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authorToni <matzeton@googlemail.com>2021-05-09 15:09:43 +0200
committerGitHub <noreply@github.com>2021-05-09 15:09:43 +0200
commit8c28613eb27983272912d0b99e510eff5416ac60 (patch)
tree910dc86e4ae00811a7a01d9e9057a02615dcffcf /fuzz
parent0663544be8a0e0ea644655b736f9b0a47453c105 (diff)
Check datalink during fuzzing to prevent console / logfile spam. See #1175 for more information. (#1177)
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
Diffstat (limited to 'fuzz')
1 files changed, 8 insertions, 0 deletions
diff --git a/fuzz/fuzz_ndpi_reader.c b/fuzz/fuzz_ndpi_reader.c
index 85d7c317a..49460ef4f 100644
--- a/fuzz/fuzz_ndpi_reader.c
+++ b/fuzz/fuzz_ndpi_reader.c
@@ -66,6 +66,14 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
free(pcap_path);
return 0;
}
+ if (ndpi_is_datalink_supported(pcap_datalink(pkts)) == 0)
+ {
+ /* Do not fail if the datalink type is not supported (may happen often during fuzzing). */
+ pcap_close(pkts);
+ remove(pcap_path);
+ free(pcap_path);
+ return 0;
+ }
struct ndpi_workflow * workflow = ndpi_workflow_init(prefs, pkts);
// enable all protocols
NDPI_BITMASK_SET_ALL(all);
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