We do not currently enforce that incoming peer connection does not have
remote_endpoint which is already used (either by incoming or outgoing
connection), hence already stored in slots_. If we happen to receive a
connection from such a duplicate remote_endpoint, it will eventually result in a
crash (when disconnecting) or weird behavior (when updating slot state), as a
result of an apparently matching remote_endpoint in slots_ being used by a
different connection.
It might be possible for the server code to indirect through certain
`end()` iterators. While a debug build would catch this problem with
`assert()`s, a release build would crash. If there are problems in this
area in the future, it is best to get a definitive indication of the
nature of the error regardless of whether it's a debug or release build.
To accomplish this, these `assert`s are converted into `LogicError`s
that will produce a reasonable error message when they fire.
Address issues related to the removal of `std::{u,bi}nary_function` in
C++17 and some warnings with Clang 16. Some warnings appeared with the
upgrade to Apple clang version 14.0.3 (clang-1403.0.22.14.1).
- `std::{u,bi}nary_function` were removed in C++17. They were empty
classes with a few associated types. We already have conditional code
to define the types. Just make it unconditional.
- libc++ checks a cast in an unevaluated context to see if a type
inherits from a binary function class in the standard library, e.g.
`std::equal_to`, and this causes an error when the type privately
inherits from such a class. Change these instances to public
inheritance.
- We don't need a middle-man for the empty base optimization. Prefer to
inherit directly from an empty class than from
`beast::detail::empty_base_optimization`.
- Clang warns when all the uses of a variable are removed by conditional
compilation of assertions. Add a `[[maybe_unused]]` annotation to
suppress it.
- As a drive-by clean-up, remove commented code.
See related work in #4486.
The peer discovery protocol depends on peers exchanging messages
listing IP addresses for other peers.
Under normal circumstances, these messages should not be sent
frequently; the existing code would track the earliest time a
new message should be processed, but did not actually enforce
that limit.
This commit replaces the `peers_max` configuration element which had
a predetermined split between incoming and outgoing connections with
two new configuration options, `peers_in_max` and `peers_out_max`,
which server operators can use to explicitly control the number of
incoming and outgoing peer slots.
The existing platform detection code was derived from the old Beast
library, which was, itself, derived from JUCE.
This commit removes that code and replaces it with the Boost.Predef
library which defines a consistent set of compiler, architecture,
operating system, library, and other version numbers.
For more on Boost.Predef, please see the Boost documentation. The
documentation for the current version as of this writing is at:
https://www.boost.org/doc/libs/1_71_0/doc/html/predef.html
This commit restructures the HTTP based protocol negotiation that `rippled`
executes and introduces support for negotiation of compression for peer
links which, if implemented, should result in significant bandwidth savings
for some server roles.
This commit also introduces the new `[network_id]` configuration option
that administrators can use to specify which network the server is part of
and intends to join. This makes it possible for servers from different
networks to drop the link early.
The changeset also improves the log messages generated when negotiation
of a peer link upgrade fails. In the past, no useful information would
be logged, making it more difficult for admins to troubleshoot errors.
This commit also fixes RIPD-237 and RIPD-451
This commit allows server operators to reserve slots for specific
peers (identified by the peer's public node identity) and to make
changes to the reservations while the server is operating.
This commit closes#2938
Many of the warnings on Windows were not resolved, just
silenced with _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS.
They need to be resolved in a future commit.
std::random_shuffle is deprecated in C++14 and removed completely
in C++17. The two-iterator version of std::random_shuffle usually
depends on std::rand and also on a global state. The preferred
replacement is to use std::shuffle with a pseudo-random number
generator.
Fixes: RIPD-1574
Alias beast address classes to the asio equivalents. Adjust users of
address classes accordingly. Fix resolver class so that it can support
ipv6 addresses. Make unit tests use ipv6 localhost network. Extend
endpoint peer message to support string endpoint
representations while also supporting the existing fields (both are
optional/repeated types). Expand test for Livecache and Endpoint.
Workaround some false positive ipaddr tests on windows (asio bug?)
Replaced usage of address::from_string(deprecated) with free function
make_address. Identified a remaining use of v4 address type and
replaced with the more appropriate IPEndpoint type (rpc_ip cmdline
option). Add CLI flag for using ipv4 with unit tests.
Release Notes
-------------
The optional rpc_port command line flag is deprecated. The rpc_ip
parameter now works as documented and accepts ip and port combined.
* The compiler can provide many non-explicit constructors for
aggregate types. This is sometimes desired, but it can
happen accidentally, resulting in run-time errors.
* This commit assures that no types are aggregates unless existing
code is using aggregate initialization.
Make sure statically-configured bootcache entries have at least
a reasonable minimum priority. This provides additional protection
against Sybil attacks.
Show the bootcache in the ouput of the print command.
Replace Journal public data members with member function accessors
in order to make Journal lighter weight. The change makes a
Journal cheaper to pass by value.
Also add missing stream checks (e.g., calls to JLOG) to avoid
text processing that ultimately will not be stored in the log.
The Journal API is affected. There are two uses for the
Journal::Severity enum:
o It is used to declare a threshold which log messages must meet
in order to be logged.
o It declares the current logging level which will be compared
to the threshold.
Those uses that affect the threshold are now named threshold()
rather than severity() to make the uses easier to distinguish.
Additionally, Journal no longer carries a Severity variable.
All handling of the threshold() is now delegated to the
Journal::Sink.
Sinks are no longer constructed with a default threshold of
kWarning; their threshold must be passed in on construction.
The RippleAddress class was used to represent a number of fundamentally
different types: account public keys, account secret keys, node public
keys, node secret keys, seeds and generators.
The class is replaced by the following types:
* PublicKey for account and node public keys
* SecretKey for account and node private keys
* Generator for generating secp256k1 accounts
* Seed for account, node and generator seeds
