diff options
Diffstat (limited to 'indra/llcommon/lluuid.cpp')
| -rw-r--r-- | indra/llcommon/lluuid.cpp | 162 |
1 files changed, 100 insertions, 62 deletions
diff --git a/indra/llcommon/lluuid.cpp b/indra/llcommon/lluuid.cpp index bcbae06ec5..583c1e589b 100644 --- a/indra/llcommon/lluuid.cpp +++ b/indra/llcommon/lluuid.cpp @@ -33,9 +33,12 @@ // We can't use WIN32_LEAN_AND_MEAN here, needs lots of includes. #if LL_WINDOWS -# undef WIN32_LEAN_AND_MEAN -# include <winsock2.h> -# include <windows.h> +#undef WIN32_LEAN_AND_MEAN +#include <winsock2.h> +#include <windows.h> +// ugh, this is ugly. We need to straighten out our linking for this library +#pragma comment(lib, "IPHLPAPI.lib") +#include <iphlpapi.h> #endif #include "lldefs.h" @@ -452,67 +455,102 @@ static void get_random_bytes(void *buf, int nbytes) return; } -#if LL_WINDOWS -typedef struct _ASTAT_ -{ - ADAPTER_STATUS adapt; - NAME_BUFFER NameBuff [30]; -}ASTAT, * PASTAT; +#if LL_WINDOWS +// Code copied from http://msdn.microsoft.com/en-us/library/aa365939(VS.85).aspx +// This code grabs the first hardware address, rather than the first interface. +// Using a VPN can cause the first returned interface to be changed. + +const S32 MAC_ADDRESS_BYTES=6; + // static -S32 LLUUID::getNodeID(unsigned char * node_id) -{ - ASTAT Adapter; - NCB Ncb; - UCHAR uRetCode; - LANA_ENUM lenum; - int i; - int retval = 0; - - memset( &Ncb, 0, sizeof(Ncb) ); - Ncb.ncb_command = NCBENUM; - Ncb.ncb_buffer = (UCHAR *)&lenum; - Ncb.ncb_length = sizeof(lenum); - uRetCode = Netbios( &Ncb ); - // printf( "The NCBENUM return code is: 0x%x \n", uRetCode ); - - for(i=0; i < lenum.length ;i++) - { - memset( &Ncb, 0, sizeof(Ncb) ); - Ncb.ncb_command = NCBRESET; - Ncb.ncb_lana_num = lenum.lana[i]; - - uRetCode = Netbios( &Ncb ); - // printf( "The NCBRESET on LANA %d return code is: 0x%x \n", - // lenum.lana[i], uRetCode ); - - memset( &Ncb, 0, sizeof (Ncb) ); - Ncb.ncb_command = NCBASTAT; - Ncb.ncb_lana_num = lenum.lana[i]; - - strcpy( (char *)Ncb.ncb_callname, "* " ); /* Flawfinder: ignore */ - Ncb.ncb_buffer = (unsigned char *)&Adapter; - Ncb.ncb_length = sizeof(Adapter); - - uRetCode = Netbios( &Ncb ); -// printf( "The NCBASTAT on LANA %d return code is: 0x%x \n", -// lenum.lana[i], uRetCode ); - if ( uRetCode == 0 ) - { -// printf( "The Ethernet Number on LANA %d is: %02x%02x%02x%02x%02x%02x\n", -// lenum.lana[i], -// Adapter.adapt.adapter_address[0], -// Adapter.adapt.adapter_address[1], -// Adapter.adapt.adapter_address[2], -// Adapter.adapt.adapter_address[3], -// Adapter.adapt.adapter_address[4], -// Adapter.adapt.adapter_address[5] ); - memcpy(node_id,Adapter.adapt.adapter_address,6); /* Flawfinder: ignore */ - retval = 1; - - } - } - return retval; +S32 LLUUID::getNodeID(unsigned char *node_id) +{ + + // Declare and initialize variables. + DWORD dwSize = 0; + DWORD dwRetVal = 0; + int i; + +/* variables used for GetIfTable and GetIfEntry */ + MIB_IFTABLE *pIfTable; + MIB_IFROW *pIfRow; + + // Allocate memory for our pointers. + pIfTable = (MIB_IFTABLE *) malloc(sizeof (MIB_IFTABLE)); + if (pIfTable == NULL) + { + printf("Error allocating memory needed to call GetIfTable\n"); + return 0; + } + + // Before calling GetIfEntry, we call GetIfTable to make + // sure there are entries to get and retrieve the interface index. + + // Make an initial call to GetIfTable to get the + // necessary size into dwSize + if (GetIfTable(pIfTable, &dwSize, 0) == ERROR_INSUFFICIENT_BUFFER) { + free(pIfTable); + pIfTable = (MIB_IFTABLE *) malloc(dwSize); + if (pIfTable == NULL) + { + printf("Error allocating memory\n"); + return 0; + } + } + // Make a second call to GetIfTable to get the actual + // data we want. + if ((dwRetVal = GetIfTable(pIfTable, &dwSize, 0)) == NO_ERROR) + { + if (pIfTable->dwNumEntries > 0) + { + pIfRow = (MIB_IFROW *) malloc(sizeof (MIB_IFROW)); + if (pIfRow == NULL) + { + printf("Error allocating memory\n"); + if (pIfTable != NULL) + { + free(pIfTable); + pIfTable = NULL; + } + return 0; + } + + int limit = MAC_ADDRESS_BYTES; + memcpy(node_id, "\0\0\0\0\0\0", limit); // zero out array of bytes + for (i = 0; i < (int) pIfTable->dwNumEntries; i++) + { + pIfRow->dwIndex = pIfTable->table[i].dwIndex; + if ((dwRetVal = GetIfEntry(pIfRow)) == NO_ERROR) + { + switch (pIfRow->dwType) + { + case IF_TYPE_ETHERNET_CSMACD: + case IF_TYPE_IEEE80211: + limit = min((int) pIfRow->dwPhysAddrLen, limit); + if (pIfRow->dwPhysAddrLen == 0) + break; + memcpy(node_id, (UCHAR *)&pIfRow->bPhysAddr[0], limit); // just incase the PhysAddr is not the expected MAC_Address size + free(pIfTable); + return 1; //return first hardware device found. + break; + + case IF_TYPE_OTHER: + case IF_TYPE_PPP: + case IF_TYPE_SOFTWARE_LOOPBACK: + case IF_TYPE_ISO88025_TOKENRING: + case IF_TYPE_IEEE1394: + case IF_TYPE_ATM: + case IF_TYPE_TUNNEL: + default: + break; + } + } + } + } + } + free(pIfTable); + return 0; } #elif LL_DARWIN |