0.8.2

.editorconfig

@@ -10,6 +10,7 @@ trim_trailing_whitespace = true
 
 [{**.c,**.h,Makefile}]
 indent_style = tab
+indent_size = 8
 
 [**.py]
 indent_style = space

.gitignore

@@ -33,6 +33,7 @@ external/libbacktrace.la
 test/test_protocol
 test/test_sphinx
 tests/.pytest.restart
+tests/plugins/test_libplugin
 gossip_store
 .pytest_cache
 tools/headerversions
@@ -43,6 +44,4 @@ contrib/pylightning/pylightning.egg-info/
 contrib/pyln-*/build/
 contrib/pyln-*/dist/
 contrib/pyln-*/pyln_*.egg-info/
-devtools/create-gossipstore
-contrib/compose/groestlcoin_datadir/
-contrib/compose/clightning_groestlcoin_datadir/
+plugins/keysend

.travis.yml

@@ -38,7 +38,6 @@ env:
 cache:
   directories:
     - dependencies
-    - external
 
 script:
   .travis/build.sh

.travis/build.sh

@@ -36,8 +36,6 @@ pip3 install --user -U --quiet --progress-bar off \
 
 pip3 install --user -U --quiet --progress-bar off \
      -r requirements.txt \
-     -r tests/requirements.txt \
-     -r doc/requirements.txt \
      -r contrib/pyln-client/requirements.txt \
      -r contrib/pyln-proto/requirements.txt \
      -r contrib/pyln-testing/requirements.txt

CHANGELOG.md

@@ -4,7 +4,84 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.8.1-rc3] - 2020-02-12: "Channel to the Moon"
+
+## [0.8.2] - 2020-04-30: "A Scalable Ethereum Blockchain"
+
+This release was named by @arowser.
+
+### Added
+
+ - pay: The `keysend` plugin implements the ability to receive spontaneous payments (keysend) ([3611](https://github.com/ElementsProject/lightning/pull/3611))
+ - Plugin: the Bitcoin backend plugin API is now final. ([3620](https://github.com/ElementsProject/lightning/pull/3620))
+ - Plugin: `htlc_accepted` hook can now offer a replacement onion `payload`. ([3611](https://github.com/ElementsProject/lightning/pull/3611))
+ - Plugin: `feature_set` object added to `init` ([3612](https://github.com/ElementsProject/lightning/pull/3612))
+ - Plugin: 'flag'-type option now available. ([3586](https://github.com/ElementsProject/lightning/pull/3586))
+ - JSON API: New `getsharedsecret` command, which lets you compute a shared secret with this node knowing only a public point. This implements the BOLT standard of hashing the ECDH point, and is incompatible with ECIES. ([3490](https://github.com/ElementsProject/lightning/pull/3490))
+ - JSON API: `large-channels` option to negotiate opening larger channels. ([3612](https://github.com/ElementsProject/lightning/pull/3612))
+ - JSON API: New optional parameter to the `close` command to control the closing transaction fee negotiation back off step ([3390](https://github.com/ElementsProject/lightning/pull/3390))
+ - JSON API: `connect` returns `features` of the connected peer on success. ([3612](https://github.com/ElementsProject/lightning/pull/3612))
+ - JSON API: `listpeers` now has `receivable_msat` ([3572](https://github.com/ElementsProject/lightning/pull/3572))
+ - JSON API: The fields "opening", "mutual_close", "unilateral_close", "delayed_to_us", "htlc_resolution" and "penalty" have been added to the `feerates` command. ([3570](https://github.com/ElementsProject/lightning/pull/3570))
+ - JSON API: "htlc_timeout_satoshis" and "htlc_success_satoshis" fields have been added to the `feerates` command. ([3570](https://github.com/ElementsProject/lightning/pull/3570))
+ - pyln now sends proper error on bad calls to plugin methods ([3640](https://github.com/ElementsProject/lightning/pull/3640))
+ - devtools: The `onion` tool can now generate, compress and decompress onions for rendez-vous routing ([3557](https://github.com/ElementsProject/lightning/pull/3557))
+ - doc: An FAQ was added, accessible at https://lightning.readthedocs.io/FAQ.html ([3551](https://github.com/ElementsProject/lightning/pull/3551))
+
+### Changed
+
+ - We now use a higher feerate for resolving onchain HTLCs and for penalty transactions ([3592](https://github.com/ElementsProject/lightning/pull/3592))
+ - We now announce multiple addresses of the same type, if given. ([3609](https://github.com/ElementsProject/lightning/pull/3609))
+ - pay: Improved the performance of the `pay`-plugin by limiting the `listchannels` when computing the shadow route. ([3617](https://github.com/ElementsProject/lightning/pull/3617))
+ - JSON API: `invoice` `exposeprivatechannels` now includes explicitly named channels even if they seem like dead-ends. ([3633](https://github.com/ElementsProject/lightning/pull/3633))
+ - Added workaround for lnd rejecting our commitment_signed when we send an update_fee after channel confirmed. ([3634](https://github.com/ElementsProject/lightning/pull/3634))
+ - We now batch the requests for fee estimation to our Bitcoin backend. ([3570](https://github.com/ElementsProject/lightning/pull/3570))
+ - We now get more fine-grained fee estimation from our Bitcoin backend. ([3570](https://github.com/ElementsProject/lightning/pull/3570))
+ - Forwarding messages is now much faster (less inter-daemon traffic) ([3547](https://github.com/ElementsProject/lightning/pull/3547))
+ - dependencies: We no longer depend on python2 which has reached end-of-life ([3552](https://github.com/ElementsProject/lightning/pull/3552))
+
+### Deprecated
+
+Note: You should always set `allow-deprecated-apis=false` to test for changes.
+
+ - JSON API: `fundchannel_start` `satoshi` field really deprecated now (use `amount`). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: The "urgent", "slow", and "normal" field of the `feerates` command are now deprecated. ([3570](https://github.com/ElementsProject/lightning/pull/3570))
+ - JSON API: Removed double wrapping of `rpc_command` payload in `rpc_command` JSON field. ([3560](https://github.com/ElementsProject/lightning/pull/3560))
+ - Plugins: htlc_accepted_hook "failure_code" only handles simple cases now, use "failure_message". ([3472](https://github.com/ElementsProject/lightning/pull/3472))
+ - Plugins: invoice_payment_hook "failure_code" only handles simple cases now, use "failure_message". ([3472](https://github.com/ElementsProject/lightning/pull/3472))
+
+### Removed
+
+ - JSON API: `listnodes` `globalfeatures` output (`features` since in 0.7.3). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: `listpeers` `localfeatures` and `globalfeatures` output (`features` since in 0.7.3). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: `peer_connected` hook `localfeatures` and `globalfeatures` output (`features` since in 0.7.3). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: `fundchannel` and `fundchannel_start` `satoshi` parameter removed (renamed to `amount` in 0.7.3). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: `close` `force` parameter removed (deprecated in 0.7.2.1) ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: `sendpay` `description` parameter removed (renamed to `label` in 0.7.0). ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+
+### Fixed
+
+ - Plugins: A crashing plugin will no longer cause a hook call to be delayed indefinitely ([3539](https://github.com/ElementsProject/lightning/pull/3539))
+ - Plugins: setting an 'init' feature bit allows us to accept it from peers. ([3609](https://github.com/ElementsProject/lightning/pull/3609))
+ - Plugins: if an option has a type int or bool, return the option as that type to the plugin's init ([3582](https://github.com/ElementsProject/lightning/pull/3582))
+ - Plugins: Plugins no longer linger indefinitely if their process terminates ([3539](https://github.com/ElementsProject/lightning/pull/3539))
+ - JSON API: Pending RPC method calls are now terminated if the handling plugin exits prematurely. ([3639](https://github.com/ElementsProject/lightning/pull/3639))
+ - JSON API: `fundchannel_start` returns `amount` even when deprecated APIs are enabled. ([3603](https://github.com/ElementsProject/lightning/pull/3603))
+ - JSON API: Passing 0 as minconf to withdraw allows you to use unconfirmed transaction outputs, even if explicitly passed as the `utxos` parameter ([3593](https://github.com/ElementsProject/lightning/pull/3593))
+ - JSON API: `txprepare` doesn't crash lightningd anymore if you pass unconfirmed utxos ([3534](https://github.com/ElementsProject/lightning/pull/3534))
+ - invoice: The invoice parser assumed that an amount without a multiplier was denominated in msatoshi instead of bitcoins. ([3636](https://github.com/ElementsProject/lightning/pull/3636))
+ - pay: The `pay`-plugin was generating non-contiguous shadow routes ([3617](https://github.com/ElementsProject/lightning/pull/3617))
+ - `pay` would crash on expired waits with tried routes ([3630](https://github.com/ElementsProject/lightning/pull/3630))
+ - `pay` would crash when attempting to find cheaper route with exemptfee ([3630](https://github.com/ElementsProject/lightning/pull/3630))
+ - Multiple definition of chainparams on Fedora (or other really recent gcc) ([3631](https://github.com/ElementsProject/lightning/pull/3631))
+ - bcli now handles 0msat outputs in gettxout. ([3605](https://github.com/ElementsProject/lightning/pull/3605))
+ - Fix assertion on reconnect if we fail to run openingd. ([3604](https://github.com/ElementsProject/lightning/pull/3604))
+ - Use lightning-rfc #740 feespike margin factor of 2 ([3589](https://github.com/ElementsProject/lightning/pull/3589))
+ - Always broadcast the latest close transaction at the end of the close fee negotiation, instead of sometimes broadcasting the peer's initial closing proposal. ([3556](https://github.com/ElementsProject/lightning/pull/3556))
+
+### Security
+
+
+## [0.8.1] - 2020-02-12: "Channel to the Moon"
 
 This release named by Vasil Dimov @vasild.
 
@@ -635,7 +712,8 @@ There predate the BOLT specifications, and are only of vague historic interest:
 6. [0.5.1] - 2016-10-21
 7. [0.5.2] - 2016-11-21: "Bitcoin Savings & Trust Daily Interest II"
 
-[0.8.1-rc3]: https://github.com/ElementsProject/lightning/releases/tag/v0.8.1-rc3
+[0.8.2]: https://github.com/ElementsProject/lightning/releases/tag/v0.8.2
+[0.8.1]: https://github.com/ElementsProject/lightning/releases/tag/v0.8.1
 [0.8.0]: https://github.com/ElementsProject/lightning/releases/tag/v0.8.0
 [0.7.3]: https://github.com/ElementsProject/lightning/releases/tag/v0.7.3
 [0.7.2.1]: https://github.com/ElementsProject/lightning/releases/tag/v0.7.2.1

Dockerfile

@@ -43,7 +43,7 @@ RUN mkdir /opt/groestlcoin && cd /opt/groestlcoin \
 FROM debian:stretch-slim as builder
 
 ENV LIGHTNINGD_VERSION=master
-RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates autoconf automake build-essential git libtool python python3 python3-mako wget gnupg dirmngr git gettext
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates autoconf automake build-essential git libtool python3 python3-mako wget gnupg dirmngr git gettext
 
 RUN wget -q https://zlib.net/zlib-1.2.11.tar.gz \
 && tar xvf zlib-1.2.11.tar.gz \

Makefile

@@ -15,7 +15,7 @@ CCANDIR := ccan
 
 # Where we keep the BOLT RFCs
 BOLTDIR := ../lightning-rfc/
-BOLTVERSION := 17df7f2bba4dab844569c3305201606dee800741
+BOLTVERSION := 4107c69e315b4f33d5b00459bef919bcfaa64bf2
 
 -include config.vars
 
@@ -49,7 +49,7 @@ endif
 
 ifeq ($(COMPAT),1)
 # We support compatibility with pre-0.6.
-COMPAT_CFLAGS=-DCOMPAT_V052=1 -DCOMPAT_V060=1 -DCOMPAT_V061=1 -DCOMPAT_V062=1 -DCOMPAT_V070=1 -DCOMPAT_V073=1 -DCOMPAT_V080=1
+COMPAT_CFLAGS=-DCOMPAT_V052=1 -DCOMPAT_V060=1 -DCOMPAT_V061=1 -DCOMPAT_V062=1 -DCOMPAT_V070=1 -DCOMPAT_V072=1 -DCOMPAT_V073=1 -DCOMPAT_V080=1 -DCOMPAT_V081=1
 endif
 
 # Timeout shortly before the 600 second travis silence timeout
@@ -192,6 +192,12 @@ ALL_PROGRAMS =
 
 CPPFLAGS += -DBINTOPKGLIBEXECDIR="\"$(shell sh tools/rel.sh $(bindir) $(pkglibexecdir))\""
 CFLAGS = $(CPPFLAGS) $(CWARNFLAGS) $(CDEBUGFLAGS) $(COPTFLAGS) -I $(CCANDIR) $(EXTERNAL_INCLUDE_FLAGS) -I . -I/usr/local/include $(FEATURES) $(COVFLAGS) $(DEV_CFLAGS) -DSHACHAIN_BITS=48 -DJSMN_PARENT_LINKS $(PIE_CFLAGS) $(COMPAT_CFLAGS) -DBUILD_ELEMENTS=1
+# If CFLAGS is already set in the environment of make (to whatever value, it
+# does not matter) then it would export it to subprocesses with the above value
+# we set, including CWARNFLAGS which by default contains -Wall -Werror. This
+# breaks at least libwally-core which tries to switch off some warnings with
+# -Wno-whatever. So, tell make to not export our CFLAGS to subprocesses.
+unexport CFLAGS
 
 # We can get configurator to run a different compile cmd to cross-configure.
 CONFIGURATOR_CC := $(CC)
@@ -262,11 +268,11 @@ check: check-units installcheck pytest
 
 pytest: $(ALL_PROGRAMS)
 ifeq ($(PYTEST),)
-	@echo "py.test is required to run the integration tests, please install using 'pip3 install -r tests/requirements.txt', and rerun 'configure'."
+	@echo "py.test is required to run the integration tests, please install using 'pip3 install -r requirements.txt', and rerun 'configure'."
 	exit 1
 else
 # Explicitly hand DEVELOPER and VALGRIND so you can override on make cmd line.
-	PYTHONPATH=`pwd`/contrib/pyln-client:`pwd`/contrib/pyln-testing:`pwd`/contrib/pylightning:`pwd`/contrib/pyln-proto/:$(PYTHONPATH) TEST_DEBUG=1 DEVELOPER=$(DEVELOPER) VALGRIND=$(VALGRIND) $(PYTEST) tests/ $(PYTEST_OPTS)
+	PYTHONPATH=`pwd`/contrib/pyln-client:`pwd`/contrib/pyln-testing:`pwd`/contrib/pyln-proto/:$(PYTHONPATH) TEST_DEBUG=1 DEVELOPER=$(DEVELOPER) VALGRIND=$(VALGRIND) $(PYTEST) tests/ $(PYTEST_OPTS)
 endif
 
 # Keep includes in alpha order.
@@ -379,7 +385,7 @@ ccan/ccan/cdump/tools/cdump-enumstr.o: $(CCAN_HEADERS) Makefile
 
 gen_version.h: FORCE
 	@(echo "#define VERSION \"$(VERSION)\"" && echo "#define BUILD_FEATURES \"$(FEATURES)\"") > [email protected]
-	@if cmp [email protected] $@ >/dev/null 2>&2; then rm -f [email protected]; else mv [email protected] $@; echo Version updated; fi
+	@if cmp [email protected] $@ >/dev/null 2>&1; then rm -f [email protected]; else mv [email protected] $@; echo Version updated; fi
 
 # That forces this rule to be run every time, too.
 gen_header_versions.h: tools/headerversions
@@ -503,7 +509,7 @@ PKGLIBEXEC_PROGRAMS = \
 	       lightningd/lightning_hsmd \
 	       lightningd/lightning_onchaind \
 	       lightningd/lightning_openingd
-PLUGINS=plugins/pay plugins/autoclean plugins/fundchannel plugins/bcli
+PLUGINS=plugins/pay plugins/autoclean plugins/fundchannel plugins/bcli plugins/keysend
 
 install-program: installdirs $(BIN_PROGRAMS) $(PKGLIBEXEC_PROGRAMS) $(PLUGINS)
 	@$(NORMAL_INSTALL)

README.md

@@ -11,6 +11,7 @@ c-lightning is a lightweight, highly customizable and [standard compliant][std]
 	* [Sending and Receiving Payments](#sending-and-receiving-payments)
 	* [Configuration File](#configuration-file)
 * [Further Information](#further-information)
+    * [FAQ](doc/FAQ.md)
     * [Pruning](#pruning)
     * [HD wallet encryption](#hd-wallet-encryption)
 	* [Developers](#developers)
@@ -116,9 +117,7 @@ open a channel:
 ```bash
 # Returns an address <address>
 lightning-cli newaddr
-
-    # Returns a transaction id <txid>
-    groestlcoin-cli -testnet sendtoaddress <address> <amount_in_groestlcoins>
+```
 
 `lightningd` will register the funds once the transaction is confirmed.
 

bitcoin/script.c

@@ -8,6 +8,7 @@
 #include <ccan/crypto/sha256/sha256.h>
 #include <ccan/endian/endian.h>
 #include <ccan/mem/mem.h>
+#include <common/utils.h>
 
 /* Some standard ops */
 #define OP_0		0x00
@@ -451,8 +452,7 @@ u8 **bitcoin_witness_sig_and_element(const tal_t *ctx,
 
 	witness[0] = stack_sig(witness, sig);
 	witness[1] = tal_dup_arr(witness, u8, elem, elemsize, 0);
-	witness[2] = tal_dup_arr(witness, u8,
-				 witnessscript, tal_count(witnessscript), 0);
+	witness[2] = tal_dup_talarr(witness, u8, witnessscript);
 
 	return witness;
 }
@@ -675,7 +675,7 @@ u8 **bitcoin_witness_htlc_timeout_tx(const tal_t *ctx,
 	witness[1] = stack_sig(witness, remotehtlcsig);
 	witness[2] = stack_sig(witness, localhtlcsig);
 	witness[3] = stack_number(witness, 0);
-	witness[4] = tal_dup_arr(witness, u8, wscript, tal_count(wscript), 0);
+	witness[4] = tal_dup_talarr(witness, u8, wscript);
 
 	return witness;
 }
@@ -692,7 +692,7 @@ u8 **bitcoin_witness_htlc_success_tx(const tal_t *ctx,
 	witness[1] = stack_sig(witness, remotesig);
 	witness[2] = stack_sig(witness, localhtlcsig);
 	witness[3] = stack_preimage(witness, preimage);
-	witness[4] = tal_dup_arr(witness, u8, wscript, tal_count(wscript), 0);
+	witness[4] = tal_dup_talarr(witness, u8, wscript);
 
 	return witness;
 }

bitcoin/short_channel_id.h

@@ -19,8 +19,8 @@ STRUCTEQ_DEF(short_channel_id, 0, u64);
 /* BOLT #7:
  *
  * - MUST set `node_id_1` and `node_id_2` to the public keys of the two nodes
- * operating the channel, such that `node_id_1` is the numerically-lesser of the
- * two DER-encoded keys sorted in ascending numerical order.
+ * operating the channel, such that `node_id_1` is the lexicographically-lesser of the
+ * two compressed keys sorted in ascending lexicographic order.
  *...
  *   - if the origin node is `node_id_1` in the message:
  *     - MUST set the `direction` bit of `channel_flags` to 0.

bitcoin/tx.c

@@ -98,28 +98,42 @@ static struct amount_sat bitcoin_tx_compute_fee(const struct bitcoin_tx *tx)
 	return fee;
 }
 
-int elements_tx_add_fee_output(struct bitcoin_tx *tx)
+/**
+ * Add an explicit fee output if necessary.
+ *
+ * An explicit fee output is only necessary if we are using an elements
+ * transaction, and we have a non-zero fee. This method may be called multiple
+ * times.
+ *
+ * Returns the position of the fee output, or -1 in the case of non-elements
+ * transactions.
+ */
+static int elements_tx_add_fee_output(struct bitcoin_tx *tx)
 {
 	struct amount_sat fee = bitcoin_tx_compute_fee(tx);
-	int pos = -1;
+	int pos;
 	struct witscript *w;
 
 	/* If we aren't using elements, we don't add explicit fee outputs */
 	if (!chainparams->is_elements || amount_sat_eq(fee, AMOUNT_SAT(0)))
 		return -1;
 
 	/* Try to find any existing fee output */
-	for (int i=0; i<tx->wtx->num_outputs; i++) {
-		if (elements_tx_output_is_fee(tx, i)) {
-			assert(pos == -1);
-			pos = i;
-		}
+	for (pos = 0; pos < tx->wtx->num_outputs; pos++) {
+		if (elements_tx_output_is_fee(tx, pos))
+			break;
 	}
 
-	if (pos == -1) {
+	if (pos == tx->wtx->num_outputs) {
 		w = tal(tx->output_witscripts, struct witscript);
 		w->ptr = tal_arr(w, u8, 0);
-		tx->output_witscripts[tx->wtx->num_outputs] = w;
+
+		/* Make sure we have a place to stash the witness script in. */
+		if (tal_count(tx->output_witscripts) < pos + 1) {
+			tal_resize(&tx->output_witscripts, pos + 1);
+		}
+		tx->output_witscripts[pos] = w;
+
 		return bitcoin_tx_add_output(tx, NULL, fee);
 	} else {
 		bitcoin_tx_output_set_amount(tx, pos, fee);
@@ -160,6 +174,12 @@ bool bitcoin_tx_check(const struct bitcoin_tx *tx)
 	size_t written;
 	int flags = WALLY_TX_FLAG_USE_WITNESS;
 
+	if (tal_count(tx->input_amounts) != tx->wtx->num_inputs)
+		return false;
+
+	if (tal_count(tx->output_witscripts) != tx->wtx->num_outputs)
+		return false;
+
 	if (wally_tx_get_length(tx->wtx, flags, &written) != WALLY_OK)
 		return false;
 
@@ -409,6 +429,19 @@ struct bitcoin_tx *bitcoin_tx(const tal_t *ctx,
 	return tx;
 }
 
+void bitcoin_tx_finalize(struct bitcoin_tx *tx)
+{
+	size_t num_outputs, num_inputs;
+	elements_tx_add_fee_output(tx);
+
+	num_outputs = tx->wtx->num_outputs;
+	tal_resize(&(tx->output_witscripts), num_outputs);
+
+	num_inputs = tx->wtx->num_inputs;
+	tal_resize(&tx->input_amounts, num_inputs);
+	assert(bitcoin_tx_check(tx));
+}
+
 struct bitcoin_tx *pull_bitcoin_tx(const tal_t *ctx, const u8 **cursor,
 				   size_t *max)
 {
@@ -471,6 +504,12 @@ struct bitcoin_tx *bitcoin_tx_from_hex(const tal_t *ctx, const char *hex,
 		goto fail_free_tx;
 
 	tal_free(linear_tx);
+
+	tx->output_witscripts =
+	    tal_arrz(tx, struct witscript *, tx->wtx->num_outputs);
+	tx->input_amounts =
+	    tal_arrz(tx, struct amount_sat *, tx->wtx->num_inputs);
+
 	return tx;
 
 fail_free_tx: