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117 lines
3.6 KiB
117 lines
3.6 KiB
/*
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* Fuzz target for cl_scanmap_callback()
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*
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* Copyright (C) 2018-2019 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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* Authors: Micah Snyder, Alex Gaynor
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "clamav.h"
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void clamav_message_callback(enum cl_msg severity, const char *fullmsg,
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const char *msg, void *context) {
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}
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class ClamAVState {
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public:
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ClamAVState() {
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// Silence all the log messages, none of them are meaningful.
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cl_set_clcb_msg(clamav_message_callback);
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cl_init(CL_INIT_DEFAULT);
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engine = cl_engine_new();
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cl_engine_compile(engine);
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}
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~ClamAVState() {
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cl_engine_free(engine);
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}
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struct cl_engine *engine;
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};
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// Global with static initializer to setup an engine so we don't need to do
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// that on each execution.
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ClamAVState kClamAVState;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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struct cl_scan_options scanopts = {0};
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cl_fmap_t *clamav_data = cl_fmap_open_memory(data, size);
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memset(&scanopts, 0, sizeof(struct cl_scan_options));
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scanopts.parse |=
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#if defined(CLAMAV_FUZZ_ARCHIVE)
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CL_SCAN_PARSE_ARCHIVE;
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#elif defined(CLAMAV_FUZZ_MAIL)
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CL_SCAN_PARSE_MAIL;
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#elif defined(CLAMAV_FUZZ_OLE2)
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CL_SCAN_PARSE_OLE2;
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#elif defined(CLAMAV_FUZZ_PDF)
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CL_SCAN_PARSE_PDF;
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#elif defined(CLAMAV_FUZZ_HTML)
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CL_SCAN_PARSE_HTML;
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#elif defined(CLAMAV_FUZZ_PE)
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CL_SCAN_PARSE_PE;
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#elif defined(CLAMAV_FUZZ_ELF)
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CL_SCAN_PARSE_ELF;
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#elif defined(CLAMAV_FUZZ_SWF)
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CL_SCAN_PARSE_SWF;
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#elif defined(CLAMAV_FUZZ_XMLDOCS)
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CL_SCAN_PARSE_XMLDOCS;
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#elif defined(CLAMAV_FUZZ_HWP3)
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CL_SCAN_PARSE_HWP3;
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#else
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~(0);
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#endif
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scanopts.general |= CL_SCAN_GENERAL_HEURISTICS;
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const char *virus_name = nullptr;
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unsigned long scanned = 0;
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cl_scanmap_callback(
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clamav_data,
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NULL,
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&virus_name,
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&scanned,
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kClamAVState.engine,
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&scanopts,
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nullptr
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);
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cl_fmap_close(clamav_data);
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return 0;
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}
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