1. Add special option where an empty host means 'wildcard for IPv4 and/or IPv6'
which means ':1234' can be used to set only the portnum.
2. Only add this protocol wildcard if --autolisten=1 (default)
and no other addresses specified.
3. Pass it down to gossipd, so it can handle errors correctly: in most cases,
it's fatal not to be able to bind to a port, but for this case, it's OK
if we can only bind to one of IPv4/v6 (fatal iff neither).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This replacement is a little menial, but it explicitly catches all
the places where we allow a local socket. The actual implementation of
opening a AF_UNIX socket is almost hidden in the patch.
The detection of "valid address" is now more complex:
p->addr.itype != ADDR_INTERNAL_WIREADDR || p->addr.u.wireaddr.type != ADDR_TYPE_PADDING
But most places we do this, we should audit: I'm pretty sure we can't
get an invalid address any more from gossipd (they may be in db, but
we should fix that too).
Closes: #1323
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It does all the other address handling, do this too. It also proves useful
as we clean up wildcard address handling.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's become clear that our network options are insufficient, with the coming
addition of Tor and unix domain support.
Currently:
1. We always bind to local IPv4 and IPv6 sockets, unless --port=0, --offline,
or any address is specified explicitly. If they're routable, we announce.
2. --addr is used to announce, but not to control binding.
After this change:
1. --port is deprecated.
2. --addr controls what we bind to and announce.
3. --bind-addr/--announce-addr can be used to control one and not the other.
4. Unless --autolisten=0, we add local IPv4 & IPv6 port 9735 (and announce if they are routable).
5. --offline still overrides listening (though announcing is still the same).
This means we can bind to as many ports/interfaces as we want, and for
special effects we can announce different things (eg. we're sitting
behind a port forward or a proxy).
What remains to implement is semi-automatic binding: we should be able
to say '--addr=0.0.0.0:9999' and have the address resolve at bind
time, or even '--addr=0.0.0.0:0' and have the port autoresolve too
(you could determine what it was from 'lightning-cli getinfo'.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We set no_reconnect with --offline, but that doesn't work if !DEVELOPER.
Make the flag positive, and non-DEVELOPER mode for gossipd.
We also don't override portnum with --offline, but have an explicit
'listen' flag.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We can create the hsm file from python directly; that works even if we
don't have DEVELOPER set, and is simpler.
We add a test that the aliases are correct.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Originally we were supposed to tell the HSM we had just created the directory,
otherwise it wouldn't create a new seed. But we modified it to check if
there was a seed file anyway: just move that logic into a branch of hsmd.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is intended to recover from an inconsistent state, involving
`onchaind`. Should we for some reason not restore the `onchaind` process
correctly we can instruct `lightningd` to go back in time and just replay
everything.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Includes closing off stdout and stderr. We don't do it directly in the
arg parser, as we want to interact normally (eg with other errors) before
we turn off stdout/stderr.
Fixes: #986
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We move it into jsonrpc where it belongs, and make it fail the command.
This means it can tell us exactly what was wrong.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
With the new 'human-readable' mode of lightning-cli, this actually produces
a valid config file. It's a bit hacky though...
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Might help alleviate some of the issues of having to run a full-node
on the same machine as `lightningd`.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
There is an interaction between --ipaddr and --port, namely that the
default port is used when parsing --ipaddr if --port comes after the
--ipaddr, and --port is used if it comes before it. Adding a port to
--ipaddr still trumps everything else, but this way we correctly set
port in the address.
Reported-by: Wladimir J. van der Laan @laanwj
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Before this patch:
```
$ lightningd/lightningd
lightningd(PID): Creating lightningd dir /root/.lightning (because chdir gave No such file or directory)
lightningd(PID): Creating database
```
After this patch:
```
$ lightningd/lightningd
lightningd(PID): Creating lightningd dir /root/.lightning
lightningd(PID): Creating database
```
This can be used for upgrades to make sure you're not using deprecated
options, JSON commands, JSON fields, etc.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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 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 wire protocol uses this, in the assumption that we'll never see feerates
in excess of 4294967 satoshi per kiloweight.
So let's use that consistently internally as well.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Christian Decker
Igor Cota
ZmnSCPxj
Corné Plooy
practicalswift
libbitc
windsok
Luca Vaccaro