Bitcoin Core  0.18.99
P2P Digital Currency
init.cpp
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1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2019 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 
6 #include <init.h>
7 #include <interfaces/chain.h>
8 #include <net.h>
9 #include <outputtype.h>
10 #include <util/moneystr.h>
11 #include <util/system.h>
12 #include <util/translation.h>
13 #include <wallet/wallet.h>
14 #include <wallet/walletutil.h>
15 #include <walletinitinterface.h>
16 
18 public:
19 
21  bool HasWalletSupport() const override {return true;}
22 
24  void AddWalletOptions() const override;
25 
27  bool ParameterInteraction() const override;
28 
30  void Construct(InitInterfaces& interfaces) const override;
31 };
32 
34 
36 {
37  gArgs.AddArg("-addresstype", strprintf("What type of addresses to use (\"legacy\", \"p2sh-segwit\", or \"bech32\", default: \"%s\")", FormatOutputType(DEFAULT_ADDRESS_TYPE)), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
38  gArgs.AddArg("-avoidpartialspends", strprintf("Group outputs by address, selecting all or none, instead of selecting on a per-output basis. Privacy is improved as an address is only used once (unless someone sends to it after spending from it), but may result in slightly higher fees as suboptimal coin selection may result due to the added limitation (default: %u (always enabled for wallets with \"avoid_reuse\" enabled))", DEFAULT_AVOIDPARTIALSPENDS), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
39  gArgs.AddArg("-changetype", "What type of change to use (\"legacy\", \"p2sh-segwit\", or \"bech32\"). Default is same as -addresstype, except when -addresstype=p2sh-segwit a native segwit output is used when sending to a native segwit address)", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
40  gArgs.AddArg("-disablewallet", "Do not load the wallet and disable wallet RPC calls", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
41  gArgs.AddArg("-discardfee=<amt>", strprintf("The fee rate (in %s/kB) that indicates your tolerance for discarding change by adding it to the fee (default: %s). "
42  "Note: An output is discarded if it is dust at this rate, but we will always discard up to the dust relay fee and a discard fee above that is limited by the fee estimate for the longest target",
44  gArgs.AddArg("-fallbackfee=<amt>", strprintf("A fee rate (in %s/kB) that will be used when fee estimation has insufficient data (default: %s)",
46  gArgs.AddArg("-keypool=<n>", strprintf("Set key pool size to <n> (default: %u)", DEFAULT_KEYPOOL_SIZE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
47  gArgs.AddArg("-maxtxfee=<amt>", strprintf("Maximum total fees (in %s) to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)",
49  gArgs.AddArg("-mintxfee=<amt>", strprintf("Fees (in %s/kB) smaller than this are considered zero fee for transaction creation (default: %s)",
51  gArgs.AddArg("-paytxfee=<amt>", strprintf("Fee (in %s/kB) to add to transactions you send (default: %s)",
53  gArgs.AddArg("-rescan", "Rescan the block chain for missing wallet transactions on startup", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
54  gArgs.AddArg("-salvagewallet", "Attempt to recover private keys from a corrupt wallet on startup", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
55  gArgs.AddArg("-spendzeroconfchange", strprintf("Spend unconfirmed change when sending transactions (default: %u)", DEFAULT_SPEND_ZEROCONF_CHANGE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
56  gArgs.AddArg("-txconfirmtarget=<n>", strprintf("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)", DEFAULT_TX_CONFIRM_TARGET), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
57  gArgs.AddArg("-upgradewallet", "Upgrade wallet to latest format on startup", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
58  gArgs.AddArg("-wallet=<path>", "Specify wallet database path. Can be specified multiple times to load multiple wallets. Path is interpreted relative to <walletdir> if it is not absolute, and will be created if it does not exist (as a directory containing a wallet.dat file and log files). For backwards compatibility this will also accept names of existing data files in <walletdir>.)", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::WALLET);
59  gArgs.AddArg("-walletbroadcast", strprintf("Make the wallet broadcast transactions (default: %u)", DEFAULT_WALLETBROADCAST), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
60  gArgs.AddArg("-walletdir=<dir>", "Specify directory to hold wallets (default: <datadir>/wallets if it exists, otherwise <datadir>)", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
61 #if HAVE_SYSTEM
62  gArgs.AddArg("-walletnotify=<cmd>", "Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
63 #endif
64  gArgs.AddArg("-walletrbf", strprintf("Send transactions with full-RBF opt-in enabled (RPC only, default: %u)", DEFAULT_WALLET_RBF), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
65  gArgs.AddArg("-zapwallettxes=<mode>", "Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup"
66  " (1 = keep tx meta data e.g. payment request information, 2 = drop tx meta data)", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
67 
68  gArgs.AddArg("-dblogsize=<n>", strprintf("Flush wallet database activity from memory to disk log every <n> megabytes (default: %u)", DEFAULT_WALLET_DBLOGSIZE), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::WALLET_DEBUG_TEST);
69  gArgs.AddArg("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", DEFAULT_FLUSHWALLET), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::WALLET_DEBUG_TEST);
70  gArgs.AddArg("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", DEFAULT_WALLET_PRIVDB), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::WALLET_DEBUG_TEST);
71  gArgs.AddArg("-walletrejectlongchains", strprintf("Wallet will not create transactions that violate mempool chain limits (default: %u)", DEFAULT_WALLET_REJECT_LONG_CHAINS), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::WALLET_DEBUG_TEST);
72 }
73 
75 {
76  if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
77  for (const std::string& wallet : gArgs.GetArgs("-wallet")) {
78  LogPrintf("%s: parameter interaction: -disablewallet -> ignoring -wallet=%s\n", __func__, wallet);
79  }
80 
81  return true;
82  }
83 
84  const bool is_multiwallet = gArgs.GetArgs("-wallet").size() > 1;
85 
86  if (gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY) && gArgs.SoftSetBoolArg("-walletbroadcast", false)) {
87  LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__);
88  }
89 
90  if (gArgs.GetBoolArg("-salvagewallet", false)) {
91  if (is_multiwallet) {
92  return InitError(strprintf("%s is only allowed with a single wallet file", "-salvagewallet"));
93  }
94  // Rewrite just private keys: rescan to find transactions
95  if (gArgs.SoftSetBoolArg("-rescan", true)) {
96  LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
97  }
98  }
99 
100  bool zapwallettxes = gArgs.GetBoolArg("-zapwallettxes", false);
101  // -zapwallettxes implies dropping the mempool on startup
102  if (zapwallettxes && gArgs.SoftSetBoolArg("-persistmempool", false)) {
103  LogPrintf("%s: parameter interaction: -zapwallettxes enabled -> setting -persistmempool=0\n", __func__);
104  }
105 
106  // -zapwallettxes implies a rescan
107  if (zapwallettxes) {
108  if (is_multiwallet) {
109  return InitError(strprintf("%s is only allowed with a single wallet file", "-zapwallettxes"));
110  }
111  if (gArgs.SoftSetBoolArg("-rescan", true)) {
112  LogPrintf("%s: parameter interaction: -zapwallettxes enabled -> setting -rescan=1\n", __func__);
113  }
114  }
115 
116  if (is_multiwallet) {
117  if (gArgs.GetBoolArg("-upgradewallet", false)) {
118  return InitError(strprintf("%s is only allowed with a single wallet file", "-upgradewallet"));
119  }
120  }
121 
122  if (gArgs.GetBoolArg("-sysperms", false))
123  return InitError("-sysperms is not allowed in combination with enabled wallet functionality");
124  if (gArgs.GetArg("-prune", 0) && gArgs.GetBoolArg("-rescan", false))
125  return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again.").translated);
126 
127  return true;
128 }
129 
131 {
132  if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
133  LogPrintf("Wallet disabled!\n");
134  return;
135  }
136  gArgs.SoftSetArg("-wallet", "");
137  interfaces.chain_clients.emplace_back(interfaces::MakeWalletClient(*interfaces.chain, gArgs.GetArgs("-wallet")));
138 }
constexpr CAmount DEFAULT_TRANSACTION_MAXFEE
-maxtxfee default
Definition: wallet.h:86
bool SoftSetBoolArg(const std::string &strArg, bool fValue)
Set a boolean argument if it doesn&#39;t already have a value.
Definition: system.cpp:528
constexpr CAmount DEFAULT_PAY_TX_FEE
-paytxfee default
Definition: wallet.h:64
#define strprintf
Format arguments and return the string or write to given std::ostream (see tinyformat::format doc for...
Definition: tinyformat.h:1067
void AddWalletOptions() const override
Return the wallets help message.
Definition: init.cpp:35
void Construct(InitInterfaces &interfaces) const override
Add wallets that should be opened to list of init interfaces.
Definition: init.cpp:130
std::vector< std::unique_ptr< interfaces::ChainClient > > chain_clients
Definition: init.h:22
std::unique_ptr< ChainClient > MakeWalletClient(Chain &chain, std::vector< std::string > wallet_filenames)
Return implementation of ChainClient interface for a wallet client.
Definition: wallet.cpp:518
static void LogPrintf(const char *fmt, const Args &... args)
Definition: logging.h:144
static const bool DEFAULT_DISABLE_WALLET
Definition: wallet.h:84
const std::string CURRENCY_UNIT
Definition: feerate.cpp:10
std::string translated
Definition: translation.h:19
bool GetBoolArg(const std::string &strArg, bool fDefault) const
Return boolean argument or default value.
Definition: system.cpp:512
bool HasWalletSupport() const override
Was the wallet component compiled in.
Definition: init.cpp:21
std::string FormatMoney(const CAmount &n)
Money parsing/formatting utilities.
Definition: moneystr.cpp:12
bool SoftSetArg(const std::string &strArg, const std::string &strValue)
Set an argument if it doesn&#39;t already have a value.
Definition: system.cpp:520
static const bool DEFAULT_WALLET_RBF
-walletrbf default
Definition: wallet.h:82
static const CAmount DEFAULT_FALLBACK_FEE
-fallbackfee default
Definition: wallet.h:66
bilingual_str _(const char *psz)
Translation function.
Definition: translation.h:37
void AddArg(const std::string &name, const std::string &help, unsigned int flags, const OptionsCategory &cat)
Add argument.
Definition: system.cpp:542
static const bool DEFAULT_WALLETBROADCAST
Definition: wallet.h:83
static const bool DEFAULT_SPEND_ZEROCONF_CHANGE
Default for -spendzeroconfchange.
Definition: wallet.h:74
constexpr OutputType DEFAULT_ADDRESS_TYPE
Default for -addresstype.
Definition: wallet.h:123
static const bool DEFAULT_AVOIDPARTIALSPENDS
Default for -avoidpartialspends.
Definition: wallet.h:78
static const unsigned int DEFAULT_TX_CONFIRM_TARGET
-txconfirmtarget default
Definition: wallet.h:80
static const unsigned int DEFAULT_WALLET_DBLOGSIZE
Definition: db.h:26
const std::string & FormatOutputType(OutputType type)
Definition: outputtype.cpp:36
static const bool DEFAULT_WALLET_REJECT_LONG_CHAINS
Default for -walletrejectlongchains.
Definition: wallet.h:76
const WalletInitInterface & g_wallet_init_interface
Definition: init.cpp:33
static const CAmount DEFAULT_TRANSACTION_MINFEE
-mintxfee default
Definition: wallet.h:70
bool InitError(const std::string &str)
Show error message.
std::string GetArg(const std::string &strArg, const std::string &strDefault) const
Return string argument or default value.
Definition: system.cpp:496
static const bool DEFAULT_FLUSHWALLET
Overview of wallet database classes:
Definition: walletdb.h:33
ArgsManager gArgs
Definition: system.cpp:73
Fee rate in satoshis per kilobyte: CAmount / kB.
Definition: feerate.h:19
static const bool DEFAULT_BLOCKSONLY
Default for blocks only.
Definition: net.h:83
static const bool DEFAULT_WALLET_PRIVDB
Definition: db.h:27
std::unique_ptr< interfaces::Chain > chain
Definition: init.h:21
static const unsigned int DEFAULT_KEYPOOL_SIZE
Default for -keypool.
Definition: wallet.h:62
std::vector< std::string > GetArgs(const std::string &strArg) const
Return a vector of strings of the given argument.
Definition: system.cpp:453
bool ParameterInteraction() const override
Wallets parameter interaction.
Definition: init.cpp:74
Pointers to interfaces used during init and destroyed on shutdown.
Definition: init.h:19
static const CAmount DEFAULT_DISCARD_FEE
-discardfee default
Definition: wallet.h:68