cntlr-apis: provide well defined APIs to plugins and other applications

src/Makefile

@@ -34,9 +34,9 @@ OBJS = \
 	main.o \
 	dpp.o \
 	scan.o \
-	steer.o
+	steer.o \
+	steer_module.o
 
-OBJS += steer_module.o
 
 LIBS = -lubus -lubox -ljson-c -lblobmsg_json -luci -pthread
 LIBS += -rdynamic -ldl
@@ -53,11 +53,14 @@ HOOKS = pre-commit
 
 .PHONY: all version.h check clean plugins FORCE
 
-all: version $(EXECS) plugins
+all: version $(EXECS) libcntlr-apis.so plugins
 
 %.o: %.c
 	$(CC) $(CFLAGS) -c -o $@ $<
 
+libcntlr-apis.so: cntlr_apis.o
+	$(CC) -shared -Wl,-soname,libcntlr-apis.so $^ -o $@ $(LIBS) -L.
+
 version.h:
 	@(\
 	[ command -v git > /dev/null 2>&1 ] || { \

src/cntlr_apis.c

+/*
+ * cntlr_apis.c - public APIs available to Controller plugins.
+ *
+ * Copyright (C) 2025 Genexis Sweden AB.
+ *
+ * See LICENSE file for source code license information.
+ *
+ */
+#include "cntlr.h"
+#include "sta.h"
+#include "cntlr_apis.h"
+
+
+int cntlr_register_module(void **controller, void *module)
+{
+	//TODO
+	return -1;
+}
+
+void cntlr_unregister_module(void *module)
+{
+	//TODO
+}
+
+struct wifi_radio_element *cntlr_get_radio_element(void *cntlr, uint8_t *ruid)
+{
+	struct controller *c = (struct controller *)cntlr;
+	struct netif_radio *r;
+
+	r = cntlr_find_radio(c, ruid);
+	return r ? r->radio_el : NULL;
+}
+
+struct wifi_radio_element *cntlr_get_radio_element_by_bssid(void *cntlr, uint8_t *bssid)
+{
+	struct controller *c = (struct controller *)cntlr;
+	struct netif_radio *r = NULL;
+	struct netif_iface *p = NULL;
+	struct node *n = NULL;
+
+	list_for_each_entry(n, &c->nodelist, list) {
+		list_for_each_entry(r, &n->radiolist, list) {
+			list_for_each_entry(p, &r->iflist, list) {
+				if (!memcmp(p->bss->bssid, bssid, 6))
+					return r->radio_el;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+struct wifi_radio_element *cntlr_get_radio_element_in_node_by_band(void *cntlr,
+								   uint8_t *node_almacaddr,
+								   enum wifi_band band)
+{
+	struct controller *c = (struct controller *)cntlr;
+	struct netif_radio *r = NULL;
+	struct node *n;
+
+	n = cntlr_find_node(c, node_almacaddr);
+	if (!n)
+		return NULL;
+
+	r = cntlr_find_radio_in_node_by_band(c, n, band);
+	return r ? r->radio_el : NULL;
+}
+
+struct wifi_sta_element *cntlr_get_sta_element(void *cntlr, uint8_t *macaddr)
+{
+	struct controller *c = (struct controller *)cntlr;
+	struct sta *s;
+
+	s = cntlr_find_sta(c->sta_table, macaddr);
+	return s ? s->de_sta : NULL;
+}

src/cntlr_apis.h

+/*
+ * cntlr_apis.h
+ * Library header file for libcntlr-apis.so.
+ *
+ * Copyright (C) 2025 Genexis Sweden AB.
+ *
+ */
+
+#ifndef CNTLR_APIS_H
+#define CNTLR_APIS_H
+
+#include "wifi_dataelements.h"
+
+int cntlr_register_module(void **controller, void *module);
+void cntlr_unregister_module(void *module);
+
+struct wifi_radio_element *cntlr_get_radio_element(void *cntlr, uint8_t *ruid);
+struct wifi_radio_element *cntlr_get_radio_element_by_bssid(void *cntlr, uint8_t *bssid);
+struct wifi_radio_element *cntlr_get_radio_element_in_node_by_band(void *cntlr,
+								   uint8_t *node_almacaddr,
+								   enum wifi_band band);
+
+
+struct wifi_sta_element *cntlr_get_sta_element(void *cntlr, uint8_t *macaddr);
+
+
+#endif /* CNTLR_APIS_H */