lightning/hsmd/hsm_wire.csv

# Clients should not give a bad request but not the HSM's decision to crash.
msgtype,hsmstatus_client_bad_request,1000
msgdata,hsmstatus_client_bad_request,id,node_id,
msgdata,hsmstatus_client_bad_request,description,wirestring,
msgdata,hsmstatus_client_bad_request,len,u16,
msgdata,hsmstatus_client_bad_request,msg,u8,len

#include <bitcoin/chainparams.h>
# Start the HSM.
msgtype,hsm_init,11
msgdata,hsm_init,bip32_key_version,bip32_key_version,
msgdata,hsm_init,chainparams,chainparams,
msgdata,hsm_init,hsm_encryption_key,?secret,
msgdata,hsm_init,dev_force_privkey,?privkey,
msgdata,hsm_init,dev_force_bip32_seed,?secret,
msgdata,hsm_init,dev_force_channel_secrets,?secrets,
msgdata,hsm_init,dev_force_channel_secrets_shaseed,?sha256,

#include <common/bip32.h>
msgtype,hsm_init_reply,111
msgdata,hsm_init_reply,node_id,node_id,
msgdata,hsm_init_reply,bip32,ext_key,

# Get a new HSM FD, with the specified capabilities
msgtype,hsm_client_hsmfd,9
# Which identity to use for requests
msgdata,hsm_client_hsmfd,id,node_id,
# Database id for this client, if any.
msgdata,hsm_client_hsmfd,dbid,u64,
msgdata,hsm_client_hsmfd,capabilities,u64,

# No content, just an fd.
msgtype,hsm_client_hsmfd_reply,109

#include <common/derive_basepoints.h>
# Get the basepoints and funding key for this specific channel.
msgtype,hsm_get_channel_basepoints,10
msgdata,hsm_get_channel_basepoints,peerid,node_id,
msgdata,hsm_get_channel_basepoints,dbid,u64,

msgtype,hsm_get_channel_basepoints_reply,110
msgdata,hsm_get_channel_basepoints_reply,basepoints,basepoints,
msgdata,hsm_get_channel_basepoints_reply,funding_pubkey,pubkey,

# Return signature for a funding tx.
#include <common/utxo.h>

# Master asks the HSM to sign a node_announcement
msgtype,hsm_node_announcement_sig_req,6
msgdata,hsm_node_announcement_sig_req,annlen,u16,
msgdata,hsm_node_announcement_sig_req,announcement,u8,annlen

msgtype,hsm_node_announcement_sig_reply,106
msgdata,hsm_node_announcement_sig_reply,signature,secp256k1_ecdsa_signature,

# Sign a withdrawal request
#include <bitcoin/psbt.h>
msgtype,hsm_sign_withdrawal,7
msgdata,hsm_sign_withdrawal,num_inputs,u16,
msgdata,hsm_sign_withdrawal,inputs,utxo,num_inputs
msgdata,hsm_sign_withdrawal,psbt,wally_psbt,

msgtype,hsm_sign_withdrawal_reply,107
msgdata,hsm_sign_withdrawal_reply,psbt,wally_psbt,

# Sign an invoice
msgtype,hsm_sign_invoice,8
msgdata,hsm_sign_invoice,len,u16,
msgdata,hsm_sign_invoice,u5bytes,u8,len
msgdata,hsm_sign_invoice,hrplen,u16,
msgdata,hsm_sign_invoice,hrp,u8,hrplen

msgtype,hsm_sign_invoice_reply,108
msgdata,hsm_sign_invoice_reply,sig,secp256k1_ecdsa_recoverable_signature,

# Give me ECDH(node-id-secret,point)
msgtype,hsm_ecdh_req,1
msgdata,hsm_ecdh_req,point,pubkey,
msgtype,hsm_ecdh_resp,100
msgdata,hsm_ecdh_resp,ss,secret,

msgtype,hsm_cannouncement_sig_req,2
msgdata,hsm_cannouncement_sig_req,calen,u16,
msgdata,hsm_cannouncement_sig_req,ca,u8,calen

msgtype,hsm_cannouncement_sig_reply,102
msgdata,hsm_cannouncement_sig_reply,node_signature,secp256k1_ecdsa_signature,
msgdata,hsm_cannouncement_sig_reply,bitcoin_signature,secp256k1_ecdsa_signature,

msgtype,hsm_cupdate_sig_req,3
msgdata,hsm_cupdate_sig_req,culen,u16,
msgdata,hsm_cupdate_sig_req,cu,u8,culen

msgtype,hsm_cupdate_sig_reply,103
msgdata,hsm_cupdate_sig_reply,culen,u16,
msgdata,hsm_cupdate_sig_reply,cu,u8,culen

# Master asks HSM to sign a commitment transaction.
msgtype,hsm_sign_commitment_tx,5
msgdata,hsm_sign_commitment_tx,peer_id,node_id,
msgdata,hsm_sign_commitment_tx,channel_dbid,u64,
msgdata,hsm_sign_commitment_tx,tx,bitcoin_tx,
msgdata,hsm_sign_commitment_tx,remote_funding_key,pubkey,

msgtype,hsm_sign_commitment_tx_reply,105
msgdata,hsm_sign_commitment_tx_reply,sig,bitcoin_signature,

# Onchaind asks HSM to sign a spend to-us.  Four variants, since each set
# of keys is derived differently...
# FIXME: Have master tell hsmd the keyindex, so it can validate output!
msgtype,hsm_sign_delayed_payment_to_us,12
msgdata,hsm_sign_delayed_payment_to_us,commit_num,u64,
msgdata,hsm_sign_delayed_payment_to_us,tx,bitcoin_tx,
msgdata,hsm_sign_delayed_payment_to_us,wscript_len,u16,
msgdata,hsm_sign_delayed_payment_to_us,wscript,u8,wscript_len

msgtype,hsm_sign_remote_htlc_to_us,13
msgdata,hsm_sign_remote_htlc_to_us,remote_per_commitment_point,pubkey,
msgdata,hsm_sign_remote_htlc_to_us,tx,bitcoin_tx,
msgdata,hsm_sign_remote_htlc_to_us,wscript_len,u16,
msgdata,hsm_sign_remote_htlc_to_us,wscript,u8,wscript_len

msgtype,hsm_sign_penalty_to_us,14
msgdata,hsm_sign_penalty_to_us,revocation_secret,secret,
msgdata,hsm_sign_penalty_to_us,tx,bitcoin_tx,
msgdata,hsm_sign_penalty_to_us,wscript_len,u16,
msgdata,hsm_sign_penalty_to_us,wscript,u8,wscript_len

# Onchaind asks HSM to sign a local HTLC success or HTLC timeout tx.
msgtype,hsm_sign_local_htlc_tx,16
msgdata,hsm_sign_local_htlc_tx,commit_num,u64,
msgdata,hsm_sign_local_htlc_tx,tx,bitcoin_tx,
msgdata,hsm_sign_local_htlc_tx,wscript_len,u16,
msgdata,hsm_sign_local_htlc_tx,wscript,u8,wscript_len

# Openingd/channeld asks HSM to sign the other sides' commitment tx.
msgtype,hsm_sign_remote_commitment_tx,19
msgdata,hsm_sign_remote_commitment_tx,tx,bitcoin_tx,
msgdata,hsm_sign_remote_commitment_tx,remote_funding_key,pubkey,
msgdata,hsm_sign_remote_commitment_tx,remote_per_commit,pubkey,
msgdata,hsm_sign_remote_commitment_tx,option_static_remotekey,bool,

# channeld asks HSM to sign remote HTLC tx.
msgtype,hsm_sign_remote_htlc_tx,20
msgdata,hsm_sign_remote_htlc_tx,tx,bitcoin_tx,
msgdata,hsm_sign_remote_htlc_tx,len,u16,
msgdata,hsm_sign_remote_htlc_tx,wscript,u8,len
msgdata,hsm_sign_remote_htlc_tx,remote_per_commit_point,pubkey,

# closingd asks HSM to sign mutual close tx.
msgtype,hsm_sign_mutual_close_tx,21
msgdata,hsm_sign_mutual_close_tx,tx,bitcoin_tx,
msgdata,hsm_sign_mutual_close_tx,remote_funding_key,pubkey,

# Reply for all the above requests.
msgtype,hsm_sign_tx_reply,112
msgdata,hsm_sign_tx_reply,sig,bitcoin_signature,

# Openingd/channeld/onchaind asks for Nth per_commitment_point, if > 2, gets N-2 secret.
msgtype,hsm_get_per_commitment_point,18
msgdata,hsm_get_per_commitment_point,n,u64,

msgtype,hsm_get_per_commitment_point_reply,118
msgdata,hsm_get_per_commitment_point_reply,per_commitment_point,pubkey,
msgdata,hsm_get_per_commitment_point_reply,old_commitment_secret,?secret,

# master -> hsmd: do you have a memleak?
msgtype,hsm_dev_memleak,33

msgtype,hsm_dev_memleak_reply,133
msgdata,hsm_dev_memleak_reply,leak,bool,

# channeld asks to check if claimed future commitment_secret is correct.
msgtype,hsm_check_future_secret,22
msgdata,hsm_check_future_secret,n,u64,
msgdata,hsm_check_future_secret,commitment_secret,secret,

msgtype,hsm_check_future_secret_reply,122
msgdata,hsm_check_future_secret_reply,correct,bool,

# lightningd asks us to sign a string.
msgtype,hsm_sign_message,23
msgdata,hsm_sign_message,len,u16,
msgdata,hsm_sign_message,msg,u8,len

msgtype,hsm_sign_message_reply,123
msgdata,hsm_sign_message_reply,sig,secp256k1_ecdsa_recoverable_signature,