mirror of
https://github.com/reactos/reactos.git
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4f0b8d3db0
svn path=/branches/ntvdm/; revision=59241
323 lines
8.3 KiB
C
323 lines
8.3 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/dhcpcapi/dhcpcapi.c
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* PURPOSE: Client API for DHCP
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* COPYRIGHT: Copyright 2005 Art Yerkes <ayerkes@speakeasy.net>
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*/
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#include <rosdhcp.h>
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#define NDEBUG
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#include <debug.h>
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static HANDLE PipeHandle = INVALID_HANDLE_VALUE;
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DWORD APIENTRY DhcpCApiInitialize(LPDWORD Version) {
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DWORD PipeMode;
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/* Wait for the pipe to be available */
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if (WaitNamedPipeW(DHCP_PIPE_NAME, NMPWAIT_USE_DEFAULT_WAIT))
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{
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/* It's available, let's try to open it */
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PipeHandle = CreateFileW(DHCP_PIPE_NAME,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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0,
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NULL);
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/* Check if we succeeded in opening the pipe */
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if (PipeHandle == INVALID_HANDLE_VALUE)
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{
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/* We didn't */
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return GetLastError();
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}
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else
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{
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/* Change the pipe into message mode */
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PipeMode = PIPE_READMODE_MESSAGE;
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if (!SetNamedPipeHandleState(PipeHandle, &PipeMode, NULL, NULL))
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{
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/* Mode change failed */
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CloseHandle(PipeHandle);
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PipeHandle = INVALID_HANDLE_VALUE;
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return GetLastError();
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}
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else
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{
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/* We're good to go */
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*Version = 2;
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return NO_ERROR;
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}
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}
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}
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else
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{
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/* No good, we failed */
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return GetLastError();
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}
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}
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VOID APIENTRY DhcpCApiCleanup() {
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CloseHandle(PipeHandle);
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PipeHandle = INVALID_HANDLE_VALUE;
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}
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DWORD APIENTRY DhcpQueryHWInfo( DWORD AdapterIndex,
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PDWORD MediaType,
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PDWORD Mtu,
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PDWORD Speed ) {
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqQueryHWInfo;
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Req.AdapterIndex = AdapterIndex;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if (!Result)
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{
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/* Pipe transaction failed */
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return 0;
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}
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if( !Reply.Reply ) return 0;
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else {
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*MediaType = Reply.QueryHWInfo.MediaType;
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*Mtu = Reply.QueryHWInfo.Mtu;
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*Speed = Reply.QueryHWInfo.Speed;
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return 1;
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}
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}
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DWORD APIENTRY DhcpLeaseIpAddress( DWORD AdapterIndex ) {
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqLeaseIpAddress;
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Req.AdapterIndex = AdapterIndex;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if (!Result)
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{
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/* Pipe transaction failed */
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return 0;
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}
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return Reply.Reply;
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}
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DWORD APIENTRY DhcpReleaseIpAddressLease( DWORD AdapterIndex ) {
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqReleaseIpAddress;
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Req.AdapterIndex = AdapterIndex;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if (!Result)
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{
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/* Pipe transaction failed */
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return 0;
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}
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return Reply.Reply;
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}
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DWORD APIENTRY DhcpRenewIpAddressLease( DWORD AdapterIndex ) {
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqRenewIpAddress;
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Req.AdapterIndex = AdapterIndex;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if (!Result)
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{
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/* Pipe transaction failed */
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return 0;
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}
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return Reply.Reply;
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}
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DWORD APIENTRY DhcpStaticRefreshParams( DWORD AdapterIndex,
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DWORD Address,
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DWORD Netmask ) {
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqStaticRefreshParams;
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Req.AdapterIndex = AdapterIndex;
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Req.Body.StaticRefreshParams.IPAddress = Address;
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Req.Body.StaticRefreshParams.Netmask = Netmask;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if (!Result)
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{
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/* Pipe transaction failed */
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return 0;
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}
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return Reply.Reply;
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}
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/*!
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* Set new TCP/IP parameters and notify DHCP client service of this
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*
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* \param[in] ServerName
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* NULL for local machine
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*
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* \param[in] AdapterName
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* IPHLPAPI name of adapter to change
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*
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* \param[in] NewIpAddress
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* TRUE if IP address changes
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*
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* \param[in] IpAddress
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* New IP address (network byte order)
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*
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* \param[in] SubnetMask
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* New subnet mask (network byte order)
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*
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* \param[in] DhcpAction
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* 0 - don't modify
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* 1 - enable DHCP
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* 2 - disable DHCP
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*
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* \return non-zero on success
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*
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* \remarks Undocumented by Microsoft
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*/
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DWORD APIENTRY
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DhcpNotifyConfigChange(LPWSTR ServerName,
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LPWSTR AdapterName,
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BOOL NewIpAddress,
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DWORD IpIndex,
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DWORD IpAddress,
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DWORD SubnetMask,
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int DhcpAction)
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{
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DbgPrint("DHCPCSVC: DhcpNotifyConfigChange not implemented yet\n");
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return 0;
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}
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/*!
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* Get DHCP info for an adapter
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*
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* \param[in] AdapterIndex
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* Index of the adapter (iphlpapi-style) for which info is
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* requested
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*
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* \param[out] DhcpEnabled
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* Returns whether DHCP is enabled for the adapter
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*
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* \param[out] DhcpServer
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* Returns DHCP server IP address (255.255.255.255 if no
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* server reached yet), in network byte order
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*
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* \param[out] LeaseObtained
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* Returns time at which the lease was obtained
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*
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* \param[out] LeaseExpires
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* Returns time at which the lease will expire
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*
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* \return non-zero on success
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*
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* \remarks This is a ReactOS-only routine
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*/
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DWORD APIENTRY DhcpRosGetAdapterInfo( DWORD AdapterIndex,
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PBOOL DhcpEnabled,
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PDWORD DhcpServer,
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time_t *LeaseObtained,
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time_t *LeaseExpires )
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{
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COMM_DHCP_REQ Req;
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COMM_DHCP_REPLY Reply;
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DWORD BytesRead;
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BOOL Result;
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ASSERT(PipeHandle != INVALID_HANDLE_VALUE);
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Req.Type = DhcpReqGetAdapterInfo;
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Req.AdapterIndex = AdapterIndex;
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Result = TransactNamedPipe(PipeHandle,
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&Req, sizeof(Req),
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&Reply, sizeof(Reply),
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&BytesRead, NULL);
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if ( 0 != Result && 0 != Reply.Reply ) {
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*DhcpEnabled = Reply.GetAdapterInfo.DhcpEnabled;
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} else {
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*DhcpEnabled = FALSE;
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}
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if ( *DhcpEnabled ) {
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*DhcpServer = Reply.GetAdapterInfo.DhcpServer;
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*LeaseObtained = Reply.GetAdapterInfo.LeaseObtained;
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*LeaseExpires = Reply.GetAdapterInfo.LeaseExpires;
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} else {
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*DhcpServer = INADDR_NONE;
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*LeaseObtained = 0;
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*LeaseExpires = 0;
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}
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return Reply.Reply;
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}
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INT WINAPI
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DllMain(PVOID hinstDll,
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ULONG dwReason,
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PVOID reserved)
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{
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switch (dwReason)
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{
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hinstDll);
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break;
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case DLL_PROCESS_DETACH:
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break;
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}
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return TRUE;
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}
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/* EOF */
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