vserver 2.0 rc7
[linux-2.6.git] / drivers / usb / core / devio.c
index c5ecae8..6bfab4b 100644 (file)
@@ -213,12 +213,10 @@ static struct async *alloc_async(unsigned int numisoframes)
 
 static void free_async(struct async *as)
 {
-        if (as->urb->transfer_buffer)
-                kfree(as->urb->transfer_buffer);
-        if (as->urb->setup_packet)
-                kfree(as->urb->setup_packet);
+       kfree(as->urb->transfer_buffer);
+       kfree(as->urb->setup_packet);
        usb_free_urb(as->urb);
-        kfree(as);
+       kfree(as);
 }
 
 static inline void async_newpending(struct async *as)
@@ -565,7 +563,7 @@ static int proc_control(struct dev_state *ps, void __user *arg)
                return -EINVAL;
        if (!(tbuf = (unsigned char *)__get_free_page(GFP_KERNEL)))
                return -ENOMEM;
-       tmo = (ctrl.timeout * HZ + 999) / 1000;
+       tmo = ctrl.timeout;
        if (ctrl.bRequestType & 0x80) {
                if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data, ctrl.wLength)) {
                        free_page((unsigned long)tbuf);
@@ -646,7 +644,7 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
                return -EINVAL;
        if (!(tbuf = kmalloc(len1, GFP_KERNEL)))
                return -ENOMEM;
-       tmo = (bulk.timeout * HZ + 999) / 1000;
+       tmo = bulk.timeout;
        if (bulk.ep & 0x80) {
                if (len1 && !access_ok(VERIFY_WRITE, bulk.data, len1)) {
                        kfree(tbuf);
@@ -673,11 +671,8 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
                usb_lock_device(dev);
        }
        kfree(tbuf);
-       if (i < 0) {
-               dev_warn(&dev->dev, "usbfs: USBDEVFS_BULK failed "
-                        "ep 0x%x len %u ret %d\n", bulk.ep, bulk.len, i);
+       if (i < 0)
                return i;
-       }
        return len2;
 }
 
@@ -816,9 +811,11 @@ static int proc_setconfig(struct dev_state *ps, void __user *arg)
        return status;
 }
 
-static int proc_submiturb(struct dev_state *ps, void __user *arg)
+
+static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
+                            struct usbdevfs_iso_packet_desc __user *iso_frame_desc,
+                            void __user *arg)
 {
-       struct usbdevfs_urb uurb;
        struct usbdevfs_iso_packet_desc *isopkt = NULL;
        struct usb_host_endpoint *ep;
        struct async *as;
@@ -826,42 +823,40 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
        unsigned int u, totlen, isofrmlen;
        int ret, interval = 0, ifnum = -1;
 
-       if (copy_from_user(&uurb, arg, sizeof(uurb)))
-               return -EFAULT;
-       if (uurb.flags & ~(USBDEVFS_URB_ISO_ASAP|USBDEVFS_URB_SHORT_NOT_OK|
+       if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP|USBDEVFS_URB_SHORT_NOT_OK|
                           URB_NO_FSBR|URB_ZERO_PACKET))
                return -EINVAL;
-       if (!uurb.buffer)
+       if (!uurb->buffer)
                return -EINVAL;
-       if (uurb.signr != 0 && (uurb.signr < SIGRTMIN || uurb.signr > SIGRTMAX))
+       if (uurb->signr != 0 && (uurb->signr < SIGRTMIN || uurb->signr > SIGRTMAX))
                return -EINVAL;
-       if (!(uurb.type == USBDEVFS_URB_TYPE_CONTROL && (uurb.endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
-               if ((ifnum = findintfep(ps->dev, uurb.endpoint)) < 0)
+       if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL && (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) == 0)) {
+               if ((ifnum = findintfep(ps->dev, uurb->endpoint)) < 0)
                        return ifnum;
                if ((ret = checkintf(ps, ifnum)))
                        return ret;
        }
-       if ((uurb.endpoint & USB_ENDPOINT_DIR_MASK) != 0)
-               ep = ps->dev->ep_in [uurb.endpoint & USB_ENDPOINT_NUMBER_MASK];
+       if ((uurb->endpoint & USB_ENDPOINT_DIR_MASK) != 0)
+               ep = ps->dev->ep_in [uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
        else
-               ep = ps->dev->ep_out [uurb.endpoint & USB_ENDPOINT_NUMBER_MASK];
+               ep = ps->dev->ep_out [uurb->endpoint & USB_ENDPOINT_NUMBER_MASK];
        if (!ep)
                return -ENOENT;
-       switch(uurb.type) {
+       switch(uurb->type) {
        case USBDEVFS_URB_TYPE_CONTROL:
                if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
                                != USB_ENDPOINT_XFER_CONTROL)
                        return -EINVAL;
                /* min 8 byte setup packet, max arbitrary */
-               if (uurb.buffer_length < 8 || uurb.buffer_length > PAGE_SIZE)
+               if (uurb->buffer_length < 8 || uurb->buffer_length > PAGE_SIZE)
                        return -EINVAL;
                if (!(dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL)))
                        return -ENOMEM;
-               if (copy_from_user(dr, uurb.buffer, 8)) {
+               if (copy_from_user(dr, uurb->buffer, 8)) {
                        kfree(dr);
                        return -EFAULT;
                }
-               if (uurb.buffer_length < (le16_to_cpup(&dr->wLength) + 8)) {
+               if (uurb->buffer_length < (le16_to_cpup(&dr->wLength) + 8)) {
                        kfree(dr);
                        return -EINVAL;
                }
@@ -869,11 +864,11 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
                        kfree(dr);
                        return ret;
                }
-               uurb.endpoint = (uurb.endpoint & ~USB_ENDPOINT_DIR_MASK) | (dr->bRequestType & USB_ENDPOINT_DIR_MASK);
-               uurb.number_of_packets = 0;
-               uurb.buffer_length = le16_to_cpup(&dr->wLength);
-               uurb.buffer += 8;
-               if (!access_ok((uurb.endpoint & USB_DIR_IN) ?  VERIFY_WRITE : VERIFY_READ, uurb.buffer, uurb.buffer_length)) {
+               uurb->endpoint = (uurb->endpoint & ~USB_ENDPOINT_DIR_MASK) | (dr->bRequestType & USB_ENDPOINT_DIR_MASK);
+               uurb->number_of_packets = 0;
+               uurb->buffer_length = le16_to_cpup(&dr->wLength);
+               uurb->buffer += 8;
+               if (!access_ok((uurb->endpoint & USB_DIR_IN) ?  VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length)) {
                        kfree(dr);
                        return -EFAULT;
                }
@@ -886,29 +881,29 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
                        return -EINVAL;
                /* allow single-shot interrupt transfers, at bogus rates */
                }
-               uurb.number_of_packets = 0;
-               if (uurb.buffer_length > MAX_USBFS_BUFFER_SIZE)
+               uurb->number_of_packets = 0;
+               if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
                        return -EINVAL;
-               if (!access_ok((uurb.endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb.buffer, uurb.buffer_length))
+               if (!access_ok((uurb->endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length))
                        return -EFAULT;
                break;
 
        case USBDEVFS_URB_TYPE_ISO:
                /* arbitrary limit */
-               if (uurb.number_of_packets < 1 || uurb.number_of_packets > 128)
+               if (uurb->number_of_packets < 1 || uurb->number_of_packets > 128)
                        return -EINVAL;
                if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
                                != USB_ENDPOINT_XFER_ISOC)
                        return -EINVAL;
                interval = 1 << min (15, ep->desc.bInterval - 1);
-               isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) * uurb.number_of_packets;
+               isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) * uurb->number_of_packets;
                if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
                        return -ENOMEM;
-               if (copy_from_user(isopkt, &((struct usbdevfs_urb __user *)arg)->iso_frame_desc, isofrmlen)) {
+               if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
                        kfree(isopkt);
                        return -EFAULT;
                }
-               for (totlen = u = 0; u < uurb.number_of_packets; u++) {
+               for (totlen = u = 0; u < uurb->number_of_packets; u++) {
                        if (isopkt[u].length > 1023) {
                                kfree(isopkt);
                                return -EINVAL;
@@ -919,11 +914,11 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
                        kfree(isopkt);
                        return -EINVAL;
                }
-               uurb.buffer_length = totlen;
+               uurb->buffer_length = totlen;
                break;
 
        case USBDEVFS_URB_TYPE_INTERRUPT:
-               uurb.number_of_packets = 0;
+               uurb->number_of_packets = 0;
                if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
                                != USB_ENDPOINT_XFER_INT)
                        return -EINVAL;
@@ -931,58 +926,53 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
                        interval = 1 << min (15, ep->desc.bInterval - 1);
                else
                        interval = ep->desc.bInterval;
-               if (uurb.buffer_length > MAX_USBFS_BUFFER_SIZE)
+               if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
                        return -EINVAL;
-               if (!access_ok((uurb.endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb.buffer, uurb.buffer_length))
+               if (!access_ok((uurb->endpoint & USB_DIR_IN) ? VERIFY_WRITE : VERIFY_READ, uurb->buffer, uurb->buffer_length))
                        return -EFAULT;
                break;
 
        default:
                return -EINVAL;
        }
-       if (!(as = alloc_async(uurb.number_of_packets))) {
-               if (isopkt)
-                       kfree(isopkt);
-               if (dr)
-                       kfree(dr);
+       if (!(as = alloc_async(uurb->number_of_packets))) {
+               kfree(isopkt);
+               kfree(dr);
                return -ENOMEM;
        }
-       if (!(as->urb->transfer_buffer = kmalloc(uurb.buffer_length, GFP_KERNEL))) {
-               if (isopkt)
-                       kfree(isopkt);
-               if (dr)
-                       kfree(dr);
+       if (!(as->urb->transfer_buffer = kmalloc(uurb->buffer_length, GFP_KERNEL))) {
+               kfree(isopkt);
+               kfree(dr);
                free_async(as);
                return -ENOMEM;
        }
         as->urb->dev = ps->dev;
-        as->urb->pipe = (uurb.type << 30) | __create_pipe(ps->dev, uurb.endpoint & 0xf) | (uurb.endpoint & USB_DIR_IN);
-        as->urb->transfer_flags = uurb.flags;
-       as->urb->transfer_buffer_length = uurb.buffer_length;
+        as->urb->pipe = (uurb->type << 30) | __create_pipe(ps->dev, uurb->endpoint & 0xf) | (uurb->endpoint & USB_DIR_IN);
+        as->urb->transfer_flags = uurb->flags;
+       as->urb->transfer_buffer_length = uurb->buffer_length;
        as->urb->setup_packet = (unsigned char*)dr;
-       as->urb->start_frame = uurb.start_frame;
-       as->urb->number_of_packets = uurb.number_of_packets;
+       as->urb->start_frame = uurb->start_frame;
+       as->urb->number_of_packets = uurb->number_of_packets;
        as->urb->interval = interval;
         as->urb->context = as;
         as->urb->complete = async_completed;
-       for (totlen = u = 0; u < uurb.number_of_packets; u++) {
+       for (totlen = u = 0; u < uurb->number_of_packets; u++) {
                as->urb->iso_frame_desc[u].offset = totlen;
                as->urb->iso_frame_desc[u].length = isopkt[u].length;
                totlen += isopkt[u].length;
        }
-       if (isopkt)
-               kfree(isopkt);
+       kfree(isopkt);
        as->ps = ps;
         as->userurb = arg;
-       if (uurb.endpoint & USB_DIR_IN)
-               as->userbuffer = uurb.buffer;
+       if (uurb->endpoint & USB_DIR_IN)
+               as->userbuffer = uurb->buffer;
        else
                as->userbuffer = NULL;
-       as->signr = uurb.signr;
+       as->signr = uurb->signr;
        as->ifnum = ifnum;
        as->task = current;
-       if (!(uurb.endpoint & USB_DIR_IN)) {
-               if (copy_from_user(as->urb->transfer_buffer, uurb.buffer, as->urb->transfer_buffer_length)) {
+       if (!(uurb->endpoint & USB_DIR_IN)) {
+               if (copy_from_user(as->urb->transfer_buffer, uurb->buffer, as->urb->transfer_buffer_length)) {
                        free_async(as);
                        return -EFAULT;
                }
@@ -997,6 +987,16 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
         return 0;
 }
 
+static int proc_submiturb(struct dev_state *ps, void __user *arg)
+{
+       struct usbdevfs_urb uurb;
+
+       if (copy_from_user(&uurb, arg, sizeof(uurb)))
+               return -EFAULT;
+
+       return proc_do_submiturb(ps, &uurb, (((struct usbdevfs_urb __user *)arg)->iso_frame_desc), arg);
+}
+
 static int proc_unlinkurb(struct dev_state *ps, void __user *arg)
 {
        struct async *as;
@@ -1008,10 +1008,11 @@ static int proc_unlinkurb(struct dev_state *ps, void __user *arg)
        return 0;
 }
 
-static int processcompl(struct async *as)
+static int processcompl(struct async *as, void __user * __user *arg)
 {
        struct urb *urb = as->urb;
        struct usbdevfs_urb __user *userurb = as->userurb;
+       void __user *addr = as->userurb;
        unsigned int i;
 
        if (as->userbuffer)
@@ -1024,26 +1025,29 @@ static int processcompl(struct async *as)
        if (put_user(urb->error_count, &userurb->error_count))
                return -EFAULT;
 
-       if (!(usb_pipeisoc(urb->pipe)))
-               return 0;
-       for (i = 0; i < urb->number_of_packets; i++) {
-               if (put_user(urb->iso_frame_desc[i].actual_length,
-                            &userurb->iso_frame_desc[i].actual_length))
-                       return -EFAULT;
-               if (put_user(urb->iso_frame_desc[i].status,
-                            &userurb->iso_frame_desc[i].status))
-                       return -EFAULT;
+       if (usb_pipeisoc(urb->pipe)) {
+               for (i = 0; i < urb->number_of_packets; i++) {
+                       if (put_user(urb->iso_frame_desc[i].actual_length,
+                                    &userurb->iso_frame_desc[i].actual_length))
+                               return -EFAULT;
+                       if (put_user(urb->iso_frame_desc[i].status,
+                                    &userurb->iso_frame_desc[i].status))
+                               return -EFAULT;
+               }
        }
+
+       free_async(as);
+
+       if (put_user(addr, (void __user * __user *)arg))
+               return -EFAULT;
        return 0;
 }
 
-static int proc_reapurb(struct dev_state *ps, void __user *arg)
+static struct async* reap_as(struct dev_state *ps)
 {
         DECLARE_WAITQUEUE(wait, current);
        struct async *as = NULL;
-       void __user *addr;
        struct usb_device *dev = ps->dev;
-       int ret;
 
        add_wait_queue(&ps->wait, &wait);
        for (;;) {
@@ -1058,16 +1062,14 @@ static int proc_reapurb(struct dev_state *ps, void __user *arg)
        }
        remove_wait_queue(&ps->wait, &wait);
        set_current_state(TASK_RUNNING);
-       if (as) {
-               ret = processcompl(as);
-               addr = as->userurb;
-               free_async(as);
-               if (ret)
-                       return ret;
-               if (put_user(addr, (void __user * __user *)arg))
-                       return -EFAULT;
-               return 0;
-       }
+       return as;
+}
+
+static int proc_reapurb(struct dev_state *ps, void __user *arg)
+{
+       struct async *as = reap_as(ps);
+       if (as)
+               return processcompl(as, (void __user * __user *)arg);
        if (signal_pending(current))
                return -EINTR;
        return -EIO;
@@ -1076,21 +1078,105 @@ static int proc_reapurb(struct dev_state *ps, void __user *arg)
 static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
 {
        struct async *as;
-       void __user *addr;
-       int ret;
 
        if (!(as = async_getcompleted(ps)))
                return -EAGAIN;
-       ret = processcompl(as);
-       addr = as->userurb;
+       return processcompl(as, (void __user * __user *)arg);
+}
+
+#ifdef CONFIG_COMPAT
+
+static int get_urb32(struct usbdevfs_urb *kurb,
+                    struct usbdevfs_urb32 __user *uurb)
+{
+       __u32  uptr;
+       if (get_user(kurb->type, &uurb->type) ||
+           __get_user(kurb->endpoint, &uurb->endpoint) ||
+           __get_user(kurb->status, &uurb->status) ||
+           __get_user(kurb->flags, &uurb->flags) ||
+           __get_user(kurb->buffer_length, &uurb->buffer_length) ||
+           __get_user(kurb->actual_length, &uurb->actual_length) ||
+           __get_user(kurb->start_frame, &uurb->start_frame) ||
+           __get_user(kurb->number_of_packets, &uurb->number_of_packets) ||
+           __get_user(kurb->error_count, &uurb->error_count) ||
+           __get_user(kurb->signr, &uurb->signr))
+               return -EFAULT;
+
+       if (__get_user(uptr, &uurb->buffer))
+               return -EFAULT;
+       kurb->buffer = compat_ptr(uptr);
+       if (__get_user(uptr, &uurb->buffer))
+               return -EFAULT;
+       kurb->usercontext = compat_ptr(uptr);
+
+       return 0;
+}
+
+static int proc_submiturb_compat(struct dev_state *ps, void __user *arg)
+{
+       struct usbdevfs_urb uurb;
+
+       if (get_urb32(&uurb,(struct usbdevfs_urb32 *)arg))
+               return -EFAULT;
+
+       return proc_do_submiturb(ps, &uurb, ((struct usbdevfs_urb32 __user *)arg)->iso_frame_desc, arg);
+}
+
+static int processcompl_compat(struct async *as, void __user * __user *arg)
+{
+       struct urb *urb = as->urb;
+       struct usbdevfs_urb32 __user *userurb = as->userurb;
+       void __user *addr = as->userurb;
+       unsigned int i;
+
+       if (as->userbuffer)
+               if (copy_to_user(as->userbuffer, urb->transfer_buffer, urb->transfer_buffer_length))
+                       return -EFAULT;
+       if (put_user(urb->status, &userurb->status))
+               return -EFAULT;
+       if (put_user(urb->actual_length, &userurb->actual_length))
+               return -EFAULT;
+       if (put_user(urb->error_count, &userurb->error_count))
+               return -EFAULT;
+
+       if (usb_pipeisoc(urb->pipe)) {
+               for (i = 0; i < urb->number_of_packets; i++) {
+                       if (put_user(urb->iso_frame_desc[i].actual_length,
+                                    &userurb->iso_frame_desc[i].actual_length))
+                               return -EFAULT;
+                       if (put_user(urb->iso_frame_desc[i].status,
+                                    &userurb->iso_frame_desc[i].status))
+                               return -EFAULT;
+               }
+       }
+
        free_async(as);
-       if (ret)
-               return ret;
-       if (put_user(addr, (void __user * __user *)arg))
+       if (put_user((u32)(u64)addr, (u32 __user *)arg))
                return -EFAULT;
        return 0;
 }
 
+static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
+{
+       struct async *as = reap_as(ps);
+       if (as)
+               return processcompl_compat(as, (void __user * __user *)arg);
+       if (signal_pending(current))
+               return -EINTR;
+       return -EIO;
+}
+
+static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
+{
+       struct async *as;
+
+       if (!(as = async_getcompleted(ps)))
+               return -EAGAIN;
+       return processcompl_compat(as, (void __user * __user *)arg);
+}
+
+#endif
+
 static int proc_disconnectsignal(struct dev_state *ps, void __user *arg)
 {
        struct usbdevfs_disconnectsignal ds;
@@ -1144,7 +1230,7 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
                        return -ENOMEM;
                if ((_IOC_DIR(ctrl.ioctl_code) & _IOC_WRITE)) {
                        if (copy_from_user (buf, ctrl.data, size)) {
-                               kfree (buf);
+                               kfree(buf);
                                return -EFAULT;
                        }
                } else {
@@ -1153,8 +1239,7 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
        }
 
        if (!connected(ps->dev)) {
-               if (buf)
-                       kfree(buf);
+               kfree(buf);
                return -ENODEV;
        }
 
@@ -1216,8 +1301,8 @@ static int proc_ioctl (struct dev_state *ps, void __user *arg)
                        && size > 0
                        && copy_to_user (ctrl.data, buf, size) != 0)
                retval = -EFAULT;
-       if (buf != NULL)
-               kfree (buf);
+
+       kfree(buf);
        return retval;
 }
 
@@ -1302,6 +1387,27 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
                        inode->i_mtime = CURRENT_TIME;
                break;
 
+#ifdef CONFIG_COMPAT
+
+       case USBDEVFS_SUBMITURB32:
+               snoop(&dev->dev, "%s: SUBMITURB32\n", __FUNCTION__);
+               ret = proc_submiturb_compat(ps, p);
+               if (ret >= 0)
+                       inode->i_mtime = CURRENT_TIME;
+               break;
+
+       case USBDEVFS_REAPURB32:
+               snoop(&dev->dev, "%s: REAPURB32\n", __FUNCTION__);
+               ret = proc_reapurb_compat(ps, p);
+               break;
+
+       case USBDEVFS_REAPURBNDELAY32:
+               snoop(&dev->dev, "%s: REAPURBDELAY32\n", __FUNCTION__);
+               ret = proc_reapurbnonblock_compat(ps, p);
+               break;
+
+#endif
+
        case USBDEVFS_DISCARDURB:
                snoop(&dev->dev, "%s: DISCARDURB\n", __FUNCTION__);
                ret = proc_unlinkurb(ps, p);