/***********************************************************************/ /* TABMAC: Author Olivier Bertrand -- PlugDB -- 2008-2012 */ /* From the article and sample code by Khalid Shaikh. */ /* TABMAC: virtual table to get the list of MAC addresses. */ /***********************************************************************/ #ifdefined(_WIN32) #include"my_global.h" //#include <iphlpapi.h> #else// !_WIN32 #errorThis is a WINDOWS only table type #endif// !_WIN32 #include"global.h" #include"plgdbsem.h" //#include "catalog.h" //#include "reldef.h" #include"xtable.h" #include"colblk.h" #include"tabmac.h"
#if0// This is placed here just to know what are the actual values #define MAX_ADAPTER_DESCRIPTION_LENGTH 128 #define MAX_ADAPTER_NAME_LENGTH 256 #define MAX_ADAPTER_ADDRESS_LENGTH 8 #define DEFAULT_MINIMUM_ENTITIES 32 #define MAX_HOSTNAME_LEN 128 #define MAX_DOMAIN_NAME_LEN 128 #define MAX_SCOPE_ID_LEN 256
/* -------------- Implementation of the MAC classes ------------------ */
/***********************************************************************/ /* DefineAM: define specific AM block values from MAC file. */ /***********************************************************************/ bool MACDEF::DefineAM(PGLOBAL g, LPCSTR am, int poff)
{ returnfalse;
} // end of DefineAM
/***********************************************************************/ /* GetTable: makes a new TDB of the proper type. */ /***********************************************************************/
PTDB MACDEF::GetTable(PGLOBAL g, MODE m)
{ returnnew(g) TDBMAC(this);
} // end of GetTable
/***********************************************************************/ /* MAC: Get the number of found adapters. */ /***********************************************************************/ void TDBMAC::MakeErrorMsg(PGLOBAL g, DWORD drc)
{ if (drc == ERROR_BUFFER_OVERFLOW)
snprintf(g->Message, sizeof(g->Message), "GetAdaptersInfo: Buffer Overflow buflen=%d maxsize=%d",
Buflen, MaxSize); elseif (drc == ERROR_INVALID_PARAMETER)
strcpy(g->Message, "GetAdaptersInfo: Invalid parameters"); elseif (drc == ERROR_NO_DATA)
strcpy(g->Message, "No adapter information exists for the local computer"); elseif (drc == ERROR_NOT_SUPPORTED)
strcpy(g->Message, "GetAdaptersInfo is not supported"); else
FormatMessage(FORMAT_MESSAGE_FLAGS, NULL, GetLastError(), 0, g->Message, sizeof(g->Message), NULL);
} // end of MakeErrorMsg
/***********************************************************************/ /* GetMacInfo: Get info for all found adapters. */ /***********************************************************************/ bool TDBMAC::GetMacInfo(PGLOBAL g)
{
DWORD drc;
if (GetMaxSize(g) < 0) returntrue; elseif (MaxSize == 0) returnfalse;
/***********************************************************************/ /* MAC: Get the number of found adapters. */ /***********************************************************************/ int TDBMAC::GetMaxSize(PGLOBAL g)
{ if (Use != USE_OPEN) // Called from info, Adap and Fix are not set yet return1;
if (MaxSize < 0) { // Best method if (Adap) {
DWORD drc = GetAdaptersInfo(NULL, &(Buflen = 0));
if (drc == ERROR_SUCCESS)
MaxSize = (Fix) ? 1 : 0; elseif (drc == ERROR_BUFFER_OVERFLOW) { // sizeof(IP_ADAPTER_INFO) was returning 640 but is now sometimes // returning 648 while the Buflen setting remains the same (n*640) // >> Of course, the code above contains a race condition.... // if the size of the structure Windows wants to return grows after // the first call to GetAdaptersInfo() but before the second call // to GetAdaptersInfo(), the second call to GetAdaptersInfo() will // fail with ERROR_BUFFER_OVERFLOW as well, and your function won't // work (by Jeremy Friesner on stackoverflow.com). // That's why we add something to it to be comfortable.
MaxSize = (Buflen + 600) / sizeof(IP_ADAPTER_INFO);
// Now Buflen must be updated if 648 is true.
Buflen = MaxSize * sizeof(IP_ADAPTER_INFO);
} else
MakeErrorMsg(g, drc);
} else
MaxSize = (Fix) ? 1 : 0;
#if0 // This method returns too many adapters
DWORD dw, drc = GetNumberOfInterfaces((PDWORD)&dw);
/***********************************************************************/ /* MAC Access Method opening routine. */ /***********************************************************************/ bool TDBMAC::OpenDB(PGLOBAL g)
{ if (Use == USE_OPEN) { /*******************************************************************/ /* Table already open, this should not happen. */ /*******************************************************************/
strcpy(g->Message, "TDBMAC should not be reopened"); returntrue;
} // endif use
if (Mode != MODE_READ) { /*******************************************************************/ /* MAC tables cannot be modified. */ /*******************************************************************/
strcpy(g->Message, "MAC tables are read only"); returntrue;
} else
Use = USE_OPEN;
/*********************************************************************/ /* Get the adapters info. */ /*********************************************************************/ if (Adap && GetMacInfo(g)) returntrue;
if (Fix && GetFixedInfo(g)) returntrue;
/*********************************************************************/ /* All is done. */ /*********************************************************************/ returnfalse;
} // end of OpenDB
/***********************************************************************/ /* Data Base read routine for MAC access method. */ /***********************************************************************/ int TDBMAC::ReadDB(PGLOBAL g)
{
Curp = Next;
if (Curp)
Next = Curp->Next; elseif (N || !Fix) return RC_EF;
N++; return RC_OK;
} // end of ReadDB
/***********************************************************************/ /* WriteDB: Data Base write routine for MAC access methods. */ /***********************************************************************/ int TDBMAC::WriteDB(PGLOBAL g)
{
strcpy(g->Message, "MAC tables are read only"); return RC_FX;
} // end of WriteDB
/***********************************************************************/ /* Data Base delete line routine for MAC access methods. */ /***********************************************************************/ int TDBMAC::DeleteDB(PGLOBAL g, int irc)
{
strcpy(g->Message, "Delete not enabled for MAC tables"); return RC_FX;
} // end of DeleteDB
/***********************************************************************/ /* Read the next MAC address elements. */ /***********************************************************************/ void MACCOL::ReadColumn(PGLOBAL g)
{ // Type conversion is handled by Value set routines char *p = NULL, buf[260] = ""; unsignedint i; int n = 0;
PIP_ADAPTER_INFO adp = Tdbp->Curp;
FIXED_INFO *fip = Tdbp->FixedInfo;
if (!adp && Flag >= 10) { // Fix info row, no adapter info available switch (Flag) { case13: case14: case19: case22: case23:
n = 0; break; default:
p = PlugDup(g, "");
} // endswitch Flag
} elseswitch (Flag) { // FIXED INFO case1: // Host Name
p = fip->HostName; break; case2: // Domain Name
p = fip->DomainName; break; case3: // DNS IPaddress
p = (fip->CurrentDnsServer)
? (char*)&fip->CurrentDnsServer->IpAddress
: (char*)&fip->DnsServerList.IpAddress; break; case4: // Node Type
n = (int)fip->NodeType; break; case5: // Scope ID ???
p = fip->ScopeId; break; case6: // Routing enabled
n = (int)fip->EnableRouting; break; case7: // Proxy enabled
n = (int)fip->EnableProxy; break; case8: // DNS enabled
n = (int)fip->EnableDns; break; // ADAPTERS INFO case10: // Name
p = adp->AdapterName; break; case11: // Description if ((p = strstr(adp->Description, " - Packet Scheduler Miniport"))) {
strncpy(buf, adp->Description, p - adp->Description);
i = (int)(p - adp->Description);
strncpy(buf, adp->Description, i);
buf[i] = 0;
p = buf;
} elseif ((p = strstr(adp->Description, " - Miniport d'ordonnancement de paquets"))) {
i = (int)(p - adp->Description);
strncpy(buf, adp->Description, i);
buf[i] = 0;
p = buf;
} else
p = adp->Description;
break; case12: // MAC Address for (p = buf, i = 0; i < adp->AddressLength; i++) { if (i)
strcat(p++, "-");
p += snprintf(p, sizeof(buf) - (p - buf), "%.2X", adp->Address[i]);
} // endfor i
p = buf; break; case13: // Type #if0// This is not found in the SDK switch (adp->Type) { case IF_ETHERNET_ADAPTERTYPE: p = "Ethernet Adapter"; break; case IF_TOKEN_RING_ADAPTERTYPE: p = "Token Ring Adapter"; break; case IF_FDDI_ADAPTERTYPE: p = "FDDI Adapter"; break; case IF_PPP_ADAPTERTYPE: p = "PPP Adapter"; break; case IF_LOOPBACK_ADAPTERTYPE: p = "Loop Back Adapter"; break; // case IF_SLIP_ADAPTERTYPE: p = "Generic Slip Adapter"; break; default:
snprintf(buf, sizeof(buf), "Other Adapter, type=%d", adp->Type);
p = buf;
} // endswitch Type #endif// 0
n = (int)adp->Type; break; case14: // DHCP enabled
n = (int)adp->DhcpEnabled; break; case15: // IP Address
p = (adp->CurrentIpAddress)
? (char*)&adp->CurrentIpAddress->IpAddress
: (char*)&adp->IpAddressList.IpAddress; break; case16: // Subnet Mask
p = (adp->CurrentIpAddress)
? (char*)&adp->CurrentIpAddress->IpMask
: (char*)&adp->IpAddressList.IpMask; break; case17: // Gateway
p = (char*)&adp->GatewayList.IpAddress; break; case18: // DHCP Server
p = (char*)&adp->DhcpServer.IpAddress; break; case19: // Have WINS
n = (adp->HaveWins) ? 1 : 0; break; case20: // Primary WINS
p = (char*)&adp->PrimaryWinsServer.IpAddress; break; case21: // Secondary WINS
p = (char*)&adp->SecondaryWinsServer.IpAddress; break; case22: // Lease obtained
n = (int)adp->LeaseObtained; break; case23: // Lease expires
n = (int)adp->LeaseExpires; break; default: if (Buf_Type == TYPE_STRING) {
snprintf(buf, sizeof(buf), "Invalid flag value %d", Flag);
p = buf;
} else
n = 0;
} // endswitch Flag
if (p)
Value->SetValue_psz(p); else
Value->SetValue(n);
} // end of ReadColumn
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