12 Commits

Author SHA1 Message Date
stasatdaglabs
f46dec449d [NOD-510] Change all references to Bitcoin to Kaspa (#531)
* [NOD-510] Change coinbase flags to kaspad.

* [NOD-510] Removed superfluous spaces after periods in comments.

* [NOD-510] Rename btcd -> kaspad in the root folder.

* [NOD-510] Rename BtcEncode -> KaspaEncode and BtcDecode -> KaspaDecode.

* [NOD-510] Rename BtcEncode -> KaspaEncode and BtcDecode -> KaspaDecode.

* [NOD-510] Continue renaming btcd -> kaspad.

* [NOD-510] Rename btcjson -> kaspajson.

* [NOD-510] Rename file names inside kaspajson.

* [NOD-510] Rename kaspajson -> jsonrpc.

* [NOD-510] Finish renaming in addrmgr.

* [NOD-510] Rename package btcec to ecc.

* [NOD-510] Finish renaming stuff in blockdag.

* [NOD-510] Rename stuff in cmd.

* [NOD-510] Rename stuff in config.

* [NOD-510] Rename stuff in connmgr.

* [NOD-510] Rename stuff in dagconfig.

* [NOD-510] Rename stuff in database.

* [NOD-510] Rename stuff in docker.

* [NOD-510] Rename stuff in integration.

* [NOD-510] Rename jsonrpc to rpcmodel.

* [NOD-510] Rename stuff in limits.

* [NOD-510] Rename stuff in logger.

* [NOD-510] Rename stuff in mempool.

* [NOD-510] Rename stuff in mining.

* [NOD-510] Rename stuff in netsync.

* [NOD-510] Rename stuff in peer.

* [NOD-510] Rename stuff in release.

* [NOD-510] Rename stuff in rpcclient.

* [NOD-510] Rename stuff in server.

* [NOD-510] Rename stuff in signal.

* [NOD-510] Rename stuff in txscript.

* [NOD-510] Rename stuff in util.

* [NOD-510] Rename stuff in wire.

* [NOD-510] Fix failing tests.

* [NOD-510] Fix merge errors.

* [NOD-510] Fix go vet errors.

* [NOD-510] Remove merged file that's no longer relevant.

* [NOD-510] Add a comment above Op0.

* [NOD-510] Fix some comments referencing Bitcoin Core.

* [NOD-510] Fix some more comments referencing Bitcoin Core.

* [NOD-510] Fix bitcoin -> kaspa.

* [NOD-510] Fix more bitcoin -> kaspa.

* [NOD-510] Fix comments, remove DisconnectBlock in addrindex.

* [NOD-510] Rename KSPD to KASD.

* [NOD-510] Fix comments and user agent.
2019-12-12 15:21:41 +02:00
Ori Newman
b4b71eec01 [DEV-98] Move script flags from relay rules to consensus (#49)
* [DEV-98] Move script flags from relay rules to consensus

* [DEV-98] remove flags from script_tests.json

* [DEV-98] fix multisig and remove test that assume no minimal data rule

* [DEV-98] rename bip16 bool to isP2sh

* [DEV-98] add sighash type to overly long signature in script_tests.json

* [DEV-98] add test for NUMEQUAL for non equal numbers script_tests.json

* [DEV-98] remove debugging if

* [DEV-98] remove ErrCleanStack from EVAL_FALSE

* [DEV-98] change isP2sh to isP2SH to comply with Go style

* [DEV-98] add ScriptNoFlags to explictly indicate for empty ScriptFlags

* [DEV-98] rename ErrPubKeyType -> ErrPubKeyFormat

* [DEV-98] rename PUBKEYTYPE -> PUBKEYFORMAT
2018-08-23 17:45:49 +03:00
Dave Collins
efa50e6abc
multi: Simplify code per gosimple linter.
This simplifies the code based on the recommendations of the gosimple
lint tool.

Also, it increases the deadline for the linters to run to 10 minutes and
reduces the number of threads that is uses. This is being done because
the Travis environment has become increasingly slower and it also seems
to be hampered by too many threads running concurrently.
2017-03-22 15:34:13 -05:00
Dave Collins
fdc2bc867b
txscript: Significantly improve errors.
This converts the majority of script errors from generic errors created
via errors.New and fmt.Errorf to use a concrete type that implements the
error interface with an error code and description.

This allows callers to programmatically detect the type of error via
type assertions and an error code while still allowing the errors to
provide more context.

For example, instead of just having an error the reads "disabled opcode"
as would happen prior to these changes when a disabled opcode is
encountered, the error will now read "attempt to execute disabled opcode
OP_FOO".

While it was previously possible to programmatically detect many errors
due to them being exported, they provided no additional context and
there were also various instances that were just returning errors
created on the spot which callers could not reliably detect without
resorting to looking at the actual error message, which is nearly always
bad practice.

Also, while here, export the MaxStackSize and MaxScriptSize constants
since they can be useful for consumers of the package and perform some
minor cleanup of some of the tests.
2017-01-12 13:12:39 -06:00
David Hill
ce22159fb2 txscript: Change makeScriptNum to take a length argument
While current existing numeric opcodes are limited to 4 bytes, new
opcodes may need different limits.

This mimics Bitcoin Core commit 99088d60d8a7747c6d1a7fd5d8cd388be1b3e138
2015-10-05 19:48:55 -04:00
Dave Collins
edc0d15882 txscript: Consensus audit.
This commit contains fixes from the results of a thorough audit of
txscript to find any cases of script evaluation which doesn't match the
required consensus behavior.  These conditions are fairly obscure and
highly unlikely to happen in any real scripts, but they could have
nevertheless been used by a clever attacker with malicious intent to
cause a fork.

Test cases which exercise these conditions have been added to the
reference tests and will contributed upstream to improve the quality for
the entire ecosystem.
2015-05-06 09:41:50 -05:00
Dave Collins
b6e52fbd93 txscript: Convert to new scriptnum type.
This commit implements a new type, named scriptNum, for handling all
numeric values used in scripts and converts the code over to make use of
it.  This is being done for a few of reasons.

First, the consensus rules for handling numeric values in the scripts
require special handling with subtle semantics.  By encapsulating those
details into a type specifically dedicated to that purpose, it
simplifies the code and generally helps prevent improper usage.

Second, the new type is quite a bit more efficient than big.Ints which
are designed to be arbitrarily large and thus involve a lot of heap
allocations and additional multi-precision bookkeeping.  Because this
new type is based on an int64, it allows the numbers to be stack
allocated thereby eliminating a lot of GC and also eliminates the extra
multi-precision arithmetic bookkeeping.

The use of an int64 is possible because the consensus rules dictate that
when data is interpreted as a number, it is limited to an int32 even
though results outside of this range are allowed so long as they are not
interpreted as integers again themselves.   Thus, the maximum possible
result comes from multiplying a max int32 by itself which safely fits
into an int64 and can then still appropriately provide the serialization
of the larger number as required by consensus.

Finally, it more closely resembles the implementation used by Bitcoin
Core and thus makes is easier to compare the behavior between the two
implementations.

This commit also includes a full suite of tests with 100% coverage of
the semantics of the new type.
2015-05-01 13:15:08 -05:00
Dave Collins
6e402deb35 Relicense to the btcsuite developers.
This commit relicenses all code in this repository to the btcsuite
developers.
2015-05-01 12:00:56 -05:00
Dave Collins
a8fe1ad5fe txscript: Code consistency and doco improvements.
This commit contains a lot of cleanup on the txscript code to make it
more consistent with the code throughout the rest of the project.  It
doesn't change any operational logic.

The following is an overview of the changes:

- Add a significant number of comments throughout in order to better
  explain what the code is doing
- Fix several comment typos
- Move a couple of constants only used by the engine to engine.go
- Move a variable only used by the engine to engine.go
- Fix a couple of format specifiers in the test prints
- Reorder functions so they're defined before/closer to use
- Make the code lint clean with the exception of the opcode definitions
2015-04-29 13:16:22 -05:00
Dave Collins
7411e65b1e txscript: Unexport Stack type.
This commit unexports the Stack type since it is only intended to be
used internally during script execution.  Further, the engine exposes
the {G,S}etStack and {G,S}etAltStack functions which return the items as
a slice of byte slices ([][]byte) for caller access while stepping.
2015-04-25 17:10:53 -05:00
David Hill
5a4312d9ca txscript: Add new flag ScriptVerifyMinimalData
The ScriptVerifyMinimalData enforces that all push operations use the
minimal data push required.  This is part of BIP0062.

This commit mimics Bitcoin Core commit
698c6abb25c1fbbc7fa4ba46b60e9f17d97332ef
2015-02-24 18:06:20 -05:00
Dave Collins
cbda064842 Import btcscript repo into txscript directory.
This commit contains the entire btcscript repository along with several
changes needed to move all of the files into the txscript directory in
order to prepare it for merging.  This does NOT update btcd or any of the
other packages to use the new location as that will be done separately.

- All import paths in the old btcscript test files have been changed to the
  new location
- All references to btcscript as the package name have been chagned to
  txscript

This is ongoing work toward #214.
2015-01-30 10:30:16 -06:00