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