#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /** * wallet_withdrawal_broadcast - The tx has been broadcast (or it failed) * * This is the final step in the withdrawal. We either successfully * broadcast the withdrawal transaction or it failed somehow. So we * report success or a broadcast failure. Upon success we also mark * the used outputs as spent, and add the change output to our pool of * available outputs. */ static void wallet_withdrawal_broadcast(struct bitcoind *bitcoind UNUSED, int exitstatus, const char *msg, struct unreleased_tx *utx) { struct command *cmd = utx->wtx->cmd; struct lightningd *ld = cmd->ld; struct amount_sat change = AMOUNT_SAT(0); /* FIXME: This won't be necessary once we use ccan/json_out! */ /* Massage output into shape so it doesn't kill the JSON serialization */ char *output = tal_strjoin(cmd, tal_strsplit(cmd, msg, "\n", STR_NO_EMPTY), " ", STR_NO_TRAIL); if (exitstatus == 0) { /* Mark used outputs as spent */ wallet_confirm_utxos(ld->wallet, utx->wtx->utxos); /* Extract the change output and add it to the DB */ wallet_extract_owned_outputs(ld->wallet, utx->tx, NULL, &change); /* Note normally, change_satoshi == withdraw->wtx->change, but * not if we're actually making a payment to ourselves! */ assert(amount_sat_greater_eq(change, utx->wtx->change)); struct json_stream *response = json_stream_success(cmd); json_add_tx(response, "tx", utx->tx); json_add_string(response, "txid", output); was_pending(command_success(cmd, response)); } else { was_pending(command_fail(cmd, LIGHTNINGD, "Error broadcasting transaction: %s", output)); } } static struct command_result *param_bitcoin_address(struct command *cmd, const char *name, const char *buffer, const jsmntok_t *tok, const u8 **scriptpubkey) { /* Parse address. */ switch (json_tok_address_scriptpubkey(cmd, get_chainparams(cmd->ld), buffer, tok, scriptpubkey)) { case ADDRESS_PARSE_UNRECOGNIZED: return command_fail(cmd, LIGHTNINGD, "Could not parse destination address, " "%s should be a valid address", name ? name : "address field"); case ADDRESS_PARSE_WRONG_NETWORK: return command_fail(cmd, LIGHTNINGD, "Destination address is not on network %s", get_chainparams(cmd->ld)->network_name); case ADDRESS_PARSE_SUCCESS: return NULL; } abort(); } /* Signs the tx, broadcasts it: broadcast calls wallet_withdrawal_broadcast */ static struct command_result *broadcast_and_wait(struct command *cmd, struct unreleased_tx *utx) { struct bitcoin_tx *signed_tx; struct bitcoin_txid signed_txid; /* FIXME: hsm will sign almost anything, but it should really * fail cleanly (not abort!) and let us report the error here. */ u8 *msg = towire_hsm_sign_withdrawal(cmd, utx->wtx->amount, utx->wtx->change, utx->wtx->change_key_index, cast_const2(const struct bitcoin_tx_output **, utx->outputs), utx->wtx->utxos); if (!wire_sync_write(cmd->ld->hsm_fd, take(msg))) fatal("Could not write sign_withdrawal to HSM: %s", strerror(errno)); msg = wire_sync_read(cmd, cmd->ld->hsm_fd); if (!fromwire_hsm_sign_withdrawal_reply(utx, msg, &signed_tx)) fatal("HSM gave bad sign_withdrawal_reply %s", tal_hex(tmpctx, msg)); signed_tx->chainparams = utx->tx->chainparams; /* Sanity check */ bitcoin_txid(signed_tx, &signed_txid); if (!bitcoin_txid_eq(&signed_txid, &utx->txid)) fatal("HSM changed txid: unsigned %s, signed %s", tal_hex(tmpctx, linearize_tx(tmpctx, utx->tx)), tal_hex(tmpctx, linearize_tx(tmpctx, signed_tx))); /* Replace unsigned tx by signed tx. */ tal_free(utx->tx); utx->tx = signed_tx; /* Now broadcast the transaction */ bitcoind_sendrawtx(cmd->ld->topology->bitcoind, tal_hex(tmpctx, linearize_tx(tmpctx, signed_tx)), wallet_withdrawal_broadcast, utx); return command_still_pending(cmd); } /* Common code for withdraw and txprepare. * * Returns NULL on success, and fills in wtx, output and * maybe changekey (owned by cmd). Otherwise, cmd has failed, so don't * access it! (It's been freed). */ static struct command_result *json_prepare_tx(struct command *cmd, const char *buffer, const jsmntok_t *params, struct unreleased_tx **utx, bool for_withdraw) { u32 *feerate_per_kw; struct command_result *res; u32 *minconf, maxheight; struct pubkey *changekey; struct bitcoin_tx_output **outputs; const jsmntok_t *outputstok, *t; const u8 *destination = NULL; size_t out_len, i; const struct utxo **chosen_utxos; *utx = tal(cmd, struct unreleased_tx); (*utx)->wtx = tal(*utx, struct wallet_tx); wtx_init(cmd, (*utx)->wtx, AMOUNT_SAT(-1ULL)); if (!for_withdraw) { /* From v0.7.3, the new style for *txprepare* use array of outputs * to replace original 'destination' and 'satoshi' parameters.*/ if (!param(cmd, buffer, params, p_req("outputs", param_array, &outputstok), p_opt("feerate", param_feerate, &feerate_per_kw), p_opt_def("minconf", param_number, &minconf, 1), p_opt("utxos", param_utxos, &chosen_utxos), NULL)) { /* For generating help, give new-style. */ if (!params || !deprecated_apis) return command_param_failed(); /* For the old style: * *txprepare* 'destination' 'satoshi' ['feerate'] ['minconf'] */ if (!param(cmd, buffer, params, p_req("destination", param_bitcoin_address, &destination), p_req("satoshi", param_wtx, (*utx)->wtx), p_opt("feerate", param_feerate, &feerate_per_kw), p_opt_def("minconf", param_number, &minconf, 1), NULL)) /* If the parameters mixed the new style and the old style, * fail it. */ return command_param_failed(); } } else { /* *withdraw* command still use 'destination' and 'satoshi' as parameters. */ if (!param(cmd, buffer, params, p_req("destination", param_bitcoin_address, &destination), p_req("satoshi", param_wtx, (*utx)->wtx), p_opt("feerate", param_feerate, &feerate_per_kw), p_opt_def("minconf", param_number, &minconf, 1), p_opt("utxos", param_utxos, &chosen_utxos), NULL)) return command_param_failed(); } if (!feerate_per_kw) { res = param_feerate_estimate(cmd, &feerate_per_kw, FEERATE_NORMAL); if (res) return res; } maxheight = minconf_to_maxheight(*minconf, cmd->ld); /* *withdraw* command or old *txprepare* command. * Support only one output. */ if (destination) { outputs = tal_arr(tmpctx, struct bitcoin_tx_output *, 1); outputs[0] = tal(outputs, struct bitcoin_tx_output); outputs[0]->script = tal_steal(outputs[0], cast_const(u8 *, destination)); outputs[0]->amount = (*utx)->wtx->amount; out_len = tal_count(outputs[0]->script); goto create_tx; } if (outputstok->size == 0) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "Empty outputs"); outputs = tal_arr(tmpctx, struct bitcoin_tx_output *, outputstok->size); out_len = 0; (*utx)->wtx->all_funds = false; (*utx)->wtx->amount = AMOUNT_SAT(0); json_for_each_arr(i, t, outputstok) { struct amount_sat *amount; const u8 *destination; enum address_parse_result res; /* output format: {destination: amount} */ if (t->type != JSMN_OBJECT) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "The output format must be " "{destination: amount}"); res = json_tok_address_scriptpubkey(cmd, get_chainparams(cmd->ld), buffer, &t[1], &destination); if (res == ADDRESS_PARSE_UNRECOGNIZED) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "Could not parse destination address"); else if (res == ADDRESS_PARSE_WRONG_NETWORK) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "Destination address is not on network %s", get_chainparams(cmd->ld)->network_name); amount = tal(tmpctx, struct amount_sat); if (!json_to_sat_or_all(buffer, &t[2], amount)) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "'%.*s' is a invalid satoshi amount", t[2].end - t[2].start, buffer + t[2].start); out_len += tal_count(destination); outputs[i] = tal(outputs, struct bitcoin_tx_output); outputs[i]->amount = *amount; outputs[i]->script = tal_steal(outputs[i], cast_const(u8 *, destination)); /* In fact, the maximum amount of bitcoin satoshi is 2.1e15. * It can't be equal to/bigger than 2^64. * On the hand, the maximum amount of litoshi is 8.4e15, * which also can't overflow. */ /* This means this destination need "all" satoshi we have. */ if (amount_sat_eq(*amount, AMOUNT_SAT(-1ULL))) { if (outputstok->size > 1) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "outputs[%zi]: this destination wants" " all satoshi. The count of outputs" " can't be more than 1. ", i); (*utx)->wtx->all_funds = true; /* `AMOUNT_SAT(-1ULL)` is the max permissible for `wallet_select_all`. */ (*utx)->wtx->amount = *amount; break; } if (!amount_sat_add(&(*utx)->wtx->amount, (*utx)->wtx->amount, *amount)) return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "outputs: The sum of first %zi outputs" " overflow. ", i); } create_tx: (*utx)->outputs = tal_steal(*utx, outputs); if (chosen_utxos) res = wtx_from_utxos((*utx)->wtx, *feerate_per_kw, out_len, maxheight, chosen_utxos); else res = wtx_select_utxos((*utx)->wtx, *feerate_per_kw, out_len, maxheight); if (res) return res; /* Because of the max limit of AMOUNT_SAT(-1ULL), * `(*utx)->wtx->all_funds` won't change in `wtx_select_utxos()` */ if ((*utx)->wtx->all_funds) outputs[0]->amount = (*utx)->wtx->amount; if (!amount_sat_eq((*utx)->wtx->change, AMOUNT_SAT(0))) { changekey = tal(tmpctx, struct pubkey); if (!bip32_pubkey(cmd->ld->wallet->bip32_base, changekey, (*utx)->wtx->change_key_index)) return command_fail(cmd, LIGHTNINGD, "Keys generation failure"); } else changekey = NULL; (*utx)->tx = withdraw_tx(*utx, get_chainparams(cmd->ld), (*utx)->wtx->utxos, (*utx)->outputs, changekey, (*utx)->wtx->change, cmd->ld->wallet->bip32_base, &(*utx)->change_outnum); bitcoin_txid((*utx)->tx, &(*utx)->txid); return NULL; } static struct command_result *json_txprepare(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct unreleased_tx *utx; struct command_result *res; struct json_stream *response; res = json_prepare_tx(cmd, buffer, params, &utx, false); if (res) return res; /* utx will persist past this command. */ tal_steal(cmd->ld->wallet, utx); add_unreleased_tx(cmd->ld->wallet, utx); response = json_stream_success(cmd); json_add_tx(response, "unsigned_tx", utx->tx); json_add_txid(response, "txid", &utx->txid); return command_success(cmd, response); } static const struct json_command txprepare_command = { "txprepare", "bitcoin", json_txprepare, "Create a transaction, with option to spend in future (either txsend and txdiscard)", false }; AUTODATA(json_command, &txprepare_command); static struct command_result *param_unreleased_txid(struct command *cmd, const char *name, const char *buffer, const jsmntok_t *tok, struct unreleased_tx **utx) { struct command_result *res; struct bitcoin_txid *txid; res = param_txid(cmd, name, buffer, tok, &txid); if (res) return res; *utx = find_unreleased_tx(cmd->ld->wallet, txid); if (!*utx) return command_fail(cmd, LIGHTNINGD, "%s not an unreleased txid", type_to_string(cmd, struct bitcoin_txid, txid)); tal_free(txid); return NULL; } static struct command_result *json_txsend(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct unreleased_tx *utx; if (!param(cmd, buffer, params, p_req("txid", param_unreleased_txid, &utx), NULL)) return command_param_failed(); /* We delete from list now, and this command owns it. */ remove_unreleased_tx(utx); tal_steal(cmd, utx); /* We're the owning cmd now. */ utx->wtx->cmd = cmd; wallet_transaction_add(cmd->ld->wallet, utx->tx, 0, 0); wallet_transaction_annotate(cmd->ld->wallet, &utx->txid, TX_UNKNOWN, 0); return broadcast_and_wait(cmd, utx); } static const struct json_command txsend_command = { "txsend", "bitcoin", json_txsend, "Sign and broadcast a transaction created by txprepare", false }; AUTODATA(json_command, &txsend_command); static struct command_result *json_txdiscard(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct unreleased_tx *utx; struct json_stream *response; if (!param(cmd, buffer, params, p_req("txid", param_unreleased_txid, &utx), NULL)) return command_param_failed(); /* Free utx with this command */ tal_steal(cmd, utx); response = json_stream_success(cmd); json_add_tx(response, "unsigned_tx", utx->tx); json_add_txid(response, "txid", &utx->txid); return command_success(cmd, response); } static const struct json_command txdiscard_command = { "txdiscard", "bitcoin", json_txdiscard, "Abandon a transaction created by txprepare", false }; AUTODATA(json_command, &txdiscard_command); /** * json_withdraw - Entrypoint for the withdrawal flow * * A user has requested a withdrawal over the JSON-RPC, parse the * request, select coins and a change key. Then send the request to * the HSM to generate the signatures. */ static struct command_result *json_withdraw(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct unreleased_tx *utx; struct command_result *res; res = json_prepare_tx(cmd, buffer, params, &utx, true); if (res) return res; /* Store the transaction in the DB and annotate it as a withdrawal */ wallet_transaction_add(cmd->ld->wallet, utx->tx, 0, 0); wallet_transaction_annotate(cmd->ld->wallet, &utx->txid, TX_WALLET_WITHDRAWAL, 0); return broadcast_and_wait(cmd, utx); } static const struct json_command withdraw_command = { "withdraw", "bitcoin", json_withdraw, "Send to {destination} address {satoshi} (or 'all') amount via Bitcoin " "transaction, at optional {feerate}", false, "Send funds from the internal wallet to the specified address. Either " "specify a number of satoshis to send or 'all' to sweep all funds in the " "internal wallet to the address. Only use outputs that have at least " "{minconf} confirmations." }; AUTODATA(json_command, &withdraw_command); /* May return NULL if encoding error occurs. */ static char * encode_pubkey_to_addr(const tal_t *ctx, const struct lightningd *ld, const struct pubkey *pubkey, bool is_p2sh_p2wpkh, /* Output: redeemscript to use to redeem outputs * paying to the address. * May be NULL if redeemscript is do not care. */ u8 **out_redeemscript) { char *out; const char *hrp; struct sha256 h; struct ripemd160 h160; u8 *redeemscript; bool ok; if (is_p2sh_p2wpkh) { redeemscript = bitcoin_redeem_p2sh_p2wpkh(ctx, pubkey); sha256(&h, redeemscript, tal_count(redeemscript)); ripemd160(&h160, h.u.u8, sizeof(h)); out = p2sh_to_base58(ctx, get_chainparams(ld), &h160); } else { hrp = get_chainparams(ld)->bip173_name; /* out buffer is 73 + strlen(human readable part), * see common/bech32.h*/ out = tal_arr(ctx, char, 73 + strlen(hrp)); pubkey_to_hash160(pubkey, &h160); /* I am uncertain why this is so for direct SegWit * outputs, but this is how listaddrs worked prior to * this code being refactored. */ redeemscript = tal_dup_arr(ctx, u8, (u8 *) &h160, sizeof(h160), 0); ok = segwit_addr_encode(out, hrp, 0, h160.u.u8, sizeof(h160)); if (!ok) out = tal_free(out); } if (out_redeemscript) *out_redeemscript = redeemscript; else tal_free(redeemscript); return out; } enum addrtype { ADDR_P2SH_SEGWIT = 1, ADDR_BECH32 = 2, ADDR_ALL = (ADDR_P2SH_SEGWIT + ADDR_BECH32) }; /* Extract bool indicating "p2sh-segwit" or "bech32" */ static struct command_result *param_newaddr(struct command *cmd, const char *name, const char *buffer, const jsmntok_t *tok, enum addrtype **addrtype) { *addrtype = tal(cmd, enum addrtype); if (json_tok_streq(buffer, tok, "p2sh-segwit")) **addrtype = ADDR_P2SH_SEGWIT; else if (json_tok_streq(buffer, tok, "bech32")) **addrtype = ADDR_BECH32; else if (json_tok_streq(buffer, tok, "all")) **addrtype = ADDR_ALL; else return command_fail(cmd, JSONRPC2_INVALID_PARAMS, "'%s' should be 'bech32', 'p2sh-segwit' or 'all', not '%.*s'", name, tok->end - tok->start, buffer + tok->start); return NULL; } static struct command_result *json_newaddr(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct json_stream *response; struct pubkey pubkey; enum addrtype *addrtype; s64 keyidx; char *p2sh, *bech32; u8 *b32script; if (!param(cmd, buffer, params, p_opt_def("addresstype", param_newaddr, &addrtype, ADDR_BECH32), NULL)) return command_param_failed(); keyidx = wallet_get_newindex(cmd->ld); if (keyidx < 0) { return command_fail(cmd, LIGHTNINGD, "Keys exhausted "); } if (!bip32_pubkey(cmd->ld->wallet->bip32_base, &pubkey, keyidx)) return command_fail(cmd, LIGHTNINGD, "Keys generation failure"); b32script = scriptpubkey_p2wpkh(tmpctx, &pubkey); if (*addrtype & ADDR_BECH32) txfilter_add_scriptpubkey(cmd->ld->owned_txfilter, b32script); if (*addrtype & ADDR_P2SH_SEGWIT) txfilter_add_scriptpubkey(cmd->ld->owned_txfilter, scriptpubkey_p2sh(tmpctx, b32script)); p2sh = encode_pubkey_to_addr(cmd, cmd->ld, &pubkey, true, NULL); bech32 = encode_pubkey_to_addr(cmd, cmd->ld, &pubkey, false, NULL); if (!p2sh || !bech32) { return command_fail(cmd, LIGHTNINGD, "p2wpkh address encoding failure."); } response = json_stream_success(cmd); if (deprecated_apis && *addrtype != ADDR_ALL) json_add_string(response, "address", *addrtype & ADDR_BECH32 ? bech32 : p2sh); if (*addrtype & ADDR_BECH32) json_add_string(response, "bech32", bech32); if (*addrtype & ADDR_P2SH_SEGWIT) json_add_string(response, "p2sh-segwit", p2sh); return command_success(cmd, response); } static const struct json_command newaddr_command = { "newaddr", "bitcoin", json_newaddr, "Get a new {bech32, p2sh-segwit} (or all) address to fund a channel (default is bech32)", false, "Generates a new address (or both) that belongs to the internal wallet. Funds sent to these addresses will be managed by lightningd. Use `withdraw` to withdraw funds to an external wallet." }; AUTODATA(json_command, &newaddr_command); static struct command_result *json_listaddrs(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct json_stream *response; struct pubkey pubkey; u64 *bip32_max_index; if (!param(cmd, buffer, params, p_opt("bip32_max_index", param_u64, &bip32_max_index), NULL)) return command_param_failed(); if (!bip32_max_index) { bip32_max_index = tal(cmd, u64); *bip32_max_index = db_get_intvar(cmd->ld->wallet->db, "bip32_max_index", 0); } response = json_stream_success(cmd); json_array_start(response, "addresses"); for (s64 keyidx = 0; keyidx <= *bip32_max_index; keyidx++) { if(keyidx == BIP32_INITIAL_HARDENED_CHILD){ break; } if (!bip32_pubkey(cmd->ld->wallet->bip32_base, &pubkey, keyidx)) abort(); // p2sh u8 *redeemscript_p2sh; char *out_p2sh = encode_pubkey_to_addr(cmd, cmd->ld, &pubkey, true, &redeemscript_p2sh); // bech32 : p2wpkh u8 *redeemscript_p2wpkh; char *out_p2wpkh = encode_pubkey_to_addr(cmd, cmd->ld, &pubkey, false, &redeemscript_p2wpkh); if (!out_p2wpkh) { abort(); } // outputs json_object_start(response, NULL); json_add_u64(response, "keyidx", keyidx); json_add_pubkey(response, "pubkey", &pubkey); json_add_string(response, "p2sh", out_p2sh); json_add_hex_talarr(response, "p2sh_redeemscript", redeemscript_p2sh); json_add_string(response, "bech32", out_p2wpkh); json_add_hex_talarr(response, "bech32_redeemscript", redeemscript_p2wpkh); json_object_end(response); } json_array_end(response); return command_success(cmd, response); } static const struct json_command listaddrs_command = { "dev-listaddrs", "developer", json_listaddrs, "Show addresses list up to derivation {index} (default is the last bip32 index)", false, "Show addresses of your internal wallet. Use `newaddr` to generate a new address." }; AUTODATA(json_command, &listaddrs_command); static struct command_result *json_listfunds(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct json_stream *response; struct peer *p; struct utxo **utxos; char* out; struct pubkey funding_pubkey; if (!param(cmd, buffer, params, NULL)) return command_param_failed(); utxos = wallet_get_utxos(cmd, cmd->ld->wallet, output_state_available); response = json_stream_success(cmd); json_array_start(response, "outputs"); for (size_t i = 0; i < tal_count(utxos); i++) { json_object_start(response, NULL); json_add_txid(response, "txid", &utxos[i]->txid); json_add_num(response, "output", utxos[i]->outnum); json_add_amount_sat_compat(response, utxos[i]->amount, "value", "amount_msat"); /* @close_info is for outputs that are not yet claimable */ if (utxos[i]->close_info == NULL) { bip32_pubkey(cmd->ld->wallet->bip32_base, &funding_pubkey, utxos[i]->keyindex); out = encode_pubkey_to_addr(cmd, cmd->ld, &funding_pubkey, utxos[i]->is_p2sh, NULL); if (!out) { return command_fail(cmd, LIGHTNINGD, "p2wpkh address encoding failure."); } json_add_string(response, "address", out); } else if (utxos[i]->scriptPubkey != NULL) { out = encode_scriptpubkey_to_addr( cmd, get_chainparams(cmd->ld)->bip173_name, utxos[i]->scriptPubkey); if (out) json_add_string(response, "address", out); } if (utxos[i]->spendheight) json_add_string(response, "status", "spent"); else if (utxos[i]->blockheight) { json_add_string(response, "status", "confirmed"); json_add_num(response, "blockheight", *utxos[i]->blockheight); } else json_add_string(response, "status", "unconfirmed"); json_object_end(response); } json_array_end(response); /* Add funds that are allocated to channels */ json_array_start(response, "channels"); list_for_each(&cmd->ld->peers, p, list) { struct channel *c; list_for_each(&p->channels, c, list) { json_object_start(response, NULL); json_add_node_id(response, "peer_id", &p->id); /* Mirrors logic in listpeers */ json_add_bool(response, "connected", channel_active(c) && c->connected); json_add_string(response, "state", channel_state_name(c)); if (c->scid) json_add_short_channel_id(response, "short_channel_id", c->scid); json_add_amount_sat_compat(response, amount_msat_to_sat_round_down(c->our_msat), "channel_sat", "our_amount_msat"); json_add_amount_sat_compat(response, c->funding, "channel_total_sat", "amount_msat"); json_add_txid(response, "funding_txid", &c->funding_txid); json_add_num(response, "funding_output", c->funding_outnum); json_object_end(response); } } json_array_end(response); return command_success(cmd, response); } static const struct json_command listfunds_command = { "listfunds", "utility", json_listfunds, "Show available funds from the internal wallet", false, "Returns a list of funds (outputs) that can be used by the internal wallet to open new channels or can be withdrawn, using the `withdraw` command, to another wallet." }; AUTODATA(json_command, &listfunds_command); struct txo_rescan { struct command *cmd; struct utxo **utxos; struct json_stream *response; }; static void process_utxo_result(struct bitcoind *bitcoind, const struct bitcoin_tx_output *txout, void *arg) { struct txo_rescan *rescan = arg; struct json_stream *response = rescan->response; struct utxo *u = rescan->utxos[0]; enum output_status newstate = txout == NULL ? output_state_spent : output_state_available; json_object_start(rescan->response, NULL); json_add_txid(response, "txid", &u->txid); json_add_num(response, "output", u->outnum); json_add_num(response, "oldstate", u->status); json_add_num(response, "newstate", newstate); json_object_end(rescan->response); wallet_update_output_status(bitcoind->ld->wallet, &u->txid, u->outnum, u->status, newstate); /* Remove the utxo we just resolved */ rescan->utxos[0] = rescan->utxos[tal_count(rescan->utxos) - 1]; tal_resize(&rescan->utxos, tal_count(rescan->utxos) - 1); if (tal_count(rescan->utxos) == 0) { /* Complete the response */ json_array_end(rescan->response); was_pending(command_success(rescan->cmd, rescan->response)); } else { bitcoind_gettxout( bitcoind->ld->topology->bitcoind, &rescan->utxos[0]->txid, rescan->utxos[0]->outnum, process_utxo_result, rescan); } } static struct command_result *json_dev_rescan_outputs(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct txo_rescan *rescan = tal(cmd, struct txo_rescan); if (!param(cmd, buffer, params, NULL)) return command_param_failed(); rescan->response = json_stream_success(cmd); rescan->cmd = cmd; /* Open the outputs structure so we can incrementally add results */ json_array_start(rescan->response, "outputs"); rescan->utxos = wallet_get_utxos(rescan, cmd->ld->wallet, output_state_any); if (tal_count(rescan->utxos) == 0) { json_array_end(rescan->response); return command_success(cmd, rescan->response); } bitcoind_gettxout(cmd->ld->topology->bitcoind, &rescan->utxos[0]->txid, rescan->utxos[0]->outnum, process_utxo_result, rescan); return command_still_pending(cmd); } static const struct json_command dev_rescan_output_command = { "dev-rescan-outputs", "developer", json_dev_rescan_outputs, "Synchronize the state of our funds with bitcoind", false, "For each output stored in the internal wallet ask `bitcoind` whether we are in sync with its state (spent vs. unspent)" }; AUTODATA(json_command, &dev_rescan_output_command); #if EXPERIMENTAL_FEATURES struct { enum wallet_tx_type t; const char *name; } wallet_tx_type_display_names[] = { {TX_THEIRS, "theirs"}, {TX_WALLET_DEPOSIT, "deposit"}, {TX_WALLET_WITHDRAWAL, "withdraw"}, {TX_CHANNEL_FUNDING, "channel_funding"}, {TX_CHANNEL_CLOSE, "channel_mutual_close"}, {TX_CHANNEL_UNILATERAL, "channel_unilateral_close"}, {TX_CHANNEL_SWEEP, "channel_sweep"}, {TX_CHANNEL_HTLC_SUCCESS, "channel_htlc_success"}, {TX_CHANNEL_HTLC_TIMEOUT, "channel_htlc_timeout"}, {TX_CHANNEL_PENALTY, "channel_penalty"}, {TX_CHANNEL_CHEAT, "channel_unilateral_cheat"}, {0, NULL} }; static void json_add_txtypes(struct json_stream *result, const char *fieldname, enum wallet_tx_type value) { json_array_start(result, fieldname); for (size_t i=0; wallet_tx_type_display_names[i].name != NULL; i++) { if (value & wallet_tx_type_display_names[i].t) json_add_string(result, NULL, wallet_tx_type_display_names[i].name); } json_array_end(result); } static struct command_result *json_listtransactions(struct command *cmd, const char *buffer, const jsmntok_t *obj UNNEEDED, const jsmntok_t *params) { struct json_stream *response; struct wallet_transaction *txs; if (!param(cmd, buffer, params, NULL)) return command_param_failed(); txs = wallet_transactions_get(cmd->ld->wallet, cmd); response = json_stream_success(cmd); json_array_start(response, "transactions"); for (size_t i=0; i