334 lines
7.6 KiB
C
334 lines
7.6 KiB
C
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//=============================================================================
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// Copyright (c) Microsoft Corporation
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// Abstract:
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// This module implements ifindex-name conversion functions.
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//=============================================================================
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#include "precomp.h"
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#pragma hdrstop
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#define MAX_FRIENDLY_NAME_LENGTH 2000
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HANDLE g_hMprConfig = INVALID_HANDLE_VALUE;
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DWORD
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Connect()
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{
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return MprConfigServerConnect(NULL, &g_hMprConfig);
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}
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VOID
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Disconnect()
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{
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MprConfigServerDisconnect(g_hMprConfig);
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g_hMprConfig = INVALID_HANDLE_VALUE;
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}
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DWORD
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MapAdapterNameToFriendlyName(
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IN PWCHAR pwszMachine,
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IN LPSTR AdapterName,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo,
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OUT PWCHAR *ppwszFriendlyName
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)
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/*++
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Routine Description:
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Maps an adapter GUID to an interface friendly name. This is IPv4/IPv6
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agnostic.
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Arguments:
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AdapterName - Supplies an adapter GUID.
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ppwszFriendlyName - Receives a pointer to a static buffer containing
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the interface friendly name.
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--*/
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{
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PIP_ADAPTER_ADDRESSES pIf;
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for (pIf = pAdapterInfo; pIf; pIf = pIf->Next) {
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if (!strcmp(AdapterName, pIf->AdapterName)) {
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*ppwszFriendlyName = pIf->FriendlyName;
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return NO_ERROR;
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}
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}
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return ERROR_NOT_FOUND;
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}
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#define GUID_FORMAT_A "{%08lX-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}"
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VOID
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ConvertGuidToStringA(
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IN GUID *pGuid,
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OUT PCHAR pszBuffer
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)
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{
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sprintf(pszBuffer, GUID_FORMAT_A,
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pGuid->Data1,
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pGuid->Data2,
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pGuid->Data3,
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pGuid->Data4[0],
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pGuid->Data4[1],
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pGuid->Data4[2],
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pGuid->Data4[3],
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pGuid->Data4[4],
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pGuid->Data4[5],
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pGuid->Data4[6],
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pGuid->Data4[7]);
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}
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DWORD
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MapGuidToFriendlyName(
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IN PWCHAR pwszMachine,
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IN GUID *pGuid,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo,
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OUT PWCHAR *ppwszFriendlyName
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)
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{
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CHAR szBuffer[80];
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ConvertGuidToStringA(pGuid, szBuffer);
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return MapAdapterNameToFriendlyName(pwszMachine, szBuffer,
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pAdapterInfo, ppwszFriendlyName);
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}
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DWORD
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MapFriendlyNameToAdapterName(
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IN PWCHAR pwszMachine,
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IN PWCHAR pwszFriendlyName,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo,
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OUT LPSTR *AdapterName
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)
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/*++
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Routine Description:
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Maps an interface friendly name to an adapter GUID. This is IPv4/IPv6
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agnostic.
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Arguments:
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pwszFriendlyName - Supplies an interface friendly name.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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AdapterName - Receives a pointer to a static buffer containing
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the adapter GUID.
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--*/
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{
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PIP_ADAPTER_ADDRESSES pIf;
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//
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// First look for an exact match.
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//
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for (pIf = pAdapterInfo; pIf; pIf = pIf->Next) {
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if (!_wcsicmp(pwszFriendlyName, pIf->FriendlyName)) {
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*AdapterName = pIf->AdapterName;
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return NO_ERROR;
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}
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}
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//
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// Then look for a partial match.
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//
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for (pIf = pAdapterInfo; pIf; pIf = pIf->Next) {
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if (!_wcsnicmp(pwszFriendlyName, pIf->FriendlyName,
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wcslen(pwszFriendlyName))) {
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*AdapterName = pIf->AdapterName;
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return NO_ERROR;
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}
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}
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return ERROR_NOT_FOUND;
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}
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DWORD
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MapAdapterNameToIfIndex(
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IN LPSTR AdapterName,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo,
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IN DWORD dwFamily,
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OUT DWORD *pdwIfIndex
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)
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/*++
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Routine Description:
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Maps an adapter GUID to an interface index. This is IPv4/IPv6
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specific, since each has a separate ifindex.
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Arguments:
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AdapterName - Supplies an adapter GUID.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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dwFamily - Supplies the protocol for which an ifindex is needed.
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pdwIfIndex - Receives the ifindex value.
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--*/
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{
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PIP_ADAPTER_ADDRESSES pIf;
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for (pIf=pAdapterInfo; pIf; pIf=pIf->Next) {
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if (!strcmp(pIf->AdapterName, AdapterName)) {
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break;
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}
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}
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if (!pIf) {
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*pdwIfIndex = 0;
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return ERROR_NOT_FOUND;
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}
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*pdwIfIndex = (dwFamily == AF_INET6)? pIf->Ipv6IfIndex : pIf->IfIndex;
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return NO_ERROR;
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}
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PIP_ADAPTER_ADDRESSES
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MapIfIndexToAdapter(
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IN DWORD dwFamily,
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IN DWORD dwIfIndex,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo
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)
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/*++
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Routine Description:
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Maps an interface index to an adapter entry. This is IPv4/IPv6
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specific, since each has a separate ifindex.
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Arguments:
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dwFamily - Supplies the protocol.
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dwIfIndex - Supplies the interface index to map.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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Returns:
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Adapter entry if found, NULL if not.
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--*/
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{
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PIP_ADAPTER_ADDRESSES pIf;
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for (pIf=pAdapterInfo; pIf; pIf=pIf->Next) {
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if ((dwFamily == AF_INET) && (pIf->IfIndex == dwIfIndex)) {
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break;
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}
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if ((dwFamily == AF_INET6) && (pIf->Ipv6IfIndex == dwIfIndex)) {
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break;
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}
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}
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if (!pIf) {
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return NULL;
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}
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return pIf;
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}
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LPSTR
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MapIfIndexToAdapterName(
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IN DWORD dwFamily,
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IN DWORD dwIfIndex,
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IN IP_ADAPTER_ADDRESSES *pAdapterInfo
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)
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/*++
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Routine Description:
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Maps an interface index to an adapter GUID. This is IPv4/IPv6
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specific, since each has a separate ifindex.
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Arguments:
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dwFamily - Supplies the protocol.
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dwIfIndex - Supplies the interface index to map.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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Returns:
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Adapter name if found, NULL if not.
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--*/
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{
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PIP_ADAPTER_ADDRESSES pIf;
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pIf = MapIfIndexToAdapter(dwFamily, dwIfIndex, pAdapterInfo);
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return (pIf)? pIf->AdapterName : NULL;
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}
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DWORD
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MapFriendlyNameToIpv6IfIndex(
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IN PWCHAR pwszFriendlyName,
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IN PIP_ADAPTER_ADDRESSES pAdapterInfo,
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OUT DWORD *pdwIfIndex
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)
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/*++
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Routine Description:
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Maps an interface friendly name to an interface index. This is IPv6
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specific, since IPv4 and IPv6 have separate ifindexes.
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Arguments:
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pwszFriendlyName - Supplies the friendly name to map.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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pdwIfIndex - Receives the ifindex value.
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--*/
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{
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DWORD dwErr, i;
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LPSTR AdapterName;
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PWCHAR pwszTemp;
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//
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// If string only contains digits, treat it as an IfIndex
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//
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if (wcsspn(pwszFriendlyName, L"1234567890") == wcslen(pwszFriendlyName)) {
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*pdwIfIndex = wcstoul(pwszFriendlyName, NULL, 10);
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return NO_ERROR;
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}
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dwErr = MapFriendlyNameToAdapterName(NULL, pwszFriendlyName, pAdapterInfo,
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&AdapterName);
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if (dwErr != NO_ERROR) {
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return dwErr;
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}
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return MapAdapterNameToIfIndex(AdapterName, pAdapterInfo, AF_INET6, pdwIfIndex);
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}
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DWORD
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MapIpv6IfIndexToFriendlyName(
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IN DWORD dwIfIndex,
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IN IP_ADAPTER_ADDRESSES *pAdapterInfo,
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OUT PWCHAR *ppwszFriendlyName
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)
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/*++
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Routine Description:
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Maps an interface index to a friendly name. This is IPv6
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specific, since IPv4 and IPv6 have separate ifindexes.
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Arguments:
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dwIfIndex - Supplies the ifindex value.
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pAdapterInfo - Supplies info obtained from GetAdaptersAddresses().
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ppwszFriendlyName - Receives a pointer to a static buffer containing
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the interface friendly name.
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--*/
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{
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IP_ADAPTER_ADDRESSES *If;
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for (If=pAdapterInfo; If; If=If->Next) {
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if (If->Ipv6IfIndex == dwIfIndex) {
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*ppwszFriendlyName = If->FriendlyName;
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return NO_ERROR;
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}
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}
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return ERROR_NOT_FOUND;
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}
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