internal list of logfiles. So if writev(2) fails for potentially transient
errors like ENOSPC, syslogd requires a restart, even if the filesystem has
purged.
This change allows syslogd to ignore ENOSPC space errors, so that when the
filesystem is cleaned up, syslogd will automatically start logging again
without requiring the reset. This makes syslogd(8) a bit more reliable.
MFC after: 1 week
when they don't exist, but sometimes its quite useful (eg. we use
non-standard log files and memory backed /var/, which is populated on
boot).
Add -C option which tells syslogd(8) to create log files if they don't
exist.
Glanced at by: phk
MFC after: 3 days
catch all transient errors. This fixes situations where transient
error conditions such as network interfaces losing carrier signals
or the system running out of mbufs would result in the permanent
removal of forwarding syslog messages.
MFC after: 1 week
than a colon, so don't allow whitespace in program names. To be
consistent with hostnames, don't allow whitespace in the program
name specifiers in syslog.conf either.
(The first change is by Markus from the PR, the second is mine.)
PR: 68691
Submitted by: Markus Oestreicher <m.oe@x-trader.de>
MFC after: 3 weeks
syslog(3) if we are a priveleged program (sshd, su, etc.).
- Make syslogd open an additional socket /var/run/logpriv, with 0600
permissions.
- In libc, try to use this socket.
- Do not loop forever if we are using this socket (partial backout of 1.31)
Reviewed by: dwmalone, Andrea Campi <andrea webcom it>
Approved by: julian (mentor)
MFC after: 1 month
remove limit for 20 sockets.
- Add possibility to specify file mode for sockets created with '-l'.
- Check that socket name in '-l' is absolute.
Reviewed by: dwmalone, Andrea Campi <andrea webcom it>
Approved by: julian (mentor)
FFLAG_NEEDSYNC and fsync the file when select() next returns zero. This
dramatically speeds up the process of logging large amounts of data, while
leaving the essential semantics (that data can be expected to be on disk
if we crash) unchanged.
In my tests, this speeds up the rc phase of booting by 18-20%. [1]
YES PLEASE! by: phk [1]
explicitly fsynced after kernel messages are logged. This option
should be syntax compatible with a similar option in Linux syslogd.
I've made some small changes to Pekka's patch, hoepfully I haven't
goofed anything.
PR: 66790
Submitted by: Pekka Savola <pekkas@netcore.fi>
Obtained from: Martin Schulze's syslogd
MFC after: 1 month
Syslogd should ensure that f_file is a valid file descriptor when
f_type is FILE, CONSOLE, TTY and for a PIPE where f_pid > 0. If the
descriptor is closed/invalid then the type should be set to UNUSED
or the pid should be set to 0.
To this end:
1) Don't close(f->f_file) if we can't send a message to a remote
host because the file descriptor used for remote logging is
stored in finet, not in f->f_file. f->f_file is probably
uninitialised, so I guess we usually end up closing fd 0.
2) Don't close PIPE file descriptors if they are invalid.
3) If the call to p_open fails, don't set the pid.
The OpenBSD patches in this area set f_file to -1 after the fd is
closed and then avoids calling close if f_file < 0. I haven't done
this, but it might be a good idea too.
Inspired by: PR 67139/OpenBSD
1) Use strncpy on strings out of utmp.
2) Avoid running off the start of one string while removing white space.
(I've used slightly different code to OpenBSD here.)
3) Ignore trailing spaces in the priority.
PR: 67139
Submitted by: Xin LI <delphij@FreeBSD.org.cn>
Obtained from: OpenBSD
1) Don't check for getopt returning '?', we have a default case.
2) Check if the priority is LOG_KERN correctly - in practice
LOG_KERN is 0, so it makes no difference. OpenBSD fixed a
different nearby bug that we don't have 'cos our definition
of LOG_MAKEPRI is different to OpenBSD's.
Copy a comment from OpenBSD, observing that LOG_KERN is 0.
Inspired by PR: 67139
if the line doesn't match ^<%d>, then treat it as a regular kernel
printf line. Previously if a kernel printf message started with "<"
it would be interpreted as a log message, often with LOG_EMERG
level. This was triggered by some printfs in sys/dev/aic7xxx/, and
can also happen with the partial lines that result if syslogd cannot
keep up with the rate of arrival of kernel messages.
Reviewed by: dwmalone
MFC after: 1 week
is possible for an error to occur while trying to log an error, and
this can result in infinite recursion (or at least until we run out
of stack).
Rather than this, we ignore requests to log an error while logging an
error.
PR: 51253
MFC after: 2 weeks
