src/add-ons/kernel/network/ppp/pppoe/DiscoveryPacket.h

   1 /*
   2  * Copyright 2003-2004, Waldemar Kornewald <wkornew@gmx.net>
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #ifndef DISCOVERY_PACKET__H
   7 #define DISCOVERY_PACKET__H
   8
   9 #include "PPPoE.h"
  10
  11 #include <TemplateList.h>
  12
  13 #define ETHER_HDR_LEN 14
  14
  15 enum PPPoE_TAG_TYPE {
  16         END_OF_LIST = 0x0000,
  17         SERVICE_NAME = 0x0101,
  18         AC_NAME = 0x0102,
  19         HOST_UNIQ = 0x0103,
  20         AC_COOKIE = 0x0104,
  21         VENDOR_SPECIFIC = 0x0105,
  22         RELAY_SESSION_ID = 0x0110,
  23         SERVICE_NAME_ERROR = 0x0201,
  24         AC_SYSTEM_ERROR = 0x0202,
  25         GENERIC_ERROR = 0x0203
  26 };
  27
  28 enum PPPoE_CODE {
  29         PADI = 0x09,
  30         PADO = 0x07,
  31         PADR = 0x19,
  32         PADS = 0x65,
  33         PADT = 0xA7
  34 };
  35
  36
  37 typedef struct pppoe_tag {
  38         uint16 type;
  39         uint16 length;
  40         uint8 data[0];
  41 } pppoe_tag;
  42
  43
  44 class DiscoveryPacket {
  45         public:
  46                 DiscoveryPacket(uint8 code, uint16 sessionID = 0x0000);
  47                 DiscoveryPacket(net_buffer *packet, uint32 start = 0);
  48                 ~DiscoveryPacket();
  49
  50                 status_t InitCheck() const
  51                         { return fInitStatus; }
  52
  53                 void SetCode(uint8 code)
  54                         { fCode = code; }
  55                 uint8 Code() const
  56                         { return fCode; }
  57
  58                 void SetSessionID(uint16 sessionID)
  59                         { fSessionID = sessionID; }
  60                 uint16 SessionID() const
  61                         { return fSessionID; }
  62
  63                 bool AddTag(uint16 type, const void *data, uint16 length, int32 index = -1);
  64                 bool RemoveTag(pppoe_tag *tag);
  65                 int32 CountTags() const
  66                         { return fTags.CountItems(); }
  67                 pppoe_tag *TagAt(int32 index) const;
  68                 pppoe_tag *TagWithType(uint16 type) const;
  69
  70                 net_buffer *ToNetBuffer(uint32 MTU);
  71                         // the user is responsible for freeing the net_buffer
  72
  73         private:
  74                 uint8 fCode;
  75                 uint16 fSessionID;
  76                 TemplateList<pppoe_tag*> fTags;
  77                 status_t fInitStatus;
  78 };
  79
  80
  81 #endif