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From:   Inga Stotland <inga.stotland@intel.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     brian.gix@intel.com, Inga Stotland <inga.stotland@intel.com>
Subject: [PATCH BlueZ 3/3] mesh: move model functionality out of node.c to model.c
Date:   Mon, 13 Jul 2020 16:05:28 -0700
Message-Id: <20200713230528.107948-4-inga.stotland@intel.com>
In-Reply-To: <20200713230528.107948-1-inga.stotland@intel.com>
References: <20200713230528.107948-1-inga.stotland@intel.com>
MIME-Version: 1.0
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Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

This moves the model related code out of node.c to model.c providing
for better functional separation of modules.
---
 mesh/cfgmod.h           |   4 +-
 mesh/mesh-config-json.c |   5 +-
 mesh/model.c            | 359 +++++++++++++++++++++++++++++++++-------
 mesh/model.h            |  32 ++--
 mesh/node.c             | 286 ++++----------------------------
 5 files changed, 350 insertions(+), 336 deletions(-)

diff --git a/mesh/cfgmod.h b/mesh/cfgmod.h
index 383fdbf6b..0bfa71680 100644
--- a/mesh/cfgmod.h
+++ b/mesh/cfgmod.h
@@ -17,8 +17,8 @@
  *
  */
 
-#define CONFIG_SRV_MODEL	(VENDOR_ID_MASK | 0x0000)
-#define CONFIG_CLI_MODEL	(VENDOR_ID_MASK | 0x0001)
+#define CONFIG_SRV_MODEL	0x0000
+#define CONFIG_CLI_MODEL	0x0001
 
 /* New List */
 #define OP_APPKEY_ADD				0x00
diff --git a/mesh/mesh-config-json.c b/mesh/mesh-config-json.c
index 88f715fc1..deb0019f9 100644
--- a/mesh/mesh-config-json.c
+++ b/mesh/mesh-config-json.c
@@ -1126,18 +1126,15 @@ static bool parse_models(json_object *jmodels, struct mesh_config_element *ele)
 			if (sscanf(str, "%04x", &id) != 1)
 				goto fail;
 
-			id |= VENDOR_ID_MASK;
 		} else if (len == 8) {
 			if (sscanf(str, "%08x", &id) != 1)
 				goto fail;
+			mod->vendor = true;
 		} else
 			goto fail;
 
 		mod->id = id;
 
-		if (len == 8)
-			mod->vendor = true;
-
 		if (json_object_object_get_ex(jmodel, "bind", &jarray)) {
 			if (json_object_get_type(jarray) != json_type_array ||
 					!parse_bindings(jarray, mod))
diff --git a/mesh/model.c b/mesh/model.c
index afac6ec69..9aecd5b1d 100644
--- a/mesh/model.c
+++ b/mesh/model.c
@@ -137,6 +137,20 @@ static bool match_model_id(const void *a, const void *b)
 	return (mesh_model_get_model_id(model) == id);
 }
 
+static int compare_model_id(const void *a, const void *b, void *user_data)
+{
+	uint32_t a_id = mesh_model_get_model_id(a);
+	uint32_t b_id = mesh_model_get_model_id(b);
+
+	if (a_id < b_id)
+		return -1;
+
+	if (a_id > b_id)
+		return 1;
+
+	return 0;
+}
+
 static struct mesh_model *get_model(struct mesh_node *node, uint8_t ele_idx,
 						uint32_t id, int *status)
 {
@@ -1023,9 +1037,8 @@ done:
 	return result;
 }
 
-int mesh_model_publish(struct mesh_node *node, uint32_t mod_id,
-				uint16_t src, uint8_t ttl,
-				const void *msg, uint16_t msg_len)
+static int model_publish(struct mesh_node *node, uint32_t id, uint16_t src,
+				uint8_t ttl, const void *msg, uint16_t msg_len)
 {
 	struct mesh_net *net = node_get_net(node);
 	struct mesh_model *mod;
@@ -1041,14 +1054,14 @@ int mesh_model_publish(struct mesh_node *node, uint32_t mod_id,
 	if (src == 0)
 		src = mesh_net_get_address(net);
 
-	mod = find_model(node, src, mod_id, &status);
+	mod = find_model(node, src, id, &status);
 	if (!mod) {
-		l_debug("model %x not found", mod_id);
+		l_debug("model %x not found", id);
 		return MESH_ERROR_NOT_FOUND;
 	}
 
 	if (!mod->pub) {
-		l_debug("publication doesn't exist (model %x)", mod_id);
+		l_debug("publication doesn't exist (model %x)", id);
 		return MESH_ERROR_DOES_NOT_EXIST;
 	}
 
@@ -1069,6 +1082,24 @@ int mesh_model_publish(struct mesh_node *node, uint32_t mod_id,
 	return result ? MESH_ERROR_NONE : MESH_ERROR_FAILED;
 }
 
+int mesh_model_publish(struct mesh_node *node, uint16_t mod_id,
+				uint16_t src, uint8_t ttl,
+				const void *msg, uint16_t msg_len)
+{
+	uint32_t id = mod_id | VENDOR_ID_MASK;
+
+	return model_publish(node, id, src, ttl, msg, msg_len);
+}
+
+int mesh_model_vendor_publish(struct mesh_node *node, uint16_t vendor_id,
+				uint16_t mod_id, uint16_t src, uint8_t ttl,
+				const void *msg, uint16_t msg_len)
+{
+	uint32_t id = mod_id | ((uint32_t)(vendor_id) << 16);
+
+	return model_publish(node, id, src, ttl, msg, msg_len);
+}
+
 bool mesh_model_send(struct mesh_node *node, uint16_t src, uint16_t dst,
 					uint16_t app_idx, uint16_t net_idx,
 					uint8_t ttl, bool segmented,
@@ -1173,7 +1204,21 @@ void mesh_model_free(void *data)
 	l_free(mod);
 }
 
-struct mesh_model *mesh_model_new(uint8_t ele_idx, uint32_t id)
+static void remove_subs(struct mesh_node *node, struct mesh_model *mod)
+{
+	const struct l_queue_entry *entry;
+	struct mesh_net *net = node_get_net(node);
+
+	entry = l_queue_get_entries(mod->subs);
+
+	for (; entry; entry = entry->next)
+		mesh_net_dst_unreg(net, (uint16_t) L_PTR_TO_UINT(entry->data));
+
+	l_queue_clear(mod->subs, NULL);
+	l_queue_clear(mod->virtuals, unref_virt);
+}
+
+static struct mesh_model *model_new(uint8_t ele_idx, uint32_t id)
 {
 	struct mesh_model *mod = l_new(struct mesh_model, 1);
 
@@ -1190,6 +1235,95 @@ struct mesh_model *mesh_model_new(uint8_t ele_idx, uint32_t id)
 	return mod;
 }
 
+static void model_enable_pub(struct mesh_model *mod, bool enable)
+{
+	mod->pub_enabled = enable;
+
+	if (!mod->pub_enabled && mod->pub) {
+		if (mod->pub->virt)
+			unref_virt(mod->pub->virt);
+
+		l_free(mod->pub);
+		mod->pub = NULL;
+	}
+}
+
+static void model_enable_sub(struct mesh_node *node, struct mesh_model *mod,
+								bool enable)
+{
+	mod->sub_enabled = enable;
+
+	if (!mod->sub_enabled)
+		remove_subs(node, mod);
+}
+
+static bool get_model_options(struct mesh_node *node, struct mesh_model *mod,
+					struct l_dbus_message_iter *opts)
+{
+	const char *key;
+	struct l_dbus_message_iter var;
+	bool opt;
+
+	while (l_dbus_message_iter_next_entry(opts, &key, &var)) {
+
+		if (!strcmp(key, "Publish")) {
+			if (!l_dbus_message_iter_get_variant(&var, "b", &opt))
+				return false;
+
+			model_enable_pub(mod, opt);
+		} else if (!strcmp(key, "Subscribe")) {
+			if (!l_dbus_message_iter_get_variant(&var, "b", &opt))
+				return false;
+
+			model_enable_sub(node, mod, opt);
+		} else
+			return false;
+	}
+
+	return true;
+}
+
+static bool add_model(struct mesh_node *node, uint8_t ele_idx, uint32_t id,
+					struct l_dbus_message_iter *opts)
+{
+	struct l_queue *mods;
+	struct mesh_model *mod;
+
+	mods = node_get_element_models(node, ele_idx, NULL);
+
+	/* Disallow duplicates */
+	mod = l_queue_find(mods, match_model_id, L_UINT_TO_PTR(id));
+	if (mod)
+		return false;
+
+	mod = model_new(ele_idx, id);
+
+	if (opts && !get_model_options(node, mod, opts)) {
+		mesh_model_free(mod);
+		return false;
+	}
+
+	l_queue_insert(mods, mod, compare_model_id, NULL);
+	return true;
+}
+
+bool mesh_model_add(struct mesh_node *node, uint8_t ele_idx, uint16_t mod_id,
+					struct l_dbus_message_iter *opts)
+{
+	uint32_t id = mod_id | VENDOR_ID_MASK;
+
+	return add_model(node, ele_idx, id, opts);
+}
+
+bool mesh_model_vendor_add(struct mesh_node *node, uint8_t ele_idx,
+					uint16_t vendor_id, uint16_t mod_id,
+					struct l_dbus_message_iter *opts)
+{
+	uint32_t id = mod_id | ((uint32_t)(vendor_id) << 16);
+
+	return add_model(node, ele_idx, id, opts);
+}
+
 /* Internal models only */
 static void restore_model_state(struct mesh_model *mod)
 {
@@ -1220,17 +1354,18 @@ uint32_t mesh_model_get_model_id(const struct mesh_model *model)
 
 /* This registers an internal model, i.e. implemented within meshd */
 bool mesh_model_register(struct mesh_node *node, uint8_t ele_idx,
-					uint32_t mod_id,
+					uint16_t mod_id,
 					const struct mesh_model_ops *cbs,
 					void *user_data)
 {
 	struct mesh_model *mod;
+	uint32_t id;
 	int status;
 
 	/* Internal models are always SIG models */
-	mod_id = VENDOR_ID_MASK | mod_id;
+	id = VENDOR_ID_MASK | mod_id;
 
-	mod = get_model(node, ele_idx, mod_id, &status);
+	mod = get_model(node, ele_idx, id, &status);
 	if (!mod)
 		return false;
 
@@ -1487,20 +1622,6 @@ int mesh_model_sub_del(struct mesh_node *node, uint16_t addr, uint32_t id,
 	return MESH_STATUS_SUCCESS;
 }
 
-static void remove_subs(struct mesh_node *node, struct mesh_model *mod)
-{
-	const struct l_queue_entry *entry;
-	struct mesh_net *net = node_get_net(node);
-
-	entry = l_queue_get_entries(mod->subs);
-
-	for (; entry; entry = entry->next)
-		mesh_net_dst_unreg(net, (uint16_t) L_PTR_TO_UINT(entry->data));
-
-	l_queue_clear(mod->subs, NULL);
-	l_queue_clear(mod->virtuals, unref_virt);
-}
-
 int mesh_model_sub_del_all(struct mesh_node *node, uint16_t addr, uint32_t id)
 {
 	int status;
@@ -1522,12 +1643,10 @@ int mesh_model_sub_del_all(struct mesh_node *node, uint16_t addr, uint32_t id)
 	return MESH_STATUS_SUCCESS;
 }
 
-struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
-								void *data)
+static struct mesh_model *model_setup(struct mesh_net *net, uint8_t ele_idx,
+					struct mesh_config_model *db_mod)
 {
-	struct mesh_config_model *db_mod = data;
 	struct mesh_model *mod;
-	struct mesh_net *net;
 	struct mesh_config_pub *pub = db_mod->pub;
 	uint32_t i;
 
@@ -1537,7 +1656,7 @@ struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
 		return NULL;
 	}
 
-	mod = mesh_model_new(ele_idx, db_mod->vendor ? db_mod->id :
+	mod = model_new(ele_idx, db_mod->vendor ? db_mod->id :
 						db_mod->id | VENDOR_ID_MASK);
 
 	/* Implicitly bind config server model to device key */
@@ -1557,17 +1676,18 @@ struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
 		return mod;
 	}
 
-	net = node_get_net(node);
-
 	/* Add application key bindings if present */
 	if (db_mod->bindings) {
 		mod->bindings = l_queue_new();
 		for (i = 0; i < db_mod->num_bindings; i++)
-			model_bind_idx(node, mod, db_mod->bindings[i]);
+			l_queue_push_tail(mod->bindings,
+					L_UINT_TO_PTR(db_mod->bindings[i]));
 	}
 
-	/* Add publication if present */
-	if (pub) {
+	mod->pub_enabled = db_mod->pub_enabled;
+
+	/* Add publication if enabled and present */
+	if (mod->pub_enabled && pub) {
 		uint8_t retransmit = pub->count +
 					((pub->interval / 50 - 1) << 3);
 		if (pub->virt)
@@ -1579,8 +1699,10 @@ struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
 				pub->ttl, pub->period, retransmit);
 	}
 
-	/* Add subscriptions if present */
-	if (!db_mod->subs)
+	mod->sub_enabled = db_mod->sub_enabled;
+
+	/* Add subscriptions if enabled and present */
+	if (!db_mod->subs || !mod->sub_enabled)
 		return mod;
 
 	for (i = 0; i < db_mod->num_subs; i++) {
@@ -1605,6 +1727,59 @@ struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
 	return mod;
 }
 
+bool mesh_model_add_from_storage(struct mesh_node *node, uint8_t ele_idx,
+				struct l_queue *mods, struct l_queue *db_mods)
+{
+	struct mesh_net *net = node_get_net(node);
+	const struct l_queue_entry *entry;
+
+	/* Allow empty elements */
+	if (!db_mods)
+		return true;
+
+	entry = l_queue_get_entries(db_mods);
+
+	for (; entry; entry = entry->next) {
+		struct mesh_model *mod;
+		struct mesh_config_model *db_mod;
+		uint32_t id;
+
+		db_mod = entry->data;
+
+		id = db_mod->vendor ? db_mod->id : db_mod->id | VENDOR_ID_MASK;
+
+		if (l_queue_find(mods, match_model_id, L_UINT_TO_PTR(id)))
+			return false;
+
+		mod = model_setup(net, ele_idx, db_mod);
+		if (!mod)
+			return false;
+
+		l_queue_insert(mods, mod, compare_model_id, NULL);
+	}
+
+	return true;
+}
+
+void mesh_model_convert_to_storage(struct l_queue *db_mods,
+							struct l_queue *mods)
+{
+
+	const struct l_queue_entry *entry = l_queue_get_entries(mods);
+
+	for (; entry; entry = entry->next) {
+		struct mesh_model *mod = entry->data;
+		struct mesh_config_model *db_mod;
+
+		db_mod = l_new(struct mesh_config_model, 1);
+		db_mod->id = mod->id;
+		db_mod->vendor = mod->id < VENDOR_ID_MASK;
+		db_mod->pub_enabled = mod->pub_enabled;
+		db_mod->sub_enabled = mod->sub_enabled;
+		l_queue_push_tail(db_mods, db_mod);
+	}
+}
+
 uint16_t mesh_model_opcode_set(uint32_t opcode, uint8_t *buf)
 {
 	if (opcode <= 0x7e) {
@@ -1669,7 +1844,7 @@ bool mesh_model_opcode_get(const uint8_t *buf, uint16_t size,
 	return true;
 }
 
-void model_build_config(void *model, void *msg_builder)
+void mesh_model_build_config(void *model, void *msg_builder)
 {
 	struct l_dbus_message_builder *builder = msg_builder;
 	struct mesh_model *mod = model;
@@ -1715,36 +1890,44 @@ void model_build_config(void *model, void *msg_builder)
 	l_dbus_message_builder_leave_struct(builder);
 }
 
-void mesh_model_enable_pub(struct mesh_model *mod, bool enable)
+void mesh_model_update_opts(struct mesh_node *node, uint8_t ele_idx,
+				struct l_queue *curr, struct l_queue *updated)
 {
-	mod->pub_enabled = enable;
+	uint16_t primary;
+	const struct l_queue_entry *entry;
 
-	if (!mod->pub_enabled && mod->pub) {
-		if (mod->pub->virt)
-			unref_virt(mod->pub->virt);
+	primary = node_get_primary(node);
+	entry = l_queue_get_entries(curr);
 
-		l_free(mod->pub);
-		mod->pub = NULL;
-	}
-}
+	for (; entry; entry = entry->next) {
+		struct mesh_model *mod, *updated_mod = entry->data;
+		uint32_t id = mesh_model_get_model_id(updated_mod);
+		bool updated_opt, vendor = id < VENDOR_ID_MASK;
 
-bool mesh_model_is_pub_enabled(struct mesh_model *mod)
-{
-	return mod->pub_enabled;
-}
+		mod = l_queue_find(curr, match_model_id, L_UINT_TO_PTR(id));
+		if (!mod)
+			continue;
 
-void mesh_model_enable_sub(struct mesh_node *node, struct mesh_model *mod,
-								bool enable)
-{
-	mod->sub_enabled = enable;
+		if (!vendor)
+			id &= ~VENDOR_ID_MASK;
 
-	if (!mod->sub_enabled)
-		remove_subs(node, mod);
-}
+		updated_opt = updated_mod->pub_enabled;
+		if (mod->pub_enabled != updated_opt) {
+			model_enable_pub(mod, updated_opt);
+			mesh_config_model_pub_enable(node_config_get(node),
+							primary + ele_idx, id,
+							vendor, updated_opt);
+		}
 
-bool mesh_model_is_sub_enabled(struct mesh_model *mod)
-{
-	return mod->sub_enabled;
+		updated_opt = updated_mod->sub_enabled;
+
+		if (mod->pub_enabled != updated_opt) {
+			model_enable_sub(node, mod, updated_opt);
+			mesh_config_model_sub_enable(node_config_get(node),
+							primary + ele_idx, id,
+							vendor, updated_opt);
+			}
+		}
 }
 
 void mesh_model_init(void)
@@ -1757,3 +1940,59 @@ void mesh_model_cleanup(void)
 	l_queue_destroy(mesh_virtuals, l_free);
 	mesh_virtuals = NULL;
 }
+
+/* Populate composition buffer with model IDs */
+uint16_t mesh_model_generate_composition(struct l_queue *mods, uint16_t buf_sz,
+								uint8_t *buf)
+{
+	const struct l_queue_entry *entry;
+	uint8_t num_s = 0, num_v = 0;
+	uint8_t *mod_buf;
+	uint16_t n;
+
+	/* Store models IDs, store num_s and num_v later */
+	mod_buf = buf;
+	n = 2;
+
+	entry = l_queue_get_entries(mods);
+
+	/* Get SIG models */
+	for (; entry; entry = entry->next) {
+		struct mesh_model *mod = entry->data;
+
+		if (n + 2 > buf_sz)
+			goto done;
+
+		if ((mod->id & VENDOR_ID_MASK) == VENDOR_ID_MASK) {
+			l_put_le16((uint16_t) (mod->id & 0xffff), buf + n);
+			n += 2;
+			num_s++;
+		}
+	}
+
+	/* Get vendor models */
+	entry = l_queue_get_entries(mods);
+
+	for (; entry; entry = entry->next) {
+		struct mesh_model *mod = entry->data;
+		uint16_t vendor;
+
+		if (n + 4 > buf_sz)
+			goto done;
+
+		if ((mod->id & VENDOR_ID_MASK) == VENDOR_ID_MASK)
+			continue;
+
+		vendor = (uint16_t) (mod->id >> 16);
+		l_put_le16(vendor, buf + n);
+		n += 2;
+		l_put_le16((uint16_t) (mod->id & 0xffff), buf + n);
+		n += 2;
+		num_v++;
+	}
+
+done:
+	mod_buf[0] = num_s;
+	mod_buf[1] = num_v;
+	return n;
+}
diff --git a/mesh/model.h b/mesh/model.h
index 0377d3fdd..09309c497 100644
--- a/mesh/model.h
+++ b/mesh/model.h
@@ -60,14 +60,20 @@ struct mesh_model_ops {
 	mesh_model_sub_cb sub;
 };
 
-struct mesh_model *mesh_model_new(uint8_t ele_idx, uint32_t mod_id);
+bool mesh_model_add(struct mesh_node *node, uint8_t ele_idx, uint16_t mod_id,
+					struct l_dbus_message_iter *opts);
+bool mesh_model_vendor_add(struct mesh_node *node, uint8_t ele_idx,
+					uint16_t vendor_id, uint16_t mod_id,
+					struct l_dbus_message_iter *opts);
 void mesh_model_free(void *data);
 uint32_t mesh_model_get_model_id(const struct mesh_model *model);
 bool mesh_model_register(struct mesh_node *node, uint8_t ele_idx,
-			uint32_t mod_id, const struct mesh_model_ops *cbs,
+			uint16_t mod_id, const struct mesh_model_ops *cbs,
 							void *user_data);
-struct mesh_model *mesh_model_setup(struct mesh_node *node, uint8_t ele_idx,
-								void *data);
+bool mesh_model_add_from_storage(struct mesh_node *node, uint8_t ele_idx,
+				struct l_queue *mods, struct l_queue *db_mods);
+void mesh_model_convert_to_storage(struct l_queue *db_mods,
+							struct l_queue *mods);
 struct mesh_model_pub *mesh_model_pub_get(struct mesh_node *node,
 				uint16_t addr, uint32_t mod_id, int *status);
 int mesh_model_pub_set(struct mesh_node *node, uint16_t addr, uint32_t id,
@@ -95,8 +101,11 @@ bool mesh_model_send(struct mesh_node *node, uint16_t src, uint16_t dst,
 					uint16_t app_idx, uint16_t net_idx,
 					uint8_t ttl, bool segmented,
 					const void *msg, uint16_t msg_len);
-int mesh_model_publish(struct mesh_node *node, uint32_t mod_id, uint16_t src,
+int mesh_model_publish(struct mesh_node *node, uint16_t mod_id, uint16_t src,
 				uint8_t ttl, const void *msg, uint16_t msg_len);
+int mesh_model_vendor_publish(struct mesh_node *node, uint16_t vendor_id,
+				uint16_t mod_id, uint16_t src, uint8_t ttl,
+				const void *msg, uint16_t msg_len);
 bool mesh_model_rx(struct mesh_node *node, bool szmict, uint32_t seq0,
 			uint32_t seq, uint32_t iv_index, uint16_t net_idx,
 			uint16_t src, uint16_t dst, uint8_t key_aid,
@@ -108,13 +117,10 @@ struct l_queue *mesh_model_get_appkeys(struct mesh_node *node);
 uint16_t mesh_model_opcode_set(uint32_t opcode, uint8_t *buf);
 bool mesh_model_opcode_get(const uint8_t *buf, uint16_t size, uint32_t *opcode,
 								uint16_t *n);
-void model_build_config(void *model, void *msg_builder);
-
-void mesh_model_enable_pub(struct mesh_model *mod, bool enable);
-bool mesh_model_is_pub_enabled(struct mesh_model *mod);
-void mesh_model_enable_sub(struct mesh_node *node, struct mesh_model *mod,
-								bool enable);
-bool mesh_model_is_sub_enabled(struct mesh_model *mod);
-
+void mesh_model_build_config(void *model, void *msg_builder);
+void mesh_model_update_opts(struct mesh_node *node, uint8_t ele_idx,
+				struct l_queue *curr, struct l_queue *updated);
+uint16_t mesh_model_generate_composition(struct l_queue *mods, uint16_t buf_sz,
+								uint8_t *buf);
 void mesh_model_init(void);
 void mesh_model_cleanup(void);
diff --git a/mesh/node.c b/mesh/node.c
index c61167bda..46cf15d53 100644
--- a/mesh/node.c
+++ b/mesh/node.c
@@ -186,28 +186,6 @@ static bool match_element_path(const void *a, const void *b)
 	return (!strcmp(element->path, path));
 }
 
-static bool match_model_id(const void *a, const void *b)
-{
-	const struct mesh_model *mod = a;
-	uint32_t mod_id = L_PTR_TO_UINT(b);
-
-	return mesh_model_get_model_id(mod) == mod_id;
-}
-
-static int compare_model_id(const void *a, const void *b, void *user_data)
-{
-	uint32_t a_id = mesh_model_get_model_id(a);
-	uint32_t b_id = mesh_model_get_model_id(b);
-
-	if (a_id < b_id)
-		return -1;
-
-	if (a_id > b_id)
-		return 1;
-
-	return 0;
-}
-
 struct mesh_node *node_find_by_uuid(uint8_t uuid[16])
 {
 	return l_queue_find(nodes, match_device_uuid, uuid);
@@ -225,25 +203,6 @@ uint8_t *node_uuid_get(struct mesh_node *node)
 	return node->uuid;
 }
 
-static void add_internal_model(struct mesh_node *node, uint32_t mod_id,
-								uint8_t ele_idx)
-{
-	struct node_element *ele;
-	struct mesh_model *mod;
-
-	ele = l_queue_find(node->elements, match_element_idx,
-							L_UINT_TO_PTR(ele_idx));
-	if (!ele)
-		return;
-
-	if (l_queue_find(ele->models, match_model_id, L_UINT_TO_PTR(mod_id)))
-		return;
-
-	mod = mesh_model_new(ele_idx, mod_id);
-
-	l_queue_insert(ele->models, mod, compare_model_id, NULL);
-}
-
 static void set_defaults(struct mesh_node *node)
 {
 	node->lpn = MESH_MODE_UNSUPPORTED;
@@ -359,46 +318,6 @@ void node_remove(struct mesh_node *node)
 	free_node_resources(node);
 }
 
-static bool add_models_from_storage(struct mesh_node *node,
-					struct node_element *ele,
-					struct mesh_config_element *db_ele)
-{
-	const struct l_queue_entry *entry;
-
-	if (!ele->models)
-		ele->models = l_queue_new();
-
-	entry = l_queue_get_entries(db_ele->models);
-
-	for (; entry; entry = entry->next) {
-		struct mesh_model *mod;
-		struct mesh_config_model *db_mod;
-		uint32_t id;
-
-		db_mod = entry->data;
-
-		id = db_mod->vendor ? db_mod->id : db_mod->id | VENDOR_ID_MASK;
-
-		if (l_queue_find(ele->models, match_model_id,
-							L_UINT_TO_PTR(id)))
-			return false;
-
-		mod = mesh_model_setup(node, ele->idx, db_mod);
-		if (!mod)
-			return false;
-
-		if (!db_mod->pub_enabled)
-			mesh_model_enable_pub(mod, false);
-
-		if (!db_mod->sub_enabled)
-			mesh_model_enable_sub(node, mod, false);
-
-		l_queue_insert(ele->models, mod, compare_model_id, NULL);
-	}
-
-	return true;
-}
-
 static bool add_element_from_storage(struct mesh_node *node,
 					struct mesh_config_element *db_ele)
 {
@@ -411,7 +330,12 @@ static bool add_element_from_storage(struct mesh_node *node,
 	ele->idx = db_ele->index;
 	ele->location = db_ele->location;
 
-	if (!db_ele->models || !add_models_from_storage(node, ele, db_ele))
+
+	if (!ele->models)
+		ele->models = l_queue_new();
+
+	if (!mesh_model_add_from_storage(node, ele->idx, ele->models,
+							db_ele->models))
 		return false;
 
 	l_queue_push_tail(node->elements, ele);
@@ -424,12 +348,13 @@ static bool add_elements_from_storage(struct mesh_node *node,
 	const struct l_queue_entry *entry;
 
 	entry = l_queue_get_entries(db_node->elements);
+
 	for (; entry; entry = entry->next)
 		if (!add_element_from_storage(node, entry->data))
 			return false;
 
 	/* Add configuration server model on the primary element */
-	add_internal_model(node, CONFIG_SRV_MODEL, PRIMARY_ELE_IDX);
+	mesh_model_add(node, PRIMARY_ELE_IDX, CONFIG_SRV_MODEL, NULL);
 
 	return true;
 }
@@ -888,9 +813,8 @@ uint8_t node_friend_mode_get(struct mesh_node *node)
 static uint16_t node_generate_comp(struct mesh_node *node, uint8_t *buf,
 								uint16_t sz)
 {
-	uint16_t n, features;
-	uint16_t num_ele = 0;
-	const struct l_queue_entry *ele_entry;
+	uint16_t n, features, num_ele = 0;
+	const struct l_queue_entry *entry;
 
 	if (!node || sz < MIN_COMP_SIZE)
 		return 0;
@@ -920,12 +844,10 @@ static uint16_t node_generate_comp(struct mesh_node *node, uint8_t *buf,
 	l_put_le16(features, buf + n);
 	n += 2;
 
-	ele_entry = l_queue_get_entries(node->elements);
-	for (; ele_entry; ele_entry = ele_entry->next) {
-		struct node_element *ele = ele_entry->data;
-		const struct l_queue_entry *mod_entry;
-		uint8_t num_s = 0, num_v = 0;
-		uint8_t *mod_buf;
+	entry = l_queue_get_entries(node->elements);
+
+	for (; entry; entry = entry->next) {
+		struct node_element *ele = entry->data;
 
 		if (ele->idx != num_ele)
 			return 0;
@@ -939,59 +861,8 @@ static uint16_t node_generate_comp(struct mesh_node *node, uint8_t *buf,
 		l_put_le16(ele->location, buf + n);
 		n += 2;
 
-		/* Store models IDs, store num_s and num_v later */
-		mod_buf = buf + n;
-		n += 2;
-
-		/* Get SIG models */
-		mod_entry = l_queue_get_entries(ele->models);
-		for (; mod_entry; mod_entry = mod_entry->next) {
-			struct mesh_model *mod = mod_entry->data;
-			uint32_t mod_id;
-
-			mod_id = mesh_model_get_model_id(
-					(const struct mesh_model *) mod);
-
-			if ((mod_id & VENDOR_ID_MASK) == VENDOR_ID_MASK) {
-				if (n + 2 > sz)
-					goto element_done;
-
-				l_put_le16((uint16_t) (mod_id & 0xffff),
+		n += mesh_model_generate_composition(ele->models, sz - n,
 								buf + n);
-				n += 2;
-				num_s++;
-			}
-		}
-
-		/* Get vendor models */
-		mod_entry = l_queue_get_entries(ele->models);
-		for (; mod_entry; mod_entry = mod_entry->next) {
-			struct mesh_model *mod = mod_entry->data;
-			uint32_t mod_id;
-			uint16_t vendor;
-
-			mod_id = mesh_model_get_model_id(
-					(const struct mesh_model *) mod);
-
-			vendor = (uint16_t) (mod_id >> 16);
-			if (vendor != 0xffff) {
-				if (n + 4 > sz)
-					goto element_done;
-
-				l_put_le16(vendor, buf + n);
-				n += 2;
-				l_put_le16((uint16_t) (mod_id & 0xffff),
-								buf + n);
-				n += 2;
-				num_v++;
-			}
-
-		}
-
-element_done:
-		mod_buf[0] = num_s;
-		mod_buf[1] = num_v;
-
 	}
 
 	if (!num_ele)
@@ -1128,52 +999,6 @@ static void app_disc_cb(struct l_dbus *bus, void *user_data)
 	free_node_dbus_resources(node);
 }
 
-static bool get_model_options(struct mesh_node *node, struct mesh_model *mod,
-					struct l_dbus_message_iter *opts)
-{
-	const char *key;
-	struct l_dbus_message_iter var;
-	bool opt;
-
-	while (l_dbus_message_iter_next_entry(opts, &key, &var)) {
-
-		if (!strcmp(key, "Publish")) {
-			if (!l_dbus_message_iter_get_variant(&var, "b", &opt))
-				return false;
-			mesh_model_enable_pub(mod, opt);
-		} else if (!strcmp(key, "Subscribe")) {
-			if (!l_dbus_message_iter_get_variant(&var, "b", &opt))
-				return false;
-			mesh_model_enable_sub(node, mod, opt);
-		} else
-			return false;
-	}
-
-	return true;
-}
-
-static bool generate_model(struct mesh_node *node, struct node_element *ele,
-				uint32_t id, struct l_dbus_message_iter *opts)
-{
-	struct mesh_model *mod;
-
-	/* Disallow duplicates */
-	if (l_queue_find(ele->models, match_model_id,
-			 L_UINT_TO_PTR(id)))
-		return false;
-
-	mod = mesh_model_new(ele->idx, id);
-
-	if (!get_model_options(node, mod, opts)) {
-		l_free(mod);
-		return false;
-	}
-
-	l_queue_insert(ele->models, mod, compare_model_id, NULL);
-
-	return true;
-}
-
 static bool get_sig_models_from_properties(struct mesh_node *node,
 					struct node_element *ele,
 					struct l_dbus_message_iter *property)
@@ -1189,13 +1014,12 @@ static bool get_sig_models_from_properties(struct mesh_node *node,
 
 	/* Bluetooth SIG defined models */
 	while (l_dbus_message_iter_next_entry(&mods, &m_id, &var)) {
-		uint32_t id = m_id | VENDOR_ID_MASK;
 
 		/* Allow Config Server Model only on the primary element */
-		if (ele->idx != PRIMARY_ELE_IDX && id == CONFIG_SRV_MODEL)
+		if (ele->idx != PRIMARY_ELE_IDX && m_id == CONFIG_SRV_MODEL)
 			return false;
 
-		if (!generate_model(node, ele, id, &var))
+		if (!mesh_model_add(node, ele->idx, m_id, &var))
 			return false;
 	}
 
@@ -1217,9 +1041,7 @@ static bool get_vendor_models_from_properties(struct mesh_node *node,
 
 	/* Vendor defined models */
 	while (l_dbus_message_iter_next_entry(&mods, &v_id, &m_id, &var)) {
-		uint32_t id = m_id | (v_id << 16);
-
-		if (!generate_model(node, ele, id, &var))
+		if (!mesh_model_vendor_add(node, ele->idx, v_id, m_id, &var))
 			return false;
 	}
 
@@ -1295,7 +1117,7 @@ static bool get_element_properties(struct mesh_node *node, const char *path,
 	 * the operation below will be a "no-op".
 	 */
 	if (ele->idx == PRIMARY_ELE_IDX)
-		add_internal_model(node, CONFIG_SRV_MODEL, PRIMARY_ELE_IDX);
+		mesh_model_add(node, PRIMARY_ELE_IDX, CONFIG_SRV_MODEL, NULL);
 
 	return true;
 fail:
@@ -1332,7 +1154,6 @@ static void convert_node_to_storage(struct mesh_node *node,
 	for (; entry; entry = entry->next) {
 		struct node_element *ele = entry->data;
 		struct mesh_config_element *db_ele;
-		const struct l_queue_entry *mod_entry;
 
 		db_ele = l_new(struct mesh_config_element, 1);
 
@@ -1340,21 +1161,8 @@ static void convert_node_to_storage(struct mesh_node *node,
 		db_ele->location = ele->location;
 		db_ele->models = l_queue_new();
 
-		mod_entry = l_queue_get_entries(ele->models);
-
-		for (; mod_entry; mod_entry = mod_entry->next) {
-			struct mesh_model *mod = mod_entry->data;
-			struct mesh_config_model *db_mod;
-			uint32_t mod_id = mesh_model_get_model_id(mod);
+		mesh_model_convert_to_storage(db_ele->models, ele->models);
 
-			db_mod = l_new(struct mesh_config_model, 1);
-			db_mod->id = mod_id;
-			db_mod->vendor = ((mod_id & VENDOR_ID_MASK)
-							!= VENDOR_ID_MASK);
-			db_mod->pub_enabled = mesh_model_is_pub_enabled(mod);
-			db_mod->sub_enabled = mesh_model_is_sub_enabled(mod);
-			l_queue_push_tail(db_ele->models, db_mod);
-		}
 		l_queue_push_tail(db_node->elements, db_ele);
 	}
 
@@ -1375,6 +1183,7 @@ static bool create_node_config(struct mesh_node *node, const uint8_t uuid[16])
 
 	/* Free temporarily allocated resources */
 	entry = l_queue_get_entries(db_node.elements);
+
 	for (; entry; entry = entry->next) {
 		struct mesh_config_element *db_ele = entry->data;
 
@@ -1517,7 +1326,6 @@ static void update_model_options(struct mesh_node *node,
 	len = l_queue_length(node->elements);
 
 	for (i = 0; i < len; i++) {
-		const struct l_queue_entry *entry;
 
 		ele = l_queue_find(node->elements, match_element_idx,
 							L_UINT_TO_PTR(i));
@@ -1526,42 +1334,8 @@ static void update_model_options(struct mesh_node *node,
 		if (!ele || !ele_attach)
 			continue;
 
-		entry = l_queue_get_entries(ele->models);
-
-		for (; entry; entry = entry->next) {
-			struct mesh_model *mod, *updated_mod = entry->data;
-			uint32_t id = mesh_model_get_model_id(updated_mod);
-			bool opt, updated_opt;
-			bool vendor = id < VENDOR_ID_MASK;
-
-			mod = l_queue_find(ele_attach->models, match_model_id,
-							L_UINT_TO_PTR(id));
-			if (!mod)
-				continue;
-
-			if (!vendor)
-				id &= ~VENDOR_ID_MASK;
-
-			opt = mesh_model_is_pub_enabled(mod);
-			updated_opt = mesh_model_is_pub_enabled(updated_mod);
-
-			if (updated_opt != opt) {
-				mesh_model_enable_pub(mod, updated_opt);
-				mesh_config_model_pub_enable(attach->cfg,
-							attach->primary + i, id,
-							vendor, updated_opt);
-			}
-
-			opt = mesh_model_is_sub_enabled(mod);
-			updated_opt = mesh_model_is_sub_enabled(updated_mod);
-
-			if (updated_opt != opt) {
-				mesh_model_enable_sub(node, mod, updated_opt);
-				mesh_config_model_sub_enable(attach->cfg,
-							attach->primary + i, id,
-							vendor, updated_opt);
-			}
-		}
+		mesh_model_update_opts(node, ele->idx, ele_attach->models,
+								ele->models);
 	}
 }
 
@@ -1964,7 +1738,7 @@ static void build_element_config(void *a, void *b)
 	l_dbus_message_builder_enter_array(builder, "(qa{sv})");
 
 	/* Iterate over models */
-	l_queue_foreach(ele->models, model_build_config, builder);
+	l_queue_foreach(ele->models, mesh_model_build_config, builder);
 
 	l_dbus_message_builder_leave_array(builder);
 
@@ -2243,7 +2017,7 @@ static struct l_dbus_message *publish_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS,
 							"Incorrect data");
 
-	result = mesh_model_publish(node, VENDOR_ID_MASK | mod_id, src,
+	result = mesh_model_publish(node, mod_id, src,
 				mesh_net_get_default_ttl(node->net), data, len);
 
 	if (result != MESH_ERROR_NONE)
@@ -2260,8 +2034,7 @@ static struct l_dbus_message *vendor_publish_call(struct l_dbus *dbus,
 	const char *sender, *ele_path;
 	struct l_dbus_message_iter iter_data;
 	uint16_t src;
-	uint16_t model_id, vendor;
-	uint32_t vendor_mod_id;
+	uint16_t mod_id, vendor_id;
 	struct node_element *ele;
 	uint8_t *data = NULL;
 	uint32_t len;
@@ -2274,8 +2047,8 @@ static struct l_dbus_message *vendor_publish_call(struct l_dbus *dbus,
 	if (strcmp(sender, node->owner))
 		return dbus_error(msg, MESH_ERROR_NOT_AUTHORIZED, NULL);
 
-	if (!l_dbus_message_get_arguments(msg, "oqqay", &ele_path, &vendor,
-							&model_id, &iter_data))
+	if (!l_dbus_message_get_arguments(msg, "oqqay", &ele_path, &vendor_id,
+							&mod_id, &iter_data))
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
 
 	ele = l_queue_find(node->elements, match_element_path, ele_path);
@@ -2290,8 +2063,7 @@ static struct l_dbus_message *vendor_publish_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS,
 							"Incorrect data");
 
-	vendor_mod_id = (vendor << 16) | model_id;
-	result = mesh_model_publish(node, vendor_mod_id, src,
+	result = mesh_model_vendor_publish(node, vendor_id, mod_id, src,
 				mesh_net_get_default_ttl(node->net), data, len);
 
 	if (result != MESH_ERROR_NONE)
-- 
2.26.2