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daemon: fail connection if preimage isn't valid for shachain.

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This means they generated it wrong.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2016-06-25 14:20:15 +09:30
parent 6bbd05c001
commit 3928cbe30e
1 changed files with 2 additions and 1 deletions
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3
daemon/packets.c
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@ -819,7 +819,8 @@ Pkt *accept_pkt_revocation(struct peer *peer, const Pkt *pkt)
proto_to_sha256(r->revocation_preimage, ci->revocation_preimage);
// save revocation preimages in shachain
shachain_add_hash(&peer->their_preimages, 0xFFFFFFFFFFFFFFFFL - ci->commit_num, ci->revocation_preimage);
if (!shachain_add_hash(&peer->their_preimages, 0xFFFFFFFFFFFFFFFFL - ci->commit_num, ci->revocation_preimage))
return pkt_err(peer, "preimage not next in shachain");
/* Save next revocation hash. */
proto_to_sha256(r->next_revocation_hash,