cec3a60426
SkDescriptor's programatic API is neither exposed for untrusted use nor harded for it. Why are we fuzzing it? Do we need a change in oss-fuzz before deleting this? Bug: oss-fuzz:19648 Bug: oss-fuzz:24417 Change-Id: Id8d075938d831ec8cad4014c8fe6efaef46edb55 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/307177 Reviewed-by: Kevin Lubick <kjlubick@google.com> Reviewed-by: Herb Derby <herb@google.com> Auto-Submit: Mike Klein <mtklein@google.com> Commit-Queue: Mike Klein <mtklein@google.com>
823 lines
30 KiB
C++
823 lines
30 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "fuzz/Fuzz.h"
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#include "include/codec/SkCodec.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkData.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkImageEncoder.h"
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#include "include/core/SkMallocPixelRef.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkStream.h"
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#include "include/core/SkSurface.h"
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#include "include/core/SkTextBlob.h"
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#include "src/core/SkFontMgrPriv.h"
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#include "src/core/SkOSFile.h"
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#include "src/core/SkPicturePriv.h"
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#include "src/core/SkReadBuffer.h"
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#include "src/utils/SkOSPath.h"
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#include "tools/ToolUtils.h"
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#include "tools/flags/CommandLineFlags.h"
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#include "tools/fonts/TestFontMgr.h"
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#include <iostream>
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#include <map>
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#include <regex>
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#include <signal.h>
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static DEFINE_string2(bytes, b, "", "A path to a file or a directory. If a file, the "
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"contents will be used as the fuzz bytes. If a directory, all files "
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"in the directory will be used as fuzz bytes for the fuzzer, one at a "
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"time.");
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static DEFINE_string2(name, n, "", "If --type is 'api', fuzz the API with this name.");
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static DEFINE_string2(dump, d, "", "If not empty, dump 'image*' or 'skp' types as a "
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"PNG with this name.");
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static DEFINE_int(loops, 1, "Run the fuzzer on each input this many times.");
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DEFINE_bool2(verbose, v, false, "Print more information while fuzzing.");
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// This cannot be inlined in DEFINE_string2 due to interleaved ifdefs
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static constexpr char g_type_message[] = "How to interpret --bytes, one of:\n"
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"android_codec\n"
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"animated_image_decode\n"
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"api\n"
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"color_deserialize\n"
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"filter_fuzz (equivalent to Chrome's filter_fuzz_stub)\n"
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"image_decode\n"
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"image_decode_incremental\n"
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"image_mode\n"
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"image_scale\n"
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"json\n"
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"path_deserialize\n"
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"region_deserialize\n"
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"region_set_path\n"
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"skdescriptor_deserialize\n"
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"skp\n"
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"skruntimeeffect\n"
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"sksl2glsl\n"
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"svg_dom\n"
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"sksl2metal\n"
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"sksl2pipeline\n"
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"sksl2spirv\n"
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#if defined(SK_ENABLE_SKOTTIE)
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"skottie_json\n"
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#endif
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"textblob";
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static DEFINE_string2(type, t, "", g_type_message);
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static int fuzz_file(SkString path, SkString type);
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static uint8_t calculate_option(SkData*);
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static SkString try_auto_detect(SkString path, SkString* name);
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static void fuzz_android_codec(sk_sp<SkData>);
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static void fuzz_animated_img(sk_sp<SkData>);
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static void fuzz_api(sk_sp<SkData> bytes, SkString name);
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static void fuzz_color_deserialize(sk_sp<SkData>);
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static void fuzz_filter_fuzz(sk_sp<SkData>);
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static void fuzz_image_decode(sk_sp<SkData>);
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static void fuzz_image_decode_incremental(sk_sp<SkData>);
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static void fuzz_img(sk_sp<SkData>, uint8_t, uint8_t);
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static void fuzz_json(sk_sp<SkData>);
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static void fuzz_path_deserialize(sk_sp<SkData>);
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static void fuzz_region_deserialize(sk_sp<SkData>);
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static void fuzz_region_set_path(sk_sp<SkData>);
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static void fuzz_skdescriptor_deserialize(sk_sp<SkData>);
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static void fuzz_skp(sk_sp<SkData>);
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static void fuzz_skruntimeeffect(sk_sp<SkData>);
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static void fuzz_sksl2glsl(sk_sp<SkData>);
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static void fuzz_sksl2metal(sk_sp<SkData>);
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static void fuzz_sksl2pipeline(sk_sp<SkData>);
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static void fuzz_sksl2spirv(sk_sp<SkData>);
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static void fuzz_svg_dom(sk_sp<SkData>);
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static void fuzz_textblob_deserialize(sk_sp<SkData>);
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static void print_api_names();
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#if defined(SK_ENABLE_SKOTTIE)
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static void fuzz_skottie_json(sk_sp<SkData>);
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#endif
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int main(int argc, char** argv) {
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CommandLineFlags::SetUsage(
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"Usage: fuzz -t <type> -b <path/to/file> [-n api-to-fuzz]\n"
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" fuzz -b <path/to/file>\n"
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"--help lists the valid types. If type is not specified,\n"
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"fuzz will make a guess based on the name of the file.\n");
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CommandLineFlags::Parse(argc, argv);
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gSkFontMgr_DefaultFactory = &ToolUtils::MakePortableFontMgr;
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SkString path = SkString(FLAGS_bytes.isEmpty() ? argv[0] : FLAGS_bytes[0]);
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SkString type = SkString(FLAGS_type.isEmpty() ? "" : FLAGS_type[0]);
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int loopCount = std::max(FLAGS_loops, 1);
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if (!sk_isdir(path.c_str())) {
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for (int i = 0; i < loopCount; ++i) {
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int rv = fuzz_file(path, type);
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if (rv != 0) {
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return rv;
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}
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}
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return 0;
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}
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SkOSFile::Iter it(path.c_str());
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for (SkString file; it.next(&file); ) {
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SkString p = SkOSPath::Join(path.c_str(), file.c_str());
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SkDebugf("Fuzzing %s\n", p.c_str());
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for (int i = 0; i < loopCount; ++i) {
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int rv = fuzz_file(p, type);
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if (rv != 0) {
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return rv;
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}
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}
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}
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return 0;
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}
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static int fuzz_file(SkString path, SkString type) {
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sk_sp<SkData> bytes(SkData::MakeFromFileName(path.c_str()));
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if (!bytes) {
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SkDebugf("Could not read %s\n", path.c_str());
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return 1;
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}
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SkString name = SkString(FLAGS_name.isEmpty() ? "" : FLAGS_name[0]);
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if (type.isEmpty()) {
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type = try_auto_detect(path, &name);
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}
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if (type.isEmpty()) {
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SkDebugf("Could not autodetect type of %s\n", path.c_str());
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return 1;
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}
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if (type.equals("android_codec")) {
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fuzz_android_codec(bytes);
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return 0;
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}
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if (type.equals("animated_image_decode")) {
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fuzz_animated_img(bytes);
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return 0;
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}
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if (type.equals("api")) {
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fuzz_api(bytes, name);
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return 0;
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}
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if (type.equals("color_deserialize")) {
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fuzz_color_deserialize(bytes);
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return 0;
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}
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if (type.equals("filter_fuzz")) {
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fuzz_filter_fuzz(bytes);
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return 0;
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}
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if (type.equals("image_decode")) {
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fuzz_image_decode(bytes);
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return 0;
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}
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if (type.equals("image_decode_incremental")) {
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fuzz_image_decode_incremental(bytes);
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return 0;
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}
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if (type.equals("image_scale")) {
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uint8_t option = calculate_option(bytes.get());
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fuzz_img(bytes, option, 0);
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return 0;
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}
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if (type.equals("image_mode")) {
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uint8_t option = calculate_option(bytes.get());
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fuzz_img(bytes, 0, option);
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return 0;
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}
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if (type.equals("json")) {
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fuzz_json(bytes);
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return 0;
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}
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if (type.equals("path_deserialize")) {
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fuzz_path_deserialize(bytes);
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return 0;
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}
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if (type.equals("region_deserialize")) {
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fuzz_region_deserialize(bytes);
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return 0;
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}
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if (type.equals("region_set_path")) {
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fuzz_region_set_path(bytes);
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return 0;
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}
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if (type.equals("pipe")) {
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SkDebugf("I would prefer not to.\n");
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return 0;
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}
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if (type.equals("skdescriptor_deserialize")) {
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fuzz_skdescriptor_deserialize(bytes);
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return 0;
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}
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#if defined(SK_ENABLE_SKOTTIE)
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if (type.equals("skottie_json")) {
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fuzz_skottie_json(bytes);
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return 0;
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}
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#endif
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if (type.equals("skp")) {
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fuzz_skp(bytes);
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return 0;
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}
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if (type.equals("skruntimeeffect")) {
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fuzz_skruntimeeffect(bytes);
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return 0;
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}
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if (type.equals("sksl2glsl")) {
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fuzz_sksl2glsl(bytes);
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return 0;
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}
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if (type.equals("sksl2metal")) {
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fuzz_sksl2metal(bytes);
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return 0;
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}
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if (type.equals("sksl2spirv")) {
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fuzz_sksl2spirv(bytes);
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return 0;
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}
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if (type.equals("sksl2pipeline")) {
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fuzz_sksl2pipeline(bytes);
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return 0;
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}
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if (type.equals("svg_dom")) {
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fuzz_svg_dom(bytes);
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return 0;
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}
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if (type.equals("textblob")) {
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fuzz_textblob_deserialize(bytes);
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return 0;
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}
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SkDebugf("Unknown type %s\n", type.c_str());
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CommandLineFlags::PrintUsage();
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return 1;
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}
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static std::map<std::string, std::string> cf_api_map = {
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{"api_create_ddl", "CreateDDL"},
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{"api_draw_functions", "DrawFunctions"},
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{"api_gradients", "Gradients"},
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{"api_image_filter", "ImageFilter"},
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{"api_mock_gpu_canvas", "MockGPUCanvas"},
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{"api_null_canvas", "NullCanvas"},
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{"api_path_measure", "PathMeasure"},
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{"api_pathop", "Pathop"},
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{"api_polyutils", "PolyUtils"},
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{"api_raster_n32_canvas", "RasterN32Canvas"},
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{"api_svg_canvas", "SVGCanvas"},
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{"jpeg_encoder", "JPEGEncoder"},
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{"png_encoder", "PNGEncoder"},
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{"skia_pathop_fuzzer", "LegacyChromiumPathop"},
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{"webp_encoder", "WEBPEncoder"}
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};
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// maps clusterfuzz/oss-fuzz -> Skia's name
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static std::map<std::string, std::string> cf_map = {
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{"android_codec", "android_codec"},
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{"animated_image_decode", "animated_image_decode"},
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{"image_decode", "image_decode"},
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{"image_decode_incremental", "image_decode_incremental"},
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{"image_filter_deserialize", "filter_fuzz"},
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{"image_filter_deserialize_width", "filter_fuzz"},
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{"path_deserialize", "path_deserialize"},
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{"region_deserialize", "region_deserialize"},
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{"region_set_path", "region_set_path"},
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{"skdescriptor_deserialize", "skdescriptor_deserialize"},
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{"skjson", "json"},
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{"skruntimeeffect", "skruntimeeffect"},
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{"sksl2glsl", "sksl2glsl"},
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{"sksl2metal", "sksl2metal"},
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{"sksl2spirv", "sksl2spirv"},
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{"sksl2pipeline", "sksl2pipeline"},
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#if defined(SK_ENABLE_SKOTTIE)
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{"skottie_json", "skottie_json"},
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#endif
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{"svg_dom", "svg_dom"},
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{"textblob_deserialize", "textblob"}
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};
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static SkString try_auto_detect(SkString path, SkString* name) {
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std::cmatch m;
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std::regex clusterfuzz("clusterfuzz-testcase(-minimized)?-([a-z0-9_]+)-[\\d]+");
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std::regex skiafuzzer("(api-)?(\\w+)-[a-f0-9]+");
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if (std::regex_search(path.c_str(), m, clusterfuzz)) {
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std::string type = m.str(2);
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if (cf_api_map.find(type) != cf_api_map.end()) {
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*name = SkString(cf_api_map[type].c_str());
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return SkString("api");
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} else {
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if (cf_map.find(type) != cf_map.end()) {
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return SkString(cf_map[type].c_str());
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}
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}
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} else if (std::regex_search(path.c_str(), m, skiafuzzer)) {
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std::string a1 = m.str(1);
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std::string typeOrName = m.str(2);
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if (a1.length() > 0) {
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// it's an api fuzzer
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*name = SkString(typeOrName.c_str());
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return SkString("api");
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} else {
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return SkString(typeOrName.c_str());
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}
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}
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return SkString("");
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}
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void FuzzJSON(sk_sp<SkData> bytes);
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static void fuzz_json(sk_sp<SkData> bytes){
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FuzzJSON(bytes);
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SkDebugf("[terminated] Done parsing!\n");
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}
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#if defined(SK_ENABLE_SKOTTIE)
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void FuzzSkottieJSON(sk_sp<SkData> bytes);
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static void fuzz_skottie_json(sk_sp<SkData> bytes){
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FuzzSkottieJSON(bytes);
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SkDebugf("[terminated] Done animating!\n");
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}
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#endif
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void FuzzSVG(sk_sp<SkData> bytes);
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static void fuzz_svg_dom(sk_sp<SkData> bytes){
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FuzzSVG(bytes);
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SkDebugf("[terminated] Done DOM!\n");
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}
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// This adds up the first 1024 bytes and returns it as an 8 bit integer. This allows afl-fuzz to
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// deterministically excercise different paths, or *options* (such as different scaling sizes or
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// different image modes) without needing to introduce a parameter. This way we don't need a
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// image_scale1, image_scale2, image_scale4, etc fuzzer, we can just have a image_scale fuzzer.
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// Clients are expected to transform this number into a different range, e.g. with modulo (%).
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static uint8_t calculate_option(SkData* bytes) {
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uint8_t total = 0;
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const uint8_t* data = bytes->bytes();
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for (size_t i = 0; i < 1024 && i < bytes->size(); i++) {
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total += data[i];
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}
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return total;
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}
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static void print_api_names(){
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SkDebugf("When using --type api, please choose an API to fuzz with --name/-n:\n");
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for (const Fuzzable& fuzzable : sk_tools::Registry<Fuzzable>::Range()) {
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SkDebugf("\t%s\n", fuzzable.name);
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}
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}
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static void fuzz_api(sk_sp<SkData> bytes, SkString name) {
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for (const Fuzzable& fuzzable : sk_tools::Registry<Fuzzable>::Range()) {
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if (name.equals(fuzzable.name)) {
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SkDebugf("Fuzzing %s...\n", fuzzable.name);
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Fuzz fuzz(std::move(bytes));
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fuzzable.fn(&fuzz);
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SkDebugf("[terminated] Success!\n");
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return;
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}
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}
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print_api_names();
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}
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static void dump_png(SkBitmap bitmap) {
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if (!FLAGS_dump.isEmpty()) {
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ToolUtils::EncodeImageToFile(FLAGS_dump[0], bitmap, SkEncodedImageFormat::kPNG, 100);
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SkDebugf("Dumped to %s\n", FLAGS_dump[0]);
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}
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}
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bool FuzzAnimatedImage(sk_sp<SkData> bytes);
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static void fuzz_animated_img(sk_sp<SkData> bytes) {
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if (FuzzAnimatedImage(bytes)) {
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SkDebugf("[terminated] Success from decoding/drawing animated image!\n");
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return;
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}
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SkDebugf("[terminated] Could not decode or draw animated image.\n");
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}
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bool FuzzImageDecode(sk_sp<SkData> bytes);
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static void fuzz_image_decode(sk_sp<SkData> bytes) {
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if (FuzzImageDecode(bytes)) {
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SkDebugf("[terminated] Success from decoding/drawing image!\n");
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return;
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}
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SkDebugf("[terminated] Could not decode or draw image.\n");
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}
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bool FuzzIncrementalImageDecode(sk_sp<SkData> bytes);
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static void fuzz_image_decode_incremental(sk_sp<SkData> bytes) {
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if (FuzzIncrementalImageDecode(bytes)) {
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SkDebugf("[terminated] Success using incremental decode!\n");
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return;
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}
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SkDebugf("[terminated] Could not incrementally decode and image.\n");
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}
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bool FuzzAndroidCodec(sk_sp<SkData> bytes, uint8_t sampleSize);
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static void fuzz_android_codec(sk_sp<SkData> bytes) {
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Fuzz fuzz(bytes);
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uint8_t sampleSize;
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fuzz.nextRange(&sampleSize, 1, 64);
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bytes = SkData::MakeSubset(bytes.get(), 1, bytes->size() - 1);
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if (FuzzAndroidCodec(bytes, sampleSize)) {
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SkDebugf("[terminated] Success on Android Codec sampleSize=%u!\n", sampleSize);
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return;
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}
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SkDebugf("[terminated] Could not use Android Codec sampleSize=%u!\n", sampleSize);
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}
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// This is a "legacy" fuzzer that likely does too much. It was based off of how
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// DM reads in images. image_decode, image_decode_incremental and android_codec
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// are more targeted fuzzers that do a subset of what this one does.
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static void fuzz_img(sk_sp<SkData> bytes, uint8_t scale, uint8_t mode) {
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// We can scale 1x, 2x, 4x, 8x, 16x
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scale = scale % 5;
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float fscale = (float)pow(2.0f, scale);
|
|
SkDebugf("Scaling factor: %f\n", fscale);
|
|
|
|
// We have 5 different modes of decoding.
|
|
mode = mode % 5;
|
|
SkDebugf("Mode: %d\n", mode);
|
|
|
|
// This is mostly copied from DMSrcSink's CodecSrc::draw method.
|
|
SkDebugf("Decoding\n");
|
|
std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(bytes));
|
|
if (nullptr == codec.get()) {
|
|
SkDebugf("[terminated] Couldn't create codec.\n");
|
|
return;
|
|
}
|
|
|
|
SkImageInfo decodeInfo = codec->getInfo();
|
|
SkISize size = codec->getScaledDimensions(fscale);
|
|
decodeInfo = decodeInfo.makeDimensions(size);
|
|
|
|
SkBitmap bitmap;
|
|
SkCodec::Options options;
|
|
options.fZeroInitialized = SkCodec::kYes_ZeroInitialized;
|
|
|
|
if (!bitmap.tryAllocPixelsFlags(decodeInfo, SkBitmap::kZeroPixels_AllocFlag)) {
|
|
SkDebugf("[terminated] Could not allocate memory. Image might be too large (%d x %d)",
|
|
decodeInfo.width(), decodeInfo.height());
|
|
return;
|
|
}
|
|
|
|
switch (mode) {
|
|
case 0: {//kCodecZeroInit_Mode, kCodec_Mode
|
|
switch (codec->getPixels(decodeInfo, bitmap.getPixels(), bitmap.rowBytes(), &options)) {
|
|
case SkCodec::kSuccess:
|
|
SkDebugf("[terminated] Success!\n");
|
|
break;
|
|
case SkCodec::kIncompleteInput:
|
|
SkDebugf("[terminated] Partial Success\n");
|
|
break;
|
|
case SkCodec::kErrorInInput:
|
|
SkDebugf("[terminated] Partial Success with error\n");
|
|
break;
|
|
case SkCodec::kInvalidConversion:
|
|
SkDebugf("Incompatible colortype conversion\n");
|
|
// Crash to allow afl-fuzz to know this was a bug.
|
|
raise(SIGSEGV);
|
|
break;
|
|
default:
|
|
SkDebugf("[terminated] Couldn't getPixels.\n");
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case 1: {//kScanline_Mode
|
|
if (SkCodec::kSuccess != codec->startScanlineDecode(decodeInfo)) {
|
|
SkDebugf("[terminated] Could not start scanline decoder\n");
|
|
return;
|
|
}
|
|
|
|
void* dst = bitmap.getAddr(0, 0);
|
|
size_t rowBytes = bitmap.rowBytes();
|
|
uint32_t height = decodeInfo.height();
|
|
// We do not need to check the return value. On an incomplete
|
|
// image, memory will be filled with a default value.
|
|
codec->getScanlines(dst, height, rowBytes);
|
|
SkDebugf("[terminated] Success!\n");
|
|
break;
|
|
}
|
|
case 2: { //kStripe_Mode
|
|
const int height = decodeInfo.height();
|
|
// This value is chosen arbitrarily. We exercise more cases by choosing a value that
|
|
// does not align with image blocks.
|
|
const int stripeHeight = 37;
|
|
const int numStripes = (height + stripeHeight - 1) / stripeHeight;
|
|
|
|
// Decode odd stripes
|
|
if (SkCodec::kSuccess != codec->startScanlineDecode(decodeInfo)
|
|
|| SkCodec::kTopDown_SkScanlineOrder != codec->getScanlineOrder()) {
|
|
// This mode was designed to test the new skip scanlines API in libjpeg-turbo.
|
|
// Jpegs have kTopDown_SkScanlineOrder, and at this time, it is not interesting
|
|
// to run this test for image types that do not have this scanline ordering.
|
|
SkDebugf("[terminated] Could not start top-down scanline decoder\n");
|
|
return;
|
|
}
|
|
|
|
for (int i = 0; i < numStripes; i += 2) {
|
|
// Skip a stripe
|
|
const int linesToSkip = std::min(stripeHeight, height - i * stripeHeight);
|
|
codec->skipScanlines(linesToSkip);
|
|
|
|
// Read a stripe
|
|
const int startY = (i + 1) * stripeHeight;
|
|
const int linesToRead = std::min(stripeHeight, height - startY);
|
|
if (linesToRead > 0) {
|
|
codec->getScanlines(bitmap.getAddr(0, startY), linesToRead, bitmap.rowBytes());
|
|
}
|
|
}
|
|
|
|
// Decode even stripes
|
|
const SkCodec::Result startResult = codec->startScanlineDecode(decodeInfo);
|
|
if (SkCodec::kSuccess != startResult) {
|
|
SkDebugf("[terminated] Failed to restart scanline decoder with same parameters.\n");
|
|
return;
|
|
}
|
|
for (int i = 0; i < numStripes; i += 2) {
|
|
// Read a stripe
|
|
const int startY = i * stripeHeight;
|
|
const int linesToRead = std::min(stripeHeight, height - startY);
|
|
codec->getScanlines(bitmap.getAddr(0, startY), linesToRead, bitmap.rowBytes());
|
|
|
|
// Skip a stripe
|
|
const int linesToSkip = std::min(stripeHeight, height - (i + 1) * stripeHeight);
|
|
if (linesToSkip > 0) {
|
|
codec->skipScanlines(linesToSkip);
|
|
}
|
|
}
|
|
SkDebugf("[terminated] Success!\n");
|
|
break;
|
|
}
|
|
case 3: { //kSubset_Mode
|
|
// Arbitrarily choose a divisor.
|
|
int divisor = 2;
|
|
// Total width/height of the image.
|
|
const int W = codec->getInfo().width();
|
|
const int H = codec->getInfo().height();
|
|
if (divisor > W || divisor > H) {
|
|
SkDebugf("[terminated] Cannot codec subset: divisor %d is too big "
|
|
"with dimensions (%d x %d)\n", divisor, W, H);
|
|
return;
|
|
}
|
|
// subset dimensions
|
|
// SkWebpCodec, the only one that supports subsets, requires even top/left boundaries.
|
|
const int w = SkAlign2(W / divisor);
|
|
const int h = SkAlign2(H / divisor);
|
|
SkIRect subset;
|
|
SkCodec::Options opts;
|
|
opts.fSubset = ⊂
|
|
SkBitmap subsetBm;
|
|
// We will reuse pixel memory from bitmap.
|
|
void* pixels = bitmap.getPixels();
|
|
// Keep track of left and top (for drawing subsetBm into canvas). We could use
|
|
// fscale * x and fscale * y, but we want integers such that the next subset will start
|
|
// where the last one ended. So we'll add decodeInfo.width() and height().
|
|
int left = 0;
|
|
for (int x = 0; x < W; x += w) {
|
|
int top = 0;
|
|
for (int y = 0; y < H; y+= h) {
|
|
// Do not make the subset go off the edge of the image.
|
|
const int preScaleW = std::min(w, W - x);
|
|
const int preScaleH = std::min(h, H - y);
|
|
subset.setXYWH(x, y, preScaleW, preScaleH);
|
|
// And fscale
|
|
// FIXME: Should we have a version of getScaledDimensions that takes a subset
|
|
// into account?
|
|
decodeInfo = decodeInfo.makeWH(
|
|
std::max(1, SkScalarRoundToInt(preScaleW * fscale)),
|
|
std::max(1, SkScalarRoundToInt(preScaleH * fscale)));
|
|
size_t rowBytes = decodeInfo.minRowBytes();
|
|
if (!subsetBm.installPixels(decodeInfo, pixels, rowBytes)) {
|
|
SkDebugf("[terminated] Could not install pixels.\n");
|
|
return;
|
|
}
|
|
const SkCodec::Result result = codec->getPixels(decodeInfo, pixels, rowBytes,
|
|
&opts);
|
|
switch (result) {
|
|
case SkCodec::kSuccess:
|
|
case SkCodec::kIncompleteInput:
|
|
case SkCodec::kErrorInInput:
|
|
SkDebugf("okay\n");
|
|
break;
|
|
case SkCodec::kInvalidConversion:
|
|
if (0 == (x|y)) {
|
|
// First subset is okay to return unimplemented.
|
|
SkDebugf("[terminated] Incompatible colortype conversion\n");
|
|
return;
|
|
}
|
|
// If the first subset succeeded, a later one should not fail.
|
|
[[fallthrough]];
|
|
case SkCodec::kUnimplemented:
|
|
if (0 == (x|y)) {
|
|
// First subset is okay to return unimplemented.
|
|
SkDebugf("[terminated] subset codec not supported\n");
|
|
return;
|
|
}
|
|
// If the first subset succeeded, why would a later one fail?
|
|
[[fallthrough]];
|
|
default:
|
|
SkDebugf("[terminated] subset codec failed to decode (%d, %d, %d, %d) "
|
|
"with dimensions (%d x %d)\t error %d\n",
|
|
x, y, decodeInfo.width(), decodeInfo.height(),
|
|
W, H, result);
|
|
return;
|
|
}
|
|
// translate by the scaled height.
|
|
top += decodeInfo.height();
|
|
}
|
|
// translate by the scaled width.
|
|
left += decodeInfo.width();
|
|
}
|
|
SkDebugf("[terminated] Success!\n");
|
|
break;
|
|
}
|
|
case 4: { //kAnimated_Mode
|
|
std::vector<SkCodec::FrameInfo> frameInfos = codec->getFrameInfo();
|
|
if (frameInfos.size() == 0) {
|
|
SkDebugf("[terminated] Not an animated image\n");
|
|
break;
|
|
}
|
|
|
|
for (size_t i = 0; i < frameInfos.size(); i++) {
|
|
options.fFrameIndex = i;
|
|
auto result = codec->startIncrementalDecode(decodeInfo, bitmap.getPixels(),
|
|
bitmap.rowBytes(), &options);
|
|
if (SkCodec::kSuccess != result) {
|
|
SkDebugf("[terminated] failed to start incremental decode "
|
|
"in frame %d with error %d\n", i, result);
|
|
return;
|
|
}
|
|
|
|
result = codec->incrementalDecode();
|
|
if (result == SkCodec::kIncompleteInput || result == SkCodec::kErrorInInput) {
|
|
SkDebugf("okay\n");
|
|
// Frames beyond this one will not decode.
|
|
break;
|
|
}
|
|
if (result == SkCodec::kSuccess) {
|
|
SkDebugf("okay - decoded frame %d\n", i);
|
|
} else {
|
|
SkDebugf("[terminated] incremental decode failed with "
|
|
"error %d\n", result);
|
|
return;
|
|
}
|
|
}
|
|
SkDebugf("[terminated] Success!\n");
|
|
break;
|
|
}
|
|
default:
|
|
SkDebugf("[terminated] Mode not implemented yet\n");
|
|
}
|
|
|
|
dump_png(bitmap);
|
|
}
|
|
|
|
static void fuzz_skp(sk_sp<SkData> bytes) {
|
|
SkReadBuffer buf(bytes->data(), bytes->size());
|
|
SkDebugf("Decoding\n");
|
|
sk_sp<SkPicture> pic(SkPicturePriv::MakeFromBuffer(buf));
|
|
if (!pic) {
|
|
SkDebugf("[terminated] Couldn't decode as a picture.\n");
|
|
return;
|
|
}
|
|
SkDebugf("Rendering\n");
|
|
SkBitmap bitmap;
|
|
if (!FLAGS_dump.isEmpty()) {
|
|
SkIRect size = pic->cullRect().roundOut();
|
|
bitmap.allocN32Pixels(size.width(), size.height());
|
|
}
|
|
SkCanvas canvas(bitmap);
|
|
canvas.drawPicture(pic);
|
|
SkDebugf("[terminated] Success! Decoded and rendered an SkPicture!\n");
|
|
dump_png(bitmap);
|
|
}
|
|
|
|
static void fuzz_color_deserialize(sk_sp<SkData> bytes) {
|
|
sk_sp<SkColorSpace> space(SkColorSpace::Deserialize(bytes->data(), bytes->size()));
|
|
if (!space) {
|
|
SkDebugf("[terminated] Couldn't deserialize Colorspace.\n");
|
|
return;
|
|
}
|
|
SkDebugf("[terminated] Success! deserialized Colorspace.\n");
|
|
}
|
|
|
|
void FuzzPathDeserialize(SkReadBuffer& buf);
|
|
|
|
static void fuzz_path_deserialize(sk_sp<SkData> bytes) {
|
|
SkReadBuffer buf(bytes->data(), bytes->size());
|
|
FuzzPathDeserialize(buf);
|
|
SkDebugf("[terminated] path_deserialize didn't crash!\n");
|
|
}
|
|
|
|
bool FuzzRegionDeserialize(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_region_deserialize(sk_sp<SkData> bytes) {
|
|
if (!FuzzRegionDeserialize(bytes)) {
|
|
SkDebugf("[terminated] Couldn't initialize SkRegion.\n");
|
|
return;
|
|
}
|
|
SkDebugf("[terminated] Success! Initialized SkRegion.\n");
|
|
}
|
|
|
|
void FuzzTextBlobDeserialize(SkReadBuffer& buf);
|
|
|
|
static void fuzz_textblob_deserialize(sk_sp<SkData> bytes) {
|
|
SkReadBuffer buf(bytes->data(), bytes->size());
|
|
FuzzTextBlobDeserialize(buf);
|
|
SkDebugf("[terminated] textblob didn't crash!\n");
|
|
}
|
|
|
|
void FuzzRegionSetPath(Fuzz* fuzz);
|
|
|
|
static void fuzz_region_set_path(sk_sp<SkData> bytes) {
|
|
Fuzz fuzz(bytes);
|
|
FuzzRegionSetPath(&fuzz);
|
|
SkDebugf("[terminated] region_set_path didn't crash!\n");
|
|
}
|
|
|
|
void FuzzImageFilterDeserialize(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_filter_fuzz(sk_sp<SkData> bytes) {
|
|
FuzzImageFilterDeserialize(bytes);
|
|
SkDebugf("[terminated] filter_fuzz didn't crash!\n");
|
|
}
|
|
|
|
bool FuzzSkRuntimeEffect(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_skruntimeeffect(sk_sp<SkData> bytes) {
|
|
if (FuzzSkRuntimeEffect(bytes)) {
|
|
SkDebugf("[terminated] Success! Compiled and Executed sksl code.\n");
|
|
} else {
|
|
SkDebugf("[terminated] Could not Compile or Execute sksl code.\n");
|
|
}
|
|
}
|
|
|
|
bool FuzzSKSL2GLSL(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_sksl2glsl(sk_sp<SkData> bytes) {
|
|
if (FuzzSKSL2GLSL(bytes)) {
|
|
SkDebugf("[terminated] Success! Compiled input to GLSL.\n");
|
|
} else {
|
|
SkDebugf("[terminated] Could not compile input to GLSL.\n");
|
|
}
|
|
}
|
|
|
|
bool FuzzSKSL2SPIRV(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_sksl2spirv(sk_sp<SkData> bytes) {
|
|
if (FuzzSKSL2SPIRV(bytes)) {
|
|
SkDebugf("[terminated] Success! Compiled input to SPIRV.\n");
|
|
} else {
|
|
SkDebugf("[terminated] Could not compile input to SPIRV.\n");
|
|
}
|
|
}
|
|
|
|
bool FuzzSKSL2Metal(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_sksl2metal(sk_sp<SkData> bytes) {
|
|
if (FuzzSKSL2Metal(bytes)) {
|
|
SkDebugf("[terminated] Success! Compiled input to Metal.\n");
|
|
} else {
|
|
SkDebugf("[terminated] Could not compile input to Metal.\n");
|
|
}
|
|
}
|
|
|
|
bool FuzzSKSL2Pipeline(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_sksl2pipeline(sk_sp<SkData> bytes) {
|
|
if (FuzzSKSL2Pipeline(bytes)) {
|
|
SkDebugf("[terminated] Success! Compiled input to pipeline stage.\n");
|
|
} else {
|
|
SkDebugf("[terminated] Could not compile input to pipeline stage.\n");
|
|
}
|
|
}
|
|
|
|
void FuzzSkDescriptorDeserialize(sk_sp<SkData> bytes);
|
|
|
|
static void fuzz_skdescriptor_deserialize(sk_sp<SkData> bytes) {
|
|
FuzzSkDescriptorDeserialize(bytes);
|
|
SkDebugf("[terminated] Did not crash while deserializing an SkDescriptor.\n");
|
|
}
|
|
|