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hooks: Add the raw payload to the htlc_accepted call

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Since we might soon be changing the payload it is a good idea to not just
expose the v0 payload, but also the raw payload for the plugin to
interpret. This might also include payloads that `lightningd` itself cannot
understand, but the plugin might.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
Suggested-by: Corné Plooy <@bitonic-cjp>
This commit is contained in:
Christian Decker 2019-02-21 14:39:50 +01:00 committed by Rusty Russell
parent 1561ffaea0
commit adb984dd45
3 changed files with 4 additions and 0 deletions
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2
common/sphinx.c
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@ -434,6 +434,8 @@ struct route_step *process_onionpacket(
deserialize_hop_data(&step->hop_data, paddedheader);
memcpy(&step->next->mac, step->hop_data.hmac, SECURITY_PARAMETER);
step->raw_payload = tal_dup_arr(step, u8, paddedheader + 1,
HOP_DATA_SIZE - 1 - HMAC_SIZE, 0);
memcpy(&step->next->routinginfo, paddedheader + HOP_DATA_SIZE, ROUTING_INFO_SIZE);

1
common/sphinx.h
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@ -77,6 +77,7 @@ struct route_step {
enum route_next_case nextcase;
struct onionpacket *next;
struct hop_data hop_data;
u8 *raw_payload;
};
/**

1
lightningd/peer_htlcs.c
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@ -718,6 +718,7 @@ static void htlc_accepted_hook_serialize(struct htlc_accepted_hook_payload *p,
s32 expiry = hin->cltv_expiry, blockheight = p->ld->topology->tip->height;
json_object_start(s, "onion");
json_add_hex_talarr (s, "payload", rs->raw_payload);
if (rs->hop_data.realm == 0x00) {
json_object_start(s, "per_hop_v0");
json_add_hex(s, "realm", &rs->hop_data.realm, 1);