fuzz: extend coverage (#2073)

1 files changed, 47 insertions, 0 deletions

diff --git a/fuzz/fuzz_filecfg_protocols.c b/fuzz/fuzz_filecfg_protocols.c
new file mode 100644
index 000000000..cba26c07c
--- /dev/null
+++ b/fuzz/fuzz_filecfg_protocols.c
@@ -0,0 +1,47 @@
+#include "ndpi_api.h"
+#include "fuzz_common_code.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  struct ndpi_detection_module_struct *ndpi_struct;
+  FILE *fd;
+  /* Try to be fast */
+  ndpi_init_prefs prefs = ndpi_dont_load_tor_list |
+			  ndpi_dont_load_azure_list |
+			  ndpi_dont_load_whatsapp_list |
+			  ndpi_dont_load_amazon_aws_list |
+			  ndpi_dont_load_ethereum_list |
+			  ndpi_dont_load_zoom_list |
+			  ndpi_dont_load_cloudflare_list |
+			  ndpi_dont_load_microsoft_list |
+			  ndpi_dont_load_google_list |
+			  ndpi_dont_load_google_cloud_list |
+			  ndpi_dont_load_asn_lists |
+			  ndpi_dont_init_risk_ptree |
+			  ndpi_dont_load_cachefly_list |
+			  ndpi_dont_load_protonvpn_list |
+			  ndpi_dont_load_gambling_list |
+			  ndpi_dont_load_mullvad_list;
+  NDPI_PROTOCOL_BITMASK all;
+  NDPI_PROTOCOL_BITMASK debug_bitmask;
+
+  /* To allow memory allocation failures */
+  fuzz_set_alloc_callbacks_and_seed(size);
+
+  ndpi_struct = ndpi_init_detection_module(prefs);
+  NDPI_BITMASK_SET_ALL(all);
+  ndpi_set_protocol_detection_bitmask2(ndpi_struct, &all);
+
+  NDPI_BITMASK_SET_ALL(debug_bitmask);
+  ndpi_set_log_level(ndpi_struct, 4);
+  ndpi_set_debug_bitmask(ndpi_struct, debug_bitmask);
+
+  fd = buffer_to_file(data, size);
+  ndpi_load_protocols_file2(ndpi_struct, fd);
+  if(fd)
+    fclose(fd);
+
+  /* We don't really need to call ndpi_finalize_initialization */
+ 
+  ndpi_exit_detection_module(ndpi_struct);
+  return 0;
+}