Auto merge of #3153 - str4d:default-disable-libs, r=str4d
Disable building libzcashconsensus by default
The library is not currently a supported build artifact; it needs work in
order to build on certain platforms (e.g. MacOS), and its dependencies need to
be narrowed down (Equihash is not a requirement for validating scripts).
UdjinM6 [Wed, 2 Nov 2016 18:59:09 +0000 (21:59 +0300)]
Fix exit codes:
- `--help`, `--version` etc should exit with `0` i.e. no error ("not enough args" case should still trigger an error)
- error reading config file should exit with `1`
Slightly refactor AppInitRPC/AppInitRawTx to return standard exit codes (EXIT_FAILURE/EXIT_SUCCESS) or CONTINUE_EXECUTION (-1)
Jack Grigg [Fri, 6 Apr 2018 14:09:50 +0000 (15:09 +0100)]
Disable building libzcashconsensus by default
The library is not currently a supported build artifact; it needs work in
order to build on certain platforms (e.g. MacOS), and its dependencies need to
be narrowed down (Equihash is not a requirement for validating scripts).
Jack Grigg [Thu, 5 Apr 2018 11:07:44 +0000 (12:07 +0100)]
Set Overwinter protocol version to 170005
170004 is the protocol version for the NODE_BLOOM change, which is being
"released" in this RC. The activation height is being set in the final release,
which means that we may end up with both RC and final release versions online
when Overwinter activates. Bumping the protocol version for Overwinter enables
RC nodes to be correctly disconnected.
R E Broadley [Tue, 13 Sep 2016 02:10:22 +0000 (09:10 +0700)]
Allow filterclear messages for enabling TX relay only.
An example of where this might be useful is allowing a node to connect blocksonly during IBD but then becoming a full-node once caught up with the latest block. This might also even want to be the default behaviour since during IBD most TXs appear to be orphans, and are routinely dropped (for example when a node disconnects). Therefore, this can waste a lot of bandwidth.
Additionally, another pull could be written to stop relaying of TXs to nodes that are clearly far behind the latest block and are running a node that doesn't store many orphan TXs, such as recent versions of Bitcoin Core.
Patick Strateman [Tue, 24 Nov 2015 09:51:53 +0000 (01:51 -0800)]
Add enforcenodebloom option.
Previously peers which implement a protocol version less than NO_BLOOM_VERSION
would not be disconnected for sending a filter command, regardless of the
peerbloomfilter option.
Many node operators do not wish to provide expensive bloom filtering for SPV
clients, previously they had to cherry pick the commit which enabled the
disconnect logic.
The default should remain false until a sufficient percent of SPV clients
have updated.
Matt Corallo [Fri, 21 Aug 2015 04:15:27 +0000 (21:15 -0700)]
Add NODE_BLOOM service bit and bump protocol version
Lets nodes advertise that they offer bloom filter support explicitly.
The protocol version bump allows SPV nodes to assume that NODE_BLOOM is
set if NODE_NETWORK is set for pre-170004 nodes.
Also adds an option to turn bloom filter support off for nodes which
advertise a version number >= 170004. Nodes attempting to use bloom
filters on such protocol versions are banned, and a later upgade
should drop nodes of an older version which attempt to use bloom
filters.
Much code stolen from Peter Todd.
Zcash: Implements Zcash equivalent of BIP 111; deploys with Overwinter
Use of `sprintf` is seen as a red flag as many of its uses are insecure.
OpenBSD warns about it while compiling, and some modern platforms, e.g.
[cloudlibc from cloudabi](https://github.com/NuxiNL/cloudlibc) don't
even provide it anymore.
Although our uses of these functions are secure, it can't hurt to
replace them anyway. There are only 3 occurences left, all in the
tests.
test: Add more thorough test for dbwrapper iterators
I made a silly mistake in a database wrapper where keys
were sorted by char instead of uint8_t. As x86 char is signed
the sorting for the block index database was messed up, resulting
in a segfault due to missing records.
Add a test to catch:
- Wrong sorting
- Seeking errors
- Iteration result not complete
dbwrapper: Pass parent CDBWrapper into CDBBatch and CDBIterator
Zcash: Makes future extensions easier.
Original description (when this was introduced upstream):
Pass parent wrapper directly instead of obfuscation key. This
makes it possible for other databases which re-use this code
to use other properties from the database.
Add a namespace dbwrapper_private for private functions to be used
only in dbwrapper.h/cpp and dbwrapper_tests.
Auto merge of #3132 - str4d:2898-rewind-block-index, r=daira
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).
Jack Grigg [Thu, 15 Mar 2018 10:49:30 +0000 (11:49 +0100)]
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).
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.
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