[src/trunk]: src/sys/dev/usb Check for write permission for some ioctls.

[augustss <augustss%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/57fe6d30191e
branches:  trunk
changeset: 526000:57fe6d30191e
user:      augustss <augustss%NetBSD.org@localhost>
date:      Tue Apr 23 06:34:11 2002 +0000

description:
Check for write permission for some ioctls.

diffstat:

 sys/dev/usb/usb.c |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (45 lines):

diff -r 7851751280a3 -r 57fe6d30191e sys/dev/usb/usb.c
--- a/sys/dev/usb/usb.c Tue Apr 23 06:10:42 2002 +0000
+++ b/sys/dev/usb/usb.c Tue Apr 23 06:34:11 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usb.c,v 1.68 2002/02/20 20:30:12 christos Exp $        */
+/*     $NetBSD: usb.c,v 1.69 2002/04/23 06:34:11 augustss Exp $        */
 
 /*
  * Copyright (c) 1998, 2002 The NetBSD Foundation, Inc.
@@ -44,7 +44,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usb.c,v 1.68 2002/02/20 20:30:12 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usb.c,v 1.69 2002/04/23 06:34:11 augustss Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -54,6 +54,7 @@
 #include <sys/kthread.h>
 #include <sys/proc.h>
 #include <sys/conf.h>
+#include <sys/fcntl.h>
 #include <sys/poll.h>
 #include <sys/select.h>
 #include <sys/vnode.h>
@@ -466,6 +467,8 @@
        switch (cmd) {
 #ifdef USB_DEBUG
        case USB_SETDEBUG:
+               if (!(flag & FWRITE))
+                       return (EBADF);
                usbdebug  = ((*(int *)data) & 0x000000ff);
 #ifdef UHCI_DEBUG
                uhcidebug = ((*(int *)data) & 0x0000ff00) >> 8;
@@ -486,6 +489,9 @@
                usbd_status err;
                int error = 0;
 
+               if (!(flag & FWRITE))
+                       return (EBADF);
+
                DPRINTF(("usbioctl: USB_REQUEST addr=%d len=%d\n", addr, len));
                if (len < 0 || len > 32768)
                        return (EINVAL);