2 * Copyright (C) 2003,2006 Juan Lang
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18 * This module implements network interface and address enumeration. It's
19 * meant to hide some problematic defines like socket(), and make iphlpapi
22 * Like Windows, it uses a numeric index to identify an interface uniquely.
23 * As implemented, an interface represents a UNIX network interface, virtual
24 * or real, and thus can have 0 or 1 IP addresses associated with it. (This
25 * only supports IPv4.)
26 * The indexes returned are not guaranteed to be contiguous, so don't call
27 * getNumInterfaces() and assume the values [0,getNumInterfaces() - 1] will be
28 * valid indexes; use getInterfaceIndexTable() instead.
30 * See also the companion file, ipstats.h, for functions related to getting
33 #ifndef WINE_IFENUM_H_
34 #define WINE_IFENUM_H_
44 #define MAX_INTERFACE_PHYSADDR 8
45 #define MAX_INTERFACE_DESCRIPTION 256
47 DWORD getNumInterfaces(void);
48 DWORD getNumNonLoopbackInterfaces(void);
49 BOOL isIfIndexLoopback(ULONG idx);
51 /* A table of interface indexes, see get*InterfaceTable(). */
52 typedef struct _InterfaceIndexTable {
55 } InterfaceIndexTable;
57 /* Returns a table with all known interface indexes, or NULL if one could not
58 * be allocated. HeapFree() the returned table.
60 InterfaceIndexTable *getInterfaceIndexTable(void);
62 /* Like getInterfaceIndexTable, but filters out loopback interfaces. */
63 InterfaceIndexTable *getNonLoopbackInterfaceIndexTable(void);
65 /* ByName/ByIndex versions of various getter functions. */
67 /* can be used as quick check to see if you've got a valid index, returns NULL
68 * if not. Overwrites your buffer, which should be at least of size
71 char *getInterfaceNameByIndex(DWORD index, char *name);
73 /* Fills index with the index of name, if found. Returns
74 * ERROR_INVALID_PARAMETER if name or index is NULL, ERROR_INVALID_DATA if name
75 * is not found, and NO_ERROR on success.
77 DWORD getInterfaceIndexByName(const char *name, PDWORD index);
79 /* Gets a few physical characteristics of a device: MAC addr len, MAC addr,
80 * and type as one of the MIB_IF_TYPEs.
81 * len's in-out: on in, needs to say how many bytes are available in addr,
82 * which to be safe should be MAX_INTERFACE_PHYSADDR. On out, it's how many
83 * bytes were set, or how many were required if addr isn't big enough.
84 * Returns ERROR_INVALID_PARAMETER if name, len, addr, or type is NULL.
85 * Returns ERROR_INVALID_DATA if name/index isn't valid.
86 * Returns ERROR_INSUFFICIENT_BUFFER if addr isn't large enough for the
87 * physical address; *len will contain the required size.
88 * May return other errors, e.g. ERROR_OUTOFMEMORY or ERROR_NO_MORE_FILES,
89 * if internal errors occur.
90 * Returns NO_ERROR on success.
92 DWORD getInterfacePhysicalByIndex(DWORD index, PDWORD len, PBYTE addr,
95 /* Fills in the MIB_IFROW by name. Doesn't fill in interface statistics,
96 * see ipstats.h for that.
97 * Returns ERROR_INVALID_PARAMETER if name is NULL, ERROR_INVALID_DATA
98 * if name isn't valid, and NO_ERROR otherwise.
100 DWORD getInterfaceEntryByName(const char *name, PMIB_IFROW entry);
102 DWORD getNumIPAddresses(void);
104 /* Gets the configured IP addresses for the system, and sets *ppIpAddrTable to
105 * a table of them allocated from heap, or NULL if out of memory. Returns
106 * NO_ERROR on success, something else on failure. Note there may be more than
107 * one IP address may exist per interface.
109 DWORD getIPAddrTable(PMIB_IPADDRTABLE *ppIpAddrTable, HANDLE heap, DWORD flags);
111 /* Returns the IPv6 addresses for a particular interface index.
112 * Returns NO_ERROR on success, something else on failure.
114 ULONG v6addressesFromIndex(DWORD index, SOCKET_ADDRESS **addrs, ULONG *num_addrs);
116 /* Converts the network-order bytes in addr to a printable string. Returns
119 char *toIPAddressString(unsigned int addr, char string[16]);
121 DWORD getInterfaceMtuByName(const char *name, PDWORD mtu);
122 DWORD getInterfaceStatusByName(const char *name, PDWORD status);
124 #endif /* ndef WINE_IFENUM_H_ */