Various Changes

[tpg/acess2.git] / Kernel / syscalls.c

diff --git a/Kernel/syscalls.c b/Kernel/syscalls.c
index 5774dbe..8d17e74 100644 (file)
--- a/Kernel/syscalls.c
+++ b/Kernel/syscalls.c
@@ -152,6 +152,14 @@ void SyscallHandler(tSyscallRegs *Regs)
                VFS_Close( Regs->Arg1 );
                break;
        
+       case SYS_SEEK:
+               ret = VFS_Seek( Regs->Arg1, Regs->Arg2, Regs->Arg3);
+               break;
+               
+       case SYS_TELL:
+               ret = VFS_Tell( Regs->Arg1 );
+               break;
+       
        case SYS_WRITE:
                #if BITS < 64
                ret = VFS_Write( Regs->Arg1, Regs->Arg2|((Uint64)Regs->Arg3<<32), (void*)Regs->Arg4 );
@@ -202,6 +210,36 @@ void SyscallHandler(tSyscallRegs *Regs)
                ret = VFS_ChDir( (void*)Regs->Arg1 );
                break;
        
+       // IO Control
+       case SYS_IOCTL:
+               ret = VFS_IOCtl( Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3 );
+               break;
+       
+       // Mount a filesystem
+       case SYS_MOUNT:
+               // Only root can mount filesystems
+               if(Threads_GetUID() != 0) {
+                       err = -EACCES;
+                       ret = -1;
+                       break;
+               }
+               // Sanity check the paths
+               if(!Syscall_ValidString(Regs->Arg1)
+               || !Syscall_ValidString(Regs->Arg2)
+               || !Syscall_ValidString(Regs->Arg3)
+               || !Syscall_ValidString(Regs->Arg4) ) {
+                       err = -EINVAL;
+                       ret = -1;
+                       break;
+               }
+               ret = VFS_Mount(
+                       (char*)Regs->Arg1,      // Device
+                       (char*)Regs->Arg2,      // Mount point
+                       (char*)Regs->Arg3,      // Filesystem
+                       (char*)Regs->Arg4       // Options
+                       );
+               break;
+       
        // -- Debug
        case SYS_DEBUG:
                Log((char*)Regs->Arg1,