From fadeddfbb2aa38a980dd959b5ec1ffba7afd43cb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 20:02:34 +0200 Subject: Adding upstream version 1.0.18. Signed-off-by: Daniel Baumann --- tests/fuzz_cdp.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 tests/fuzz_cdp.c (limited to 'tests/fuzz_cdp.c') diff --git a/tests/fuzz_cdp.c b/tests/fuzz_cdp.c new file mode 100644 index 0000000..e0fa569 --- /dev/null +++ b/tests/fuzz_cdp.c @@ -0,0 +1,54 @@ +/* -*- mode: c; c-file-style: "openbsd" -*- */ +/* + * Copyright (c) 2023 Vincent Bernat + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "../src/daemon/lldpd.h" + +#define kMinInputLength 5 +#define kMaxInputLength 2048 + +/* Use this callback to avoid some logs */ +void donothing(int pri, const char *msg) {}; + +extern int +LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) +{ + if (Size < kMinInputLength || Size > kMaxInputLength) { + return 1; + } + + struct lldpd_chassis *nchassis = NULL; + struct lldpd_port *nport = NULL; + struct lldpd_hardware hardware; + + log_register(donothing); + + if (!cdpv2_guess((char *)Data, Size)) { + return 1; + } + + cdp_decode(NULL, (char *)Data, Size, &hardware, &nchassis, &nport); + + if (!nchassis || !nport) { + return 1; + } + + lldpd_port_cleanup(nport, 1); + free(nport); + lldpd_chassis_cleanup(nchassis, 1); + + return 0; +} -- cgit v1.2.3