27 17:05:30 +02:00
Alex Bosworth
d432ee6f13
trivial: typo fix
Correct log name of WalletKit
2019-01-26 16:57:09 -08:00
Olaoluwa Osuntokun
b56e95587f
config: increase default trickle delay from 30s to 1m30s
In this commit, we increase the default trickle delay from 30s to 1m30s.
We do this as before we implement the new INV gossip mechanism, we want
to de-emphasise the quick propagation of updates through the network
which eats up bandwidth.
2019-01-25 14:40:28 -08:00
Johan T. Halseth
6a78141a2d
Merge pull request #2536 from cfromknecht/notify-online-log
server: fix notify-online log message
2019-01-25 13:29:03 +01:00
Olaoluwa Osuntokun
e9889cb899
Merge pull request #2370 from Roasbeef/static-chan-backups-chanbackup
chanbackup: add new package implementing static channel backups
2019-01-24 16:14:24 -08:00
Conner Fromknecht
58f95322c0
server: fix notify-online log message 2019-01-23 20:40:27 -08:00
Olaoluwa Osuntokun
3b370fa08d
chanbackup: add new sub-system for keeping the on disk channels.backup up to date
In this commit, we introduce the chanbackup.SubSwapper interface. It
takes a regular Swapper implementation (defined by the
chanbackup.SubSwapper) interface along with a chanbackup.ChannelNotifier
implementation. Given these two interfaces, we're able to be notified
when a new channel is opened or closed, and then use the Swapper to
atomically replace the on-disk channel back up. As a result, a Lightning
daemon can ensure that they alwayts have a up to date channels.backup on
disk that can safely be copied away by users and be used to restore
channel funds in the event of partial/total data loss.
2019-01-23 18:11:33 -08:00
Olaoluwa Osuntokun
60999df08f
chanbackup: add new MultiFile struct for storing+updating Multis on disk
In this commit, we add a new MultiFile struct. We'll use this struct in
store the latest multi-channel backup on disk, swap it out atomically,
and finally extract+unpack the contents of the multi-file. The format
that's written to disk is the same as a regular Packed multi. The
contents of this new file are meant to be used to safely implement an
always up to date multi file on disk as a way for users to easily rsync
or fsnotiy (when it changes) the backup state of their channels.

We implement an atomic update and swap in the UpdateAndSwap. The method
uses relies on the underlying file system supporting an atomic rename
syscall. We first make a temporary backup file, write the latest
contents to that, then swap the temp file with the main file using
rename(2). This way, we ensure that we always have a single up to date
file, if the protocol aborts before the rename, then we can detect this,
remove the temp file, and attempt another swap.
2019-01-23 18:11:31 -08:00
Olaoluwa Osuntokun
7fcab83bb4
chanbackup: add functions to allow recovery of existing channel backups
In this commit, we add a series of functions that will allow users to
recover existing channel backups. We do this using two primary
interfaces: the ChannelRestorer, and the PeerConnector. The first
interfaces allows us to abstract away the details w.r.t exactly how a
channel is restored. Instead, we simply expect that the channel backup
will be inserted as a sort of "channel shell" which contains only the
data required to initiate the data loss protection protocol. The second
interface is how we instruct the Lightning node to connect out to the
channel peer given its known addresses.
2019-01-23 18:11:29 -08:00
Olaoluwa Osuntokun
1348c6b35b
chanbackup: add functionality to allow external callers to backup channels
In this commit, we introduce a series of interfaces and methods that
will allow external callers to backup either all channels, or a specific
channel identified by its channel point. In order to abstract away the
details w.r.t _how_ we obtain the set of open channels, or their storage
mechanisms, we introduce a new LiveChannelSource interfaces. This
interfaces allows us to fetch all channels, a channel by its channel
point, and also all the known addresses for a node as we'll need this in
order to connect out to the node in the case of a recovery attempt.
2019-01-23 18:11:28 -08:00
Olaoluwa Osuntokun
71df4b0545
chanbackup: introduce Multi, a multi-channel backup
In this commit, we introduce the Multi sturct. Multi is a series of
static channel backups. This type of backup can contains ALL the channel
backup state in a single packed blob. This is suitable for storing on
your file system, cloud storage, etc. Systems will be in place within
lnd to ensure that one can easily obtain the latest version of the Multi
for the node, and also that it will be kept up to date if channel state
changes.
2019-01-23 18:11:27 -08:00
Olaoluwa Osuntokun
ee71e16593
chanbackup: add implementation of Single Channel Backups (SCBs)
In this commit, we add the initial implementation of the SCB structure.
Given an SCB, and a user's seed, it will be possible to recover the
settled balanced of a channel in the event of total or partial data
loss. The SCB contains all information required to initiate the data
loss protection protocol once we restore the channel and connect to the
remote channel peer.

The primary way outside callers will interact with this package are via
the Pack and Unpack methods. Packing means writing a
serialized+encrypted version of the SCB to an io.Writer. Unpacking does
the opposite.

The encoding format itself uses the same encoding as we do on the wire
within Lightning. Each encoded backup begins with a version so we can
easily add or modify the serialization format in the future, if new
channel types appear, or we need to add/remove fields.
2019-01-23 18:11:26 -08:00
Olaoluwa Osuntokun
d98a7e8138
chanbackup: add logger 2019-01-23 18:11:25 -08:00
Olaoluwa Osuntokun
67c6d0d331
chanbackup: implement crypto operations for serialized static channel baackups
In this commit, we implement a series of new crypto operations that will
allow us to encrypt and decrypt a set of serialized channel backups.
Their various backups may have distinct encodings when serialized, but
to the functions defined in this file, we treat them as simple opaque
blobs.

For encryption, we utilize chacha20poly1305 with a random 24 byte nonce.
We use a larger nonce size as this can be safely generated via a CSPRNG
without fear of frequency collisions between nonces generated. To
encrypt a blob, we then use this nonce as the AD (associated data) and
prepend the nonce to the front of the ciphertext package.

For key generation, in order to ensure the user only needs their
passphrase and the backup file, we utilize the existing keychain to
derive a private key. In order to ensure that at we don't force any
hardware signer to be aware of our crypto operations, we instead opt to
utilize a public key that will be hashed to derive our private key. The
assumption here is that this key will only be exposed to this software,
and never derived as a public facing address.
2019-01-23 18:11:21 -08:00
Olaoluwa Osuntokun
eff9899d14 keychain: add new KeyFamily: KeyFamilyStaticBackup for SCB encryption keys 2019-01-23 18:11:11 -08:00