cCardCryptoworks Class Reference

#include <parse.h>

Inheritance diagram for cCardCryptoworks:

List of all members.

Public Member Functions
	cCardCryptoworks (const unsigned char *a)
virtual	~cCardCryptoworks ()
virtual bool	MatchEMM (const unsigned char *data)
virtual int	UpdateType (const unsigned char *data)
virtual int	Assemble (cAssembleData *ad)
Public Attributes
unsigned char	addr [5]

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Detailed Description

Definition at line 266 of file parse.h.

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Constructor & Destructor Documentation

cCardCryptoworks::cCardCryptoworks

(

const unsigned char *

a

)

Definition at line 588 of file parse.c.

References addr.

{
  memcpy(addr,a,sizeof(addr));
  sharedEmm=0; sharedLen=globalToggle=0; globalCrc=0;
}

cCardCryptoworks::~cCardCryptoworks

(

)

[virtual]

Definition at line 594 of file parse.c.

References free.

{
  free(sharedEmm);
}

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Member Function Documentation

int cCardCryptoworks::Assemble

(

cAssembleData *

ad

)

[virtual]

Reimplemented from cCard.

Definition at line 623 of file parse.c.

References AUTOMEM, crc32_le(), cAssembleData::Data(), data, free, SCT_LEN, cAssembleData::SetAssembled(), SetSctLen(), and SortNanos().

{
  const unsigned char *data=ad->Data();
  int len=SCT_LEN(data);
  switch(data[0]) {
    case 0x82:
      return 0; // no assemble needed

    case 0x84:
      free(sharedEmm);
      sharedEmm=(unsigned char *)malloc(len);
      if(sharedEmm) {
        memcpy(sharedEmm,data,len);
        sharedLen=len;
        }
      break;

    case 0x86:
      if(sharedEmm) {
        int alen=len-5 + sharedLen-12;
        unsigned char *tmp=AUTOMEM(alen);
        memcpy(tmp,&data[5],len-5);
        memcpy(tmp+len-5,&sharedEmm[12],sharedLen-12);

        unsigned char *ass=(unsigned char *)malloc(alen+12);
        if(!ass) return -1; // ignore
        memcpy(ass,sharedEmm,12);
        SortNanos(ass+12,tmp,alen);
        SetSctLen(ass,alen+9);
        free(sharedEmm); sharedEmm=0;
        if(ass[11]==alen) { // sanity check
          ad->SetAssembled(ass);
          return 1; // assembled
          }
        }
      break;

    case 0x88:
    case 0x89:
      if(data[0]!=globalToggle) {
        globalToggle=data[0];
        unsigned int crc=crc32_le(0,data+1,len-1);
        if(crc!=globalCrc) {
          globalCrc=crc;
          return 0; // no assemble needed
          }
        }
      break;
    }
  return -1; // ignore
}

bool cCardCryptoworks::MatchEMM

(

const unsigned char *

data

)

[virtual]

Implements cCard.

Definition at line 599 of file parse.c.

References addr.

{
  if((data[1]&0xF0)==0x70 && data[3]==0xA9 && data[4]==0xff) {
    switch(data[0]) {
      case 0x82: return !memcmp(&data[5],addr,sizeof(addr));
      case 0x84: return !memcmp(&data[5],addr,sizeof(addr)-1);
      case 0x86:
      case 0x88:
      case 0x89: return true;
      }
    }
  return false;
}

int cCardCryptoworks::UpdateType

(

const unsigned char *

data

)

[virtual]

Reimplemented from cCard.

Definition at line 613 of file parse.c.

{
  switch(data[0]) {
    case 0x82: return 3; // unique
    case 0x84:
    case 0x86: return 2; // shared
    default:   return 0; // global
    }
}

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Member Data Documentation

unsigned char cCardCryptoworks::addr[5]

Definition at line 272 of file parse.h.

Referenced by cCardCryptoworks(), and MatchEMM().

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The documentation for this class was generated from the following files:

• sc/PLUGINS/src/sc-src/parse.h
• sc/PLUGINS/src/sc-src/parse.c