First working demonware emulator

README.md

@@ -17,7 +17,7 @@ Reverse engineering and analysis of Call of Duty: Black Ops 3. Very experimental
 - [x] RE Tool Detection Bypass (IDA Pro, HxD, ...)
 - [x] Disable Hardware Breakpoint Detection
 - [x] Disable Integrity Checks
-- [ ] Demonware Emulation
+- [x] Demonware Emulation
 - [ ] Disable Anti-Debugging Mechanisms
 
 ## Download

src/client/component/demonware.cpp

@@ -481,6 +481,10 @@ namespace demonware
 			utils::hook::copy_string(0x1430B93C8_g, "http://%s:%d/auth/");
 
 			utils::hook::set<uint32_t>(0x141EC4B50_g, 0xC3D08948); // Skip publisher file signature stuff
+
+			utils::hook::set<uint32_t>(0x141EC4B40_g, 0xC301B0); // FFOTD is valid
+			utils::hook::set<uint32_t>(0x141EBDF30_g, 0xC301B0); // DDLs available
+			utils::hook::set<uint32_t>(0x141E968F0_g, 0xC301B0); // QOL finished
 		}
 
 		void pre_destroy() override

src/client/game/demonware/data_types.hpp

@@ -72,6 +72,33 @@ namespace demonware
 		}
 	};
 
+	struct bdFileQueryResult final : public bdTaskResult
+	{
+		std::uint64_t user_id;
+		std::string platform;
+		std::string filename;
+		std::uint32_t errorcode;
+		std::string filedata;
+
+		void serialize(byte_buffer* data) override
+		{
+			data->write_uint64(user_id);
+			data->write_string(platform);
+			data->write_string(filename);
+			data->write_uint32(errorcode);
+			data->write_blob(filedata);
+		}
+
+		void deserialize(byte_buffer* data) override
+		{
+			data->read_uint64(&user_id);
+			data->read_string(&platform);
+			data->read_string(&filename);
+			data->read_uint32(&errorcode);
+			data->read_blob(&filedata);
+		}
+	};
+
 	class bdTimeStamp final : public bdTaskResult
 	{
 	public:

src/client/game/demonware/services/bdStorage.cpp

@@ -222,52 +222,66 @@ namespace demonware
 
 	void bdStorage::get_files(service_server* server, byte_buffer* buffer) const
 	{
-		uint32_t unk32_0;
-		uint32_t numfiles, count = 0;
-		uint64_t owner;
-		std::string game, platform;
+		std::string context;
+		buffer->read_string(&context);
 
-		buffer->read_string(&game);
-		buffer->read_uint32(&unk32_0);
-		buffer->read_uint64(&owner);
-		buffer->read_string(&platform);
-		buffer->read_uint64(&owner);
-		buffer->read_string(&platform);
-		buffer->read_uint32(&numfiles);
+		printf("demonware: ctx '%s'\n", context.data());
+
+		uint32_t count;
+		buffer->read_uint32(&count);
+
+		std::vector<std::pair<uint64_t, std::string>> user_ctxs;
+
+		for (auto i = 0u; i < count; i++)
+		{
+			uint64_t user_id;
+			std::string acc_type;
+			buffer->read_uint64(&user_id);
+			buffer->read_string(&acc_type);
+
+			printf("demonware: user 0x%llX '%s'\n", user_id, acc_type.data());
+			user_ctxs.emplace_back(user_id, acc_type);
+		}
+
+		buffer->read_uint32(&count);
+
+		std::vector<std::string> filenames;
+
+		for (auto i = 0u; i < count; i++)
+		{
+			std::string filename;
+			buffer->read_string(&filename);
+			printf("demonware: file '%s'\n", filename.data());
+
+			filenames.push_back(std::move(filename));
+		}
 
 		auto reply = server->create_reply(this->task_id());
+		uint32_t available = 0;
 
-		for (uint32_t i = 0; i < numfiles; i++)
+		for (size_t i = 0u; i < filenames.size(); i++)
 		{
-			std::string filename, data;
-			buffer->read_string(&filename);
-
-			const auto path = get_user_file_path(filename);
-			if (!utils::io::read_file(path, &data))
+			auto& name = filenames.at(i);
+			std::string filedata;
+			if (utils::io::read_file(get_user_file_path(name), &filedata))
 			{
-#ifndef NDEBUG
-				printf("[DW]: [bdStorage]: get user file: missing file: %s, %s, %s\n", game.data(), filename.data(),
-				       platform.data());
-#endif
-				continue;
+				auto* entry = new bdFileQueryResult;
+				entry->user_id = user_ctxs.at(i).first;
+				entry->platform = user_ctxs.at(i).second;
+				entry->filename = filenames.at(i);
+				entry->errorcode = 0;
+				entry->filedata = filedata;
+				reply->add(entry);
+				available++;
+				std::cout << "demonware: user file '" << name << "' dispatched.\n";
+			}
+			else
+			{
+				std::cout << "demonware: user file '" << name << "' not found.\n";
+			}
 		}
 
-			auto response = new bdFile;
-			response->owner_id = owner;
-			response->unk = 0;
-			response->platform = platform;
-			response->filename = filename;
-			response->data = data;
-
-			reply->add(response);
-			++count;
-
-#ifndef NDEBUG
-			printf("[DW]: [bdStorage]: get user file: %s, %s, %s\n", game.data(), filename.data(), platform.data());
-#endif
-		}
-
-		if (count == numfiles)
+		if (available == count)
 		{
 			reply->send();
 		}