guides:virtual_modem:script
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guides:virtual_modem:script [2019-11-19 00:10] omolini |
guides:virtual_modem:script [2020-03-05 06:05] omolini [vmodem.sh] |
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| # VMODEM - Virtual Modem bootstrap | # VMODEM - Virtual Modem bootstrap | ||
| # -------------------------------- | # -------------------------------- | ||
| - | # Oliver Molini 2019 | + | # Oliver Molini 2020 |
| + | # | ||
| + | # Billy Stoughton II for bug fixes and contributions | ||
| # | # | ||
| # Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License | # Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License | ||
| # https://creativecommons.org/licenses/by-nc-sa/4.0/ | # https://creativecommons.org/licenses/by-nc-sa/4.0/ | ||
| - | # | + | |
| - | # Tested working out of box with the following host configurations: | + | # Tested working out of box with the following client configurations: |
| # | # | ||
| # o Standard VT100 terminal | # o Standard VT100 terminal | ||
| Line 33: | Line 35: | ||
| # - Trumpet Winsock | # - Trumpet Winsock | ||
| # | # | ||
| - | # o Microsoft Windows 95 | + | # o Microsoft Windows 95 OSR 2.5 + DUN 1.4 |
| # - Generic | # - Generic | ||
| # - Standard 28800 bps Modem | # - Standard 28800 bps Modem | ||
| Line 47: | Line 49: | ||
| # Script version | # Script version | ||
| - | vmodver=1.4.1 | + | vmodver=1.4.3 |
| # CONFIGURATION | # CONFIGURATION | ||
| Line 53: | Line 55: | ||
| # Variable: serport | # Variable: serport | ||
| # serport specifies which local serial device to use. | # serport specifies which local serial device to use. | ||
| - | # For example, using "ttyAMA0" will tell the script | + | # For example, "ttyUSB0" will tell the script to use |
| - | # to use /dev/ttyAMA0 for communication. | + | # to use /dev/ttyUSB0 for communication. |
| - | # | + | # Common values: ttyUSB0 or ttyAMA0 |
| - | # Default: | + | |
| - | # serport=ttyAMA0 | + | |
| # | # | ||
| - | serport=ttyAMA0 | + | serport=ttyUSB0 |
| # Variable: baud | # Variable: baud | ||
| Line 88: | Line 88: | ||
| # Default is 1. | # Default is 1. | ||
| resultverbose=1 | resultverbose=1 | ||
| + | |||
| + | # Variable: TERM | ||
| + | # Tells the script and environment which type of terminal to emulate. | ||
| + | # It is only useful to change this, if you're using a serial | ||
| + | # terminal to connect to this script. If you're connecting form a ANSI | ||
| + | # cabable machine such as DOS, you may want to use TERM="ansi" | ||
| + | # | ||
| + | TERM="vt100" | ||
| # EXPORT SHELL VARS | # EXPORT SHELL VARS | ||
| Line 93: | Line 101: | ||
| export serport | export serport | ||
| export baud | export baud | ||
| + | export TERM | ||
| # FUNCTIONS | # FUNCTIONS | ||
| Line 217: | Line 226: | ||
| number=`echo $seq |tr -dc '0-9'` | number=`echo $seq |tr -dc '0-9'` | ||
| if [ ! -z "$number" ]; then | if [ ! -z "$number" ]; then | ||
| - | if [[ $resultverbose == 1 ]]; then sendtty "RINGING"; fi | + | if [[ $resultverbose == 1 ]]; then sendtty "RINGING"; sleep 1; fi |
| if [ -f "$number.sh" ]; then | if [ -f "$number.sh" ]; then | ||
| if [[ $resultverbose == 1 ]]; then sendtty "CONNECT $baud"; else sendtty "1"; fi | if [[ $resultverbose == 1 ]]; then sendtty "CONNECT $baud"; else sendtty "1"; fi | ||
| - | # Close serial port | ||
| - | exec 99>&- | ||
| # Execute dialed script | # Execute dialed script | ||
| - | /sbin/getty -8 -L $serport $baud vt100 -n -l "./$number.sh" | + | /sbin/getty -8 -L $serport $baud $TERM -n -l "./$number.sh" |
| # Reset serial settings | # Reset serial settings | ||
| ttyinit | ttyinit | ||
| - | # Reopen serial port | ||
| - | exec 99<>/dev/$serport | ||
| result=3 | result=3 | ||
| else | else | ||
| Line 278: | Line 283: | ||
| if [[ $cmd == LOGIN ]]; then | if [[ $cmd == LOGIN ]]; then | ||
| exec 99>&- | exec 99>&- | ||
| - | /sbin/getty -8 -L ttyAMA0 $baud vt100 | + | /sbin/getty -8 -L $serport $baud vt100 |
| ttyinit | ttyinit | ||
| exec 99<>/dev/$serport | exec 99<>/dev/$serport | ||
| Line 307: | Line 312: | ||
| When Trumpet Winsock is in PPP mode, by default it will expect the following output after dialing the ISP's number and establishing a connection: | When Trumpet Winsock is in PPP mode, by default it will expect the following output after dialing the ISP's number and establishing a connection: | ||
| - | * A username prompt, matched by the text "sername:" | + | * A username prompt, matched by Trumpet with the text "sername:" |
| - | * A password prompt, matched by the text "ssword:" | + | * A password prompt, matched by Trumpet with the text "ssword:" |
| - | * A command prompt, matched by the text ">" | + | * A command prompt, matched by Trumpet with the character ">" |
| This script has been tested with the default installation of Trumpet Winsock 3.0 revision D with PPP mode switched on. This script has also been tested with the default dial-up utility of Windows 95 and Windows 98 with PPP enabled. | This script has been tested with the default installation of Trumpet Winsock 3.0 revision D with PPP mode switched on. This script has also been tested with the default dial-up utility of Windows 95 and Windows 98 with PPP enabled. | ||
| Line 318: | Line 323: | ||
| #!/bin/bash | #!/bin/bash | ||
| # RUN PPPD DAEMON | # RUN PPPD DAEMON | ||
| + | # | ||
| + | # Oliver Molini 2019 | ||
| + | # | ||
| + | # Billy Stoughton II for bug fixes and contributions | ||
| + | # | ||
| + | # Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License | ||
| + | # https://creativecommons.org/licenses/by-nc-sa/4.0/ | ||
| # | # | ||
| # Note on PPPD settings: | # Note on PPPD settings: | ||
| Line 323: | Line 335: | ||
| # - Make sure DNS servers are defined (add ms-dns 1.2.3.4 twice) | # - Make sure DNS servers are defined (add ms-dns 1.2.3.4 twice) | ||
| # | # | ||
| + | |||
| + | # Variable: etherp | ||
| + | # Specify the ethernet device to use to connect to your network. | ||
| + | # | ||
| + | # Default: etherp=eth0 | ||
| + | etherp=eth0 | ||
| + | |||
| # Variable: lcpidle | # Variable: lcpidle | ||
| # Specifies the idle timeout period in seconds for lcp-echo-interval. | # Specifies the idle timeout period in seconds for lcp-echo-interval. | ||
| Line 329: | Line 348: | ||
| # | # | ||
| # Default: lcpidle=5 | # Default: lcpidle=5 | ||
| - | # | ||
| lcpidle=5 | lcpidle=5 | ||
| Line 350: | Line 368: | ||
| # Share eth0 over ppp0 | # Share eth0 over ppp0 | ||
| - | iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE | + | iptables -t nat -A POSTROUTING -o $etherp -j MASQUERADE |
| - | iptables -t filter -A FORWARD -i ppp0 -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT | + | iptables -t filter -A FORWARD -i ppp0 -o $etherp -m state --state RELATED,ESTABLISHED -j ACCEPT |
| - | iptables -t filter -A FORWARD -i eth0 -o ppp0 -j ACCEPT | + | iptables -t filter -A FORWARD -i $etherp -o ppp0 -j ACCEPT |
| # Run PPP daemon and establish a link. | # Run PPP daemon and establish a link. | ||
| Line 383: | Line 401: | ||
| echo "Thank you for visiting! Bye!" | echo "Thank you for visiting! Bye!" | ||
| sleep 2 | sleep 2 | ||
| + | </code> | ||
| + | |||
| + | ===== 3.sh ===== | ||
| + | This example script allows VT100 compatible terminal access to the web by way of running lynx as soon as the number "3" is dialed with "ATD3". It demonstrates how to add a Linux based web browser for simple terminals. | ||
| + | |||
| + | <code bash 3.sh> | ||
| + | #!/bin/bash | ||
| + | # | ||
| + | echo "Terminal type set to $TERM. Running Lynx ..." | ||
| + | lynx | ||
| </code> | </code> | ||
guides/virtual_modem/script.txt · Last modified: 2022-12-28 03:32 by omolini
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