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From:   =?UTF-8?q?Micha=C5=82=20Lowas-Rzechonek?= 
        <michal.lowas-rzechonek@silvair.com>
To:     linux-bluetooth@vger.kernel.org
Subject: [PATCH BlueZ v4 5/5] mesh: Check that config server is present in primary element
Date:   Thu, 25 Jul 2019 21:49:33 +0200
Message-Id: <20190725194933.7321-6-michal.lowas-rzechonek@silvair.com>
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References: <20190725194933.7321-1-michal.lowas-rzechonek@silvair.com>
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This verifies that Config Server model is supported by element #0, and
is not supported by any other element.
---
 mesh/node.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/mesh/node.c b/mesh/node.c
index 1709a25ba..0b02089bf 100644
--- a/mesh/node.c
+++ b/mesh/node.c
@@ -899,6 +899,8 @@ uint16_t node_generate_comp(struct mesh_node *node, uint8_t *buf, uint16_t sz)
 {
 	uint16_t n, features;
 	uint16_t num_ele = 0;
+	uint8_t *cfgmod_idx = NULL;
+
 	const struct l_queue_entry *ele_entry;
 
 	if (!node || !node->comp || sz < MIN_COMP_SIZE)
@@ -961,6 +963,9 @@ uint16_t node_generate_comp(struct mesh_node *node, uint8_t *buf, uint16_t sz)
 			mod_id = mesh_model_get_model_id(
 					(const struct mesh_model *) mod);
 
+			if (mod_id == CONFIG_SRV_MODEL)
+				cfgmod_idx = &ele->idx;
+
 			if ((mod_id & VENDOR_ID_MASK) == VENDOR_ID_MASK) {
 				if (n + 2 > sz)
 					goto element_done;
@@ -1006,6 +1011,9 @@ element_done:
 	if (!num_ele)
 		return 0;
 
+	if (!cfgmod_idx || *cfgmod_idx != PRIMARY_ELE_IDX)
+		return 0;
+
 	return n;
 }
 
-- 
2.22.0