Instead of running the domark() timer on half the MarkInterval option,
we take the FreeBSD approach and run on each TIMERINTVL (30 sec), same
as the doflush() timer. This allows greater resolution on the MARK log
message, meaning we would be off by < 30 seconds instead of the current
MarkInterval / 2.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch imports the FreeBSD meaning to the `-c` command line option.
It disables "last message repeated" style log compression for repeated
log messages. A single `-c` disables compression for pipes, another
`-c` (-cc works) also disables compression for all other log targets.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Logic for secure mode setting in .conf file
- Command line always wins
- SIGHUP activates changes
Note, if -s is given on command line it always wins, regardless.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch allows the user to disable the 8-bit data check in the log
message validator. If you have experienced problems with logging any
unicode (utf-8) messages after v1.6, this option is for you.
The correct way to handle this is to add proper parser support for the
Unicode BOM, defined in RFC5424[1], as NetBSD syslogd does[2], search
for IS_BOM().
[1]: https://datatracker.ietf.org/doc/html/rfc5424#appendix-A.8
[2]: http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.sbin/syslogd/syslogd.c?rev=1.138
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
The usage text (syslogd -?) and the syslogd.8 man page was not in sync
wrt. the -b option. This patch updates it to match the layout of -a,
the -a option is also slightly updated.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch adds support for disabling kernel logging, opensys(). This
is in addition to the character device validation check, and primarily
for use in container use-cases -- where logging kernel is not needed.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
We need the '-K' option to disable kernel logging, so this option needs
to be renamed, unfortunately. Fortunately it's not been released yet.
Issue #42
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
When syncing with the FreeBSD man page the audit missed this option.
The man page should detail what the daemon does, even though in this
case it would've been nice to have the FreeBSD behahvior for -v.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This patch migrates the sysklogd project to use the modern /dev/kmsg
interface on Linux. There are many advantages over the older /proc
interface; 1) no need to wait for /proc to be mounted, 2) it provides
multiple simultaneous access. For more information, see:
https://www.kernel.org/doc/Documentation/ABI/testing/dev-kmsg
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Add missing -r option for log rotation and remove -8 option, which we
don't have yet.
Add SECURITY, DEBUGGING, and SIGNALS sections and expand upon the BUGS
section a bit to link things together.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Much less command line options (for now)
- Mention support for RFC3164 and RFC5424
- Add the history of the sysklogd project
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch replaces the original man pages by Greg and Martin, that were
both licensed under the GNU GPL, with 3-clause BSD licensed versions of
the same man pages from FreeBSD.
- syslogd.8 FreeBSD Subversion r335862
- syslog.conf.5 FreeBSD Subversion r314436
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes one of the traditionally key pieces of the sysklogd
project, klogd. Now that syslogd performs logging of kernel messages
we no longer require a separate daemon for that.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- We have the -a PEER and -s to limit exposure to remote attacks
- Mention include file syntax in .conf file differences section
- Mention SECURITY section in BUGS, there are countermeasures
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch re-adds the -n flag, but now to disable DNS reverse-query for
all incoming messages. This can potentially speed up logging a lot for
small/embedded systems that act as log sink.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This change will probably break most installations. We do this to free
up '-n' for use as disabling DNS lookups, from FreeBSD *and* NetBSD.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Most of the functionality in syslogd is now up to par with NetBSD and
FreeBSD syslogd. Lots of syklogd project features have been removed and
syslog in itself is nothing new and surprising, so much of the text can
be greatly simplified or just removed.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Now that we've dropped the previous -r flag we can rename the rotation
flag so it's the same between both logger and syslogd.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Update man page
- Enable -s in default systemd service settings
- Add support for SecureMode, with shutdown()
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is inspired, in part, by FreeBSD syslogd but now diverges
onto its own path. Special handling for AF_UNIX sockets are required
on Linux, which unlike BSD cannot use getaddrinfo() on UNIX sockets.
- Rip out old funix[] and finet support
- Add new concept of peers
- Linked list of peers can be > 20
- Temporarily open up to accept all remote conns
- Remove old logerror(), replaced with new log macros
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
