When responding to "mempool" message, do not include the txid of an
expiring soon transaction in the "inv" message reply.
When responding to "getdata" message, do not reply with a "tx" message
for a transaction which is expiring soon.
Don't accept transactions which are about to expire (next 3 blocks).
Don't set a ban score if a peer does propragate these transactions.
See ZEC-013 for more detail.
Load sapling chain value into memory
`CBlockIndex::nSaplingValue` has been correctly set and written to disk since before Sapling activated, meaning that all nodes now are correctly tracking the Sapling shielded pool value on-disk. However, on restart the per-block values are not being read into memory, and so the in-memory pool value appears to be zero on every restart. Setting `nSaplingValue` in-memory during block index loading fixes the problem.
3604 fix sapling default memo - 0xF6 plus zeros
Closes#3604. For Sapling outputs, set the default memo to `no_memo` instead of all zeros. (See section 5.5 of the Sapling protocol specification.)
Better error message when sending to both sprout and sapling
When trying to send to both Sprout and Sapling (not currently supported with z_sendmany) we were getting the following error in our operation result: `general exception: boost::bad_get: failed value get using boost::get`.
This PR changes this to fail with a better error message before the async operation begins:
```
error code: -8
error message:
Cannot send to both Sprout and Sapling addresses using z_sendmany
```
Fix signing raw transactions with unsynced offline nodes
This PR address the issue in two different ways:
- In `signrawtransaction` we determine the consensus branch ID (which we then later use to construct the transaction) using the chain height. We now also consider the `APPROX_RELEASE_HEIGHT` as this is a better estimation than 0 for the height of the chain if we are unsynced. (This in and of itself solves the Overwinter signing issue).
- We have added an additional parameter to `signrawtransaction` to allow manually overriding the consensus branch ID that zcashd determines we are on. This allows users to work around corner cases where the first strategy is still insufficient.
Closes#3327.
Rpc test cleanup
The main purpose of this PR was to inline the method 'wait_for_async_operation_id' from util.py in tests where we were doing this manually. To make it work in all cases, I had to change the method to return the result in the case where the call failed. I also did a bit of general clean up (removing semicolons) in the files which I changed.
Sapling keys generated from the seed are not yet persisted, so we don't
want to persist the seed or chain state either, otherwise the wallet
could end up in an inconsistent state.
Some tests are temporarily disabled because commenting out HDSeed
persistence breaks invariants inside CCryptoKeyStore.
Revert this commit during the PR for #3388.
generalize mininode.py protocol versioning
Fixes#2982 -- replace `overwintered` boolean argument to NodeConn constructor with a protocol version integer, so that adding Sapling (and beyond) will be easier.
Fix absurd fee bug reported in #3281, with tests
This was ported from the Hush `absurd_fee_bug` PR: https://github.com/MyHush/hush/pull/136
Tests executed with `./qa/pull-tester/rpc-tests.sh wallet` and pass on Ubuntu 16.04. Some tests were added for previously untested behavior as well.
Closes#3281.
Add change indicator
This adds to the json returned when calling z_listreceivedbyaddress and z_listuspent an additional field entitiled 'change' which will be either true or false depending on whether or not the note was change from another transaction.
(rpc-test) accurately account for fee without rounding error
Fix for #2807, this test compares balances after doing key exports and imports, and expects these balances to be equal. But they are not exactly equal due to transaction fees, so the test makes them "equal" by rounding a value that has had fees taken out up to the nearest hundredth of a unit (which is much more than the default fee). This obviously is somewhat sloppy. It also converts a balance to float, which really should never be used due to loss of precision (use Decimal instead).
This change makes the test accurately account for the fee using precise comparisons, and removes the use of float. This test doesn't depend on the default fee (0.0001) but instead sets the fee (to that value). This way, if the default fee changes in the future, this test will continue to run. While testing these changes, I set the fee to various values (up to the max, 0.0190), and the test still passes.
These changes decode valid SIGHASH types on signatures in assembly (asm) representations of scriptSig scripts.
This squashed commit incorporates substantial helpful feedback from jtimon, laanwj, and sipa.
When rewinding, remove insufficiently-validated blocks
If a block is insufficiently-validated against a particular branch ID, then we
cannot guarantee that even the block header will be valid under the actual
consensus rules the node will want to apply. Instead require that the blocks are
completely re-validated, by removing them from the block index (which is
equivalent to reducing their validity to BLOCK_VALID_UNKNOWN).
Closes#3100.
Return JoinSplit and JoinSplitOutput indexes in z_listreceivedbyaddress
This implements a feature request by @nathan-at-least in https://github.com/zcash/zcash/issues/2932 and I wanted to ask for feedback about the exact form of the data returned before updating tests and docs.
Add Note Locking to z_mergetoaddress
Adds note locking to `z_mergetoaddress` allowing it to be invoked multiple times before previous `z_mergetoaddress` operations have finished.
Reference issue [#3046](https://github.com/zcash/zcash/issues/3046)
Co-authored-by: Eirik Ogilvie-Wigley <eirik@z.cash>
Ignore -mempooltxinputlimit once Overwinter activates
Overwinter changes the SignatureHash function to solve the quadratic hashing problem, so this option will no longer be needed.
Eirik0
Daira Hopwood
Simon
Jack Grigg
Homu
mdr0id
Jonathan "Duke" Leto
Larry Ruane
arielgabizon
Jay Graber
Larry Ruane
Daniel Cousens
Duke Leto
mruddy
Jonas Schnelli
Pieter Wuille
James O'Beirne