From: Philippe Antoine <contact@catenacyber.fr>
Date: Fri, 19 Jun 2020 09:43:04 +0000 (+0200)
Subject: fuzz: disable DNP3 checksums while fuzzing
X-Git-Tag: suricata-5.0.4~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05f554e69287774290a51fc1d3e019e39b1e36cc;p=thirdparty%2Fsuricata.git

fuzz: disable DNP3 checksums while fuzzing

(cherry picked from commit 8a61f754c485b6c956c31c26176112d45d68b6e8)
---

diff --git a/src/app-layer-dnp3.c b/src/app-layer-dnp3.c
index d2faa6aa12..6203ed9d81 100644
--- a/src/app-layer-dnp3.c
+++ b/src/app-layer-dnp3.c
@@ -175,6 +175,9 @@ static uint16_t DNP3ComputeCRC(const uint8_t *buf, uint32_t len)
  */
 static int DNP3CheckCRC(const uint8_t *block, uint32_t len)
 {
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+    return 1;
+#endif
     uint32_t crc_offset;
     uint16_t crc;