#!/bin/sh
#
#
# ifup-ppp script for pppd-2.3.5 (with persist & demand options) ver 0.2
# Grzegorz Stanislawski <stangrze@open.net.pl>
# Features:
#  - since persist option is included to pppd it's no need to do werid loops
#    ifup-ppp script. This also makes your logfile grow slower when Your link
#    is down.
#  - chat-ppp? file with script for chat is now parsed by shell, so You can
#    include in it shell variables (for example $PHONE, $USERNAME)
#    You can define any variable in ifcfg-ppp? file and use it in chat-ppp?
#    You only have to add it's name into DATAFORCHAT variable
#    Note, that chat-ppp file is now parsed by shell, so you have to escape
#    with "\" all shell special characters like \$;:)(& etc.

PATH=/sbin:/usr/sbin:/bin:/usr/bin

# ifup-post for PPP is handled through /etc/ppp/ip-up

. /etc/sysconfig/network
. /etc/rc.d/init.d/functions
. /lib/rc-scripts/functions.network

CONFIG=$1
source_config
# set all major variables
setup_ip_param

if [ "$2" = "boot" ] && is_no "${ONBOOT}"; then
	exit
fi
if [ ! -x /usr/sbin/pppd ]; then
	nls "%s does not exist or is not executable" "/usr/sbin/pppd"
	nls "%s for %s exiting" "ifup-ppp" "$DEVICE"
	logger -p daemon.info -t ifup-ppp \
		"$(nls '%s does not exist or is not executable for %s' \
		"/usr/sbin/pppd" "$DEVICE")"
	exit 1
fi

# modprobe ppp modules (udev case)
[ ! -e /dev/ppp ] && modprobe -s char-major-108

opts="lock"

if [ -z "${REPORTFILE}" ] ; then
	REPORTFILE=/dev/null
fi

if [ -n "${PPPOE_DEV}" ]; then
	if is_yes "${PPPOE_KERNEL}"; then
		modprobe -s pppoe
		MODEMMODE="plugin rp-pppoe.so"
		MODEMPORT="${PPPOE_DEV}"
	else
		MODEMMODE="pty"
		MODEMPORT="pppoe -I ${PPPOE_DEV} ${PPPOE_OPT}"
	fi
elif is_yes "${PPPOA_EAGLE}"; then
	EAGLECTRL="/usr/sbin/adictrl"
	if [ ! -x $EAGLECTRL ]; then
		EAGLECTRL="/usr/sbin/eaglectrl"
	fi
	if [ ! -x $EAGLECTRL ]; then
		nls "%s does not exist or is not executable" "$EAGLECTRL"
		nls "%s for %s exiting" "ifup-ppp" "$DEVICE"
		exit 1
	fi
	$EAGLECTRL -w
	PPPOA_IFACE=$( $EAGLECTRL -i 2>/dev/null)
	if [ -z "$PPPOA_IFACE" ]; then
		PPPOA_IFACE="(unknown)"
	else
		ip link set "$PPPOA_IFACE" up
	fi
	MODEMMODE="pty"
	MODEMPORT="pppoa -I ${PPPOA_IFACE} ${PPPOA_OPT}"
elif is_yes "${PPPOA_SPEEDTOUCH}"; then
	if is_yes "${PPPOA_KERNEL}"; then
		modprobe -s speedtch
		modprobe -s pppoatm
		if [ -n "${PPPOA_FIRMWARE}" ]; then
			modem_run -k -s -f "${PPPOA_FIRMWARE}"
		fi
		MODEMMODE="plugin pppoatm.so"
		MODEMPORT="${PPPOA_VPI}.${PPPOA_VCI}"
	else
		modem_run -s -f "${PPPOA_FIRMWARE}"
		MODEMMODE="pty"
		MODEMPORT="pppoa3 -v1 -c -vpi ${PPPOA_VPI} -vci ${PPPOA_VCI} ${PPPOA_OPT}"
	fi
elif is_yes "${PPPOA}"; then
	MODEMMODE="plugin pppoatm.so"
	MODEMPORT="${PPPOA_VPI}.${PPPOA_VCI}"
else

	if [ -n "$MODEMPORT" -a ! -c "$MODEMPORT" ]; then
		echo >&2 "MODEMPORT=$MODEMPORT is not a character device!"
		exit 1
	fi

	if is_no "${DIRECT_CONNECT}" || [ -z "${DIRECT_CONNECT}" ]; then
		PEERCONF=/etc/ppp/peers/${DEVNAME}
		if [ ! -f ${PEERCONF} ]; then
			if [ -z "${WVDIALSECT}" ]; then
				# XXX: REPORTFILE support is problematic here --misiek
				[ -f "${CHATSCRIPT}" ] || CHATSCRIPT=/etc/sysconfig/interfaces/data/chat-${PARENTDEVNAME}
				if [ ! -f "${CHATSCRIPT}" ]; then
					nls '%s does not exist, perhaps set $CHATSCRIPT' "${CHATSCRIPT}"
					nls 'ifup-ppp for %s exiting' "${DEVNAME}"
					logger -p daemon.info -t ifup-ppp \
						"$(nls '%s does not exist for %s' "${CHATSCRIPT}" "${DEVICE}")"
					exit 1
				fi
			fi
			logger -s -p daemon.notice -t ifup-ppp "$(nls 'Setting up a new %s config file' "${PEERCONF}")"
			if [ -f /etc/ppp/peers/${DEVICE} ]; then
				cp -f /etc/ppp/peers/${DEVICE} ${PEERCONF}
			else
				touch ${PEERCONF}
			fi
			if [ "${WVDIALSECT}" ]; then
				echo "connect \"/usr/bin/wvdial --chat ${WVDIALSECT} --config /etc/wvdial.conf >> ${REPORTFILE} 2>&1 \"" >> ${PEERCONF}
			else
				if is_yes "${DEBUG}"; then
					chatdbg="-v"
				fi
				if [ -n "${DATAFORCHAT}" ]; then
					chatreadenv=-E
				fi
				echo "connect \"/usr/sbin/chat $chatreadenv -f ${CHATSCRIPT} -r ${REPORTFILE} ${chatdbg}\"" >> ${PEERCONF}
			fi
		fi
		opts="$opts call ${DEVNAME}"
	fi
fi

if [ -z "$MODEMPORT" ]; then
	# Last try:
	if [ "${PPPOA_VPI}" -a "${PPPOA_VCI}" ]; then
		MODEMPORT=${PPPOA_VPI}.${PPPOA_VCI}
	else
		echo >&2 "Missing modemport!"
		exit 1
	fi
fi

if [ -z "$HOLDOFF" ]; then
	HOLDOFF=30
fi
if is_yes "${PERSIST}"; then
	if [ -z "${MAXFAIL}" ]; then
		MAXFAIL="0"
	fi
	opts="$opts persist holdoff $HOLDOFF maxfail $MAXFAIL"
fi
if is_yes "${DEMAND}"; then
	if [ -z "${IDLE}" ]; then
		IDLE="0"
	fi
	opts="$opts demand ktune idle ${IDLE}"
fi
if ! is_no "${HARDFLOWCTL}"; then
	opts="$opts crtscts"
fi
if is_yes "${MODEMCTL}"; then
	opts="$opts modem"
fi
if is_yes "${SYNC}"; then
	opts="$opts sync"
fi
if is_yes "${ESCAPECHARS}"; then
	opts="$opts asyncmap FFFFFFFF"
else
	opts="$opts asyncmap 00000000"
fi
if is_yes "${DEFROUTE}"; then
	# pppd will no longer delete an existing default route
	# so we have to help it out a little here.
	ip route del 0/0 > /dev/null 2>&1
	opts="$opts defaultroute"
elif ! is_no "${DEFROUTE}"; then
	opts="$opts defaultroute"
fi
if ! is_no "${PEERDNS}"; then
	opts="$opts usepeerdns"
fi
if [ -n "${MRU}" ] ; then
	opts="$opts mru ${MRU}"
fi
if [ -n "${MTU}" ] ; then
	opts="$opts mtu ${MTU}"
fi
if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}${REMIP}" ] ; then
	# if either IP address is set, the following will work.
	opts="$opts ${IP4ADDR}:${REMIP}"
fi
if is_yes "$IPV6_NETWORKING"; then
	if is_yes "$IPV6_PPP"; then
		if [ -n "${IP6ADDR}${REMIP6}" ] ; then
			opts="$opts ipv6 ${IP6ADDR},${REMIP6}"
		elif is_yes "$IPV6_CP_USEV4"; then
			opts="$opts ipv6cp-use-ipaddr"
		elif is_yes "$IPV6_CP_PERSISTENT"; then
			opts="$opts ipv6cp-use-persistent"
		fi
	elif is_no "$IPV6_PPP"; then
		opts="$opts noipv6"
	fi
elif is_no "$IPV6_NETWORKING"; then
	opts="$opts noipv6"
fi
if is_yes "${IPX_PPP}"; then
	opts="$opts ipx"
	if [ -n "${IPX_PPP_NETWORK}" ]; then
		opts="$opts ipx-network ${IPX_PPP_NETWORK}"
	fi
	if [ -n "${IPX_PPP_NODE}" ]; then
		opts="$opts ipx-node ${IPX_PPP_NODE}"
	fi
	if [ -n "${IPX_PPP_ROUTING}" ]; then
		opts="$opts ipx-routing ${IPX_PPP_ROUTING}"
	fi
fi

if [ -n "${PAPNAME}" ] ; then
	opts="$opts user ${PAPNAME}"
fi
if [ -n "${REMOTENAME}" ] ; then
	opts="$opts remotename ${REMOTENAME}"
fi
if is_yes "${DEBUG}"; then
	opts="$opts debug"
fi
if is_yes "${AUTH}"; then
	opts="$opts auth"
elif is_no "${AUTH}"; then
	opts="$opts noauth"
fi
if is_yes "$PLUGIN_IFCFG_PASSWORD" && [ -n "$PASSWORD" ]; then
	if [ -f "$CONFIG" ]; then
		ifcfg_password_config="$CONFIG"
	else
		ifcfg_password_config="/etc/sysconfig/interfaces/$CONFIG"
	fi
	opts="$opts plugin ifcfg-password.so ifcfg $ifcfg_password_config"
fi

if ! is_no "${UNIT}"; then
	UNIT=$(echo "${DEVICE}" | awk ' { gsub(/ppp/,NUL); print $0} ')
	opts="$opts unit ${UNIT}"
fi

MODEM="${MODEMPORT}"; export MODEM

(logger -p daemon.info -t ifup-ppp \
	"$(nls 'pppd started for %s on device %s at speed %s' "$DEVICE" \
	"$MODEMPORT" "${LINESPEED:-(unspecified)} on unit ${UNIT}")" &)&

if [ -n "${DATAFORCHAT}" ]; then
	export $DATAFORCHAT
fi
/usr/sbin/pppd $opts ${MODEMMODE} "${MODEMPORT}" ${LINESPEED} \
	ipparam ${DEVNAME} linkname ${DEVNAME} \
	${PPPOPTIONS}