Now we've tested it:
1. open_channel needs to write response to REQ_FD not STATUS_FD.
2. recv_channel needs to send our next_per_commit, not echo theirs!
3. print the problematic signature if it's wrong, not our own.
Cleanups:
1. Return the message from open_channel/recv_channel for simplicity.
2. Trace signing information.
3. More tracing messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The signing helper was really just for testing, so remove it. But
turn the funding_tx() function into a useful one by making it take the
utxo array.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I made it privkey to prove we owned one key, but without the HSM checking
we have a valid sig for the first commitment transaction, and that
we haven't revealed the revocation secret key, why bother?
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Or for blackbox tests --gdb1=<subdaemon> / --gdb2=<subdaemon>.
This makes the subdaemon wait as soon as it's execed, so we can attach
the debugger.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We should check that the peer it says it's returning is under its control,
we need to take back the peer fd, and use the correct conversion routine
for the packet it sends us.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
For the moment this is simply handed through to lightningd for
generating the per-peer secrets; eventually the HSM should keep it and
all peer secret key operations would be done via HSM-ops.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Raw crypto_state is what we send across the wire: the peer one is for
use in async crypto io routines (peer_read_message/peer_write_message).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The requirements for accepting the remote config are more complex than
a simple min/max value, as various parameters are related. It turns
out that with a few assumptions, we can boil this down to:
1. The valid feerate range.
2. The minimum effective HTLC throughput we want
3. The a maximum delay we'll accept for us to redeem.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Unless the transaction is confirmed, the UTXOs should be released if
something happens to the peer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
wire_sync_write() adds length, but we already have it, so use write_all.
sync_crypto_read() handed an on-stack buffer to cryptomsg_decrypt_header,
which expected a tal() pointer, so use the known length instead.
sync_crypto_read() also failed to read the tag; add that in (no
overflow possible as 16 is an int, len is a u16).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This seems rather easy to fix, the only case we do not want to set
`STATE_SHUTDOWN` us when we have updates which we have not committed
yet, which is handled separately in the other IF-branch.
The peer is woken up every 30 seconds to deliver the backlog of
messages. Additionally I added the normal message queue to be able to
send non-gossip message to the peer.
The `dstate` reference was only an indirection to the `timers`
sub-structure anyway, so removing this indirection allows us to reuse
the timers in the subdaemon arch.
Turns out we want to permute transactions for the wallet too, so we
use void ** rather than assume we're shuffling htlc ** (and do inputs,
too!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a workaround; eventually libwally will be a nice shared library that
we won't have to bundle, and clashing with internal symbols won't be
a problem.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This object is basically the embodyment of BOLT #2. Each HTLC already
knows its own state; this moves them between states and keeps them
consistent.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's currently written to produce "local" commit-txs, but of course we
need to produce remote ones too, for signing.
Thus instead of using "remote" and "local" we use "other" and "self",
and indicate with a single "side" flag which we're generating (because
that changes how HTLCs are interpreted).
This also adds to the tests: generate the remote view of the commit_tx
and make sure it matches!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christian Decker
Rusty Russell