212 lines
9.7 KiB
Markdown
212 lines
9.7 KiB
Markdown
Change Log
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==========
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All relevant changes to the project are documented in this file.
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[v2.0][] - 2019-11-15
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---------------------
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This release represents a major refresh of the sysklogd project. The
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venerable syslogd gets an infusion of new blood from NetBSD and FreeBSD
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to fully support RFC3164 and RFC5424. Also included is a user library
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and a replacement for `syslog.h` to enable new features in RFC5424.
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> Note: as of this release `klogd` is disabled by default, `syslogd` can
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> read Linux kernel messages on its own now.
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### Changes
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- Support for true RFC3164 formatted log messages to remote log servers,
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including timestamp and hostname. Use `;RFC3161` rule option
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- Support for RFC5424 from UNIX domain socket, from remote servers and also
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to remote servers. Requires new API `syslogp()` to unlock these features
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on the UNIX socket. Still compatible with GLIBC/musl/uClibc
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- Support for options to `syslog.conf` rules. E.g. `;RFC5424` to enable
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sending/writing log messages with RFC3339 style timestamps, and more
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- Support for `include /etc/syslog.d/*.conf` in `syslog.conf`
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- New tool `logger` from the Finit project, BSD licensed. Supports all the
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features of RFC5424, so *very* useful for trying out the "new" standard
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- Support for reading from a custom UNIX domain socket path, `-p SOCK`,
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for unit testing with `logger -u /path/to/sock`
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- Support for sending to a custom port on a remote server, `@host:port`
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- New `syslogp()` API from NetBSD, for applications wanting to use
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RFC5424 features like MsgID or structured data
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- Many *incompatible changes* to command line options in `syslogd` and
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`klogd` for compatiblity with FreeBSD and NetBSD syslogd. Examples:
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- In syslogd: `-b` and `-c` have been replaced with `-r` for global
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log rotation, `-a` has been replaced with the new `-p` support. The
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`-r` flag and `-s HOST` has also been dropped in favor of the BSD
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`-s` flag to control two levels of _secure mode_. The `-n` flag is
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now `-F` and `-n` means something else entirely ... there's more
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- In klogd: `-i` and `-I` have been removed
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- `klogd` is not built by default anymore, `syslogd` can read `/proc/kmsg`
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on Linux on its own. Reduces complexity and gives you one daemon less
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- When systemd support is detected by the configure script the unit file(s)
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are now installed into the systemd system services folder
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- Update COPYING file to GPL 2 rev 2, with new FSF address and other minor stuff
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- Update license header in all files:
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- Sync 3-clause BSD license change with upstream NetBSD and FreeBSD sources
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- Sync GPL license header, new FSF address
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- Add SPDX license identifiers to all source files
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### Fixes
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- Fix GCC 8 warnings; "too small destination buffer in `snprintf()`"
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- Major code cleanup and rewrite inspired by both NetBSD and FreeBSD
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sources, e.g. removed all previous unit `TESTING` #ifdefs
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[v1.6][] - 2018-09-25
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---------------------
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### Changes
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- IPv6 support forward ported from FreeBSD, by John Haxby <john.haxby@oracle.com>
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- Built-in log rotation support from BusyBox syslogd, disabled by default
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- Enable from command line using '-b SIZE' and '-c COUNT', or
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- Per log file in syslog.conf using 'SIZE:COUNT'
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- Automatic compression (gzip) of rotated files from .1
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- Only read /etc/services when needed, by Martin Schulze <joey@infodrom.org>
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- Improved sleep/alarm/mark implementation,
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by Alan Jenkins <alan-jenkins@tuffmail.co.uk>
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- Move hostname setting code from `main()` into `init()` so it is
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re-read on SIGHUP, by Thomas Jarosch <thomas.jarosch@intra2net.com>
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- Documentation update by Martin Schulze <joey@infodrom.org>
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- Re-indent code to Linux KNF
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- Touch PID file on `SIGHUP`, for integration with Finit
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- Add systemd unit files
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- Add GNU configure & build system
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- Add configure flags to enable features and control behavior
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- Detect systemd PATHs
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### Fixes
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- Flush log files independent of MARK, by Martin Schulze <joey@infodrom.org>
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- Fix segfault, remove faulty `fclose()`, found by Andrea Morandi and
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Sean Young. Fixed by Martin Schulze <joey@infodrom.org>
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- Correct continuation line problems on 64bit architecture,
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by David Couture <glowplugrelayw0rks@gmail.com>
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- Bugfix against invalid PRI values (CVE-2014-3634), by mancha <mancha1@zoho.com>
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- Ignore backed up (low baud rate) console, and do not close it.
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Instead, continue writing when its unclogged
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- Increase socket receive buffer size (double), patch from FreeBSD
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[v1.5.1][] - 2014-10-06
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-----------------------
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### Fixes
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- Bugfix against invalid PRI values (CVE-2014-3634), by mancha <mancha1@zoho.com>
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[v1.5][] - 2007-07-27
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---------------------
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- Dmitry V. Levin <ldv@altlinux.org>
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- Close file descriptor in FindSymbolFile() in ksym.c in order not to
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leak file descriptors.
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- Solar Designer <solar@openwall.com>
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- improve crunch_list()
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- Prevent potential buffer overflow in reading messages from the
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kernel log ringbuffer.
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- Ensure that "len" is not placed in a register, and that the
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endtty() signal handler is not installed too early which could
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cause a segmentation fault or worse.
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- Steve Grubb <linux_4ever@yahoo.com>
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- fix memory calculation in crunch_list()
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- Martin Schulze <joey@infodrom.org>
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- klogd will reconnect to the logger (mostly syslogd) after it went
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away
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- On heavily loaded system syslog will not spit out error messages
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anymore when recvfrom() results in EAGAIN
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- Makefile improvements
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- Local copy of module.h
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- Improved sysklogd.8
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- Always log with syslogd's timezone and locale
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- Remove trailing newline when forwarding messages
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- Continue working properly if /etc/service is missing and ignore
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network activity
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- Continue writing to log files as soon as space becomes available
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again after a filled up disk
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- Removed test to detect control characters > 0x20 as this prevented
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characters encoded in UTF-8 to be properly passed through
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- Only resolve the local domain when accepting messages from remote
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- Properly accompany the MARK message with the facility
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- Improved daemonise routine in klogd to stabilise startup
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- klogd will not change the console log level anymore unless -c is given
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- Added back /usr/src/linux/System.map as fall-back location
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- Rewrote the module symbol parser to read from /proc/kallsyms
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- Notify the waiting parent process if the client dies so it doesn't
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wait the entire five minutes.
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- Complete rewrite of the oops kernel module for Linux 2.6
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- Only read kernel symbols from /proc/kallsyms if no System.map has been read
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- Improved symbol lookup
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- Prevent named pipes from becoming the controlling tty
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- Jon Burgess <Jon_Burgess@eur.3com.com>
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- Moved the installation of the signal handler up a little bit so it
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guaranteed to be available when the child is forked, hence, fixing a
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race condition. This used to create problems with UML and fast
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machines.
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- Greg Trounson <gregt@maths.otago.ac.nz>
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- Improved README.linux
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- Ulf H<>rnhammar <Ulf.Harnhammar.9485@student.uu.se>
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- Boundary check for fscanf() in InitKsyms() and CheckMapVersion()
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- Colin Phipps <cph@cph.demon.co.uk>
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- Don't block on the network socket in case of packet loss
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- Dirk Mueller <mueller@kde.org>
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- Don't crash when filesize limit is reached (e.g. without LFS)
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- Miquel van Smoorenburg <miquels@cistron.nl>
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- Fix spurious hanging syslogd in connection with futex and NPTL
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introduced in recent glibc versions and Linux 2.6
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(Details: http://bugs.debian.org/301511)
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- Eric Tucker <et@tallmaple.com>
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- Improved syslog.conf(5) manpage
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- Mike Frysinger <vapier@gentoo.org>
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- use socklen_t where appropriate
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- Kelledin <kelledin@skarpsey.dyndns.org>
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- use newer query_module function rather than stepping through /dev/kmem.
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- Matthew Fischer <futhark@vzavenue.net>
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- Remove special treatment of the percent sign in klogd
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[v1.4.1][] - 2001-03-11
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-----------------------
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- klogd will set the console log level only if `-c' is given on the
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commandline, not overwriting local settings in `/etc/sysctl.conf'.
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- Bugfix: klogd will use SOCK_DGRM as well, re-enables kernel logging
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- Bugfix: Don't make syslogd fail with broken `-a'
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- Bugfix: klogd will skip zero bytes and not enter a busy loop anymore
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- Thomas Roessler <roessler@does-not-exist.org>
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- Patch to prevent LogLine() from being invoked with a negative
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counter as an argument.
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[v1.4][] - 2000-09-19
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---------------------
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- Skip newline when reading in klog messages
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- Use lseek64() instead of llseek() which is deprecated these days
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- Close symbol file before returning with 0 when an error occurred
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while reading it. This will enable systems to umount that
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partition with no open file descriptor left over.
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- Solar Designer <solar@false.com>
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- printline() fixes
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- priority decoding fix
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- Daniel Jacobowitz <dan@debian.org>
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- printchopped() fix
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- Keith Owens <kaos@ocs.com.au>
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- Fixed bug that caused klogd to die if there is no sym_array available.
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- When symbols are expanded, print the line twice. Once with
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addresses converted to symbols, once with the raw text. Allows
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external programs such as ksymoops do their own processing on the
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original data.
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- Olaf Kirch <okir@caldera.de>
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- Remove Unix Domain Sockets and switch to Datagram Unix Sockets
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- Several bugfixes and improvements, please refer to the .c files
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[UNRELEASED]: https://github.com/troglobit/sysklogd/compare/v2.0...HEAD
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[v2.0]: https://github.com/troglobit/sysklogd/compare/v1.6...v2.0
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[v1.6]: https://github.com/troglobit/sysklogd/compare/v1.5...v1.6
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[v1.5.1]: https://github.com/troglobit/sysklogd/compare/v1.5...v1.5.1
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[v1.5]: https://github.com/troglobit/sysklogd/compare/v1.4...v1.5
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[v1.4]: https://github.com/troglobit/sysklogd/compare/v1.3...v1.4
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