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authorDavid Vrabel <david.vrabel@csr.com>2009-02-18 14:43:47 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-24 16:20:35 -0700
commit6da9c99059bf24fb1faae6b9613bae64ea50c05e (patch)
treef190e2d2b6daab5d8b02c57b24ac37f43a50c1b7 /drivers/usb
parent4246b06a33ebdd6593dccaab3aa01eb0c9f8c1c8 (diff)
USB: allow libusb to talk to unauthenticated WUSB devices
To permit a userspace application to associate with WUSB devices using numeric association, control transfers to unauthenticated WUSB devices must be allowed. This requires that wusbcore correctly sets the device state to UNAUTHENTICATED, DEFAULT and ADDRESS and that control transfers can be performed to UNAUTHENTICATED devices. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/core/devio.c3
-rw-r--r--drivers/usb/core/hub.c1
-rw-r--r--drivers/usb/core/urb.c2
-rw-r--r--drivers/usb/wusbcore/devconnect.c2
-rw-r--r--drivers/usb/wusbcore/security.c2
5 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6585f527e38..8f022af2fd7 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -525,7 +525,8 @@ static int check_ctrlrecip(struct dev_state *ps, unsigned int requesttype,
{
int ret = 0;
- if (ps->dev->state != USB_STATE_ADDRESS
+ if (ps->dev->state != USB_STATE_UNAUTHENTICATED
+ && ps->dev->state != USB_STATE_ADDRESS
&& ps->dev->state != USB_STATE_CONFIGURED)
return -EHOSTUNREACH;
if (USB_TYPE_VENDOR == (USB_TYPE_MASK & requesttype))
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7e33d63ab92..f17d9ebc44a 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1305,6 +1305,7 @@ void usb_set_device_state(struct usb_device *udev,
recursively_mark_NOTATTACHED(udev);
spin_unlock_irqrestore(&device_state_lock, flags);
}
+EXPORT_SYMBOL_GPL(usb_set_device_state);
/*
* WUSB devices are simple: they have no hubs behind, so the mapping
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 58bc5e3c256..7025d801f23 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -295,7 +295,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
if (!urb || urb->hcpriv || !urb->complete)
return -EINVAL;
dev = urb->dev;
- if ((!dev) || (dev->state < USB_STATE_DEFAULT))
+ if ((!dev) || (dev->state < USB_STATE_UNAUTHENTICATED))
return -ENODEV;
/* For now, get the endpoint from the pipe. Eventually drivers
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 8e18141bb2e..f0aac0cf315 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -889,6 +889,8 @@ static void wusb_dev_add_ncb(struct usb_device *usb_dev)
if (usb_dev->wusb == 0 || usb_dev->devnum == 1)
return; /* skip non wusb and wusb RHs */
+ usb_set_device_state(usb_dev, USB_STATE_UNAUTHENTICATED);
+
wusbhc = wusbhc_get_by_usb_dev(usb_dev);
if (wusbhc == NULL)
goto error_nodev;
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index f4aa28eca70..8118db7f1d8 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -312,6 +312,7 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)
result = wusb_set_dev_addr(wusbhc, wusb_dev, 0);
if (result < 0)
goto error_addr0;
+ usb_set_device_state(usb_dev, USB_STATE_DEFAULT);
usb_ep0_reinit(usb_dev);
/* Set new (authenticated) address. */
@@ -327,6 +328,7 @@ int wusb_dev_update_address(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev)
result = wusb_set_dev_addr(wusbhc, wusb_dev, new_address);
if (result < 0)
goto error_addr;
+ usb_set_device_state(usb_dev, USB_STATE_ADDRESS);
usb_ep0_reinit(usb_dev);
usb_dev->authenticated = 1;
error_addr: