Commit Graph

9 Commits

Author SHA1 Message Date
Peng Wang
7e97bfce10 Implement ledger forward replay 2021-01-25 18:49:49 -08:00
Gregory Tsipenyuk
74d96ff4bd Add experimental validation & proposal relay reduction support:
- Add validation/proposal reduce-relay feature negotiation to
  the handshake
- Make squelch duration proportional to a number of peers that
  can be squelched
- Refactor makeRequest()/makeResponse() to facilitate handshake
  unit-testing
- Fix compression enable flag for inbound peer
- Fix compression algorithm parsing in the header parser
- Fix squelch duration in onMessage(TMSquelch)

This commit fixes 3624, fixes 3639 and fixes 3641
2021-01-09 13:49:40 -08:00
Edward Hennis
4b9d3ca7de Support UNLs with future effective dates:
* Creates a version 2 of the UNL file format allowing publishers to
  pre-publish the next UNL while the current one is still valid.
* Version 1 of the UNL file format is still valid and backward
  compatible.
* Also causes rippled to lock down if it has no valid UNLs, similar to
  being amendment blocked, except reversible.
* Resolves #3548
* Resolves #3470
2021-01-08 12:35:08 -05:00
Nik Bougalis
f072469409 Simplify & modernize code:
- Simplify and consolidate code for parsing hex input.
- Replace beast::endian::order with boost::endian::order.
- Simplify CountedObject code.
- Remove pre-C++17 workarounds in favor of C++17 based solutions.
- Improve `base_uint` and simplify its hex-parsing interface by
  consolidating the `SexHex` and `SetHexExact` methods into one
  API: `parseHex` which forces callers to verify the result of
  the operation; as a result some public-facing API endpoints
  may now return errors when passed values that were previously
  accepted.
- Remove the simple fallback implementations of SHA2 and RIPEMD
  introduced to reduce our dependency on OpenSSL. The code is
  slow and rarely, if ever, exercised and we rely on OpenSSL
  functionality for Boost.ASIO as well.
2020-12-04 12:45:12 -08:00
Nik Bougalis
ab77444fa3 Simplify SHAMapNodeID:
The existing SHAMapNodeID object has both a valid and an invalid state
and requirs callers to verify the state of an instance prior to using
it. A simple set of changes removes that restriction and ensures that
all instances are valid, making the code more robust.

This change also:

1. Introduces a new function to construct a SHAMapNodeID from a
   serialized blob; and
2. Reduces the amount of constructors the class exposes.
2020-12-04 12:45:11 -08:00
Nik Bougalis
85fc1e8235 Remove legacy support for endpoint dissemination:
Support for IPv6 messages was added with commit 08382d866b
and version 1.1.0. No peer presently connected to the network in a useful capacity fails
to understand v2 messages.

This commit removes the code that generates and processes v1 messages and deletes legacy
messages from the protocol buffer definition file.
2020-09-01 16:39:00 -07:00
Nik Bougalis
fe9922d654 Improve compression support:
* Optimize parsing of compressed message headers
* Enforce protocol-defined message size maxima
* Update comments
2020-06-25 19:46:43 -07:00
Pretty Printer
50760c6935 Format first-party source according to .clang-format 2020-04-23 10:02:04 -07:00
Gregory Tsipenyuk
758a3792eb Add protocol message compression support:
* Peers negotiate compression via HTTP Header "X-Offer-Compression: lz4"
* Messages greater than 70 bytes and protocol type messages MANIFESTS,
  ENDPOINTS, TRANSACTION, GET_LEDGER, LEDGER_DATA, GET_OBJECT,
  and VALIDATORLIST are compressed
* If the compressed message is larger than the uncompressed message
  then the uncompressed message is sent
* Compression flag and the compression algorithm type are included
  in the message header
* Only LZ4 block compression is currently supported
2020-04-06 17:22:59 -07:00