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;
147 for( iface = gIP_Interfaces; iface; iface = iface->Next )
149 if( strcmp(iface->Name, Name) == 0 )
151 LEAVE('p', &iface->Node);
160 static const char *casIOCtls_Root[] = { DRV_IOCTLNAMES, "add_interface", NULL };
162 * \brief Handles IOCtls for the IPStack root
164 int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data)
167 ENTER("pNode iID pData", Node, ID, Data);
171 // --- Standard IOCtls (0-3) ---
172 BASE_IOCTLS(DRV_TYPE_MISC, "IPStack", VERSION, casIOCtls_Root)
176 * - Adds a new IP interface and binds it to a device
179 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
180 if( !CheckString( Data ) ) LEAVE_RET('i', -1);
183 tInterface *iface = IPStack_AddInterface(Data, name);
184 tmp = iface->Node.ImplInt;
193 * \fn tInterface *IPStack_AddInterface(char *Device)
194 * \brief Adds an interface to the list
196 tInterface *IPStack_AddInterface(const char *Device, const char *Name)
202 ENTER("sDevice", Device);
204 card = IPStack_GetAdapter(Device);
207 return NULL; // ERR_YOURBAD
210 nameLen = sprintf(NULL, "%i", giIP_NextIfaceId);
215 + IPStack_GetAddressSize(-1)*3 // Address, Route->Network, Route->NextHop
218 Log_Warning("IPStack", "AddInterface - malloc() failed");
220 return NULL; // Return ERR_MYBAD
224 iface->Type = 0; // Unset type
225 iface->Address = iface->Name + nameLen + 1; // Address
226 iface->Route.Network = iface->Address + IPStack_GetAddressSize(-1);
227 iface->Route.NextHop = iface->Route.Network + IPStack_GetAddressSize(-1);
230 iface->Node.ImplPtr = iface;
231 iface->Node.Flags = VFS_FFLAG_DIRECTORY;
232 iface->Node.Size = -1;
233 iface->Node.NumACLs = 1;
234 iface->Node.ACLs = &gVFS_ACL_EveryoneRX;
235 iface->Node.ReadDir = IPStack_Iface_ReadDir;
236 iface->Node.FindDir = IPStack_Iface_FindDir;
237 iface->Node.IOCtl = IPStack_Iface_IOCtl;
238 iface->Node.MkNod = NULL;
239 iface->Node.Link = NULL;
240 iface->Node.Relink = NULL;
241 iface->Node.Close = NULL;
244 iface->TimeoutDelay = DEFAULT_TIMEOUT;
246 // Get adapter handle
247 iface->Adapter = card;
249 // Delay setting ImplInt until after the adapter is opened
250 // Keeps things simple
251 iface->Node.ImplInt = giIP_NextIfaceId++;
252 sprintf(iface->Name, "%i", iface->Node.ImplInt);
255 SHORTLOCK( &glIP_Interfaces );
256 if( gIP_Interfaces ) {
257 gIP_Interfaces_Last->Next = iface;
258 gIP_Interfaces_Last = iface;
261 gIP_Interfaces = iface;
262 gIP_Interfaces_Last = iface;
264 SHORTREL( &glIP_Interfaces );
266 // gIP_DriverInfo.RootNode.Size ++;
274 * \brief Adds a file to the socket list
276 int IPStack_AddFile(tSocketFile *File)
278 Log_Log("IPStack", "Added file '%s'", File->Name);
279 File->Next = gIP_FileTemplates;
280 gIP_FileTemplates = File;
288 * \brief Read from an interface's directory
290 char *IPStack_Iface_ReadDir(tVFS_Node *Node, int Pos)
292 tSocketFile *file = gIP_FileTemplates;
293 while(Pos-- && file) {
297 if(!file) return NULL;
299 return strdup(file->Name);
303 * \brief Gets a named node from an interface directory
305 tVFS_Node *IPStack_Iface_FindDir(tVFS_Node *Node, const char *Name)
307 tSocketFile *file = gIP_FileTemplates;
309 // Get file definition
310 for(;file;file = file->Next)
312 if( strcmp(file->Name, Name) == 0 ) break;
314 if(!file) return NULL;
317 return file->Init(Node->ImplPtr);
321 * \brief Names for interface IOCtl Calls
323 static const char *casIOCtls_Iface[] = {
326 "get_address", "set_address",
333 * \brief Handles IOCtls for the IPStack interfaces
335 int IPStack_Iface_IOCtl(tVFS_Node *Node, int ID, void *Data)
338 tInterface *iface = (tInterface*)Node->ImplPtr;
339 ENTER("pNode iID pData", Node, ID, Data);
343 // --- Standard IOCtls (0-3) ---
344 BASE_IOCTLS(DRV_TYPE_MISC, "IPStack", VERSION, casIOCtls_Iface)
348 * - Get/Set the interface type
355 if( Threads_GetUID() != 0 ) {
356 LOG("Attempt by non-root to alter an interface (%i)", Threads_GetUID());
360 if( !CheckMem( Data, sizeof(int) ) ) {
361 LOG("Invalid pointer %p", Data);
367 iface->Type = *(int*)Data;
368 size = IPStack_GetAddressSize(iface->Type);
369 // Check it's actually valid
370 if( iface->Type != 0 && size == 0 ) {
377 memset(iface->Address, 0, size);
379 LEAVE('i', iface->Type);
384 * - Get the interface's address
387 size = IPStack_GetAddressSize(iface->Type);
388 if( !CheckMem( Data, size ) ) LEAVE_RET('i', -1);
389 memcpy( Data, iface->Address, size );
395 * - Set the interface's address
398 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
400 size = IPStack_GetAddressSize(iface->Type);
401 if( !CheckMem( Data, size ) ) LEAVE_RET('i', -1);
402 // TODO: Protect against trashing
403 memcpy( iface->Address, Data, size );
409 * - Get/Set the bits in the address subnet
412 // Do we want to set the value?
415 // Are we root? (TODO: Check Owner/Group)
416 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
417 // Is the memory valid
418 if( !CheckMem(Data, sizeof(int)) ) LEAVE_RET('i', -1);
421 if( *(int*)Data < 0 || *(int*)Data > IPStack_GetAddressSize(iface->Type)*8-1 )
425 iface->SubnetBits = *(int*)Data;
427 LEAVE('i', iface->SubnetBits);
428 return iface->SubnetBits;
432 * - Gets the name of the attached device
435 if( iface->Adapter == NULL )
438 LEAVE_RET('i', iface->Adapter->DeviceLen);
439 if( !CheckMem( Data, iface->Adapter->DeviceLen+1 ) )
441 strcpy( Data, iface->Adapter->Device );
442 return iface->Adapter->DeviceLen;
446 * - Send an ICMP Echo
455 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
456 tmp = IPv4_Ping(iface, *(tIPv4*)Data);
473 * \fn tAdapter *IPStack_GetAdapter(const char *Path)
474 * \brief Gets/opens an adapter given the path
476 tAdapter *IPStack_GetAdapter(const char *Path)
481 ENTER("sPath", Path);
483 // Check for loopback
484 if( strcmp(Path, "LOOPBACK") == 0 )
486 // Initialise if required
487 if( gIP_LoopAdapter.DeviceFD == 0 )
489 dev = &gIP_LoopAdapter;
494 dev->DeviceFD = VFS_Open( "/Devices/fifo/anon", VFS_OPENFLAG_READ|VFS_OPENFLAG_WRITE );
495 if( dev->DeviceFD == -1 ) {
496 Log_Warning("IPStack", "Unable to open FIFO '/Devices/fifo/anon' for loopback");
500 dev->MacAddr.B[0] = 'A';
501 dev->MacAddr.B[1] = 'c';
502 dev->MacAddr.B[2] = 'e';
503 dev->MacAddr.B[3] = 's';
504 dev->MacAddr.B[4] = 's';
505 dev->MacAddr.B[5] = '2';
508 Link_WatchDevice( dev );
510 LEAVE('p', &gIP_LoopAdapter);
511 return &gIP_LoopAdapter;
514 Mutex_Acquire( &glIP_Adapters );
516 // Check if this adapter is already open
517 for( dev = gIP_Adapters; dev; dev = dev->Next )
519 if( strcmp(dev->Device, Path) == 0 ) {
521 Mutex_Release( &glIP_Adapters );
527 // Ok, so let's open it
528 dev = malloc( sizeof(tAdapter) + strlen(Path) + 1 );
530 Log_Warning("IPStack", "GetAdapter - malloc() failed");
531 Mutex_Release( &glIP_Adapters );
537 strcpy( dev->Device, Path );
539 dev->DeviceLen = strlen(Path);
542 dev->DeviceFD = VFS_Open( dev->Device, VFS_OPENFLAG_READ|VFS_OPENFLAG_WRITE );
543 if( dev->DeviceFD == -1 ) {
545 Mutex_Release( &glIP_Adapters );
550 // Check that it is a network interface
551 tmp = VFS_IOCtl(dev->DeviceFD, 0, NULL);
552 LOG("Device type = %i", tmp);
553 if( tmp != DRV_TYPE_NETWORK ) {
554 Log_Warning("IPStack", "IPStack_GetAdapter: '%s' is not a network interface", dev->Device);
555 VFS_Close( dev->DeviceFD );
557 Mutex_Release( &glIP_Adapters );
563 VFS_IOCtl(dev->DeviceFD, NET_IOCTL_GETMAC, &dev->MacAddr);
566 dev->Next = gIP_Adapters;
569 Mutex_Release( &glIP_Adapters );
572 Link_WatchDevice( dev );