mirror of
https://github.com/oxen-io/lokinet.git
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be7ac352ca
the native async event system on windows is _not_ very good at getting external events (i.e. we receive data, but we don't get any indication that this ever happened)
316 lines
9.1 KiB
C
316 lines
9.1 KiB
C
#if defined(__MINGW32__) && !defined(_WIN64)
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/*
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* Contains routines missing from WS2_32.DLL until 2006, if yer using
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* Microsoft C/C++, then this code is irrelevant, as the official
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* Platform SDK already links against these routines in the correct
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* libraries.
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*
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* -despair86 30/07/18
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*/
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// these need to be in a specific order
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#include <assert.h>
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#include <llarp/net.h>
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#include <windows.h>
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#include <iphlpapi.h>
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#if WINNT_CROSS_COMPILE && !NTSTATUS
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typedef LONG NTSTATUS;
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#endif
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#include "win32_intrnl.h"
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const char *
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inet_ntop(int af, const void *src, char *dst, size_t size)
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{
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int address_length;
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DWORD string_length = size;
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struct sockaddr_storage sa;
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struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
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memset(&sa, 0, sizeof(sa));
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switch(af)
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{
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case AF_INET:
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address_length = sizeof(struct sockaddr_in);
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sin->sin_family = af;
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memcpy(&sin->sin_addr, src, sizeof(struct in_addr));
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break;
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case AF_INET6:
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address_length = sizeof(struct sockaddr_in6);
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sin6->sin6_family = af;
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memcpy(&sin6->sin6_addr, src, sizeof(struct in6_addr));
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break;
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default:
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return NULL;
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}
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if(WSAAddressToString((LPSOCKADDR)&sa, address_length, NULL, dst,
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&string_length)
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== 0)
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{
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return dst;
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}
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return NULL;
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}
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int
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inet_pton(int af, const char *src, void *dst)
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{
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int address_length;
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struct sockaddr_storage sa;
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struct sockaddr_in *sin = (struct sockaddr_in *)&sa;
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&sa;
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switch(af)
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{
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case AF_INET:
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address_length = sizeof(struct sockaddr_in);
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break;
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case AF_INET6:
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address_length = sizeof(struct sockaddr_in6);
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break;
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default:
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return -1;
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}
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if(WSAStringToAddress((LPTSTR)src, af, NULL, (LPSOCKADDR)&sa, &address_length)
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== 0)
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{
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switch(af)
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{
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case AF_INET:
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memcpy(dst, &sin->sin_addr, sizeof(struct in_addr));
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break;
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case AF_INET6:
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memcpy(dst, &sin6->sin6_addr, sizeof(struct in6_addr));
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break;
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}
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return 1;
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}
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return 0;
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}
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typedef struct _InterfaceIndexTable
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{
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DWORD numIndexes;
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IF_INDEX indexes[1];
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} InterfaceIndexTable;
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// windows 2000
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// todo(despair86): implement IPv6 detection using
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// the ipv6 preview stack/adv net pack from 1999/2001
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DWORD FAR PASCAL
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_GetAdaptersAddresses(ULONG Family, ULONG Flags, PVOID Reserved,
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PIP_ADAPTER_ADDRESSES pAdapterAddresses,
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PULONG pOutBufLen)
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{
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InterfaceIndexTable *indexTable;
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IFInfo ifInfo;
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int i;
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ULONG ret, requiredSize = 0;
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PIP_ADAPTER_ADDRESSES currentAddress;
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PUCHAR currentLocation;
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HANDLE tcpFile;
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(void)(Family);
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if(!pOutBufLen)
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return ERROR_INVALID_PARAMETER;
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if(Reserved)
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return ERROR_INVALID_PARAMETER;
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indexTable = getInterfaceIndexTable();
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if(!indexTable)
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return ERROR_NOT_ENOUGH_MEMORY;
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ret = openTcpFile(&tcpFile, FILE_READ_DATA);
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if(!NT_SUCCESS(ret))
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return ERROR_NO_DATA;
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for(i = indexTable->numIndexes; i >= 0; i--)
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{
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if(NT_SUCCESS(
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getIPAddrEntryForIf(tcpFile, NULL, indexTable->indexes[i], &ifInfo)))
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{
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/* The whole struct */
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requiredSize += sizeof(IP_ADAPTER_ADDRESSES);
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/* Friendly name */
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if(!(Flags & GAA_FLAG_SKIP_FRIENDLY_NAME))
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requiredSize +=
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strlen((char *)ifInfo.if_info.ent.if_descr) + 1; // FIXME
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/* Adapter name */
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requiredSize += strlen((char *)ifInfo.if_info.ent.if_descr) + 1;
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/* Unicast address */
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if(!(Flags & GAA_FLAG_SKIP_UNICAST))
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requiredSize += sizeof(IP_ADAPTER_UNICAST_ADDRESS);
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/* FIXME: Implement multicast, anycast, and dns server stuff */
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/* FIXME: Implement dns suffix and description */
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requiredSize += 2 * sizeof(WCHAR);
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/* We're only going to implement what's required for XP SP0 */
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}
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}
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#ifdef DEBUG
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fprintf(stderr, "size: %ld, requiredSize: %ld\n", *pOutBufLen, requiredSize);
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#endif
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if(!pAdapterAddresses || *pOutBufLen < requiredSize)
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{
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*pOutBufLen = requiredSize;
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closeTcpFile(tcpFile);
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free(indexTable);
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return ERROR_BUFFER_OVERFLOW;
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}
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RtlZeroMemory(pAdapterAddresses, requiredSize);
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/* Let's set up the pointers */
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currentAddress = pAdapterAddresses;
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for(i = indexTable->numIndexes; i >= 0; i--)
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{
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if(NT_SUCCESS(
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getIPAddrEntryForIf(tcpFile, NULL, indexTable->indexes[i], &ifInfo)))
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{
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currentLocation =
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(PUCHAR)currentAddress + (ULONG_PTR)sizeof(IP_ADAPTER_ADDRESSES);
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/* FIXME: Friendly name */
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if(!(Flags & GAA_FLAG_SKIP_FRIENDLY_NAME))
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{
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currentAddress->FriendlyName = (PVOID)currentLocation;
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currentLocation += sizeof(WCHAR);
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}
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/* Adapter name */
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currentAddress->AdapterName = (PVOID)currentLocation;
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currentLocation += strlen((char *)ifInfo.if_info.ent.if_descr) + 1;
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/* Unicast address */
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if(!(Flags & GAA_FLAG_SKIP_UNICAST))
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{
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currentAddress->FirstUnicastAddress = (PVOID)currentLocation;
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currentLocation += sizeof(IP_ADAPTER_UNICAST_ADDRESS);
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currentAddress->FirstUnicastAddress->Address.lpSockaddr =
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(PVOID)currentLocation;
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currentLocation += sizeof(struct sockaddr);
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}
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/* FIXME: Implement multicast, anycast, and dns server stuff */
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/* FIXME: Implement dns suffix and description */
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currentAddress->DnsSuffix = (PVOID)currentLocation;
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currentLocation += sizeof(WCHAR);
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currentAddress->Description = (PVOID)currentLocation;
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currentLocation += sizeof(WCHAR);
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currentAddress->Next = (PVOID)currentLocation;
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/* Terminate the last address correctly */
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if(i == 0)
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currentAddress->Next = NULL;
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/* We're only going to implement what's required for XP SP0 */
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currentAddress = currentAddress->Next;
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}
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}
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/* Now again, for real this time */
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currentAddress = pAdapterAddresses;
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for(i = indexTable->numIndexes; i >= 0; i--)
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{
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if(NT_SUCCESS(
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getIPAddrEntryForIf(tcpFile, NULL, indexTable->indexes[i], &ifInfo)))
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{
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/* Make sure we're not looping more than we hoped for */
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assert(currentAddress);
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/* Alignment information */
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currentAddress->Length = sizeof(IP_ADAPTER_ADDRESSES);
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currentAddress->IfIndex = indexTable->indexes[i];
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/* Adapter name */
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strcpy(currentAddress->AdapterName, (char *)ifInfo.if_info.ent.if_descr);
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if(!(Flags & GAA_FLAG_SKIP_UNICAST))
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{
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currentAddress->FirstUnicastAddress->Length =
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sizeof(IP_ADAPTER_UNICAST_ADDRESS);
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currentAddress->FirstUnicastAddress->Flags = 0; // FIXME
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currentAddress->FirstUnicastAddress->Next =
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NULL; // FIXME: Support more than one address per adapter
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currentAddress->FirstUnicastAddress->Address.lpSockaddr->sa_family =
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AF_INET;
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memcpy(currentAddress->FirstUnicastAddress->Address.lpSockaddr->sa_data,
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&ifInfo.ip_addr.iae_addr, sizeof(ifInfo.ip_addr.iae_addr));
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currentAddress->FirstUnicastAddress->Address.iSockaddrLength =
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sizeof(ifInfo.ip_addr.iae_addr) + sizeof(USHORT);
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currentAddress->FirstUnicastAddress->PrefixOrigin =
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IpPrefixOriginOther; // FIXME
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currentAddress->FirstUnicastAddress->SuffixOrigin =
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IpSuffixOriginOther; // FIXME
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currentAddress->FirstUnicastAddress->DadState =
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IpDadStatePreferred; // FIXME
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currentAddress->FirstUnicastAddress->ValidLifetime =
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0xFFFFFFFF; // FIXME
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currentAddress->FirstUnicastAddress->PreferredLifetime =
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0xFFFFFFFF; // FIXME
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currentAddress->FirstUnicastAddress->LeaseLifetime =
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0xFFFFFFFF; // FIXME
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}
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/* FIXME: Implement multicast, anycast, and dns server stuff */
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currentAddress->FirstAnycastAddress = NULL;
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currentAddress->FirstMulticastAddress = NULL;
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currentAddress->FirstDnsServerAddress = NULL;
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/* FIXME: Implement dns suffix, description, and friendly name */
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currentAddress->DnsSuffix[0] = UNICODE_NULL;
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currentAddress->Description[0] = UNICODE_NULL;
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currentAddress->FriendlyName[0] = UNICODE_NULL;
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/* Physical Address */
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memcpy(currentAddress->PhysicalAddress, ifInfo.if_info.ent.if_physaddr,
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ifInfo.if_info.ent.if_physaddrlen);
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currentAddress->PhysicalAddressLength = ifInfo.if_info.ent.if_physaddrlen;
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/* Flags */
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currentAddress->Flags = 0; // FIXME
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/* MTU */
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currentAddress->Mtu = ifInfo.if_info.ent.if_mtu;
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/* Interface type */
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currentAddress->IfType = ifInfo.if_info.ent.if_type;
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/* Operational status */
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if(ifInfo.if_info.ent.if_operstatus >= IF_OPER_STATUS_CONNECTING)
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currentAddress->OperStatus = IfOperStatusUp;
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else
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currentAddress->OperStatus = IfOperStatusDown;
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/* We're only going to implement what's required for XP SP0 */
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/* Move to the next address */
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currentAddress = currentAddress->Next;
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}
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}
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closeTcpFile(tcpFile);
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free(indexTable);
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return NO_ERROR;
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}
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#endif
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