[PATCH 3/6] iphlpapi: Implement GetAdaptersInfo() on top of nsi.
Signed-off-by: Huw Davies <huw(a)codeweavers.com> --- dlls/iphlpapi/iphlpapi_main.c | 281 +++++++++++++++++----------------- 1 file changed, 144 insertions(+), 137 deletions(-) diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c index 462dc055527..93efed2ca2e 100644 --- a/dlls/iphlpapi/iphlpapi_main.c +++ b/dlls/iphlpapi/iphlpapi_main.c @@ -608,155 +608,162 @@ static DWORD get_wins_servers( SOCKADDR_INET **servers ) return count; } +static void ip_addr_string_init( IP_ADDR_STRING *s, const IN_ADDR *addr, const IN_ADDR *mask, DWORD ctxt ) +{ + s->Next = NULL; + + if (addr) RtlIpv4AddressToStringA( addr, s->IpAddress.String ); + else s->IpAddress.String[0] = '\0'; + if (mask) RtlIpv4AddressToStringA( mask, s->IpMask.String ); + else s->IpMask.String[0] = '\0'; + s->Context = ctxt; +} + /****************************************************************** * GetAdaptersInfo (IPHLPAPI.@) * * Get information about adapters. * * PARAMS - * pAdapterInfo [Out] buffer for adapter infos - * pOutBufLen [In] length of output buffer - * - * RETURNS - * Success: NO_ERROR - * Failure: error code from winerror.h + * info [Out] buffer for adapter infos + * size [In] length of output buffer */ -DWORD WINAPI GetAdaptersInfo(PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen) +DWORD WINAPI GetAdaptersInfo( IP_ADAPTER_INFO *info, ULONG *size ) { - DWORD ret; + DWORD err, if_count, if_num = 0, uni_count, fwd_count, needed, wins_server_count; + DWORD len, i, uni, fwd; + NET_LUID *if_keys = NULL; + struct nsi_ndis_ifinfo_rw *if_rw = NULL; + struct nsi_ndis_ifinfo_dynamic *if_dyn = NULL; + struct nsi_ndis_ifinfo_static *if_stat = NULL; + struct nsi_ipv4_unicast_key *uni_keys = NULL; + struct nsi_ip_unicast_rw *uni_rw = NULL; + struct nsi_ipv4_forward_key *fwd_keys = NULL; + SOCKADDR_INET *wins_servers = NULL; + IP_ADDR_STRING *extra_ip_addrs, *cursor; + IN_ADDR gw, mask; - TRACE("pAdapterInfo %p, pOutBufLen %p\n", pAdapterInfo, pOutBufLen); - if (!pOutBufLen) - ret = ERROR_INVALID_PARAMETER; - else { - DWORD numNonLoopbackInterfaces = get_interface_indices( TRUE, NULL ); - - if (numNonLoopbackInterfaces > 0) { - DWORD numIPAddresses = getNumIPAddresses(); - ULONG size; - - /* This may slightly overestimate the amount of space needed, because - * the IP addresses include the loopback address, but it's easier - * to make sure there's more than enough space than to make sure there's - * precisely enough space. - */ - size = sizeof(IP_ADAPTER_INFO) * numNonLoopbackInterfaces; - size += numIPAddresses * sizeof(IP_ADDR_STRING); - if (!pAdapterInfo || *pOutBufLen < size) { - *pOutBufLen = size; - ret = ERROR_BUFFER_OVERFLOW; - } - else { - InterfaceIndexTable *table = NULL; - PMIB_IPADDRTABLE ipAddrTable = NULL; - PMIB_IPFORWARDTABLE routeTable = NULL; - - ret = getIPAddrTable(&ipAddrTable, GetProcessHeap(), 0); - if (!ret) - ret = AllocateAndGetIpForwardTableFromStack(&routeTable, FALSE, GetProcessHeap(), 0); - if (!ret) - get_interface_indices( TRUE, &table ); - if (table) { - size = sizeof(IP_ADAPTER_INFO) * table->numIndexes; - size += ipAddrTable->dwNumEntries * sizeof(IP_ADDR_STRING); - if (*pOutBufLen < size) { - *pOutBufLen = size; - ret = ERROR_INSUFFICIENT_BUFFER; - } - else { - SOCKADDR_INET *wins_servers = NULL; - DWORD ndx, wins_server_count = get_wins_servers( &wins_servers ); - PIP_ADDR_STRING nextIPAddr = (PIP_ADDR_STRING)((LPBYTE)pAdapterInfo - + numNonLoopbackInterfaces * sizeof(IP_ADAPTER_INFO)); - - memset(pAdapterInfo, 0, size); - for (ndx = 0; ndx < table->numIndexes; ndx++) { - PIP_ADAPTER_INFO ptr = &pAdapterInfo[ndx]; - DWORD i; - PIP_ADDR_STRING currentIPAddr = &ptr->IpAddressList; - BOOL firstIPAddr = TRUE; - NET_LUID luid; - GUID guid; - - /* on Win98 this is left empty, but whatever */ - ConvertInterfaceIndexToLuid(table->indexes[ndx], &luid); - ConvertInterfaceLuidToGuid(&luid, &guid); - ConvertGuidToStringA( &guid, ptr->AdapterName, ARRAY_SIZE(ptr->AdapterName) ); - getInterfaceNameByIndex(table->indexes[ndx], ptr->Description); - ptr->AddressLength = sizeof(ptr->Address); - getInterfacePhysicalByIndex(table->indexes[ndx], - &ptr->AddressLength, ptr->Address, &ptr->Type); - ptr->Index = table->indexes[ndx]; - for (i = 0; i < ipAddrTable->dwNumEntries; i++) { - if (ipAddrTable->table[i].dwIndex == ptr->Index) { - if (firstIPAddr) { - RtlIpv4AddressToStringA((IN_ADDR *)&ipAddrTable->table[i].dwAddr, - ptr->IpAddressList.IpAddress.String); - RtlIpv4AddressToStringA((IN_ADDR *)&ipAddrTable->table[i].dwMask, - ptr->IpAddressList.IpMask.String); - firstIPAddr = FALSE; - } - else { - currentIPAddr->Next = nextIPAddr; - currentIPAddr = nextIPAddr; - RtlIpv4AddressToStringA((IN_ADDR *)&ipAddrTable->table[i].dwAddr, - currentIPAddr->IpAddress.String); - RtlIpv4AddressToStringA((IN_ADDR *)&ipAddrTable->table[i].dwMask, - currentIPAddr->IpMask.String); - nextIPAddr++; - } - } - } - /* If no IP was found it probably means that the interface is not - * configured. In this case we have to return a zeroed IP and mask. */ - if (firstIPAddr) { - strcpy(ptr->IpAddressList.IpAddress.String, "0.0.0.0"); - strcpy(ptr->IpAddressList.IpMask.String, "0.0.0.0"); - } - /* Find first router through this interface, which we'll assume - * is the default gateway for this adapter */ - strcpy(ptr->GatewayList.IpAddress.String, "0.0.0.0"); - strcpy(ptr->GatewayList.IpMask.String, "255.255.255.255"); - for (i = 0; i < routeTable->dwNumEntries; i++) - if (routeTable->table[i].dwForwardIfIndex == ptr->Index - && routeTable->table[i].u1.ForwardType == - MIB_IPROUTE_TYPE_INDIRECT) - { - RtlIpv4AddressToStringA((IN_ADDR *)&routeTable->table[i].dwForwardNextHop, - ptr->GatewayList.IpAddress.String); - RtlIpv4AddressToStringA((IN_ADDR *)&routeTable->table[i].dwForwardMask, - ptr->GatewayList.IpMask.String); - } - if (wins_server_count) - { - ptr->HaveWins = TRUE; - RtlIpv4AddressToStringA( &wins_servers[0].Ipv4.sin_addr, ptr->PrimaryWinsServer.IpAddress.String ); - if (wins_server_count > 1) - RtlIpv4AddressToStringA( &wins_servers[1].Ipv4.sin_addr, ptr->SecondaryWinsServer.IpAddress.String ); - } - if (ndx < table->numIndexes - 1) - ptr->Next = &pAdapterInfo[ndx + 1]; - else - ptr->Next = NULL; - - ptr->DhcpEnabled = TRUE; + TRACE( "info %p, size %p\n", info, size ); + if (!size) return ERROR_INVALID_PARAMETER; + + err = NsiAllocateAndGetTable( 1, &NPI_MS_NDIS_MODULEID, NSI_NDIS_IFINFO_TABLE, + (void **)&if_keys, sizeof(*if_keys), (void **)&if_rw, sizeof(*if_rw), + (void **)&if_dyn, sizeof(*if_dyn), (void **)&if_stat, sizeof(*if_stat), &if_count, 0 ); + if (err) return err; + for (i = 0; i < if_count; i++) + { + if (if_stat[i].type == IF_TYPE_SOFTWARE_LOOPBACK) continue; + if_num++; + } + + if (!if_num) + { + err = ERROR_NO_DATA; + goto err; + } + + err = NsiAllocateAndGetTable( 1, &NPI_MS_IPV4_MODULEID, NSI_IP_UNICAST_TABLE, + (void **)&uni_keys, sizeof(*uni_keys), (void **)&uni_rw, sizeof(*uni_rw), + NULL, 0, NULL, 0, &uni_count, 0 ); + if (err) goto err; + + /* Slightly overestimate the needed size by assuming that all + unicast addresses require a separate IP_ADDR_STRING. */ + + needed = if_num * sizeof(*info) + uni_count * sizeof(IP_ADDR_STRING); + if (!info || *size < needed) + { + *size = needed; + err = ERROR_BUFFER_OVERFLOW; + goto err; + } + + err = NsiAllocateAndGetTable( 1, &NPI_MS_IPV4_MODULEID, NSI_IP_FORWARD_TABLE, + (void **)&fwd_keys, sizeof(*fwd_keys), NULL, 0, + NULL, 0, NULL, 0, &fwd_count, 0 ); + if (err) goto err; + + wins_server_count = get_wins_servers( &wins_servers ); + + extra_ip_addrs = (IP_ADDR_STRING *)(info + if_num); + for (i = 0; i < if_count; i++) + { + if (if_stat[i].type == IF_TYPE_SOFTWARE_LOOPBACK) continue; + + info->Next = info + 1; + info->ComboIndex = 0; + ConvertGuidToStringA( &if_stat[i].if_guid, info->AdapterName, sizeof(info->AdapterName) ); + len = WideCharToMultiByte( CP_ACP, 0, if_stat[i].descr.String, if_stat[i].descr.Length / sizeof(WCHAR), + info->Description, sizeof(info->Description) - 1, NULL, NULL ); + info->Description[len] = '\0'; + info->AddressLength = if_rw[i].phys_addr.Length; + if (info->AddressLength > sizeof(info->Address)) info->AddressLength = 0; + memcpy( info->Address, if_rw[i].phys_addr.Address, info->AddressLength ); + memset( info->Address + info->AddressLength, 0, sizeof(info->Address) - info->AddressLength ); + info->Index = if_stat[i].if_index; + info->Type = if_stat[i].type; + info->DhcpEnabled = TRUE; /* FIXME */ + info->CurrentIpAddress = NULL; + + cursor = NULL; + for (uni = 0; uni < uni_count; uni++) + { + if (uni_keys[uni].luid.Value != if_keys[i].Value) continue; + if (!cursor) cursor = &info->IpAddressList; + else + { + cursor->Next = extra_ip_addrs++; + cursor = cursor->Next; } - heap_free( wins_servers ); - ret = NO_ERROR; - } - HeapFree(GetProcessHeap(), 0, table); + ConvertLengthToIpv4Mask( uni_rw[uni].on_link_prefix, &mask.WS_s_addr ); + ip_addr_string_init( cursor, &uni_keys[uni].addr, &mask, 0 ); } - else - ret = ERROR_OUTOFMEMORY; - HeapFree(GetProcessHeap(), 0, routeTable); - HeapFree(GetProcessHeap(), 0, ipAddrTable); - } + if (!cursor) + { + mask.WS_s_addr = INADDR_ANY; + ip_addr_string_init( &info->IpAddressList, &mask, &mask, 0 ); + } + + gw.WS_s_addr = INADDR_ANY; + mask.WS_s_addr = INADDR_NONE; + for (fwd = 0; fwd < fwd_count; fwd++) + { /* find the first router on this interface */ + if (fwd_keys[fwd].luid.Value == if_keys[i].Value && + fwd_keys[fwd].next_hop.WS_s_addr != INADDR_ANY && + !fwd_keys[fwd].prefix_len) + { + gw = fwd_keys[fwd].next_hop; + break; + } + } + ip_addr_string_init( &info->GatewayList, &gw, &mask, 0 ); + + ip_addr_string_init( &info->DhcpServer, NULL, NULL, 0 ); + + info->HaveWins = !!wins_server_count; + ip_addr_string_init( &info->PrimaryWinsServer, NULL, NULL, 0 ); + ip_addr_string_init( &info->SecondaryWinsServer, NULL, NULL, 0 ); + if (info->HaveWins) + { + mask.WS_s_addr = INADDR_NONE; + ip_addr_string_init( &info->PrimaryWinsServer, &wins_servers[0].Ipv4.sin_addr, &mask, 0 ); + if (wins_server_count > 1) + ip_addr_string_init( &info->SecondaryWinsServer, &wins_servers[1].Ipv4.sin_addr, &mask, 0 ); + } + + info->LeaseObtained = 0; + info->LeaseExpires = 0; + + info++; } - else - ret = ERROR_NO_DATA; - } - TRACE("returning %d\n", ret); - return ret; + info[-1].Next = NULL; + +err: + heap_free( wins_servers ); + NsiFreeTable( fwd_keys, NULL, NULL, NULL ); + NsiFreeTable( uni_keys, uni_rw, NULL, NULL ); + NsiFreeTable( if_keys, if_rw, if_dyn, if_stat ); + return err; } static DWORD typeFromMibType(DWORD mib_type) -- 2.23.0
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Huw Davies