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#ifndef LIGHTNING_WALLET_WALLET_H
#define LIGHTNING_WALLET_WALLET_H
#include "config.h"
#include "db.h"
#include <bitcoin/chainparams.h>
#include <bitcoin/tx.h>
#include <ccan/build_assert/build_assert.h>
#include <ccan/crypto/shachain/shachain.h>
#include <ccan/list/list.h>
#include <ccan/tal/tal.h>
#include <common/channel_config.h>
#include <common/utxo.h>
#include <lightningd/chaintopology.h>
#include <lightningd/htlc_end.h>
#include <lightningd/invoice.h>
#include <lightningd/log.h>
#include <onchaind/onchain_wire.h>
#include <wally_bip32.h>
enum onion_type;
struct amount_msat;
struct invoices;
struct channel;
struct lightningd;
struct oneshot;
struct peer;
struct pubkey;
struct timers;
struct wallet {
struct lightningd *ld;
struct db *db;
struct log *log;
struct ext_key *bip32_base;
struct invoices *invoices;
struct list_head unstored_payments;
u64 max_channel_dbid;
/* Filter matching all outpoints corresponding to our owned outputs,
* including all spent ones */
struct outpointfilter *owned_outpoints;
/* Filter matching all outpoints that might be a funding transaction on
* the blockchain. This is currently all P2WSH outputs */
struct outpointfilter *utxoset_outpoints;
};
/* Possible states for tracked outputs in the database. Not sure yet
* whether we really want to have reservations reflected in the
* database, it would simplify queries at the cost of some IO ops */
/* /!\ This is a DB ENUM, please do not change the numbering of any
* already defined elements (adding is ok) /!\ */
enum output_status {
output_state_available= 0,
output_state_reserved = 1,
output_state_spent = 2,
/* Special status used to express that we don't care in
* queries */
output_state_any = 255
};
static inline enum output_status output_status_in_db(enum output_status s)
{
switch (s) {
case output_state_available:
BUILD_ASSERT(output_state_available == 0);
return s;
case output_state_reserved:
BUILD_ASSERT(output_state_reserved == 1);
return s;
case output_state_spent:
BUILD_ASSERT(output_state_spent == 2);
return s;
/* This one doesn't go into db */
case output_state_any:
break;
}
fatal("%s: %u is invalid", __func__, s);
}
/* Enumeration of all known output types. These include all types that
* could ever end up on-chain and we may need to react upon. Notice
* that `to_local`, `htlc_offer`, and `htlc_recv` may need immediate
* action since they are encumbered with a CSV. */
/* /!\ This is a DB ENUM, please do not change the numbering of any
* already defined elements (adding is ok) /!\ */
enum wallet_output_type {
p2sh_wpkh = 0,
to_local = 1,
htlc_offer = 3,
htlc_recv = 4,
our_change = 5,
p2wpkh = 6
};
static inline enum wallet_output_type wallet_output_type_in_db(enum wallet_output_type w)
{
switch (w) {
case p2sh_wpkh:
BUILD_ASSERT(p2sh_wpkh == 0);
return w;
case to_local:
BUILD_ASSERT(to_local == 1);
return w;
case htlc_offer:
BUILD_ASSERT(htlc_offer == 3);
return w;
case htlc_recv:
BUILD_ASSERT(htlc_recv == 4);
return w;
case our_change:
BUILD_ASSERT(our_change == 5);
return w;
case p2wpkh:
BUILD_ASSERT(p2wpkh == 6);
return w;
}
fatal("%s: %u is invalid", __func__, w);
}
/**
* Possible states for forwards
*
*/
/* /!\ This is a DB ENUM, please do not change the numbering of any
* already defined elements (adding is ok) /!\ */
enum forward_status {
FORWARD_OFFERED = 0,
FORWARD_SETTLED = 1,
FORWARD_FAILED = 2
};
static inline enum forward_status wallet_forward_status_in_db(enum forward_status s)
{
switch (s) {
case FORWARD_OFFERED:
BUILD_ASSERT(FORWARD_OFFERED == 0);
return s;
case FORWARD_SETTLED:
BUILD_ASSERT(FORWARD_SETTLED == 1);
return s;
case FORWARD_FAILED:
BUILD_ASSERT(FORWARD_FAILED == 2);
return s;
}
fatal("%s: %u is invalid", __func__, s);
}
static inline const char* forward_status_name(enum forward_status status)
{
switch(status) {
case FORWARD_OFFERED:
return "offered";
case FORWARD_SETTLED:
return "settled";
case FORWARD_FAILED:
return "failed";
}
abort();
}
struct forwarding {
struct short_channel_id channel_in, channel_out;
struct amount_msat msat_in, msat_out, fee;
struct sha256_double *payment_hash;
enum forward_status status;
};
/* A database backed shachain struct. The datastructure is
* writethrough, reads are performed from an in-memory version, all
* writes are passed through to the DB. */
struct wallet_shachain {
u64 id;
struct shachain chain;
};
/* Possible states for a wallet_payment. Payments start in
* `PENDING`. Outgoing payments are set to `PAYMENT_COMPLETE` once we
* get the preimage matching the rhash, or to
* `PAYMENT_FAILED`. */
/* /!\ This is a DB ENUM, please do not change the numbering of any
* already defined elements (adding is ok but you should append the
* test case test_wallet_payment_status_enum() ) /!\ */
enum wallet_payment_status {
PAYMENT_PENDING = 0,
PAYMENT_COMPLETE = 1,
PAYMENT_FAILED = 2
};
static inline enum wallet_payment_status wallet_payment_status_in_db(enum wallet_payment_status w)
{
switch (w) {
case PAYMENT_PENDING:
BUILD_ASSERT(PAYMENT_PENDING == 0);
return w;
case PAYMENT_COMPLETE:
BUILD_ASSERT(PAYMENT_COMPLETE == 1);
return w;
case PAYMENT_FAILED:
BUILD_ASSERT(PAYMENT_FAILED == 2);
return w;
}
fatal("%s: %u is invalid", __func__, w);
}
/* Outgoing payments. A simple persisted representation
* of a payment we initiated. This can be used by
* a UI (alongside invoices) to display the balance history.
*/
struct wallet_payment {
/* If it's in unstored_payments */
struct list_node list;
u64 id;
u32 timestamp;
struct sha256 payment_hash;
enum wallet_payment_status status;
struct pubkey destination;
struct amount_msat msatoshi;
struct amount_msat msatoshi_sent;
/* If and only if PAYMENT_COMPLETE */
struct preimage *payment_preimage;
/* Needed for recovering from routing failures. */
struct secret *path_secrets;
struct pubkey *route_nodes;
struct short_channel_id *route_channels;
/* bolt11 string; NULL for old payments. */
const char *bolt11;
/* The label of the payment. Must support `tal_len` */
const char *label;
};
struct outpoint {
struct bitcoin_txid txid;
u32 blockheight;
u32 txindex;
u32 outnum;
struct amount_sat sat;
u8 *scriptpubkey;
u32 spendheight;
};
/* Statistics for a channel */
struct channel_stats {
u64 in_payments_offered, in_payments_fulfilled;
struct amount_msat in_msatoshi_offered, in_msatoshi_fulfilled;
u64 out_payments_offered, out_payments_fulfilled;
struct amount_msat out_msatoshi_offered, out_msatoshi_fulfilled;
};
struct channeltx {
u32 channel_id;
int type;
u32 blockheight;
struct bitcoin_txid txid;
struct bitcoin_tx *tx;
u32 input_num;
u32 depth;
};
/**
* wallet_new - Constructor for a new sqlite3 based wallet
*
* This is guaranteed to either return a valid wallet, or abort with
* `fatal` if it cannot be initialized.
*/
struct wallet *wallet_new(struct lightningd *ld,
struct log *log, struct timers *timers);
/**
* wallet_add_utxo - Register an UTXO which we (partially) own
*
* Add an UTXO to the set of outputs we care about.
*/
bool wallet_add_utxo(struct wallet *w, struct utxo *utxo,
enum wallet_output_type type);
/**
* wallet_confirm_tx - Confirm a tx which contains a UTXO.
*/
void wallet_confirm_tx(struct wallet *w,
const struct bitcoin_txid *txid,
const u32 confirmation_height);
/**
* wallet_update_output_status - Perform an output state transition
*
* Change the current status of an output we are tracking in the
* database. Returns true if the output exists with the @oldstatus and
* was successfully updated to @newstatus. May fail if either the
* output does not exist, or it does not have the expected
* @oldstatus. In case we don't care about the previous state use
* `output_state_any` as @oldstatus.
*/
bool wallet_update_output_status(struct wallet *w,
const struct bitcoin_txid *txid,
const u32 outnum, enum output_status oldstatus,
enum output_status newstatus);
/**
* wallet_get_utxos - Retrieve all utxos matching a given state
*
* Returns a `tal_arr` of `utxo` structs. Double indirection in order
* to be able to steal individual elements onto something else.
*/
struct utxo **wallet_get_utxos(const tal_t *ctx, struct wallet *w,
const enum output_status state);
/**
* wallet_get_unconfirmed_closeinfo_utxos - Retrieve any unconfirmed utxos w/ closeinfo
*
* Returns a `tal_arr` of `utxo` structs. Double indirection in order
* to be able to steal individual elements onto something else.
*/
struct utxo **wallet_get_unconfirmed_closeinfo_utxos(const tal_t *ctx,
struct wallet *w);
const struct utxo **wallet_select_coins(const tal_t *ctx, struct wallet *w,
struct amount_sat value,
const u32 feerate_per_kw,
size_t outscriptlen,
u32 maxheight,
struct amount_sat *fee_estimate,
struct amount_sat *change_satoshi);
const struct utxo **wallet_select_all(const tal_t *ctx, struct wallet *w,
const u32 feerate_per_kw,
size_t outscriptlen,
u32 maxheight,
struct amount_sat *sat,
struct amount_sat *fee_estimate);
/**
* wallet_confirm_utxos - Once we've spent a set of utxos, mark them confirmed.
*
* May be called once the transaction spending these UTXOs has been
* broadcast. If something fails use `tal_free(utxos)` instead to undo
* the reservation.
*/
void wallet_confirm_utxos(struct wallet *w, const struct utxo **utxos);
/**
* wallet_can_spend - Do we have the private key matching this scriptpubkey?
*
* FIXME: This is very slow with lots of inputs!
*
* @w: (in) allet holding the pubkeys to check against (privkeys are on HSM)
* @script: (in) the script to check
* @index: (out) the bip32 derivation index that matched the script
* @output_is_p2sh: (out) whether the script is a p2sh, or p2wpkh
*/
bool wallet_can_spend(struct wallet *w, const u8 *script,
u32 *index, bool *output_is_p2sh);
/**
* wallet_get_newindex - get a new index from the wallet.
* @ld: (in) lightning daemon
*
* Returns -1 on error (key exhaustion).
*/
s64 wallet_get_newindex(struct lightningd *ld);
/**
* wallet_shachain_add_hash -- wallet wrapper around shachain_add_hash
*/
bool wallet_shachain_add_hash(struct wallet *wallet,
struct wallet_shachain *chain,
uint64_t index,
const struct secret *hash);
/**
* wallet_shachain_load -- Load an existing shachain from the wallet.
*
* @wallet: the wallet to load from
* @id: the shachain id to load
* @chain: where to load the shachain into
*/
bool wallet_shachain_load(struct wallet *wallet, u64 id,
struct wallet_shachain *chain);
/**
* wallet_get_uncommitted_channel_dbid -- get a unique channel dbid
*
* @wallet: the wallet
*/
u64 wallet_get_channel_dbid(struct wallet *wallet);
/**
* wallet_channel_save -- Upsert the channel into the database
*
* @wallet: the wallet to save into
* @chan: the instance to store (not const so we can update the unique_id upon
* insert)
*/
void wallet_channel_save(struct wallet *w, struct channel *chan);
/**
* wallet_channel_insert -- Insert the initial channel into the database
*
* @wallet: the wallet to save into
* @chan: the instance to store
*/
void wallet_channel_insert(struct wallet *w, struct channel *chan);
/**
* wallet_channel_delete -- After resolving a channel, forget about it
*/
void wallet_channel_delete(struct wallet *w, u64 wallet_id);
/**
* wallet_peer_delete -- After no more channels in peer, forget about it
*/
void wallet_peer_delete(struct wallet *w, u64 peer_dbid);
/**
* wallet_channel_config_load -- Load channel_config from database into cc
*/
bool wallet_channel_config_load(struct wallet *w, const u64 id,
struct channel_config *cc);
/**
* wlalet_channels_load_active -- Load persisted active channels into the peers
*
* @ctx: context to allocate peers from
* @w: wallet to load from
*
* Be sure to call this only once on startup since it'll append peers
* loaded from the database to the list without checking.
*/
bool wallet_channels_load_active(const tal_t *ctx, struct wallet *w);
/**
* wallet_channel_stats_incr_* - Increase channel statistics.
*
* @w: wallet containing the channel
* @cdbid: channel database id
* @msatoshi: amount in msatoshi being transferred
*/
void wallet_channel_stats_incr_in_offered(struct wallet *w, u64 cdbid, struct amount_msat msatoshi);
void wallet_channel_stats_incr_in_fulfilled(struct wallet *w, u64 cdbid, struct amount_msat msatoshi);
void wallet_channel_stats_incr_out_offered(struct wallet *w, u64 cdbid, struct amount_msat msatoshi);
void wallet_channel_stats_incr_out_fulfilled(struct wallet *w, u64 cdbid, struct amount_msat msatoshi);
/**
* wallet_channel_stats_load - Load channel statistics
*
* @w: wallet containing the channel
* @cdbid: channel database id
* @stats: location to load statistics to
*/
void wallet_channel_stats_load(struct wallet *w, u64 cdbid, struct channel_stats *stats);
/**
* Retrieve the blockheight of the last block processed by lightningd.
*
* Will set min/max either the minimal/maximal blockheight or the default value
* if the wallet was never used before.
*
* @w: wallet to load from.
* @def: the default value to return if we've never used the wallet before
* @min(out): height of the first block we track
* @max(out): height of the last block we added
*/
void wallet_blocks_heights(struct wallet *w, u32 def, u32 *min, u32 *max);
/**
* wallet_extract_owned_outputs - given a tx, extract all of our outputs
*/
int wallet_extract_owned_outputs(struct wallet *w, const struct bitcoin_tx *tx,
const u32 *blockheight,
struct amount_sat *total);
/**
* wallet_htlc_save_in - store an htlc_in in the database
*
* @wallet: wallet to store the htlc into
* @chan: the channel this HTLC is associated with
* @in: the htlc_in to store
*
* This will store the contents of the `struct htlc_in` in the
* database. Since `struct htlc_in` commonly only change state after
* being created we do not support updating arbitrary fields and this
* function will fail when attempting to call it multiple times for
* the same `struct htlc_in`. Instead `wallet_htlc_update` may be used
* for state transitions or to set the `payment_key` for completed
* HTLCs.
*/
void wallet_htlc_save_in(struct wallet *wallet,
const struct channel *chan, struct htlc_in *in);
/**
* wallet_htlc_save_out - store an htlc_out in the database
*
* See comment for wallet_htlc_save_in.
*/
void wallet_htlc_save_out(struct wallet *wallet,
const struct channel *chan,
struct htlc_out *out);
/**
* wallet_htlc_update - perform state transition or add payment_key
*
* @wallet: the wallet containing the HTLC to update
* @htlc_dbid: the database ID used to identify the HTLC
* @new_state: the state we should transition to
* @payment_key: the `payment_key` which hashes to the `payment_hash`,
* or NULL if unknown.
* @failcode: the current failure code, or 0.
* @failuremsg: the current failure message (from peer), or NULL.
*
* Used to update the state of an HTLC, either a `struct htlc_in` or a
* `struct htlc_out` and optionally set the `payment_key` should the
* HTLC have been settled, or `failcode`/`failuremsg` if failed.
*/
void wallet_htlc_update(struct wallet *wallet, const u64 htlc_dbid,
const enum htlc_state new_state,
const struct preimage *payment_key,
enum onion_type failcode, const u8 *failuremsg);
/**
* wallet_htlcs_load_for_channel - Load HTLCs associated with chan from DB.
*
* @wallet: wallet to load from
* @chan: load HTLCs associated with this channel
* @htlcs_in: htlc_in_map to store loaded htlc_in in
* @htlcs_out: htlc_out_map to store loaded htlc_out in
*
* This function looks for HTLCs that are associated with the given
* channel and loads them into the provided maps. One caveat is that
* the `struct htlc_out` instances are not wired up with the
* corresponding `struct htlc_in` in the forwarding case nor are they
* associated with a `struct pay_command` in the case we originated
* the payment. In the former case the corresponding `struct htlc_in`
* may not have been loaded yet. In the latter case the pay_command
* does not exist anymore since we restarted.
*
* Use `htlcs_reconnect` to wire htlc_out instances to the
* corresponding htlc_in after loading all channels.
*/
bool wallet_htlcs_load_for_channel(struct wallet *wallet,
struct channel *chan,
struct htlc_in_map *htlcs_in,
struct htlc_out_map *htlcs_out);
/* /!\ This is a DB ENUM, please do not change the numbering of any
* already defined elements (adding is ok) /!\ */
enum invoice_status {
UNPAID,
PAID,
EXPIRED,
};
static inline enum invoice_status invoice_status_in_db(enum invoice_status s)
{
switch (s) {
case UNPAID:
BUILD_ASSERT(UNPAID == 0);
return s;
case PAID:
BUILD_ASSERT(PAID == 1);
return s;
case EXPIRED:
BUILD_ASSERT(EXPIRED == 2);
return s;
}
fatal("%s: %u is invalid", __func__, s);
}
/* The information about an invoice */
struct invoice_details {
/* Current invoice state */
enum invoice_status state;
/* Preimage for this invoice */
struct preimage r;
/* Hash of preimage r */
struct sha256 rhash;
/* Label assigned by user */
const struct json_escaped *label;
/* NULL if they specified "any" */
struct amount_msat *msat;
/* Absolute UNIX epoch time this will expire */
u64 expiry_time;
/* Set if state == PAID; order to be returned by waitanyinvoice */
u64 pay_index;
/* Set if state == PAID; amount received */
struct amount_msat received;
/* Set if state == PAID; time paid */
u64 paid_timestamp;
/* BOLT11 encoding for this invoice */
const char *bolt11;
/* The description of the payment. */
char *description;
};
/* An object that handles iteration over the set of invoices */
struct invoice_iterator {
/* The contents of this object is subject to change
* and should not be depended upon */
void *p;
};
struct invoice {
/* Internal, rest of lightningd should not use */
/* Database ID */
u64 id;
};
#define INVOICE_MAX_LABEL_LEN 128
/**
* wallet_invoice_create - Create a new invoice.
*
* @wallet - the wallet to create the invoice in.
* @pinvoice - pointer to location to load new invoice in.
* @msat - the amount the invoice should have, or
* NULL for any-amount invoices.
* @label - the unique label for this invoice. Must be
* non-NULL.
* @expiry - the number of seconds before the invoice
* expires
*
* Returns false if label already exists or expiry is 0.
* Returns true if created invoice.
* FIXME: Fallback addresses
*/
bool wallet_invoice_create(struct wallet *wallet,
struct invoice *pinvoice,
const struct amount_msat *msat TAKES,
const struct json_escaped *label TAKES,
u64 expiry,
const char *b11enc,
const char *description,
const struct preimage *r,
const struct sha256 *rhash);
/**
* wallet_invoice_find_by_label - Search for an invoice by label
*
* @wallet - the wallet to search.
* @pinvoice - pointer to location to load found invoice in.
* @label - the label to search for.
*
* Returns false if no invoice with that label exists.
* Returns true if found.
*/
bool wallet_invoice_find_by_label(struct wallet *wallet,
struct invoice *pinvoice,
const struct json_escaped *label);
/**
* wallet_invoice_find_by_rhash - Search for an invoice by payment_hash
*
* @wallet - the wallet to search.
* @pinvoice - pointer to location to load found invoice in.
* @rhash - the payment_hash to search for.
*
* Returns false if no invoice with that rhash exists.
* Returns true if found.
*/
bool wallet_invoice_find_by_rhash(struct wallet *wallet,
struct invoice *pinvoice,
const struct sha256 *rhash);
/**
* wallet_invoice_find_unpaid - Search for an unpaid, unexpired invoice by
* payment_hash
*
* @wallet - the wallet to search.
* @pinvoice - pointer to location to load found invoice in.
* @rhash - the payment_hash to search for.
*
* Returns false if no unpaid invoice with that rhash exists.
* Returns true if found.
*/
bool wallet_invoice_find_unpaid(struct wallet *wallet,
struct invoice *pinvoice,
const struct sha256 *rhash);
/**
* wallet_invoice_delete - Delete an invoice
*
* @wallet - the wallet to delete the invoice from.
* @invoice - the invoice to delete.
*
* Return false on failure.
*/
bool wallet_invoice_delete(struct wallet *wallet,
struct invoice invoice);
/**
* wallet_invoice_delete_expired - Delete all expired invoices
* with expiration time less than or equal to the given.
*
* @wallet - the wallet to delete invoices from.
* @max_expiry_time - the maximum expiry time to delete.
*/
void wallet_invoice_delete_expired(struct wallet *wallet,
u64 max_expiry_time);
/**
* wallet_invoice_autoclean - Set up a repeating autoclean of
* expired invoices.
* Cleans (deletes) expired invoices every @cycle_seconds.
* Clean only those invoices that have been expired for at
* least @expired_by seconds or more.
*/
void wallet_invoice_autoclean(struct wallet * wallet,
u64 cycle_seconds,
u64 expired_by);
/**
* wallet_invoice_iterate - Iterate over all existing invoices
*
* @wallet - the wallet whose invoices are to be iterated over.
* @iterator - the iterator object to use.
*
* Return false at end-of-sequence, true if still iterating.
* Usage:
*
* struct invoice_iterator it;
* memset(&it, 0, sizeof(it))
* while (wallet_invoice_iterate(wallet, &it)) {
* ...
* }
*/
bool wallet_invoice_iterate(struct wallet *wallet,
struct invoice_iterator *it);
/**
* wallet_invoice_iterator_deref - Read the details of the
* invoice currently pointed to by the given iterator.
*
* @ctx - the owner of the label and msatoshi fields returned.
* @wallet - the wallet whose invoices are to be iterated over.
* @iterator - the iterator object to use.
* @return pointer to the invoice details allocated off of `ctx`.
*/
const struct invoice_details *wallet_invoice_iterator_deref(const tal_t *ctx,
struct wallet *wallet,
const struct invoice_iterator *it);
/**
* wallet_invoice_resolve - Mark an invoice as paid
*
* @wallet - the wallet containing the invoice.
* @invoice - the invoice to mark as paid.
* @received - the actual amount received.
*
* Precondition: the invoice must not yet be expired (wallet
* does not check!).
*/
void wallet_invoice_resolve(struct wallet *wallet,
struct invoice invoice,
struct amount_msat received);
/**
* wallet_invoice_waitany - Wait for any invoice to be paid.
*
* @ctx - the owner of the callback. If the owner is freed,
* the callback is cancelled.
* @wallet - the wallet to query.
* @lastpay_index - wait for invoices after the specified
* pay_index. Use 0 to wait for the first invoice.
* @cb - the callback to invoke. If an invoice is already
* paid with pay_index greater than lastpay_index, this
* is called immediately, otherwise it is called during
* an invoices_resolve call. Will never be given a NULL
* pointer-to-invoice.
* @cbarg - the callback data.
*/
void wallet_invoice_waitany(const tal_t *ctx,
struct wallet *wallet,
u64 lastpay_index,
void (*cb)(const struct invoice *, void*),
void *cbarg);
/**
* wallet_invoice_waitone - Wait for a specific invoice to be paid,
* deleted, or expired.
*
* @ctx - the owner of the callback. If the owner is freed,
* the callback is cancelled.
* @wallet - the wallet to query.
* @invoice - the invoice to wait on.
* @cb - the callback to invoice. If invoice is already paid
* or expired, this is called immediately, otherwise it is
* called during an invoices_resolve or invoices_delete call.
* If the invoice was deleted, the callback is given a NULL
* invoice.
* @cbarg - the callback data.
*
*/
void wallet_invoice_waitone(const tal_t *ctx,
struct wallet *wallet,
struct invoice invoice,
void (*cb)(const struct invoice *, void*),
void *cbarg);
/**
* wallet_invoice_details - Get the invoice_details of an invoice.
*
* @ctx - the owner of the label and msatoshi fields returned.
* @wallet - the wallet to query.
* @invoice - the invoice to get details on.
* @return pointer to the invoice details allocated off of `ctx`.
*/
const struct invoice_details *wallet_invoice_details(const tal_t *ctx,
struct wallet *wallet,
struct invoice invoice);
/**
* wallet_htlc_stubs - Retrieve HTLC stubs for the given channel
*
* Load minimal necessary information about HTLCs for the on-chain
* settlement. This returns a `tal_arr` allocated off of @ctx with the
* necessary size to hold all HTLCs.
*
* @ctx: Allocation context for the return value
* @wallet: Wallet to load from
* @chan: Channel to fetch stubs for
*/
struct htlc_stub *wallet_htlc_stubs(const tal_t *ctx, struct wallet *wallet,
struct channel *chan);
/**
* wallet_payment_setup - Remember this payment for later committing.
*
* Either wallet_payment_store() gets called to put in db once hout
* is ready to go (and frees @payment), or @payment is tal_free'd.
*
* @wallet: wallet we're going to store it in.
* @payment: the payment for later committing.
*/
void wallet_payment_setup(struct wallet *wallet, struct wallet_payment *payment);
/**
* wallet_payment_store - Record a new incoming/outgoing payment
*
* Stores the payment in the database.
*/
void wallet_payment_store(struct wallet *wallet,
const struct sha256 *payment_hash);
/**
* wallet_payment_delete - Remove a payment
*
* Removes the payment from the database.
*/
void wallet_payment_delete(struct wallet *wallet,
const struct sha256 *payment_hash);
/**
* wallet_local_htlc_out_delete - Remove a local outgoing failed HTLC
*
* This is not a generic HTLC cleanup! This is specifically for the
* narrow (and simple!) case of removing the HTLC associated with a
* local outgoing payment.
*/
void wallet_local_htlc_out_delete(struct wallet *wallet,
struct channel *chan,
const struct sha256 *payment_hash);
/**
* wallet_payment_by_hash - Retrieve a specific payment
*
* Given the `payment_hash` retrieve the matching payment.
*/
struct wallet_payment *
wallet_payment_by_hash(const tal_t *ctx, struct wallet *wallet,
const struct sha256 *payment_hash);
/**
* wallet_payment_set_status - Update the status of the payment
*
* Search for the payment with the given `payment_hash` and update
* its state.
*/
void wallet_payment_set_status(struct wallet *wallet,
const struct sha256 *payment_hash,
const enum wallet_payment_status newstatus,
const struct preimage *preimage);
/**
* wallet_payment_get_failinfo - Get failure information for a given
* `payment_hash`.
*
* Data is allocated as children of the given context. *faildirection
* is only set if *failchannel is set non-NULL.
*/
void wallet_payment_get_failinfo(const tal_t *ctx,
struct wallet *wallet,
const struct sha256 *payment_hash,
/* outputs */
u8 **failonionreply,
bool *faildestperm,
int *failindex,
enum onion_type *failcode,
struct pubkey **failnode,
struct short_channel_id **failchannel,
u8 **failupdate,
char **faildetail,
int *faildirection);
/**
* wallet_payment_set_failinfo - Set failure information for a given
* `payment_hash`.
*/
void wallet_payment_set_failinfo(struct wallet *wallet,
const struct sha256 *payment_hash,
const u8 *failonionreply,
bool faildestperm,
int failindex,
enum onion_type failcode,
const struct pubkey *failnode,
const struct short_channel_id *failchannel,
const u8 *failupdate,
const char *faildetail,
int faildirection);
/**
* wallet_payment_list - Retrieve a list of payments
*
* payment_hash: optional filter for only this payment hash.
*/
const struct wallet_payment **wallet_payment_list(const tal_t *ctx,
struct wallet *wallet,
const struct sha256 *payment_hash);
/**
* wallet_htlc_sigs_save - Store the latest HTLC sigs for the channel
*/
void wallet_htlc_sigs_save(struct wallet *w, u64 channel_id,
secp256k1_ecdsa_signature *htlc_sigs);
/**
* wallet_network_check - Check that the wallet is setup for this chain
*
* Ensure that the genesis_hash from the chainparams matches the
* genesis_hash with which the DB was initialized. Returns false if
* the check failed, i.e., if the genesis hashes do not match.
*/
bool wallet_network_check(struct wallet *w,
const struct chainparams *chainparams);
/**
* wallet_block_add - Add a block to the blockchain tracked by this wallet
*/
void wallet_block_add(struct wallet *w, struct block *b);
/**
* wallet_block_remove - Remove a block (and all its descendants) from the tracked blockchain
*/
void wallet_block_remove(struct wallet *w, struct block *b);
/**
* wallet_blocks_rollback - Roll the blockchain back to the given height
*/
void wallet_blocks_rollback(struct wallet *w, u32 height);
/**
* Mark an outpoint as spent, both in the owned as well as the UTXO set
*
* Given the outpoint (txid, outnum), and the blockheight, mark the
* corresponding DB entries as spent at the blockheight.
*
* @return scid The short_channel_id corresponding to the spent outpoint, if
* any.
*/
const struct short_channel_id *
wallet_outpoint_spend(struct wallet *w, const tal_t *ctx, const u32 blockheight,
const struct bitcoin_txid *txid, const u32 outnum);
struct outpoint *wallet_outpoint_for_scid(struct wallet *w, tal_t *ctx,
const struct short_channel_id *scid);
void wallet_utxoset_add(struct wallet *w, const struct bitcoin_tx *tx,
const u32 outnum, const u32 blockheight,
const u32 txindex, const u8 *scriptpubkey,
struct amount_sat sat);
void wallet_transaction_add(struct wallet *w, const struct bitcoin_tx *tx,
const u32 blockheight, const u32 txindex);
/**
* Get the confirmation height of a transaction we are watching by its
* txid. Returns 0 if the transaction was not part of any block.
*/
u32 wallet_transaction_height(struct wallet *w, const struct bitcoin_txid *txid);
/**
* Locate a transaction in the blockchain, returns NULL if the transaction is
* not tracked or is not yet confirmed.
*/
struct txlocator *wallet_transaction_locate(const tal_t *ctx, struct wallet *w,
const struct bitcoin_txid *txid);
/**
* Get transaction IDs for transactions that we are tracking.
*/
struct bitcoin_txid *wallet_transactions_by_height(const tal_t *ctx,
struct wallet *w,
const u32 blockheight);
/**
* Store transactions of interest in the database to replay on restart
*/
void wallet_channeltxs_add(struct wallet *w, struct channel *chan,
const int type, const struct bitcoin_txid *txid,
const u32 input_num, const u32 blockheight);
/**
* List channels for which we had an onchaind running
*/
u32 *wallet_onchaind_channels(struct wallet *w,
const tal_t *ctx);
/**
* Get transactions that we'd like to replay for a channel.
*/
struct channeltx *wallet_channeltxs_get(struct wallet *w, const tal_t *ctx,
u32 channel_id);
/**
* Add of update a forwarded_payment
*/
void wallet_forwarded_payment_add(struct wallet *w, const struct htlc_in *in,
const struct htlc_out *out,
enum forward_status state);
/**
* Retrieve summary of successful forwarded payments' fees
*/
struct amount_msat wallet_total_forward_fees(struct wallet *w);
/**
* Retrieve a list of all forwarded_payments
*/
const struct forwarding *wallet_forwarded_payments_get(struct wallet *w,
const tal_t *ctx);
#endif /* LIGHTNING_WALLET_WALLET_H */