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1cf592503b
External scripts may only be specified with script-security 2 or higher, otherwise OpenVPN fails at tunnel startup with an error. This changes the previously hardcoded hotplug scripts to only be added if script-security is 2 or higher is used. Signed-off-by: Clemens Hopfer <openwrt@wireloss.net>
309 lines
8.1 KiB
Bash
309 lines
8.1 KiB
Bash
#!/bin/sh /etc/rc.common
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# Copyright (C) 2008-2013 OpenWrt.org
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# Copyright (C) 2008 Jo-Philipp Wich
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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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START=90
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STOP=10
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USE_PROCD=1
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PROG=/usr/sbin/openvpn
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PATH_INSTANCE_DIR="/etc/openvpn"
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LIST_SEP="
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"
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UCI_STARTED=
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UCI_DISABLED=
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append_param() {
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local s="$1"
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local v="$2"
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case "$v" in
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*_*_*_*) v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
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*_*_*) v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
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*_*) v=${v%%_*}-${v#*_} ;;
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esac
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echo -n "$v" >> "/var/etc/openvpn-$s.conf"
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return 0
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}
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append_bools() {
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local p; local v; local s="$1"; shift
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for p in $*; do
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config_get_bool v "$s" "$p"
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[ "$v" = 1 ] && append_param "$s" "$p" && echo >> "/var/etc/openvpn-$s.conf"
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done
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}
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append_params() {
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local p; local v; local s="$1"; shift
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for p in $*; do
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config_get v "$s" "$p"
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IFS="$LIST_SEP"
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for v in $v; do
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[ "$v" = "frames_only" ] && [ "$p" = "compress" ] && unset v && append_param "$s" "$p" && echo >> "/var/etc/openvpn-$s.conf"
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[ -n "$v" ] && [ "$p" != "push" ] && append_param "$s" "$p" && echo " $v" >> "/var/etc/openvpn-$s.conf"
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[ -n "$v" ] && [ "$p" = "push" ] && append_param "$s" "$p" && echo " \"$v\"" >> "/var/etc/openvpn-$s.conf"
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done
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unset IFS
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done
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}
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append_list() {
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local p; local v; local s="$1"; shift
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list_cb_append() {
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v="${v}:$1"
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}
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for p in $*; do
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unset v
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config_list_foreach "$s" "$p" list_cb_append
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[ -n "$v" ] && append_param "$s" "$p" && echo " ${v:1}" >> "/var/etc/openvpn-$s.conf"
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done
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}
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section_enabled() {
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config_get_bool enable "$1" 'enable' 0
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config_get_bool enabled "$1" 'enabled' 0
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[ $enable -gt 0 ] || [ $enabled -gt 0 ]
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}
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create_temp_file() {
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mkdir -p "$(dirname "$1")"
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rm -f "$1"
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touch "$1"
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chown root "$1"
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chmod 0600 "$1"
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}
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openvpn_get_dev() {
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local dev dev_type
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local name="$1"
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local conf="$2"
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# Do override only for configurations with config_file
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config_get config_file "$name" config
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[ -n "$config_file" ] || return
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# Check there is someething to override
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config_get dev "$name" dev
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config_get dev_type "$name" dev_type
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[ -n "$dev" ] || return
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# If there is a no dev_type, try to guess it
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if [ -z "$dev_type" ]; then
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. /lib/functions/openvpn.sh
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local odev odev_type
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get_openvpn_option "$conf" odev dev
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get_openvpn_option "$conf" odev_type dev-type
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[ -n "$odev_type" ] || odev_type="$odev"
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case "$odev_type" in
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tun*) dev_type="tun" ;;
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tap*) dev_type="tap" ;;
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*) return;;
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esac
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fi
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# Return overrides
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echo "--dev-type $dev_type --dev $dev"
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}
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openvpn_get_credentials() {
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local name="$1"
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local ret=""
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config_get cert_password "$name" cert_password
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config_get password "$name" password
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config_get username "$name" username
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if [ -n "$cert_password" ]; then
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create_temp_file /var/run/openvpn.$name.pass
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echo "$cert_password" > /var/run/openvpn.$name.pass
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ret=" --askpass /var/run/openvpn.$name.pass "
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fi
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if [ -n "$username" ]; then
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create_temp_file /var/run/openvpn.$name.userpass
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echo "$username" > /var/run/openvpn.$name.userpass
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echo "$password" >> /var/run/openvpn.$name.userpass
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ret=" --auth-user-pass /var/run/openvpn.$name.userpass "
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fi
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# Return overrides
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echo "$ret"
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}
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openvpn_add_instance() {
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local name="$1"
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local dir="$2"
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local conf=$(basename "$3")
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local security="$4"
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local up="$5"
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local down="$6"
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local route_up="$7"
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local route_pre_down="$8"
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local ipchange="$9"
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local client=$(grep -qEx "client|tls-client" "$dir/$conf" && echo 1)
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procd_open_instance "$name"
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procd_set_param command "$PROG" \
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--syslog "openvpn($name)" \
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--status "/var/run/openvpn.$name.status" \
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--cd "$dir" \
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--config "$conf"
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# external scripts can only be called on script-security 2 or higher
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if [ "${security:-2}" -lt 2 ]; then
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logger -t "openvpn(${name})" "not adding hotplug scripts due to script-security ${security:-2}"
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else
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procd_append_param command \
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--up "/usr/libexec/openvpn-hotplug up $name" \
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--down "/usr/libexec/openvpn-hotplug down $name" \
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--route-up "/usr/libexec/openvpn-hotplug route-up $name" \
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--route-pre-down "/usr/libexec/openvpn-hotplug route-pre-down $name" \
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${client:+--ipchange "/usr/libexec/openvpn-hotplug ipchange $name"} \
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${up:+--setenv user_up "$up"} \
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${down:+--setenv user_down "$down"} \
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${route_up:+--setenv user_route_up "$route_up"} \
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${route_pre_down:+--setenv user_route_pre_down "$route_pre_down"} \
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${client:+${ipchange:+--setenv user_ipchange "$ipchange"}}
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fi
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procd_append_param command \
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--script-security "${security:-2}" \
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$(openvpn_get_dev "$name" "$conf") \
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$(openvpn_get_credentials "$name" "$conf")
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procd_set_param file "$dir/$conf"
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procd_set_param term_timeout 15
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procd_set_param respawn
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procd_append_param respawn 3600
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procd_append_param respawn 5
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procd_append_param respawn -1
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procd_close_instance
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}
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start_uci_instance() {
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local s="$1"
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config_get config "$s" config
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config="${config:+$(readlink -f "$config")}"
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section_enabled "$s" || {
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append UCI_DISABLED "$config" "$LIST_SEP"
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return 1
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}
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local up down route_up route_pre_down ipchange script_security
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config_get up "$s" up
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config_get down "$s" down
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config_get route_up "$s" route_up
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config_get route_pre_down "$s" route_pre_down
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config_get ipchange "$s" ipchange
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config_get script_security "$s" script_security
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[ ! -d "/var/run" ] && mkdir -p "/var/run"
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if [ ! -z "$config" ]; then
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append UCI_STARTED "$config" "$LIST_SEP"
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[ -n "$script_security" ] || get_openvpn_option "$config" script_security script-security
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[ -n "$up" ] || get_openvpn_option "$config" up up
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[ -n "$down" ] || get_openvpn_option "$config" down down
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[ -n "$route_up" ] || get_openvpn_option "$config" route_up route-up
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[ -n "$route_pre_down" ] || get_openvpn_option "$config" route_pre_down route-pre-down
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[ -n "$ipchange" ] || get_openvpn_option "$config" ipchange ipchange
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openvpn_add_instance "$s" "${config%/*}" "$config" "$script_security" "$up" "$down" "$route_up" "$route_pre_down" "$ipchange"
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return
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fi
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create_temp_file "/var/etc/openvpn-$s.conf"
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append_bools "$s" $OPENVPN_BOOLS
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append_params "$s" $OPENVPN_PARAMS
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append_list "$s" $OPENVPN_LIST
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openvpn_add_instance "$s" "/var/etc" "openvpn-$s.conf" "$script_security" "$up" "$down" "$route_up" "$route_pre_down" "$ipchange"
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}
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start_path_instances() {
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local path name
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for path in ${PATH_INSTANCE_DIR}/*.conf; do
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[ -f "$path" ] && {
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name="${path##*/}"
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name="${name%.conf}"
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start_path_instance "$name"
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}
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done
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}
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start_path_instance() {
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local name="$1"
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local path name up down route_up route_pre_down ipchange
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path="${PATH_INSTANCE_DIR}/${name}.conf"
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# don't start configs again that are already started by uci
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if echo "$UCI_STARTED" | grep -qxF "$path"; then
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logger -t openvpn "$name.conf already started"
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return
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fi
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# don't start configs which are set to disabled in uci
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if echo "$UCI_DISABLED" | grep -qxF "$path"; then
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logger -t openvpn "$name.conf is disabled in /etc/config/openvpn"
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return
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fi
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get_openvpn_option "$path" up up || up=""
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get_openvpn_option "$path" down down || down=""
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get_openvpn_option "$path" route_up route-up || route_up=""
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get_openvpn_option "$path" route_pre_down route-pre-down || route_pre_down=""
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get_openvpn_option "$path" ipchange ipchange || ipchange=""
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openvpn_add_instance "$name" "${path%/*}" "$path" "" "$up" "$down" "$route_up" "$route_pre_down" "$ipchange"
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}
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start_service() {
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local instance="$1"
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local instance_found=0
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config_cb() {
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local type="$1"
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local name="$2"
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if [ "$type" = "openvpn" ]; then
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if [ -n "$instance" -a "$instance" = "$name" ]; then
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instance_found=1
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fi
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fi
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}
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. /lib/functions/openvpn.sh
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. /usr/share/openvpn/openvpn.options
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config_load 'openvpn'
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if [ -n "$instance" ]; then
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if [ "$instance_found" -gt 0 ]; then
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start_uci_instance "$instance"
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elif [ -f "${PATH_INSTANCE_DIR}/${instance}.conf" ]; then
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start_path_instance "$instance"
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fi
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else
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config_foreach start_uci_instance 'openvpn'
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auto="$(uci_get openvpn globals autostart 1)"
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if [ "$auto" = "1" ]; then
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start_path_instances
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else
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logger -t openvpn "Autostart for configs in '$PATH_INSTANCE_DIR/*.conf' disabled"
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fi
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fi
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}
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service_triggers() {
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procd_add_reload_trigger openvpn
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}
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