reactos/subsys/system/dhcp/api.c

   1 /* $Id: $
   2  *
   3  * COPYRIGHT:        See COPYING in the top level directory
   4  * PROJECT:          ReactOS kernel
   5  * FILE:             subsys/system/dhcp/api.c
   6  * PURPOSE:          DHCP client api handlers
   7  * PROGRAMMER:       arty
   8  */
   9
  10 #include <winsock2.h>
  11 #include <iphlpapi.h>
  12 #include "rosdhcp.h"
  13
  14 static CRITICAL_SECTION ApiCriticalSection;
  15
  16 VOID ApiInit() {
  17     InitializeCriticalSection( &ApiCriticalSection );
  18 }
  19
  20 VOID ApiLock() {
  21     EnterCriticalSection( &ApiCriticalSection );
  22 }
  23
  24 VOID ApiUnlock() {
  25     LeaveCriticalSection( &ApiCriticalSection );
  26 }
  27
  28 /* This represents the service portion of the DHCP client API */
  29
  30 DWORD DSLeaseIpAddress( PipeSendFunc Send, COMM_DHCP_REQ *Req ) {
  31     COMM_DHCP_REPLY Reply;
  32     PDHCP_ADAPTER Adapter;
  33
  34     ApiLock();
  35
  36     Adapter = AdapterFindIndex( Req->AdapterIndex );
  37
  38     Reply.Reply = Adapter ? 1 : 0;
  39
  40     if( Adapter ) {
  41         add_protocol( Adapter->DhclientInfo.name,
  42                       Adapter->DhclientInfo.rfdesc, got_one,
  43                       &Adapter->DhclientInfo );
  44         Adapter->DhclientInfo.client->state = S_INIT;
  45         state_reboot(&Adapter->DhclientInfo);
  46     }
  47
  48     ApiUnlock();
  49
  50     return Send( &Reply );
  51 }
  52
  53 DWORD DSQueryHWInfo( PipeSendFunc Send, COMM_DHCP_REQ *Req ) {
  54     COMM_DHCP_REPLY Reply;
  55     PDHCP_ADAPTER Adapter;
  56
  57     ApiLock();
  58
  59     Adapter = AdapterFindIndex( Req->AdapterIndex );
  60
  61     Reply.QueryHWInfo.AdapterIndex = Req->AdapterIndex;
  62     Reply.QueryHWInfo.MediaType = Adapter->IfMib.dwType;
  63     Reply.QueryHWInfo.Mtu = Adapter->IfMib.dwMtu;
  64     Reply.QueryHWInfo.Speed = Adapter->IfMib.dwSpeed;
  65
  66     ApiUnlock();
  67
  68     return Send( &Reply );
  69 }
  70
  71 DWORD DSReleaseIpAddressLease( PipeSendFunc Send, COMM_DHCP_REQ *Req ) {
  72     COMM_DHCP_REPLY Reply;
  73     PDHCP_ADAPTER Adapter;
  74
  75     ApiLock();
  76
  77     Adapter = AdapterFindIndex( Req->AdapterIndex );
  78
  79     Reply.Reply = Adapter ? 1 : 0;
  80
  81     if( Adapter ) {
  82         DeleteIPAddress( Adapter->NteContext );
  83         remove_protocol( find_protocol_by_adapter( &Adapter->DhclientInfo ) );
  84     }
  85
  86     ApiUnlock();
  87
  88     return Send( &Reply );
  89 }
  90
  91 DWORD DSRenewIpAddressLease( PipeSendFunc Send, COMM_DHCP_REQ *Req ) {
  92     COMM_DHCP_REPLY Reply;
  93     PDHCP_ADAPTER Adapter;
  94
  95     ApiLock();
  96
  97     Adapter = AdapterFindIndex( Req->AdapterIndex );
  98
  99     Reply.Reply = Adapter ? 1 : 0;
 100
 101     if( !Adapter || Adapter->DhclientState.state != S_BOUND ) {
 102         Reply.Reply = 0;
 103         return Send( &Reply );
 104     }
 105
 106     Adapter->DhclientState.state = S_BOUND;
 107
 108     send_discover( &Adapter->DhclientInfo );
 109     state_bound( &Adapter->DhclientInfo );
 110
 111     ApiUnlock();
 112
 113     return Send( &Reply );
 114 }
 115
 116 DWORD DSStaticRefreshParams( PipeSendFunc Send, COMM_DHCP_REQ *Req ) {
 117     NTSTATUS Status;
 118     COMM_DHCP_REPLY Reply;
 119     PDHCP_ADAPTER Adapter;
 120
 121     ApiLock();
 122
 123     Adapter = AdapterFindIndex( Req->AdapterIndex );
 124
 125     Reply.Reply = Adapter ? 1 : 0;
 126
 127     if( Adapter ) {
 128         DeleteIPAddress( Adapter->NteContext );
 129         Adapter->DhclientState.state = S_STATIC;
 130         remove_protocol( find_protocol_by_adapter( &Adapter->DhclientInfo ) );
 131         Status = AddIPAddress( Req->Body.StaticRefreshParams.IPAddress,
 132                                Req->Body.StaticRefreshParams.Netmask,
 133                                Req->AdapterIndex,
 134                                &Adapter->NteContext,
 135                                &Adapter->NteInstance );
 136         Reply.Reply = NT_SUCCESS(Status);
 137     }
 138
 139     ApiUnlock();
 140
 141     return Send( &Reply );
 142 }