Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "specification_parser/SpecificationBuilder.h" |
| 18 | |
| 19 | #include <dirent.h> |
| 20 | |
| 21 | #include <iostream> |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 22 | #include <queue> |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 23 | #include <string> |
| 24 | |
| 25 | #include "fuzz_tester/FuzzerBase.h" |
| 26 | #include "fuzz_tester/FuzzerWrapper.h" |
| 27 | #include "specification_parser/InterfaceSpecificationParser.h" |
| 28 | |
| 29 | #include "test/vts/sysfuzzer/common/proto/InterfaceSpecificationMessage.pb.h" |
| 30 | |
| 31 | namespace android { |
| 32 | namespace vts { |
| 33 | |
Keun Soo Yim | 8103c91 | 2016-04-22 20:07:13 -0700 | [diff] [blame] | 34 | SpecificationBuilder::SpecificationBuilder( |
| 35 | const string dir_path, int epoch_count) |
| 36 | : dir_path_(dir_path), |
Keun Soo Yim | feceb4d | 2016-05-11 20:01:00 -0700 | [diff] [blame] | 37 | epoch_count_(epoch_count), |
| 38 | if_spec_msg_(NULL) {} |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 39 | |
| 40 | |
| 41 | vts::InterfaceSpecificationMessage* |
| 42 | SpecificationBuilder::FindInterfaceSpecification( |
| 43 | const int target_class, |
| 44 | const int target_type, |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 45 | const float target_version, |
| 46 | const string submodule_name) { |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 47 | DIR* dir; |
| 48 | struct dirent* ent; |
| 49 | |
| 50 | if (!(dir = opendir(dir_path_.c_str()))) { |
| 51 | cerr << __FUNCTION__ << ": Can't opendir " << dir_path_ << endl; |
| 52 | return NULL; |
| 53 | } |
| 54 | |
| 55 | while ((ent = readdir(dir))) { |
| 56 | if (string(ent->d_name).find(SPEC_FILE_EXT) != std::string::npos) { |
| 57 | cout << __FUNCTION__ << ": Checking a file " << ent->d_name << endl; |
| 58 | const string file_path = string(dir_path_) + "/" + string(ent->d_name); |
| 59 | vts::InterfaceSpecificationMessage* message = |
| 60 | new vts::InterfaceSpecificationMessage(); |
| 61 | if (InterfaceSpecificationParser::parse(file_path.c_str(), message)) { |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 62 | if (message->component_type() == target_type |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 63 | && message->component_type_version() == target_version) { |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 64 | if (submodule_name.length() > 0) { |
| 65 | if (message->component_class() != HAL_SUBMODULE |
| 66 | || message->original_data_structure_name() != submodule_name) { |
| 67 | continue; |
| 68 | } |
| 69 | } else if (message->component_class() != target_class) continue; |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 70 | closedir(dir); |
| 71 | return message; |
| 72 | } |
| 73 | } |
| 74 | delete message; |
| 75 | } |
| 76 | } |
| 77 | closedir(dir); |
| 78 | return NULL; |
| 79 | } |
| 80 | |
| 81 | |
Keun Soo Yim | 52f5166 | 2016-05-12 17:23:24 -0700 | [diff] [blame] | 82 | FuzzerBase* SpecificationBuilder::GetFuzzerBase( |
| 83 | const vts::InterfaceSpecificationMessage& iface_spec_msg, |
| 84 | const char* dll_file_name, |
| 85 | const char* target_func_name) { |
| 86 | FuzzerBase* fuzzer = wrapper_.GetFuzzer(iface_spec_msg); |
| 87 | if (!fuzzer) { |
| 88 | cerr << __FUNCTION__ << ": couldn't get a fuzzer base class" << endl; |
| 89 | return NULL; |
| 90 | } |
| 91 | if (!fuzzer->LoadTargetComponent(dll_file_name)) return NULL; |
| 92 | |
| 93 | for (const vts::FunctionSpecificationMessage& func_msg : iface_spec_msg.api()) { |
| 94 | if (!strcmp(target_func_name, func_msg.name().c_str())) { |
| 95 | return fuzzer; |
| 96 | } |
| 97 | } |
| 98 | return NULL; |
| 99 | } |
| 100 | |
| 101 | |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 102 | FuzzerBase* SpecificationBuilder::GetFuzzerBaseAndAddAllFunctionsToQueue( |
| 103 | const vts::InterfaceSpecificationMessage& iface_spec_msg, |
| 104 | const char* dll_file_name) { |
| 105 | FuzzerBase* fuzzer = wrapper_.GetFuzzer(iface_spec_msg); |
| 106 | if (!fuzzer) { |
| 107 | cerr << __FUNCTION__ << ": couldn't get a fuzzer base class" << endl; |
| 108 | return NULL; |
| 109 | } |
| 110 | if (!fuzzer->LoadTargetComponent(dll_file_name)) return NULL; |
| 111 | |
| 112 | for (const vts::FunctionSpecificationMessage& func_msg : iface_spec_msg.api()) { |
| 113 | cout << "Add a job " << func_msg.name() << endl; |
| 114 | FunctionSpecificationMessage* func_msg_copy = func_msg.New(); |
| 115 | func_msg_copy->CopyFrom(func_msg); |
| 116 | job_queue_.push(make_pair(func_msg_copy, fuzzer)); |
| 117 | } |
| 118 | return fuzzer; |
| 119 | } |
| 120 | |
| 121 | |
Keun Soo Yim | feceb4d | 2016-05-11 20:01:00 -0700 | [diff] [blame] | 122 | bool SpecificationBuilder::LoadTargetComponent( |
| 123 | const char* dll_file_name, |
| 124 | const char* spec_lib_file_path, |
| 125 | int target_class, |
| 126 | int target_type, |
| 127 | float target_version) { |
| 128 | if_spec_msg_ = FindInterfaceSpecification( |
| 129 | target_class, target_type, target_version); |
| 130 | if (!if_spec_msg_) { |
| 131 | cerr << __FUNCTION__ << |
| 132 | ": no interface specification file found for " |
| 133 | << "class " << target_class |
| 134 | << " type " << target_type |
| 135 | << " version " << target_version << endl; |
| 136 | return false; |
| 137 | } |
Keun Soo Yim | 52f5166 | 2016-05-12 17:23:24 -0700 | [diff] [blame] | 138 | spec_lib_file_path_ = (char*) malloc(strlen(spec_lib_file_path) + 1); |
| 139 | strcpy(spec_lib_file_path_, spec_lib_file_path); |
| 140 | |
| 141 | dll_file_name_ = (char*) malloc(strlen(dll_file_name) + 1); |
| 142 | strcpy(dll_file_name_, dll_file_name); |
| 143 | |
Keun Soo Yim | feceb4d | 2016-05-11 20:01:00 -0700 | [diff] [blame] | 144 | cout << "ifspec addr load " << if_spec_msg_ << endl; |
| 145 | string output; |
| 146 | if_spec_msg_->SerializeToString(&output); |
| 147 | cout << "loaded text " << output.length() << endl; |
| 148 | cout << "loaded text " << strlen(output.c_str()) << endl; |
| 149 | cout << "loaded text " << output << endl; |
| 150 | return true; |
| 151 | } |
| 152 | |
| 153 | |
Keun Soo Yim | 52f5166 | 2016-05-12 17:23:24 -0700 | [diff] [blame] | 154 | bool SpecificationBuilder::CallFunction(FunctionSpecificationMessage* func_msg) { |
| 155 | if (!wrapper_.LoadInterfaceSpecificationLibrary(spec_lib_file_path_)) { |
| 156 | return false; |
| 157 | } |
| 158 | |
| 159 | FuzzerBase* func_fuzzer = GetFuzzerBase( |
| 160 | *if_spec_msg_, dll_file_name_, func_msg->name().c_str()); |
| 161 | if (!func_fuzzer) { |
| 162 | cerr << "can't find FuzzerBase" << endl; |
| 163 | return false; |
| 164 | } |
| 165 | |
| 166 | void* result; |
| 167 | cout << "Call Function " << func_msg->name() << endl; |
| 168 | func_fuzzer->Fuzz(*func_msg, &result); |
| 169 | if (func_msg->return_type().has_aggregate_type()) { |
| 170 | if (result != NULL) { |
| 171 | // loads that interface spec and enqueues all functions. |
| 172 | cout << __FUNCTION__ << " return type: " |
| 173 | << func_msg->return_type().aggregate_type() << endl; |
| 174 | } else { |
| 175 | cout << __FUNCTION__ << " return value = NULL" << endl; |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | return true; |
| 180 | } |
| 181 | |
| 182 | |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 183 | bool SpecificationBuilder::Process( |
| 184 | const char* dll_file_name, |
| 185 | const char* spec_lib_file_path, |
| 186 | int target_class, |
| 187 | int target_type, |
| 188 | float target_version) { |
| 189 | vts::InterfaceSpecificationMessage* interface_specification_message = |
| 190 | FindInterfaceSpecification(target_class, target_type, target_version); |
Keun Soo Yim | feceb4d | 2016-05-11 20:01:00 -0700 | [diff] [blame] | 191 | cout << "ifspec addr " << interface_specification_message << endl; |
| 192 | |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 193 | if (!interface_specification_message) { |
| 194 | cerr << __FUNCTION__ << |
| 195 | ": no interface specification file found for " |
| 196 | << "class " << target_class |
| 197 | << " type " << target_type |
| 198 | << " version " << target_version << endl; |
| 199 | return false; |
| 200 | } |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 201 | |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 202 | if (!wrapper_.LoadInterfaceSpecificationLibrary(spec_lib_file_path)) { |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 203 | return false; |
| 204 | } |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 205 | |
| 206 | if (!GetFuzzerBaseAndAddAllFunctionsToQueue( |
| 207 | *interface_specification_message, dll_file_name)) return false; |
| 208 | |
Keun Soo Yim | 8103c91 | 2016-04-22 20:07:13 -0700 | [diff] [blame] | 209 | for (int i = 0; i < epoch_count_; i++) { |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 210 | // by default, breath-first-searching is used. |
| 211 | if (job_queue_.empty()) { |
| 212 | cout << "no more job to process; stopping after epoch " << i << endl; |
| 213 | break; |
| 214 | } |
| 215 | |
| 216 | pair<vts::FunctionSpecificationMessage*, FuzzerBase*> curr_job = |
| 217 | job_queue_.front(); |
| 218 | job_queue_.pop(); |
| 219 | |
| 220 | vts::FunctionSpecificationMessage* func_msg = curr_job.first; |
| 221 | FuzzerBase* func_fuzzer = curr_job.second; |
| 222 | |
Keun Soo Yim | c5d092a | 2016-04-28 16:51:56 +0000 | [diff] [blame] | 223 | void* result; |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 224 | cout << "Iteration " << (i + 1) << " Function " << func_msg->name() << endl; |
| 225 | func_fuzzer->Fuzz(*func_msg, &result); |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 226 | if (func_msg->return_type().has_aggregate_type()) { |
| 227 | if (result != NULL) { |
| 228 | // loads that interface spec and enqueues all functions. |
| 229 | cout << __FUNCTION__ << " return type: " |
| 230 | << func_msg->return_type().aggregate_type() << endl; |
| 231 | string submodule_name = func_msg->return_type().aggregate_type(); |
| 232 | while (!submodule_name.empty() |
| 233 | && (std::isspace(submodule_name.back()) |
| 234 | || submodule_name.back() == '*' )) { |
| 235 | submodule_name.pop_back(); |
| 236 | } |
| 237 | vts::InterfaceSpecificationMessage* iface_spec_msg = |
| 238 | FindInterfaceSpecification( |
| 239 | target_class, target_type, target_version, submodule_name); |
| 240 | if (iface_spec_msg) { |
| 241 | cout << __FUNCTION__ << " submodule found - " << submodule_name << endl; |
| 242 | if (!GetFuzzerBaseAndAddAllFunctionsToQueue( |
| 243 | *iface_spec_msg, dll_file_name)) { |
| 244 | return false; |
| 245 | } |
| 246 | } else { |
| 247 | cout << __FUNCTION__ << " submodule not found - " << submodule_name << endl; |
| 248 | } |
| 249 | } else { |
| 250 | cout << __FUNCTION__ << " return value = NULL" << endl; |
| 251 | } |
| 252 | } |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 253 | } |
Keun Soo Yim | 2ee9079 | 2016-04-27 14:53:54 -0700 | [diff] [blame] | 254 | |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 255 | return true; |
| 256 | } |
| 257 | |
Keun Soo Yim | feceb4d | 2016-05-11 20:01:00 -0700 | [diff] [blame] | 258 | |
| 259 | vts::InterfaceSpecificationMessage* |
| 260 | SpecificationBuilder::GetInterfaceSpecification() const { |
| 261 | cout << "ifspec addr get " << if_spec_msg_ << endl; |
| 262 | return if_spec_msg_; |
| 263 | } |
| 264 | |
Keun Soo Yim | 0840037 | 2016-03-03 13:28:51 -0800 | [diff] [blame] | 265 | } // namespace vts |
| 266 | } // namespace android |