Commit Graph

156 Commits

Author SHA1 Message Date
Rusty Russell 168009c105 features: require dependent features at init handshake.
This simplifies our test matrix, as we never have to handle talking
to peers that specify one but not the other.

This is particularly important for option_anchor_outputs which
assumes option_static_remotekey.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-14 11:51:14 +09:30
Rusty Russell ffbb409b47 amount: use initializers everywhere.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-06 09:36:47 +09:30
niftynei bc5a817100 elements: convenience methods for dealing with assets
We don't preserve detailed asset information at the moment, so provide a
way to convert from a sat to an amount_asset struct.

We also need a way to convert from an 'amount_asset' to a 'value' for
elements, which for explicit (i.e. non-blinded) asssets is a 0x01 prefix
plus the big-endian encoded value.
2020-07-13 11:37:24 +09:30
Rusty Russell 731e037b36 change_amount: routine to determine if change output is worthwhile.
This can be used by plugins which create their own txs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-07-08 21:07:20 +02:00
Rusty Russell a9427f1a8d bitcoin/feerate: new exposure for feerate parsing outside lightningd.
This exposes the numeric part of param_feerate() as param_feerate_val().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-07-08 21:07:20 +02:00
Saibato eea6b33154 connect/tor: Set errno, if connection failed we want to reflect this.
Changelog-None:

Signed-off-by: Saibato <saibato.naga@pm.me>
2020-07-01 11:21:58 +02:00
Saibato 2b0aba13a8 connectd/connectd: Display an error hint for V3 tor onions when connect fail.
@thestick613 noticed that since tor version below 0.3.2.2-alpha
will not support V3 ed25519 address formats, the error handling
is not that helpful in the error message from cli.
So now we add an hint.

Changelog-None:

Signed-off-by: Saibato <saibato.naga@pm.me>

connectd/connectd.h; Add helper function to update conn error list

Signed-off-by: Saibato <saibato.naga@pm.me>
2020-07-01 11:21:58 +02:00
niftynei 2e9c387f45 coin_moves: update withdrawal logic to account for 'variable owner' txs
Our existing coin_moves tracking logic assumed that any tx we had an
input in belonged to *all* of our wallet (not a bad assumption as long
as there was no way to update a tx that spends our wallets)

Now that we've got `signpsbt` implemented, however, we need to be
careful about how we account for withdrawals. For now we do a best guess
at what the feerate is, and lump all of our spent outputs as a
'withdrawal' when it's impossible to disambiguate
2020-06-29 16:10:05 +02:00
niftynei 559f88faa1 psbt: add serialize to/from wire for psbts 2020-05-21 18:45:07 +09:30
Rusty Russell b920d4d21b wire: make fromwire_fail return non-const, use it more
It returns NULL, so you can simply `return fromwire_fail(...)`
if you want to return NULL in this case.  Use that more.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-20 11:36:13 +02:00
niftynei fbe50e087a setup: create a common setup which will handle the wally-context
Since we now over-write the wally malloc/free functions, we need to do
so for tests as well. Here we pull up all of the common setup/teardown
logic into a separate place, and update the tests that use libwally to
use the new common_setup core

Changelog-None
2020-05-19 13:35:42 +09:30
Rusty Russell cfb320c972 wire: move remaining bitcoin functions out to bitcoin/ files.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
Rusty Russell 197d1bcef2 wire: move towire/fromwire_short_channel_id out to bitcoin/short_channel_id.c
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
Rusty Russell 4dbfce6057 wire: move towire/fromwire_preimage out to bitcoin/preimage.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
Rusty Russell 27220646c3 common/wire: move bitcoin-specific marshalling functions into bitcoin files.
We did this originally because these types are referred to in the bolts, and we
had no way of injecting the correct include lines into those.  Now we do, so
there's less excuse for this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
Rusty Russell fda5f0b427 common/channel_id: move channel_id into its own file.
The definition was in wire/wire.h, and helper functions in fromwire.c!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
Rusty Russell b0c9059602 tools/generate-wire: no more lonely messages!
When we have only a single member in a TLV (e.g. an optional u64),
wrapping it in a struct is awkward.  This changes it to directly
access those fields.

This is not only more elegant (60 fewer lines), it would also be
more cache friendly.  That's right: cache hot singles!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-06 14:56:09 -05:00
Sebastian Falbesoner 84ef0cf7fa connectd: fix '~' comment (s/pubkey/node_id/)
Usage of node_id was introduced with commit a2fa699e0e.

Changelog-None
2020-05-04 12:32:02 +02:00
Rusty Russell b29d1ed3ff channeld: support HTLCs with blinding (EXPERIMENTAL_FEATURES)
Note that it's channeld which calculates the shared secret, too.  This
minimizes the work that lightningd has to do, at cost of passing this
through.

We also don't yet save the blinding field(s) to the database.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-14 12:51:18 +09:30
darosior 7ae8e21247 connectd: add darosior's seed node 2020-04-14 10:09:38 +09:30
Rusty Russell 3b4a06f52b common: generalize ecdh function.
common/onion is going to need to use this for the case where it finds a blinding
seed inside the TLV.  But how it does ecdh is daemon-specific.

We already had this problem for devtools/gossipwith, which supplied a
special hsm_do_ecdh().  This just makes it more general.

So we create a generic ecdh() interface, with a specific implementation
which subdaemons and lightningd can use.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-04 16:08:49 +10:30
Rusty Russell 2f1502abf4 cleanup: make 'u8 *features' and 'struct feature_set *fset' more explicit.
It's almost always "their_features" and "our_features" respectively, so
make those names clear.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell cf43e44378 common/features: don't use internal global.
Turns out that unnecessary: all callers can access the feature_set,
so make it much more like a normal primitive.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell 15f54878e4 connectd: do feature bits check after init exchange.
This will help with the next patch, where we wean off using a global
for features: connectd.c has access to the feature bits.

Since connectd might now want to send a message, it needs the crypto_state
non-const, which makes this less trivial than it would otherwise be.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell b7db588a8a plugin: remove boutique features.
We now manipulate the global features directly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell c95e58ad4b subdaemons: initialize feature routines with explicit feature_set.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell afb76392e4 common/features: use bitmaps internally, have explicit init function.
This is to prepare for dynamic features, including making plugins first
class citizens at setting them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell d881a4bd66 BOLT: update to latest version.
This is all typo/clarity fixes, no substantive changes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell a430abf899 connectd: permit multiple descriptors of the same type.
This restriction was removed from the spec as of
86c2ebcc5973a4133d3ce4d80ae1c203061a1646.

We also fix up some strange formatting in that part of the documentation.

Changelog-changed: We now announce multiple addresses of the same type, if given.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell 2aad3ffcf8 common: tal_dup_talarr() helper.
This is a common thing to do, so create a macro.

Unfortunately, it still needs the type arg, because the paramter may
be const, and the return cannot be, and C doesn't have a general
"(-const)" cast.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-02-27 14:16:16 +10:30
Christian Decker 8d6c8c3cd1 connectd: Pass the init_featurebits down to connectd and use in init
The `init_featurebits` are computed at startup, and then cached
indefinitely. They are then used whenever a new `init` handshake is performed.

We could add a new message to push updates to `connectd` whenever a plugin is
added or removed, but that's up for discussion.
2020-02-11 13:53:31 +10:30
Christian Decker 9b976da3bc features: Add featurebits_or helper to combine two featurebitstrings
We will be doing this when collecting featurebits from the plugins, so make
this a reusable function.
2020-02-11 13:53:31 +10:30
Vasil Dimov 125d63e1cc connectd: use PRIu8 for printing u8 instead of %d
Changelog-None
2020-02-03 15:38:11 +00:00
Wladimir J. van der Laan e4c6fd89b7 Add missing `extern` qualifiers for gcc 10
GCC 10 defaults to `-fno-common`. no longer automatically sharing
global variable definitions, which makes it important to define
them in only one place (otherwise there will be duplicate definition
errors). Add `extern` qualifiers where (I think) is the best place for
them.
2020-02-02 12:59:17 +10:30
Vasil Dimov 55173a56b7 Use dedicated type for error codes
Before this patch we used `int` for error codes. The problem with
`int` is that we try to pass it to/from wire and the size of `int` is
not defined by the standard. So a sender with 4-byte `int` would write
4 bytes to the wire and a receiver with 2-byte `int` (for example) would
read just 2 bytes from the wire.

To resolve this:

* Introduce an error code type with a known size:
  `typedef s32 errcode_t`.

* Change all error code macros to constants of type `errcode_t`.
  Constants also play better with gdb - it would visualize the name of
  the constant instead of the numeric value.

* Change all functions that take error codes to take the new type
  `errcode_t` instead of `int`.

* Introduce towire / fromwire functions to send / receive the newly added
  type `errcode_t` and use it instead of `towire_int()`.

In addition:

* Remove the now unneeded `towire_int()`.

* Replace a hardcoded error code `-2` with a new constant
  `INVOICE_EXPIRED_DURING_WAIT` (903).

Changelog-Changed: The waitinvoice command would now return error code 903 to designate that the invoice expired during wait, instead of the previous -2
2020-01-31 06:02:47 +00:00
Rusty Russell 1099f6a5e1 common: use struct onionreply.
This makes it clear we're dealing with a message which is a wrapped error
reply (needing unwrap_onionreply), not an already-wrapped one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-23 16:17:42 +10:30
Vasil Dimov fb7c006187 wire: add towire_int() and use it in connectd
Add towire_int() and fromwire_int() functions to "(de)serialize"
"int". This will only work as long as both the caller of towire_int()
and the caller of fromwire_int() use the same in-memory representation
of signed integers and have the same sizeof(int).

Changelog-None
2020-01-21 16:59:18 +01:00
Vasil Dimov fc75d8a9e6 connectd: add own err codes instead of generic -1
Make it possible for connectd to send an error code to lightningd in
addition to the error message. Introduce two new error codes, replacing
the catch-all -1.

This change, together with
https://github.com/ElementsProject/lightning/pull/3395
will implement https://github.com/ElementsProject/lightning/issues/3366

Changelog-Changed: The `connect` command now returns its own error codes instead of a generic -1.
2020-01-21 16:59:18 +01:00
Saibato 9824c14c9b Minor source code style change of comments.
Signed-off-by: Saibato <saibato.naga@pm.me>
2020-01-10 17:53:31 +01:00
Saibato 291fc48cd3 Fix an edge case where the connect answer is not zero and not error.
The tor proxy might want auth 0x2 or answer what ever not defined
in https://tools.ietf.org/html/rfc1928.

Changelog-Fixed: TOR: We don't send any further request if the return code of connect is not zero or error.

Signed-off-by: Saibato <saibato.naga@pm.me>
2020-01-10 17:53:31 +01:00
Vasil Dimov 26d081d500 connectd: translate socks5 errors to human strings
For example:
"Tor connect out for host example.com error: 4 "
becomes:
"Error connecting to example.com: Tor server reply: host unreachable"

Also clarify the error:
"Connected out for example.com error"
to:
"Connected out for example.com error: authentication required"
because the only reason it could have failed is that the Tor socks5
server did not like any of our proposed auth methods and we only
proposed "no auth".

Changelog-None
2020-01-09 14:51:49 +01:00
Vasil Dimov 2ea91f834c Add the missing space between "if" and "("
Changelog-None
2020-01-06 12:57:59 +01:00
darosior 77eb9e45b2 connectd: return error when no common chain at init
This is useful for testing.
2019-12-28 14:22:05 +01:00
darosior 1e15e13de0 connectd: clean up a redundant check 2019-12-28 14:22:05 +01:00
darosior 9dcbf20a7a connectd: check all chain hashs of the TLV array 2019-12-28 14:22:05 +01:00
lisa neigut f6ff5e5b19 connectd: make failure message more descriptive 2019-12-04 15:32:31 -06:00
Saibato f6006f43a9 Init commit to be able to create a tor static service on the fly.
We  want to have a static Tor service created from a blob bound to
our node on cmdline

Changelog-added: persistent Tor address support
Changelog-added: allow the Tor inbound service port differ from 9735

Signed-off-by: Saibato <saibato.naga@pm.me>

Add base64 encode/decode to common

We need this to encode the blob for the tor service

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-12-03 23:35:18 +01:00
darosior 3322048774 connectd: add network to init message
Changelog-Added: protocol: We now signal the network we are running on at init.
2019-11-29 21:17:08 +01:00
darosior e6b8a02446 connectd: setup chainparams
We are going to signal the genesis block hash in the init message.
2019-11-29 21:17:08 +01:00
Rusty Russell 3b37c9d426 common/features: clean up feature handling for different cases.
The spec is (RSN!) going to explicitly denote where each feature should
be presented, so create that infrastructure.

Incorporate the new proposed bolt11 features, which need this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00