drivers/net/tcpip/tcpip/info.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS TCP/IP protocol driver
   4  * FILE:        tcpip/info.c
   5  * PURPOSE:     TDI query and set information routines
   6  * PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
   7  * REVISIONS:
   8  *   CSH 01/08-2000 Created
   9  */
  10 #include <tcpip.h>
  11 #include <info.h>
  12 #include <routines.h>
  13
  14
  15 TDI_STATUS IPTdiQueryInformationEx(
  16     PTDI_REQUEST Request,
  17     TDIObjectID *ID,
  18     PNDIS_BUFFER Buffer,
  19     PUINT BufferSize,
  20     PVOID Context)
  21 /*
  22  * FUNCTION: Returns extended information about network layer
  23  * ARGUMENTS:
  24  *     Request    = Pointer to TDI request structure for the request
  25  *     ID         = TDI object ID
  26  *     Buffer     = Pointer to buffer with data to use.
  27  *     BufferSize = Pointer to buffer with size of Buffer. On return
  28  *                  this is filled with number of bytes returned
  29  *     Context    = Pointer to context buffer
  30  * RETURNS:
  31  *     Status of operation
  32  */
  33 {
  34     PLIST_ENTRY CurrentIFEntry;
  35     PLIST_ENTRY CurrentADEEntry;
  36     PIP_INTERFACE CurrentIF;
  37     PADDRESS_ENTRY CurrentADE;
  38     IPADDR_ENTRY IpAddress;
  39     IPSNMP_INFO SnmpInfo;
  40     ULONG Temp;
  41     UINT Count;
  42     ULONG Entity;
  43     KIRQL OldIrql;
  44     UINT BufSize = *BufferSize;
  45
  46     /* Make return parameters consistent every time */
  47     *BufferSize = 0;
  48
  49     Entity = ID->toi_entity.tei_entity;
  50     if (Entity != CL_NL_ENTITY) {
  51         /* We can't handle this entity */
  52         return TDI_INVALID_PARAMETER;
  53     }
  54
  55     if (ID->toi_entity.tei_instance != TL_INSTANCE)
  56         /* We only support a single instance */
  57         return TDI_INVALID_REQUEST;
  58     if (ID->toi_class == INFO_CLASS_GENERIC) {
  59         if (ID->toi_type == INFO_TYPE_PROVIDER &&
  60             ID->toi_id == ENTITY_TYPE_ID) {
  61
  62             if (BufSize < sizeof(ULONG))
  63                 return TDI_BUFFER_TOO_SMALL;
  64             Temp = CL_NL_IP;
  65
  66             Count = CopyBufferToBufferChain(Buffer, 0, (PUCHAR)&Temp, sizeof(ULONG));
  67
  68             return TDI_SUCCESS;
  69         }
  70         return TDI_INVALID_PARAMETER;
  71     }
  72
  73     if (ID->toi_class == INFO_CLASS_PROTOCOL) {
  74         if (ID->toi_type != INFO_TYPE_PROVIDER)
  75             return TDI_INVALID_PARAMETER;
  76
  77         switch (ID->toi_id) {
  78         case IP_MIB_ADDRTABLE_ENTRY_ID:
  79             Temp = 0;
  80
  81             KeAcquireSpinLock(&InterfaceListLock, &OldIrql);
  82
  83             CurrentIFEntry = InterfaceListHead.Flink;
  84             while (CurrentIFEntry != &InterfaceListHead) {
  85                     CurrentIF = CONTAINING_RECORD(CurrentIFEntry, IP_INTERFACE, ListEntry);
  86
  87                 if (Temp + sizeof(IPADDR_ENTRY) > BufSize) {
  88                     KeReleaseSpinLock(&InterfaceListLock, OldIrql);
  89                     return TDI_BUFFER_TOO_SMALL;
  90                 }
  91
  92                 IpAddress.Addr      = 0;
  93                 IpAddress.BcastAddr = 0;
  94                 IpAddress.Mask      = 0;
  95
  96                 /* Locate the diffrent addresses and put them the right place */
  97                 CurrentADEEntry = CurrentIF->ADEListHead.Flink;
  98                 while (CurrentADEEntry != &CurrentIF->ADEListHead) {
  99                         CurrentADE = CONTAINING_RECORD(CurrentADEEntry, ADDRESS_ENTRY, ListEntry);
 100
 101                     switch (CurrentADE->Type) {
 102                     case ADE_UNICAST:
 103                         IpAddress.Addr = CurrentADE->Address->Address.IPv4Address;
 104                         break;
 105                     case ADE_MULTICAST:
 106                         IpAddress.BcastAddr = CurrentADE->Address->Address.IPv4Address;
 107                         break;
 108                     case ADE_ADDRMASK:
 109                         IpAddress.Mask = CurrentADE->Address->Address.IPv4Address;
 110                         break;
 111                     default:
 112                         /* Should not happen */
 113                         TI_DbgPrint(MIN_TRACE, ("Unknown address entry type (0x%X)\n", CurrentADE->Type));
 114                         break;
 115                     }
 116                     CurrentADEEntry = CurrentADEEntry->Flink;
 117                 }
 118                 /* Pack the address information into IPADDR_ENTRY structure */
 119                 IpAddress.Index     = 0;
 120                 IpAddress.ReasmSize = 0;
 121                 IpAddress.Context   = 0;
 122                 IpAddress.Pad       = 0;
 123
 124                 Count = CopyBufferToBufferChain(Buffer, Temp, (PUCHAR)&IpAddress, sizeof(IPADDR_ENTRY));
 125
 126                 Temp += sizeof(IPADDR_ENTRY);
 127
 128                 CurrentIFEntry = CurrentIFEntry->Flink;
 129             }
 130
 131             KeReleaseSpinLock(&InterfaceListLock, OldIrql);
 132
 133             return TDI_SUCCESS;
 134
 135         case IP_MIB_STATS_ID:
 136             if (BufSize < sizeof(IPSNMP_INFO))
 137                 return TDI_BUFFER_TOO_SMALL;
 138
 139             RtlZeroMemory(&SnmpInfo, sizeof(IPSNMP_INFO));
 140
 141             /* Count number of addresses */
 142             Count = 0;
 143             KeAcquireSpinLock(&InterfaceListLock, &OldIrql);
 144
 145             CurrentIFEntry = InterfaceListHead.Flink;
 146             while (CurrentIFEntry != &InterfaceListHead) {
 147                     CurrentIF = CONTAINING_RECORD(CurrentIFEntry, IP_INTERFACE, ListEntry);
 148                 Count++;
 149                 CurrentIFEntry = CurrentIFEntry->Flink;
 150             }
 151
 152             KeReleaseSpinLock(&InterfaceListLock, OldIrql);
 153
 154             SnmpInfo.NumAddr = Count;
 155
 156             Count = CopyBufferToBufferChain(Buffer, 0, (PUCHAR)&SnmpInfo, sizeof(IPSNMP_INFO));
 157
 158             return TDI_SUCCESS;
 159
 160         default:
 161             /* We can't handle this ID */
 162             return TDI_INVALID_PARAMETER;
 163         }
 164     }
 165
 166     return TDI_INVALID_PARAMETER;
 167 }
 168
 169
 170 TDI_STATUS InfoTdiQueryInformationEx(
 171     PTDI_REQUEST Request,
 172     TDIObjectID *ID,
 173     PNDIS_BUFFER Buffer,
 174     PUINT BufferSize,
 175     PVOID Context)
 176 /*
 177  * FUNCTION: Returns extended information
 178  * ARGUMENTS:
 179  *     Request    = Pointer to TDI request structure for the request
 180  *     ID         = TDI object ID
 181  *     Buffer     = Pointer to buffer with data to use
 182  *     BufferSize = Pointer to buffer with size of Buffer. On return
 183  *                  this is filled with number of bytes returned
 184  *     Context    = Pointer to context buffer
 185  * RETURNS:
 186  *     Status of operation
 187  */
 188 {
 189     PLIST_ENTRY CurrentADFEntry;
 190     PADDRESS_FILE CurrentADF;
 191     ADDRESS_INFO Info;
 192     KIRQL OldIrql;
 193     UINT Entity;
 194     UINT Count;
 195     UINT Size;
 196     ULONG Temp;
 197     UINT Offset = 0;
 198     UINT BufSize = *BufferSize;
 199
 200     /* Check wether it is a query for a list of entities */
 201     Entity = ID->toi_entity.tei_entity;
 202     if (Entity == GENERIC_ENTITY) {
 203         if (ID->toi_class  != INFO_CLASS_GENERIC ||
 204             ID->toi_type != INFO_TYPE_PROVIDER ||
 205             ID->toi_id != ENTITY_LIST_ID)
 206             return TDI_INVALID_PARAMETER;
 207
 208         *BufferSize = 0;
 209
 210         Size = EntityCount * sizeof(TDIEntityID);
 211         if (BufSize < Size)
 212             /* The buffer is too small to contain requested data */
 213             return TDI_BUFFER_TOO_SMALL;
 214
 215         /* Return entity list */
 216         Count = CopyBufferToBufferChain(Buffer, 0, (PUCHAR)EntityList, Size);
 217
 218         *BufferSize = Size;
 219
 220         return TDI_SUCCESS;
 221     }
 222
 223     if ((Entity != CL_TL_ENTITY) && (Entity != CO_TL_ENTITY)) {
 224         /* We can't handle this entity, pass it on */
 225         return IPTdiQueryInformationEx(
 226             Request, ID, Buffer, BufferSize, Context);
 227     }
 228
 229     /* Make return parameters consistent every time */
 230     *BufferSize = 0;
 231
 232     if (ID->toi_entity.tei_instance != TL_INSTANCE)
 233         /* We only support a single instance */
 234         return TDI_INVALID_REQUEST;
 235
 236     if (ID->toi_class == INFO_CLASS_GENERIC) {
 237
 238         if (ID->toi_type != INFO_TYPE_PROVIDER ||
 239             ID->toi_id != ENTITY_TYPE_ID)
 240             return TDI_INVALID_PARAMETER;
 241
 242         if (BufSize < sizeof(ULONG))
 243             return TDI_BUFFER_TOO_SMALL;
 244
 245         if (Entity == CL_TL_ENTITY)
 246             Temp = CL_TL_UDP;
 247         else if (Entity == CO_TL_ENTITY)
 248             Temp = CO_TL_TCP;
 249         else
 250             return TDI_INVALID_PARAMETER;
 251
 252         Count = CopyBufferToBufferChain(Buffer, 0, (PUCHAR)&Temp, sizeof(ULONG));
 253
 254         return TDI_SUCCESS;
 255     }
 256
 257     if (ID->toi_class == INFO_CLASS_PROTOCOL) {
 258
 259         if (ID->toi_type != INFO_TYPE_PROVIDER)
 260             return TDI_INVALID_PARAMETER;
 261
 262         switch (ID->toi_id) {
 263         case UDP_MIB_STAT_ID:
 264             if (Entity != CL_TL_ENTITY)
 265                 return TDI_INVALID_PARAMETER;
 266
 267             if (BufSize < sizeof(UDPStats))
 268                 return TDI_BUFFER_TOO_SMALL;
 269
 270             Count = CopyBufferToBufferChain(Buffer, 0, (PUCHAR)&UDPStats, sizeof(UDP_STATISTICS));
 271
 272             return TDI_SUCCESS;
 273
 274         case UDP_MIB_TABLE_ID:
 275             if (Entity != CL_TL_ENTITY)
 276                 return TDI_INVALID_PARAMETER;
 277
 278             Offset = 0;
 279
 280             KeAcquireSpinLock(&AddressFileListLock, &OldIrql);
 281
 282             CurrentADFEntry = AddressFileListHead.Flink;
 283             while (CurrentADFEntry != &AddressFileListHead) {
 284                     CurrentADF = CONTAINING_RECORD(CurrentADFEntry, ADDRESS_FILE, ListEntry);
 285
 286                 if (Offset + sizeof(ADDRESS_INFO) > BufSize) {
 287                     KeReleaseSpinLock(&AddressFileListLock, OldIrql);
 288                     *BufferSize = Offset;
 289                     return TDI_BUFFER_OVERFLOW;
 290                 }
 291
 292                 Info.LocalAddress = CurrentADF->ADE->Address->Address.IPv4Address;
 293                 Info.LocalPort    = CurrentADF->Port;
 294
 295                 Count = CopyBufferToBufferChain(Buffer, Offset, (PUCHAR)&Info, sizeof(ADDRESS_INFO));
 296
 297                 Offset += Count;
 298
 299                 CurrentADFEntry = CurrentADFEntry->Flink;
 300             }
 301
 302             KeReleaseSpinLock(&AddressFileListLock, OldIrql);
 303
 304             *BufferSize = Offset;
 305
 306             return STATUS_SUCCESS;
 307
 308         default:
 309             /* We can't handle this ID */
 310             return TDI_INVALID_PARAMETER;
 311         }
 312     }
 313
 314     return TDI_INVALID_PARAMETER;
 315 }
 316
 317
 318 TDI_STATUS InfoTdiSetInformationEx(
 319     PTDI_REQUEST Request,
 320     TDIObjectID *ID,
 321     PVOID Buffer,
 322     UINT BufferSize)
 323 /*
 324  * FUNCTION: Sets extended information
 325  * ARGUMENTS:
 326  *     Request    = Pointer to TDI request structure for the request
 327  *     ID         = Pointer to TDI object ID
 328  *     Buffer     = Pointer to buffer with data to use
 329  *     BufferSize = Size of Buffer
 330  * RETURNS:
 331  *     Status of operation
 332  */
 333 {
 334     /* FIXME: Set extended information */
 335
 336     return TDI_INVALID_REQUEST;
 337 }
 338
 339 /* EOF */