示例#1
0
int
netbsd32_md_ioctl(struct file *fp, netbsd32_u_long cmd, void *data32, struct lwp *l)
{
	u_int size;
	void *data, *memp = NULL;
#define STK_PARAMS	128
	u_long stkbuf[STK_PARAMS/sizeof(u_long)];
	int error;

	switch (cmd) {
	case FBIOPUTCMAP32:
		IOCTL_STRUCT_CONV_TO(FBIOPUTCMAP, fbcmap);
	case FBIOGETCMAP32:
		IOCTL_STRUCT_CONV_TO(FBIOGETCMAP, fbcmap);

	case FBIOSCURSOR32:
		IOCTL_STRUCT_CONV_TO(FBIOSCURSOR, fbcursor);
	case FBIOGCURSOR32:
		IOCTL_STRUCT_CONV_TO(FBIOGCURSOR, fbcursor);

	case OPIOCGET32:
		IOCTL_STRUCT_CONV_TO(OPIOCGET, opiocdesc);
	case OPIOCSET32:
		IOCTL_STRUCT_CONV_TO(OPIOCSET, opiocdesc);
	case OPIOCNEXTPROP32:
		IOCTL_STRUCT_CONV_TO(OPIOCNEXTPROP, opiocdesc);
	default:
		error = (*fp->f_ops->fo_ioctl)(fp, cmd, data32);
	}
	if (memp)
		kmem_free(memp, size);
	return (error);
}
示例#2
0
/*
 * main ioctl syscall.
 *
 * ok, here we are in the biggy.  we have to do fix ups depending
 * on the ioctl command before and afterwards.
 */
int
netbsd32_ioctl(struct lwp *l, const struct netbsd32_ioctl_args *uap, register_t *retval)
{
	/* {
		syscallarg(int) fd;
		syscallarg(netbsd32_u_long) com;
		syscallarg(netbsd32_voidp) data;
	} */
	struct proc *p = l->l_proc;
	struct file *fp;
	struct filedesc *fdp;
	u_long com;
	int error = 0;
	u_int size, size32;
	void *data, *memp = NULL;
	void *data32, *memp32 = NULL;
	unsigned fd;
	fdfile_t *ff;
	int tmp;
#define STK_PARAMS	128
	u_long stkbuf[STK_PARAMS/sizeof(u_long)];
	u_long stkbuf32[STK_PARAMS/sizeof(u_long)];

	/*
	 * we need to translate some commands (_IOW) before calling sys_ioctl,
	 * some after (_IOR), and some both (_IOWR).
	 */
#if 0
	{
char *dirs[8] = { "NONE!", "VOID", "OUT", "VOID|OUT!", "IN", "VOID|IN!",
		"INOUT", "VOID|IN|OUT!" };

printf("netbsd32_ioctl(%d, %x, %x): %s group %c base %d len %d\n",
       SCARG(uap, fd), SCARG(uap, com), SCARG(uap, data),
       dirs[((SCARG(uap, com) & IOC_DIRMASK)>>29)],
       IOCGROUP(SCARG(uap, com)), IOCBASECMD(SCARG(uap, com)),
       IOCPARM_LEN(SCARG(uap, com)));
	}
#endif

	fdp = p->p_fd;
	fd = SCARG(uap, fd);
	if ((fp = fd_getfile(fd)) == NULL)
		return (EBADF);
	if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
		error = EBADF;
		goto out;
	}

	ff = fdp->fd_ofiles[SCARG(uap, fd)];
	switch (com = SCARG(uap, com)) {
	case FIOCLEX:
		ff->ff_exclose = true;
		fdp->fd_exclose = true;
		goto out;

	case FIONCLEX:
		ff->ff_exclose = false;
		goto out;
	}

	/*
	 * Interpret high order word to find amount of data to be
	 * copied to/from the user's address space.
	 */
	size = 0;
	size32 = IOCPARM_LEN(com);
	if (size32 > IOCPARM_MAX) {
		error = ENOTTY;
		goto out;
	}
	if (size32 > sizeof(stkbuf)) {
		memp32 = kmem_alloc((size_t)size32, KM_SLEEP);
		data32 = memp32;
	} else
		data32 = (void *)stkbuf32;
	if (com&IOC_IN) {
		if (size32) {
			error = copyin(SCARG_P32(uap, data), data32, size32);
			if (error) {
				if (memp32)
					kmem_free(memp32, (size_t)size32);
				goto out;
			}
			ktrgenio(fd, UIO_WRITE, SCARG_P32(uap, data),
			    size32, 0);
		} else
			*(void **)data32 = SCARG_P32(uap, data);
	} else if ((com&IOC_OUT) && size32)
		/*
		 * Zero the buffer so the user always
		 * gets back something deterministic.
		 */
		memset(data32, 0, size32);
	else if (com&IOC_VOID)
		*(void **)data32 = SCARG_P32(uap, data);

	/*
	 * convert various structures, pointers, and other objects that
	 * change size from 32 bit -> 64 bit, for all ioctl commands.
	 */
	switch (SCARG(uap, com)) {
	case FIONBIO:
		mutex_enter(&fp->f_lock);
		if ((tmp = *(int *)data32) != 0)
			fp->f_flag |= FNONBLOCK;
		else
			fp->f_flag &= ~FNONBLOCK;
		mutex_exit(&fp->f_lock);
		error = (*fp->f_ops->fo_ioctl)(fp, FIONBIO, (void *)&tmp);
		break;

	case FIOASYNC:
		mutex_enter(&fp->f_lock);
		if ((tmp = *(int *)data32) != 0)
			fp->f_flag |= FASYNC;
		else
			fp->f_flag &= ~FASYNC;
		mutex_exit(&fp->f_lock);
		error = (*fp->f_ops->fo_ioctl)(fp, FIOASYNC, (void *)&tmp);
		break;

	case DIOCGPART32:
		IOCTL_STRUCT_CONV_TO(DIOCGPART, partinfo);
#if 0	/* not implemented by anything */
	case DIOCRFORMAT32:
		IOCTL_STRUCT_CONV_TO(DIOCRFORMAT, format_op);
	case DIOCWFORMAT32:
		IOCTL_STRUCT_CONV_TO(DIOCWFORMAT, format_op);
#endif

/*
 * only a few ifreq syscalls need conversion and those are
 * all driver specific... XXX
 */
#if 0
	case SIOCGADDRROM3232:
		IOCTL_STRUCT_CONV_TO(SIOCGADDRROM32, ifreq);
	case SIOCGCHIPID32:
		IOCTL_STRUCT_CONV_TO(SIOCGCHIPID, ifreq);
	case SIOCSIFADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFADDR, ifreq);
	case OSIOCGIFADDR32:
		IOCTL_STRUCT_CONV_TO(OSIOCGIFADDR, ifreq);
	case SIOCGIFADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFADDR, ifreq);
	case SIOCSIFDSTADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFDSTADDR, ifreq);
	case OSIOCGIFDSTADDR32:
		IOCTL_STRUCT_CONV_TO(OSIOCGIFDSTADDR, ifreq);
	case SIOCGIFDSTADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFDSTADDR, ifreq);
	case OSIOCGIFBRDADDR32:
		IOCTL_STRUCT_CONV_TO(OSIOCGIFBRDADDR, ifreq);
	case SIOCGIFBRDADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFBRDADDR, ifreq);
	case SIOCSIFBRDADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFBRDADDR, ifreq);
	case OSIOCGIFNETMASK32:
		IOCTL_STRUCT_CONV_TO(OSIOCGIFNETMASK, ifreq);
	case SIOCGIFNETMASK32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFNETMASK, ifreq);
	case SIOCSIFNETMASK32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFNETMASK, ifreq);
	case SIOCGIFMETRIC32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFMETRIC, ifreq);
	case SIOCSIFMETRIC32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFMETRIC, ifreq);
	case SIOCDIFADDR32:
		IOCTL_STRUCT_CONV_TO(SIOCDIFADDR, ifreq);
	case SIOCADDMULTI32:
		IOCTL_STRUCT_CONV_TO(SIOCADDMULTI, ifreq);
	case SIOCDELMULTI32:
		IOCTL_STRUCT_CONV_TO(SIOCDELMULTI, ifreq);
	case SIOCSIFMEDIA32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFMEDIA, ifreq);
	case SIOCSIFMTU32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFMTU, ifreq);
	case SIOCGIFMTU32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFMTU, ifreq);
	case BIOCGETIF32:
		IOCTL_STRUCT_CONV_TO(BIOCGETIF, ifreq);
	case BIOCSETIF32:
		IOCTL_STRUCT_CONV_TO(BIOCSETIF, ifreq);
	case SIOCPHASE132:
		IOCTL_STRUCT_CONV_TO(SIOCPHASE1, ifreq);
	case SIOCPHASE232:
		IOCTL_STRUCT_CONV_TO(SIOCPHASE2, ifreq);
#endif

	case OOSIOCGIFCONF32:
		IOCTL_STRUCT_CONV_TO(OOSIOCGIFCONF, ifconf);
	case OSIOCGIFCONF32:
		IOCTL_STRUCT_CONV_TO(OSIOCGIFCONF, ifconf);
	case SIOCGIFCONF32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFCONF, ifconf);

	case SIOCGIFFLAGS32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFFLAGS, ifreq);
	case SIOCSIFFLAGS32:
		IOCTL_STRUCT_CONV_TO(SIOCSIFFLAGS, ifreq);

	case SIOCGIFMEDIA32:
		IOCTL_STRUCT_CONV_TO(SIOCGIFMEDIA, ifmediareq);

	case SIOCSDRVSPEC32:
		IOCTL_STRUCT_CONV_TO(SIOCSDRVSPEC, ifdrv);

	case SIOCGETVIFCNT32:
		IOCTL_STRUCT_CONV_TO(SIOCGETVIFCNT, sioc_vif_req);

	case SIOCGETSGCNT32:
		IOCTL_STRUCT_CONV_TO(SIOCGETSGCNT, sioc_sg_req);

	default:
#ifdef NETBSD32_MD_IOCTL
		error = netbsd32_md_ioctl(fp, com, data32, l);
#else
		error = (*fp->f_ops->fo_ioctl)(fp, com, data32);
#endif
		break;
	}

	if (error == EPASSTHROUGH)
		error = ENOTTY;

	/*
	 * Copy any data to user, size was
	 * already set and checked above.
	 */
	if (error == 0 && (com&IOC_OUT) && size32) {
		error = copyout(data32, SCARG_P32(uap, data), size32);
		ktrgenio(fd, UIO_READ, SCARG_P32(uap, data),
		    size32, error);
	}

	/* if we malloced data, free it here */
	if (memp32)
		kmem_free(memp32, (size_t)size32);
	if (memp)
		kmem_free(memp, (size_t)size);
 out:
	fd_putfile(fd);
	return (error);
}