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Initial commit of conn. - conn - A script repository to manage connections in Linux.
---
commit e28b32c29674e44dd34bc01486b781c8037a650a
Author: Christoph Lohmann <20h@r-36.net>
Date: Mon, 21 Feb 2011 23:12:07 +0100
Initial commit of conn.
Diffstat:
LICENSE | 21 +++++++++++++++++++++
Makefile | 60 +++++++++++++++++++++++++++++++
README.md | 56 +++++++++++++++++++++++++++++++
TODO.md | 14 ++++++++++++++
bin/conn | 5 +++++
config.mk | 9 +++++++++
etc/conn/common.sh | 115 +++++++++++++++++++++++++++++++
etc/conn/eth/README.md | 6 ++++++
etc/conn/eth/run.sh | 38 +++++++++++++++++++++++++++++++
etc/conn/run.sh | 31 +++++++++++++++++++++++++++++++
etc/conn/wifi/README.md | 9 +++++++++
etc/conn/wifi/networks.tbl | 2 ++
etc/conn/wifi/networks/skkmswp.sh | 19 +++++++++++++++++++
etc/conn/wifi/run.sh | 40 +++++++++++++++++++++++++++++++
etc/conn/wifi/wlan0-action.sh | 41 +++++++++++++++++++++++++++++++
etc/conn/wwan/README.md | 11 +++++++++++
etc/conn/wwan/f3507g-x201-init | 47 +++++++++++++++++++++++++++++++
etc/conn/wwan/f3507g-x201-usbnet | 26 ++++++++++++++++++++++++++
etc/conn/wwan/run.sh | 20 ++++++++++++++++++++
etc/conn/wwan/wwan0-run.sh | 34 +++++++++++++++++++++++++++++++
20 files changed, 604 insertions(+), 0 deletions(-)
---
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,21 @@
+MIT/X Consortium License
+
+© 2011 Christoph Lohmann <20h@r-36.net>
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+tto deal in the Software without restriction, including without limitation
+tthe rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/Makefile b/Makefile
@@ -0,0 +1,60 @@
+# conn - connection manager
+# See LICENSE file for copyright and license details.
+
+include config.mk
+
+SRC = dwm.c
+OBJ = ${SRC:.c=.o}
+
+all: options dwm
+
+options:
+ @echo dwm build options:
+ @echo "CFLAGS = ${CFLAGS}"
+ @echo "LDFLAGS = ${LDFLAGS}"
+ @echo "CC = ${CC}"
+
+.c.o:
+ @echo CC $<
+ @${CC} -c ${CFLAGS} $<
+
+${OBJ}: config.h config.mk
+
+config.h:
+ @echo creating $@ from config.def.h
+ @cp config.def.h $@
+
+dwm: ${OBJ}
+ @echo CC -o $@
+ @${CC} -o $@ ${OBJ} ${LDFLAGS}
+
+clean:
+ @echo cleaning
+ @rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
+
+dist: clean
+ @echo creating dist tarball
+ @mkdir -p dwm-${VERSION}
+ @cp -R LICENSE Makefile README config.def.h config.mk \
+ dwm.1 ${SRC} dwm-${VERSION}
+ @tar -cf dwm-${VERSION}.tar dwm-${VERSION}
+ @gzip dwm-${VERSION}.tar
+ @rm -rf dwm-${VERSION}
+
+install: all
+ @echo installing executable file to ${DESTDIR}${PREFIX}/bin
+ @mkdir -p ${DESTDIR}${PREFIX}/bin
+ @cp -f dwm ${DESTDIR}${PREFIX}/bin
+ @chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
+ @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
+ @mkdir -p ${DESTDIR}${MANPREFIX}/man1
+ @sed "s/VERSION/${VERSION}/g" < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
+ @chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1
+
+uninstall:
+ @echo removing executable file from ${DESTDIR}${PREFIX}/bin
+ @rm -f ${DESTDIR}${PREFIX}/bin/dwm
+ @echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
+ @rm -f ${DESTDIR}${MANPREFIX}/man1/dwm.1
+
+.PHONY: all options clean dist install uninstall
diff --git a/README.md b/README.md
@@ -0,0 +1,56 @@
+# Conn - connection scripts
+
+This collection of scripts is intended to standardize the way to handle
+many different connections in a Unix like environment.
+
+## Dependencies
+
+* bash (Could be easily rewritten.)
+* dhcpcd
+* wpa-supplicant
+* ping
+* awk
+* sed
+* various utilities for specific connection types
+
+## Architecture
+
+/usr/bin/conn The main script, which accesses all functionality.
+
+/etc/conn/run.sh The script which conn calls and does the redirection
+ to the connections.
+
+/etc/conn The base directory for all logic behind connd.
+
+/etc/conn/common.sh Common functions all scripts can use.
+
+/etc/conn/$conn These are the connection types which are available.
+
+/etc/conn/$conn/run.sh This script is run in every connection, when the
+ connection is invoked by the run.sh in the main
+ etc directory.
+
+/etc/conn/$conn/$files These files depend solely on the connection, which
+ is served. Look at them for details.
+
+### Calltree
+* conn
+ * conn/run.sh
+ * conn/$conn/run.sh
+ * conn/$conn/$files
+
+### Examples
+
+ % conn -l
+ Available network types:
+ eth
+ wifi
+ wwan
+ % conn -s wifi
+ % conn -u wifi
+ % conn -k wifi
+ % conn -s eth
+ % conn -k eth
+ % conn -s wwan
+
+
diff --git a/TODO.md b/TODO.md
@@ -0,0 +1,14 @@
+## TODO
+
+* add state
+ * based on the state connections can be automatically started
+ or killed
+ * let's see, if a running daemon can be avoided
+
+* add support for other connection types
+ * bluetooth
+ * tunnels on top of given connections
+ * VPN
+ * DNStunnel
+ * ICMPtunnel
+
diff --git a/bin/conn b/bin/conn
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+cd /etc/conn
+./run.sh $*
+
diff --git a/config.mk b/config.mk
@@ -0,0 +1,9 @@
+# conn version
+VERSION = 0.2
+
+# Customize below to fit your system
+
+# paths
+PREFIX = /usr
+MANPREFIX = ${PREFIX}/share/man
+
diff --git a/etc/conn/common.sh b/etc/conn/common.sh
@@ -0,0 +1,115 @@
+#!/bin/sh
+
+LOGGING=1
+
+## Common dirs
+RUNDIR="/var/run/conn"
+ETCDIR="/etc/conn"
+WIFIDIR="${ETCDIR}/wifi"
+WWANDIR="${ETCDIR}/wwan"
+ETHDIR="${ETCDIR}/eth"
+
+mkpaths() {
+ for i in $RUNDIR $ETCDIR $WIFIDIR $WWANDIR \
+ $ETHDIR;
+ do
+ [ ! -e $i ] && mkdir -p $i
+ done
+}
+mkpaths
+
+## WPA handling
+WPAPID="${RUNDIR}/wpa_supplicant.pid"
+WPACONF="/etc/wpa_supplicant.conf"
+WPACMD="/usr/sbin/wpa_supplicant -B -D wext -c ${WPACONF}"
+WPACLIPID="${RUNDIR}/wpa_cli.pid"
+WPACLICMD="/usr/sbin/wpa_cli"
+WPACLIREQ="/usr/sbin/wpa_cli"
+
+startwpa() {
+ $WPACMD -P $WPAPID.$1 -i $1
+ $WPACLICMD -P $WPACLIPID.$1 -i $1 -a \
+ $WIFIDIR/$1-action.sh 2>&1 >/dev/null &
+}
+
+hupwpa() {
+ [ -e $WPAPID.$1 ] && /bin/kill -HUP `cat WPAPID.$1`
+}
+
+stopwpa() {
+ [ -e $WPAPID.$1 ] && /bin/kill -KILL `cat $WPAPID.$1`
+ [ -e $WPACLIPID.$1 ] && /bin/kill -KILL `cat $WPACLIPID.$1`
+}
+
+# $WPA_ID must be set from within the calling action script.
+getssid() {
+ $WPACLIREQ -i $1 list_networks \
+ | grep "^$WPA_ID" \
+ | awk -F'\t' '{print $2}'
+}
+
+## DHCP handling
+DHCPCMD="/sbin/dhcpcd -L"
+DHCPRELEASECMD="/sbin/dhcpcd -k"
+DHCPKILLCMD="/sbin/dhcpcd -x"
+
+startdhcp() {
+ $DHCPRELEASECMD $1 2>&1 >/dev/null
+ $DHCPCMD $1 2>&1 >/dev/null
+}
+
+stopdhcp() {
+ $DHCPKILLCMD $1 2>&1 >/dev/null
+}
+
+## Connection handling
+runconnection() {
+ SRVDIR="${ETCDIR}/$1"
+ SRVRUN="${ETCDIR}/$1/run.sh"
+ shift 1
+ if [ -e $SRVRUN ];
+ then
+ cd $SRVDIR
+ sh $SRVRUN $*
+ fi
+}
+
+## Interface handling
+PINGPID="${RUNDIR}/pingd.pid"
+# Should be available everywhere.
+PINGHOST="8.8.8.8"
+PINGCMD="/bin/ping -q"
+startpingd() {
+ $PINGCMD $PINGHOST 2>&1 >/dev/null &
+
+ echo $! > $PINGPID.$1
+}
+
+stoppingd() {
+ /bin/kill -KILL `cat $PINGPID.$1`
+ rm $PINGPID.$1
+}
+
+getinterface() {
+ basename $1 | awk -F'-' '{print $1}'
+}
+
+## Link handling
+setlinkup() {
+ ip link set $1 up
+}
+
+setlinkdown() {
+ ip link set $1 down
+}
+
+islinkup() {
+ state=`ip link show $1 2>/dev/null | grep ',UP'`
+ if [ "$state" == "" ];
+ then
+ return 1
+ else
+ return 0
+ fi
+}
+
diff --git a/etc/conn/eth/README.md b/etc/conn/eth/README.md
@@ -0,0 +1,6 @@
+## Ethernet - stable and gross
+
+Much could be done here, but the most obvious setup is to run dhcp on it.
+
+A combination with ifplugd could be done.
+
diff --git a/etc/conn/eth/run.sh b/etc/conn/eth/run.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+. ../common.sh
+
+if [ "$2" == "" ];
+tthen
+ interface="eth0"
+else
+ interface=$2
+fi
+
+case "$1" in
+ -s)
+ if ! islinkup $interface;
+ then
+ setlinkup $interface
+ fi
+ startdhcp $interface
+ exit $?
+ ;;
+ -k)
+ stopdhcp $interface
+ islinkup $interface && setlinkdown $interface
+ exit $?
+ ;;
+ -u)
+ exit $?
+ ;;
+ -r)
+ $0 -k $interface;
+ $0 -s $interface;
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-u|-r] interface"
+ exit 1
+ ;;
+esac
+
diff --git a/etc/conn/run.sh b/etc/conn/run.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+. ./common.sh
+
+connection=$2
+
+case "$1" in
+ -s|-k|-u)
+ arg=$1
+ shift 2
+ runconnection $connection $arg $*
+ exit $?
+ ;;
+ -l)
+ echo "Available network types:"
+ for i in `ls -d */ | sed 's~/~~g'`;
+ do
+ echo $i
+ done
+ ;;
+ -r)
+ shift 1
+ $0 -k $*
+ $0 -s $*
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-u|-r|-l] connection [args ...]"
+ exit 1
+ ;;
+esac
+
diff --git a/etc/conn/wifi/README.md b/etc/conn/wifi/README.md
@@ -0,0 +1,9 @@
+# Wifi resolving
+
+1. run.sh starts wpa-supplicant and wpa-cli.
+2. wpa-cli runs $interface-action.sh on an event.
+3. $interface-action.sh greps in networks.tbl for the ssid of the
+ relevant network and calls the given script.
+4. The script networks/$script is run and gets the interface and
+ the changed state as argument.
+
diff --git a/etc/conn/wifi/networks.tbl b/etc/conn/wifi/networks.tbl
@@ -0,0 +1,2 @@
+skkmswp.sh SKKMSWP
+
diff --git a/etc/conn/wifi/networks/skkmswp.sh b/etc/conn/wifi/networks/skkmswp.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+interface="$1"
+
+case "$2" in
+ CONNECTED)
+ ip addr add 192.168.1.6/24 dev $interface \
+ brd 192.168.1.255
+ ip route add default via 192.168.1.2
+ echo "nameserver 8.8.8.8" > /etc/resolv.conf
+ ;;
+ DISCONNECTED)
+ ip addr del 192.168.1.6/24 dev $interface
+ ;;
+ *)
+ exit 1;
+ ;;
+esac
+
diff --git a/etc/conn/wifi/run.sh b/etc/conn/wifi/run.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+. ../common.sh
+
+if [ "$2" == "" ];
+tthen
+ interface="wlan0"
+else
+ interface=$2
+fi
+
+case "$1" in
+ -s)
+ if ! islinkup $interface;
+ then
+ setlinkup $interface
+ fi
+ startwpa $interface
+ exit $?
+ ;;
+ -k)
+ stopwpa $interface
+
+ islinkup $interface && setlinkdown $interface
+ exit $?
+ ;;
+ -u)
+ hupwpa $interface
+ exit $?
+ ;;
+ -r)
+ $0 -k $interface;
+ $0 -s $interface;
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-u|-r] interface"
+ exit 1
+ ;;
+esac
+
diff --git a/etc/conn/wifi/wlan0-action.sh b/etc/conn/wifi/wlan0-action.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+. ../common.sh
+
+interface="$1"
+action="$2"
+ssid=`getssid $interface`
+
+if [ "$LOGGING" == "1" ];
+tthen
+ logger -t "$interface-action" "Got request for $interface $ssid $action."
+fi
+
+getscript() {
+ cat networks.tbl \
+ | grep "$ssid\$" \
+ | awk -F'\t' '{print $1}'
+}
+
+script=`getscript $ssid`
+if [ "$script" != "" ];
+tthen
+ cd networks
+ ./$script $interface $action
+ exit $?
+fi
+
+case "$action" in
+ CONNECTED)
+ startdhcp $interface
+ ;;
+ DISCONNECTED)
+ stopdhcp $interface
+ ;;
+ *)
+ exit 1;
+ ;;
+esac
+
+exit 0
+
diff --git a/etc/conn/wwan/README.md b/etc/conn/wwan/README.md
@@ -0,0 +1,11 @@
+# WWAN - the never ending story
+
+Wwan on Linux depends on the hardware you are using and how to initialize
+it. On my Laptop (X200), this is an Ericsson F3507g modem, which is setup
+via AT commands and exports an usb ethernet device for communication.
+
+Since it's my only device, the script for init and the usbnet are run
+in serial, after which dhcp is run on it. Besides this a ping is started,
+which increases the stability of a wwan connection; at least here in Ger-
+many.
+
diff --git a/etc/conn/wwan/f3507g-x201-init b/etc/conn/wwan/f3507g-x201-init
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+CONTROL_DEVICE="/dev/ttyACM1"
+PIN="XXXXX"
+APN="surfo2"
+
+case "$1" in
+ -s)
+ modprobe zaurus
+
+ echo -n "Powering up F3507g card.."
+ echo enable > /proc/acpi/ibm/wan
+ rfkill unblock wwan
+ while [ ! -c $CONTROL_DEVICE ]; do sleep 0.5; echo -n "."; done
+ echo "done"
+ echo -n "Turning on F3507g card..."
+ sleep 5
+ if [ -n "$PIN" ]; then
+ echo -n "PIN..."
+ /usr/sbin/chat -v "" "AT+CPIN?" "SIM PIN" "AT" "OK" "AT+CPIN=\"$PIN\"" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
+ fi
+ echo -n "CFUN..."
+ /usr/sbin/chat -v "" "AT+CPIN?" "OK" "AT+CFUN=1" "+PACSP0" "AT" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
+ echo "done"
+ ;;
+ -k)
+ echo -n "Turning off F3507g card..."
+ /usr/sbin/chat -v "" "AT+CFUN=4" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
+ echo "done"
+ echo -n "Powering down F3507g card.."
+ rfkill block wwan
+ echo disable > /proc/acpi/ibm/wan
+ while [ -c $CONTROL_DEVICE ]; do sleep 0.5; echo -n "."; done
+ echo "done"
+
+ rmmod zaurus
+ rmmod cdc_ether
+ ;;
+ -r)
+ $0 -k
+ $0 -s
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-r]"
+esac
+exit 0
+
diff --git a/etc/conn/wwan/f3507g-x201-usbnet b/etc/conn/wwan/f3507g-x201-usbnet
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+CONTROL_DEVICE="/dev/ttyACM1"
+APN="surfo2"
+
+case "$1" in
+ -s)
+ echo -n "Starting usbnet connection..."
+ /usr/sbin/chat -v "" "AT+CGDCONT=1,\"IP\",\"$APN\"" "OK" "AT*ENAP=1,1" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
+ sleep 1
+ echo "done"
+ ;;
+ -k)
+ echo -n "Stopping usbnet connection..."
+ /usr/sbin/chat -v "" "AT*ENAP=0" "OK" > $CONTROL_DEVICE < $CONTROL_DEVICE
+ echo "done"
+ ;;
+ -r)
+ $0 -k
+ $0 -s
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-r]"
+esac
+exit 0
+
diff --git a/etc/conn/wwan/run.sh b/etc/conn/wwan/run.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+. ../common.sh
+
+if [ "$2" == "" ];
+tthen
+ interface="wwan0"
+else
+ interface="$2"
+fi
+
+iffile="${WWANDIR}/${interface}-run.sh"
+
+if [ ! -e $iffile ];
+tthen
+ exit 1
+fi
+
+$iffile $1
+
diff --git a/etc/conn/wwan/wwan0-run.sh b/etc/conn/wwan/wwan0-run.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+. ../common.sh
+
+interface=`getinterface $0`
+
+case "$1" in
+ -s)
+ ${WWANDIR}/f3507g-x201-init -s
+ ${WWANDIR}/f3507g-x201-usbnet -s
+ startdhcp $interface
+ startpingd $interface
+ exit $?
+ ;;
+ -k)
+ stoppingd $interface
+ stopdhcp $interface
+ ${WWANDIR}/f3507g-x201-usbnet -k
+ ${WWANDIR}/f3507g-x201-init -k
+ exit $?
+ ;;
+ -u)
+ exit 0
+ ;;
+ -r)
+ $0 -k $interface;
+ $0 -s $interface;
+ ;;
+ *)
+ echo "usage: $0 [-s|-k|-u|-r] interface"
+ exit 1
+ ;;
+esac
+
.