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[IPHLPAPI] Start handling certain flags in GetAdaptersAddresses()

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For now, we only support the most useful ones: IP_ADAPTER_DDNS_ENABLED,
IP_ADAPTER_REGISTER_ADAPTER_SUFFIX, IP_ADAPTER_DHCP_ENABLED
This commit is contained in:
Pierre Schweitzer 2018-11-26 22:41:25 +01:00
parent 3e3560e9c2
commit 6d6e371225
No known key found for this signature in database
GPG key ID: 7545556C3D585B0B
1 changed files with 46 additions and 1 deletions
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47
dll/win32/iphlpapi/address.c
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@ -265,6 +265,51 @@ EnumerateServerName(
*Ptr = &ServerAddress->Next;
}
static
VOID
QueryFlags(
_In_ PUCHAR Interface,
_In_ DWORD InterfaceLength,
_Out_ LPDWORD Flags)
{
HKEY InterfaceKey;
CHAR KeyName[256];
DWORD Type, Size, Data;
*Flags = 0;
snprintf(KeyName, 256,
"SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces\\%*s",
InterfaceLength, Interface);
if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, KeyName, 0, KEY_READ, &InterfaceKey) == ERROR_SUCCESS)
{
Size = sizeof(DWORD);
if (RegQueryValueExA(InterfaceKey, "EnableDHCP", NULL, &Type, (LPBYTE)&Data, &Size) == ERROR_SUCCESS &&
Type == REG_DWORD && Data == 1)
{
*Flags |= IP_ADAPTER_DHCP_ENABLED;
}
Size = sizeof(DWORD);
if (RegQueryValueExA(InterfaceKey, "RegisterAdapterName", NULL, &Type, (LPBYTE)&Data, &Size) == ERROR_SUCCESS &&
Type == REG_DWORD && Data == 1)
{
*Flags |= IP_ADAPTER_REGISTER_ADAPTER_SUFFIX;
}
Size = 0;
if (RegQueryValueExA(InterfaceKey, "NameServer", NULL, &Type, (LPBYTE)&Data, &Size) != ERROR_SUCCESS)
{
*Flags |= IP_ADAPTER_DDNS_ENABLED;
}
RegCloseKey(InterfaceKey);
}
// FIXME: handle 0x8 -> 0x20
}
DWORD
WINAPI
DECLSPEC_HOTPATCH
@ -438,7 +483,7 @@ GetAdaptersAddresses(
CurrentAA->IfIndex = Entry->if_index;
CopyMemory(CurrentAA->PhysicalAddress, Entry->if_physaddr, Entry->if_physaddrlen);
CurrentAA->PhysicalAddressLength = Entry->if_physaddrlen;
CurrentAA->Flags = 0; // FIXME!
QueryFlags(&Entry->if_descr[0], Entry->if_descrlen, &CurrentAA->Flags);
CurrentAA->Mtu = Entry->if_mtu;
CurrentAA->IfType = Entry->if_type;
if(Entry->if_operstatus >= IF_OPER_STATUS_CONNECTING)