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116 lines
4.6 KiB
C
116 lines
4.6 KiB
C
/* ifenum.h
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* Copyright (C) 2003,2006 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* This module implements network interface and address enumeration. It's
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* meant to hide some problematic defines like socket(), and make iphlpapi
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* more portable.
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*
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* Like Windows, it uses a numeric index to identify an interface uniquely.
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* As implemented, an interface represents a UNIX network interface, virtual
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* or real, and thus can have 0 or 1 IP addresses associated with it. (This
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* only supports IPv4.)
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* The indexes returned are not guaranteed to be contiguous, so don't call
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* getNumInterfaces() and assume the values [0,getNumInterfaces() - 1] will be
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* valid indexes; use getInterfaceIndexTable() instead.
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*
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* See also the companion file, ipstats.h, for functions related to getting
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* statistics.
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*/
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#ifndef WINE_IFENUM_H_
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#define WINE_IFENUM_H_
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "iprtrmib.h"
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#define MAX_INTERFACE_PHYSADDR 8
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#define MAX_INTERFACE_DESCRIPTION 256
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DWORD getNumInterfaces(void);
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DWORD getNumNonLoopbackInterfaces(void);
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/* A table of interface indexes, see get*InterfaceTable(). */
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typedef struct _InterfaceIndexTable {
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DWORD numIndexes;
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DWORD indexes[1];
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} InterfaceIndexTable;
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/* Returns a table with all known interface indexes, or NULL if one could not
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* be allocated. HeapFree() the returned table.
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*/
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InterfaceIndexTable *getInterfaceIndexTable(void);
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/* Like getInterfaceIndexTable, but filters out loopback interfaces. */
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InterfaceIndexTable *getNonLoopbackInterfaceIndexTable(void);
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/* ByName/ByIndex versions of various getter functions. */
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/* can be used as quick check to see if you've got a valid index, returns NULL
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* if not. Overwrites your buffer, which should be at least of size
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* MAX_ADAPTER_NAME.
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*/
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char *getInterfaceNameByIndex(DWORD index, char *name);
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/* Fills index with the index of name, if found. Returns
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* ERROR_INVALID_PARAMETER if name or index is NULL, ERROR_INVALID_DATA if name
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* is not found, and NO_ERROR on success.
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*/
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DWORD getInterfaceIndexByName(const char *name, PDWORD index);
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/* Gets a few physical characteristics of a device: MAC addr len, MAC addr,
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* and type as one of the MIB_IF_TYPEs.
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* len's in-out: on in, needs to say how many bytes are available in addr,
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* which to be safe should be MAX_INTERFACE_PHYSADDR. On out, it's how many
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* bytes were set, or how many were required if addr isn't big enough.
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* Returns ERROR_INVALID_PARAMETER if name, len, addr, or type is NULL.
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* Returns ERROR_INVALID_DATA if name/index isn't valid.
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* Returns ERROR_INSUFFICIENT_BUFFER if addr isn't large enough for the
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* physical address; *len will contain the required size.
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* May return other errors, e.g. ERROR_OUTOFMEMORY or ERROR_NO_MORE_FILES,
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* if internal errors occur.
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* Returns NO_ERROR on success.
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*/
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DWORD getInterfacePhysicalByName(const char *name, PDWORD len, PBYTE addr,
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PDWORD type);
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DWORD getInterfacePhysicalByIndex(DWORD index, PDWORD len, PBYTE addr,
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PDWORD type);
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/* Fills in the MIB_IFROW by name/index. Doesn't fill in interface statistics,
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* see ipstats.h for that.
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* Returns ERROR_INVALID_PARAMETER if name or entry is NULL, ERROR_INVALID_DATA
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* if name/index isn't valid, and NO_ERROR otherwise.
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*/
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DWORD getInterfaceEntryByName(const char *name, PMIB_IFROW entry);
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DWORD getInterfaceEntryByIndex(DWORD index, PMIB_IFROW entry);
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DWORD getNumIPAddresses(void);
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/* Gets the configured IP addresses for the system, and sets *ppIpAddrTable to
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* a table of them allocated from heap, or NULL if out of memory. Returns
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* NO_ERROR on success, something else on failure. Note there may be more than
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* one IP address may exist per interface.
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*/
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DWORD getIPAddrTable(PMIB_IPADDRTABLE *ppIpAddrTable, HANDLE heap, DWORD flags);
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/* Converts the network-order bytes in addr to a printable string. Returns
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* string.
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*/
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char *toIPAddressString(unsigned int addr, char string[16]);
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#endif /* ndef WINE_IFENUM_H_ */
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