Make option_static_remotekey non-EXPERIMENTAL now it's in spec.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

CHANGELOG.md

@@ -261,6 +261,7 @@ This release named by @molxyz and [@ctrlbreak](https://twitter.com/ctrlbreak).
 - JSON API: `listpeers`'s `channels` now includes a `private` flag to indicate if channel is announced or not.
 - JSON API: `invoice` route hints may now include private channels if you have no public ones, unless new option `exposeprivatechannels` is false.
 - Plugins: experimental plugin support for `lightningd`, including option passthrough and JSON-RPC passthrough.
+- Protocol: we now support features `option_static_remotekey` and `gossip_queries_ex` for peers.
 
 ### Changed
 

Makefile

@@ -15,7 +15,7 @@ CCANDIR := ccan
 
 # Where we keep the BOLT RFCs
 BOLTDIR := ../lightning-rfc/
-BOLTVERSION := c8e53fe5bf131db142d231e88f2adb3a84876836
+BOLTVERSION := 2afe3559e89520ba28b24ff5739491313217ae13
 
 -include config.vars
 

channeld/channeld.c

@@ -2014,7 +2014,7 @@ static void resend_commitment(struct peer *peer, const struct changed_htlc *last
 			       peer->revocations_received);
 }
 
-/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
+/* BOLT #2:
  *
  * A receiving node:
  *  - if `option_static_remotekey` applies to the commitment transaction:
@@ -2077,7 +2077,7 @@ static void check_future_dataloss_fields(struct peer *peer,
 	peer_failed(peer->pps, &peer->channel_id, "Awaiting unilateral close");
 }
 
-/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
+/* BOLT #2:
  *
  * A receiving node:
  *  - if `option_static_remotekey` applies to the commitment transaction:
@@ -2239,7 +2239,7 @@ static void peer_reconnect(struct peer *peer,
 	get_per_commitment_point(peer->next_index[LOCAL] - 1,
 				 &my_current_per_commitment_point, NULL);
 
-	/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
+	/* BOLT #2:
 	 *
 	 *   - upon reconnection:
 	 *     - if a channel is in an error state:
@@ -2272,7 +2272,6 @@ static void peer_reconnect(struct peer *peer,
 	 *       - MUST set `your_last_per_commitment_secret` to the last
 	 *         `per_commitment_secret` it received
 	 */
-#if EXPERIMENTAL_FEATURES
 	if (peer->channel->option_static_remotekey) {
 		msg = towire_channel_reestablish_option_static_remotekey
 			(NULL, &peer->channel_id,
@@ -2281,9 +2280,7 @@ static void peer_reconnect(struct peer *peer,
 			 last_remote_per_commit_secret,
 			 /* Can send any (valid) point here */
 			 &peer->remote_per_commit);
-	} else
-#endif /* EXPERIMENTAL_FEATURES */
-	if (dataloss_protect) {
+	} else if (dataloss_protect) {
 		msg = towire_channel_reestablish_option_data_loss_protect
 			(NULL, &peer->channel_id,
 			 peer->next_index[LOCAL],
@@ -2310,7 +2307,6 @@ static void peer_reconnect(struct peer *peer,
 	} while (handle_peer_gossip_or_error(peer->pps, &peer->channel_id, msg)
 		 || capture_premature_msg(&premature_msgs, msg));
 
-#if EXPERIMENTAL_FEATURES
 	if (peer->channel->option_static_remotekey) {
 		struct pubkey ignore;
 		if (!fromwire_channel_reestablish_option_static_remotekey(msg,
@@ -2325,9 +2321,7 @@ static void peer_reconnect(struct peer *peer,
 				    wire_type_name(fromwire_peektype(msg)),
 				    tal_hex(msg, msg));
 		}
-	} else
-#endif /* EXPERIMENTAL_FEATURES */
-	if (dataloss_protect) {
+	} else if (dataloss_protect) {
 		if (!fromwire_channel_reestablish_option_data_loss_protect(msg,
 					&channel_id,
 					&next_commitment_number,
@@ -3023,9 +3017,7 @@ static void init_channel(struct peer *peer)
 		     feerate_per_kw[LOCAL], feerate_per_kw[REMOTE],
 		     peer->feerate_min, peer->feerate_max);
 
-#if EXPERIMENTAL_FEATURES
 	status_debug("option_static_remotekey = %u", option_static_remotekey);
-#endif
 
 	if(remote_ann_node_sig && remote_ann_bitcoin_sig) {
 		peer->announcement_node_sigs[REMOTE] = *remote_ann_node_sig;

common/features.c

@@ -9,9 +9,7 @@ static const u32 our_localfeatures[] = {
 	OPTIONAL_FEATURE(LOCAL_UPFRONT_SHUTDOWN_SCRIPT),
 	OPTIONAL_FEATURE(LOCAL_GOSSIP_QUERIES),
 	OPTIONAL_FEATURE(LOCAL_GOSSIP_QUERIES_EX),
-#if EXPERIMENTAL_FEATURES
 	OPTIONAL_FEATURE(LOCAL_STATIC_REMOTEKEY),
-#endif
 };
 
 static const u32 our_globalfeatures[] = {

common/features.h

@@ -53,7 +53,7 @@ void set_feature_bit(u8 **ptr, u32 bit);
 #define LOCAL_GOSSIP_QUERIES			6
 #define LOCAL_GOSSIP_QUERIES_EX			10
 
-/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #9:
+/* BOLT #9:
  * | Bits  | Name                            |...
  * | 12/13| `option_static_remotekey`        |...
  */

common/key_derive.c

@@ -7,18 +7,21 @@
 
 /* BOLT #3:
  *
- * ### `localpubkey`, `remotepubkey`, `local_htlcpubkey`, `remote_htlcpubkey`, `local_delayedpubkey`, and `remote_delayedpubkey` Derivation
+ * ### `localpubkey`, `local_htlcpubkey`, `remote_htlcpubkey`, `local_delayedpubkey`, and `remote_delayedpubkey` Derivation
  *
  * These pubkeys are simply generated by addition from their base points:
  *
  *	pubkey = basepoint + SHA256(per_commitment_point || basepoint) * G
  *
  * The `localpubkey` uses the local node's `payment_basepoint`;
- * the `remotepubkey` uses the remote node's `payment_basepoint`;
  * the `local_htlcpubkey` uses the local node's `htlc_basepoint`;
  * the `remote_htlcpubkey` uses the remote node's `htlc_basepoint`;
  * the `local_delayedpubkey` uses the local node's `delayed_payment_basepoint`;
  * and the `remote_delayedpubkey` uses the remote node's `delayed_payment_basepoint`.
+ *...
+ * If `option_static_remotekey` is negotiated the `remotepubkey` is simply the
+ * remote node's `payment_basepoint`, otherwise it is calculated as above using
+ * the remote node's `payment_basepoint`.
  */
 bool derive_simple_key(const struct pubkey *basepoint,
 		    const struct pubkey *per_commitment_point,

common/keyset.c

@@ -8,7 +8,7 @@ bool derive_keyset(const struct pubkey *per_commitment_point,
 		   bool option_static_remotekey,
 		   struct keyset *keyset)
 {
-        /* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
+        /* BOLT #3:
 	 *
 	 * ### `localpubkey`, `local_htlcpubkey`, `remote_htlcpubkey`, `local_delayedpubkey`, and `remote_delayedpubkey` Derivation
 	 *
@@ -27,7 +27,7 @@ bool derive_keyset(const struct pubkey *per_commitment_point,
 			       &keyset->self_payment_key))
 		return false;
 
-	/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
+	/* BOLT #3:
 	 *
 	 * ### `remotepubkey` Derivation
 	 *

hsmd/hsmd.c

@@ -1385,7 +1385,7 @@ static void hsm_unilateral_close_privkey(struct privkey *dst,
 	get_channel_seed(&info->peer_id, info->channel_id, &channel_seed);
 	derive_basepoints(&channel_seed, NULL, &basepoints, &secrets, NULL);
 
-	/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
+	/* BOLT #3:
 	 *
 	 * If `option_static_remotekey` is negotiated the `remotepubkey`
 	 * is simply the remote node's `payment_basepoint`, otherwise it is

lightningd/channel_control.c

@@ -391,9 +391,6 @@ void peer_start_channeld(struct channel *channel,
 	num_revocations = revocations_received(&channel->their_shachain.chain);
 
 	/* BOLT #2:
-	 *
- 	 *   - if it supports `option_data_loss_protect`:
-	 *...
 	 *     - if `next_revocation_number` equals 0:
 	 *       - MUST set `your_last_per_commitment_secret` to all zeroes
 	 *     - otherwise:

lightningd/closing_control.c

@@ -245,9 +245,6 @@ void peer_start_closingd(struct channel *channel,
 	}
 
 	/* BOLT #2:
-	 *
-	 *   - if it supports `option_data_loss_protect`:
-	 *...
 	 *     - if `next_revocation_number` equals 0:
 	 *       - MUST set `your_last_per_commitment_secret` to all zeroes
 	 *     - otherwise:

lightningd/opening_control.c

@@ -198,7 +198,7 @@ wallet_commit_channel(struct lightningd *ld,
 	/* old_remote_per_commit not valid yet, copy valid one. */
 	channel_info->old_remote_per_commit = channel_info->remote_per_commit;
 
-	/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
+	/* BOLT #2:
 	 * 1. type: 35 (`funding_signed`)
 	 * 2. data:
 	 *     * [`channel_id`:`channel_id`]

onchaind/onchaind.c

@@ -2485,7 +2485,7 @@ static void handle_unknown_commitment(const struct bitcoin_tx *tx,
 		local_script = scriptpubkey_p2wpkh(tmpctx,
 						   &ks->other_payment_key);
 	} else {
-		/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
+		/* BOLT #3:
 		 *
 		 * ### `remotepubkey` Derivation
 		 *

tests/test_connection.py

@@ -3,7 +3,7 @@ from decimal import Decimal
 from fixtures import *  # noqa: F401,F403
 from flaky import flaky  # noqa: F401
 from lightning import RpcError
-from utils import DEVELOPER, only_one, wait_for, sync_blockheight, VALGRIND, TIMEOUT, SLOW_MACHINE, EXPERIMENTAL_FEATURES
+from utils import DEVELOPER, only_one, wait_for, sync_blockheight, VALGRIND, TIMEOUT, SLOW_MACHINE
 from bitcoin.core import CMutableTransaction, CMutableTxOut
 
 import binascii
@@ -1382,8 +1382,6 @@ def test_forget_channel(node_factory):
 
 def test_peerinfo(node_factory, bitcoind):
     l1, l2 = node_factory.line_graph(2, fundchannel=False, opts={'may_reconnect': True})
-    lfeatures = '08a2'
-    if EXPERIMENTAL_FEATURES:
     lfeatures = '28a2'
     # Gossiping but no node announcement yet
     assert l1.rpc.getpeer(l2.info['id'])['connected']
@@ -1636,12 +1634,8 @@ def test_dataloss_protection(node_factory, bitcoind):
     l2 = node_factory.get_node(may_reconnect=True, log_all_io=True,
                                feerates=(7500, 7500, 7500), allow_broken_log=True)
 
-    if EXPERIMENTAL_FEATURES:
     # features 1, 3, 7, 11 and 13 (0x28a2).
     lf = "28a2"
-    else:
-        # features 1, 3, 7 and 11 (0x08a2).
-        lf = "08a2"
     l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
     # l1 should send out WIRE_INIT (0010)
     l1.daemon.wait_for_log(r"\[OUT\] 0010"

tests/test_misc.py

@@ -3,7 +3,7 @@ from fixtures import *  # noqa: F401,F403
 from flaky import flaky  # noqa: F401
 from lightning import RpcError
 from threading import Event
-from utils import DEVELOPER, TIMEOUT, VALGRIND, sync_blockheight, only_one, wait_for, TailableProc, EXPERIMENTAL_FEATURES
+from utils import DEVELOPER, TIMEOUT, VALGRIND, sync_blockheight, only_one, wait_for, TailableProc
 from ephemeral_port_reserve import reserve
 
 import json
@@ -1446,7 +1446,6 @@ def test_list_features_only(node_factory):
     expected = ['option_data_loss_protect/odd',
                 'option_upfront_shutdown_script/odd',
                 'option_gossip_queries/odd',
-                'option_gossip_queries_ex/odd']
-    if EXPERIMENTAL_FEATURES:
-        expected += ['option_static_remotekey/odd']
+                'option_gossip_queries_ex/odd',
+                'option_static_remotekey/odd']
     assert features == expected

wire/extracted_peer_experimental_legacy

@@ -1,12 +0,0 @@
---- wire/extracted_peer_wire_csv	2019-08-01 11:33:48.136457293 +0930
-+++ -	2019-08-01 11:40:21.313665504 +0930
-@@ -108,7 +108,7 @@
- msgdata,channel_reestablish,channel_id,channel_id,
- msgdata,channel_reestablish,next_commitment_number,u64,
- msgdata,channel_reestablish,next_revocation_number,u64,
--msgdata,channel_reestablish,your_last_per_commitment_secret,byte,32,option_data_loss_protect
-+msgdata,channel_reestablish,your_last_per_commitment_secret,byte,32,option_data_loss_protect,option_static_remotekey
--msgdata,channel_reestablish,my_current_per_commitment_point,point,,option_data_loss_protect
-+msgdata,channel_reestablish,my_current_per_commitment_point,point,,option_data_loss_protect,option_static_remotekey
- msgtype,announcement_signatures,259
- msgdata,announcement_signatures,channel_id,channel_id,

wire/extracted_peer_wire_csv

@@ -122,8 +122,8 @@ msgtype,channel_reestablish,136
 msgdata,channel_reestablish,channel_id,channel_id,
 msgdata,channel_reestablish,next_commitment_number,u64,
 msgdata,channel_reestablish,next_revocation_number,u64,
-msgdata,channel_reestablish,your_last_per_commitment_secret,byte,32,option_data_loss_protect
-msgdata,channel_reestablish,my_current_per_commitment_point,point,,option_data_loss_protect
+msgdata,channel_reestablish,your_last_per_commitment_secret,byte,32,option_data_loss_protect,option_static_remotekey
+msgdata,channel_reestablish,my_current_per_commitment_point,point,,option_data_loss_protect,option_static_remotekey
 msgtype,announcement_signatures,259
 msgdata,announcement_signatures,channel_id,channel_id,
 msgdata,announcement_signatures,short_channel_id,short_channel_id,