3.28.1

Highlights

• http: add support for proxy option

  Example:

  log {
     source { system(); };
     destination { http( url("SYSLOG_SERVER_IP:PORT") proxy("PROXY_IP:PORT") method("POST") ); };
  };
  

  (#3253)

Features

• map: template function

  This template function applies a function to all elements of a list. For example: $(map $(+ 1 $_) 0,1,2) => 1,2,3.
  (#3301)

• use-syslogng-pid(): new option to all sources

  If set to yes, syslog-ng overwrites the message's ${PID} macro to its own PID.
  (#3323)

Bugfixes

• affile: eliminate infinite loop in case of a spurious file path

  If the template evaluation of a log message will result to a spurious
  path in the file destination, syslog-ng refuses to create that file.
  However the problematic log message was left in the msg queue, so
  syslog-ng was trying to create that file again in time-reopen periods.
  >From now on syslog-ng will handle "permanent" file errors, and drop
  the relevant msg.
  (#3230)

• Fix minor memory leaks in error scenarios
  (#3265)

• crypto: fix hang on boot due to lack of entropy
  (#3271)

• Fix IPv4 UDP destinations on FreeBSD

  UDP-based destinations crashed when receiving the first message on FreeBSD due
  to a bug in destination IP extraction logic.
  (#3278)

• network sources: fix TLS connection closure

  RFC 5425 specifies that once the transport receiver gets close_notify from the
  transport sender, it MUST reply with a close_notify.

  The close_notify alert is now sent back correctly in case of TLS network sources.
  (#2811)

• disk-buffer: fixes possible crash, or fetching wrong value for logmsg nvpair
  (#3281)

• packaging/debian: fix mod-rdkafka Debian packaging
  (#3282)

• kafka destination: destination halts if consumer is down, and kafka's queue is filled
  (#3305)

• file-source: Throw error, when follow-freq() is set with a negative float number.
  (#3306)

• stats-freq: with high stats-freq syslog-ng emits stats immediately causing high memory and CPU usage
  (#3320)

• secure-logging: bug fixes (#3284)

  • template arguments are now consistently checked
  • fixed errors when mac file not provided
  • fixed abort when derived key not provided
  • fixed crash with slogkey missing parameters
  • fixed secure-logging on 32-bit architectures
  • fixed CMake build

Other changes

• dbld: Fedora 32 support (#3315)
• dbld: Removed Ubuntu Eoan (#3313)
• secure-logging: improvements (#3284)
  • removed 1500 message length limitation
  • slogimport has been renamed to slogencrypt
  • $(slog) will not start anymore when key is not found
  • internal messaging (warning, debug) improvements
  • improved memory handling and error information display
  • CMake build improvements
  • switched to GLib command line argument parsing
  • the output of slogkey -s is now parsable
  • manpage improvements

Notes to developers

• dbld: devshell is now upgraded to Ubuntu Focal
  (#3277)
• dbld/devshell: Multiple changes:
  • Added snmptrapd package.
  • Added support for both python2 and python3.
    (#3222)
• threaded-source: fully support default-priority() and default-facility()
  (#3304)
• CMake: fix libcap detection
  (#3294)
• Fix atomic_gssize_set() warning with new glib versions
  (#3286)

Credits

syslog-ng is developed as a community project, and as such it relies
on volunteers, to do the work necessarily to produce syslog-ng.

Reporting bugs, testing changes, writing code or simply providing
feedback are all important contributions, so please if you are a user
of syslog-ng, contribute.

We would like to thank the following people for their contribution:

Airbus Commercial Aircraft, Andras Mitzki, Antal Nemes, Attila Szakacs,
Balazs Scheidler, Gabor Nagy, Laszlo Budai, Laszlo Szemere, László Várady,
Péter Kókai, Vatsal Sisodiya, Vivin Peris.