case SYS_GETUID: ret = Threads_GetUID(); break;
case SYS_GETGID: ret = Threads_GetGID(); break;
+ // -- Set User/Group IDs
+ case SYS_SETUID: Log("Setting User ID to %i", Regs->Arg1); break;
+ case SYS_SETGID: Log("Setting Group ID to %i", Regs->Arg1); break;
+
// -- Send Message
case SYS_SENDMSG:
ret = Proc_SendMessage(&err, Regs->Arg1, Regs->Arg2, (void*)Regs->Arg3);
// Binary Control
// ---
case SYS_EXECVE:
+ if( !Syscall_ValidString(Regs->Arg1) ) {
+ err = -EINVAL;
+ ret = -1;
+ break;
+ }
ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
break;
case SYS_LOADBIN:
+ if( !Syscall_ValidString(Regs->Arg1)
+ || !Syscall_Valid(sizeof(Uint), Regs->Arg2) ) {
+ err = -EINVAL;
+ ret = -1;
+ break;
+ }
ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
break;
// Virtual Filesystem
// ---
case SYS_OPEN:
+ if( !Syscall_ValidString(Regs->Arg1) ) {
+ err = -EINVAL;
+ ret = -1;
+ break;
+ }
ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
break;
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 );
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,