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15f8e1e63c
"BOLT 4: Remove legacy format, make var_onion_optin compulsory." This also renamed the redundant "tlv_payload" to "payload", so we replace "tlv_tlv_payload" with "tlv_payload" everyhere! Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
#ifndef LIGHTNING_COMMON_ONION_ENCODE_H
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#define LIGHTNING_COMMON_ONION_ENCODE_H
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#include "config.h"
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#include <bitcoin/privkey.h>
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#include <common/amount.h>
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struct route_step;
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struct tlv_encrypted_data_tlv_payment_relay;
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enum onion_payload_type {
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ONION_V0_PAYLOAD = 0,
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ONION_TLV_PAYLOAD = 1,
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};
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struct onion_payload {
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enum onion_payload_type type;
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/* Is this the final hop? */
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bool final;
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struct amount_msat amt_to_forward;
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u32 outgoing_cltv;
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struct amount_msat *total_msat;
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/* One of these is set */
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struct short_channel_id *forward_channel;
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struct pubkey *forward_node_id;
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struct secret *payment_secret;
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u8 *payment_metadata;
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/* If blinding is set, blinding_ss is the shared secret.*/
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struct pubkey *blinding;
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struct secret blinding_ss;
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/* The raw TLVs contained in the payload. */
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struct tlv_payload *tlv;
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};
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u8 *onion_nonfinal_hop(const tal_t *ctx,
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const struct short_channel_id *scid,
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struct amount_msat forward,
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u32 outgoing_cltv);
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/* Note that this can fail if we supply payment_secret or payment_metadata and !use_tlv! */
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u8 *onion_final_hop(const tal_t *ctx,
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struct amount_msat forward,
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u32 outgoing_cltv,
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struct amount_msat total_msat,
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const struct secret *payment_secret,
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const u8 *payment_metadata);
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/* Blinding has more complex rules on what fields are encoded: this is the
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* generic interface, as used by blindedpay.h */
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u8 *onion_blinded_hop(const tal_t *ctx,
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const struct amount_msat *amt_to_forward,
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const struct amount_msat *total_amount_msat,
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const u32 *outgoing_cltv_value,
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const u8 *enctlv,
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const struct pubkey *blinding)
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NON_NULL_ARGS(5);
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#endif /* LIGHTNING_COMMON_ONION_ENCODE_H */
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