Commit Graph

284 Commits

Author SHA1 Message Date
Christian Decker b8fa765c3f wallet: Add primitives to store htlcs in the database
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-09 11:51:13 +10:30
Rusty Russell f219955dc6 wallet: fix spending of change.
We recorded our own change as P2SH; it's not.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 22:59:24 +02:00
Christian Decker d14c9d30cd moveonly: Move make wallet_extract_owned available publicly
This was so far only used in the walletrpc, but we'll need it in a few
places.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-10 10:48:53 +09:30
Christian Decker 4b59c4f857 fix: Do not assume size_t == u64
This was causing some compilation trouble on 32bit systems, see #256.

Reported-by: @shsmith
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-05 18:12:28 +02:00
Rusty Russell 8375857116 common: absorb remaining files from daemon/
Also, we split the more sophisticated json_add helpers to avoid pulling in
everything into lightning-cli, and unify the routines to print struct
short_channel_id (it's ':',  not '/' too).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00
Rusty Russell 1396cf6249 lightningd: remove num_revocations_received.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-23 17:38:22 +02:00
Christian Decker def3d77a70 lightningd: Base peer->seed off of the channel ID
The peer->seed needs to be unique for each channel, since bitcoin
pubkeys and the shachain are generated from it. However we also need
to guarantee that the same seed is generated for a given channel every
time, e.g., upon a restart. The DB channel ID is guaranteed to be
unique, and will not change throughout the lifetime of a channel, so
we simply mix it in, instead of a separate increasing counter.

We also needed to make sure to store in the DB before deriving the
seed, in order to get an ID assigned by the DB.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-23 10:23:54 +09:30
Christian Decker e51d261f51 lightningd: Load persisted channels on startup
This is the big one, and it's completely anticlimactic: it loads all
channels that have reached opening and are not marked as
closingd_complete into memory, that's it.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-23 10:23:54 +09:30
Christian Decker 4e6f9787b6 wallet: unique_id is not the same as dbid
They happen to advance at the same pace but mixing them may have
unforeseen consequences, and I have done so a few times already so
this explicitly separates them.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-23 10:23:54 +09:30
Christian Decker 1a94e7282b db: Make peers unique by node_id
We should only ever have a single entry for each node_id, enforcing
this on the DB.
2017-08-23 10:23:54 +09:30
Christian Decker 4bc0750882 wallet: Moving wallet_channel->peer_id into the peer struct
This was supposed to be a temporary solution anyway, and I had a
rather annoying mixup between peer_id and unique_id, the latter of
which is actually a connection identifier.
2017-08-23 10:23:54 +09:30
Christian Decker 50ee067393 wallet: Set shutdown keyindex to -1 if not set
Was using unsigned ints before, which is just plain wrong.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-23 10:23:54 +09:30
Christian Decker 05aaaa1f49 wallet: Actually save the correct min_index when creating shachains
If we kill the daemon without performing any commits we ended up with
a 0 instead of UINT48_MAX which was expected.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-23 10:23:54 +09:30
Rusty Russell 1ffb9f07c1 ccan: update to latest shachain.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-20 13:06:41 +09:30
Rusty Russell 893335244d openingd: supply initial tx as well as signature.
And store in peer->last_tx/peer->last_sig like all other places,
that way we broadcast it if we need to.

Note: the removal of tmpctx in funder_channel() is needed because we
use txs[0], which was allocated off tmpctx.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-20 13:06:41 +09:30
Rusty Russell c389215a35 closingd: send the tx to master as we negotiate.
We can derive fees from this, and also broadcast at any time without
having to reconstruct it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-20 13:06:41 +09:30
Rusty Russell dbfac68c3f lightningd: keep last valid tx, and its signature.
This avoids us having to reconstruct it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-20 13:06:41 +09:30
Christian Decker 1ac10716be wallet: Add closing parameters to channel state
I must have missed these before, so adding them now.
2017-08-10 12:34:58 +09:30
Christian Decker 1070bbccde wallet: Add channel_config persistence to channel persistence
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-08-10 12:34:58 +09:30
Christian Decker cc5af13e05 wallet: Implement channel_config persistence 2017-08-10 12:34:58 +09:30
Christian Decker af62c9ca97 wallet: Insert/Update channels into database
Definitely not as nice as it could be, but it works for now. This is
primarily intended as a simple dump method that just saves everything
to the database. We will later use smaller incremental updates to
update specific things. wallet_channel_save serves both to insert as
well as update.
2017-08-10 12:34:58 +09:30
Christian Decker a5b425faad wallet: Implement loading of stored channels from DB
Ugliest code I've written in a while, but it seems to do the trick.
2017-08-10 12:34:58 +09:30
Christian Decker 5912c68185 db: Add a hexval helper to decode hex values from db into fields
This is going to be handy pretty soon. Channels are almost fully
blobs...
2017-08-10 12:34:58 +09:30
Christian Decker 1ff64ef07c wallet: Implement delete for wallet_shachain 2017-08-10 12:34:58 +09:30
Christian Decker 34baf05973 wallet: Implement shachain persistence
This needed a rather annoying hack since sqlite3 can only store
integers up to 2^63, so I just squash it down/invert it, and hope that
we never ever have more than 2^63 updates.
2017-08-10 12:34:58 +09:30
Rusty Russell a0800e352a wallet_get_newindex: encapsulate routine to get a new keyindex.
We'll want this for shutdown.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Christian Decker a1faccb9dc walletrpc: Split owned output detection out and use it for change
Splitting the detection for outputs that we own into a separate
`wallet_extract_owned_outputs` function and use it when the broadcast
succeeds to re-add the change output back to the database.
2017-06-23 16:02:20 +09:30
Christian Decker 938ab67a01 wallet: move can_spend to wallet.c and json_addfunds to walletrpc.c 2017-06-23 16:02:20 +09:30
Christian Decker d6656358b5 wallet: Add bip32_base to the wallet struct
Wallet should really be the container for anything bip32 related, so
I'd like to slowly wean off of `ld->bip32_base` in favor of
`ld->wallet->bip32_base`
2017-06-23 16:02:20 +09:30
Christian Decker a775b52941 wallet: Return change satoshis when selecting coins
We'd be computing them later most of the time anyway.
2017-06-23 16:02:20 +09:30
Christian Decker 7738bccf42 wallet: Move coin-selection primitives to wallet
We'll re-use them a few times so having them at a central location is
nice. We also fix a bug that was unreserving UTXO entries upon free,
instead of promoting them to being spent.
2017-06-23 16:02:20 +09:30
Christian Decker 3404509928 wallet: Move UTXO tracking to DB
Since we have a simple way to query the database for UTXOs we can
simplify some of the coin selection logic. That gets rid of the
in-memory list of UTXOs.
2017-06-06 09:16:10 +09:30
Christian Decker bdb6b1002f wallet: Reserve UTXOs used in build_utxos 2017-06-06 09:16:10 +09:30
Christian Decker 9882a9fb29 wallet: Start the wallet interface and link it into lightningd
The database is hidden behind the wallet interface, which has all the
wallet specific functionality. First up is the tracking of outputs.
2017-06-06 09:16:10 +09:30