net/stunnel: add uci config support

Add uci config support.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

2 files changed, 176 insertions, 2 deletions

diff --git a/net/stunnel/files/stunnel.init b/net/stunnel/files/stunnel.init
index e622205b8..d0b147e98 100644
--- a/net/stunnel/files/stunnel.init
+++ b/net/stunnel/files/stunnel.init
@@ -4,9 +4,173 @@
 START=90
 USE_PROCD=1
 
+PID_FILE="/var/run/stunnel.pid"
+CONF_FILE="/tmp/stunnel.conf"
+BIN="/usr/bin/stunnel"
+
+global_defs() {
+	local debug compression
+
+	config_get alt_config_file 'globals' alt_config_file
+	[ -z "$alt_config_file" ] || return 0
+
+	# Set default settings
+	printf "foreground = yes\n" >> "$CONF_FILE"
+	printf "pid = %s\n" "$PID_FILE" >> "$CONF_FILE"
+	printf "syslog = yes\n" >> "$CONF_FILE"
+
+	config_get debug 'globals' debug '5'
+	printf "debug = %s\n" "$debug" >> "$CONF_FILE"
+
+	config_get compression 'globals' compression
+	[ -z "$compression" ] || printf "compression = %s\n" "$compression" >> "$CONF_FILE"
+}
+
+print_options() {
+	local config=$1
+	shift
+	for opt in "$@"; do
+		local $opt
+		local value
+		local is_boolean=0
+
+		if [ "${opt:0:5}" == "bool_" ]; then
+			opt="${opt:5}"
+			is_boolean=1
+		fi
+
+		config_get "value" "$config" "$opt"
+		[ -z "$value" ] || {
+			if [ "$value" = '1' ] && [ "$is_boolean" -eq "1" ]; then
+				value="yes"
+			elif [ "$value" = '0' ] && [ "$is_boolean" -eq "1" ] ; then
+				value="no"
+			fi
+			printf "%s = %s\n" "$opt" "$value" >> "$CONF_FILE"
+		}
+	done
+}
+
+print_list() {
+	local config=$1
+	shift
+	for opt in "$@"; do
+		local $opt
+		local elements
+		config_get "elements" "$config" "$opt"
+		for element in $elements; do
+			printf "%s = %s\n" "$opt" "$element" >> "$CONF_FILE"
+		done
+	done
+}
+
+print_list_colon() {
+	local config=$1
+	local value
+	shift
+	for opt in "$@"; do
+		local $opt
+		local elements
+		config_get "elements" "$config" "$opt"
+		for element in $elements; do
+			value="${value}:${element}"
+		done
+		printf "%s = %s\n" "$opt" "${value#*:}" >> "$CONF_FILE"
+	done
+}
+
+service_section() {
+	local cfg="$1"
+	local accept_host accept_port
+
+	printf "\n" >> "$CONF_FILE"
+	printf "[%s]\n" "$cfg" >> "$CONF_FILE"
+
+	config_get accept_host "$cfg" accept_host 'localhost'
+	config_get accept_port "$cfg" accept_port
+	printf "accept = %s:%s\n" "$accept_host" "$accept_port" >> "$CONF_FILE"
+
+	print_options "$cfg" CApath \
+		CAfile \
+		cert \
+		CRLpath \
+		CRLfile \
+		curve \
+		logId \
+		debug \
+		engineId \
+		engineNum \
+		failover \
+		ident \
+		key \
+		local \
+		PSKidentity \
+		PSKsecrets \
+		sslVersion \
+		TIMEOUTbusy \
+		TIMEOUTclose \
+		TIMEOUTconnect \
+		TIMEOUTidle \
+		bool_delay \
+		bool_libwrap \
+		bool_reset \
+		bool_requireCert \
+		bool_verifyChain \
+		bool_verifyPeer \
+		bool_client
+
+	print_list "$cfg" checkEmail \
+		checkHost \
+		checkIP \
+		connect \
+		options
+
+	print_list_colon "$cfg" ciphers
+}
+
+process_config() {
+	local alt_config_file
+
+	rm -f "$CONF_FILE"
+
+	# First line
+	printf "; STunnel configuration file generated by uci\n" > "$CONF_FILE"
+	printf "; Written %s\n\n" "$(date +'%c')" >> "$CONF_FILE"
+
+	[ -f /etc/config/stunnel ] || return 0
+
+	config_load stunnel
+	global_defs
+
+	# If "alt_config_file" specified, use that instead
+	[ -n "$alt_config_file" ] && [ -f "$alt_config_file" ] && {
+		rm -f "$CONF_FILE"
+		# Symlink "alt_config_file" since it's a bit easier and safer
+		ln -s "$alt_config_file" "$CONF_FILE"
+		return 0
+	}
+
+	config_foreach service_section service
+}
+
+reload_service() {
+	process_config
+	# SIGHUP is used by stunnel to do init.d reload
+	procd_send_signal stunnel
+}
+
+service_triggers() {
+	procd_add_reload_trigger "stunnel"
+}
+
 start_service() {
 	procd_open_instance
-	procd_set_param command /usr/bin/stunnel /etc/stunnel/stunnel.conf
-	procd_set_param respawn # respawn automatically if something died
+	procd_set_param command "$BIN"
+	procd_append_param command "$CONF_FILE"
+
+	process_config
+
+	# set auto respawn behavior
+	procd_set_param respawn
 	procd_close_instance
 }
diff --git a/net/stunnel/files/stunnel.uci b/net/stunnel/files/stunnel.uci
new file mode 100644
index 000000000..6fad1c6c7
--- /dev/null
+++ b/net/stunnel/files/stunnel.uci
@@ -0,0 +1,10 @@
+config globals 'globals'
+	option alt_config_file '/etc/stunnel/stunnel.conf'
+	option debug '5'
+
+config service 'dummy'
+	option client '1'
+	option accept_host 'localhost'
+	option accept_port '6000'
+	list connect 'localhost:6001'
+