opnsense-src/libexec/rc/rc.d/tmp
Alexander Leidinger f99f0ee14e rc.d: add a service jails config to all base system services
This gives more permissions to services (e.g. network access to
services which require this) when they are started as an automatic
service jail.

The sshd patch is important for the sshd-related functionality as
described in the man-page in the service jails part.

The location of the added env vars is supposed to allow overriding them
in rc.conf, and to hard-disable the use of svcj for some parts where it
doesn't make sense or will not work.

Only a subset of all of the services are fully tested (I'm running this
since more than a year with various services started as service jails).
The untested parts should be most of the time ok, in some edge-cases
more permissions are needed inside the service jail.
Differential Revision:	https://reviews.freebsd.org/D40371
2024-05-22 15:41:49 +02:00

81 lines
2.2 KiB
Bash
Executable file

#!/bin/sh
#
# Copyright (c) 1999 Matt Dillon
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# PROVIDE: tmp
# REQUIRE: mountcritlocal
. /etc/rc.subr
name="tmp"
desc="Configure tmpfs"
stop_cmd=':'
load_rc_config $name
# doesn't make sense to run in a svcj: mounting
tmp_svcj="NO"
mount_tmpmfs()
{
while read line; do
case $line in
/dev/md[0-9]*\ /tmp)
return;;
esac
done <<*EOF
$(df /tmp)
*EOF
mount_md ${tmpsize} /tmp "${tmpmfs_flags}"
chmod 01777 /tmp
}
# If we do not have a writable /tmp, create a memory
# filesystem for /tmp. If /tmp is a symlink (e.g. to /var/tmp,
# then it should already be writable).
#
case "${tmpmfs}" in
[Aa][Uu][Tt][Oo])
_tmpdir=/tmp/.diskless.$(dd if=/dev/random bs=32 count=1 status=none | sha256)
if mkdir -m 0700 ${_tmpdir}; then
rmdir ${_tmpdir}
else
if [ -h /tmp ]; then
echo "*** /tmp is a symlink to a non-writable area!"
echo "dropping into shell, ^D to continue anyway."
/bin/sh
else
mount_tmpmfs
fi
fi
;;
*)
if checkyesno tmpmfs; then
mount_tmpmfs
fi
;;
esac