Well, it's generated by shachain, so technically it is a sha256, but
that's an internal detail. It's a secret.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Simplification of the offset calculation to use the rescan parameter, and rename
of `wallet_first_blocknum`. We now use either relative rescan from our last
known location, or absolute if a negative rescan was given. It's all handled in
a single location (except the case in which the blockcount is below our
precomputed offset), so this should reduce surprises.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This will be used to replay transactions that were witnessed in the blockchain
during startup, so that onchaind can be recreate its state.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The only use for these was to compute their txids so we could notify depth
in case of reorgs.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This fixes the root cause of https://github.com/ElementsProject/lightning/issues/1212
where we deleted the payment because we wanted to retry, then retry failed
so we had an (old) HTLC without a matching payment. We then fed that
HTLC to onchaind, which tells us it's missing, and we try to fail the
payment and deref a NULL pointer.
Fixes: #1212
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Will be used later to filter out outputs we are interested in, and
trigger db updates with them.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
In preparation for removing in-memory invoice objects.
Since they will be removed, there will no longer be any
individual invoice objects to attach to.
Since we create new entries from wallet_channel_insert(), there's no
need for the branches. And indeed, many wallet functions can be
static.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We derive the seed from this, so it needs to be unique, but using
rowid forced us to put the channel into the db early, before it
was ready.
Instead, use a counter to ensure uniqueness, initialized when we load
existing peers. This doesn't need to touch the database at all.
As we now have only two places where the channel is committed (the
funder and fundee paths), so we create a new explicit
'wallet_channel_insert()' function: 'wallet_channel_save()' now just
updates.
Note that this also fixes some weirdness in
wallet_channels_load_active: we strangely avoided loading channels in
CLOSINGD_COMPLETE (which fortunately was a transient state, so
unlikely anyone hit this). Note that since the lines above already
delete all the OPENINGD channels, we now simply load them all.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Adds a simple check that compares genesis-blockhashes from the
chainparams against the blockhash that the wallet was created
with. The wallet is network specific, so mixing is always a bad idea.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
With fallback depending on chainparams: this means the first upgrade
will be slow, but after that it'll be fast.
Fixes: #990
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This provides a sanity check that we are in sync, and also keeps the
logic in the program and out of the SQL.
Since the destructor now doesn't clean up the peer, there are some
wider changes to be made when cleaning up. Most notably we create
lots of channels in run-wallet.c and they previously freed the peer:
now we need free the peer explicitly, so we need to free them first.
Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Much like the database; peer contains id, address, channel contains
per-channel information. Where we create a channel, we always create
the peer too.
For the moment, peer->log and channel->log coexist side-by-side, to
reduce some of the churn.
Note that this changes the API to dev-forget-channel: if we have more
than one channel, we insist they specify the short-channel-id.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were sideloading it, which is awkward, now it's a field that we can
actually use in the code.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Rusty Russell
Christian Decker
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