tools/smp-tester: Improve logging of received SMP PDUs

diff --git a/tools/smp-tester.c b/tools/smp-tester.c
index aa55402..05d620a 100644 (file)
--- a/tools/smp-tester.c
+++ b/tools/smp-tester.c
@@ -661,7 +661,14 @@ static void smp_server(const void *data, uint16_t len, void *user_data)
        const void *pdu;
        uint8_t opcode;
 
-       tester_print("Received SMP PDU");
+       if (len < 1) {
+               tester_warn("Received too small SMP PDU");
+               goto failed;
+       }
+
+       opcode = *((const uint8_t *) data);
+
+       tester_print("Received SMP opcode 0x%02x", opcode);
 
        if (test_data->counter >= smp->req_count) {
                tester_test_passed();
@@ -678,8 +685,6 @@ static void smp_server(const void *data, uint16_t len, void *user_data)
                goto failed;
        }
 
-       opcode = *((const uint8_t *) data);
-
        switch (opcode) {
        case 0x01: /* Pairing Request */
                memcpy(test_data->smp_preq, data, sizeof(test_data->smp_preq));