Add funding streams to consensus parameters.
Add funding stream payments to coinbase txns generated by the miner.
* Reduce valueBalance for shielded outputs to funding streams.
* Ensure we produce binding signatures in any case where shielded
outputs go to either a funding stream or the miner.
metrics: Add a progress bar when in Initial Block Download mode
The progress bar shows both headers (in green) and blocks (in white / inverse of background colour). It is only printed for TTY output.
Additionally, the "not mining" message is no longer shown on mainnet, as the built-in CPU miner is not effective at the current network difficulty.
This patch adds an option to configure the name and/or directory of the
debug log.
The user can specify either a relative path, in which case the path
is relative to the data directory. They can also specify an absolute
path to put the log anywhere else in the file system.
Report headers download
With current compile-time defaults, a Zcash node prefetches up to 160 block headers per request without a limit on how far it can prefetch, but only up to 16 full blocks at a time. For this and other reasons, it can get very far ahead in headers prefetch (and PoW verification on those, so it's quite some processing too) over full blocks fetch (such as 10x ahead) during initial blocks download. Let's report to the user on how many headers the node has fetched, and let's also use this information as additional input on estimating the total number of blocks to fetch: it can't be less than the number of headers already fetched.
While at it, also fix typos in related code.
Add options and help to AFL scripts
Closes https://github.com/zcash/zcash/issues/4315
For reference here is how the help of each command is script:
**afl-get.sh**:
```
$ ./zcutil/afl/afl-get.sh --help
Obtains and builds a copy of AFL from source.
Usage:
./zcutil/afl/afl-get.sh --afl-install=AFL_INSTALL_DIR
OPTIONS:
-h, --help Print this help message
-i, --afl-install Directory where AFL is going to be installed
EXAMPLE:
./zcutil/afl/afl-get.sh -i /tmp/afl
$
```
**afl-build.sh**:
```
$ ./zcutil/afl/afl-build.sh --help
A wrapper around ./zcutil/build.sh for instrumenting the build with AFL.
You may obtain a copy of AFL using ./zcutil/afl/afl-get.sh.
Additional arguments are passed-through to build.sh.
Usage:
./zcutil/afl/afl-build.sh --afl-install=AFL_INSTALL_DIR --fuzz-case=FUZZ_CASE [ OPTIONS ... ] [ ARGUMENTS ... ]
OPTIONS:
-a, --harden Turn off AFL_HARDEN. Default: 1
-c, --configure-flags Pass this flags to ./configure. Default: --enable-tests=no --enable-fuzz-main
-f, --fuzz-case Options are: CheckBlock, DecodeHexTx, DeserializeAddrMan, DeserializeTx or ReadFeeEstimates
-h, --help Print this help message
-l, --afl-log Directory to save AFL logs. Default: /home/oxarbitrage/zcash/zcash4/zcash
-i, --afl-install Directory where AFL is installed
-z, --zcutil The zcutil directory. Default /home/oxarbitrage/zcash/zcash4/zcash/zcutil
ARGUMENTS:
By default we are passing to build.sh the following flags:
CC=/home/oxarbitrage/zcash/zcash4/zcash/zcutil/afl/zcash-wrapper-gcc
CXX=/home/oxarbitrage/zcash/zcash4/zcash/zcutil/afl/zcash-wrapper-g++
EXAMPLE:
./zcutil/afl/afl-build.sh -i /tmp/afl -f DecodeHexTx
$
```
**afl-run.sh**:
```
$ ./zcutil/afl/afl-run.sh --help
Start fuzzing a case in a previously zcashd built for AFL.
Additional arguments are passed-through to AFL.
Usage:
./zcutil/afl/afl-run.sh --afl-install=AFL_INSTALL_DIR --fuzz-case=FUZZ_CASE [ ARGUMENTS... ]
OPTIONS:
-f, --fuzz-case Options are: CheckBlock, DecodeHexTx, DeserializeAddrMan, DeserializeTx or ReadFeeEstimates
-h, --help Print this help message
-i, --afl-install Directory where AFL is installed
EXAMPLE:
./zcutil/afl/afl-run.sh -i /tmp/afl -f DecodeHexTx
$
```
**afl-getbuildrun.sh**:
```
$ ./zcutil/afl/afl-getbuildrun.sh --help
Builds AFL and an instrumented zcashd, then begins fuzzing.
This script must be run from within the top level directory of a zcash clone.
Additional arguments are passed-through to AFL.
Usage:
./zcutil/afl/afl-getbuildrun.sh --fuzz-case=FUZZ_CASE [ OPTIONS ... ] [ ARGUMENTS... ]
OPTIONS:
-f, --fuzz-case Options are: CheckBlock, DecodeHexTx, DeserializeAddrMan, DeserializeTx or ReadFeeEstimates
-h, --help Print this help message
-i, --afl-install Directory where AFL is installed. Default: /home/oxarbitrage/zcash/zcash4/zcash/afl-temp
EXAMPLE:
./zcutil/afl/afl-getbuildrun.sh -f DecodeHexTx
$
```
Use the cached consensusBranchId in DisconnectBlock
If a node is started with a set of network upgrades that don't match the
serialized chain (such as when we implement NU rollbacks on testnet),
RewindBlockIndex will disconnect each block in the chain until it
reaches the most recent block that agrees with the node's set of network
upgrades. However, the blocks themselves should be disconnected using
the consensus branch ID that they were connected with, which is
persisted alongside the chain and reconstructed in LoadBlockIndex.
Kris Nuttycombe
Kris Nuttycombe
Jack Grigg
Homu
Daira Hopwood
Alfredo Garcia
Anthony Towns
Wladimir J. van der Laan
Solar Designer
mdr0id
Eirik Ogilvie-Wigley