HardenedBSD/etc/rc.d/savecore
Eric van Gyzen 1f1ed24cc5 crashinfo: add "batch" mode and use it during boot
In batch mode, most messages go into the core.txt.N file instead of stdout.

Reviewed by:	jhb
MFC after:	3 days
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D10429
2017-06-01 21:23:04 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: savecore
# REQUIRE: dumpon ddb syslogd
# KEYWORD: nojail
. /etc/rc.subr
name="savecore"
rcvar="savecore_enable"
desc="Save a core dump of the operating system"
start_cmd="savecore_start"
start_precmd="savecore_prestart"
stop_cmd=":"
savecore_prestart()
{
# Quit if we have no dump device
case ${dumpdev} in
[Nn][Oo] | '')
debug 'No dump device. Quitting.'
return 1
;;
[Aa][Uu][Tt][Oo])
if [ ! -L /dev/dumpdev ]; then
return 1
fi
dumpdev=`/bin/realpath /dev/dumpdev`
;;
esac
# If there is no crash directory set it now
case ${dumpdir} in
'')
dumpdir='/var/crash'
;;
[Nn][Oo])
dumpdir='NO'
;;
esac
if [ ! -c "${dumpdev}" ]; then
warn "Dump device does not exist. Savecore not run."
return 1
fi
if [ ! -d "${dumpdir}" ]; then
warn "Dump directory does not exist. Savecore not run."
return 1
fi
return 0
}
savecore_start()
{
local dev
case "${dumpdev}" in
[Aa][Uu][Tt][Oo])
dev=
;;
*)
dev="${dumpdev}"
;;
esac
if savecore -C "${dev}" >/dev/null; then
savecore ${savecore_flags} ${dumpdir} ${dumpdev}
if checkyesno crashinfo_enable; then
${crashinfo_program} -b -d ${dumpdir}
fi
sync
else
check_startmsgs && echo 'No core dumps found.'
fi
}
load_rc_config $name
run_rc_command "$1"