Initial Commit

Makefile

@@ -0,0 +1,22 @@
+CFLAGS := -O2 -pipe -Wall -Wunused -Wno-deprecated
+LIBS := -lpthread
+
+SRC := $(wildcard *.cpp)
+OBJS := $(SRC:.cpp=.o)
+DEPS := $(SRC:.cpp=.d)
+
+all: hlswmaster
+
+hlswmaster: $(OBJS)
+	$(CXX) $(CFLAGS) $^ $(LIBS) -o $@
+
+%.o: %.cpp
+	$(CXX) $(CFLAGS) -c $< -o $@
+
+%.d: %.cpp
+	$(CXX) $(CFLAGS) -MM -c $< -o $@
+
+clean:
+	rm -f hlswmaster *.d *.o *.log
+
+-include $(DEPS)

config.cpp

@@ -0,0 +1,197 @@
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "logging.h"
+
+/* ------ */
+
+Config::Tupel::Tupel(const char* name_, const char* value_)
+{
+	name = strdup(name_);
+	value = strdup(value_);
+}
+
+Config::Tupel::~Tupel()
+{
+	free(name);
+	free(value);
+}
+
+/* ------ */
+
+Config::Section::Section(const char* name_)
+{
+	name = strdup(name_);
+}
+
+Config::Section::~Section()
+{
+	while (!tupelList.isEmpty())
+		delete tupelList.get();
+
+	free(name);
+}
+
+bool Config::Section::addTupel(const char* name, const char* value)
+{
+	if (!name || !value)
+		return false;
+
+	Tupel* t = new Tupel(name, value);
+	tupelList.addTail(t);
+	
+	return true;
+}
+
+void Config::Section::show() const
+{
+	Iterator<Tupel>* it = tupelList.createIterator();
+	LogSystem::log(LOG_DEBUG, "[%s]", name);
+	
+	while (it->hasNext()) {
+		Tupel* t = it->next();
+		LogSystem::log(LOG_DEBUG, " %s = %s", t->name, t->value);
+	}
+	
+	delete it;
+}
+
+char* Config::Section::getTupelValue(const char* name) const
+{
+	char* retval = 0;
+	Iterator<Tupel>* it = this->tupelList.createIterator();
+	while (it->hasNext()) {
+		Tupel* t = it->next();
+		if (!strcmp(t->name, name)) {
+			retval = t->value;
+			break;
+		}
+	}
+	
+	delete it;
+	return retval;
+}
+
+/* ------ */
+
+Config::~Config()
+{
+	while (!sectionList.isEmpty())
+		delete sectionList.get();
+}
+
+Config::Section* Config::addSection(const char* name)
+{
+	Section* s = new Section(name);
+	sectionList.addTail(s);
+	return s;
+}
+
+bool Config::parseFile(const char* name)
+{
+	Config::Section* section = 0;
+	FILE *fz;
+	int i = 0;
+	char *row, *tok, *tok2;
+	bool ret = true;
+	
+	if (!(row = (char*)malloc(1024))) {
+		LogSystem::log(LOG_CRIT, "config_parse(): malloc()");
+		return false;
+	}
+	
+	if (!(fz = fopen(name, "r"))) {
+		LogSystem::log(LOG_ERROR, "config_parse(): can not open %s", name);
+		return false;
+	}
+	
+	while (fgets(row, 1024, fz)) {
+		i++;
+
+		/* kommentar oder leere zeile */
+		if (row[0] == '#' || row[0] <= ' ') {
+			continue;
+
+		/* neue section */
+		} else if (row[0] == '[') {
+			tok = strtok(row +1, " ]\n");
+			section = addSection(tok);
+			if (!section) {
+				LogSystem::log(LOG_WARNING, "config_parse(): invalid section in row %d", i);
+				ret = false;
+				break;
+			}
+			continue;
+
+		/* option, aber es gab noch keine section */
+		} else if (!section) {
+			LogSystem::log(LOG_WARNING, "config_parse(): missing section in row %d", i);
+			ret = false;
+			break;
+		}
+		
+		/* option */
+		if ((tok = strtok(row, " \n")) && (tok2 = strtok(NULL, " \n"))) {
+			if (!section->addTupel(tok, tok2))
+				LogSystem::log(LOG_WARNING, "config_parse(): invalid row %d", i);
+		}
+	}
+	
+	fclose(fz);
+	free(row);
+	
+	return ret;
+}
+
+void Config::show() const
+{
+	LogSystem::log(LOG_DEBUG, "Config Dump:");
+	Iterator<Section>* it = sectionList.createIterator();
+	while (it->hasNext())
+		it->next()->show();
+
+	delete it;
+}
+
+char* Config::getParameter(const char* section, const char* option) const
+{
+	char* retval = 0;
+	
+	Iterator<Section>* it = sectionList.createIterator();
+	while (it->hasNext()) {
+		Section* s = it->next();
+		if (!strcmp(s->name, section)) {
+			retval = s->getTupelValue(option);
+			break;
+		}
+	}
+
+	delete it;
+	return retval;
+}
+
+char* Config::getString(const char* section, const char* option, char* def) const
+{
+	char* retval = getParameter(section, option);
+	if (!retval) {
+		LogSystem::log(LOG_NOTICE,
+			"Config: [%s:%s] not found => using '%s'",
+			section, option, def);
+		return def;
+	}
+	return retval;
+}
+
+int Config::getInteger(const char* section, const char* option, int def) const
+{
+	char* retval = getParameter(section, option);
+	if (!retval) {
+		LogSystem::log(LOG_NOTICE,
+			"Config: [%s:%s] not found => using '%d'",
+			section, option, def);
+		return def;
+	}
+	return atoi(retval);
+}

config.h

@@ -0,0 +1,47 @@
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
+
+#include "list.h"
+
+class Config {
+public:
+	~Config();
+
+	bool parseFile(const char* name);
+	void show() const;
+
+	char* getParameter(const char* section, const char* name) const;
+	char* getString(const char* section, const char* name, char* def) const;
+	int getInteger(const char* section, const char* name, int def) const;
+
+private:
+	class Tupel {
+	public:	
+		Tupel(const char* name, const char* value);
+		~Tupel();
+
+		char* name;
+		char* value;
+	};
+	
+	class Section {
+	public:
+		Section(const char* name);
+		~Section();
+
+		bool addTupel(const char* name, const char* option);
+		char* getTupelValue(const char* name) const;
+		void show() const;
+		
+		char* name;
+
+	private:
+		List<Tupel> tupelList;
+	};
+
+	Section* addSection(const char* name);
+
+	List<Section> sectionList;
+};
+
+#endif // _CONFIG_H_

gamelist.h

@@ -0,0 +1,31 @@
+#ifndef _GAMELIST_H_
+#define _GAMELIST_H_
+
+class GameEntry {
+public:
+	GameEntry();
+	~GameEntry();
+
+protected:
+	GameEntry(const GameEntry& ge);
+	GameEntry& operator=(const GameEntry& ge);
+
+private:
+	struct in_addr addr;
+	int port1;
+	int port2;
+	int gameid;
+};
+
+
+class GameList {
+public:
+	virtual ~GameList() {};
+
+	virtual void cleanup() {};
+
+protected:
+	GameList() {}
+};
+
+#endif // _GAMELIST_H_

gameparser.cpp

@@ -0,0 +1,42 @@
+#include "logging.h"
+#include "netpkt.h"
+#include "gameparser.h"
+
+#define DEFAULT_TIMEOUT 180
+
+GameParser::GameParser(Config& conf, RecvQueue& rxQueue, ModuleList& modList)
+: rxQueue(rxQueue), modList(modList)
+{
+	int interval = conf.getInteger("global", "game_timeout", DEFAULT_TIMEOUT);
+	TimerService::registerTimer(new Timer(new CleanupEvent(this), interval));
+}
+
+GameParser::~GameParser()
+{
+}
+
+int GameParser::execute(void* arg)
+{
+	while (1) {
+		NetPkt* pkt = rxQueue.getPkt();
+		int ret = modList.parse(pkt, this);
+		switch (ret) {
+		case PKT_REJECT:
+			char buf[64];
+			pkt->show(buf, sizeof(buf));
+			LogSystem::log(LOG_DEBUG, "unknown Packet: %s", buf);
+
+		case PKT_ACCEPT:
+			delete pkt;
+			
+		case PKT_ACCEPT_FREED:
+			break;
+		}			
+	}
+	return 0;
+}
+
+void GameParser::cleanup()
+{
+	LogSystem::log(LOG_DEBUG, "GameParser::cleanup()");
+}

gameparser.h

@@ -0,0 +1,39 @@
+#ifndef _GAMEPARSER_H_
+#define _GAMEPARSER_H_
+
+#include "gamelist.h"
+#include "thread.h"
+#include "config.h"
+#include "recvqueue.h"
+#include "modulelist.h"
+#include "timerservice.h"
+
+class GameParser : public GameList, public Thread {
+public:
+	GameParser(Config& conf, RecvQueue& rxQueue, ModuleList& modlist);
+	~GameParser();
+	
+	int execute(void* arg);
+	
+	void cleanup();
+
+protected:
+	GameParser(const GameParser& rp);
+	GameParser& operator=(const GameParser& rp);
+
+private:
+	class CleanupEvent : public Command {
+	public:
+		CleanupEvent(GameList* sl) : sl(sl) {}
+		~CleanupEvent() {}
+		void execute() { sl->cleanup(); }
+	
+	private:
+		GameList* sl;	
+	};	
+
+	RecvQueue& rxQueue;
+	ModuleList& modList;
+};
+
+#endif // _GAMEPARSER_H_

gamescanner.cpp

@@ -0,0 +1,50 @@
+#include "logging.h"
+#include "timerservice.h"
+
+#include "gamescanner.h"
+
+#define DEFAULT_INTERVAL 30
+
+GameScanner::GameScanner(Config& conf, ModuleList& modList)
+: modList(modList)
+{
+	msock = new MultiSock(conf);
+	pktCount = new Semaphore(0);
+
+	int interval = conf.getInteger("global", "scan_interval", DEFAULT_INTERVAL);
+	TimerService::registerTimer(new Timer(new ScanEvent(this), interval));
+}
+
+GameScanner::~GameScanner()
+{
+	while (!pktList.isEmpty())
+		delete pktList.get();
+
+	delete pktCount;
+	delete msock;
+}
+
+int GameScanner::execute(void* arg)
+{
+	while (1) {
+		int fd = msock->getRecvSocket();
+		NetPkt* pkt = NetPkt::createFromSocket(fd);
+
+		if (pkt != NULL) {
+			pktList.addTail(pkt);
+			pktCount->post();
+		}
+	}
+	return 0;
+}
+
+void GameScanner::scan()
+{
+	modList.scan(msock);
+}
+
+NetPkt* GameScanner::getPkt()
+{
+	pktCount->wait();
+	return pktList.get();
+}

gamescanner.h

@@ -0,0 +1,49 @@
+#ifndef _GAMESCANNER_H_
+#define _GAMESCANNER_H_
+
+#include "recvqueue.h"
+#include "thread.h"
+#include "config.h"
+#include "modulelist.h"
+
+#include "multisock.h"
+#include "semaphore.h"
+#include "list.h"
+#include "netpkt.h"
+
+#include "timerservice.h"
+
+class GameScanner : public RecvQueue, public Thread {
+public:
+	GameScanner(Config& conf, ModuleList& modList);
+	~GameScanner();
+	
+	void scan();
+	
+	NetPkt* getPkt();
+	int execute(void* arg);
+
+protected:
+	GameScanner(const GameScanner& hs);
+	GameScanner& operator=(const GameScanner& hs);
+
+private:
+	class ScanEvent : public Command {
+	public:
+		ScanEvent(GameScanner* gs) : gs(gs) {}
+		~ScanEvent() {}
+		void execute() { gs->scan(); }
+	
+	private:
+		GameScanner* gs;	
+	};	
+
+	ModuleList& modList;
+	MultiSock* msock;
+	Semaphore* pktCount;
+	List<NetPkt> pktList;
+};
+
+
+	
+#endif // _SCANNER_H_

hlswmaster.conf

@@ -0,0 +1,16 @@
+[global]
+# broadcast scan source port (udp)
+scan_port 7130
+
+# broadcast scan every X seconds
+scan_interval 10
+
+# server timeout after X seconds
+game_timeout 30
+
+# master answers with this source IP
+master_ip 0.0.0.0
+
+# logging
+logfile hlswmaster.log
+logprio 7

hlswmaster.cpp

@@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "logging.h"
+#include "config.h"
+#include "gamescanner.h"
+#include "gameparser.h"
+#include "hlswserver.h"
+#include "timerservice.h"
+#include "modulelist.h"
+
+#include "mod_example.h"
+
+#define DEFAULT_CONFIG "hlswmaster.conf"
+#define DEFAULT_LOGFILE "hlswmaster.log"
+
+static struct option opts[] = {
+	{"config",	1, 0, 'c'},
+	{"debug",	0, 0, 'd'},
+	{"help",	0, 0, 'h'},
+	{0, 0, 0, 0}
+};
+
+int main(int argc, char *argv[])
+{
+	LogSystem::init(LOG_DEBUG, new StdErrLog());
+
+	int arg = 0, code = 0, debug = 0;
+	char *configfile = DEFAULT_CONFIG;
+	while (code != -1) {
+		code = getopt_long(argc, argv, "c:dh", opts, &arg);
+
+		switch (code) {
+		case 'c':	/* config */
+				configfile = optarg;
+				break;
+
+		case 'd':	/* debug */
+				debug = 1;
+				break;
+
+		case 'h':	/* help */
+				printf("Usage: hlsw-master [options]\n"
+					"Options: \n"
+					"  --config       -c  configfile  use this configfile\n"
+					"  --debug        -d              do not fork and log to stderr\n"
+					"  --help         -h              this help\n"
+					"\n");
+				exit(0);
+				break;
+
+		case '?':	/* error */
+				exit(-1);
+				break;
+
+		default:	/* unknown / all options parsed */
+				break;
+		}
+	}
+	
+	Config conf;
+	conf.parseFile(configfile);
+
+//	char* logfile = conf.getString("global", "logfile", DEFAULT_LOGFILE);
+//	int logprio = conf.getInteger("global", "logprio", LOG_NOTICE);
+//	LogSystem::init(logprio, new FileLog(logfile));
+	
+	LogSystem::log(LOG_EVERYTIME, "hlswmaster-ng startup");
+//	conf.show();
+
+	ModuleList modList;
+
+	GameScanner scanner(conf, modList);
+	GameParser parser(conf, scanner, modList);
+	HlswServer server(conf, parser);
+
+	modList.reg(new ModExample(conf));
+	
+	server.start();
+	parser.start();
+	scanner.start();
+
+	while (1) {
+		TimerService::checkTimers();
+		usleep(500000);
+
+		if (!scanner.isRunning()) {
+			LogSystem::log(LOG_CRIT, "Scanner aborted!");
+			break;
+		}
+		
+		if (!parser.isRunning()) {
+			LogSystem::log(LOG_CRIT, "RecvParser aborted!");
+			break;
+		}
+		
+		if (!server.isRunning()) {
+			LogSystem::log(LOG_CRIT, "HlswServer aborted!");
+			break;
+		}
+	}
+
+	return -1;
+}

hlswserver.cpp

@@ -0,0 +1,78 @@
+#include <unistd.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+
+#include "config.h"
+#include "logging.h"
+#include "hlswserver.h"
+
+#define HLSW_HEADER "\xFF\xFF\xFF\xFFHLSWLANSEARCH\x00"
+#define HLSW_HEADER_LEN 0x12
+#define HLSW_MASTER_PORT 7140
+
+HlswServer::HlswServer(Config& conf, GameList& slist)
+{
+	struct sockaddr_in dst;
+	char *ip;
+
+	if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
+		LogSystem::log(LOG_CRIT, "HlswServer(): socket()");
+		return;
+	}
+
+	ip = conf.getString("global", "master_ip", "0.0.0.0");
+	LogSystem::log(LOG_NOTICE, "HlswServer listen on %s:%d", ip, HLSW_MASTER_PORT);
+
+	dst.sin_family = AF_INET;
+	dst.sin_port = htons(HLSW_MASTER_PORT);
+	inet_aton(ip, &dst.sin_addr);
+
+	if (bind(sock, (struct sockaddr *)&dst, sizeof(dst)) < 0) {
+		LogSystem::log(LOG_WARNING, "HlswServer(): bind()");
+		return;
+	}
+
+	out = new HlswPacket();
+}
+
+HlswServer::~HlswServer()
+{
+	close(sock);
+}
+
+int HlswServer::execute(void* arg)
+{
+	struct sockaddr_in src;
+	unsigned char buf[32];
+	socklen_t len;
+	int ret;
+
+	while (1) {
+		/* auf clientanfrage warten */
+		len = sizeof(src);
+		ret = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *)&src, &len);
+		if (ret != HLSW_HEADER_LEN) {
+			LogSystem::log(LOG_WARNING, "HlswServer: invalid packet");
+			continue;
+		}
+
+		/* testen ob es sich um ein HLSW anforderung handelt */
+		if (memcmp(buf, HLSW_HEADER, HLSW_HEADER_LEN)) {
+			LogSystem::log(LOG_WARNING, "HlswServer: not a hlsw packet");
+			continue;
+		}
+
+		if (out != NULL && out->count > 0) {
+			HlswPacket* pkt;
+			for (pkt = out; pkt != NULL; pkt = pkt->next) {
+				sendto(sock, pkt->data, pkt->getSize(), 0,
+					(struct sockaddr *)&src, sizeof(src));
+			}
+		}
+	}
+
+	return 0;
+}

hlswserver.h

@@ -0,0 +1,46 @@
+#ifndef _HLSWSERVER_H_
+#define _HLSWSERVER_H_
+
+#include <string.h>
+
+#include "thread.h"
+#include "config.h"
+#include "gamelist.h"
+
+
+class HlswServer : public Thread {
+public:
+	HlswServer(Config& conf, GameList& slist);
+	~HlswServer();
+
+	int execute(void* arg);
+
+protected:
+	HlswServer(const HlswServer& hs);
+	HlswServer& operator=(const HlswServer& hs);
+
+private:
+	class HlswPacket {
+	public:
+		HlswPacket() : next(0), count(0)
+		{
+			memset(data, 0, sizeof(data));
+		}
+
+		int getSize()
+		{
+			return 12 + count * 10;
+		}
+
+		void addGame(void* ptr) {}
+
+		HlswPacket* next;
+		int count;
+		char data[1412];
+	};
+
+	HlswPacket* out;
+	int sock;
+};
+
+#endif // _HLSWSERVER_H_

list.h

@@ -0,0 +1,167 @@
+#ifndef _LIST_H_
+#define _LIST_H_
+
+#include "mutex.h"
+
+template <class T>
+class Iterator {
+public:
+	virtual ~Iterator() {}
+	virtual bool hasNext() const =0;
+	virtual T* next() =0;
+
+protected:
+	Iterator<T>() {}
+	Iterator<T>(const Iterator<T>& it);
+	Iterator<T>& operator=(const Iterator<T>& it);
+};
+
+template <class T>
+class List {
+public:
+	List() {}
+
+	~List()
+	{
+		AutoMutex am(mutex);
+		while(!head.isEmpty())
+			head.getNext()->del();
+	}
+
+	void add(const T* part)
+	{
+		ListEntry<T>* entry = new ListEntry<T>(part);
+
+		AutoMutex am(mutex);
+		entry->add(&head, head.getNext());
+	}
+
+	void addTail(const T* part)
+	{
+		ListEntry<T>* entry = new ListEntry<T>(part);
+
+		AutoMutex am(mutex);
+		entry->add(head.getPrev(), &head);
+	}
+
+	T* get()
+	{
+		AutoMutex am(mutex);
+		ListEntry<T>* entry = head.getNext();
+		T* retval = (T*)entry->getPart();
+
+		if (!head.isEmpty()) {
+			entry->del();
+			delete entry;
+		}
+		return retval;
+	}
+
+	T* getTail()
+	{
+		AutoMutex am(mutex);
+		ListEntry<T>* entry = head.getPrev();
+		T* retval = (T*)entry->getPart();
+
+		if (!head.isEmpty()) {
+			entry->del();
+			delete entry;
+		}
+		return retval;
+	}
+
+	bool isEmpty() const
+	{
+		AutoMutex am((Mutex&)mutex);
+		return head.isEmpty();
+	}
+
+	Iterator<T>* createIterator() const
+	{
+		return new ListIterator<T>(this);
+	}
+
+protected:
+	List(const List& l);
+	List& operator=(const List& l);
+
+private:
+	template <class TT>
+	class ListEntry {
+	public:
+		ListEntry(const TT* part = 0)
+		: prev(this), next(this), part(part)
+		{
+		}
+
+		void add(ListEntry<TT>* prev_, ListEntry<TT>* next_)
+		{
+			this->next = next_;
+			this->prev = prev_;
+			next_->prev = this;
+			prev_->next = this;
+		}
+
+		void del()
+		{
+			next->prev = prev;
+			prev->next = next;
+			next = prev = this;
+		}
+
+		bool isEmpty() const
+		{
+			return (this->prev == this) && (this->next == this);
+		}
+
+		const TT* getPart() const { return part; }
+		ListEntry<TT>* getPrev() const { return prev; }
+		ListEntry<TT>* getNext() const { return next; }
+
+	private:
+		ListEntry<TT>* prev;
+		ListEntry<TT>* next;
+		const TT* part;
+	};
+
+	ListEntry<T> head;
+	Mutex mutex;
+
+	template <class TT>
+	class ListIterator : public Iterator<TT> {
+	public:
+		ListIterator(const List<TT>* list)
+		: list(list)
+		{
+		//	((ListBase*)list)->mutex.lock();
+			pos = &list->head;
+		}
+
+		~ListIterator()
+		{
+		//	((ListBase*)list)->mutex.unlock();
+		}
+
+		bool hasNext() const
+		{
+			return (pos->getNext() != &list->head);
+		}
+
+		TT* next()
+		{
+			pos = pos->getNext();
+			return (TT*)pos->getPart();
+		}
+
+	protected:
+		ListIterator(const ListIterator& lit);
+		ListIterator& operator=(const ListIterator& lit);
+
+	private:
+		const List<TT>* list;
+		const ListEntry<TT>* pos;
+	};
+};
+
+
+#endif //_LIST_H_

logging.cpp

@@ -0,0 +1,99 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+
+#include "logging.h"
+
+#define BUFLEN 1024
+
+
+LogSystem::LogSystem() : output(0), priority(0)
+{
+	buffer = new char[BUFLEN];
+}
+
+LogSystem::~LogSystem()
+{
+	delete buffer;
+
+	if (output)
+		delete output;
+}
+
+LogSystem* LogSystem::getInstance()
+{
+	static LogSystem ls;
+	return &ls;
+}
+
+void LogSystem::init(int prio, LogOutput* out)
+{
+	LogSystem* ls = getInstance();
+
+	if (ls->output)
+		delete ls->output;
+
+	ls->output = out;
+	ls->priority = prio;
+}
+
+void LogSystem::log(int prio, const char* fmt, ...)
+{
+	LogSystem* ls = getInstance();
+
+	if (prio > ls->priority || !ls->output)
+		return;
+
+	va_list az;
+	int len;
+
+	va_start(az, fmt);
+	len = vsnprintf(ls->buffer, BUFLEN, fmt, az);
+	va_end(az);
+
+	if (errno) {
+		strncpy(ls->buffer + len, ": ", BUFLEN - len);
+		len += 2;
+		strncpy(ls->buffer + len, strerror(errno), BUFLEN - len);
+
+		errno = 0;
+	}
+
+	ls->output->write(ls->buffer);
+}
+
+/* ------- */
+
+void StdErrLog::write(const char* buf)
+{
+	fprintf(stderr, "%s\n", buf);
+}
+
+/* ------- */
+
+FileLog::FileLog(const char* filename)
+{
+	if (!(logfile = fopen(filename, "a" )))
+		LogSystem::log(LOG_CRIT, "Can not open logfile '%s'", filename);
+
+	fprintf(logfile, "-----------------\n");
+}
+
+FileLog::~FileLog()
+{
+	fclose(logfile);
+}
+
+void FileLog::write(const char* buf)
+{
+	time_t  tzgr;
+	char    tbuf[64];
+	time(&tzgr);
+	strftime(tbuf, sizeof(tbuf), "%b %d %H:%M:%S :", localtime(&tzgr));
+
+	fprintf(logfile, "%s %s\n", tbuf, buf);
+	fflush(logfile);
+}

logging.h

@@ -0,0 +1,63 @@
+#ifndef _LOGGING_H_
+#define _LOGGING_H_
+
+#include <stdio.h>
+
+// really noisy debugging (pkt-dumps)
+#define LOG_DEBUG 5
+
+// normal "debug" (config, recv. packets)
+#define LOG_INFO  4
+
+// interesting stuff
+#define LOG_NOTICE 3
+
+// something is not right, but programm is still working (config errors)
+#define LOG_WARN 2
+
+// something is *really* bad, but we try to keep up (mem-allocs)
+#define LOG_ERROR 1
+
+// we must bailout *now*
+#define LOG_CRIT 0
+
+#define LOG_EVERYTIME 0
+
+class LogOutput {
+public:
+	virtual ~LogOutput() {};
+	virtual void write(const char* buf) {};
+};
+
+class LogSystem {
+public:
+	static void init(int prio, LogOutput* lo);
+	static void log(int prio, const char* fmt, ...);
+
+private:
+	LogSystem();
+	~LogSystem();
+	static LogSystem* getInstance();
+
+	LogOutput *output;
+	int priority;
+	char* buffer;
+};
+
+class StdErrLog : public LogOutput {
+public:
+	void write(const char* buf);
+};
+
+class FileLog : public LogOutput {
+public:
+	FileLog(const char* filename);
+	~FileLog();
+
+	void write(const char* buf);
+
+private:
+	FILE* logfile;
+};
+
+#endif // _LOGGING_H_

mod_example.h

@@ -0,0 +1,35 @@
+#ifndef _MODEXAMPLE_H_
+#define _MODEXAMPLE_H_
+
+#include "modulelist.h"
+#include "logging.h"
+
+class ModExample : public Module {
+public:
+	ModExample(Config& conf)
+	{
+	}
+
+	~ModExample()
+	{
+	}
+
+	void scan(MultiSock* msock)
+	{
+		LogSystem::log(LOG_DEBUG, "ModExample::scan()");
+	}
+
+	int parse(NetPkt* pkt, GameList* slist)
+	{
+		LogSystem::log(LOG_DEBUG, "ModExample::parse()");
+		return 0;
+	}
+
+	char* getName() {
+		return "Example Module";
+	}
+
+protected:
+};
+
+#endif // _MODEXAMPLE_H_

modulelist.cpp

@@ -0,0 +1,42 @@
+#include "logging.h"
+#include "modulelist.h"
+
+ModuleList::ModuleList()
+{
+}
+
+ModuleList::~ModuleList()
+{
+	while (!mlist.isEmpty())
+		delete mlist.get();
+}
+
+void ModuleList::reg(Module* mod)
+{
+	LogSystem::log(LOG_INFO, "Loading Module '%s'", mod->getName());
+	mlist.addTail(mod);
+}
+
+void ModuleList::scan(MultiSock* msock)
+{
+	Iterator<Module> *it = mlist.createIterator();
+	while (it->hasNext())
+		it->next()->scan(msock);
+
+	delete it;
+}
+
+int ModuleList::parse(NetPkt* pkt, GameList* slist)
+{
+	int retval = PKT_REJECT;
+
+	Iterator<Module> *it = mlist.createIterator();
+	while (it->hasNext()) {
+		retval = it->next()->parse(pkt, slist);
+		if (retval != PKT_REJECT)
+			break;
+	}
+
+	delete it;
+	return retval;
+}

modulelist.h

@@ -0,0 +1,40 @@
+#ifndef _MODULELIST_H_
+#define _MODULELIST_H_
+
+#include "multisock.h"
+#include "netpkt.h"
+#include "gamelist.h"
+#include "config.h"
+
+class Module {
+public:
+	virtual ~Module() {};
+
+	virtual void scan(MultiSock* msock) =0;
+	virtual int parse(NetPkt* pkt, GameList* slist) =0;
+	virtual char* getName() =0;
+
+protected:
+	Module() {};
+};
+
+
+class ModuleList {
+public:
+	ModuleList();
+	~ModuleList();
+
+	void reg(Module* mod);
+
+	void scan(MultiSock* msock);
+	int parse(NetPkt* pkt, GameList* slist);
+
+protected:
+	ModuleList(const ModuleList& ml);
+	ModuleList& operator=(const ModuleList& ml);
+
+private:
+	List<Module> mlist;
+};
+
+#endif // _MODULELIST_H_

multisock.cpp

@@ -0,0 +1,187 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "logging.h"
+#include "multisock.h"
+
+#define DEFAULT_PORT 7130
+
+#define DEVFILE "/proc/net/dev"
+#define BUFSIZE 256
+
+
+MultiSock::Socket::Socket()
+{
+	if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
+		LogSystem::log(LOG_CRIT, "Socket: socket()");
+}
+
+MultiSock::Socket::~Socket()
+{
+	close(fd);
+}
+
+bool MultiSock::Socket::bindToDevice(const char* name)
+{
+	strncpy(devname, name, sizeof(devname));
+	
+	int ret = setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, devname, sizeof(devname));
+
+	if (ret < 0) {
+		LogSystem::log(LOG_WARNING, "Socket: setsockopt(SO_BINDTODEVICE) %s", devname);
+		return false;
+	}
+
+	return true;
+}
+
+bool MultiSock::Socket::bindToPort(int port)
+{
+	struct ifreq ifr;
+	
+	strncpy(ifr.ifr_name, devname, sizeof(ifr.ifr_name));
+	
+	if (ioctl(fd, SIOCGIFADDR, &ifr) != 0) {
+		LogSystem::log(LOG_WARNING, "Socket: ioctl(SIOCGIFADDR) %s", devname);
+		return false;
+	}
+	
+	memcpy(&addr, &ifr.ifr_addr, sizeof(addr));
+	addr.sin_port = htons(port);
+
+	if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
+		LogSystem::log(LOG_WARNING, "Socket: bind() %s", devname);
+		return false;
+	}
+
+	int bcast = 1;
+	if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &bcast, sizeof(bcast))) {
+		LogSystem::log(LOG_WARNING, "Socket: setsockopt(SO_BROADCAST) %s", devname);
+		return false;
+	}
+
+	return true;
+}
+
+
+int MultiSock::Socket::show(char* buf, int size)
+{
+	return snprintf(buf, size, "%s (%s:%d) ", devname,
+		inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
+}
+
+MultiSock::Socket* MultiSock::Socket::createSocket(const char* name, int port)
+{
+	Socket* sock = new Socket();
+	
+	if (sock->fd < 0) {
+		delete sock;
+		return NULL;
+	}
+	
+	struct ifreq ifr;
+	strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+
+	if (ioctl(sock->fd, SIOCGIFFLAGS, &ifr) != 0) {
+		LogSystem::log(LOG_WARNING, "Socket: ioctl(SIOCGIFFLAGS) %s", name);
+		delete sock;
+		return NULL;
+	}
+
+	if (!(ifr.ifr_flags & IFF_UP) || (ifr.ifr_flags & (IFF_LOOPBACK | IFF_POINTOPOINT))) {
+		delete sock;
+		return NULL;
+	}
+
+	sock->bindToDevice(name);
+	
+	if (!sock->bindToPort(port)) {
+		delete sock;
+		return NULL;
+	}
+	
+	return sock;
+}
+
+
+MultiSock::MultiSock(Config& conf)
+{
+	char* buf = (char*)malloc(BUFSIZE);
+	if (buf == NULL) {
+		LogSystem::log(LOG_CRIT, "MultiSock(): out of memory");
+		return;
+	}
+
+	FILE* fp = fopen(DEVFILE, "r");
+	if (fp == NULL) {
+		LogSystem::log(LOG_CRIT, "MultiSock(): can not open " DEVFILE);
+		free(buf);
+		return;
+	}
+	
+	fgets(buf, BUFSIZE, fp);
+	fgets(buf, BUFSIZE, fp);
+	
+	int port = conf.getInteger("global", "scan_port", DEFAULT_PORT);
+	FD_ZERO(&fdsel);
+
+	while (fgets(buf, BUFSIZE, fp) != NULL) {
+		char* tok = strtok(buf, " :");
+
+		// TODO: check against config list
+		
+		Socket* sock = Socket::createSocket(tok, port);
+		if (sock) {
+			FD_SET(sock->getFD(), &fdsel);
+			
+			sock->show(buf, BUFSIZE);
+			LogSystem::log(LOG_NOTICE, "adding Interface %s", buf);
+			
+			ifaceList.add(sock);
+		}
+	}
+
+	fclose(fp);
+	free(buf);
+}
+
+MultiSock::~MultiSock()
+{
+	while (!ifaceList.isEmpty())
+		delete ifaceList.get();
+}
+
+
+int MultiSock::getRecvSocket()
+{
+	fd_set fdcpy;
+
+	while (1) {
+		memcpy(&fdcpy, &fdsel, sizeof(fdcpy));
+
+		select(FD_SETSIZE, &fdcpy, NULL, NULL, NULL);
+		
+		Iterator<Socket>* it = ifaceList.createIterator();
+		while (it->hasNext()) {
+			Socket* sock = it->next();
+			if (FD_ISSET(sock->getFD(), &fdcpy)) {
+				delete it;
+				return sock->getFD();
+			}
+		}
+		delete it;
+
+		LogSystem::log(LOG_ERROR, "getRecvSocket(): select()");
+	}
+
+	return -1;
+}
+

multisock.h

@@ -0,0 +1,53 @@
+#ifndef _MULTISOCK_H_
+#define _MULTISOCK_H_
+
+#include <net/if.h>
+#include <netinet/in.h>
+
+#include "list.h"
+#include "config.h"
+
+class MultiSock {
+public:
+	MultiSock(Config& conf);
+	~MultiSock();
+
+	int send(struct in_addr *dstip, int dport, char* data, int size);
+	int getRecvSocket();
+
+protected:
+	MultiSock(const MultiSock& x);
+	MultiSock& operator=(const MultiSock& x);
+
+private:
+	class Socket {
+	public:
+		static Socket* createSocket(const char* name, int port);
+		int show(char* buf, int size);
+
+		int getFD() { return fd; }
+
+		~Socket();
+
+	protected:
+		Socket(const Socket& s);
+		Socket& operator=(const Socket& s);
+
+	private:
+		Socket();
+
+		bool bindToDevice(const char* name);
+		bool bindToPort(int port);
+		
+		int fd;
+		char devname[IFNAMSIZ];
+		struct sockaddr_in addr;
+	};
+
+	void addIface(const char* name, int port);
+
+	List<Socket> ifaceList;
+	fd_set fdsel;
+};
+
+#endif // _MULTISOCK_H_

mutex.h

@@ -0,0 +1,35 @@
+#ifndef _MUTEX_H_
+#define _MUTEX_H_
+
+#include <pthread.h>
+
+class Mutex {
+public:
+	Mutex()		{ pthread_mutex_init(&m, 0); }
+	~Mutex()	{ pthread_mutex_destroy(&m); }
+	void lock()	{ pthread_mutex_lock(&m); }
+	void unlock()	{ pthread_mutex_unlock(&m); }
+
+protected:
+	Mutex(const Mutex& m);
+	Mutex& operator=(const Mutex& m);
+
+private:
+	pthread_mutex_t m;
+};
+
+
+class AutoMutex {
+public: