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--- internet_connection_watchdog [17.06.2018 18:49] – created Pascal Suter
+++ internet_connection_watchdog [17.06.2018 22:21] (current) – [GSM Link] Pascal Suter
@@ Line 3: / Line 3: @@
 so far, this is just a collection of snippets of information and links, i'll write it up into a nice article one day, but not today ;)
+===== software installation =====
+  apt update && apt install wvdial gammu gammu-smsd picocom
 ===== SMS =====
@@ Line 8: / Line 11: @@
   * Hardware: TP-Link MA260
   * on the tp-link stick the last serial device seems to be the one that can be used for sms (''gammu identify'' only gets information from that device). <code>gammu-detect | grep -B1 TP-LINK | grep ttyUSB | tail -n 1</code> to get the device name for the config
+  * ''/etc/gammu-smsdrc.template''<code># Configuration file for Gammu SMS Daemon
+# Gammu library configuration, see gammurc(5)
+[gammu]
+port = %PORT%
+connection = at
+#logformat = textall
+# SMSD configuration, see gammu-smsdrc(5)
+[smsd]
+service = null
+logfile = syslog
+# Increase for debugging information
+debuglevel = 0
+RunOnReceive = /opt/process-sms.sh
+</code>
+  * ''/root/.gammurc''<code>[gammu]
+device = %PORT%
+connection = at
+</code>
+  * ''/opt/updateModemPort.sh'' <code bash updateModemPort.sh>
+#!/bin/bash
+port=$(gammu-detect | grep -B1 TP-LINK | grep ttyUSB | tail -n 1 | awk -F = '{print $2}' | tr -d " ")
+sed -e "s|%PORT%|${port}|" /etc/gammu-smsdrc.template > /etc/gammu-smsdrc
+sed -e "s|%PORT%|${port}|" /root/.gammurc.template > /root/.gammurc
+</code>
   * installation: <code>apt install gammu gammu-smsd</code>
-  *
+  * <code bash process-sms.sh>#!/bin/bash
+for i in `seq $SMS_MESSAGES` ; do
+    numvar="SMS_${i}_NUMBER"
+    textvar="SMS_${i}_TEXT";
+    echo "${!numvar}:${!textvar}" >> /tmp/messages
+    if [ "${!textvar}" == "connect" ]; then
+      echo "connect!" >> /tmp/messages
+    fi
+done
+</code>
 ===== GSM Link =====
-  * See above
+  * Hardware: See above
-  *
+  * Software: wvdial
+  * config: ''/etc/wvdial.conf.template'' <code>[Dialer Defaults]
+Init1 = ATZ
+Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
+Init3 = AT+CGDCONT=1,"IP","internet"
+Modem Type = Analog Modem
+Baud = 960000
+New PPPD = yes
+Modem = %PORT%
+ISDN = 0
+Phone = *99#
+Password = { }
+Username = { }
+</code>
 ===== Relay Card =====
   * Hardware: Conrad electronics, part number 967720 (Relaiskarte 8Fach Seriell)
@@ Line 20: / Line 71: @@
   * via dual prolific basead usb to serial converter, one link goes to the relay card, the other to the serial terminal of the pfsense router.
   * usb link is extended down to the basement via cat7 link, I simply cut a usb extension cord into two and attached RJ45 plugs to both ends with identical pin layout. works like a charm :)
+  * software: ''picocom''