2.6.32-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Theodore Ts'o <ty...@mit.edu>
commit b04b3156a20d395a7faa8eed98698d1e17a36000 upstream.
Send the USB device's serial, product, and manufacturer strings to the
/dev/random driver to help seed its pools.
Cc: Linus Torvalds <torva...@linux-foundation.org>
Acked-by: Greg KH <g...@kroah.com>
Signed-off-by: "Theodore Ts'o" <ty...@mit.edu>
Signed-off-by: Paul Gortmaker <paul.gortma...@windriver.com>
Signed-off-by: Willy Tarreau <w...@1wt.eu>
---
drivers/usb/core/hub.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 069de19..02aad50 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/usb/quirks.h>
+#include <linux/random.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
@@ -1831,6 +1832,14 @@ int usb_new_device(struct usb_device *udev)
/* Tell the world! */
announce_device(udev);
+ if (udev->serial)
+ add_device_randomness(udev->serial, strlen(udev->serial));
+ if (udev->product)
+ add_device_randomness(udev->product, strlen(udev->product));
+ if (udev->manufacturer)
+ add_device_randomness(udev->manufacturer,
+ strlen(udev->manufacturer));
+
/* Register the device. The device driver is responsible
* for configuring the device and invoking the add-device
* notifier chain (used by usbfs and possibly others).
--
1.7.2.1.45.g54fbc
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
