f5b09dc452
There exist two sorts of token used by QUIC. They are both used to validate the peer address (path validation). Retry are used for the current connection the client want to open. This patch implement the other sort of tokens which after having been received from a connection, may be provided for the next connection from the same IP address to validate it (or validate the network path between the client and the server). The token generation is implemented by quic_generate_token(), and the token validation by quic_token_chek(). The same method is used as for Retry tokens to build such tokens to be reused for future connections. The format is very simple: one byte for the format identifier to distinguish these new tokens for the Retry token, followed by a 32bits timestamps. As this part is ciphered with AEAD as cryptographic algorithm, 16 bytes are needed for the AEAD tag. 16 more random bytes are added to this token and a salt to derive the AEAD secret used to cipher the token. In addition to this salt, this is the client IP address which is used also as AAD to derive the AEAD secret. So, the length of the token is fixed: 37 bytes.
HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
Please refer to the following files depending on what you're looking for:
- INSTALL for instructions on how to build and install HAProxy
- BRANCHES to understand the project's life cycle and what version to use
- LICENSE for the project's license
- CONTRIBUTING for the process to follow to submit contributions
The more detailed documentation is located into the doc/ directory:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.