net in gentoo

 #!/sbin/runscript
# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# Author:  Martin Schlemmer <azarah@gentoo.org>
# Credits:  To all those I got ideas from :)
#
# $Header: /home/cvsroot/gentoo-x86/net-dialup/ppp/files/net.ppp0,v 1.3 2003/09/06 11:11:27 seemant Exp $

# NB: Config is in /etc/conf.d/net.$IFACE


# Misc internal variables
CMD_LINE=""
FUNCT="$2"
TEMPLATEDIR="/etc/ppp"

checkconfig() {

        if [ ! -x "$(which pppd)" -o ! -x "$(which chat)" ]
        then
                eerror "pppd and chat needs to be installed"
                return 1
        fi

        if [ -e "/var/run/ppp-${IFACE}.pid" -o -e "/var/run/${IFACE}.pid" ] && \
           [ "${FUNCT}" = "start" ]
        then
                eerror "ppp0 is already up"
                return 1
        fi
}

start() {

        checkconfig || return 1

        setup_cmd_line
        setup_cfg_files

        ebegin "Bringing ${IFACE} up"
        if [ -x "$(which pppd)" ]
        then

                if [ "${DEFROUTE}" = "yes" ]
                then
                        [ -n "$(/sbin/route | egrep 'default')" ] && route del default
                fi
                # Added hide-password here, can't be too sure...
                /usr/sbin/pppd ${CMD_LINE} ${MODEMPORT} ${LINESPEED} \
                        ipparam ${IFACE} linkname ${IFACE} call ${PEER} \
                        noauth ${PPPOPTIONS} hide-password
        fi
        eend
}

stop() {

        checkconfig || return 1

        ebegin "Bringing ${IFACE} down"
        if [ -x "$(which ifconfig)" ]
        then

                if [ -z "$(/sbin/ifconfig | egrep "${IFACE}")" ]
                then
                        ewarn "Interface seems to be down already"
                        # We should return 0 here, else svc_stop() will not remove
                        # the 'started' symlink ...
                        return 0
                fi

#               /sbin/ifconfig ${IFACE} down
                if [ -e /var/run/ppp-${IFACE}.pid ]
                then
                        kill $(egrep -v "${IFACE}" /var/run/ppp-${IFACE}.pid)

                elif [ -e /var/run/${IFACE}.pid ]
                then
                        kill $(egrep -v "${IFACE}" /var/run/${IFACE}.pid)
                fi
        fi
        eend
}

setup_cmd_line() {

        CMD_LINE="lock"

        if [ "${DEBUG}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} debug"
        fi

        if [ "${PERSIST}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} persist holdoff ${RETRYTIMEOUT}"
        fi

        if [ "${DEFROUTE}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} defaultroute"
        fi

        if [ "${HARDFLOWCTL}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} modem crtscts"
        fi

        if [ "${ESCAPECHARS}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} asyncmap 00000000"
        fi

        if [ "${PEERDNS}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} usepeerdns"
        fi

        if [ -n "${IPADDR}${REMIP}" ]
        then
                CMD_LINE="${CMD_LINE} ${IPADDR}:${REMIP}"
        fi

        if [ -n "${NETMASK}" ]
        then
                CMD_LINE="${CMD_LINE} netmask ${NETMASK}"
        fi

        if [ -n "${MRU}" ]
        then
                CMD_LINE="${CMD_LINE} mru ${MRU}"
        fi

        if [ -n "${MTU}" ]
        then
                CMD_LINE="${CMD_LINE} mtu ${MTU}"
        fi

        if [ -n "${USERNAME}" ]
        then
                CMD_LINE="${CMD_LINE} user ${USERNAME} remotename ${PEER}"
        fi

        if [ "${ONDEMAND}" = "yes" ]
        then
                CMD_LINE="${CMD_LINE} demand ktune idle ${IDLETIMEOUT}"
                CMD_LINE="${CMD_LINE} holdoff ${RETRYTIMEOUT}"
        fi
}

setup_cfg_files() {

        if [ "${AUTOCFGFILES}" = "yes" ]
        then
                if [ -n "${NUMBER}" ]
                then
                        # Setup the peers file
                        echo "connect '/usr/sbin/chat -v -f /etc/ppp/chat-${PEER}'" \
                                >/etc/ppp/peers/${PEER}
                fi

                # Setup the secrets files
                echo "\"${USERNAME}\" ${PEER} \"${PASSWORD}\"" >/etc/ppp/chap-secrets
                chmod 600 /etc/ppp/chap-secrets
                echo "\"${USERNAME}\" ${PEER} \"${PASSWORD}\"" >/etc/ppp/pap-secrets
                chmod 600 /etc/ppp/pap-secrets

                # Setup the chat file
                if [ -n "${INITSTRING}" ]
                then
                        sed -e "9i\\'OK\' \'${INITSTRING}\'" \
                                -e "s:\$NUMBER:${NUMBER}:" \
                                ${TEMPLATEDIR}/chat-default \
                                >/etc/ppp/chat-${PEER}
                else
                        sed -e "s:\$NUMBER:${NUMBER}:" \
                                ${TEMPLATEDIR}/chat-default \
                                >/etc/ppp/chat-${PEER}
                fi

                # Setup the ip-scripts so long
                echo '#!/bin/sh' >/etc/ppp/ip-up
                chmod 700 /etc/ppp/ip-up
                echo '#!/bin/sh' >/etc/ppp/ip-down
                chmod 700 /etc/ppp/ip-down

                # Setup if-up and if-down
                if [ -x ${FWSCRIPT} ]
                then
                        echo "${FWSCRIPT} start" >>/etc/ppp/ip-up
                        echo "${FWSCRIPT} stop" >>/etc/ppp/ip-down
                fi

                if [ "${PEERDNS}" = "yes" ]
                then
                        # ip-up: add the server supplied DNS entries to
                        # /etc/resolv.conf
                        echo "/bin/cp -f /etc/resolv.conf /etc/resolv.conf.old" \
                                >>/etc/ppp/ip-up
                        echo "/bin/cat /etc/ppp/resolv.conf >> /etc/resolv.conf" \
                                >>/etc/ppp/ip-up
                        # Change perms because it b0rked kppp
                        echo "chmod 640 /etc/resolv.conf" >>/etc/ppp/ip-up

                        # ip-down: restore original /etc/resolv.conf
                        echo "/bin/mv -f /etc/resolv.conf.old /etc/resolv.conf" \
                                >>/etc/ppp/ip-down
                        echo "chmod 640 /etc/resolv.conf" >>/etc/ppp/ip-down
                fi

                echo "[ -f /etc/ppp/ip-up.local ] && . /etc/ppp/ip-up.local" \
                        >>/etc/ppp/ip-up
                echo "[ -f /etc/ppp/ip-down.local ] && . /etc/ppp/ip-down.local" \
                        >>/etc/ppp/ip-down
        fi
}


# vim:ts=4