From: Jakub Witowski <jakub.witowski@xxxxxxxxxxx>
Contrary to the comment, implementation used a 8-byte MIC even if this
generated an additional segment.
---
mesh/model.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mesh/model.c b/mesh/model.c
index a632d80e1..0b3ea4094 100644
--- a/mesh/model.c
+++ b/mesh/model.c
@@ -40,6 +40,8 @@
#include "mesh/util.h"
#include "mesh/model.h"
+#define CEILDIV(val, div) (((val) / (div)) + ((val) % (div) != 0))
+
struct mesh_model {
const struct mesh_model_ops *cbs;
void *user_data;
@@ -451,7 +453,7 @@ static bool msg_send(struct mesh_node *node, bool credential, uint16_t src,
/* Use large MIC if it doesn't affect segmentation */
if (msg_len > 11 && msg_len <= 376) {
- if ((out_len / 12) == ((out_len + 4) / 12)) {
+ if (CEILDIV(out_len, 12) == CEILDIV(out_len + 4, 12)) {
szmic = true;
out_len = msg_len + sizeof(uint64_t);
}
--
2.19.1
