freebsd-dev/libexec/rc/rc.d/dumpon
Bjoern A. Zeeb 0696600c41 Move the rc framework out of sbin/init into libexec/rc.
The reasons for this are forward looking to pkgbase:
 * /sbin/init is a special binary; try not to replace it with
   every package update because an rc script was touched.
   (a follow-up commit will make init its own package)
 * having rc in its own place will allow more easy replacement
   of the rc framework with alternatives, such as openrc.

Discussed with:		brd (during BSDCam), kmoore
Requested by:		cem, bz
PR:			231522
Approved by:		re (gjb)
2018-10-17 16:49:11 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: dumpon
# BEFORE: disks
# KEYWORD: nojail
. /etc/rc.subr
name="dumpon"
desc="Dump kernel corefiles from swap to disk"
start_cmd="dumpon_start"
stop_cmd="dumpon_stop"
dumpon_try()
{
local flags
flags=${dumpon_flags}
if [ -n "${dumppubkey}" ]; then
warn "The dumppubkey variable is deprecated. Use dumpon_flags."
flags="${flags} -k ${dumppubkey}"
fi
/sbin/dumpon ${flags} "${1}"
if [ $? -eq 0 ]; then
# Make a symlink in devfs for savecore
ln -fs "${1}" /dev/dumpdev
return 0
fi
warn "unable to specify $1 as a dump device"
return 1
}
dumpon_start()
{
# Enable dumpdev so that savecore can see it. Enable it
# early so a crash early in the boot process can be caught.
#
case ${dumpdev} in
[Nn][Oo] | '')
;;
[Aa][Uu][Tt][Oo])
dev=$(/bin/kenv -q dumpdev)
if [ -n "${dev}" ] ; then
dumpon_try "${dev}"
return $?
fi
while read dev mp type more ; do
[ "${type}" = "swap" ] || continue
[ -c "${dev}" ] || continue
dumpon_try "${dev}" 2>/dev/null && return 0
done </etc/fstab
echo "No suitable dump device was found." 1>&2
return 1
;;
*)
dumpon_try "${dumpdev}"
;;
esac
}
dumpon_stop()
{
case ${dumpdev} in
[Nn][Oo] | '')
;;
*)
rm -f /dev/dumpdev
/sbin/dumpon -v off
;;
esac
}
load_rc_config $name
run_rc_command "$1"