213 lines
6.4 KiB
Plaintext
213 lines
6.4 KiB
Plaintext
if [ ! "$_STARTUP_RCVAR_SUBR" ]; then _STARTUP_RCVAR_SUBR=1
|
|
#
|
|
# Copyright (c) 2006-2012 Devin Teske
|
|
# 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 (INLUDING, 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.
|
|
#
|
|
# $FreeBSD$
|
|
#
|
|
############################################################ INCLUDES
|
|
|
|
BSDCFG_SHARE="/usr/share/bsdconfig"
|
|
. $BSDCFG_SHARE/common.subr || exit 1
|
|
f_dprintf "%s: loading includes..." startup/rcvar.subr
|
|
f_include $BSDCFG_SHARE/sysrc.subr
|
|
|
|
############################################################ CONFIGURATION
|
|
|
|
#
|
|
# Default path to the `/etc/rc.d' directory where service(8) scripts are stored
|
|
#
|
|
: ${ETC_RC_D:=/etc/rc.d}
|
|
|
|
#
|
|
# Default path to `/etc/rc.subr' (for find_local_scripts_new())
|
|
#
|
|
: ${ETC_RC_SUBR:=/etc/rc.subr}
|
|
|
|
############################################################ GLOBALS
|
|
|
|
#
|
|
# Initialize in-memory cache variables
|
|
#
|
|
STARTUP_RCVAR_MAP=
|
|
_STARTUP_RCVAR_MAP=
|
|
|
|
#
|
|
# Define what an rcvar looks like
|
|
#
|
|
STARTUP_RCVAR_REGEX='[[:alpha:]_][[:alnum:]_]*="([Yy][Ee][Ss]|[Nn][Oo])"'
|
|
|
|
#
|
|
# Default path to on-disk cache file(s)
|
|
#
|
|
STARTUP_RCVAR_MAP_CACHEFILE="/var/run/bsdconfig/startup_rcvar_map.cache"
|
|
|
|
############################################################ FUNCTIONS
|
|
|
|
# f_startup_rcvar_map
|
|
#
|
|
# Produce a map (beit from in-memory cache or on-disk cache) of rc.d scripts
|
|
# and their associated rcvar's. The map returned has the following format:
|
|
#
|
|
# rcvar default script description
|
|
#
|
|
# With each as follows:
|
|
#
|
|
# rcvar the variable used to enable this rc.d script
|
|
# default default value for this variable
|
|
# script the rc.d script in-question
|
|
# description description of the variable from rc.conf(5) defaults
|
|
#
|
|
f_startup_rcvar_map()
|
|
{
|
|
# If the in-memory cached value is available, return it immediately
|
|
if [ "$_STARTUP_RCVAR_MAP" ]; then
|
|
echo "$STARTUP_RCVAR_MAP"
|
|
return $SUCCESS
|
|
fi
|
|
|
|
#
|
|
# create the in-memory cache (potentially from validated on-disk cache)
|
|
#
|
|
|
|
# Get a list of /etc/rc.d scripts ...
|
|
local file rc_script_list=
|
|
for file in "$ETC_RC_D"/*; do
|
|
[ -f "$file" ] || continue
|
|
[ -x "$file" ] || continue
|
|
rc_script_list="$rc_script_list${rc_script_list:+ }$file"
|
|
done
|
|
# ... and /usr/local/etc/rc.d scripts
|
|
rc_script_list="$rc_script_list${rc_script_list:+ }$(
|
|
local_startup=$( f_sysrc_get local_startup )
|
|
f_include "$ETC_RC_SUBR"
|
|
find_local_scripts_new
|
|
echo $local_rc
|
|
)"
|
|
|
|
#
|
|
# Calculate a digest given the checksums of all dependencies (scripts
|
|
# and the defaults file). This digest will be used to determine if an
|
|
# on-disk global persistant cache file (containg this digest on the
|
|
# first line) is valid and can be used to quickly populate the cache
|
|
# value for immediate return.
|
|
#
|
|
local rc_script_list_digest
|
|
rc_script_list_digest=$( cd "$ETC_RC_D" &&
|
|
cksum "$RC_DEFAULTS" $rc_script_list | md5 )
|
|
|
|
#
|
|
# Check to see if the global persistant cache file exists
|
|
#
|
|
if [ -f "$STARTUP_RCVAR_MAP_CACHEFILE" ]; then
|
|
#
|
|
# Attempt to populate the in-memory cache with the (soon to be)
|
|
# be validated on-disk cache. If validation fails, fall-back to
|
|
# the current value and provide error exit status.
|
|
#
|
|
STARTUP_RCVAR_MAP=$(
|
|
( # Get digest as the first word on the first line
|
|
read digest rest_ignored
|
|
|
|
#
|
|
# If the stored digest matches the calculated-
|
|
# one populate the in-memory cache from the on-
|
|
# disk cache and provide success exit status.
|
|
#
|
|
if [ "$digest" = "$rc_script_list_digest" ]
|
|
then
|
|
cat
|
|
exit $SUCCESS
|
|
else
|
|
# Otherwise, return the current value
|
|
echo "$STARTUP_RCVAR_MAP"
|
|
exit $FAILURE
|
|
fi
|
|
) < "$STARTUP_RCVAR_MAP_CACHEFILE"
|
|
)
|
|
export STARTUP_RCVAR_MAP
|
|
if [ $? -eq $SUCCESS ]; then
|
|
export _STARTUP_RCVAR_MAP=1
|
|
echo "$STARTUP_RCVAR_MAP"
|
|
return $SUCCESS
|
|
fi
|
|
# Otherwise, fall-thru to create in-memory cache from scratch
|
|
fi
|
|
|
|
#
|
|
# If we reach this point, we need to generate the data from scratch
|
|
# (and after we do, we'll attempt to create the global persistant
|
|
# cache file to speed up future executions).
|
|
#
|
|
|
|
STARTUP_RCVAR_MAP=$(
|
|
for script in $rc_script_list; do
|
|
rcvar_list=$( $script rcvar | awk -F= \
|
|
-v script="$script" '
|
|
/^'"$STARTUP_RCVAR_REGEX"'/ {
|
|
if ( $2 ~ /^"[Yy][Ee][Ss]"$/ )
|
|
print $1 ",YES"
|
|
else
|
|
print $1 ",NO"
|
|
}' )
|
|
for entry in $rcvar_list; do
|
|
rcvar="${entry%%,*}"
|
|
rcvar_default=$( f_sysrc_get_default "$rcvar" )
|
|
[ "$rcvar_default" ] ||
|
|
rcvar_default="${entry#*,}"
|
|
rcvar_desc=$( f_sysrc_desc "$rcvar" )
|
|
echo $rcvar ${rcvar_default:-NO} \
|
|
$script "$rcvar_desc"
|
|
done
|
|
done | sort -u
|
|
)
|
|
export STARTUP_RCVAR_MAP
|
|
export _STARTUP_RCVAR_MAP=1
|
|
echo "$STARTUP_RCVAR_MAP"
|
|
|
|
#
|
|
# Attempt to create the persistant global cache
|
|
#
|
|
|
|
# Create a new temporary file to write to
|
|
local tmpfile="$( mktemp -t "$pgm" )"
|
|
[ "$tmpfile" ] || return $FAILURE
|
|
|
|
# Write the temporary file contents
|
|
echo "$rc_script_list_digest" > "$tmpfile"
|
|
echo "$STARTUP_RCVAR_MAP" >> "$tmpfile"
|
|
|
|
# Finally, move the temporary file into place
|
|
case "$STARTUP_RCVAR_MAP_CACHEFILE" in
|
|
*/*) f_quietly mkdir -p "${STARTUP_RCVAR_MAP_CACHEFILE%/*}"
|
|
esac
|
|
mv "$tmpfile" "$STARTUP_RCVAR_MAP_CACHEFILE"
|
|
}
|
|
|
|
############################################################ MAIN
|
|
|
|
f_dprintf "%s: Successfully loaded." startup/rcvar.subr
|
|
|
|
fi # ! $_STARTUP_RCVAR_SUBR
|