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authorMatthias Schiffer <mschiffer@universe-factory.net>2014-09-08 22:40:27 +0200
committerMatthias Schiffer <mschiffer@universe-factory.net>2014-09-08 22:40:27 +0200
commit2eb0efacac35c2f8829d64f9293030f239bf79f1 (patch)
tree0658f781c114faa70200a0024cbcec49d41b5f90 /doc/examples/openwrt
parent80b1412c65a7a7e209c66684cf78e2ab13cfd5e6 (diff)
downloadfastd-2eb0efacac35c2f8829d64f9293030f239bf79f1.tar
fastd-2eb0efacac35c2f8829d64f9293030f239bf79f1.zip
Move systemd unit to a new doc/examples dir, add OpenWrt example config and init script
Diffstat (limited to 'doc/examples/openwrt')
-rw-r--r--doc/examples/openwrt/fastd.config143
-rw-r--r--doc/examples/openwrt/fastd.init425
2 files changed, 568 insertions, 0 deletions
diff --git a/doc/examples/openwrt/fastd.config b/doc/examples/openwrt/fastd.config
new file mode 100644
index 0000000..b47cc65
--- /dev/null
+++ b/doc/examples/openwrt/fastd.config
@@ -0,0 +1,143 @@
+package fastd
+
+config fastd sample_config
+
+ # Set to 1 to enable this instance:
+ option enabled 0
+
+ # Sets a static config file, optional
+ # Options set via UCI have higher priority that statically configured ones
+# list config '/etc/fastd/sample_config/fastd.conf'
+
+ # Configures a single static peer from a configuration file
+# list config_peer '/etc/fastd/sample_config/sample_peer.conf'
+
+ # Sets an additional directory from which peers configurations are read
+ # The peer list can be reloaded without restarting fastd
+ # Peer can either be configured via UCI (see examples below) or via peer dirs
+ # Can't be used in tun mode
+# list config_peer_dir '/etc/fastd/sample_config/peers'
+
+ # Sets the log level
+ # Possible values: error, warn, info, verbose, debug
+ # Default: info
+ option syslog_level 'info'
+
+ # IP address and port of the local end, optional
+ # 'any' can be used to bind to both IPv4 and IPv6
+ # If no port is given fastd will bind to a random port
+# list bind 'any:1337'
+# list bind '0.0.0.0:1337'
+# list bind '[::]:1337'
+
+ # "method null" uses no encryption or MAC
+ # "method xsalsa20-poly1305" uses the XSalsa20 encryption ad the Poly1305 MAC
+ list method 'xsalsa20-poly1305'
+
+ # "mode tap" will create an ethernet tunnel (tap device),
+ # "mode tun" will create an IP tunnel (tun device).
+ option mode 'tap'
+
+ # Set the name of the tunnel interface to use
+ option interface 'tap0'
+# option interface 'tun0'
+# option interface 'fastd0'
+
+ # Sets the MTU of the tunnel interface, default is 1500
+ # 1426 is a good value that avoids fragmentation for the xsalsa20-poly1305 method
+ # when the tunnel uses an IPv4 connection on a line with an MTU of 1492 or higher
+ option mtu 1426
+
+ # Enables direct forwaring of packets between peers
+ # WARNING: Only enable this if you know what you are doing, as this can lead to forwarding loops!
+ option forward 0
+
+ # Disable for compatiblity with fastd v10 and older
+ option secure_handshakes 1
+
+ # Set a packet mark to filter for with iptables or ip rules
+# option packet_mark 42
+
+ # Limits the maximum number of connections, optional
+# option peer_limit 5
+
+ # The secret key
+ # A keypair can be generated with `fastd --generate-key`
+ # When the corresponding public key is lost it can be recovered with `/etc/init.d/fastd show-key <config name>`
+# option secret '0000000000000000000000000000000000000000000000000000000000000000'
+
+ # Sets the user to run fastd as. Defaults to root
+# option user 'daemon'
+
+ # Sets the group to run fastd as. Defaults to the user's primary group
+# option group 'daemon'
+
+ # If set to 1, the logs won't contain peers' IP addresses
+# option hide_ip_addresses '0'
+
+ # If set to 1, the logs won't contain peers' MAC addresses
+# option hide_mac_addresses '0'
+
+ # Read the documentation about this one. Only ever useful in severly broken networks.
+# option pmtu ''
+
+ # command to configure IP addresses etc. after the tunnel interface is up; $1 will be the interface name (optional)
+# option up ''
+
+ # command to execute before the tunnel interface is set down; $1 will be the interface name (optional)
+# option down ''
+
+
+config peer sample_peer
+
+ # Set to 1 to enable this peer
+ # In tap mode peers can be reloaded dynamically
+ option enabled 0
+
+ # Controls which instance this peer is associated with
+ option net 'sample_config'
+
+ # Controls which peer group this peer belongs to, optional
+ # For most use cases peer groups aren't necessary
+# option group 'sample_group'
+
+ # The peer's public key
+ option key '0000000000000000000000000000000000000000000000000000000000000000'
+
+ # A remote specification consists of an address or a hostname, and a port
+ # When a hostname is given, it is recommended to specify the address family to use
+ # It is possible to specify no, one or multiple remotes
+ # (but all entries must designate the same host as the public key must be unique)
+# list remote '192.0.2.1:1337'
+# list remote '[2001:db8::1]:1337'
+# list remote '"example.com" port 1337'
+# list remote 'ipv4 "example.com" port 1337'
+# list remote 'ipv6 "example.com" port 1337'
+
+ # Setting float to 1 allow incoming connections with this key from other addresses/hostnames/ports than the specified remotes
+# option float 0
+
+
+config peer_group sample_group
+
+ # Set to 1 to enable this peer group
+ option enabled 0
+
+ # Controls which instance this peer group is associated with
+ # Peer groups can't be used in tun mode
+ option net 'sample_config'
+
+ # Allows configuring nested groups
+# option parent 'other_group'
+
+ # Includes another config file inside the peer group definition
+# list config '/etc/fastd/sample_config/sample_group.conf'
+
+ # Configures a single static peer from a configuration file
+# list config_peer '/etc/fastd/sample_config/sample_peer.conf'
+
+ # Configures an additional peer directory for this group
+# list config_peer_dir '/etc/fastd/sample_config/peers2'
+
+ # Limits the maximum number of connections to peers in this group (optional)
+# option peer_limit 5
diff --git a/doc/examples/openwrt/fastd.init b/doc/examples/openwrt/fastd.init
new file mode 100644
index 0000000..3a20922
--- /dev/null
+++ b/doc/examples/openwrt/fastd.init
@@ -0,0 +1,425 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2012-2013 OpenWrt.org
+
+START=95
+
+SERVICE_USE_PID=1
+
+EXTRA_COMMANDS="up down show_key generate_key"
+
+LIST_SEP="
+"
+TMP_FASTD=/tmp/fastd
+FASTD_COMMAND=/usr/bin/fastd
+
+
+section_enabled() {
+ config_get_bool enabled "$1" 'enabled' 0
+ [ $enabled -gt 0 ]
+}
+
+error() {
+ echo "${initscript}:" "$@" 1>&2
+}
+
+get_key_instance() {
+ local s="$1"
+
+ config_get secret "$s" secret
+ if [ "$secret" = 'generate' ]; then
+ secret=`"$FASTD_COMMAND" --generate-key --machine-readable`
+ uci -q set fastd."$s".secret="$secret" && uci -q commit fastd
+ fi
+
+ echo "$secret"
+}
+
+
+escape_string() {
+ local t=${1//\\/\\\\}
+ echo -n "\"${t//\"/\\\"}\""
+}
+
+guard_value() {
+ local t=${1//[^-a-z0-9\[\].:]/}
+ echo -n "$t"
+}
+
+guard_remote() {
+ local t=${1//[^-a-zA-Z0-9\[\].:\"% ]/}
+ local quotes=${t//[^\"]/}
+ if [ "${#quotes}" = 0 -o "${#quotes}" = 2 ]; then
+ echo -n "$t"
+ fi
+}
+
+yes_no() {
+ case "$1" in
+ 0|no|off|false|disabled) echo -n no;;
+ *) echo -n yes;;
+ esac
+}
+
+config_string_config='include $(escape_string "$value");'
+config_string_config_peer='include peer $(escape_string "$value");'
+config_string_config_peer_dir='include peers from $(escape_string "$value");'
+config_string_bind='bind $(guard_value "$value");'
+config_string_method='method $(escape_string "$value");'
+config_string_syslog_level='log to syslog level $(guard_value "$value");'
+config_string_mode='mode $(guard_value "$value");'
+config_string_interface='interface $(escape_string "$value");'
+config_string_mtu='mtu $(guard_value "$value");'
+config_string_peer_limit='peer limit $(guard_value "$value");'
+config_string_user='user $(escape_string "$value");'
+config_string_group='group $(escape_string "$value");'
+config_string_pmtu='pmtu $(yes_no "$value");'
+config_string_forward='forward $(yes_no "$value");'
+config_string_hide_ip_addresses='hide ip addresses $(yes_no "$value");'
+config_string_hide_mac_addresses='hide mac addresses $(yes_no "$value");'
+config_string_secure_handshakes='secure handshakes $(yes_no "$value");'
+config_string_packet_mark='packet mark $(guard_value "$value");'
+
+config_string_peer='peer $(escape_string "$value") {'
+config_string_peer_group='peer group $(escape_string "$value") {'
+
+peer_string_key='key $(escape_string "$value");'
+peer_string_float='float $(yes_no "$value");'
+peer_string_remote='remote $(guard_remote "$value");'
+
+generate_option() {
+ local __string=$(eval echo \"\$$2\")
+ local value="$1";
+ eval echo "\"$__string\""
+}
+
+append_option() {
+ local v; local len; local s="$1"; local prefix="$2"; local p="$3"
+
+ config_get len "$s" "${p}_LENGTH"
+
+ if [ -z "$len" ]; then
+ config_get v "$s" "$p"
+ [ -n "$v" ] && generate_option "$v" "${prefix}_string_${p}"
+ else
+ config_list_foreach "$s" "$p" generate_option "${prefix}_string_${p}"
+ fi
+}
+
+append_options() {
+ local p; local s="$1"; local prefix="$2"; shift; shift
+ for p in $*; do
+ append_option "$s" "$prefix" "$p"
+ done
+}
+
+
+generate_config_secret() {
+ echo "secret $(escape_string "$1");"
+}
+
+
+generate_peer_config() {
+ local peer="$1"
+
+ # These options are deprecated
+ config_get address "$peer" address
+ config_get hostname "$peer" hostname
+ config_get address_family "$peer" address_family
+ config_get port "$peer" port
+
+ if [ "$address" -o "$hostname" ]; then
+ if [ -z "$port" ]; then
+ error "peer $peer: address or hostname, but no port given"
+ return 1
+ fi
+
+ if [ "$hostname" ]; then
+ generate_option peer_string_remote "$address_family \"$hostname\" port $port"
+ fi
+
+ if [ "$address" ]; then
+ generate_option peer_string_remote "$address port $port"
+ fi
+ fi
+
+ append_options "$peer" peer \
+ key float remote
+}
+
+generate_single_peer_config() {
+ local peer="$1"; local net="$2"
+
+ config_get peer_net "$peer" net
+ config_get peer_group "$peer" group
+ [ "$net" = "$peer_net" -a "$peer_group" = '' ] || return 0
+
+ section_enabled "$peer" || return 0
+
+ generate_option "$peer" config_string_peer
+ generate_peer_config "$peer"
+ echo '}'
+}
+
+create_peer_config() {
+ local peer="$1"; local net="$2"; local group="$3"; local path="$4"
+
+ config_get peer_net "$peer" net
+ config_get peer_group "$peer" group
+ [ "$group" = "$peer_group" ] || return 0
+
+ if [ "$net" != "$peer_net" ]; then
+ [ -z "$group" ] || error "warning: the peer group of peer '$peer' doesn't match its net, the peer will be ignored"
+ return 0
+ fi
+
+ section_enabled "$peer" || return 0
+
+ generate_peer_config "$peer" >"$path/$peer"
+}
+
+update_peer_group() {
+ local net="$1"; local group_dir="$2"; local group="$3"; local update_only="$4"
+ local path="$TMP_FASTD/fastd.$net/$group_dir"
+
+ rm -rf "$path"
+ mkdir -p "$path"
+
+ config_foreach create_peer_config 'peer' "$net" "$group" "$path"
+
+ if [ -z "$update_only" ]; then
+ generate_option "$path" config_string_config_peer_dir
+ fi
+
+ config_foreach generate_peer_group_config 'peer_group' "$net" "$group_dir" "$update_only" "$group"
+}
+
+generate_peer_group_config() {
+ local group="$1"; local net="$2"; local group_dir="$3%$group"; local update_only="$4"; local parent="$5"
+
+ config_get group_net "$group" net
+ config_get group_parent "$group" parent
+ [ "$parent" = "$group_parent" ] || return 0
+
+ if [ "$net" != "$peer_net" ]; then
+ [ -z "$parent" ] || error "warning: the parent of peer group '$group' doesn't match its net, the peer group will be ignored"
+ return 0
+ fi
+
+ section_enabled "$group" || return 0
+
+ if [ -z "$update_only" ]; then
+ generate_option "$group" config_string_peer_group
+ append_options "$group" config \
+ config config_peer config_peer_dir peer_limit
+ fi
+
+ update_peer_group "$net" "$group_dir" "$group" "$update_only"
+
+ if [ -z "$update_only" ]; then
+ echo '}'
+ fi
+}
+
+update_peer_groups() {
+ local net="$1"; local update_only="$2"
+
+ update_peer_group "$net" 'peers' '' "$update_only"
+}
+
+generate_config() {
+ local s="$1"
+
+ generate_option 'info' config_string_syslog_level
+
+ append_options "$s" config \
+ config config_peer config_peer_dir bind method syslog_level mode interface mtu peer_limit \
+ user group pmtu forward hide_ip_addresses hide_mac_addresses secure_handshakes packet_mark
+
+ config_get mode "$s" mode
+
+ if [ "$mode" = "tun" ]; then
+ config_foreach generate_single_peer_config 'peer' "$s"
+ else
+ update_peer_groups "$s"
+ fi
+}
+
+
+generate_key_instance() {
+ local s="$1"
+
+ config_get secret "$s" secret
+ if [ -z "$secret" -o "$secret" = 'generate' ]; then
+ secret=`fastd --generate-key --machine-readable`
+ uci -q set fastd."$s".secret="$secret" && uci -q commit fastd
+ fi
+
+ generate_config_secret "$secret" | "$FASTD_COMMAND" --config - --show-key --machine-readable
+}
+
+show_key_instance() {
+ local s="$1"
+
+ local secret=`get_key_instance "$s"`
+ if [ -z "$secret" ]; then
+ error "$s: secret is not set"
+ return 1
+ fi
+
+ generate_config_secret "$secret" | "$FASTD_COMMAND" --config - --show-key --machine-readable
+}
+
+start_instance() {
+ local s="$1"
+
+ section_enabled "$s" || return 1
+
+ SERVICE_PID_FILE="/var/run/fastd.$s.pid"
+
+ config_get interface "$s" interface
+ if [ -z "$interface" ]; then
+ error "$s: interface is not set"
+ return 1
+ fi
+
+ if ifconfig "$interface" &>/dev/null; then
+ error "$s: interface '$interface' is already in use"
+ return 1
+ fi
+
+ config_get mode "$s" mode
+ if [ -z "$mode" ]; then
+ error "$s: mode is not set"
+ return 1
+ fi
+
+ local secret=`get_key_instance "$s"`
+ if [ -z "$secret" ]; then
+ error "$s: secret is not set"
+ return 1
+ fi
+
+ rm -f "$SERVICE_PID_FILE"
+ touch "$SERVICE_PID_FILE"
+
+ config_get user "$s" user
+ if [ "$user" ]; then
+ chown "$user" "$SERVICE_PID_FILE"
+ fi
+
+ (generate_config_secret "$secret"; generate_config "$s") | service_start "$FASTD_COMMAND" --config - --daemon --pid-file "$SERVICE_PID_FILE"
+
+ if ! ifconfig "$interface" >/dev/null 2>&1; then
+ error "$s: startup failed"
+ return 1
+ fi
+
+ config_get up "$s" up
+ [ -n "$up" ] && sh -c "$up" - "$interface"
+}
+
+stop_instance() {
+ local s="$1"
+
+ section_enabled "$s" || return 1
+
+ SERVICE_PID_FILE="/var/run/fastd.$s.pid"
+
+ config_get interface "$s" interface
+ if [ -z "$interface" ]; then
+ error "$s: interface is not set"
+ return 1
+ fi
+
+ if ! ifconfig "$interface" &>/dev/null; then
+ error "$s: interface '$interface' does not exist"
+ return 1
+ fi
+
+ config_get down "$s" down
+ [ -n "$down" ] && sh -c "$down" - "$interface"
+
+ service_stop "$FASTD_COMMAND"
+
+ rm -rf "$TMP_FASTD/fastd.$s"
+}
+
+reload_instance() {
+ local s="$1"
+
+ section_enabled "$s" || return 1
+
+ config_get mode "$s" mode
+ [ "$mode" = "tun" ] && return 1
+
+ update_peer_groups "$s" true
+
+ SERVICE_PID_FILE="/var/run/fastd.$s.pid"
+ service_reload "$FASTD_COMMAND"
+}
+
+start() {
+ config_load 'fastd'
+ config_foreach start_instance 'fastd'
+ return 0
+}
+
+stop() {
+ config_load 'fastd'
+ config_foreach stop_instance 'fastd'
+ return 0
+}
+
+reload() {
+ config_load 'fastd'
+ config_foreach reload_instance 'fastd'
+ return 0
+}
+
+up() {
+ local exists
+ local instance
+ config_load 'fastd'
+ for instance in "$@"; do
+ config_get exists "$instance" 'TYPE'
+ if [ "$exists" = 'fastd' ]; then
+ start_instance "$instance"
+ fi
+ done
+}
+
+down() {
+ local exists
+ local instance
+ config_load 'fastd'
+ for instance in "$@"; do
+ config_get exists "$instance" 'TYPE'
+ if [ "$exists" = 'fastd' ]; then
+ stop_instance "$instance"
+ fi
+ done
+}
+
+show_key() {
+ local exists
+ local instance
+ config_load 'fastd'
+ for instance in "$@"; do
+ config_get exists "$instance" 'TYPE'
+ if [ "$exists" = 'fastd' ]; then
+ show_key_instance "$instance"
+ fi
+ done
+}
+
+generate_key() {
+ local exists
+ local instance
+ config_load 'fastd'
+ for instance in "$@"; do
+ config_get exists "$instance" 'TYPE'
+ if [ "$exists" = 'fastd' ]; then
+ generate_key_instance "$instance"
+ fi
+ done
+}