Change suggested by Cory Fields <cory-nospam-@coryfields.com> who noticed
listsinceblock would ignore invalid block hashes causing it to return a
completely unfiltered list of transactions.
Make sure wallet databases have unique fileids. If they don't, throw an error.
BDB caches do not work properly when more than one open database has the same
fileid, because values written to one database may show up in reads to other
databases.
Bitcoin will never create different databases with the same fileid, but users
can create them by manually copying database files.
BDB caching bug was reported by Chris Moore <dooglus@gmail.com>
https://github.com/bitcoin/bitcoin/issues/11429Fixes#11429
Now using a std::unique_ptr, the Db instance is correctly released
when CDB initialization fails.
The internal CDB state and mapFileUseCount are only mutated when
the CDB initialization succeeds.
This avoid calling out to mempool state during coin selection,
balance calculation, etc. In the next commit we ensure all wallet
callbacks from CValidationInterface happen in the same queue,
serialized with each other. This helps to avoid re-introducing one
of the issues described in #9584 [1] by further disconnecting
wallet from current chain/mempool state.
Thanks to @morcos for the suggestion to do this.
Note that there are several race conditions introduced here:
* If a user calls sendrawtransaction from RPC, adding a
transaction which is "trusted" (ie from them) and pays them
change, it may not be immediately used by coin selection until
the notification callbacks finish running. No such race is
introduced in normal transaction-sending RPCs as this case is
explicitly handled.
* Until Block{Connected,Disconnected} and
TransactionAddedToMempool calls also run in the CSceduler
background thread, there is a race where
TransactionAddedToMempool might be called after a
Block{Connected,Disconnected} call happens.
* Wallet will write a new best chain from the SetBestChain
callback prior to having processed the transaction from that
block.
[1] "you could go to select coins, need to use 0-conf change, but
such 0-conf change may have been included in a block who's
callbacks have not yet been processed - resulting in thinking they
are not in mempool and, thus, not selectable."
This prevents the wallet-RPCs-return-stale-info issue from being
re-introduced when new-block callbacks no longer happen in the
block-connection cs_main lock
Fixes#11462. Updated documentation for importprivkey function to use the correct name for the first argument.
Also updates a call to importprivkey to use named args in functional test.
Prevent arbitrary files from being overwritten. There have been reports
that users have overwritten wallet files this way. It may also avoid
other security issues.
Fixes#9934. Adds mention to release notes and adds a test.
Use C++11's better capability of expressing an interface of a non-copyable class by publicly deleting its copy ctor and assignment operator instead of just declaring them private.
Combine fLimitFree and fOverrideMempoolLimit into a single boolean:
bypass_limits. This is used to indicate that mempool limiting based on feerate
should be bypassed. It is used when readding transactions from a reorg and then
the mempool is trimmed to size after all transactions are added and they can be
evaluated in the context of their descendants. No changes to behavior.
Rationale:
- this init function can now open multiple wallets (hence
Wallet->Wallets)
- This is named as the antonym to CloseWallets(), which carries out the
opposite action.
This patch removes the need for the intermediary Base58 type
CBitcoinAddress, by providing {Encode,Decode,IsValid}Destination
function that directly operate on the conversion between strings
and CTxDestination.
1. The RPC help text should use the constant CURRENCY_UNIT defined in
policy/feerate.cpp instead of the literal 'BTC'. In the following
2 RPC commands, 'BTC' is written directly in the help text.
1) estimatesmartfee
2) estimaterawfee
And also, for these help strings, the notation
'fee-per-kilobyte (in BTC)' is somewhat ambiguous.
To write more precisely, this commit changes to 'fee rate in BTC/kB'
with using the constant CURRENCY_UNIT.
2. Some RPC command use 'satoshis' as the unit. It should be written
as 'satoshis' instead of 'Satoshis' in the RPC help text.
So, this commit fixes this typo in getblocktemplate.
3. The phrase that '... feerate (BTC per KB) ...' is used to explain
the fee rate in the help text of following 2 RPC commands.
1) getmempoolinfo
2) fundrawtransaction
But they are different from other similar help text of the RPCs.
And also, 'KB' implies Kibibyte (2^10 byte).
To unify and to clarify, this commit changes these phrase to
'... fee rate in BTC/kB ...'.
(BTC references the constant 'CURRENCY_UNIT')
Replace witness-stripped wallet transactions with full transactions;
this can happen when upgrading from a pre-segwit wallet to a segwit-
aware wallet.
This contains most of the changes of 10563 "remove safe mode", but doesn't
remove the safe mode yet, but put an `ObserveSafeMode()` check in
individual calls with okSafeMode=false.
This cleans up the ugly "okSafeMode" flag from the dispatch tables,
which is not a concern for the RPC server.
Extra-author: Wladimir J. van der Laan <laanwj@gmail.com>
Karl-Johan Alm