PPPOE_CODE_PADI
PPPOE_ADD_HEADER(p, PPPOE_CODE_PADI, 0, len);
case PPPOE_CODE_PADI:
NAME_VAL(PPPOE_CODE_PADI),
case PPPOE_CODE_PADI:
case PPPOE_CODE_PADI:
case PPPOE_CODE_PADI: