Commit Graph

36 Commits

Author SHA1 Message Date
Rusty Russell 9d656464f5 bitcoin/pubkey: add pubkey32 primitive for xonly pubkey types.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-12-09 16:40:13 +10:30
Rusty Russell ca2bd98082 unittest: use common_setup / common_shutdown almost everywhere.
Avoids much cut & paste.  Some tests don't need any of it, but most
want at least some of this infrastructure.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-12-02 12:55:09 +10:30
Michael Schmoock bde2806290 chore: fixes a cppcheck false positive
Just applied the same suppression as rusty in:
6635fe12e4 (Rusty Russell    2020-05-15 15:57:29 +0930 146)
/* cppcheck-suppress uninitvar - false positive on f1->bits */

My cppcheck was complaining about the same issue in the following functions.
I wonder why travis does not care though.

Changelog-None
2020-11-03 10:18:08 -06:00
niftynei ddc9500a64 features: add 'feature_bit_sub', which will subtract/unset bits
Given a two sets of featurebits, unset the featurebits in the first set
that are set in the second set
2020-10-26 21:31:24 -05:00
niftynei 0871bf0999 features: have clear_feature_bit correctly resize bitfield
There's a spec rule about only ever sending a correctly sized
feature-bits, so as a precaution we have `clear_feature_bit` correctly
resize when a bit is cleared.
2020-10-26 21:31:24 -05:00
niftynei 303263d381 psbt: clean up interface for setting metadata on PSBT inputs
it's just neater if it's not all wrapped up together, simplifies the
interface a smidge
2020-09-09 19:54:20 +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
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
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 6635fe12e4 common/test/run-features.c: fix cppcheck 1.90 false positive.
We only use sizeof(f1->bits).

```
common/test/run-features.c:84:36: error: Uninitialized variable: f1 [uninitvar]
 for (size_t i = 0; i < ARRAY_SIZE(f1->bits); i++) {
                                   ^
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
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 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 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 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
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
Rusty Russell 09cdbb70eb common: make BOLT11 use the normal feature array.
This was decided at a recent spec meeting: in particular, mpp and
var_onion_optin options will be used here.

We enhanced "features_supported" into "features_unsupported" so it
can return the first un-handlable bit number.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00
Rusty Russell bd55f6d940
common/features: only support a single feature bitset.
This is mainly an internal-only change, especially since we don't
offer any globalfeatures.

However, LND (as of next release) will offer global features, and also
expect option_static_remotekey to be a *global* feature.  So we send
our (merged) feature bitset as both global and local in init, and fold
those bitsets together when we get an init msg.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-11 02:52:04 +00:00
Christian Decker 7283efa5b5 elements: Add amount_asset to support more than just plain satoshis
Currently the only source for amount_asset is the value getter on a tx output,
and we don't hand it too far around (mainly ignoring it if it isn't the
chain's main currency). Eventually we could bubble them up to the wallet, use
them to select outputs or actually support assets in the channels.

Since we don't hand them around too widely I thought it was ok for them to be
pass-by-value rather than having to allocate them and pass them around by
reference. They're just 41 bytes currently so the overhead should be ok.

Signed-off-by: Christian Decker <@cdecker>
2019-10-03 04:32:57 +00:00
Christian Decker c38afc5512 tx: Switch to amount_sat for fee computations
Suggested-by: Rusty Russell <@rustyrussell>
2019-10-03 04:32:57 +00:00
Rusty Russell 2e3eadbe91 common/features: expose feature bitmap low-level functions.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-05 23:39:05 -05:00
Rusty Russell f1b57063f7 bitcoin/tx: use fromwire_fail in pull_bitcoin_tx.
This is the correct way to mark failure: it also sets *max to 0.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-21 03:56:59 +00:00
Lawrence Nahum a9e71d76b5 update libwally to latest version 0.6.9
Also removes a workaround caused by bug in libwally (!95) which has
been fixed.

Signed-off-by: Lawrence Nahum <lawrence@greenaddress.it>
2019-04-23 15:18:57 +02:00
Rusty Russell e0ec9ac521 libwally: update to 0.6.8.
This fixes block parsing on testnet; specifically, non-standard tx versions.

We hit a type bug in libwally (wallt_get_secp_context()) which I had to
work around for the moment, and the updated libsecp adds an optional hash
function arg to the ECDH function.

Fixes: #2563
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-04-13 18:55:15 +02:00
Jon Griffiths 087ef43a0d Call wally_init(0) on startup to enabled assembly-optimised SHA-256
We probably also want to call secp_randomise/wally_secp_randomize here
too, and since these calls all call setup_tmpctx, it probably makes
sense to have a helper function to do all that. Until thats done, I
modified the tests so grepping will show the places where the sequence
of calls is repeated.

Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
2018-11-21 01:18:24 +00:00
Rusty Russell 41b0872f58 Use localfeatures and globalfeatures consistently.
That's what BOLT #1 calls them; make it easier for people to grep.

Reported-by: @niftynei
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-28 04:14:28 +00:00
Rusty Russell 5cf34d6618 Remove tal_len, use tal_count() or tal_bytelen().
tal_count() is used where there's a type, even if it's char or u8, and
tal_bytelen() is going to replace tal_len() for clarity: it's only needed
where a pointer is void.

We shim tal_bytelen() for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-30 11:31:17 +02:00
Rusty Russell 4359f46ffd features: fix features_supported() function.
1. We need to test all bits, not all bytes.
2. Both local and global features need to be supported.
3. Untested code is broken code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-15 15:04:34 +02:00