Merge pull request #108 from ifupdown-ng/feature/openrc-init-script

openrc init script

cmd/ifquery.c

@@ -158,6 +158,8 @@ list_interfaces(struct lif_dict *collection, struct match_options *opts)
 		printf("}\n");
 }
 
+static bool listing = false, listing_stat = false, listing_running = false;
+
 void
 list_state(struct lif_dict *state, struct match_options *opts)
 {
@@ -176,12 +178,14 @@ list_state(struct lif_dict *state, struct match_options *opts)
 			continue;
 
 		struct lif_state_record *rec = entry->data;
+
+		if (listing_running)
+			printf("%s\n", entry->key);
+		else
 			printf("%s=%s %zu\n", entry->key, rec->mapped_if, rec->refcount);
 	}
 }
 
-static bool listing = false, listing_stat = false;
-
 static void
 set_listing(const char *opt_arg)
 {
@@ -196,6 +200,13 @@ set_show_state(const char *opt_arg)
 	listing_stat = true;
 }
 
+static void
+set_show_running(const char *opt_arg)
+{
+	(void) opt_arg;
+	listing_running = true;
+}
+
 static void
 set_pretty_print(const char *opt_arg)
 {
@@ -217,6 +228,7 @@ set_property(const char *opt_arg)
 }
 
 static struct if_option local_options[] = {
+	{'r', "running", NULL, "show configured (running) interfaces", false, set_show_running},
 	{'s', "state", NULL, "show configured state", false, set_show_state},
 	{'p', "property", "property PROPERTY", "print values of properties matching PROPERTY", true, set_property},
 	{'D', "dot", NULL, "generate a dependency graph", false, set_output_dot},
@@ -257,7 +269,7 @@ ifquery_main(int argc, char *argv[])
 	}
 
 	/* --list --state is not allowed */
-	if (listing && listing_stat)
+	if (listing && (listing_stat || listing_running))
 		generic_usage(self_applet, EXIT_FAILURE);
 
 	if (listing)
@@ -265,7 +277,7 @@ ifquery_main(int argc, char *argv[])
 		list_interfaces(&collection, &match_opts);
 		return EXIT_SUCCESS;
 	}
-	else if (listing_stat)
+	else if (listing_stat || listing_running)
 	{
 		list_state(&state, &match_opts);
 		return EXIT_SUCCESS;

dist/openrc/networking.confd

@@ -0,0 +1,8 @@
+# Sets the path used for the interface definitions.
+#cfgfile="/etc/network/interfaces"
+
+# Sets the path used for the state database.
+#ifstate="/run/ifstate"
+
+# Skip taking down networking while shutting down.
+#keep_network="YES"

dist/openrc/networking.initd

@@ -0,0 +1,70 @@
+#!/sbin/openrc-run
+
+: ${cfgfile:="/etc/network/interfaces"}
+ifstate=/run/ifstate
+
+single_iface="${RC_SVCNAME#*.}"
+if [ "$single_iface" = "$RC_SVCNAME" ]; then
+	single_iface=
+fi
+
+depend() {
+	need localmount
+	want dev-settle
+	after bootmisc hwdrivers modules
+	provide net
+	keyword -jail -prefix -vserver -docker
+}
+
+# find interfaces we want to start
+find_ifaces() {
+	if [ -n "$single_iface" ]; then
+		echo $single_iface
+	else
+		ifquery -L -i "$cfgfile"
+	fi
+}
+
+# return the list of interfaces we should try stop
+find_running_ifaces() {
+	if [ -n "$single_iface" ]; then
+		echo $single_iface
+	else
+		ifquery -r -i "$cfgfile" -S "$ifstate"
+	fi
+}
+
+start() {
+	local iface= ret=1
+	ebegin "Starting networking"
+	eindent
+	for iface in $(find_ifaces); do
+		local r=0
+		ebegin "$iface"
+		if ! ifup -i "$cfgfile" -S "$ifstate" $iface >/dev/null; then
+			ifdown -f -i "$cfgfile" -S "$ifstate" $iface >/dev/null 2>&1
+			r=1
+		fi
+		# atleast one interface needs to be started for action
+		# to be success
+		eend $r && ret=0
+	done
+	eoutdent
+	return $ret
+}
+
+stop() {
+	local iface=
+	# Don't stop the network at shutdown.
+	yesno ${keep_network:-YES} && yesno $RC_GOINGDOWN && return 0
+
+	ebegin "Stopping networking"
+	eindent
+	for iface in $(find_running_ifaces); do
+		ebegin "$iface"
+		ifdown -i "$cfgfile" -S "$ifstate" -f $iface >/dev/null
+		eend $?
+	done
+	eoutdent
+	return 0
+}

doc/ifquery.scd

@@ -32,6 +32,10 @@ configuration file to the current format.
 *-p, --property* _PROPERTY_
 	Print the values of matching properties for an interface.
 
+*-r, --running*
+	Print the interface names that are marked as running in
+	the state database.
+
 *-s, --state*
 	Query the state database instead of the config database.