#!/bin/bash
-PPPD_PIDFILE=/var/run/umts_pppd.pid
-
-PPPD=pppd
STROK="remote IP address"
-
-PPP_INT=ppp0
-
GCOM=""
-
LOGF="/tmp/umtslogs"
-
+PPPD_PIDFILE="/var/run/umts_pppd.pid"
DESTS_FILE="/tmp/umts_dest_file"
-
FILE_TEMP_NID="/tmp/umts_temp_nid"
-
FILE_UMTS_INT="/tmp/umts_dev"
+PPP_INT=ppp0
+PPPD=pppd
function set_umts_dev(){
- echo $1 > $FILE_UMTS_INT
+ local umts_dev=$1
+ echo $umts_dev > $FILE_UMTS_INT
}
function get_umts_dev(){
- cat $FILE_UMTS_INT
+ if [ -e $FILE_UMTS_INT ]; then
+ cat $FILE_UMTS_INT
+ fi
}
-
-function start_gcom(){
- if ! $GCOM -d `get_umts_dev`; then
- return 1;
- fi
-
- return 0
+function unset_umts_dev(){
+ rm -f $FILE_UMTS_INT
}
-function init(){
- local found=1
- modprobe nozomi
- modprobe serial_cs
+function init_umts(){
+ local found=1
if [ -f /usr/bin/gcom ]; then
GCOM=/usr/bin/gcom
return 1;
fi
+ unset_umts_dev
+
for i in /dev/umts_modem /dev/umts_modem1; do
echo "Testing if the umts interface is present on the device $i..."
- if $GCOM -d $i; then
- found=0
- set_umts_dev $i
- break
+ if [ -e $i ]; then
+ if $GCOM -d $i; then
+ found=0
+ set_umts_dev $i
+ break
+ fi
fi
done
if ! [ $found == 0 ]; then
- echo "I couldn't find the umts device; make a symlink from it to /dev/umts_modem"
+ echo "I couldn't find the umts device. Make a symlink from it to /dev/umts_modem."
return 1
fi
- if ! grep umts_table /etc/iproute2/rt_tables > /dev/null 2>&1; then
+ if ! grep "umts_table" /etc/iproute2/rt_tables > /dev/null 2>&1; then
echo "20 umts_table" >> /etc/iproute2/rt_tables
fi
#called when the connection is started
function conn_on(){
local sliver=$1
- #local sliver_nid=$2
#DESTS_FILE contains added destinations
rm -f $DESTS_FILE
- touch $DESTS_FILE > /dev/null 2>&1
+ touch $DESTS_FILE
set_temp_nid $sliver_nid
#called when the connection is terminated
function conn_off(){
local sliver=$1
- #local sliver_nid=$2
unset_routes $sliver
return 0;
fi
- if ! [ -c `get_umts_dev` ]; then
- echo "Umts interface not present"
+ if [[ `get_umts_dev` == "" ]]; then
+ if [[ init_umts != 0 ]]; then
+ return 1
+ fi
+ fi
+
+ if ! [ -e `get_umts_dev` ]; then
+ echo "Umts interface is not present"
return 1
fi
echo $! > $PPPD_PIDFILE
-
sleep 5s; #waiting for the interface to establish the link
if grep "$STROK" $LOGF >/dev/null 2>&1; then
-
conn_on $sliver $sliver_nid
else
#second try
function stop_umts(){
local sliver=$1
+ local sliver_nid=`get_nid $sliver`
if ! [ -e $PPPD_PIDFILE ]; then
echo "Disconnected"
PID=`cat $PPPD_PIDFILE`;
if [ -d /proc/$PID ] && grep $PPPD /proc/$PID/cmdline >/dev/null 2>&1; then
- #del_interface $1;
- conn_off $sliver `get_nid $sliver`
+ conn_off $sliver $sliver_nid
kill $PID;
- sleep 5;
+ sleep 4;
fi
if status_umts; then
local temp_nid=`get_temp_nid`
local ppp_addr=`get_ppp_address`
- #remarking of packets to trigger rerouting and SNAT
+ #remarking of packets, to trigger rerouting, and SNAT
iptables -t mangle -A OUTPUT -j MARK --copy-xid 0x00
iptables -t mangle -A OUTPUT -m mark --mark $sliver_nid -j MARK --set-mark $temp_nid
- iptables -t nat -A POSTROUTING -o $PPP_INT -j SNAT --to-source `get_ppp_address`
+ iptables -t nat -A POSTROUTING -o $PPP_INT -j SNAT --to-source $ppp_addr
iptables -t mangle -I POSTROUTING 1 -m mark --mark $temp_nid -j MARK --set-mark $sliver_nid
#enable the explicit bind to the ppp interface
ip route flush table umts_table >/dev/null 2>&1
- ip rule add from $ppp_addr fwmark `get_temp_nid` table umts_table >/dev/null 2>&1
- ip route add default dev $PPP_INT src `get_ppp_address` table umts_table >/dev/null 2>&1
+ ip rule add from $ppp_addr fwmark $temp_nid table umts_table >/dev/null 2>&1
+ ip route add default dev $PPP_INT src $ppp_addr table umts_table >/dev/null 2>&1
ip route flush cache >/dev/null 2>&1
}
#remarking and SNAT removed
iptables -t mangle -D OUTPUT -j MARK --copy-xid 0x00
iptables -t mangle -D OUTPUT -m mark --mark $sliver_nid -j MARK --set-mark $temp_nid
- iptables -t nat -D POSTROUTING -o $PPP_INT -j SNAT --to-source `get_ppp_address`
+ iptables -t nat -D POSTROUTING -o $PPP_INT -j SNAT --to-source $ppp_addr
iptables -t mangle -D POSTROUTING -m mark --mark $temp_nid -j MARK --set-mark $sliver_nid
#disable the explicit bind to the ppp interface
- ip rule del from $ppp_addr fwmark `get_temp_nid` table umts_table >/dev/null 2>&1
- ip route del default dev $PPP_INT src `get_ppp_address` table umts_table >/dev/null 2>&1
+ ip rule del from $ppp_addr fwmark $temp_nid table umts_table >/dev/null 2>&1
+ ip route del default dev $PPP_INT src $ppp_addr table umts_table >/dev/null 2>&1
ip route flush cache >/dev/null 2>&1
}
function add_destination(){
local dest="$1"
local sliver=$2
-
local sliver_nid=`get_nid $sliver`
-
local temp_nid=`get_temp_nid`
if [[ ! $dest ]]; then return 1; fi
function del_destination(){
local dest="$1"
local sliver=$2
-
local sliver_nid=`get_nid $sliver`
-
local temp_nid=`get_temp_nid`
if [[ ! $dest ]]; then return 1; fi
- #old - if ip route del to "$dest" dev $PPP_INT >/dev/null 2>&1; then
if ip rule del to "$dest" fwmark $temp_nid table umts_table >/dev/null 2>&1; then
return 0;
else
local sliver_nid=$1
local temp_nid=$((0x20000+$sliver_nid))
- #k=0
- #temp_nid=$sliver_nid
-
+ #k=0
#while grep :$temp_nid: /etc/passwd; do
# temp_nid=$((temp_nid+1))
# k=$((k+1))
# exit 1
# fi
#done
-
echo $temp_nid > $FILE_TEMP_NID
}
-
+# checks ip addresses
function valid_dotted_quad(){
oldIFS=$IFS
IFS=.
git://git.onelab.eu / planetlab-umts-tools.git / blobdiff