ACC SHELL

#!/bin/bash
#
# Copyright (c) 2009 SUSE LINUX Products GmbH Nuernberg, Germany.
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA
#
# Author: 
#    Marius Tomaschewski <mt@suse.de>
#

unset POSIXLY_CORRECT ; set +o posix # we're using non-posix bash features

usage () {
	echo $@
	echo "usage: if{up,down,status}-sysctl [<config>] <interface> [-o <options>]"
	echo ""
	echo "Options are:"
	echo "    [on]boot : we are currently booting (or shutting down)"
	echo "    auto     : alias for boot"
	echo "    hotplug  : we are handling a hotplug event"
	echo "    debug    : be verbose"
	exit $R_USAGE
}

######################################################################
# change the working direcory and source some common files
#
R_INTERNAL=1      # internal error, e.g. no config or missing scripts
cd /etc/sysconfig/network        || exit $R_INTERNAL
test -f ./config && . ./config

# we source common constants and log functions only here
test -f scripts/functions.common && \
      . scripts/functions.common || exit $R_INTERNAL

######################################################################
# check arguments and how we are called (in case of links)
#
SCRIPTNAME=${0##*/}
debug "$SCRIPTNAME $*"
ACTION=${SCRIPTNAME#if}
ACTION=${ACTION%%-*}
case "${ACTION}" in
	up|status|down) ;;
	*) usage
esac
case "$1" in ""|-h|*help*) usage; esac
CONFIG=$1
shift
if [ -n "$1" -a "$1" != "-o" ] ; then
	INTERFACE=$1
else
	INTERFACE=$CONFIG
fi
shift
test "$1" = "-o" && shift
OPTIONS="$@"
MODE=manual
while [ $# -gt 0 ]; do
	case $1 in
		boot|onboot) MODE=auto ;;
		hotplug)     MODE=auto ;;
		auto)        MODE=auto ;;
		quiet)       be_quiet_has_gone ;;
		debug)       DEBUG=yes ;;
		rc)          RUN_FROM_RC=yes ;;
		*)           debug unknown option $1 ;;
	esac
	shift
done


######################################################################
if test "$NETWORKMANAGER" = yes ; then
	# do we have to apply in NetworkManager mode?
	test "${IFSYSCTL_NETWORKMANAGER:-no}" = yes || exit 0
fi

######################################################################
# Check needed tools
#
if ! [ -x /sbin/sysctl ]; then
	err_mesg "sysctl utility missed, install procps"
	exit $R_INTERNAL
fi

ifsysctl_files()
{
	local restore_noglob=`shopt -o -p noglob`
	shopt -o -s noglob
	local CF=$1
	for cf in ./ifsysctl ${CF:+"./ifsysctl-${CF}"} ; do
		test -r "$cf" && echo "$cf"
	done
	eval $restore_noglob
}

get_interface_sysctls()
{
	local IF="$1" CF="$2"
	test -n "$IF" -a -n "$CF" || return 1

	LANG=C LC_ALL=C \
	awk -vI="$IF" -- 'BEGIN{S=I; gsub("\\.", "/", S);}
	{ gsub("\\$INTERFACE", I); gsub("\\$SYSCTL_IF", S); print $0; }
	' `ifsysctl_files "$CF"` </dev/null
}

######################################################################
case $ACTION in
up)
	test "$DEBUG" = yes && quiet='' || quiet='-q'
	debug "Applying $INTERFACE ifsysctl settings"
	out=`get_interface_sysctls "$INTERFACE" "$CONFIG" | \
	     /sbin/sysctl -e $quiet -p - 2>&1`
	test "x$out" = x || message_if_not_run_from_rc "$out"
;;
down)
;;
status)
;;
esac