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The GetIfTable2 function retrieves the MIB-II interface table.
Syntax
NETIOAPI_API GetIfTable2(
_Out_ PMIB_IF_TABLE2 *Table
);
Parameters
- Table [out]
A pointer to a buffer that receives the table of interfaces in a MIB_IF_TABLE2 structure.
Return value
GetIfTable2 returns STATUS_SUCCESS if the function succeeds.
If the function fails, GetIfTable2 returns one of the following error codes:
| Return code | Description |
|---|---|
| STATUS_NOT_ENOUGH_MEMORY | Insufficient memory resources are available to complete the operation. |
| Other | Use the FormatMessage function to obtain the message string for the returned error. |
Remarks
The GetIfTable2 function enumerates the logical and physical interfaces on a local computer and returns this information in a MIB_IF_TABLE2 structure.
Your driver can use a similar function, GetIfTable2Ex, to specify the level of interfaces to return. A call to the GetIfTable2Ex function with the Level parameter set to MibIfTableNormal retrieves the same results as calling the GetIfTable2 function.
GetIfTable2 returns interfaces in a MIB_IF_TABLE2 structure in the buffer that the Table parameter points to. The MIB_IF_TABLE2 structure contains an interface count and an array of MIB_IF_ROW2 structures for each interface. GetIfTable2 allocates memory for the MIB_IF_TABLE2 structure and the MIB_IF_ROW2 entries in this structure. When these returned structures are no longer required, your driver should free the memory by calling FreeMibTable.
Note that the returned MIB_IF_TABLE2 structure that the Table parameter points to might contain padding for alignment between the NumEntries member and the first MIB_IF_ROW2 array entry in the Table member of the MIB_IF_TABLE2 structure. Padding for alignment might also be present between the MIB_IF_ROW2 array entries. Any access to a MIB_IF_ROW2 array entry should assume padding may exist.
Requirements
Target platform |
Universal |
Version |
Available in Windows Vista and later versions of the Windows operating systems. |
Header |
Netioapi.h (include Netioapi.h) |
Library |
Netio.lib |
IRQL |
< DISPATCH_LEVEL |