Handle more Linux ioctls; from NetBSD. ok deraadt@

1 files changed, 162 insertions, 0 deletions

diff --git a/sys/compat/linux/linux_fdio.c b/sys/compat/linux/linux_fdio.c
new file mode 100644
index 00000000000..7c8db69da10
--- /dev/null
+++ b/sys/compat/linux/linux_fdio.c
@@ -0,0 +1,162 @@
+/*	$OpenBSD: linux_fdio.c,v 1.1 2001/04/09 06:53:44 tholo Exp $	*/
+/*	$NetBSD: linux_fdio.c,v 1.1 2000/12/10 14:12:16 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 2000 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Frank van der Linden for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed for the NetBSD Project by
+ *      Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/ioctl.h>
+#include <sys/file.h>
+#include <sys/filedesc.h>
+#include <sys/mount.h>
+#include <sys/proc.h>
+#include <sys/disklabel.h>
+
+#include <sys/syscallargs.h>
+
+#include <dev/isa/fdreg.h>
+
+#include <compat/linux/linux_types.h>
+#include <compat/linux/linux_ioctl.h>
+#include <compat/linux/linux_signal.h>
+#include <compat/linux/linux_util.h>
+#include <compat/linux/linux_fdio.h>
+
+#include <machine/ioctl_fd.h>
+
+#include <compat/linux/linux_syscallargs.h>
+
+int
+linux_ioctl_fdio(struct proc *p, struct linux_sys_ioctl_args *uap,
+		 register_t *retval)
+{
+	struct filedesc *fdp;
+	struct file *fp;
+	int error;
+	int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *));
+	u_long com;
+	struct fd_type fparams;
+	struct linux_floppy_struct lflop;
+	struct linux_floppy_drive_struct ldrive;
+
+	com = (u_long)SCARG(uap, data);
+
+	fdp = p->p_fd;
+#if 1
+	if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
+	    (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
+		return (EBADF);
+#else
+	if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
+	    (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL ||
+	    (fp->f_iflags & FIF_WANTCLOSE) != 0)
+		return (EBADF);
+
+	FILE_USE(fp);
+#endif
+
+	com = SCARG(uap, com);
+	ioctlf = fp->f_ops->fo_ioctl;
+
+	retval[0] = error = 0;
+
+	switch (com) {
+	case LINUX_FDMSGON:
+	case LINUX_FDMSGOFF:
+	case LINUX_FDTWADDLE:
+	case LINUX_FDCLRPRM:
+		/* whatever you say */
+		break;
+	case LINUX_FDPOLLDRVSTAT:
+		/*
+		 * Just fill in some innocent defaults.
+		 */
+		memset(&ldrive, 0, sizeof ldrive);
+		ldrive.fd_ref = 1;
+		ldrive.maxblock = 2;
+		ldrive.maxtrack = ldrive.track = 1;
+		ldrive.flags = LINUX_FD_DISK_WRITABLE;
+		error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive);
+		break;
+	case LINUX_FDGETPRM:
+		error = ioctlf(fp, FD_GTYPE, (caddr_t)&fparams, p);
+		if (error != 0)
+			break;
+		lflop.size = fparams.heads * fparams.sectrac * fparams.tracks;
+		lflop.sect = fparams.sectrac;
+		lflop.head = fparams.heads;
+		lflop.track = fparams.tracks;
+		lflop.stretch = fparams.step == 2 ? 1 : 0;
+		lflop.spec1 = fparams.steprate;
+		lflop.gap = fparams.gap1;
+		lflop.fmt_gap = fparams.gap2;
+		lflop.rate = fparams.rate;
+
+		error = copyout(&lflop, SCARG(uap, data), sizeof lflop);
+		break;
+	case LINUX_FDSETPRM:
+		/*
+		 * Should use FDIOCSETFORMAT here, iff its interface
+		 * is extended.
+		 */
+	case LINUX_FDDEFPRM:
+	case LINUX_FDFMTBEG:
+	case LINUX_FDFMTTRK:
+	case LINUX_FDFMTEND:
+	case LINUX_FDSETEMSGTRESH:
+	case LINUX_FDFLUSH:
+	case LINUX_FDSETMAXERRS:
+	case LINUX_FDGETMAXERRS:
+	case LINUX_FDGETDRVTYP:
+	case LINUX_FDSETDRVPRM:
+	case LINUX_FDGETDRVPRM:
+	case LINUX_FDGETDRVSTAT:
+	case LINUX_FDRESET:
+	case LINUX_FDGETFDCSTAT:
+	case LINUX_FDWERRORCLR:
+	case LINUX_FDWERRORGET:
+	case LINUX_FDRAWCMD:
+	case LINUX_FDEJECT:
+	default:
+		error = EINVAL;
+	}
+
+#ifdef notdef
+	FILE_UNUSE(fp, p);
+#endif
+
+	return 0;
+}