This used to be request-specific, but we now want to send
notifications and requests. As a drive-by we also clarify the
ownership of the json_stream instance that is being sent.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Will be used in the next commit to fan out notifications to multiple
subscribing plugins. We can't just use `tal_dup` from outside since
the definition is hidden outside the compilation unit.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Obviously the Facebook relationship status joke was a bit subtle, but I've
continued it anyway because I'm especially susceptible to Dad jokes.
Suggested-by: @niftynei
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
memdump iterates through the various daemons asking them to check for
leaks.
We currently call openingds (there might be none), channelds (there
might be none), then hsmd synchronously (the other daemons). If hsmd
reports a leak, we'll fail the dev-memleak command immediately.
Change the order to call connectd first; that's always async, so we
can happily mark the command still pending.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This causes a compiler warning if we don't do something with the
result (hopefully return immediately!).
We use was_pending() to ignore the result in the case where we
complete a command in a callback (thus really do want to ignore
the result).
This actually fixes one bug: we didn't return after command_fail
in json_getroute with a bad seed value.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Usually, this means they return 'command_param_failed()' if param()
fails, and changing 'command_success(); return;' to 'return
command_success()'.
Occasionally, it's more complex: there's a command_its_complicated()
for the case where we can't exactly determine what the status is,
but it should be considered a last resort.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Handers of a specific form are both designed to be used as callbacks
for param(), and also dispose of the command if something goes wrong.
Make them return the 'struct command_result *' from command_failed(),
or NULL.
Renaming them just makes sense: json_tok_XXX is used for non-command-freeing
parsers too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
These routines free the 'struct command': a common coding error is not
to return immediately.
To catch this, we make them return a non-NULL 'struct command_result
*', and we're going to make the command handlers return the same (to
encourage 'return command_fail(...)'-style usage).
We also provide two sources for external use:
1. command_param_failed() when param() fails.
2. command_its_complicated() for some complex cases.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
These are only supposed to be used when you want the token contents including
surrounding "". We should use this when reporting errors, but usually
we just want to access the tok members directly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Live connections can confuse us; this happens a lot more when we're
running complex plugins, since they make JSONRPC connections while we're
running our tests.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It might be useful to take special precautions inside a plugin when
being run as a plugin (and not as a standalone executable). This env
var is just set so plugins can differentiate correctly. I don't unset
the variable since it shouldn't have any effect on `lightningd`
itself.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The transparent passthrough that was recently introduced would end up
causing phantom quotes to appear around IDs when one of them was a
string. This happened for example when using `lightning-cli`, the code
would copy the quotes from the original request, insert our u64 ID,
and then re-add them on the way back as well.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
check will actually do an RPC error, so if it doesn't, you know it's OK.
This would, of course, be in our man page if we had one :)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
json_escaped.[ch], param.[ch] and jsonrpc_errors.h move from lightningd/
to common/. Tests moved too.
We add a new 'common/json_tok.[ch]' for the common parameter parsing
routines which a plugin might want, taking them out of
lightningd/json.c (which now only contains the lightningd-specific
ones).
The rest is mainly fixing up includes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I want to use param functions in plugins, and they don't have struct
command.
I had to use a special arg to param() for check to flag it as allowing
extra parameters, rather than adding a one-use accessor.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
json_tok* is used with 'struct command', so rename this to match the other
low-level json tok helpers.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We simply look for the id token, and substitute it on the way in/out.
We also need to make sure output is '\n\n' terminated.
I started this because we weren't forwarding complex errors properly
(we treated them as a string), but it's also a huge simplification.
`struct plugin_rpc_request` is eliminated entirely: the information we need
is actually inside `struct command` already.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This (will) avoid the plugin having to walk back from the params object
as it currently does.
No code changes; I removed UNUSED and UNNEEDED labels from the other
parameters though (as *every* json_rpc callback needs to call param()
these days, they're *always* used).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now we've updated ccan/pipecmd, we can use pipecmd_preserve to
preserve stderr for plugins so we see their error spew.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Note that this changes the order of arguments to pipecmd to match the
documentation, so we fix all the callers!
Also make configure re-run when configurator changes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This currently just invokes GDB, but we could generalize it (though
pdb doesn't allow attaching to a running process, other python
debuggers seem to).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This tells the plugin both the `lightning-dir` as well as the
`rpc-filename` to use to talk to `lightningd`. Prior to this they'd
had to guess.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This is prep work for when we sign htlc txs with
SIGHASH_SINGLE|SIGHASH_ANYONECANPAY.
We still deal with raw signatures for the htlc txs at the moment, since
we send them like that across the wire, and changing that was simply too
painful (for the moment?).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We currently hand the feature set from lightningd, but that's confusing
if they were ever different.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The check command allows us to check the parameters of a command
without running it. Example:
lightning-cli check invoice 234 foo desc
We do this by removing the "command_to_check" parameter and then using the
remaining parameters as-is.
I chose the parameter name "command_to_check" instead of just "command" because
it must be unique to all other parameter names for all other commands. Why?
Because it may be ambiguous in the case of a json object, where the parameters are
not necessary ordered. We don't know which one is the command to check and
which one is a parameter.
Signed-off-by: Mark Beckwith <wythe@intrig.com>
We can now set a flag to have param() ignore unexpected parameters.
Normally unexpected parameters are considered errors.
Needed by the check command.
Signed-off-by: Mark Beckwith <wythe@intrig.com>
This used to be a use-after-free bug in which we'd free the plugin and
then still have two connections that expect to be able to operate on
the plugin. This now signals the connections to exit and cleans up
once they do.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We can use the internal buffering of the json_stream instead of
manually building JSON-RPC calls. This makes it a lot easier to handle
these requests.
Notice that we do not flush concurrently and still buffer all the
things, but it avoids double-buffering things.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
If the plugin fails to respond to we may end up hanging indefinitely,
so we limit the time we're willing to wait to 10 seconds.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
I had this really contorted way of iterating over options that could
cause valgrind to choke. This is the much more intuitive way to
iterate.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The final step in the JSON-RPC passthrough: map the result we got from
the plugin back to the original request we got from the client.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This is needed in order to be able to add methods while initializing
the plugins, but before actually moving to the config dir and starting
to listen.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Unlike other daemons, closingd doesn't listen to the master, but runs
simply to its own beat. So instead of responding to the JSON dev_memleak
command, we always check for memory leaks, and make sure that the
python tests fail if they see MEMLEAK in the logs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
For onchaind we need to remove globals from memleak consideration;
we also change the htlc pointer to an htlc copy, which simplifies
things as well.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a bit different from the other cases: we need to iterate through
the peers and ask all the ones in openingd.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need several notleak() annotations here:
1. The temporary structure which is handed to retry_peer_connected().
It's waiting for the master to respond to our connect_reconnected
message.
2. We don't keep a pointer to the io_conn for a peer, so we need to
mark those as not being a leak.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This avoids some very ugly switch() statements which mixed the two,
but we also take the chance to rename 'towire_gossip_' to
'towire_gossipd_' for those inter-daemon messages; they're messages to
gossipd, not gossip messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We now keep multiple commands for a json_connection, and an array of
json_streams.
When a command wants to write something, we allocate a new json_stream
at the end of the array.
We always output from the first available json_stream; once that
command has finished, we free that and move to the next. Once all are
done, we wake the reader.
This means we won't read a new command if output is still pending, but
as most commands don't start writing until they're ready to write
everything, we still get command parallelism.
In particular, you can now 'waitinvoice' and 'delinvoice' and it will
work even though the 'waitinvoice' blocks.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christian Decker
lisa neigut
Mark Beckwith
Richard Bondi
Rusty Russell
arowser
Conor Scott