6 #define VERSION VER2(0,10)
9 #include <tpl_drv_common.h>
10 #include <tpl_drv_network.h>
13 //! Default timeout value, 30 seconds
14 #define DEFAULT_TIMEOUT (30*1000)
17 extern int IPv4_Ping(tInterface *Iface, tIPv4 Addr);
18 //extern int IPv6_Ping(tInterface *Iface, tIPv6 Addr);
19 extern tVFS_Node gIP_RouteNode;
22 char *IPStack_Root_ReadDir(tVFS_Node *Node, int Pos);
23 tVFS_Node *IPStack_Root_FindDir(tVFS_Node *Node, const char *Name);
24 int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data);
26 int IPStack_AddFile(tSocketFile *File);
27 tInterface *IPStack_AddInterface(const char *Device, const char *Name);
28 tAdapter *IPStack_GetAdapter(const char *Path);
30 char *IPStack_Iface_ReadDir(tVFS_Node *Node, int Pos);
31 tVFS_Node *IPStack_Iface_FindDir(tVFS_Node *Node, const char *Name);
32 int IPStack_Iface_IOCtl(tVFS_Node *Node, int ID, void *Data);
35 //! Loopback (127.0.0.0/8, ::1) Pseudo-Interface
36 tInterface gIP_LoopInterface = {
38 ImplPtr: &gIP_LoopInterface,
39 Flags: VFS_FFLAG_DIRECTORY,
42 ACLs: &gVFS_ACL_EveryoneRX,
43 ReadDir: IPStack_Iface_ReadDir,
44 FindDir: IPStack_Iface_FindDir,
45 IOCtl: IPStack_Iface_IOCtl
50 tShortSpinlock glIP_Interfaces;
51 tInterface *gIP_Interfaces = NULL;
52 tInterface *gIP_Interfaces_Last = NULL;
54 tSocketFile *gIP_FileTemplates;
56 tAdapter gIP_LoopAdapter = {
61 tAdapter *gIP_Adapters = NULL;
62 int giIP_NextIfaceId = 1;
67 * \brief Read from the IP Stack's Device Directory
69 char *IPStack_Root_ReadDir(tVFS_Node *Node, int Pos)
73 ENTER("pNode iPos", Node, Pos);
78 return strdup("routes");
87 for( iface = gIP_Interfaces; iface && Pos--; iface = iface->Next ) ;
89 // Did we run off the end?
97 Log_Warning("IPStack", "IPStack_Root_ReadDir - malloc error");
103 Pos = iface->Node.ImplInt;
109 name[0] = '0' + Pos/10;
110 name[1] = '0' + Pos%10;
114 name[0] = '0' + Pos/100;
115 name[1] = '0' + (Pos/10)%10;
116 name[2] = '0' + Pos%10;
121 // Return the pre-generated name
126 * \brief Get the node of an interface
128 tVFS_Node *IPStack_Root_FindDir(tVFS_Node *Node, const char *Name)
135 ENTER("pNode sName", Node, Name);
138 if( strcmp(Name, "routes") == 0 ) {
139 return &gIP_RouteNode;
143 if( strcmp(Name, "lo") == 0 ) {
144 return &gIP_LoopInterface.Node;
149 while('0' <= Name[i] && Name[i] <= '9')
152 num += Name[i] - '0';
155 if(Name[i] != '\0') {
160 for( iface = gIP_Interfaces; iface; iface = iface->Next )
162 if( (int)iface->Node.ImplInt == num )
164 LEAVE('p', &iface->Node);
169 for( iface = gIP_Interfaces; iface; iface = iface->Next )
171 if( strcmp(iface->Name, Name) == 0 )
173 LEAVE('p', &iface->Node);
183 static const char *casIOCtls_Root[] = { DRV_IOCTLNAMES, "add_interface", NULL };
185 * \brief Handles IOCtls for the IPStack root
187 int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data)
190 ENTER("pNode iID pData", Node, ID, Data);
194 // --- Standard IOCtls (0-3) ---
195 BASE_IOCTLS(DRV_TYPE_MISC, "IPStack", VERSION, casIOCtls_Root)
199 * - Adds a new IP interface and binds it to a device
202 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
203 if( !CheckString( Data ) ) LEAVE_RET('i', -1);
206 tInterface *iface = IPStack_AddInterface(Data, name);
207 tmp = iface->Node.ImplInt;
216 * \fn tInterface *IPStack_AddInterface(char *Device)
217 * \brief Adds an interface to the list
219 tInterface *IPStack_AddInterface(const char *Device, const char *Name)
225 ENTER("sDevice", Device);
227 card = IPStack_GetAdapter(Device);
230 return NULL; // ERR_YOURBAD
233 nameLen = sprintf(NULL, "%i", giIP_NextIfaceId);
238 + IPStack_GetAddressSize(-1)*3 // Address, Route->Network, Route->NextHop
242 return NULL; // Return ERR_MYBAD
246 iface->Type = 0; // Unset type
247 iface->Address = iface->Name + nameLen + 1; // Address
248 iface->Route.Network = iface->Address + IPStack_GetAddressSize(-1);
249 iface->Route.NextHop = iface->Route.Network + IPStack_GetAddressSize(-1);
252 iface->Node.ImplPtr = iface;
253 iface->Node.Flags = VFS_FFLAG_DIRECTORY;
254 iface->Node.Size = -1;
255 iface->Node.NumACLs = 1;
256 iface->Node.ACLs = &gVFS_ACL_EveryoneRX;
257 iface->Node.ReadDir = IPStack_Iface_ReadDir;
258 iface->Node.FindDir = IPStack_Iface_FindDir;
259 iface->Node.IOCtl = IPStack_Iface_IOCtl;
260 iface->Node.MkNod = NULL;
261 iface->Node.Link = NULL;
262 iface->Node.Relink = NULL;
263 iface->Node.Close = NULL;
266 iface->TimeoutDelay = DEFAULT_TIMEOUT;
268 // Get adapter handle
269 iface->Adapter = IPStack_GetAdapter(Device);
270 if( !iface->Adapter ) {
273 return NULL; // Return ERR_YOUFAIL
276 // Delay setting ImplInt until after the adapter is opened
277 // Keeps things simple
278 iface->Node.ImplInt = giIP_NextIfaceId++;
279 sprintf(iface->Name, "%i", iface->Node.ImplInt);
282 SHORTLOCK( &glIP_Interfaces );
283 if( gIP_Interfaces ) {
284 gIP_Interfaces_Last->Next = iface;
285 gIP_Interfaces_Last = iface;
288 gIP_Interfaces = iface;
289 gIP_Interfaces_Last = iface;
291 SHORTREL( &glIP_Interfaces );
293 // gIP_DriverInfo.RootNode.Size ++;
301 * \brief Adds a file to the socket list
303 int IPStack_AddFile(tSocketFile *File)
305 Log_Log("IPStack", "Added file '%s'", File->Name);
306 File->Next = gIP_FileTemplates;
307 gIP_FileTemplates = File;
315 * \brief Read from an interface's directory
317 char *IPStack_Iface_ReadDir(tVFS_Node *Node, int Pos)
319 tSocketFile *file = gIP_FileTemplates;
320 while(Pos-- && file) {
324 if(!file) return NULL;
326 return strdup(file->Name);
330 * \brief Gets a named node from an interface directory
332 tVFS_Node *IPStack_Iface_FindDir(tVFS_Node *Node, const char *Name)
334 tSocketFile *file = gIP_FileTemplates;
336 // Get file definition
337 for(;file;file = file->Next)
339 if( strcmp(file->Name, Name) == 0 ) break;
341 if(!file) return NULL;
344 return file->Init(Node->ImplPtr);
348 * \brief Names for interface IOCtl Calls
350 static const char *casIOCtls_Iface[] = {
353 "get_address", "set_address",
360 * \brief Handles IOCtls for the IPStack interfaces
362 int IPStack_Iface_IOCtl(tVFS_Node *Node, int ID, void *Data)
365 tInterface *iface = (tInterface*)Node->ImplPtr;
366 ENTER("pNode iID pData", Node, ID, Data);
370 // --- Standard IOCtls (0-3) ---
371 BASE_IOCTLS(DRV_TYPE_MISC, "IPStack", VERSION, casIOCtls_Iface)
375 * - Get/Set the interface type
382 if( Threads_GetUID() != 0 ) {
383 LOG("Attempt by non-root to alter an interface (%i)", Threads_GetUID());
387 if( !CheckMem( Data, sizeof(int) ) ) {
388 LOG("Invalid pointer %p", Data);
394 iface->Type = *(int*)Data;
395 size = IPStack_GetAddressSize(iface->Type);
396 // Check it's actually valid
397 if( iface->Type != 0 && size == 0 ) {
404 memset(iface->Address, 0, size);
406 LEAVE('i', iface->Type);
411 * - Get the interface's address
414 size = IPStack_GetAddressSize(iface->Type);
415 if( !CheckMem( Data, size ) ) LEAVE_RET('i', -1);
416 memcpy( Data, iface->Address, size );
422 * - Set the interface's address
425 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
427 size = IPStack_GetAddressSize(iface->Type);
428 if( !CheckMem( Data, size ) ) LEAVE_RET('i', -1);
429 // TODO: Protect against trashing
430 memcpy( iface->Address, Data, size );
436 * - Get/Set the bits in the address subnet
439 // Do we want to set the value?
442 // Are we root? (TODO: Check Owner/Group)
443 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
444 // Is the memory valid
445 if( !CheckMem(Data, sizeof(int)) ) LEAVE_RET('i', -1);
448 if( *(int*)Data < 0 || *(int*)Data > IPStack_GetAddressSize(iface->Type)*8-1 )
452 iface->SubnetBits = *(int*)Data;
454 LEAVE('i', iface->SubnetBits);
455 return iface->SubnetBits;
459 * - Gets the name of the attached device
462 if( iface->Adapter == NULL )
465 LEAVE_RET('i', iface->Adapter->DeviceLen);
466 if( !CheckMem( Data, iface->Adapter->DeviceLen+1 ) )
468 strcpy( Data, iface->Adapter->Device );
469 return iface->Adapter->DeviceLen;
473 * - Send an ICMP Echo
482 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
483 tmp = IPv4_Ping(iface, *(tIPv4*)Data);
500 * \fn tAdapter *IPStack_GetAdapter(const char *Path)
501 * \brief Gets/opens an adapter given the path
503 tAdapter *IPStack_GetAdapter(const char *Path)
508 ENTER("sPath", Path);
510 // Check for loopback
511 if( strcmp(Path, "LOOPBACK") == 0 )
513 // Initialise if required
514 if( gIP_LoopAdapter.DeviceFD == 0 )
516 dev = &gIP_LoopAdapter;
521 dev->DeviceFD = VFS_Open( "/Devices/fifo/anon", VFS_OPENFLAG_READ|VFS_OPENFLAG_WRITE );
522 if( dev->DeviceFD == -1 ) {
523 Log_Warning("IPStack", "Unable to open FIFO '/Devices/fifo/anon' for loopback");
527 dev->MacAddr.B[0] = 'A';
528 dev->MacAddr.B[1] = 'c';
529 dev->MacAddr.B[2] = 'e';
530 dev->MacAddr.B[3] = 's';
531 dev->MacAddr.B[4] = 's';
532 dev->MacAddr.B[5] = '2';
535 Link_WatchDevice( dev );
537 LEAVE('p', &gIP_LoopAdapter);
538 return &gIP_LoopAdapter;
541 Mutex_Acquire( &glIP_Adapters );
543 // Check if this adapter is already open
544 for( dev = gIP_Adapters; dev; dev = dev->Next )
546 if( strcmp(dev->Device, Path) == 0 ) {
548 Mutex_Release( &glIP_Adapters );
554 // Ok, so let's open it
555 dev = malloc( sizeof(tAdapter) + strlen(Path) + 1 );
557 Mutex_Release( &glIP_Adapters );
563 strcpy( dev->Device, Path );
565 dev->DeviceLen = strlen(Path);
568 dev->DeviceFD = VFS_Open( dev->Device, VFS_OPENFLAG_READ|VFS_OPENFLAG_WRITE );
569 if( dev->DeviceFD == -1 ) {
571 Mutex_Release( &glIP_Adapters );
576 // Check that it is a network interface
577 tmp = VFS_IOCtl(dev->DeviceFD, 0, NULL);
578 LOG("Device type = %i", tmp);
579 if( tmp != DRV_TYPE_NETWORK ) {
580 Warning("IPStack_GetAdapter: '%s' is not a network interface", dev->Device);
581 VFS_Close( dev->DeviceFD );
583 Mutex_Release( &glIP_Adapters );
589 VFS_IOCtl(dev->DeviceFD, NET_IOCTL_GETMAC, &dev->MacAddr);
592 dev->Next = gIP_Adapters;
595 Mutex_Release( &glIP_Adapters );
598 Link_WatchDevice( dev );