sshtunnel: move to github
Signed-off-by: Nuno Goncalves <nunojpg@gmail.com>
This commit is contained in:
Nuno Goncalves
parent
8f52a803a4
commit
73392f3ff3
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#
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# Copyright (C) 2010-2014 OpenWrt.org
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# Copyright (C) 2010 segal.di.ubi.pt
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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PKG_NAME:=sshtunnel
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PKG_VERSION:=3
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PKG_RELEASE:=3
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PKG_LICENSE:=GPL-2.0+
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PKG_MAINTAINER:=Nuno Goncalves <nunojpg@gmail.com>
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include $(INCLUDE_DIR)/package.mk
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define Package/sshtunnel
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SECTION:=net
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CATEGORY:=Network
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SUBMENU:=SSH
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TITLE:=Manages Local and Remote openssh ssh(1) tunnels
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DEPENDS:=+openssh-client
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endef
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define Package/sshtunnel/description
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Creates openssh ssh(1) Local and Remote tunnels configured in UCI file. Can be used to allow remote connections, possibly over NATed connections or without public IP/DNS
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endef
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define Package/sshtunnel/conffiles
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/etc/config/sshtunnel
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endef
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define Build/Compile
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endef
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define Package/sshtunnel/install
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$(INSTALL_DIR) $(1)/etc/init.d
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$(INSTALL_BIN) ./files/sshtunnel.init $(1)/etc/init.d/sshtunnel
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$(INSTALL_DIR) $(1)/usr/bin
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$(INSTALL_BIN) ./files/sshtunnel.sh $(1)/usr/bin/
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$(INSTALL_DIR) $(1)/etc/config
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$(INSTALL_DATA) ./files/uci_sshtunnel $(1)/etc/config/sshtunnel
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endef
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$(eval $(call BuildPackage,sshtunnel))
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@ -0,0 +1,203 @@
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#!/bin/sh /etc/rc.common
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START=99
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STOP=01
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PIDFILE="/tmp/run/sshtunnel"
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append_params() {
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local p; local v; local args;
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for p in $*; do
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eval "v=\$$p"
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[ -n "$v" ] && args="$args -o $p=$v"
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done
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ARGS_options="${args# *}"
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}
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append_string() {
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local varname="$1"; local add="$2"; local separator="${3:- }"; local actual
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eval "actual=\$$varname"
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new="${actual:+$actual$separator}$add"
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eval "$varname=\$new"
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}
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load_tunnelR() {
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config_get section_server $1 server
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[ "$server" = "$section_server" ] || return 0 # continue to read next section if this is not for the current server
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let count++ # count nr of valid sections to make sure there are at least one
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config_get remoteaddress $1 remoteaddress "*"
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config_get remoteport $1 remoteport
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config_get localaddress $1 localaddress
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config_get localport $1 localport
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[ "$remoteport" -gt 0 ] || append_string "error" "[tunnelR: $1]remoteport must be a positive integer" "; "
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[ "$localport" -gt 0 ] || append_string "error" "[tunnelR: $1]localport must be a positive integer" "; "
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[ -n "$error" ] && return 1
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append_string "ARGS_tunnels" "-R $remoteaddress:$remoteport:$localaddress:$localport"
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}
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load_tunnelL() {
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config_get section_server $1 server
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[ "$server" = "$section_server" ] || return 0 # continue to read next section if this is not for the current server
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let count++ # count nr of valid sections to make sure there are at least one
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config_get localaddress $1 localaddress "*"
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config_get localport $1 localport
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config_get remoteaddress $1 remoteaddress
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config_get remoteport $1 remoteport
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[ "$remoteport" -gt 0 ] || append_string "error" "[tunnelL: $1]remoteport must be a positive integer" "; "
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[ "$localport" -gt 0 ] || append_string "error" "[tunnelL: $1]localport must be a positive integer" "; "
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[ -n "$error" ] && return 1
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append_string "ARGS_tunnels" "-L $localaddress:$localport:$remoteaddress:$remoteport"
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}
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load_tunnelD() {
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config_get section_server $1 server
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[ "$server" = "$section_server" ] || return 0 # continue to read next section if this is not for the current server
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let count++ # count nr of valid sections to make sure there are at least one
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config_get localaddress $1 localaddress "*"
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config_get localport $1 localport
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[ "$remoteport" -gt 0 ] || append_string "error" "[tunnelD: $1]remoteport must be a positive integer" "; "
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[ "$localport" -gt 0 ] || append_string "error" "[tunnelD: $1]localport must be a positive integer" "; "
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[ -n "$error" ] && return 1
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append_string "ARGS_tunnels" "-D $localaddress:$localport"
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}
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load_tunnelW() {
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config_get section_server $1 server
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[ "$server" = "$section_server" ] || return 0 # continue to read next section if this is not for the current server
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let count++ # count nr of valid sections to make sure there are at least one
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config_get localdev $1 localdev "*"
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config_get remotedev $1 remotedev "*"
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config_get vpntype $1 vpntype "*"
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[ "$vpntype" == "ethernet" ] || [ "$vpntype" == "point-to-point" ] || append_string "error" "[tunnelW: $1] vpntype must be \"ethernet\" (tap) or \"pointopoint\" (tun)" "; "
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[ "$localdev" == "any" ] || [ "$localdev" -ge 0 ] || append_string "error" "[tunnelW: $1] localdev must be an integer or \"any\"" "; "
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[ "$remotedev" == "any" ] || [ "$remotedev" -ge 0 ] || append_string "error" "[tunnelW: $1] remotedev must be an integer or \"any\"" "; "
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[ "$user" == "root" ] || logger -p user.warn -t "sshtunnel" "warning: root is required unless the tunnel device has been created manually"
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[ -n "$error" ] && return 1
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append_string "ARGS_tunnels" "-w $localdev:$remotedev -o Tunnel=$vpntype"
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}
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load_server() {
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server="$1"
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config_get user $1 user
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config_get hostname $1 hostname
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config_get port $1 port "22"
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config_get retrydelay $1 retrydelay "60"
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config_get PKCS11Provider $1 PKCS11Provider
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config_get CheckHostIP $1 CheckHostIP
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config_get Compression $1 Compression
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config_get CompressionLevel $1 CompressionLevel
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config_get IdentityFile $1 IdentityFile
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config_get LogLevel $1 LogLevel
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config_get ServerAliveCountMax $1 ServerAliveCountMax
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config_get ServerAliveInterval $1 ServerAliveInterval
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config_get StrictHostKeyChecking $1 StrictHostKeyChecking
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config_get TCPKeepAlive $1 TCPKeepAlive
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config_get VerifyHostKeyDNS $1 VerifyHostKeyDNS
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error=""
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[ -n "$user" ] \
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|| append_string "error" "user is not set" "; "
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[ -n "$hostname" ] \
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|| append_string "error" "hostname is not set" "; "
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[ "$retrydelay" -ge 1 ] \
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|| append_string "error" "retrydelay must be a positive integer" "; "
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[ -z "$PKCS11Provider" -o -f "$PKCS11Provider" ] \
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|| append_string "error" "PKCS11Provider must be a pkcs11 shared library accessible" "; "
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[ -z "$CheckHostIP" -o "$CheckHostIP"="yes" -o "$CheckHostIP"="no" ] \
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|| append_string "error" "CheckHostIP must be 'yes' or 'no'" "; "
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[ -z "$Compression" -o "$Compression"="yes" -o "$Compression"="no" ] \
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|| append_string "error" "Compression must be 'yes' or 'no'" "; "
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[ -z "$CompressionLevel" ] || [ "$CompressionLevel" -ge 1 -a "$CompressionLevel" -le 9 ] \
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|| append_string "error" "CompressionLevel must be between 1 and 9" "; "
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[ -z "$IdentityFile" -o -f "$IdentityFile" ] \
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|| append_string "error" "IdentityFile $IdentityFile not accessible" "; "
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[ -z "$LogLevel" -o "$LogLevel" = "QUIET" -o "$LogLevel" = "FATAL" -o "$LogLevel" = "ERROR" -o \
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"$LogLevel" = "INFO" -o "$LogLevel" = "VERBOSE" -o "$LogLevel" = "DEBUG" -o \
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"$LogLevel" = "DEBUG1" -o "$LogLevel" = "DEBUG2" -o "$LogLevel" = "DEBUG3" ] \
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|| append_string "error" "LogLevel is invalid" "; "
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[ -z "$ServerAliveCountMax" ] || [ "$ServerAliveCountMax" -ge 1 ] \
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|| append_string "error" "ServerAliveCountMax must be greater or equal than 1" "; "
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[ -z "$ServerAliveInterval" ] || [ "$ServerAliveInterval" -ge 0 ] \
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|| append_string "error" "ServerAliveInterval must be greater or equal than 0" "; "
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[ -z "$StrictHostKeyChecking" -o "$StrictHostKeyChecking" = "yes" -o "$StrictHostKeyChecking" = "ask" -o "$StrictHostKeyChecking" = "no" ] \
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|| append_string "error" "StrictHostKeyChecking must be 'yes', 'ask' or 'no'" "; "
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[ -z "$TCPKeepAlive" -o "$TCPKeepAlive" = "yes" -o "$TCPKeepAlive" = "no" ] \
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|| append_string "error" "TCPKeepAlive must be 'yes' or 'no'" "; "
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[ -z "$VerifyHostKeyDNS" -o "$VerifyHostKeyDNS" = "yes" -o "$VerifyHostKeyDNS" = "no" ] \
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|| append_string "error" "VerifyHostKeyDNS must be 'yes' or 'no'" "; "
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[ -n "$error" ] && { logger -p user.err -t "sshtunnel" "tunnels to $server not started - $error"; return; }
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ARGS=""
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ARGS_options=""
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ARGS_tunnels=""
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count=0
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config_foreach load_tunnelR tunnelR && config_foreach load_tunnelL tunnelL && config_foreach load_tunnelD tunnelD
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[ -n "$error" ] && { logger -p user.err -t "sshtunnel" "tunnels to $server not started - $error"; return; }
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[ "$count" -eq 0 ] && { logger -p user.err -t "sshtunnel" "tunnels to $server not started - no tunnels defined"; return; }
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append_params CheckHostIP Compression CompressionLevel IdentityFile LogLevel PKCS11Provider ServerAliveCountMax ServerAliveInterval StrictHostKeyChecking TCPKeepAlive VerifyHostKeyDNS
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ARGS="$ARGS_options -o ExitOnForwardFailure=yes -o BatchMode=yes -nN $ARGS_tunnels -p $port $user@$hostname"
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/usr/bin/sshtunnel.sh "$ARGS" "$retrydelay" "$server" &
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echo $! >> "${PIDFILE}.pids"
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logger -p user.info -t "sshtunnel" "started tunnels to $server (pid=$!;retrydelay=$retrydelay)"
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}
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stop() {
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if [ -f "$PIDFILE".pids ]
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then
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logger -p user.info -t "sshtunnel" "stopping all tunnels"
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while read pid
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do
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kill "$pid" # kill mother process first
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[ -f "${PIDFILE}_${pid}.pid" ] && { # if ssh was running, kill it also (mother process could be in retry wait)
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start-stop-daemon -K -p "${PIDFILE}_${pid}.pid"
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rm "${PIDFILE}_${pid}.pid"
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}
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logger -p daemon.info -t "sshtunnel[$pid]" "tunnel stopped"
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done < "${PIDFILE}.pids"
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rm "${PIDFILE}.pids"
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logger -p user.info -t "sshtunnel" "all tunnels stopped"
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else
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logger -p user.info -t "sshtunnel" "no tunnels running"
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fi
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}
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start() {
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[ -f "${PIDFILE}.pids" ] && stop
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config_load sshtunnel
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if [ -n "$(uci show sshtunnel.@server[0])" ] # at least one server section exists
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then
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logger -p user.info -t "sshtunnel" "starting all tunnels"
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config_foreach load_server server
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logger -p user.info -t "sshtunnel" "all tunnels started"
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else
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logger -p user.info -t "sshtunnel" "no servers defined"
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fi
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}
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@ -0,0 +1,21 @@
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#!/bin/sh
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PIDFILE="/tmp/run/sshtunnel"
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args="$1"
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retrydelay="$2"
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server="$3"
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while true
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do
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logger -p daemon.info -t "sshtunnel[$$][$server]" "connection started"
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start-stop-daemon -S -p "${PIDFILE}_${$}.pid" -mx ssh -- $args &>/tmp/log/sshtunnel_$$
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logger -p daemon.err -t "sshtunnel[$$][$server]" < /tmp/log/sshtunnel_$$
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rm /tmp/log/sshtunnel_$$
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logger -p daemon.info -t "sshtunnel[$$][$server]" "ssh exited with code $?, retrying in $retrydelay seconds"
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rm "${PIDFILE}_${$}.pid"
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sleep "$retrydelay" & wait
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done
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@ -0,0 +1,63 @@
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#
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# password authentication is not possible, public key authentication must be used.
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# set "option IdentityFile" to he file from which the identity (private key) for RSA or DSA authentication is read.
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# The default is ~/.ssh/identity for protocol version 1, and ~/.ssh/id_rsa and ~/.ssh/id_dsa for protocol version 2.
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# ssh will also try to load certificate information from the filename obtained by appending -cert.pub to identity filenames.
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#
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#config server disney
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# option user mourinho
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# option hostname server.disney.com
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# option port 22
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# option retrydelay 1
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# option CheckHostIP yes
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# option Compression no
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# option CompressionLevel 6
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# option IdentityFile ~/.ssh/id_rsa
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# option LogLevel INFO
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# option PKCS11Provider /lib/pteidpkcs11.so
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# option ServerAliveCountMax 3
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# option ServerAliveInterval 0
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# option StrictHostKeyChecking ask
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# option TCPKeepAlive yes
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# option VerifyHostKeyDNS yes
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# tunnelR(emote) - when the connection will be initiated to the R(emote) endpoint at
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# remoteaddress:remoteport and then forwarded to localaddress:localport
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#
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#config tunnelR http
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# option server disney
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# option remoteaddress *
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# option remoteport 9009
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# option localaddress 192.168.1.13
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# option localport 80
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# tunnelL(ocal) - when the connection will be initiated to the L(ocal) endpoint at
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# localaddress:localport and then forwarded to remoteaddress:remoteport
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#
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#config tunnelL test
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# option server disney
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# option localaddress *
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# option localport 1022
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# option remoteaddress secretserver.disney.com
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# option remoteport 22
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# tunnelD(ynamic) - when the connection will be initiated with the SOCKS4 or SOCKS5 protocol
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# to the local endpoint at localaddress:localport and then forwarded over the remote host
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#
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#config tunnelD proxy
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# option server disney
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# option localaddress *
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# option localport 4055
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# tunnelW - creates TUN/TAP devices on client and server to establish a VPN tunnel between them
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# vpntypes:
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# point-to-point = TUN
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# ethernet = TAP
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#
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#config tunnelW proxy
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# option server disney
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# option vpntype point-to-point|ethernet
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# option localdev any|0|1|2|...
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# option remotedev any|0|1|2|...
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