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bfb80de42d
convinced myself that it's better then what we have, but still not perfect. /etc/rc : Attempt to seed /dev/random with multiple backoffs. /etc/rc.shutdown : Attempt to write the entropy_file. In debugging the above changes, I've run into some inconsistancies... rc.shutdown is run via 'init 6', but does not appear to be run via '/sbin/reboot'. Thus, this set of changes improves life depending on the mechanism used to shut the system down. Submitted by: Doug Barton <DougB@gorean.org> Approved by: markm
123 lines
3.2 KiB
Bash
123 lines
3.2 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 1997 Ollivier Robert
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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# Site-specific closing actions for daemons run by init on shutdown,
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# or before going single-user from multi-user.
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# Output and errors are directed to console by init, and the
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# console is the controlling terminal.
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stty status '^T'
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# Set shell to ignore SIGINT (2), but not children;
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# shell catches SIGQUIT (3) and returns to single user after fsck.
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trap : 2
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trap : 3 # shouldn't be needed
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HOME=/
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PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin
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export HOME PATH
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# If there is a global system configuration file, suck it in.
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#
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if [ -r /etc/defaults/rc.conf ]; then
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. /etc/defaults/rc.conf
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source_rc_confs
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elif [ -r /etc/rc.conf ]; then
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. /etc/rc.conf
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fi
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# Write some entropy so the rebooting /dev/random can reseed
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#
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case ${entropy_file} in
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[Nn][Oo] | '')
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;;
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*)
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echo "Writing entropy file."
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rm -f ${entropy_file}
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oumask=`umask`
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umask 077
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if touch ${entropy_file} ; then
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entropy_file_confirmed="${entropy_file}"
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else
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# Try this as a reasonable alternative for read-only
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# roots, diskless workstations, etc.
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rm -f /var/db/entropy
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if touch /var/db/entropy ; then
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entropy_file_confirmed=/var/db/entropy
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fi
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fi
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case ${entropy_file_confirmed} in
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'')
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echo "ERROR: entropy file write failed"
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;;
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*)
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dd if=/dev/random of=${entropy_file_confirmed} \
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bs=4096 count=1 2> /dev/null
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;;
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esac
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umask ${oumask}
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;;
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esac
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# Check if /var/db/mounttab is clean.
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case $1 in
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reboot)
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if [ -f /var/db/mounttab ]; then
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rpc.umntall
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fi
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;;
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esac
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echo -n "Shutting down daemon processes:"
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# for each valid dir in $local_startup, search for init scripts matching *.sh
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case ${local_startup} in
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[Nn][Oo] | '')
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;;
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*)
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for dir in ${local_startup}; do
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if [ -d "${dir}" ]; then
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for script in ${dir}/*.sh; do
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if [ -x "${script}" ]; then
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(set -T
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trap 'exit 1' 2
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${script} stop)
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fi
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done
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fi
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done
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echo .
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;;
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esac
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# Insert other shutdown procedures here
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echo '.'
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exit 0
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