From:   Inga Stotland <inga.stotland@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     brian.gix@gmail.com, brian.gix@intel.com,
        Inga Stotland <inga.stotland@gmail.com>
Subject: [PATCH BlueZ v2 1/2] tools/mesh-cfgclient: Prevent storing duplicate models
Date:   Thu, 16 Mar 2023 14:33:11 -0700
Message-Id: <20230316213312.159370-1-inga.stotland@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

This fixes the situation when subsequent requests to get a node
composition result in appending element's model list with duplicate models.
This adds a check for a presence of a model on an element when attempting
to add a new model ID to a model list on this element.
---
 tools/mesh/mesh-db.c | 17 ++++++++++++-----
 tools/mesh/remote.c  |  9 +++++++++
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/tools/mesh/mesh-db.c b/tools/mesh/mesh-db.c
index c0c05a29a..1d047691d 100644
--- a/tools/mesh/mesh-db.c
+++ b/tools/mesh/mesh-db.c
@@ -1964,28 +1964,35 @@ bool mesh_db_node_set_composition(uint16_t unicast, uint8_t *data, uint16_t len)
 
 		while (len >= 2 && m--) {
 			mod_id = l_get_le16(data);
+			data += 2;
+			len -= 2;
+
+			jobj = get_model(unicast, unicast + i, mod_id, false);
+			if (jobj)
+				continue;
 
 			jobj = init_model(mod_id);
 			if (!jobj)
 				goto fail;
 
 			json_object_array_add(jmods, jobj);
-			data += 2;
-			len -= 2;
 		}
 
 		while (len >= 4 && v--) {
 			mod_id = l_get_le16(data + 2);
 			mod_id = l_get_le16(data) << 16 | mod_id;
+			data += 4;
+			len -= 4;
+
+			jobj = get_model(unicast, unicast + i, mod_id, true);
+			if (jobj)
+				continue;
 
 			jobj = init_vendor_model(mod_id);
 			if (!jobj)
 				goto fail;
 
 			json_object_array_add(jmods, jobj);
-
-			data += 4;
-			len -= 4;
 		}
 
 		i++;
diff --git a/tools/mesh/remote.c b/tools/mesh/remote.c
index cee711dec..b917ae9df 100644
--- a/tools/mesh/remote.c
+++ b/tools/mesh/remote.c
@@ -54,6 +54,11 @@ struct rejected_addr {
 static struct l_queue *nodes;
 static struct l_queue *reject_list;
 
+static bool match_mod_id(const void *a, const void *b)
+{
+	return a == b;
+}
+
 static int compare_mod_id(const void *a, const void *b, void *user_data)
 {
 	uint32_t id1 = L_PTR_TO_UINT(a);
@@ -227,6 +232,10 @@ bool remote_set_model(uint16_t unicast, uint8_t ele_idx, uint32_t mod_id,
 	if (!vendor)
 		mod_id = VENDOR_ID_MASK | mod_id;
 
+	if (l_queue_find(rmt->els[ele_idx], match_mod_id,
+							L_UINT_TO_PTR(mod_id)))
+		return true;
+
 	l_queue_insert(rmt->els[ele_idx], L_UINT_TO_PTR(mod_id),
 							compare_mod_id, NULL);
 
-- 
2.39.2