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An utility to create ssh tunnel
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| sshtunnel() { | |
| OPTIND=1 | |
| PROGRAM=$0 | |
| # Common default parameters | |
| PROXY_USER=`whoami` | |
| PROXY_SSH_PORT=22 | |
| MONITOR_PORT=18524 | |
| PROXY_PORT=8080 | |
| case "$1" in | |
| send) | |
| shift | |
| ACTION=send | |
| LOCAL_PORT=18525 | |
| ;; | |
| recv) | |
| shift | |
| ACTION=recv | |
| ;; | |
| *) | |
| echo "Usage: $PROGRAM send | recv [options...]" | |
| return | |
| ;; | |
| esac | |
| while : ; do | |
| case "$1" in | |
| --proxy-host) | |
| PROXY_HOST="$2" | |
| shift 2 | |
| ;; | |
| --proxy-port) | |
| PROXY_PORT="$2" | |
| shift 2 | |
| ;; | |
| --proxy-user) | |
| PROXY_USER="$2" | |
| shift 2 | |
| ;; | |
| --proxy-port) | |
| PROXY_SSH_PORT="$2" | |
| shift 2 | |
| ;; | |
| --local-port) | |
| LOCAL_PORT="$2" | |
| shift 2 | |
| ;; | |
| --monitor-port) | |
| MONITOR_PORT="$2" | |
| shift 2 | |
| ;; | |
| -i) | |
| IDENTIFY_FILE="-i $2" | |
| shift 2 | |
| ;; | |
| "") | |
| break | |
| ;; | |
| *) | |
| if [ "$ACTION" = "recv" ]; then | |
| echo "Usage: $PROGRAM recv [options...]" | |
| echo " --proxy-host Hostname of the proxy ssh server. Required." | |
| echo " --proxy-port Port of the proxy ssh server to be listened. Default: 8080." | |
| echo " --proxy-user User on the proxy ssh server to login." | |
| echo " --proxy-ssh-port Port of the proxy ssh server, default: 22." | |
| echo " --local-port Port of the local server to forward to. Required." | |
| echo " --monitor-port Port of the local server to monitor the connection, only need for autossh, default: 18524." | |
| echo " -i Selects a file from which the identity (private key) for public key authentication is read." | |
| return | |
| elif [ "$ACTION" = "send" ]; then | |
| echo "Usage: $PROGRAM send [options...]" | |
| echo " --proxy-host Hostname of the proxy ssh server. Required." | |
| echo " --proxy-port Port of the proxy ssh server to forward to. Default: 8080." | |
| echo " --proxy-user User on the proxy ssh server to login." | |
| echo " --proxy-ssh-port Port of the proxy ssh server, default: 22." | |
| echo " --local-port Port of the local server to be listened. Default: 18525." | |
| echo " --monitor-port Port of the local server to monitor the connection, only need for autossh, default: 18524." | |
| echo " -i Selects a file from which the identity (private key) for public key authentication is read." | |
| return | |
| fi | |
| esac | |
| done | |
| if [ -z "$PROXY_USER" ] || [ -z "$PROXY_HOST" ] || [ -z "$PROXY_PORT" ] || [ -z "$LOCAL_PORT" ] || [ -z "$PROXY_SSH_PORT" ] || [ -z "$MONITOR_PORT" ]; then | |
| $PROGRAM $ACTION --help | |
| return | |
| fi; | |
| AUTOSSH_OPTS="-f -M $MONITOR_PORT $IDENTIFY_FILE -p $PROXY_SSH_PORT -o 'ServerAliveInterval 15' -o 'ServerAliveCountMax 3'" | |
| SSH_OPTS="$IDENTIFY_FILE -p $PROXY_SSH_PORT" | |
| if [ "$ACTION" = "recv" ]; then | |
| if [ -x "`which autossh`" ]; then | |
| COMMAND="autossh $AUTOSSH_OPTS -CNR $PROXY_PORT:127.0.0.1:$LOCAL_PORT" | |
| elif [ -x "`which ssh`" ]; then | |
| COMMAND="ssh $SSH_OPTS -CNfR $PROXY_PORT:127.0.0.1:$LOCAL_PORT" | |
| fi | |
| elif [ "$ACTION" = "send" ]; then | |
| if [ -x "`which autossh`" ]; then | |
| COMMAND="autossh $AUTOSSH_OPTS -CNL $LOCAL_PORT:127.0.0.1:$PROXY_PORT" | |
| elif [ -x "`which ssh`" ]; then | |
| COMMAND="ssh $SSH_OPTS -CNfL $LOCAL_PORT:127.0.0.1:$PROXY_PORT" | |
| fi | |
| fi | |
| eval "$COMMAND $PROXY_USER@$PROXY_HOST" | |
| RET=$? | |
| if [ "$RET" = "0" ]; then | |
| if [ "$ACTION" = "recv" ]; then | |
| echo "sshtunnel to localhost:$LOCAL_PORT opened, now run command \`$PROGRAM send --proxy-host $PROXY_HOST --proxy-port $PROXY_PORT --proxy-user $PROXY_USER --proxy-ssh-port $PROXY_SSH_PORT $IDENTIFY_FILE\` to connect to it." | |
| elif [ "$ACTION" = "send" ]; then | |
| echo "sshtunnel to $PROXY_HOST:$PROXY_PORT opened, any data send to localhost:$LOCAL_PORT will be forward to it." | |
| fi | |
| fi | |
| return $RET | |
| } |
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| #/bin/bash | |
| PROGRAM=$0 | |
| # Common default parameters | |
| PROXY_USER=`whoami` | |
| PROXY_SSH_PORT=22 | |
| MONITOR_PORT=18524 | |
| PROXY_PORT=8080 | |
| case "$1" in | |
| send) | |
| shift | |
| ACTION=send | |
| LOCAL_PORT=18525 | |
| ;; | |
| recv) | |
| shift | |
| ACTION=recv | |
| ;; | |
| *) | |
| echo "Usage: $PROGRAM send | recv [options...]" | |
| exit | |
| ;; | |
| esac | |
| while : ; do | |
| case "$1" in | |
| --proxy-host) | |
| PROXY_HOST="$2" | |
| shift 2 | |
| ;; | |
| --proxy-port) | |
| PROXY_PORT="$2" | |
| shift 2 | |
| ;; | |
| --proxy-user) | |
| PROXY_USER="$2" | |
| shift 2 | |
| ;; | |
| --proxy-port) | |
| PROXY_SSH_PORT="$2" | |
| shift 2 | |
| ;; | |
| --local-port) | |
| LOCAL_PORT="$2" | |
| shift 2 | |
| ;; | |
| --monitor-port) | |
| MONITOR_PORT="$2" | |
| shift 2 | |
| ;; | |
| -i) | |
| IDENTIFY_FILE="-i $2" | |
| shift 2 | |
| ;; | |
| "") | |
| break | |
| ;; | |
| *) | |
| if [ "$ACTION" = "recv" ]; then | |
| echo "Usage: $PROGRAM recv [options...]" | |
| echo " --proxy-host Hostname of the proxy ssh server. Required." | |
| echo " --proxy-port Port of the proxy ssh server to be listened. Default: 8080." | |
| echo " --proxy-user User on the proxy ssh server to login." | |
| echo " --proxy-ssh-port Port of the proxy ssh server, default: 22." | |
| echo " --local-port Port of the local server to forward to. Required." | |
| echo " --monitor-port Port of the local server to monitor the connection, only need for autossh, default: 18524." | |
| echo " -i Selects a file from which the identity (private key) for public key authentication is read." | |
| exit | |
| elif [ "$ACTION" = "send" ]; then | |
| echo "Usage: $PROGRAM send [options...]" | |
| echo " --proxy-host Hostname of the proxy ssh server. Required." | |
| echo " --proxy-port Port of the proxy ssh server to forward to. Default: 8080." | |
| echo " --proxy-user User on the proxy ssh server to login." | |
| echo " --proxy-ssh-port Port of the proxy ssh server, default: 22." | |
| echo " --local-port Port of the local server to be listened. Default: 18525." | |
| echo " --monitor-port Port of the local server to monitor the connection, only need for autossh, default: 18524." | |
| echo " -i Selects a file from which the identity (private key) for public key authentication is read." | |
| exit | |
| fi | |
| esac | |
| done | |
| if [ -z "$PROXY_USER" ] || [ -z "$PROXY_HOST" ] || [ -z "$PROXY_PORT" ] || [ -z "$LOCAL_PORT" ] || [ -z "$PROXY_SSH_PORT" ] || [ -z "$MONITOR_PORT" ]; then | |
| $PROGRAM $ACTION --help | |
| exit -1 | |
| fi; | |
| AUTOSSH_OPTS="-f -M $MONITOR_PORT $IDENTIFY_FILE -p $PROXY_SSH_PORT -o 'ServerAliveInterval 15' -o 'ServerAliveCountMax 3'" | |
| SSH_OPTS="$IDENTIFY_FILE -p $PROXY_SSH_PORT" | |
| if [ "$ACTION" = "recv" ]; then | |
| if [ -x "`which autossh`" ]; then | |
| COMMAND="autossh $AUTOSSH_OPTS -CNR $PROXY_PORT:127.0.0.1:$LOCAL_PORT" | |
| elif [ -x "`which ssh`" ]; then | |
| COMMAND="ssh $SSH_OPTS -CNfR $PROXY_PORT:127.0.0.1:$LOCAL_PORT" | |
| fi | |
| elif [ "$ACTION" = "send" ]; then | |
| if [ -x "`which autossh`" ]; then | |
| COMMAND="autossh $AUTOSSH_OPTS -CNL $LOCAL_PORT:127.0.0.1:$PROXY_PORT" | |
| elif [ -x "`which ssh`" ]; then | |
| COMMAND="ssh $SSH_OPTS -CNfL $LOCAL_PORT:127.0.0.1:$PROXY_PORT" | |
| fi | |
| fi | |
| eval "$COMMAND $PROXY_USER@$PROXY_HOST" | |
| RET=$? | |
| if [ "$RET" = "0" ]; then | |
| if [ "$ACTION" = "recv" ]; then | |
| echo "sshtunnel to localhost:$LOCAL_PORT opened, now run command \`$PROGRAM send --proxy-host $PROXY_HOST --proxy-port $PROXY_PORT --proxy-user $PROXY_USER --proxy-ssh-port $PROXY_SSH_PORT $IDENTIFY_FILE\` to connect to it." | |
| elif [ "$ACTION" = "send" ]; then | |
| echo "sshtunnel to $PROXY_HOST:$PROXY_PORT opened, any data send to localhost:$LOCAL_PORT will be forward to it." | |
| fi | |
| fi | |
| exit $RET |
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