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Diffstat (limited to 'drivers/usb/core/devio.c')
-rw-r--r--drivers/usb/core/devio.c51
1 files changed, 38 insertions, 13 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index e59efea9410f..e909ff7b9094 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -310,7 +310,8 @@ static struct async *async_getpending(struct dev_state *ps,
static void snoop_urb(struct usb_device *udev,
void __user *userurb, int pipe, unsigned length,
- int timeout_or_status, enum snoop_when when)
+ int timeout_or_status, enum snoop_when when,
+ unsigned char *data, unsigned data_len)
{
static const char *types[] = {"isoc", "int", "ctrl", "bulk"};
static const char *dirs[] = {"out", "in"};
@@ -344,6 +345,11 @@ static void snoop_urb(struct usb_device *udev,
"status %d\n",
ep, t, d, length, timeout_or_status);
}
+
+ if (data && data_len > 0) {
+ print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_NONE, 32, 1,
+ data, data_len, 1);
+ }
}
#define AS_CONTINUATION 1
@@ -410,7 +416,9 @@ static void async_completed(struct urb *urb)
}
snoop(&urb->dev->dev, "urb complete\n");
snoop_urb(urb->dev, as->userurb, urb->pipe, urb->actual_length,
- as->status, COMPLETE);
+ as->status, COMPLETE,
+ ((urb->transfer_flags & URB_DIR_MASK) == USB_DIR_OUT) ?
+ NULL : urb->transfer_buffer, urb->actual_length);
if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
as->status != -ENOENT)
cancel_bulk_urbs(ps, as->bulk_addr);
@@ -774,6 +782,13 @@ static int proc_control(struct dev_state *ps, void __user *arg)
if (!tbuf)
return -ENOMEM;
tmo = ctrl.timeout;
+ snoop(&dev->dev, "control urb: bRequestType=%02x "
+ "bRequest=%02x wValue=%04x "
+ "wIndex=%04x wLength=%04x\n",
+ ctrl.bRequestType, ctrl.bRequest,
+ __le16_to_cpup(&ctrl.wValue),
+ __le16_to_cpup(&ctrl.wIndex),
+ __le16_to_cpup(&ctrl.wLength));
if (ctrl.bRequestType & 0x80) {
if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
ctrl.wLength)) {
@@ -781,15 +796,15 @@ static int proc_control(struct dev_state *ps, void __user *arg)
return -EINVAL;
}
pipe = usb_rcvctrlpipe(dev, 0);
- snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT, NULL, 0);
usb_unlock_device(dev);
i = usb_control_msg(dev, pipe, ctrl.bRequest,
ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
tbuf, ctrl.wLength, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE);
-
+ snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE,
+ tbuf, i);
if ((i > 0) && ctrl.wLength) {
if (copy_to_user(ctrl.data, tbuf, i)) {
free_page((unsigned long)tbuf);
@@ -804,14 +819,15 @@ static int proc_control(struct dev_state *ps, void __user *arg)
}
}
pipe = usb_sndctrlpipe(dev, 0);
- snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT,
+ tbuf, ctrl.wLength);
usb_unlock_device(dev);
i = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ctrl.bRequest,
ctrl.bRequestType, ctrl.wValue, ctrl.wIndex,
tbuf, ctrl.wLength, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE);
+ snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE, NULL, 0);
}
free_page((unsigned long)tbuf);
if (i < 0 && i != -EPIPE) {
@@ -857,12 +873,12 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
kfree(tbuf);
return -EINVAL;
}
- snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, NULL, 0);
usb_unlock_device(dev);
i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, len2, i, COMPLETE);
+ snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, tbuf, len2);
if (!i && len2) {
if (copy_to_user(bulk.data, tbuf, len2)) {
@@ -877,12 +893,12 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
return -EFAULT;
}
}
- snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT);
+ snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, tbuf, len1);
usb_unlock_device(dev);
i = usb_bulk_msg(dev, pipe, tbuf, len1, &len2, tmo);
usb_lock_device(dev);
- snoop_urb(dev, NULL, pipe, len2, i, COMPLETE);
+ snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, NULL, 0);
}
kfree(tbuf);
if (i < 0)
@@ -1101,6 +1117,13 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
is_in = 0;
uurb->endpoint &= ~USB_DIR_IN;
}
+ snoop(&ps->dev->dev, "control urb: bRequestType=%02x "
+ "bRequest=%02x wValue=%04x "
+ "wIndex=%04x wLength=%04x\n",
+ dr->bRequestType, dr->bRequest,
+ __le16_to_cpup(&dr->wValue),
+ __le16_to_cpup(&dr->wIndex),
+ __le16_to_cpup(&dr->wLength));
break;
case USBDEVFS_URB_TYPE_BULK:
@@ -1244,7 +1267,9 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
}
}
snoop_urb(ps->dev, as->userurb, as->urb->pipe,
- as->urb->transfer_buffer_length, 0, SUBMIT);
+ as->urb->transfer_buffer_length, 0, SUBMIT,
+ is_in ? NULL : as->urb->transfer_buffer,
+ uurb->buffer_length);
async_newpending(as);
if (usb_endpoint_xfer_bulk(&ep->desc)) {
@@ -1282,7 +1307,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
dev_printk(KERN_DEBUG, &ps->dev->dev,
"usbfs: usb_submit_urb returned %d\n", ret);
snoop_urb(ps->dev, as->userurb, as->urb->pipe,
- 0, ret, COMPLETE);
+ 0, ret, COMPLETE, NULL, 0);
async_removepending(as);
free_async(as);
return ret;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 09:56:02 +0000