This will later be used to determine whether or not we should announce
ourselves as a node.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
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>
It makes it impossible to embed an ipaddr in another structure, since we
always try to skip over any zeroes, which may swallow a following field.
Do the skip specially for the case where we're parsing routing messages:
we never use padding for our own internal messages anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. The code to skip over padding didn't take into account max.
2. It also didn't use symbolic names.
3. We are not supposed to fail on unknown addresses, just stop parsing.
4. We don't use the read_ip/write_ip code, so get rid of it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I missed these when I removed the legacy daemon. We also remove the
min_blocks field which was always 0.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Use a negative timestamp as the flag for this, making the test simple.
This allows valgrind to detect that we're accessing them prematurely,
including across the wire on gossip_getchannels_entry.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I had a routing problem, and wrote a simple unit test which passed. So
I wrote one which copied the failure case (and importantly, had a non-1
fee factor), which triggerd it.
In that real example, we underflowed which resulted in us not finding
a route. Simply don't consider routes which are infinite.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we initialize last_timestamp to 0, we ignore any initial update
with this timestamp. Don't compare it if we don't already have an
update, and don't initialize it, so valgrind can tell us if we use
it accidentally.
b'lightning_gossipd(3368): TRACE: Received channel_update for channel 6892:2:1(0)'
b'lightning_gossipd(3368): TRACE: Ignoring outdated update.'
b'lightning_gossipd(3368): TRACE: Received channel_update for channel 6893:2:1(1)'
b'lightning_gossipd(3368): TRACE: Channel 6893:2:1(1) was updated.'
The same logic applies to node_updates, so we do the same there.
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>
To avoid everything pulling in HTLCs stuff to the opening daemon, we
split the channel and commit_tx routines into initial_channel and
initial_commit_tx (no HTLC support) and move full HTLC supporting versions
into channeld.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
As per lightning-rfc change 956e8809d9d1ee87e31b855923579b96943d5e63
"BOLT 7: add chain_hashes values to channel_update and channel_announcment"
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This happens when we either have no channel open, or didn't announce
the channel. This patch just fails the getroute request. I'll later
add the non-broadcast announcement for local channels that should fix
this for unannounced channels.
Fixes the `short_channel_id` being serialized as 4 bytes block height,
3 bytes transaction index and 1 byte output number, to use 3+3+2 as
the spec says.
The reordering in the unit test structs is mainly to be able to still
use `eq_upto` for tests.
The single string-based hostname and port has been retired in favor of
having multiple `struct ipaddr`s from the `node_announcement`. This
breaks the hostnames and ports from IRC, but I didn't bother to
backport ipaddr for it since it is only used in the legacy daemon.
Rather a big commit, but I couldn't figure out how to split it
nicely. It introduces a new message from the channel to the master
signaling that the channel has been announced, so that the master can
take care of announcing the node itself. A provisorial announcement is
created and passed to the HSM, which signs it and passes it back to
the master. Finally the master injects it into gossipd which will take
care of broadcasting it.
The new onion uses the `channel_id` instead of the `node_id` of the
next hop to identify where to forward the payment. So we return the
exact channel chosen by the routing algo, to avoid having to look it
up again later.
Appending the channel direction ensures that the directions will be
treated independently. Without this only one direction would be
forwarded to the peers.
The direction bit was computed in several spots and was inconsistent
in some cases. Now we compute it just in routing, and once when
starting up `channeld`, this avoids recomputing it all over the place.
Before exiting, `channeld` constructs and sends a `channel_update`
marking the channel as disabled. This is the pro-active signalling
that the channel may no longer be used.
The JSON-RPC call `getroute` and the functionality to compute the
actual route have been split so that we can reuse it independently of
the JSON-interface. Since this is now a routing-only method I also
moved it into `routing.[ch]` instead of `pay.c`.
The spec 4af8e1841151f0c6e8151979d6c89d11839b2f65 uses a 32-byte 'channel-id'
field, not to be confused with the 8-byte short ID used by gossip. Rename
appropriately, and update to the new handshake protocol.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Moved the broadcast functionality to broadcast.[ch]. So far this
includes only the enqueuing side of broadcasts, the dequeuing and
actual push to the peer is daemon dependent. This also adds the
broadcast_state to the routing_state and the last broadcast index to
the peer for the legacy daemon.
This was the only time we actually reference non-routing structs in
routing, so moving this out should allow us to get it working in the
new subdaemons.
This allows us to move some legacy functions closer to where they are
actually used, and not worry about them when including routing.h into
the new subdaemons. `struct peer` is the main culprit here.
This used to be part of `lightningd_state` which is being split up for
the various subdaemons. The main change is the addition of the `struct
routing_state` in `routing.h` and the addition of `rstate` in `struct
lightningd_state` for backwards compatibility.
Other than being neater (no more global list to edit!), this lets the
new daemon and old daemon have their own separate routines.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christian Decker
practicalswift
Rusty Russell