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channeld: Code to implement splicing

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Update the lightningd <-> channeld interface with lots of new commands to needed to facilitate spicing.

Implement the channeld splicing protocol leveraging the interactivetx protocol.

Implement lightningd’s channel_control to support channeld in its splicing efforts.

Changelog-Added: Added the features to enable splicing & resizing of active channels.
This commit is contained in:
Dusty Daemon
2023-07-27 14:37:52 -07:00
committed by Rusty Russell
parent ebd0a3fd69
commit 4628e3ace8
88 changed files with 4560 additions and 644 deletions
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6
lightningd/hsm_control.c
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@@ -166,6 +166,12 @@ struct ext_key *hsm_init(struct lightningd *ld)
fatal("--experimental-anchors needs HSM capable of signing anchors!");
}
if (feature_offered(ld->our_features->bits[INIT_FEATURE],
WIRE_HSMD_SIGN_SPLICE_TX)
&& !hsm_capable(ld, WIRE_HSMD_SIGN_SPLICE_TX)) {
fatal("--experimental-splicing needs HSM capable of signing splices!");
}
/* This is equivalent to makesecret("bolt12-invoice-base") */
msg = towire_hsmd_derive_secret(NULL, tal_dup_arr(tmpctx, u8,
(const u8 *)INVOICE_PATH_BASE_STRING,