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HAProxy - Load balancer
677fdfe126
Some strdup() failures in parse_resolve_conf() do not release everything
due to the way the function is built, resulting in leaks on error that are
caught by ASAN:
Direct leak of 304 byte(s) in 1 object(s) allocated from:
#0 0x7fe74231ea23 in calloc (/usr/lib64/libasan.so.8+0x11ea23)
#1 0x000000af1681 in dns_dgram_init src/dns.c:468
#2 0x00000091cbbf in parse_resolve_conf src/resolvers.c:3559
#3 0x00000092179e in cfg_parse_resolvers src/resolvers.c:3815
#4 0x00000089d33e in parse_cfg src/cfgparse.c:2202
#5 0x0000009e0a39 in read_cfg src/haproxy.c:1142
#6 0x000000447e8c in main src/haproxy.c:3474
#7 0x7fe74162ad13 in __libc_start_call_main (/lib64/libc.so.6+0x2ad13)
#8 0x7ffc0a43e31f ([stack]+0x2031f)
Indirect leak of 131080 byte(s) in 1 object(s) allocated from:
#0 0x7fe74231f0ab in malloc (/usr/lib64/libasan.so.8+0x11f0ab)
#1 0x000000c73e19 in dns_ring_new src/dns_ring.c:59
#2 0x000000af1848 in dns_dgram_init src/dns.c:480
#3 0x00000091cbbf in parse_resolve_conf src/resolvers.c:3559
#4 0x00000092179e in cfg_parse_resolvers src/resolvers.c:3815
#5 0x00000089d33e in parse_cfg src/cfgparse.c:2202
#6 0x0000009e0a39 in read_cfg src/haproxy.c:1142
#7 0x000000447e8c in main src/haproxy.c:3474
#8 0x7fe74162ad13 in __libc_start_call_main (/lib64/libc.so.6+0x2ad13)
#9 0x7ffc0a43e31f ([stack]+0x2031f)
Indirect leak of 64 byte(s) in 1 object(s) allocated from:
#0 0x7fe74231f0ab in malloc (/usr/lib64/libasan.so.8+0x11f0ab)
#1 0x000000c73e09 in dns_ring_new src/dns_ring.c:55
#2 0x000000af1848 in dns_dgram_init src/dns.c:480
#3 0x00000091cbbf in parse_resolve_conf src/resolvers.c:3559
#4 0x00000092179e in cfg_parse_resolvers src/resolvers.c:3815
#5 0x00000089d33e in parse_cfg src/cfgparse.c:2202
#6 0x0000009e0a39 in read_cfg src/haproxy.c:1142
#7 0x000000447e8c in main src/haproxy.c:3474
#8 0x7fe74162ad13 in __libc_start_call_main (/lib64/libc.so.6+0x2ad13)
#9 0x7ffc0a43e31f ([stack]+0x2031f)
SUMMARY: AddressSanitizer: 131448 byte(s) leaked in 3 allocation(s).
Let's free the dgram and the dns ring. This can be backported though it's
not important as it only happens on OOM condition during boot.
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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.