3 * - Stack Initialisation
6 #define VERSION VER2(0,10)
11 #include <tpl_drv_common.h>
12 #include <tpl_drv_network.h>
15 //! Default timeout value, 30 seconds
16 #define DEFAULT_TIMEOUT (30*1000)
19 extern int ARP_Initialise();
20 extern void UDP_Initialise();
21 extern void TCP_Initialise();
22 extern int IPv4_Initialise();
23 extern int IPv4_Ping(tInterface *Iface, tIPv4 Addr);
26 int IPStack_Install(char **Arguments);
27 int IPStack_IOCtlRoot(tVFS_Node *Node, int ID, void *Data);
28 char *IPStack_Root_ReadDir(tVFS_Node *Node, int Pos);
29 tVFS_Node *IPStack_Root_FindDir(tVFS_Node *Node, char *Name);
30 int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data);
31 int IPStack_AddInterface(char *Device);
32 tAdapter *IPStack_GetAdapter(char *Path);
33 char *IPStack_Iface_ReadDir(tVFS_Node *Node, int Pos);
34 tVFS_Node *IPStack_Iface_FindDir(tVFS_Node *Node, char *Name);
35 int IPStack_Iface_IOCtl(tVFS_Node *Node, int ID, void *Data);
38 MODULE_DEFINE(0, VERSION, IPStack, IPStack_Install, NULL, NULL);
39 tDevFS_Driver gIP_DriverInfo = {
42 .Size = 0, // Number of interfaces
44 .ACLs = &gVFS_ACL_EveryoneRX,
45 .Flags = VFS_FFLAG_DIRECTORY,
46 .ReadDir = IPStack_Root_ReadDir,
47 .FindDir = IPStack_Root_FindDir,
48 .IOCtl = IPStack_Root_IOCtl
51 tSpinlock glIP_Interfaces = 0;
52 tInterface *gIP_Interfaces = NULL;
53 tInterface *gIP_Interfaces_Last = NULL;
54 int giIP_NextIfaceId = 1;
55 tSpinlock glIP_Adapters = 0;
56 tAdapter *gIP_Adapters = NULL;
57 tSocketFile *gIP_FileTemplates;
61 * \fn int IPStack_Install(char **Arguments)
62 * \brief Intialise the relevant parts of the stack and register with DevFS
64 int IPStack_Install(char **Arguments)
76 // Parse module arguments
77 for( i = 0; Arguments[i]; i++ )
79 //if(strcmp(Arguments[i], "Device") == '=') {
85 DevFS_AddDevice( &gIP_DriverInfo );
91 * \brief Adds a file to the socket list
93 int IPStack_AddFile(tSocketFile *File)
95 Log("IPStack_AddFile: %s", File->Name);
96 File->Next = gIP_FileTemplates;
97 gIP_FileTemplates = File;
102 * \brief Read from the IP Stack's Device Directory
104 char *IPStack_Root_ReadDir(tVFS_Node *Node, int Pos)
108 ENTER("pNode iPos", Node, Pos);
111 for( iface = gIP_Interfaces; iface && Pos--; iface = iface->Next ) ;
113 // Did we run off the end?
122 Pos = iface->Node.ImplInt;
128 name[0] = '0' + Pos/10;
129 name[1] = '0' + Pos%10;
133 name[0] = '0' + Pos/100;
134 name[1] = '0' + (Pos/10)%10;
135 name[2] = '0' + Pos%10;
140 // Return the pre-generated name
145 * \brief Get the node of an interface
147 tVFS_Node *IPStack_Root_FindDir(tVFS_Node *Node, char *Name)
152 ENTER("pNode sName", Node, Name);
155 while('0' <= Name[i] && Name[i] <= '9')
158 num += Name[i] - '0';
161 if(Name[i] != '\0') {
166 for( iface = gIP_Interfaces; iface; iface = iface->Next )
168 if( iface->Node.ImplInt == num )
170 LEAVE('p', &iface->Node);
178 static const char *casIOCtls_Root[] = { DRV_IOCTLNAMES, "add_interface", NULL };
180 * \brief Handles IOCtls for the IPStack root
182 int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data)
185 ENTER("pNode iID pData", Node, ID, Data);
189 // --- Standard IOCtls (0-3) ---
191 LEAVE('i', DRV_TYPE_MISC);
192 return DRV_TYPE_MISC;
194 case DRV_IOCTL_IDENT:
195 tmp = ModUtil_SetIdent(Data, "IPStack");
199 case DRV_IOCTL_VERSION:
203 case DRV_IOCTL_LOOKUP:
204 tmp = ModUtil_LookupString( (char**)casIOCtls_Root, (char*)Data );
210 * - Adds a new IP interface and binds it to a device
213 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
214 if( !CheckString( Data ) ) LEAVE_RET('i', -1);
215 tmp = IPStack_AddInterface(Data);
223 * \brief Read from an interface's directory
225 char *IPStack_Iface_ReadDir(tVFS_Node *Node, int Pos)
227 tSocketFile *file = gIP_FileTemplates;
228 while(Pos-- && file) {
229 Log("IPStack_Iface_ReadDir: %s", file->Name);
233 if(!file) return NULL;
235 return strdup(file->Name);
239 * \brief Gets a named node from an interface directory
241 tVFS_Node *IPStack_Iface_FindDir(tVFS_Node *Node, char *Name)
243 tSocketFile *file = gIP_FileTemplates;
245 // Get file definition
246 for(;file;file = file->Next)
248 if( strcmp(file->Name, Name) == 0 ) break;
249 Log("IPStack_Iface_FindDir: strcmp('%s', '%s')", file->Name, Name);
251 if(!file) return NULL;
254 return file->Init(Node->ImplPtr);
258 * \brief Names for interface IOCtl Calls
260 static const char *casIOCtls_Iface[] = {
263 "get_address", "set_address",
265 "get_gateway", "set_gateway",
270 * \brief Handles IOCtls for the IPStack interfaces
272 int IPStack_Iface_IOCtl(tVFS_Node *Node, int ID, void *Data)
275 tInterface *iface = (tInterface*)Node->ImplPtr;
276 ENTER("pNode iID pData", Node, ID, Data);
280 // --- Standard IOCtls (0-3) ---
282 LEAVE('i', DRV_TYPE_MISC);
283 return DRV_TYPE_MISC;
285 case DRV_IOCTL_IDENT:
286 tmp = ModUtil_SetIdent(Data, STR(IDENT));
290 case DRV_IOCTL_VERSION:
294 case DRV_IOCTL_LOOKUP:
295 tmp = ModUtil_LookupString( (char**)casIOCtls_Iface, (char*)Data );
301 * - Get/Set the interface type
308 if( Threads_GetUID() != 0 ) {
309 LOG("Attempt by non-root to alter an interface (%i)", Threads_GetUID());
313 if( !CheckMem( Data, sizeof(int) ) ) {
314 LOG("Invalid pointer %p", Data);
318 switch( *(int*)Data )
322 memset(&iface->IP6, 0, sizeof(tIPv6)); // Clear address
326 memset(&iface->IP4, 0, sizeof(tIPv4));
330 memset(&iface->IP6, 0, sizeof(tIPv6));
337 LEAVE('i', iface->Type);
342 * - Get the interface's address
347 case 0: LEAVE_RET('i', 1);
349 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
350 memcpy( Data, &iface->IP4.Address, sizeof(tIPv4) );
353 if( !CheckMem( Data, sizeof(tIPv6) ) ) LEAVE_RET('i', -1);
354 memcpy( Data, &iface->IP6.Address, sizeof(tIPv6) );
361 * - Get the interface's address
364 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
367 case 0: LEAVE_RET('i', 1);
369 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
370 iface->Type = 0; // One very hacky mutex/trash protector
371 memcpy( &iface->IP4.Address, Data, sizeof(tIPv4) );
375 if( !CheckMem( Data, sizeof(tIPv6) ) ) LEAVE_RET('i', -1);
377 memcpy( &iface->IP6.Address, Data, sizeof(tIPv6) );
385 * - Get/Set the bits in the address subnet
391 switch( iface->Type )
393 case 4: LEAVE_RET('i', iface->IP4.SubnetBits);
394 case 6: LEAVE_RET('i', iface->IP6.SubnetBits);
395 default: LEAVE_RET('i', 0);
400 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
401 if( !CheckMem(Data, sizeof(int)) ) LEAVE_RET('i', -1);
403 // Check and set the subnet bits
404 switch( iface->Type )
407 if( *(int*)Data < 0 || *(int*)Data > 31 ) LEAVE_RET('i', -1);
408 iface->IP4.SubnetBits = *(int*)Data;
409 LEAVE_RET('i', iface->IP4.SubnetBits);
411 if( *(int*)Data < 0 || *(int*)Data > 127 ) LEAVE_RET('i', -1);
412 iface->IP6.SubnetBits = *(int*)Data;
413 LEAVE_RET('i', iface->IP6.SubnetBits);
423 * - Get the interface's IPv4 gateway
431 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
432 memcpy( Data, &iface->IP4.Gateway, sizeof(tIPv4) );
442 * - Get/Set the interface's IPv4 gateway
445 if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
452 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
453 iface->Type = 0; // One very hacky mutex/trash protector
454 memcpy( &iface->IP4.Gateway, Data, sizeof(tIPv4) );
465 * - Send an ICMP Echo
474 if( !CheckMem( Data, sizeof(tIPv4) ) ) LEAVE_RET('i', -1);
475 tmp = IPv4_Ping(iface, *(tIPv4*)Data);
492 * \fn int IPStack_AddInterface(char *Device)
493 * \brief Adds an interface to the list
495 int IPStack_AddInterface(char *Device)
499 ENTER("sDevice", Device);
501 iface = malloc(sizeof(tInterface));
504 return -2; // Return ERR_MYBAD
508 iface->Type = 0; // Unset type
511 iface->Node.ImplPtr = iface;
512 iface->Node.ImplInt = giIP_NextIfaceId++;
513 iface->Node.Flags = VFS_FFLAG_DIRECTORY;
514 iface->Node.Size = -1;
515 iface->Node.NumACLs = 1;
516 iface->Node.ACLs = &gVFS_ACL_EveryoneRX;
517 iface->Node.ReadDir = IPStack_Iface_ReadDir;
518 iface->Node.FindDir = IPStack_Iface_FindDir;
519 iface->Node.IOCtl = IPStack_Iface_IOCtl;
522 iface->TimeoutDelay = DEFAULT_TIMEOUT;
524 // Get adapter handle
525 iface->Adapter = IPStack_GetAdapter(Device);
526 if( !iface->Adapter ) {
529 return -1; // Return ERR_YOUFAIL
533 LOCK( &glIP_Interfaces );
534 if( gIP_Interfaces ) {
535 gIP_Interfaces_Last->Next = iface;
536 gIP_Interfaces_Last = iface;
539 gIP_Interfaces = iface;
540 gIP_Interfaces_Last = iface;
542 RELEASE( &glIP_Interfaces );
544 gIP_DriverInfo.RootNode.Size ++;
547 LEAVE('i', iface->Node.ImplInt);
548 return iface->Node.ImplInt;
552 * \fn tAdapter *IPStack_GetAdapter(char *Path)
553 * \brief Gets/opens an adapter given the path
555 tAdapter *IPStack_GetAdapter(char *Path)
560 ENTER("sPath", Path);
562 LOCK( &glIP_Adapters );
564 // Check if this adapter is already open
565 for( dev = gIP_Adapters; dev; dev = dev->Next )
567 if( strcmp(dev->Device, Path) == 0 ) {
569 RELEASE( &glIP_Adapters );
575 // Ok, so let's open it
576 dev = malloc( sizeof(tAdapter) + strlen(Path) + 1 );
578 RELEASE( &glIP_Adapters );
584 strcpy( dev->Device, Path );
588 dev->DeviceFD = VFS_Open( dev->Device, VFS_OPENFLAG_READ|VFS_OPENFLAG_WRITE );
589 if( dev->DeviceFD == -1 ) {
591 RELEASE( &glIP_Adapters );
596 // Check that it is a network interface
597 tmp = VFS_IOCtl(dev->DeviceFD, 0, NULL);
598 LOG("Device type = %i", tmp);
599 if( tmp != DRV_TYPE_NETWORK ) {
600 Warning("IPStack_GetAdapter: '%s' is not a network interface", dev->Device);
601 VFS_Close( dev->DeviceFD );
603 RELEASE( &glIP_Adapters );
609 VFS_IOCtl(dev->DeviceFD, NET_IOCTL_GETMAC, &dev->MacAddr);
612 dev->Next = gIP_Adapters;
615 RELEASE( &glIP_Adapters );
618 Link_WatchDevice( dev );