Assume that when a wallet transaction has a valid block hash and transaction position
in it, the transaction is actually there. We're already trusting wallet data in a
much more fundamental way anyway.
To prevent backward compatibility issues, a new record is used for storing the
block locator in the wallet. Old wallets will see a wallet file synchronized up
to the genesis block, and rescan automatically.
Complete rescan is incompatible with pruning, but rescan is optional on
our wallet key import RPCs. Import on use is very useful in some common
situations in conjunction with pruning, e.g. merchant payment tracking.
This reenables importprivkey/importaddress/importpubkey when rescan
is not used.
In the future we should consider changing the rescan argument to allow depth
or date to allow limited rescanning when compatible with the retained
block depth.
d042854 SQUASH "Implement watchonly support in fundrawtransaction" (Matt Corallo)
428a898 SQUASH "Add have-pubkey distinction to ISMINE flags" (Matt Corallo)
6bdb474 Implement watchonly support in fundrawtransaction (Matt Corallo)
f5813bd Add logic to track pubkeys as watch-only, not just scripts (Matt Corallo)
d3354c5 Add have-pubkey distinction to ISMINE flags (Matt Corallo)
5c17059 Update importaddress help to push its use to script-only (Matt Corallo)
a1d7df3 Add importpubkey method to import a watch-only pubkey (Matt Corallo)
907a425 Add p2sh option to importaddress to import redeemScripts (Matt Corallo)
983d2d9 Split up importaddress into helper functions (Matt Corallo)
cfc3dd3 Also remove pay-2-pubkey from watch when adding a priv key (Matt Corallo)
Previously various user-facing strings have used inconsistent currency units "BTC",
"btc" and "bitcoins". This adds a single constant and uses it for each reference to
the currency unit.
Also adds a description of the unit for --maxtxfee, and adds the missing "amount"
field description to the (deprecated) move RPC command.
a794284 locking: add a quick example of GUARDED_BY (Cory Fields)
2b890dd locking: fix a few small issues uncovered by -Wthread-safety (Cory Fields)
cd27bba locking: teach Clang's -Wthread-safety to cope with our scoped lock macros (Cory Fields)
This indicates that, eg, we have a public key for a key which may
be used as a pay-to-pubkey-hash. It generally means that we can
create a valid scriptSig except for missing private key(s) with
which to create signatures.
CTransAction::IsEquivalentTo was introduced in #5881.
This functionality is only useful to the wallet, and should never have
been added to the primitive transaction type.
Now that the off-by-one error w/nLockTime txs issue has been fixed by
87550eef (75a4d512 in the 0.11 branch) we can make the anti-fee-sniping
protection create transactions with nLockTime set such that they're only
valid in the next block, rather than an earlier block.
There was also a concern about poor propagation, however testing with
transactions with nLockTime = GetAdjustedTime()+1 as a proxy for
nLockTime propagation, as well as a few transactions sent the moment
blocks were received, has turned up no detectable issues with
propagation. If you have a block at a given height you certainly have at
least one peer with that block who will accept the transaction. That
peer will certainly have other peers who will accept it, and soon
essentially the whole network has the transaction. In particular, if a
node recives a transaction that it rejects due to the tx being
non-final, it will be accepted again later as it winds its way around
the network.
- fixes#3136
- the problem is related to Boost path and a static initialized internal
pointer
- using a std::string in CDBEnv::EnvShutdown() prevents the problem
- this removes the boost::filesystem::path path field from CDBEnv
- rpcwallet: No need to lock twice here
- openssl: Clang doesn't understand selective lock/unlock here. Ignore it.
- CNode: Fix a legitimate (though very unlikely) locking bug.
Chance "getbalance *" not to use IsTrusted. The method and result
now match the "getbalance <specific-account>" behavior. In
particular, "getbalance * 0" now works.
Also fixed a comment -- GetGalance has required 1 confirmation
for many years, and the default "getbalance *" behavior matches
that.
- Add an accept test for zero amounts, and a reject test for negative
amounts
- Remove ugly hack in `settxfee` that is no longer necessary
- Do explicit zero checks in wallet RPC functions
- Don't add a check for zero amounts in `createrawtransaction` - this
could be seen as a feature
- implement find_value() function for UniValue
- replace all Array/Value/Object types with UniValues, remove JSON Spirit to UniValue wrapper
- remove JSON Spirit sources
Previously due to an off-by-one error the wallet ignored
nLockTime-by-height transactions that would be valid in the next block
even though they are accepted into the mempool. The transactions
wouldn't show up until confirmed, nor would they be included in the
unconfirmed balance. Similar to the mempool behavior fix in 665bdd3b,
the wallet code was calling IsFinalTx() directly without taking into
account the fact that doing so tells you if the transaction could have
been mined in the *current* block, rather than the next block.
To fix this we strip IsFinalTx() of non-consensus-critical
functionality, removing the default arguments, and add CheckFinalTx() to
check if a transaction will be final in the next block.
a8cdaf5 checkpoints: move the checkpoints enable boolean into main (Cory Fields)
11982d3 checkpoints: Decouple checkpoints from Params (Cory Fields)
6996823 checkpoints: make checkpoints a member of CChainParams (Cory Fields)
9f13a10 checkpoints: store mapCheckpoints in CCheckpointData rather than a pointer (Cory Fields)
Compute the change directly as difference between the "requested" and
the actual value returned by SelectCoins. This removes a duplication of
the fee logic code.
It's reasonable that automatic coin selection will not pick a zero
value txout, but they're actually spendable; and you should know
if you have them. Listing also makes them available to tools like
dust-b-gone.
Define CTransaction::IsEquivalentTo(const CTransaction& tx)
True if only scriptSigs are different. In other words, true if
the two transactions are malleability clones. In other words,
true if the two transactions have the same effect on the
outside universe.
In the wallet, only SyncMetaData for equivalent transactions.
This is an advanced feature which will disable any kind of automatic
transaction broadcasting in the wallet. This gives the user full control
of how the transaction is sent.
For example they can broadcast new transactions through some other
mechanism themselves, after getting the transaction hex through `gettransaction`.
This just adds the option `-walletbroadcast=<0,1>`. Right now these
transactions will get the status
Status: conflicted, has not been successfully broadcast yet
They shouldn't be shown as conflicted at all (`walletconflicts` is empty). This status
will go away when the transaction is received through the network.
Adds a regression test for the wallet's ResendWalletTransactions function, which uses a new, hidden RPC command "resendwallettransactions."
I refactored main's Broadcast signal so it is passed the best-block time, which let me remove a global variable shared between main.cpp and the wallet (nTimeBestReceived).
I also manually tested the "rebroadcast unconfirmed every half hour or so" functionality by:
1. Running bitcoind -connect=0.0.0.0:8333
2. Creating a couple of send-to-self transactions
3. Connect to a peer using -addnode
4. Waited a while, monitoring debug.log, until I see:
```2015-03-23 18:48:10 ResendWalletTransactions: rebroadcast 2 unconfirmed transactions```
One last change: don't bother putting ResendWalletTransactions messages in debug.log unless unconfirmed transactions were actually rebroadcast.
During startup, when adding pending wallet transactions, which spend outputs of
other pending wallet transactions, back to the memory pool, and when they are
added out of order, it appears as if they are orphans with missing inputs.
Those transactions are then rejected and flagged as "conflicting" (= not in the
memory pool, not in the block chain).
To prevent this, transactions are explicitly sorted.
