9d312212df
As shown in GH #2608 and ("BUG/MEDIUM: proxy: fix email-alert invalid free"), simply calling free_email_alert() from free_proxy() is not the right thing to do. In this patch, we reuse proxy->email_alert.set memory space to introduce proxy->email_alert.flags in order to support 2 flags: PR_EMAIL_ALERT_SET (to mimic proxy->email_alert.set) and PR_EMAIL_ALERT_RESOLVED (set once init_email_alert() was called on the proxy to resolve email_alert.mailer pointer). Thanks to PR_EMAIL_ALERT_RESOLVED flag, free_email_alert() may now properly handle the freeing of proxy email_alert settings: if the RESOLVED flag is set, then it means the .email_alert.mailers.name parsing hint was replaced by the actual mailers pointer, thus no free should be attempted. No backport needed: as described in ("BUG/MEDIUM: proxy: fix email-alert invalid free"), this historical leak is not sensitive as it cannot be triggered during runtime.. thus given that the fix is not backport- friendly, it's not worth the trouble.
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.