// - Route Management
tRoute *IPStack_Route_Create(int AddrType, void *Network, int SubnetBits, int Metric);
tRoute *IPStack_AddRoute(const char *Interface, void *Network, int SubnetBits, void *NextHop, int Metric);
+tRoute *_Route_FindInterfaceRoute(int AddressType, void *Address);
tRoute *IPStack_FindRoute(int AddressType, tInterface *Interface, void *Address);
// - Individual Routes
int IPStack_Route_IOCtl(tVFS_Node *Node, int ID, void *Data);
rt = IPStack_FindRoute(type, NULL, addrData);
if(!rt) return NULL;
- if( rt->Interface )
+ if( !rt->Interface )
{
- // Return the interface node
- // - Sure it's hijacking it from inteface.c's area, but it's
- // simpler this way
- return &rt->Interface->Node;
+ LOG("Why does this route not have a node? trying to find an iface for the next hop");
+
+ rt = _Route_FindInterfaceRoute(type, rt->NextHop);
+ if(!rt) {
+ Log_Notice("Cannot find route to next hop '%s'",
+ IPStack_PrintAddress(type, rt->NextHop));
+ return NULL;
+ }
}
- else
- {
+ if( !rt->Interface ) {
+ Log_Notice("Routes", "No interface for route %p, what the?", rt);
return NULL;
}
+ // Return the interface node
+ // - Sure it's hijacking it from inteface.c's area, but it's
+ // simpler this way
+ return &rt->Interface->Node;
}
else if( Name[0] == '#' )
{
return rt;
}
+/**
+ * \brief Locates what interface should be used to get directly to an address
+ */
+tRoute *_Route_FindInterfaceRoute(int AddressType, void *Address)
+{
+ tRoute *best = NULL, *rt;
+ int addrSize = IPStack_GetAddressSize(AddressType);
+ for( tInterface *iface = gIP_Interfaces; iface; iface = iface->Next )
+ {
+ if( iface->Type != AddressType ) continue;
+
+ // Check if the address matches
+ if( !IPStack_CompareAddress(AddressType, iface->Address, Address, iface->SubnetBits) )
+ continue;
+
+ rt = &iface->Route;
+ if( !rt->Interface )
+ {
+ memcpy(rt->Network, iface->Address, addrSize);
+ memset(rt->NextHop, 0, addrSize);
+ rt->Metric = DEFAUTL_METRIC;
+ rt->SubnetBits = iface->SubnetBits;
+ rt->Interface = iface;
+ }
+
+ if( best ) {
+ // More direct routes are preferred
+ if( best->SubnetBits > rt->SubnetBits ) {
+ LOG("Skipped - less direct (%i < %i)", rt->SubnetBits, best->SubnetBits);
+ continue;
+ }
+ // If equally direct, choose the best metric
+ if( best->SubnetBits == rt->SubnetBits && best->Metric < rt->Metric ) {
+ LOG("Skipped - higher metric (%i > %i)", rt->Metric, best->Metric);
+ continue;
+ }
+ }
+
+ best = rt;
+ }
+
+ return best;
+}
+
/**
*/
tRoute *IPStack_FindRoute(int AddressType, tInterface *Interface, void *Address)
{
tRoute *rt;
tRoute *best = NULL;
- tInterface *iface;
int addrSize;
ENTER("iAddressType pInterface sAddress",
for( rt = gIP_Routes; rt; rt = rt->Next )
{
// Check interface
- if( Interface && rt->Interface != Interface ) continue;
+ if( Interface && rt->Interface && rt->Interface != Interface ) continue;
// Check address type
if( rt->AddressType != AddressType ) continue;
// Check against implicit routes
if( !best && !Interface )
{
- for( iface = gIP_Interfaces; iface; iface = iface->Next )
- {
- if( Interface && iface != Interface ) continue;
- if( iface->Type != AddressType ) continue;
-
-
- // Check if the address matches
- if( !IPStack_CompareAddress(AddressType, iface->Address, Address, iface->SubnetBits) )
- continue;
-
- if( best ) {
- // More direct routes are preferred
- if( best->SubnetBits > rt->SubnetBits ) {
- LOG("Skipped - less direct (%i < %i)", rt->SubnetBits, best->SubnetBits);
- continue;
- }
- // If equally direct, choose the best metric
- if( best->SubnetBits == rt->SubnetBits && best->Metric < rt->Metric ) {
- LOG("Skipped - higher metric (%i > %i)", rt->Metric, best->Metric);
- continue;
- }
- }
-
- rt = &iface->Route;
- memcpy(rt->Network, iface->Address, addrSize);
- memset(rt->NextHop, 0, addrSize);
- rt->Metric = DEFAUTL_METRIC;
- rt->SubnetBits = iface->SubnetBits;
-
- best = rt;
- }
+ best = _Route_FindInterfaceRoute(AddressType, Address);
}
if( !best && Interface )
{
{
tRoute *rt = Node->ImplPtr;
int addrSize = IPStack_GetAddressSize(rt->AddressType);
+
+ ENTER("pNode iID pData", Node, ID, Data);
switch(ID)
{
// Get Next Hop
case 4:
- if( !CheckMem(Data, addrSize) ) return -1;
+ if( !CheckMem(Data, addrSize) ) LEAVE_RET('i', -1);
memcpy(Data, rt->NextHop, addrSize);
- return 1;
+ LEAVE_RET('i', 1);
// Set Next Hop
case 5:
- if( Threads_GetUID() != 0 ) return -1;
- if( !CheckMem(Data, addrSize) ) return -1;
+ if( Threads_GetUID() != 0 ) LEAVE_RET('i', -1);
+ if( !CheckMem(Data, addrSize) ) LEAVE_RET('i', -1);
memcpy(rt->NextHop, Data, addrSize);
- return 1;
+ LEAVE_RET('i', 1);
// Get interface name
case 6:
if( !rt->Interface ) {
if(Data && !CheckMem(Data, 1) )
- return -1;
+ LEAVE_RET('i', -1);
if(Data)
*(char*)Data = 0;
- return 0;
+ LEAVE_RET('i', 0);
}
if( Data ) {
if( !CheckMem(Data, strlen(rt->Interface->Name) + 1) )
- return -1;
+ LEAVE_RET('i', -1);
strcpy(Data, rt->Interface->Name);
}
- return strlen(rt->Interface->Name);
+ LEAVE_RET('i', strlen(rt->Interface->Name));
// Set interface name
case 7:
if( Threads_GetUID() != 0 )
- return -1;
+ LEAVE_RET('i', -1);
if( !CheckString(Data) )
- return -1;
+ LEAVE_RET('i', -1);
else
{
tInterface *iface;
tVFS_Node *tmp;
tmp = IPStack_Root_FindDir(NULL, Data);
if(!tmp)
- return -1;
+ LEAVE_RET('i', -1);
iface = tmp->ImplPtr;
if(tmp->Type->Close) tmp->Type->Close(tmp);
if( iface->Type != rt->AddressType )
- return -1;
+ LEAVE_RET('i', -1);
// TODO: Other checks?
rt->Interface = iface;
}
- return 0;
+ LEAVE_RET('i', 0);
default:
- return -1;
+ LEAVE_RET('i', -1);
}
}
git.ucc.asn.au / tpg / acess2.git / blobdiff
UCC git Repository :: git.ucc.asn.au