| /* |
| * Copyright (C) 2015, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "aidl.h" |
| |
| #include <fcntl.h> |
| #include <iostream> |
| #include <map> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/param.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| #ifdef _WIN32 |
| #include <io.h> |
| #include <direct.h> |
| #include <sys/stat.h> |
| #endif |
| |
| |
| #include "aidl_language.h" |
| #include "generate_cpp.h" |
| #include "generate_java.h" |
| #include "logging.h" |
| #include "options.h" |
| #include "os.h" |
| #include "parse_helpers.h" |
| #include "search_path.h" |
| #include "type_java.h" |
| #include "type_namespace.h" |
| |
| #ifndef O_BINARY |
| # define O_BINARY 0 |
| #endif |
| |
| using std::cerr; |
| using std::endl; |
| using std::map; |
| using std::set; |
| using std::string; |
| using std::unique_ptr; |
| using std::vector; |
| |
| namespace android { |
| namespace aidl { |
| namespace { |
| |
| // The following are gotten as the offset from the allowable id's between |
| // android.os.IBinder.FIRST_CALL_TRANSACTION=1 and |
| // android.os.IBinder.LAST_CALL_TRANSACTION=16777215 |
| const int kMinUserSetMethodId = 0; |
| const int kMaxUserSetMethodId = 16777214; |
| |
| int check_filename(const char* filename, |
| const char* package, |
| buffer_type* name) { |
| const char* p; |
| string expected; |
| string fn; |
| size_t len; |
| char cwd[MAXPATHLEN]; |
| bool valid = false; |
| |
| #ifdef _WIN32 |
| if (isalpha(filename[0]) && filename[1] == ':' |
| && filename[2] == OS_PATH_SEPARATOR) { |
| #else |
| if (filename[0] == OS_PATH_SEPARATOR) { |
| #endif |
| fn = filename; |
| } else { |
| fn = getcwd(cwd, sizeof(cwd)); |
| len = fn.length(); |
| if (fn[len-1] != OS_PATH_SEPARATOR) { |
| fn += OS_PATH_SEPARATOR; |
| } |
| fn += filename; |
| } |
| |
| if (package) { |
| expected = package; |
| expected += '.'; |
| } |
| |
| len = expected.length(); |
| for (size_t i=0; i<len; i++) { |
| if (expected[i] == '.') { |
| expected[i] = OS_PATH_SEPARATOR; |
| } |
| } |
| |
| p = strchr(name->data, '.'); |
| len = p ? p-name->data : strlen(name->data); |
| expected.append(name->data, len); |
| |
| expected += ".aidl"; |
| |
| len = fn.length(); |
| valid = (len >= expected.length()); |
| |
| if (valid) { |
| p = fn.c_str() + (len - expected.length()); |
| |
| #ifdef _WIN32 |
| if (OS_PATH_SEPARATOR != '/') { |
| // Input filename under cygwin most likely has / separators |
| // whereas the expected string uses \\ separators. Adjust |
| // them accordingly. |
| for (char *c = const_cast<char *>(p); *c; ++c) { |
| if (*c == '/') *c = OS_PATH_SEPARATOR; |
| } |
| } |
| #endif |
| |
| // aidl assumes case-insensitivity on Mac Os and Windows. |
| #if defined(__linux__) |
| valid = (expected == p); |
| #else |
| valid = !strcasecmp(expected.c_str(), p); |
| #endif |
| } |
| |
| if (!valid) { |
| fprintf(stderr, "%s:%d interface %s should be declared in a file" |
| " called %s.\n", |
| filename, name->lineno, name->data, expected.c_str()); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| int check_filenames(const char* filename, document_item_type* items) { |
| int err = 0; |
| while (items) { |
| if (items->item_type == USER_DATA_TYPE) { |
| user_data_type* p = (user_data_type*)items; |
| err |= check_filename(filename, p->package, &p->name); |
| } |
| else if (items->item_type == INTERFACE_TYPE_BINDER) { |
| interface_type* c = (interface_type*)items; |
| err |= check_filename(filename, c->package, &c->name); |
| } |
| else { |
| fprintf(stderr, "aidl: internal error unkown document type %d.\n", |
| items->item_type); |
| return 1; |
| } |
| items = items->next; |
| } |
| return err; |
| } |
| |
| char* rfind(char* str, char c) { |
| char* p = str + strlen(str) - 1; |
| while (p >= str) { |
| if (*p == c) { |
| return p; |
| } |
| p--; |
| } |
| return NULL; |
| } |
| |
| bool gather_types(const char* raw_filename, |
| document_item_type* all_items, |
| TypeNamespace* types) { |
| bool success = true; |
| if (raw_filename == nullptr) |
| raw_filename = ""; |
| const std::string filename{raw_filename}; |
| |
| for (document_item_type* item = all_items; item; item = item->next) { |
| if (item->item_type == USER_DATA_TYPE) { |
| user_data_type* p = (user_data_type*)item; |
| success &= types->AddParcelableType(p, filename); |
| } else if (item->item_type == INTERFACE_TYPE_BINDER) { |
| interface_type* c = (interface_type*)item; |
| success &= types->AddBinderType(c, filename); |
| } else { |
| LOG(FATAL) << "internal error"; |
| } |
| } |
| return success; |
| } |
| |
| int check_types(const string& filename, |
| interface_type* c, |
| TypeNamespace* types) { |
| int err = 0; |
| map<string,method_type*> method_names; |
| for (method_type* m = c->interface_items; m; m = m->next) { |
| if (!types->AddContainerType(m->type.type.data) || |
| !types->IsValidReturnType(&m->type, filename)) { |
| err = 1; // return type is invalid |
| } |
| |
| int index = 1; |
| for (const std::unique_ptr<AidlArgument>& arg : *m->args) { |
| if (!types->AddContainerType(arg->type.type.data) || |
| !types->IsValidArg(*arg, index, filename)) { |
| err = 1; |
| } |
| } |
| |
| // prevent duplicate methods |
| if (method_names.find(m->name.data) == method_names.end()) { |
| method_names[m->name.data] = m; |
| } else { |
| cerr << filename << ":" << m->name.lineno |
| << " attempt to redefine method " << m->name.data << "," << endl |
| << filename << ":" << m->name.lineno |
| << " previously defined here." << endl; |
| err = 1; |
| } |
| } |
| return err; |
| } |
| |
| void generate_dep_file(const JavaOptions& options, |
| const document_item_type* items, |
| import_info* import_head) { |
| /* we open the file in binary mode to ensure that the same output is |
| * generated on all platforms !! |
| */ |
| FILE* to = NULL; |
| if (options.auto_dep_file_) { |
| string fileName = options.output_file_name_ + ".d"; |
| to = fopen(fileName.c_str(), "wb"); |
| } else { |
| to = fopen(options.dep_file_name_.c_str(), "wb"); |
| } |
| |
| if (to == NULL) { |
| return; |
| } |
| |
| const char* slash = "\\"; |
| import_info* import = import_head; |
| if (import == NULL) { |
| slash = ""; |
| } |
| |
| if (items->item_type == INTERFACE_TYPE_BINDER) { |
| fprintf(to, "%s: \\\n", options.output_file_name_.c_str()); |
| } else { |
| // parcelable: there's no output file. |
| fprintf(to, " : \\\n"); |
| } |
| fprintf(to, " %s %s\n", options.input_file_name_.c_str(), slash); |
| |
| while (import) { |
| if (import->next == NULL) { |
| slash = ""; |
| } |
| if (import->filename) { |
| fprintf(to, " %s %s\n", import->filename, slash); |
| } |
| import = import->next; |
| } |
| |
| fprintf(to, "\n"); |
| |
| // Output "<input_aidl_file>: " so make won't fail if the input .aidl file |
| // has been deleted, moved or renamed in incremental build. |
| fprintf(to, "%s :\n", options.input_file_name_.c_str()); |
| |
| // Output "<imported_file>: " so make won't fail if the imported file has |
| // been deleted, moved or renamed in incremental build. |
| import = import_head; |
| while (import) { |
| if (import->filename) { |
| fprintf(to, "%s :\n", import->filename); |
| } |
| import = import->next; |
| } |
| |
| fclose(to); |
| } |
| |
| string generate_outputFileName2(const JavaOptions& options, |
| const buffer_type& name, |
| const char* package) { |
| string result; |
| |
| // create the path to the destination folder based on the |
| // interface package name |
| result = options.output_base_folder_; |
| result += OS_PATH_SEPARATOR; |
| |
| string packageStr = package; |
| size_t len = packageStr.length(); |
| for (size_t i=0; i<len; i++) { |
| if (packageStr[i] == '.') { |
| packageStr[i] = OS_PATH_SEPARATOR; |
| } |
| } |
| |
| result += packageStr; |
| |
| // add the filename by replacing the .aidl extension to .java |
| const char* p = strchr(name.data, '.'); |
| len = p ? p-name.data : strlen(name.data); |
| |
| result += OS_PATH_SEPARATOR; |
| result.append(name.data, len); |
| result += ".java"; |
| |
| return result; |
| } |
| |
| string generate_outputFileName(const JavaOptions& options, |
| const document_item_type* items) { |
| // items has already been checked to have only one interface. |
| if (items->item_type == INTERFACE_TYPE_BINDER) { |
| interface_type* type = (interface_type*)items; |
| |
| return generate_outputFileName2(options, type->name, type->package); |
| } else if (items->item_type == USER_DATA_TYPE) { |
| user_data_type* type = (user_data_type*)items; |
| return generate_outputFileName2(options, type->name, type->package); |
| } |
| |
| // I don't think we can come here, but safer than returning NULL. |
| string result; |
| return result; |
| } |
| |
| |
| void check_outputFilePath(const string& path) { |
| size_t len = path.length(); |
| for (size_t i=0; i<len ; i++) { |
| if (path[i] == OS_PATH_SEPARATOR) { |
| string p = path.substr(0, i); |
| if (access(path.data(), F_OK) != 0) { |
| #ifdef _WIN32 |
| _mkdir(p.data()); |
| #else |
| mkdir(p.data(), S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP); |
| #endif |
| } |
| } |
| } |
| } |
| |
| |
| int parse_preprocessed_file(const string& filename, TypeNamespace* types) { |
| FILE* f = fopen(filename.c_str(), "rb"); |
| if (f == NULL) { |
| fprintf(stderr, "aidl: can't open preprocessed file: %s\n", |
| filename.c_str()); |
| return 1; |
| } |
| |
| int lineno = 1; |
| char line[1024]; |
| char type[1024]; |
| char fullname[1024]; |
| while (fgets(line, sizeof(line), f)) { |
| // skip comments and empty lines |
| if (!line[0] || strncmp(line, "//", 2) == 0) { |
| continue; |
| } |
| |
| sscanf(line, "%s %[^; \r\n\t];", type, fullname); |
| |
| char* packagename; |
| char* classname = rfind(fullname, '.'); |
| if (classname != NULL) { |
| *classname = '\0'; |
| classname++; |
| packagename = fullname; |
| } else { |
| classname = fullname; |
| packagename = NULL; |
| } |
| |
| //printf("%s:%d:...%s...%s...%s...\n", filename.c_str(), lineno, |
| // type, packagename, classname); |
| document_item_type* doc; |
| |
| if (0 == strcmp("parcelable", type)) { |
| user_data_type* parcl = new user_data_type(); |
| memset(parcl, 0, sizeof(user_data_type)); |
| parcl->document_item.item_type = USER_DATA_TYPE; |
| parcl->keyword_token.lineno = lineno; |
| parcl->keyword_token.data = cpp_strdup(type); |
| parcl->package = packagename ? cpp_strdup(packagename) : NULL; |
| parcl->name.lineno = lineno; |
| parcl->name.data = cpp_strdup(classname); |
| parcl->semicolon_token.lineno = lineno; |
| parcl->semicolon_token.data = cpp_strdup(";"); |
| parcl->parcelable = true; |
| doc = (document_item_type*)parcl; |
| } |
| else if (0 == strcmp("interface", type)) { |
| interface_type* iface = new interface_type(); |
| memset(iface, 0, sizeof(interface_type)); |
| iface->document_item.item_type = INTERFACE_TYPE_BINDER; |
| iface->interface_token.lineno = lineno; |
| iface->interface_token.data = cpp_strdup(type); |
| iface->package = packagename ? cpp_strdup(packagename) : NULL; |
| iface->name.lineno = lineno; |
| iface->name.data = cpp_strdup(classname); |
| iface->open_brace_token.lineno = lineno; |
| iface->open_brace_token.data = cpp_strdup("{"); |
| iface->close_brace_token.lineno = lineno; |
| iface->close_brace_token.data = cpp_strdup("}"); |
| doc = (document_item_type*)iface; |
| } |
| else { |
| fprintf(stderr, "%s:%d: bad type in line: %s\n", |
| filename.c_str(), lineno, line); |
| fclose(f); |
| return 1; |
| } |
| if (!gather_types(filename.c_str(), doc, types)) { |
| fprintf(stderr, "Failed to gather types for preprocessed aidl.\n"); |
| fclose(f); |
| return 1; |
| } |
| lineno++; |
| } |
| |
| if (!feof(f)) { |
| fprintf(stderr, "%s:%d: error reading file, line to long.\n", |
| filename.c_str(), lineno); |
| return 1; |
| } |
| |
| fclose(f); |
| return 0; |
| } |
| |
| int check_and_assign_method_ids(const char * filename, |
| method_type* first_item) { |
| // Check whether there are any methods with manually assigned id's and any that are not. |
| // Either all method id's must be manually assigned or all of them must not. |
| // Also, check for duplicates of user set id's and that the id's are within the proper bounds. |
| set<int> usedIds; |
| method_type* item = first_item; |
| bool hasUnassignedIds = false; |
| bool hasAssignedIds = false; |
| while (item != NULL) { |
| if (item->hasId) { |
| hasAssignedIds = true; |
| item->assigned_id = atoi(item->id.data); |
| // Ensure that the user set id is not duplicated. |
| if (usedIds.find(item->assigned_id) != usedIds.end()) { |
| // We found a duplicate id, so throw an error. |
| fprintf(stderr, |
| "%s:%d Found duplicate method id (%d) for method: %s\n", |
| filename, item->id.lineno, |
| item->assigned_id, item->name.data); |
| return 1; |
| } |
| // Ensure that the user set id is within the appropriate limits |
| if (item->assigned_id < kMinUserSetMethodId || |
| item->assigned_id > kMaxUserSetMethodId) { |
| fprintf(stderr, "%s:%d Found out of bounds id (%d) for method: %s\n", |
| filename, item->id.lineno, |
| item->assigned_id, item->name.data); |
| fprintf(stderr, " Value for id must be between %d and %d inclusive.\n", |
| kMinUserSetMethodId, kMaxUserSetMethodId); |
| return 1; |
| } |
| usedIds.insert(item->assigned_id); |
| } else { |
| hasUnassignedIds = true; |
| } |
| if (hasAssignedIds && hasUnassignedIds) { |
| fprintf(stderr, |
| "%s: You must either assign id's to all methods or to none of them.\n", |
| filename); |
| return 1; |
| } |
| item = item->next; |
| } |
| |
| // In the case that all methods have unassigned id's, set a unique id for them. |
| if (hasUnassignedIds) { |
| int newId = 0; |
| item = first_item; |
| while (item != NULL) { |
| item->assigned_id = newId++; |
| item = item->next; |
| } |
| } |
| |
| // success |
| return 0; |
| } |
| |
| int load_and_validate_aidl(const std::vector<std::string> preprocessed_files, |
| const std::vector<std::string> import_paths, |
| const std::string& input_file_name, |
| TypeNamespace* types, |
| interface_type** returned_interface, |
| import_info** returned_imports) { |
| int err = 0; |
| |
| set_import_paths(import_paths); |
| |
| // import the preprocessed file |
| for (const string& s : preprocessed_files) { |
| err |= parse_preprocessed_file(s, types); |
| } |
| if (err != 0) { |
| return err; |
| } |
| |
| // parse the input file |
| Parser p{input_file_name}; |
| if (!p.OpenFileFromDisk() || !p.RunParser()) { |
| return 1; |
| } |
| document_item_type* parsed_doc = p.GetDocument(); |
| // We could in theory declare parcelables in the same file as the interface. |
| // In practice, those parcelables would have to have the same name as |
| // the interface, since this was originally written to support Java, with its |
| // packages and names that correspond to file system structure. |
| // Since we can't have two distinct classes with the same name and package, |
| // we can't actually declare parcelables in the same file. |
| if (parsed_doc == nullptr || |
| parsed_doc->item_type != INTERFACE_TYPE_BINDER || |
| parsed_doc->next != nullptr) { |
| cerr << "aidl expects exactly one interface per input file"; |
| return 1; |
| } |
| interface_type* interface = (interface_type*)parsed_doc; |
| err |= check_filename(input_file_name.c_str(), |
| interface->package, &interface->name); |
| |
| // parse the imports of the input file |
| for (import_info* import = p.GetImports(); import; import = import->next) { |
| if (types->HasType(import->neededClass)) { |
| // There are places in the Android tree where an import doesn't resolve, |
| // but we'll pick the type up through the preprocessed types. |
| // This seems like an error, but legacy support demands we support it... |
| continue; |
| } |
| import->filename = find_import_file(import->neededClass); |
| if (!import->filename) { |
| cerr << import->from << ":" << import->statement.lineno |
| << ": couldn't find import for class " |
| << import->neededClass << endl; |
| err |= 1; |
| continue; |
| } |
| Parser p{import->filename}; |
| if (!p.OpenFileFromDisk() || !p.RunParser() || p.GetDocument() == nullptr) { |
| cerr << "error while parsing import for class " |
| << import->neededClass << endl; |
| err |= 1; |
| continue; |
| } |
| import->doc = p.GetDocument(); |
| err |= check_filenames(import->filename, import->doc); |
| } |
| if (err != 0) { |
| return err; |
| } |
| |
| // gather the types that have been declared |
| if (!gather_types(input_file_name.c_str(), parsed_doc, types)) { |
| err |= 1; |
| } |
| for (import_info* import = p.GetImports(); import; import = import->next) { |
| if (!gather_types(import->filename, import->doc, types)) { |
| err |= 1; |
| } |
| } |
| |
| // check the referenced types in parsed_doc to make sure we've imported them |
| err |= check_types(input_file_name, interface, types); |
| |
| |
| // assign method ids and validate. |
| err |= check_and_assign_method_ids(input_file_name.c_str(), |
| interface->interface_items); |
| |
| // after this, there shouldn't be any more errors because of the |
| // input. |
| if (err != 0) { |
| return err; |
| } |
| |
| *returned_interface = interface; |
| *returned_imports = p.GetImports(); |
| return 0; |
| } |
| |
| } // namespace |
| |
| int compile_aidl_to_cpp(const CppOptions& options) { |
| interface_type* interface = nullptr; |
| import_info* imports = nullptr; |
| unique_ptr<java::JavaTypeNamespace> types(new java::JavaTypeNamespace()); |
| int err = load_and_validate_aidl(std::vector<std::string>{}, |
| options.ImportPaths(), |
| options.InputFileName(), |
| types.get(), |
| &interface, |
| &imports); |
| if (err != 0) { |
| return err; |
| } |
| |
| // TODO(wiley) b/23600457 generate a dependency file if requested with -b |
| |
| return (cpp::GenerateCpp(options, interface)) ? 0 : 1; |
| } |
| |
| int compile_aidl_to_java(const JavaOptions& options) { |
| interface_type* interface = nullptr; |
| import_info* imports = nullptr; |
| unique_ptr<java::JavaTypeNamespace> types(new java::JavaTypeNamespace()); |
| int err = load_and_validate_aidl(options.preprocessed_files_, |
| options.import_paths_, |
| options.input_file_name_, |
| types.get(), |
| &interface, |
| &imports); |
| if (err != 0) { |
| return err; |
| } |
| document_item_type* parsed_doc = (document_item_type*)interface; |
| |
| string output_file_name = options.output_file_name_; |
| // if needed, generate the output file name from the base folder |
| if (output_file_name.length() == 0 && |
| options.output_base_folder_.length() > 0) { |
| output_file_name = generate_outputFileName(options, parsed_doc); |
| } |
| |
| // if we were asked to, generate a make dependency file |
| // unless it's a parcelable *and* it's supposed to fail on parcelable |
| if (options.auto_dep_file_ || options.dep_file_name_ != "") { |
| // make sure the folders of the output file all exists |
| check_outputFilePath(output_file_name); |
| generate_dep_file(options, parsed_doc, imports); |
| } |
| |
| // make sure the folders of the output file all exists |
| check_outputFilePath(output_file_name); |
| |
| err = generate_java(output_file_name, options.input_file_name_.c_str(), |
| interface, types.get()); |
| |
| return err; |
| } |
| |
| int preprocess_aidl(const JavaOptions& options) { |
| vector<string> lines; |
| |
| // read files |
| int N = options.files_to_preprocess_.size(); |
| for (int i=0; i<N; i++) { |
| Parser p{options.files_to_preprocess_[i]}; |
| if (!p.OpenFileFromDisk()) |
| return 1; |
| if (!p.RunParser()) |
| return 1; |
| document_item_type* doc = p.GetDocument(); |
| string line; |
| if (doc->item_type == USER_DATA_TYPE) { |
| user_data_type* parcelable = (user_data_type*)doc; |
| if (parcelable->parcelable) { |
| line = "parcelable "; |
| } |
| if (parcelable->package) { |
| line += parcelable->package; |
| line += '.'; |
| } |
| line += parcelable->name.data; |
| } else { |
| line = "interface "; |
| interface_type* iface = (interface_type*)doc; |
| if (iface->package) { |
| line += iface->package; |
| line += '.'; |
| } |
| line += iface->name.data; |
| } |
| line += ";\n"; |
| lines.push_back(line); |
| } |
| |
| // write preprocessed file |
| int fd = open( options.output_file_name_.c_str(), |
| O_RDWR|O_CREAT|O_TRUNC|O_BINARY, |
| #ifdef _WIN32 |
| _S_IREAD|_S_IWRITE); |
| #else |
| S_IRUSR|S_IWUSR|S_IRGRP); |
| #endif |
| if (fd == -1) { |
| fprintf(stderr, "aidl: could not open file for write: %s\n", |
| options.output_file_name_.c_str()); |
| return 1; |
| } |
| |
| N = lines.size(); |
| for (int i=0; i<N; i++) { |
| const string& s = lines[i]; |
| int len = s.length(); |
| if (len != write(fd, s.c_str(), len)) { |
| fprintf(stderr, "aidl: error writing to file %s\n", |
| options.output_file_name_.c_str()); |
| close(fd); |
| unlink(options.output_file_name_.c_str()); |
| return 1; |
| } |
| } |
| |
| close(fd); |
| return 0; |
| } |
| |
| } // namespace android |
| } // namespace aidl |