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Файловый менеджер - Редактировать - /usr/sbin/pppoeconf

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#!/bin/sh # (c) Eduard Bloch <blade@debian.org>, Gregory Colpart <reg@evolix.fr> # LICENSE: GPL # Purpose: initial PPPoE configuration on Debian # Depends: ppp, whiptail, gettext, sed export TEXTDOMAINDIR="/usr/share/locale" export TEXTDOMAIN=pppoeconf export OPTSFILE="/etc/ppp/peers/dsl-provider" export REALINTFILE="/etc/network/interfaces" # IMPORTANT: Do not use gdialog unless it has been fixed! DIALOG=whiptail # Get -nox option to force ncurses use if [ "$1" = "-nox" ]; then export NOX=true shift fi # Set up (X)dialog - added by Fabian Franz <knx-ppp@fabian-franz.de> XDIALOG_HIGH_DIALOG_COMPAT=1 export XDIALOG_HIGH_DIALOG_COMPAT if [ -n "$DISPLAY" ] && [ -x /usr/bin/Xdialog ] && [ ! -n "$NOX" ]; then DIALOG="Xdialog" X11="-X" fi # SUID wrapper for KNOPPIX added by Klaus Knopper <knoppix@knopper.net> # mod. by EB PATH="/bin:/sbin:/usr/bin:/usr/sbin" export PATH . /usr/bin/gettext.sh # for non-root, try to reexec with sudo, warn otherwise if [ "`id -u`" != "0" ]; then # sudo only if which sudo >/dev/null && ( sudo -l -S </dev/null >/dev/null 2>&1 ) ; then exec sudo "$0" "$@" \|\| exit 1 elif which su-to-root >/dev/null; then exec su-to-root $X11 -c "$0" "$@" \|\| exit 1 elif [ -n "$X11" ] && which gksu >/dev/null; then exec gksu "$0" "$@" \|\| exit 1 else gettext "Please become root before running pppoeconf!" echo gettext "Press return to continue..." echo read enter exit 1 fi fi # EOF SUID wrapper modprobe -q pppoe # recent ppp packages have a PPPoE discovery helper program if test -x /usr/sbin/pppoe-discovery && test -e /proc/net/pppoe ; then kernel_pppoe=1 DISCOVERY_PROGRAM=pppoe-discovery else if test -x /usr/sbin/pppoe ; then DISCOVERY_PROGRAM=pppoe else gettext "Please install ppp package and enable pppoe support in the kernel, or install pppoe package!" echo gettext "Press return to continue..." echo read enter exit 1 fi fi export DISCOVERY_PROGRAM # create a default peers file if there is none if ! test -r $OPTSFILE ; then fresh_optsfile=1 cat <<EOM > $OPTSFILE # Minimalistic default options file for DSL/PPPoE connections noipdefault defaultroute replacedefaultroute hide-password #lcp-echo-interval 30 #lcp-echo-failure 4 noauth persist #mtu 1492 #persist #maxfail 0 #holdoff 20 EOM fi chmod 0640 $OPTSFILE chown root:dip $OPTSFILE # get all Ethernet interfaces if test "$" ; then list="$" force_manual=1 else list=$( LANG=C /bin/ip -f link -o addr list \| awk '/^[0-9]\:.link\/ether/{print $2}' \| grep -v irlan \| cut -f1 -d: ) fi if test "$list" ; then test "$DIALOG" = "whiptail" && escmsg=$(gettext 'Or press ESC to abort here.') number=`echo $list \| wc -w\| tr -d " "` INTFILE="`mktemp -t interfaces.pppoeconf.XXXXXX`" \|\| exit 1 export INTFILE cp $REALINTFILE $INTFILE # set up interfaces file if not present if ! grep -q "^[[:space:]]iface[[:space:]]\+dsl-provider" $INTFILE ; then printf '\niface dsl-provider inet ppp\nprovider dsl-provider\n' >> $INTFILE fi umask 177 # make a secure directory #TMP="`mktemp -d -p /etc/ppp`" TMP="`mktemp -d`" chmod 700 $TMP export TMP gettext ' Most providers send the needed login information per mail. Some providers describe it in odd ways, assuming the user to input the data in their "user-friendly" setup programs. But in fact, these applications generate usuall PPP user names and passwords from the entered data. You can find the real names too and input the correct data in the dialog box. For example, this are methods used some german providers: Sample username (alias "login" or "login name"): 11111111111 T-Online T-DSL: additional data: sample T-Onlinenummer: 222222222222 sample Mitbenutzer: 0001 complete username: 111111111111222222222222#0001@t-online.de Telekom Business Online (DSL): complete username: t-online-com/111111111111@t-online-com.de 1und1 uses another scheme (using above example): complete username: 1und1/11111111111 Cyberfun: complete username: sdt/11111111111 Komtel: additional data: downstream speed class: 768 complete username: 11111111111@FoniNet-768 Net Cologne: complete username: 11111111111@netcologne.de Q-DSL: complete username: 11111111111@q-dsl.de Versatel: complete username: 11111111111@VersaNet-1024k Webnetix: complete username: sdt/11111111111 ' > $TMP/namehelp.txt sectempfile="`mktemp -p $TMP`" export sectempfile trap "rm -rf '$TMP'" 0 HUP INT TRAP TERM # now, execute an AC lookup on each interface for mmm in '' ' -U ' ; do for iface in $list; do # use the first candidate only, this is done anyways, below if test -z "`grep -l AC $TMP/.pppoe 2>/dev/null\| cut -f1 -d"." \| head -n1`" ; then title=$(gettext 'SCANNING DEVICE') text=$(eval_gettext 'Looking for PPPoE Access Concentrator on $iface...') if test -n "$mmm" ; then mmode=$(gettext '(multi-modem mode)') fi touch $TMP/pppoe.scan ip link set $iface up ($DISCOVERY_PROGRAM $mmm -A -I $iface > $TMP/$iface.pppoe ; rm $TMP/pppoe.scan) & ( time=0 ; while test -f $TMP/pppoe.scan ; do time=`expr $time + 6`; echo $time; sleep 1; done ) \| $DIALOG --title "$title" --gauge "$text $mmode" 10 60 0 true fi done done cd "$TMP" if test "$force_manual" ; then iface=$1 else iface=`grep -l AC .pppoe\| sed "s/\.pppoe$//" \| head -n1` fi ifacenocomma=$(echo $iface \| sed -e 's/,/\\,/g') if test -z "$iface" ; then title=$(gettext 'NOT CONNECTED') text=$(eval_ngettext \ 'Sorry, I scanned $number interface, but the Access Concentrator of your provider did not respond. Please check your network and modem cables. Another reason for the scan failure may also be another running pppoe process which controls the modem.' \ 'Sorry, I scanned $number interfaces, but the Access Concentrator of your provider did not respond. Please check your network and modem cables. Another reason for the scan failure may also be another running pppoe process which controls the modem.' \ $number) $DIALOG --title "$title" --clear --msgbox "$text" 15 60 rm -rf "$TMP" exit 1 fi # title=$(gettext 'DSL CONNECTION FOUND') # text=$(eval_gettext 'I found an Access Concentrator on $iface. Should I setup PPPOE for this connection?') # $DIALOG --title "$title" --clear --yesno "$text" 15 60 # # STATUS: interface is $iface, we can continue if ! test "$fresh_optsfile" ; then title=$(gettext 'OKAY TO MODIFY') text=$(eval_gettext 'If you continue with this program, these configuration files will be modified : $OPTSFILE $REALINTFILE and /etc/ppp/-secrets. Please make sure that you have a backup copy before saying Yes. Continue with configuration?') $DIALOG --title "$title" --clear --yesno "$text" 22 70 case $? in 1) rm -rf "$TMP" exit 0 ;; 255) rm -rf "$TMP" exit 1 esac fi if ! grep -q "^[[:space:]]$allow-$\?$auto\\|hotplug$[[:space:]]\+$iface" $INTFILE ; then echo >> $INTFILE echo "auto $iface" >> $INTFILE fi if ! grep -q "^[[:space:]]iface[[:space:]]\+$iface" $INTFILE ; then echo "iface $iface inet manual" >> $INTFILE fi # if test "$?" = "0"; then if [ "$kernel_pppoe" ]; then # interface activation code - this sucks here, pppd plugin should do it as needed #sed -i -e "s,pre-up /sbin/ifconfig[[:space:]]\+[^[:space:]]\+[[:space:]]\+up.#.line.maintained.by.pppoeconf,pre-up /sbin/ifconfig $ifacenocomma up # line maintained by pppoeconf," $INTFILE # FIXME: Make sure that it gets added to correct iface stanza! (Because it's not always added above) PATTERN_PREUP_IFACE_LEGACY="pre-up /sbin/ifconfig[[:space:]]\+[^[:space:]]\+[[:space:]]\+up.#.line.maintained.by.pppoeconf" PATTERN_PREUP_IFACE="pre-up /bin/ip link set[[:space:]]\+[^[:space:]]\+[[:space:]]\+up.#.line.maintained.by.pppoeconf" REPLACE_PREUP_IFACE="pre-up /bin/ip link set $ifacenocomma up # line maintained by pppoeconf" if grep -q "$PATTERN_PREUP_IFACE_LEGACY" $INTFILE; then sed -i -e "s,$PATTERN_PREUP_IFACE_LEGACY,$REPLACE_PREUP_IFACE," $INTFILE elif grep -q "$PATTERN_PREUP_IFACE" $INTFILE; then sed -i -e "s,$PATTERN_PREUP_IFACE,$REPLACE_PREUP_IFACE," $INTFILE else sed -i -e "s,[^#]$iface dsl-provider.$,\1\n$REPLACE_PREUP_IFACE," $INTFILE fi # change peers config file, sanity check first # grep -q "^plugin.rp-pppoe.so" $OPTSFILE \|\| echo "plugin rp-pppoe.so $iface" >> $OPTSFILE if [ "${iface##eth}" = "" ]; then # Name is eth* grep -q "^[[:space:]]plugin.rp-pppoe.so" $OPTSFILE \|\| echo "plugin rp-pppoe.so $iface" >> $OPTSFILE else grep -q "^[[:space:]]plugin.rp-pppoe.so" $OPTSFILE \|\| echo "plugin rp-pppoe.so" >> $OPTSFILE grep -q "^[[:space:]]nic-$iface" $OPTSFILE \|\| echo "nic-$iface" >> $OPTSFILE fi # disable the pppoe tunnel command if grep -q '^[[:space:]]pty' $OPTSFILE ; then sed -i -e 's/^[[:space:]]pty/#pty/' $OPTSFILE fi # set the interface sed -i -e "s,^plugin.\+rp-pppoe.so[[:space:]]\+[^[:space:]],plugin rp-pppoe.so $ifacenocomma," $OPTSFILE sed -i -e "s,^nic-[[:alnum:]],nic-$ifacenocomma," $OPTSFILE else # sanity check first, fix the config file # disable all lines sed -i -e 's/^pty/#&/' $OPTSFILE # install alternative lines grep -q '^[[:space:]]#[[:space:]]pty.pppoe.-m.1452' $OPTSFILE \|\| echo '#pty "pppoe -I eth0 -T 80 -m 1452"' >> $OPTSFILE grep -q '^[[:space:]]#[[:space:]]pty.pppoe.-m.1412' $OPTSFILE \|\| echo '#pty "pppoe -I eth0 -T 80 -m 1412"' >> $OPTSFILE # activate or install default line before the question sed -i -e '/^[[:space:]]#[[:space:]]pty "pppoe -I.-T 80"/d' $OPTSFILE grep -q '^[[:space:]]pty' $OPTSFILE \|\| echo 'pty "pppoe -I eth0 -T 80"' >> $OPTSFILE # set the interface sed -i -e "s,-I[[:space:]][[:alnum:]],-I $ifacenocomma," $OPTSFILE fi # fix final newline test -e /etc/ppp/pap-secrets && ( [ $(tail -1 /etc/ppp/pap-secrets \| wc -l) -eq 0 ] \|\| echo >> /etc/ppp/pap-secrets ) test -e /etc/ppp/chap-secrets && ( [ $(tail -1 /etc/ppp/chap-secrets \| wc -l) -eq 0 ] \|\| echo >> /etc/ppp/chap-secrets ) # else # rm -rf "$TMP" # exit 1 # fi # ask about sane options #$DIALOG --title $"POPULAR OPTIONS" --clear --yesno $"Most people using popular dialup providers prefer the options 'noauth' and 'defaultroute' in their configuration and remove the 'nodetach' option. Further, for busy providers the lcp-echo-interval could be increased. Should I check your configuration file and change these settings where neccessary?" 22 70 title=$(gettext 'POPULAR OPTIONS') text=$(gettext "Most people using popular dialup providers prefer the options 'noauth' and 'defaultroute' in their configuration and remove the 'nodetach' option. Should I check your configuration file and change these settings where neccessary?") $DIALOG --title "$title" --clear --yesno "$text" 22 70 case $? in 0) grep -q '^[[:space:]]noauth' $OPTSFILE \|\| echo 'noauth' >> $OPTSFILE grep -q '^[[:space:]]defaultroute' $OPTSFILE \|\| echo 'defaultroute' >> $OPTSFILE sed -i -e "/^[[:space:]]nodetach./d" $OPTSFILE #sed -i -e "s/^lcp-echo-interval 20$/lcp-echo-interval 60/" $OPTSFILE ;; 255) rm -rf "$TMP" exit 1 ;; esac user=`grep ^user $OPTSFILE\|cut -f2 -d" " \| tr -d '"'` test -z "$user" && user="username" while test "$goahead" != "yes" ; do title=$(gettext 'ENTER USERNAME') text=$(gettext 'Please enter the username which you usually need for the PPP login to your provider in the input box below. If you wish to see the help screen, delete the username and press OK.') $DIALOG --nocancel --title "$title" --clear --inputbox "$text" 15 60 $user 2> "$sectempfile" user=`cat "$sectempfile"` case $? in 0) if test -z "$user" ; then $DIALOG --scrolltext --textbox "$TMP/namehelp.txt" 17 75 else sed -i -e '/^user ./d' $OPTSFILE echo "user \"$user\"" >> $OPTSFILE goahead="yes" export goahead fi ;; ) rm -rf "$TMP" exit 1 ;; esac done title=$(gettext 'ENTER PASSWORD') text=$(gettext 'Please enter the password which you usually need for the PPP login to your provider in the input box below. NOTE: you can see the password in plain text while typing.') $DIALOG --nocancel --title "$title" --clear --inputbox "$text" 15 60 2> "$sectempfile" pass=`cat "$sectempfile"` usernoslash=$(echo $user \| sed -e 's,/,\\/,') case $? in 0) sed -i -e "s/^$\"$usernoslash\"* .$/#\1/" /etc/ppp/pap-secrets echo "\"$user\" \"$pass\"" >> /etc/ppp/pap-secrets sed -i -e "s/^$\"$usernoslash\" .$/#\1/" /etc/ppp/chap-secrets echo "\"$user\" \"$pass\"" >> /etc/ppp/chap-secrets ;; ) rm -rf "$TMP" exit 1 ;; esac # ask about DNS title=$(gettext 'USE PEER DNS') text=$(gettext 'You need at least one DNS IP address to resolve the normal host names. Normally your provider sends you addresses of useable servers when the connection is established. Would you like to add these addresses automatically to the list of nameservers in your local /etc/resolv.conf file? (recommended)') $DIALOG --title "$title" --clear --yesno "$text" 15 60 case $? in 0) grep -q "^[[:space:]]usepeerdns" $OPTSFILE \|\| echo "usepeerdns" >> $OPTSFILE ;; 1) sed -i -e "/^[[:space:]]usepeerdns/d" $OPTSFILE ;; 255) rm -rf "$TMP" exit 1 ;; esac # ask about MSS limitation title=$(gettext 'LIMITED MSS PROBLEM') text=$(gettext "Many providers have routers that do not support TCP packets with a MSS higher than 1460. Usually, outgoing packets have this MSS when they go through one real Ethernet link with the default MTU size (1500). Unfortunately, if you are forwarding packets from other hosts (i.e. doing masquerading) the MSS may be increased depending on the packet size and the route to the client hosts, so your client machines won't be able to connect to some sites. There is a solution: the maximum MSS can be limited by pppoe. You can find more details about this issue in the pppoe documentation. Should pppoe clamp MSS at 1452 bytes? If unsure, say yes. (If you still get problems described above, try setting to 1412 in the dsl-provider file.)") $DIALOG --title "$title" --clear --yesno "$text" 22 70 case $? in 0) if [ "$kernel_pppoe" ]; then printf '#!/bin/sh\n# Enable MSS clamping (autogenerated by pppoeconf)\n\niptables -t mangle -o "$PPP_IFACE" --insert FORWARD 1 -p tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1400:65495 -j TCPMSS --clamp-mss-to-pmtu\n' > /etc/ppp/ip-up.d/0clampmss printf '#!/bin/sh\n# Disable MSS clamping (autogenerated by pppoeconf)\n\niptables -t mangle -L -n -v --line-numbers \| grep "TCPMSS.$PPP_IFACE.clamp" \| cut -f1 -d " " \| sort -r \| xargs -n1 -r iptables -t mangle -D FORWARD\n' > /etc/ppp/ip-down.d/0clampmss chmod 755 /etc/ppp/ip-up.d/0clampmss /etc/ppp/ip-down.d/0clampmss else # disable default line sed -i -e 's/^pty/#&/' $OPTSFILE # enable the one with our mss size sed -i -e 's/^#$pty.-m 1452.$/\1/' $OPTSFILE #rm -f "$sectempfile" fi ;; 255) rm -rf "$TMP" exit 1 ;; esac if test -z "`mount \| grep KNOPPIX`" ; then title=$(gettext 'DONE') text=$(gettext 'Your PPPD is configured now. Would you like to start the connection at boot time?') $DIALOG --title "$title" --clear --yesno "$text" 15 60 if test "$?" = "0"; then grep -q "^[[:space:]]auto.dsl-provider" $INTFILE \|\| sed -i -e 's/^[[:space:]]iface.dsl-provider/auto dsl-provider\n&/' $INTFILE else sed -i -e '/^[[:space:]]auto.*dsl-provider/d' $INTFILE fi fi cd / # end of story rm -rf "$TMP" chmod --reference=$REALINTFILE $INTFILE # check that final file is valid or original one was already invalid. otherwise ask what to do ifup -nai $INTFILE 2>/dev/null if test "$?" = "1" && (ifup -na 2>/dev/null; test "$?" = "0"); then title=$(gettext 'ERROR') text=$(eval_gettext 'The interfaces file generated by pppoeconf appears to be invalid. This is probably because pppoeconf is unable to handle your original interfaces file. Should pppoeconf nevertheless change your interfaces file with the one that appears to be invalid? If you agree, you will probably break your network connectivity after rebooting, and cause some local problems if lo is down. Your original interfaces file will be moved to $REALINTFILE~ so you can restore it. If not, you will have to make sure that $iface is configured before starting your DSL connection and start the connection manually. Note that this situation is not expected and you should consider submitting a bug report against pppoeconf including your original interfaces file and the one generated by pppoeconf.') $DIALOG --title "$title" --clear --defaultno --yesno "$text" 20 75 case $? in 0) mv -b $INTFILE $REALINTFILE \|\| exit 1 ;; 1) exit 0 ;; 255) exit 1 ;; esac else mv $INTFILE $REALINTFILE \|\| exit 1 fi title=$(gettext 'ESTABLISH A CONNECTION') text=$(gettext 'Now, you can make a DSL connection with "pon dsl-provider" and terminate it with "poff". Would you like to start the connection now?') $DIALOG --title "$title" --clear --yesno "$text" 15 60 case $? in 0) cd / pon dsl-provider title=$(gettext 'CONNECTION INITIATED') text=$(gettext 'The DSL connection has been triggered. You can use the "plog" command to see the status or "ip addr show ppp0" for general interface info.') $DIALOG --title "$title" --clear --msgbox "$text" 10 60 ;; 1) exit 0 ;; 255) exit 1 ;; esac else title=$(gettext 'NO INTERFACE FOUND') text=$(gettext 'Sorry, no working ethernet card could be found.') $DIALOG --title "$title" --clear --msgbox "$text" 20 70 exit 0 fi

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