From ca429669ac5b8f0101d0933ff20ee5f152c518b1 Mon Sep 17 00:00:00 2001
From: Ivan Nardi <12729895+IvanNardi@users.noreply.github.com>
Date: Thu, 18 Jul 2024 17:31:07 +0200
Subject: smpp: fix parsing of Generic Nack message (#2496)

---
 src/lib/protocols/smpp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/protocols/smpp.c b/src/lib/protocols/smpp.c
index a0f865f3d..6ab09e98e 100644
--- a/src/lib/protocols/smpp.c
+++ b/src/lib/protocols/smpp.c
@@ -106,7 +106,7 @@ static void ndpi_search_smpp_tcp(struct ndpi_detection_module_struct* ndpi_struc
     // remove 0x80, get request type pdu
     u_int32_t pdu_req = pdu_type & 0x00FFFFFF;
     // list of known PDU types
-    if((pdu_req >  0x00000000 && pdu_req <= 0x00000009) ||
+    if((pdu_req <= 0x00000009) || /* [0-9] */
        (pdu_req == 0x0000000B || pdu_req == 0x00000015  ||
         pdu_req == 0x00000021 || pdu_req == 0x00000102  ||
         pdu_req == 0x00000103)){
-- 
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