This, of course, should never be used. But it helps maintain connections
for the moment while we dig deeper into feerates.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We'll pass this down to gossip and make sure to re-announce/update
channels every so often. This is also used as a pruning timer, i.e.,
channels that have not been updated in 2 x channel-update-interval
will be pruned from the local view.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We use the tal notifiers to attach a `backtrace` object on every
allocation.
This also means moving backtrace_state from log.c into lightningd.c, so
we can hand it to memleak_init().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a primitive mark-and-sweep-style garbage detector. The core is
in common/ for later use by subdaemons, but for now it's just lightningd.
We initialize it before most other allocations.
We walk the tal tree to get all the pointers, then search the `ld`
object for those pointers, recursing down. Some specific helpers are
required for hashtables (which stash bits in the unused pointer bits,
so won't be found).
There's `notleak()` for annotating things that aren't leaks: things
like globals and timers, and other semi-transients.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We are still generating only char* style aliases, but the field is
defined to be unicode, which doesn't mix too well with char.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The filter is being populated while initializing the daemon and by
adding new keys as they are being generated. The filter is then used
in connect_block to identify transactions of interest.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
These need to be different for testing the example in BOLT 11.
We also use the cltv_final instead of deadline_blocks in the final hop:
various tests assumed 5 was OK, so we tweak utils.py.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In future it will have TOR support, so the name will be awkward.
We collect the to/fromwire functions in common/wireaddr.c, and the
parsing functions in lightningd/netaddress.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a bit messier than I'd like, but we want to clearly remove all
dev code (not just have it uncalled), so we remove fields and functions
altogether rather than stub them out. This means we put #ifdefs in callers
in some places, but at least it's explicit.
We still run tests, but only a subset, and we run with NO_VALGRIND under
Travis to avoid increasing test times too much.
See-also: #176
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Makes it easier to compare before/after failures. Ideally, we should
run under Travis both with this option and with the seed based on the
entire tmp path (which is still reproducible with determination, but
not fixed every run like this is).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now the flow is much simpler from a lightningd POV:
1. If we want to connect to a peer, just send gossipd `gossipctl_reach_peer`.
2. Every new peer, gossipd hands up to lightningd, with global/local features
and the peer fd and a gossip fd using `gossip_peer_connected`
3. If lightningd doesn't want it, it just hands the peerfd and global/local
features back to gossipd using `gossipctl_handle_peer`
4. If a peer sends a non-gossip msg (eg `open_channel`) the gossipd sends
it up using `gossip_peer_nongossip`.
5. If lightningd wants to fund a channel, it simply calls `release_channel`.
Notes:
* There's no more "unique_id": we use the peer id.
* For the moment, we don't ask gossipd when we're told to list peers, so
connected peers without a channel don't appear in the JSON getpeers API.
* We add a `gossipctl_peer_addrhint` for the moment, so you can connect to
a specific ip/port, but using other sources is a TODO.
* We now (correctly) only give up on reaching a peer after we exchange init
messages, which changes the test_disconnect case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We're going to make the ip/port optional, so they should go at the end.
In addition, using ip:port is nicer, for gethostbyaddr().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Especially when testing we might want to disable the automatic
reconnection logic in order not to masquerade bugs that disappear when
reconnecting.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Either when it exits with a signal, or sends an error status message.
Then we make test_lightningd.py use it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's no longer used and we definitely do not want to run with an
outdated or future db, so we'll terminate if we can't upgrade or
the version is newer than what we understand.
Signed-off-by: Christian Decker <decker.christian@gmai.com>
Some fields were redundant, some are simply moved into 'struct lightningd'.
All routines updated to hand 'struct lightningd *ld' now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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>
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>
Now we're always sync, just use an fd. Put the hsm_sync_read() helper
here, too, and do HSM init sync which makes things much simpler.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
They share some fields, but they're basically different, and it's clearest
to treat them differently in most places.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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.
We use a file descriptor, so when we consume an entry, we move past it
(and everyone shares a file offset, so this works).
The file contains packet names prefixed by - (treat fd as closed when
we try to write this packet), + (write the packet then ensure the file
descriptor fails), or @ ("lose" the packet then ensure the file
descriptor fails).
The sync and async peer-write functions hook this in automatically.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Header from folded patch 'test-run-cryptomsg__fix_compilation.patch':
test/run-cryptomsg: fix compilation.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We alternated between using a sha256 and using a privkey, but there are
numerous places where we have a random 32 bytes which are neither.
This fixes many of them (plus, struct privkey is now defined in terms of
struct secret).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Adds a new command line flag `--dev-broadcast-interval=<ms>` that
allows us to specify how often the staggered broadcast should
trigger. The value is passed down to `gossipd` via an init message.
This is mainly useful for integration tests, since we do not want to
wait forever for gossip to propagate.
This lets us link HTLCs from one peer to another; but for the moment it
simply means we can adjust balance when an HTLC is fulfilled.
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>
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>
Now we hand peers off to the gossip daemon, to do the INIT handshake and
re-transmit/receive gossip. They may stay there forever if neither we nor
them wants to open a channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Christian Decker
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