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2025-06-24 16:03:39 +02:00
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407
package/network/services/openvpn/files/openvpn.config Normal file
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package openvpn
#################################################
# Sample to include a custom config file. #
#################################################
config openvpn custom_config
# Set to 1 to enable this instance:
option enabled 0
# Include OpenVPN configuration
option config /etc/openvpn/my-vpn.conf
#################################################
# Sample OpenVPN 2.0 uci config for #
# multi-client server. #
#################################################
config openvpn sample_server
# Set to 1 to enable this instance:
option enabled 0
# Which local IP address should OpenVPN
# listen on? (optional)
# option local 0.0.0.0
# Which TCP/UDP port should OpenVPN listen on?
# If you want to run multiple OpenVPN instances
# on the same machine, use a different port
# number for each one. You will need to
# open up this port on your firewall.
option port 1194
# TCP or UDP server?
# option proto tcp
option proto udp
# "dev tun" will create a routed IP tunnel,
# "dev tap" will create an ethernet tunnel.
# Use "dev tap0" if you are ethernet bridging
# and have precreated a tap0 virtual interface
# and bridged it with your ethernet interface.
# If you want to control access policies
# over the VPN, you must create firewall
# rules for the the TUN/TAP interface.
# On non-Windows systems, you can give
# an explicit unit number, such as tun0.
# On Windows, use "dev-node" for this.
# On most systems, the VPN will not function
# unless you partially or fully disable
# the firewall for the TUN/TAP interface.
# option dev tap
option dev tun
# SSL/TLS root certificate (ca), certificate
# (cert), and private key (key). Each client
# and the server must have their own cert and
# key file. The server and all clients will
# use the same ca file.
#
# See the "easy-rsa" directory for a series
# of scripts for generating RSA certificates
# and private keys. Remember to use
# a unique Common Name for the server
# and each of the client certificates.
#
# Any X509 key management system can be used.
# OpenVPN can also use a PKCS #12 formatted key file
# (see "pkcs12" directive in man page).
option ca /etc/openvpn/ca.crt
option cert /etc/openvpn/server.crt
# This file should be kept secret:
option key /etc/openvpn/server.key
# Diffie hellman parameters.
# Generate your own with:
# openssl dhparam -out dh1024.pem 1024
# Substitute 2048 for 1024 if you are using
# 2048 bit keys.
option dh /etc/openvpn/dh1024.pem
# Configure server mode and supply a VPN subnet
# for OpenVPN to draw client addresses from.
# The server will take 10.8.0.1 for itself,
# the rest will be made available to clients.
# Each client will be able to reach the server
# on 10.8.0.1. Comment this line out if you are
# ethernet bridging. See the man page for more info.
option server "10.8.0.0 255.255.255.0"
# Maintain a record of client <-> virtual IP address
# associations in this file. If OpenVPN goes down or
# is restarted, reconnecting clients can be assigned
# the same virtual IP address from the pool that was
# previously assigned.
option ifconfig_pool_persist /tmp/ipp.txt
# Configure server mode for ethernet bridging.
# You must first use your OS's bridging capability
# to bridge the TAP interface with the ethernet
# NIC interface. Then you must manually set the
# IP/netmask on the bridge interface, here we
# assume 10.8.0.4/255.255.255.0. Finally we
# must set aside an IP range in this subnet
# (start=10.8.0.50 end=10.8.0.100) to allocate
# to connecting clients. Leave this line commented
# out unless you are ethernet bridging.
# option server_bridge "10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100"
# Push routes to the client to allow it
# to reach other private subnets behind
# the server. Remember that these
# private subnets will also need
# to know to route the OpenVPN client
# address pool (10.8.0.0/255.255.255.0)
# back to the OpenVPN server.
# list push "route 192.168.10.0 255.255.255.0"
# list push "route 192.168.20.0 255.255.255.0"
# To assign specific IP addresses to specific
# clients or if a connecting client has a private
# subnet behind it that should also have VPN access,
# use the subdirectory "ccd" for client-specific
# configuration files (see man page for more info).
# EXAMPLE: Suppose the client
# having the certificate common name "Thelonious"
# also has a small subnet behind his connecting
# machine, such as 192.168.40.128/255.255.255.248.
# First, uncomment out these lines:
# option client_config_dir /etc/openvpn/ccd
# list route "192.168.40.128 255.255.255.248"
# Then create a file ccd/Thelonious with this line:
# iroute 192.168.40.128 255.255.255.248
# This will allow Thelonious' private subnet to
# access the VPN. This example will only work
# if you are routing, not bridging, i.e. you are
# using "dev tun" and "server" directives.
# EXAMPLE: Suppose you want to give
# Thelonious a fixed VPN IP address of 10.9.0.1.
# First uncomment out these lines:
# option client_config_dir /etc/openvpn/ccd
# list route "10.9.0.0 255.255.255.252"
# list route "192.168.100.0 255.255.255.0"
# Then add this line to ccd/Thelonious:
# ifconfig-push "10.9.0.1 10.9.0.2"
# Suppose that you want to enable different
# firewall access policies for different groups
# of clients. There are two methods:
# (1) Run multiple OpenVPN daemons, one for each
# group, and firewall the TUN/TAP interface
# for each group/daemon appropriately.
# (2) (Advanced) Create a script to dynamically
# modify the firewall in response to access
# from different clients. See man
# page for more info on learn-address script.
# option learn_address /etc/openvpn/script
# If enabled, this directive will configure
# all clients to redirect their default
# network gateway through the VPN, causing
# all IP traffic such as web browsing and
# and DNS lookups to go through the VPN
# (The OpenVPN server machine may need to NAT
# the TUN/TAP interface to the internet in
# order for this to work properly).
# CAVEAT: May break client's network config if
# client's local DHCP server packets get routed
# through the tunnel. Solution: make sure
# client's local DHCP server is reachable via
# a more specific route than the default route
# of 0.0.0.0/0.0.0.0.
# list push "redirect-gateway"
# Certain Windows-specific network settings
# can be pushed to clients, such as DNS
# or WINS server addresses. CAVEAT:
# http://openvpn.net/faq.html#dhcpcaveats
# list push "dhcp-option DNS 10.8.0.1"
# list push "dhcp-option WINS 10.8.0.1"
# Uncomment this directive to allow different
# clients to be able to "see" each other.
# By default, clients will only see the server.
# To force clients to only see the server, you
# will also need to appropriately firewall the
# server's TUN/TAP interface.
# option client_to_client 1
# Uncomment this directive if multiple clients
# might connect with the same certificate/key
# files or common names. This is recommended
# only for testing purposes. For production use,
# each client should have its own certificate/key
# pair.
#
# IF YOU HAVE NOT GENERATED INDIVIDUAL
# CERTIFICATE/KEY PAIRS FOR EACH CLIENT,
# EACH HAVING ITS OWN UNIQUE "COMMON NAME",
# UNCOMMENT THIS LINE OUT.
# option duplicate_cn 1
# The keepalive directive causes ping-like
# messages to be sent back and forth over
# the link so that each side knows when
# the other side has gone down.
# Ping every 10 seconds, assume that remote
# peer is down if no ping received during
# a 120 second time period.
option keepalive "10 120"
# For extra security beyond that provided
# by SSL/TLS, create an "HMAC firewall"
# to help block DoS attacks and UDP port flooding.
#
# Generate with:
# openvpn --genkey --secret ta.key
#
# The server and each client must have
# a copy of this key.
# The second parameter should be '0'
# on the server and '1' on the clients.
# This file is secret:
# option tls_auth "/etc/openvpn/ta.key 0"
# Select a cryptographic cipher.
# This config item must be copied to
# the client config file as well.
# Blowfish (default):
# option cipher BF-CBC
# AES:
# option cipher AES-128-CBC
# Triple-DES:
# option cipher DES-EDE3-CBC
# Enable compression on the VPN link.
# If you enable it here, you must also
# enable it in the client config file.
# LZ4 requires OpenVPN 2.4+ client and server
# option compress lz4
# LZO is compatible with most OpenVPN versions
# (set "compress lzo" on 2.4+ clients, and "comp-lzo yes" on older clients)
option compress lzo
# The maximum number of concurrently connected
# clients we want to allow.
# option max_clients 100
# The persist options will try to avoid
# accessing certain resources on restart
# that may no longer be accessible because
# of the privilege downgrade.
option persist_key 1
option persist_tun 1
option user nobody
# Output a short status file showing
# current connections, truncated
# and rewritten every minute.
option status /tmp/openvpn-status.log
# By default, log messages will go to the syslog (or
# on Windows, if running as a service, they will go to
# the "\Program Files\OpenVPN\log" directory).
# Use log or log-append to override this default.
# "log" will truncate the log file on OpenVPN startup,
# while "log-append" will append to it. Use one
# or the other (but not both).
# option log /tmp/openvpn.log
# option log_append /tmp/openvpn.log
# Set the appropriate level of log
# file verbosity.
#
# 0 is silent, except for fatal errors
# 4 is reasonable for general usage
# 5 and 6 can help to debug connection problems
# 9 is extremely verbose
option verb 3
# Silence repeating messages. At most 20
# sequential messages of the same message
# category will be output to the log.
# option mute 20
##############################################
# Sample client-side OpenVPN 2.0 uci config #
# for connecting to multi-client server. #
##############################################
config openvpn sample_client
# Set to 1 to enable this instance:
option enabled 0
# Specify that we are a client and that we
# will be pulling certain config file directives
# from the server.
option client 1
# Use the same setting as you are using on
# the server.
# On most systems, the VPN will not function
# unless you partially or fully disable
# the firewall for the TUN/TAP interface.
# option dev tap
option dev tun
# Are we connecting to a TCP or
# UDP server? Use the same setting as
# on the server.
# option proto tcp
option proto udp
# The hostname/IP and port of the server.
# You can have multiple remote entries
# to load balance between the servers.
list remote "my_server_1 1194"
# list remote "my_server_2 1194"
# Choose a random host from the remote
# list for load_balancing. Otherwise
# try hosts in the order specified.
# option remote_random 1
# Keep trying indefinitely to resolve the
# host name of the OpenVPN server. Very useful
# on machines which are not permanently connected
# to the internet such as laptops.
option resolv_retry infinite
# Most clients don't need to bind to
# a specific local port number.
option nobind 1
# Try to preserve some state across restarts.
option persist_key 1
option persist_tun 1
option user nobody
# If you are connecting through an
# HTTP proxy to reach the actual OpenVPN
# server, put the proxy server/IP and
# port number here. See the man page
# if your proxy server requires
# authentication.
# retry on connection failures:
# option http_proxy_retry 1
# specify http proxy address and port:
# option http_proxy "192.168.1.100 8080"
# Wireless networks often produce a lot
# of duplicate packets. Set this flag
# to silence duplicate packet warnings.
# option mute_replay_warnings 1
# SSL/TLS parms.
# See the server config file for more
# description. It's best to use
# a separate .crt/.key file pair
# for each client. A single ca
# file can be used for all clients.
option ca /etc/openvpn/ca.crt
option cert /etc/openvpn/client.crt
option key /etc/openvpn/client.key
# Verify server certificate by checking
# that the certicate has the nsCertType
# field set to "server". This is an
# important precaution to protect against
# a potential attack discussed here:
# http://openvpn.net/howto.html#mitm
#
# To use this feature, you will need to generate
# your server certificates with the nsCertType
# field set to "server". The build_key_server
# script in the easy_rsa folder will do this.
# option ns_cert_type server
# If a tls_auth key is used on the server
# then every client must also have the key.
# option tls_auth "/etc/openvpn/ta.key 1"
# Select a cryptographic cipher.
# If the cipher option is used on the server
# then you must also specify it here.
# option cipher x
# Enable compression on the VPN link.
# Don't enable this unless it is also
# enabled in the server config file.
# LZ4 requires OpenVPN 2.4+ on server and client
# option compress lz4
# LZO is compatible with most OpenVPN versions
option compress lzo
# Set log file verbosity.
option verb 3
# Silence repeating messages
# option mute 20

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package/network/services/openvpn/files/openvpn.init Normal file
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#!/bin/sh /etc/rc.common
# Copyright (C) 2008-2013 OpenWrt.org
# Copyright (C) 2008 Jo-Philipp Wich
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
START=90
STOP=10
USE_PROCD=1
PROG=/usr/sbin/openvpn
LIST_SEP="
"
UCI_STARTED=
UCI_DISABLED=
append_param() {
local s="$1"
local v="$2"
case "$v" in
*_*_*_*) v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
*_*_*) v=${v%%_*}-${v#*_}; v=${v%%_*}-${v#*_} ;;
*_*) v=${v%%_*}-${v#*_} ;;
esac
echo -n "$v" >> "/var/etc/openvpn-$s.conf"
return 0
}
append_bools() {
local p; local v; local s="$1"; shift
for p in $*; do
config_get_bool v "$s" "$p"
[ "$v" = 1 ] && append_param "$s" "$p" && echo >> "/var/etc/openvpn-$s.conf"
done
}
append_params() {
local p; local v; local s="$1"; shift
for p in $*; do
config_get v "$s" "$p"
IFS="$LIST_SEP"
for v in $v; do
[ -n "$v" ] && [ "$p" != "push" ] && append_param "$s" "$p" && echo " $v" >> "/var/etc/openvpn-$s.conf"
[ -n "$v" ] && [ "$p" == "push" ] && append_param "$s" "$p" && echo " \"$v\"" >> "/var/etc/openvpn-$s.conf"
done
unset IFS
done
}
append_list() {
local p; local v; local s="$1"; shift
list_cb_append() {
v="${v}:$1"
}
for p in $*; do
unset v
config_list_foreach "$s" "$p" list_cb_append
[ -n "$v" ] && append_param "$s" "$p" && echo " ${v:1}" >> "/var/etc/openvpn-$s.conf"
done
}
section_enabled() {
config_get_bool enable "$1" 'enable' 0
config_get_bool enabled "$1" 'enabled' 0
[ $enable -gt 0 ] || [ $enabled -gt 0 ]
}
openvpn_add_instance() {
local name="$1"
local dir="$2"
local conf="$3"
procd_open_instance "$name"
procd_set_param command "$PROG" \
--syslog "openvpn($name)" \
--status "/var/run/openvpn.$name.status" \
--cd "$dir" \
--config "$conf"
procd_set_param file "$dir/$conf"
procd_set_param term_timeout 15
procd_set_param respawn
procd_append_param respawn 3600
procd_append_param respawn 5
procd_append_param respawn -1
procd_close_instance
}
start_instance() {
local s="$1"
config_get config "$s" config
config="${config:+$(readlink -f "$config")}"
section_enabled "$s" || {
append UCI_DISABLED "$config" "$LIST_SEP"
return 1
}
[ ! -d "/var/run" ] && mkdir -p "/var/run"
if [ ! -z "$config" ]; then
append UCI_STARTED "$config" "$LIST_SEP"
openvpn_add_instance "$s" "${config%/*}" "$config"
return
fi
[ ! -d "/var/etc" ] && mkdir -p "/var/etc"
[ -f "/var/etc/openvpn-$s.conf" ] && rm "/var/etc/openvpn-$s.conf"
append_bools "$s" $OPENVPN_BOOLS
append_params "$s" $OPENVPN_PARAMS
append_list "$s" $OPENVPN_LIST
openvpn_add_instance "$s" "/var/etc" "openvpn-$s.conf"
}
start_service() {
local instance="$1"
local instance_found=0
config_cb() {
local type="$1"
local name="$2"
if [ "$type" = "openvpn" ]; then
if [ -n "$instance" -a "$instance" = "$name" ]; then
instance_found=1
fi
fi
}
. /usr/share/openvpn/openvpn.options
config_load 'openvpn'
if [ -n "$instance" ]; then
[ "$instance_found" -gt 0 ] || return
start_instance "$instance"
else
config_foreach start_instance 'openvpn'
local path name
for path in /etc/openvpn/*.conf; do
if [ -f "$path" ]; then
name="${path##*/}"; name="${name%.conf}"
# don't start configs again that are already started by uci
if echo "$UCI_STARTED" | grep -qxF "$path"; then
continue
# don't start configs which are set to disabled in uci
elif echo "$UCI_DISABLED" | grep -qxF "$path"; then
logger -t openvpn "$name.conf is disabled in /etc/config/openvpn"
continue
fi
openvpn_add_instance "$name" "${path%/*}" "$path"
fi
done
fi
}
service_triggers() {
procd_add_reload_trigger openvpn
}

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package/network/services/openvpn/files/openvpn.options Normal file
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OPENVPN_PARAMS='
askpass
auth
auth_retry
auth_user_pass
auth_user_pass_verify
bcast_buffers
ca
capath
cd
cert
chroot
cipher
client_config_dir
client_connect
client_disconnect
comp_lzo
compress
connect_freq
connect_retry
connect_retry_max
connect_timeout
crl_verify
dev
dev_node
dev_type
dh
down
ecdh_curve
echo
engine
explicit_exit_notify
extra_certs
fragment
group
hand_window
hash_size
http_proxy
http_proxy_option
http_proxy_timeout
ifconfig
ifconfig_ipv6
ifconfig_ipv6_pool
ifconfig_ipv6_push
ifconfig_pool
ifconfig_pool_persist
ifconfig_push
inactive
ipchange
iroute
iroute_ipv6
keepalive
key
key_direction
key_method
keysize
learn_address
link_mtu
lladdr
local
log
log_append
lport
management
management_log_cache
max_clients
max_routes_per_client
mode
mssfix
mtu_disc
mute
nice
ns_cert_type
ping
ping_exit
ping_restart
pkcs12
plugin
port
port_share
prng
proto
pull_filter
push
rcvbuf
redirect_gateway
remap_usr1
remote
remote_cert_eku
remote_cert_ku
remote_cert_tls
reneg_bytes
reneg_pkts
reneg_sec
replay_persist
replay_window
resolv_retry
route
route_delay
route_gateway
route_ipv6
route_metric
route_pre_down
route_up
rport
script_security
secret
server
server_bridge
server_ipv6
setenv
shaper
sndbuf
socks_proxy
status
status_version
syslog
tcp_queue_limit
tls_auth
tls_crypt
tls_timeout
tls_verify
tls_version_min
tmp_dir
topology
tran_window
tun_mtu
tun_mtu_extra
txqueuelen
up
user
verb
verify_client_cert
verify_x509_name
x509_username_field
'
OPENVPN_BOOLS='
allow_recursive_routing
auth_nocache
auth_user_pass_optional
bind
ccd_exclusive
client
client_to_client
comp_noadapt
disable
disable_occ
down_pre
duplicate_cn
fast_io
float
http_proxy_retry
ifconfig_noexec
ifconfig_nowarn
management_forget_disconnect
management_hold
management_query_passwords
management_signal
mktun
mlock
mtu_test
multihome
mute_replay_warnings
ncp_disable
nobind
opt_verify
passtos
persist_key
persist_local_ip
persist_remote_ip
persist_tun
ping_timer_rem
pull
push_reset
remote_random
rmtun
route_noexec
route_nopull
single_session
socks_proxy_retry
suppress_timestamps
tcp_nodelay
test_crypto
tls_client
tls_exit
tls_server
up_delay
up_restart
username_as_common_name
'
OPENVPN_LIST='
ncp_ciphers
tls_cipher
tls_ciphersuites
'

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package/network/services/openvpn/files/openvpn.upgrade Normal file
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/etc/openvpn/