#include "link.h"
#include <modules.h>
#include <fs_devfs.h>
+#include "include/adapters.h"
+#include "interface.h"
+#include "init.h"
// === IMPORTS ===
-extern int ARP_Initialise();
-extern void UDP_Initialise();
-extern void TCP_Initialise();
-extern int IPv4_Initialise();
-extern int IPv6_Initialise();
-
-extern tAdapter *IPStack_GetAdapter(const char *Path);
-extern char *IPStack_Root_ReadDir(tVFS_Node *Node, int Pos);
-extern tVFS_Node *IPStack_Root_FindDir(tVFS_Node *Node, const char *Name);
-extern int IPStack_Root_IOCtl(tVFS_Node *Node, int ID, void *Data);
-extern tInterface gIP_LoopInterface;
-extern tInterface *IPStack_AddInterface(const char *Device, const char *Name);
extern tRoute *IPStack_AddRoute(const char *Interface, void *Network, int SubnetBits, void *NextHop, int Metric);
// === PROTOTYPES ===
// === GLOBALS ===
MODULE_DEFINE(0, VERSION, IPStack, IPStack_Install, NULL, NULL);
-tVFS_NodeType gIP_RootNodeType = {
- .ReadDir = IPStack_Root_ReadDir,
- .FindDir = IPStack_Root_FindDir,
- .IOCtl = IPStack_Root_IOCtl
-};
tDevFS_Driver gIP_DriverInfo = {
NULL, "ip",
{
*/
int IPStack_Install(char **Arguments)
{
- int i = 0;
-
+ // TODO: different Layer 2 protocols
// Layer 3 - Network Layer Protocols
ARP_Initialise();
IPv4_Initialise();
TCP_Initialise();
UDP_Initialise();
- if(Arguments)
- {
- // Parse module arguments
- for( i = 0; Arguments[i]; i++ )
- {
- // TODO:
- // Define interfaces by <Device>:<Type>:<HexStreamAddress>:<Bits>
- // Where:
- // - <Device> is the device path (E.g. /Devices/ne2k/0)
- // - <Type> is a number (e.g. 4) or symbol (e.g. AF_INET4)
- // - <HexStreamAddress> is a condensed hexadecimal stream (in big endian)
- // (E.g. 0A000201 for 10.0.2.1 IPv4)
- // - <Bits> is the number of subnet bits (E.g. 24 for an IPv4 Class C)
- // Example: /Devices/ne2k/0:4:0A00020A:24
- // would define an interface with the address 10.0.2.10/24
- if( Arguments[i][0] == '/' ) {
- // Define Interface
- char *dev, *type, *addr, *bits;
-
- // Read definition
- dev = Arguments[i];
- type = strchr(dev, ':');
- if( !type ) {
- Log_Warning("IPStack", "<Device>:<Type>:<HexStreamAddress>:<Bits>");
- continue;
- }
- *type = '\0'; type ++;
-
- addr = strchr(type, ':');
- if( !addr ) {
- Log_Warning("IPStack", "<Device>:<Type>:<HexStreamAddress>:<Bits>");
- continue;
- }
- *addr = '\0'; addr ++;
-
- bits = strchr(addr, ':');
- if( !bits ) {
- Log_Warning("IPStack", "<Device>:<Type>:<HexStreamAddress>:<Bits>");
- continue;
- }
- *bits = '\0'; bits ++;
-
- // Define interface
- {
- int iType = atoi(type);
- int size = IPStack_GetAddressSize(iType);
- Uint8 addrData[size];
- int iBits = atoi(bits);
-
- UnHex(addrData, size, addr);
-
- tInterface *iface = IPStack_AddInterface(dev, "");
- if( !iface ) {
- Log_Warning("IPStack", "Unable to add interface on '%s'", dev);
- continue ;
- }
- iface->Type = iType;
- memcpy(iface->Address, addrData, size);
- iface->SubnetBits = iBits;
-
- // Route for addrData/iBits, no next hop, default metric
- IPStack_AddRoute(iface->Name, iface->Address, iBits, NULL, 0);
-
- Log_Notice("IPStack", "Boot interface %s/%i on %s",
- IPStack_PrintAddress(iType, addrData), iBits,
- dev);
- }
-
- continue;
- }
-
- // I could also define routes using <Interface>:<HexStreamNetwork>:<Bits>[:<HexStreamGateway>]
- // Example: 1:00000000:0:0A000201
- if( '0' <= Arguments[i][0] && Arguments[i][0] <= '9' )
- {
- // Define Interface
- char *ifaceName, *network, *bits, *gateway;
-
- // Read definition
- ifaceName = Arguments[i];
-
- network = strchr(ifaceName, ':');
- if( !network ) {
- Log_Warning("IPStack", "<iface>:<HexStreamNetwork>:<Bits>:<HexStreamGateway>");
- continue;
- }
- *network = '\0'; network ++;
-
- bits = strchr(network, ':');
- if( !bits ) {
- Log_Warning("IPStack", "<Device>:<Type>:<HexStreamAddress>:<Bits>");
- continue;
- }
- *bits = '\0'; bits ++;
-
- gateway = strchr(bits, ':');
- if( gateway ) {
- *gateway = '\0'; gateway ++;
- }
-
- // Define route
- {
- tVFS_Node *node = IPStack_Root_FindDir(NULL, ifaceName);
- if( !node ) {
- Log_Warning("IPStack", "Unknown interface '%s' in arg %i", ifaceName, i);
- continue ;
- }
- tInterface *iface = node->ImplPtr;
-
- int size = IPStack_GetAddressSize(iface->Type);
- Uint8 netData[size];
- Uint8 gwData[size];
- int iBits = atoi(bits);
-
- UnHex(netData, size, network);
- if( gateway )
- UnHex(gwData, size, gateway);
- else
- memset(gwData, 0, size);
-
- IPStack_AddRoute(ifaceName, netData, iBits, gwData, 30);
- }
-
- continue;
- }
- }
- }
-
// Initialise loopback interface
- gIP_LoopInterface.Adapter = IPStack_GetAdapter("LOOPBACK");
+ gIP_LoopInterface.Adapter = Adapter_GetByName("lo");
DevFS_AddDevice( &gIP_DriverInfo );
return 0;
}
+bool IPStack_AddressIsBroadcast(int AddrType, const void *Addr, int SubnetBits)
+{
+ const size_t addrsize = IPStack_GetAddressSize(AddrType);
+ const Uint8 *addr = Addr;
+
+ ASSERTC( SubnetBits, >=, 0 );
+ ASSERTC( SubnetBits, <=, addrsize * 8 );
+ const size_t host_bits = addrsize*8 - SubnetBits;
+
+ for( int i = 0; i < host_bits/8; i ++ )
+ {
+ if( addr[addrsize-i-1] != 0xFF )
+ return false;
+ }
+ Uint8 mask = 0xFF >> (8-(host_bits%8));
+ if( (addr[addrsize-host_bits/8-1] & mask) != mask )
+ return false;
+ return true;
+}
+
const char *IPStack_PrintAddress(int AddressType, const void *Address)
{
switch( AddressType )
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