because new devfs entries can show up later and one can access such entires
from inside named chroot.
In rc.d scripts we can use devfs_domount() function with devfsrules_hide_all
policy and unhide 'null' and 'random' manually.
to see if a prior devfs has been mounted. If no devfs is mounted on
${jail_devdir}/dev then proceed. This will prevent the stack up of
multiple devfs mounts on the same mount point.
Discussed with: pjd
MFC after: 1 week
to run initdiskless before we run rcorder on /etc/rc.d. To allow this,
move /etc/rc.d/initdiskless to /etc/rc.initdiskless and run it directly
from /etc/rc.
Remove /etc/rc.d/preseedrandom as it is no longer necessicary (we start
with entropy unblocked) and was only used by initdiskless when it
was needed.
Discussed on: freebsd-rc
Repocopy by: peter
Without this flag, if the symlink existed already a new symlink would
be created in the source directory. While harmless if the two symlinks
were the same, it nonetheless caused pointless confusion.
The pathological case is that when there is an existing /etc/namedb
symlink, but named_chrootdir in rc.conf pointed to a different
directory, it was the symlink in /var/named that was getting
updated, not the one in /etc. This led to some difficult to diagnose
problems for users.
sockets placed into prisons from the host environment get clobbered
by the prison's instance of cleanvar. (assuming /etc/rc is run in
the prison).
Discussed with: pjd, green, cperciva
MFC after: 1 week
save file was /var/db/entropy, which also happens to
be the directory where the individual entropy files
created by /usr/libexec/save-entropy are stored.
Change the suggestion to be /var/db/entropy-file
instead.
In an error condition where the shutdown file is not
created, the error message accessed a variable that
doesn't exist.
PR: conf/75722
Submitted by: Nicolas Rachinsky <list@rachinsky.de>
default for now. Default flags create missing directories.
Remove comment about doing this in etc/rc.d/var.
Unlike in the PR, I chose to do this in the lpd script where we reliably
have /usr available.
PR: conf/71488
Submitted by: RZ-FreeBSD0904 at fh-karlsruhe dot de
to hit this case when /usr is remote and thus hasn't been mounted (since
you're supposed to have /var before mounting remote file systems).
Normal machines that don't have a /var for some reason will have /usr
already available because it's local.
- Enable it by default, running newsyslog with -CN which creates files
that have the C flag specified in /etc/newsyslog.conf.
- Remove the "newsyslog -CC" call from etc/rc.d/var and the check for
newsyslog.
- Add the C flag to entries in /etc/newsyslog.conf that are currently
installed as part of the base system.
There are two effects from this change:
- Users who delete default syslog files to stop logging to them
will need to set newsyslog_enable=NO in rc.conf or remove the C
flag from those file in /etc/newsyslog.conf or they will come back
on the next boot.
- Diskless systems now create the same set of files that ordinary
systems have by default instead of every file in newsyslog.conf.
to create /var/log/lastlog.
- Also create /var/log/wtmp if missing.
- Attempt to create these files unless populate_var is NO rather then
only when /var is empty or populate_var=YES.
frequencies are specified with performance_cpu_freq and economy_cpu_freq.
Of course, special values LOW and HIGH are also supported. Also, remove
old throttling support.
rc.d/mountcritlocal and sed(1) is placed in /usr/bin/. Other useful tools
for this task are also placed in /usr/ (tr(1), awk(1)), so I implemented
local_tr() function which works simlar to tr(1).
Reported by: Amir Shalem <amir@boom.org.il>
MFC after: 1 week
user owns these directories or the sticky bit is unset may open security holes,
so simply create them at startup with the correct owner/mode.
MFC after: 1 day
1. Feature: for flexibility reasons and as a prerequisite to clean
shutdowns, allow the configuration of a stop/shutdown command
via rc.conf variable "jail_<name>_exec_stop" in addition to the
start/boot command (rc.conf variable "jail_<name>_exec_start"). For
backward compatibility reasons, rc.conf variable "jail_<name>_exec"
is still supported, too.
2. Debug: Add the used boot/shutdown commands to the debug output of
the /etc/rc.d/jail script, too.
3. Security: Run the Jail start/boot command in a cleaned environment
to not leak information from the host to the Jail during startup.
4. Feature: Run the Jail stop/shutdown command "jail_<name>_exec_stop" on
"/etc/rc.d/jail stop <name>" to allow a graceful shutdown of the Jail
before its processes are just killed.
5. Bugfix: When killing the remaining Jail processes give the processes
time to actually perform their termination sequence. Without this the
subsequent umount(8) operations usually fail because the resources
are still in use. Additionally, if after trying to TERM-inate the
processes there are still processes hanging around, finally just KILL
them.
6. Bugfix: In rc.shutdown, if running inside a Jail, skip the /etc/rc.d/*
scripts which are flagged with the KEYWORD "nojail" to allow the
correct operation of rc.shutdown under jail_<name>_exec_stop="/bin/sh
/etc/rc.shutdown". This is analogous to what /etc/rc does inside a Jail.
Now the following typical host-configuration for two Jails works as
expected and correctly boots and shutdowns the Jails:
-----------------------------------------------------------
# /etc/rc.conf:
jail_enable="YES"
jail_list="foo bar"
jail_foo_rootdir="/j/foo"
jail_foo_hostname="foo.example.com"
jail_foo_ip="192.168.0.1"
jail_foo_devfs_enable="YES"
jail_foo_mount_enable="YES"
jail_foo_exec_start="/bin/sh /etc/rc"
jail_foo_exec_stop="/bin/sh /etc/rc.shutdown"
jail_bar_rootdir="/j/bar"
jail_bar_hostname="bar.example.com"
jail_bar_ip="192.168.0.2"
jail_bar_devfs_enable="YES"
jail_bar_mount_enable="YES"
jail_bar_exec_start="/path/to/kjailer -v"
jail_bar_exec_stop="/bin/sh -c 'killall kjailer && sleep 60'"
-----------------------------------------------------------
# /etc/fstab.foo
/v/foo /j/foo/v/foo nullfs rw 0 0
-----------------------------------------------------------
# /etc/fstab.bar
/v/bar /j/bar/v/bar nullfs rw 0 0
-----------------------------------------------------------
Reviewed by: freebsd-hackers
MFC after: 2 weeks
this feature for a jail named foo :
jail_foo_mount_enable="YES"
jail_foo_fstab="/etc/fstab.foo"
The second line is actually useless, since the code defaults to
using "/etc/fstab.$jailname" as the fstab file if none is specified.
MFC after: 3 days
Submitted by: Jeremie Le Hen <jeremie@le-hen.org>
These can be used to pass extra options to the mdmfs(8) utility,
to customize the finer details of the md file system creation
(i.e. to turn on/off softupdates, to specify a default owner for md
filesystem, etc).
Use these two new flags to mount tmpmfs and varmfs without
softupdates, since it doesn't make much sense to use SU on
malloc-backed file systems.
Reviewed by: mtm
Inspired by: J. D. Bronson, jbronson at wixb dot com
