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option_static_remotekey: update to latest draft.

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531c8d7d9b

In this one, we always send my_current_per_commitment_point, though it's
ignored.  And we have our official feature numbers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2019-09-10 12:58:12 +09:30 committed by neil saitug
parent e467e6a5c6
commit 226e2aee48
10 changed files with 42 additions and 35 deletions
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31
channeld/channeld.c
View File

@ -2013,7 +2013,7 @@ static void resend_commitment(struct peer *peer, const struct changed_htlc *last
peer->revocations_received);
}
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #2:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
*
* A receiving node:
* - if `option_static_remotekey` applies to the commitment transaction:
@ -2076,7 +2076,7 @@ static void check_future_dataloss_fields(struct peer *peer,
peer_failed(peer->pps, &peer->channel_id, "Awaiting unilateral close");
}
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #2:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
*
* A receiving node:
* - if `option_static_remotekey` applies to the commitment transaction:
@ -2238,7 +2238,7 @@ static void peer_reconnect(struct peer *peer,
get_per_commitment_point(peer->next_index[LOCAL] - 1,
&my_current_per_commitment_point, NULL);
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #2:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
*
* - upon reconnection:
* - if a channel is in an error state:
@ -2254,12 +2254,17 @@ static void peer_reconnect(struct peer *peer,
* of the next `commitment_signed` it expects to receive.
* - MUST set `next_revocation_number` to the commitment number
* of the next `revoke_and_ack` message it expects to receive.
* - if it supports `option_data_loss_protect` or `option_static_remotekey`:
* - MUST set `my_current_per_commitment_point` to its commitment
* point for the last signed commitment it received from its
* channel peer (i.e. the commitment_point corresponding to the
* commitment transaction the sender would use to unilaterally
* close).
* - if `option_static_remotekey` applies to the commitment transaction:
* - MUST set `my_current_per_commitment_point` to a valid point.
* - otherwise, if it supports `option_data_loss_protect`:
* - MUST set `my_current_per_commitment_point` to its commitment
* point for the last signed commitment it received from its
* channel peer (i.e. the commitment_point corresponding to the
* commitment transaction the sender would use to unilaterally
* close).
* - if `option_static_remotekey` applies to the commitment
* transaction, or the sending node supports
* `option_data_loss_protect`:
* - if `next_revocation_number` equals 0:
* - MUST set `your_last_per_commitment_secret` to all zeroes
* - otherwise:
@ -2272,7 +2277,9 @@ static void peer_reconnect(struct peer *peer,
(NULL, &peer->channel_id,
peer->next_index[LOCAL],
peer->revocations_received,
last_remote_per_commit_secret);
last_remote_per_commit_secret,
/* Can send any (valid) point here */
&peer->remote_per_commit);
} else
#endif /* EXPERIMENTAL_FEATURES */
if (dataloss_protect) {
@ -2304,11 +2311,13 @@ static void peer_reconnect(struct peer *peer,
#if EXPERIMENTAL_FEATURES
if (peer->channel->option_static_remotekey) {
struct pubkey ignore;
if (!fromwire_channel_reestablish_option_static_remotekey(msg,
&channel_id,
&next_commitment_number,
&next_revocation_number,
&last_local_per_commitment_secret)) {
&last_local_per_commitment_secret,
&ignore)) {
peer_failed(peer->pps,
&peer->channel_id,
"bad reestablish static_remotekey msg: %s %s",

3
common/features.c
View File

@ -161,7 +161,8 @@ static const char *feature_name(const tal_t *ctx, size_t f)
"option_upfront_shutdown_script",
"option_gossip_queries",
"option_var_onion_optin",
"option_gossip_queries_ex" };
"option_gossip_queries_ex",
"option_static_remotekey" };
assert(f / 2 < ARRAY_SIZE(fnames));
return tal_fmt(ctx, "%s/%s",

8
common/features.h
View File

@ -25,7 +25,7 @@ const char **list_supported_features(const tal_t *ctx);
bool feature_is_set(const u8 *features, size_t bit);
void set_feature_bit(u8 **ptr, u32 bit);
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #9:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #9:
*
* Flags are numbered from the least-significant bit, at bit 0 (i.e. 0x1,
* an _even_ bit). They are generally assigned in pairs so that features
@ -36,7 +36,7 @@ void set_feature_bit(u8 **ptr, u32 bit);
#define COMPULSORY_FEATURE(x) ((x) & 0xFFFFFFFE)
#define OPTIONAL_FEATURE(x) ((x) | 1)
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #9:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #9:
*
* ## Assigned `localfeatures` flags
*...
@ -45,13 +45,13 @@ void set_feature_bit(u8 **ptr, u32 bit);
* | 3 | `initial_routing_sync` |...
* | 4/5 | `option_upfront_shutdown_script` |...
* | 6/7 | `gossip_queries` |...
* | 48/49| `option_static_remotekey` |...
* | 12/13| `option_static_remotekey` |...
*/
#define LOCAL_DATA_LOSS_PROTECT 0
#define LOCAL_INITIAL_ROUTING_SYNC 2
#define LOCAL_UPFRONT_SHUTDOWN_SCRIPT 4
#define LOCAL_GOSSIP_QUERIES 6
#define LOCAL_STATIC_REMOTEKEY 48
#define LOCAL_STATIC_REMOTEKEY 12
/* BOLT-927c96daab2338b716708a57cd75c84a2d169e0e #9:
* | Bits | Name |...

4
common/keyset.c
View File

@ -8,7 +8,7 @@ bool derive_keyset(const struct pubkey *per_commitment_point,
bool option_static_remotekey,
struct keyset *keyset)
{
/* BOLT-930a9b44076a8f25a8626b31b3d5a55c0888308c #3:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #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-930a9b44076a8f25a8626b31b3d5a55c0888308c #3:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
*
* ### `remotepubkey` Derivation
*

2
hsmd/hsmd.c
View File

@ -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-930a9b44076a8f25a8626b31b3d5a55c0888308c #3:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
*
* If `option_static_remotekey` is negotiated the `remotepubkey`
* is simply the remote node's `payment_basepoint`, otherwise it is

2
lightningd/opening_control.c
View File

@ -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-930a9b44076a8f25a8626b31b3d5a55c0888308c #2:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #2:
* 1. type: 35 (`funding_signed`)
* 2. data:
* * [`channel_id`:`channel_id`]

2
onchaind/onchaind.c
View File

@ -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-930a9b44076a8f25a8626b31b3d5a55c0888308c #3:
/* BOLT-531c8d7d9b01ab610b8a73a0deba1b9e9c83e1ed #3:
*
* ### `remotepubkey` Derivation
*

19
tests/test_connection.py
View File

@ -1345,7 +1345,7 @@ def test_peerinfo(node_factory, bitcoind):
l1, l2 = node_factory.line_graph(2, fundchannel=False, opts={'may_reconnect': True})
lfeatures = 'aa'
if EXPERIMENTAL_FEATURES:
lfeatures = '020000000008aa'
lfeatures = '28aa'
# Gossiping but no node announcement yet
assert l1.rpc.getpeer(l2.info['id'])['connected']
assert len(l1.rpc.getpeer(l2.info['id'])['channels']) == 0
@ -1596,8 +1596,8 @@ def test_dataloss_protection(node_factory, bitcoind):
feerates=(7500, 7500, 7500), allow_broken_log=True)
if EXPERIMENTAL_FEATURES:
# features 1, 3, 5, 7, 11 and 49 (0x020000000008aa).
lf = "020000000008aa"
# features 1, 3, 5, 7, 11 and 13 (0x28aa).
lf = "28aa"
else:
# features 1, 3, 5 and 7 (0xaa).
lf = "aa"
@ -1618,11 +1618,6 @@ def test_dataloss_protection(node_factory, bitcoind):
orig_db = open(dbpath, "rb").read()
l2.start()
if EXPERIMENTAL_FEATURES:
# No my_current_per_commitment_point with option_static_remotekey
my_current_per_commitment_point_regex = ""
else:
my_current_per_commitment_point_regex = "0[23][0-9a-f]{64}"
# l1 should have sent WIRE_CHANNEL_REESTABLISH with extra fields.
l1.daemon.wait_for_log(r"\[OUT\] 0088"
# channel_id
@ -1635,8 +1630,8 @@ def test_dataloss_protection(node_factory, bitcoind):
# trigger a fee-update and commit, hence this may not
# be zero)
"[0-9a-f]{64}"
# my_current_per_commitment_point (maybe)
+ my_current_per_commitment_point_regex + "'$")
# my_current_per_commitment_point
"0[23][0-9a-f]{64}'$")
# After an htlc, we should get different results (two more commits)
l1.pay(l2, 200000000)
@ -1658,8 +1653,8 @@ def test_dataloss_protection(node_factory, bitcoind):
"000000000000000[1-9]"
# your_last_per_commitment_secret
"[0-9a-f]{64}"
# my_current_per_commitment_point (maybe)
+ my_current_per_commitment_point_regex + "'$")
# my_current_per_commitment_point
"0[23][0-9a-f]{64}'$")
# Now, move l2 back in time.
l2.stop()

3
tests/test_misc.py
View File

@ -1445,5 +1445,6 @@ def test_list_features_only(node_factory):
'option_upfront_shutdown_script/odd',
'option_gossip_queries/odd']
if EXPERIMENTAL_FEATURES:
expected.append('option_gossip_queries_ex/odd')
expected += ['option_gossip_queries_ex/odd',
'option_static_remotekey/odd']
assert features == expected

3
wire/extracted_peer_experimental_csv
View File

@ -6,7 +6,8 @@
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
+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,
@@ -154,6 +168,11 @@