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openingd: add bolt quote about reserve calculation.

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Suggested-by: @niftynei
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2020-08-14 11:00:42 +09:30
parent cbd0be5c0e
commit f495363bc4
1 changed files with 7 additions and 2 deletions
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9
openingd/openingd.c
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@ -244,8 +244,13 @@ static bool check_config_bounds(struct state *state,
return false;
}
/* If they're opener, they must pay for anchor outputs, so include
* that in "reserve". */
/* BOLT-a12da24dd0102c170365124782b46d9710950ac1 #2:
* - if `option_anchor_outputs` applies to this commitment
* transaction and the sending node is the funder:
* - MUST be able to additionally pay for `to_local_anchor` and
* `to_remote_anchor` above its reserve.
*/
/* (We simply include in "reserve" here if they opened). */
if (state->option_anchor_outputs
&& !am_opener
&& !amount_sat_add(&reserve, reserve, AMOUNT_SAT(660))) {