void dumpPacket(FILE *fp, PPPoEPacket *packet, char const *dir);
void dumpHex(FILE *fp, unsigned char const *buf, int len);
int parsePacket(PPPoEPacket *packet, ParseFunc *func, void *extra);
void dumpPacket(FILE *fp, PPPoEPacket *packet, char const *dir);
void dumpHex(FILE *fp, unsigned char const *buf, int len);
int parsePacket(PPPoEPacket *packet, ParseFunc *func, void *extra);