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authorRoxie Linden <roxie@lindenlab.com>2010-03-08 21:39:38 -0800
committerRoxie Linden <roxie@lindenlab.com>2010-03-08 21:39:38 -0800
commit20379fecd9aea4d3450bcda815ad63f0ce9c729f (patch)
tree21ef1bddf49efc133b9ec74e572345125fb62175 /indra/llcommon/lluuid.cpp
parent78abe4f5ffb02e14cd98f049b8100d20a82f3b1c (diff)
parent8bd5a3bca38b0ba663d3563029e54da057020424 (diff)
automated merge
Diffstat (limited to 'indra/llcommon/lluuid.cpp')
-rw-r--r--indra/llcommon/lluuid.cpp162
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