diff options
author | Kay Sievers <kay.sievers@vrfy.org> | 2009-09-18 23:01:12 +0200 |
---|---|---|
committer | Live-CD User <linux@linux.site> | 2009-09-19 12:50:38 -0700 |
commit | e454cea20bdcff10ee698d11b8882662a0153a47 (patch) | |
tree | f44581fe57787aef0a4f4dc00993a90ea8e688f6 /include/linux | |
parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
download | op-kernel-dev-e454cea20bdcff10ee698d11b8882662a0153a47.zip op-kernel-dev-e454cea20bdcff10ee698d11b8882662a0153a47.tar.gz |
Driver-Core: extend devnode callbacks to provide permissions
This allows subsytems to provide devtmpfs with non-default permissions
for the device node. Instead of the default mode of 0600, null, zero,
random, urandom, full, tty, ptmx now have a mode of 0666, which allows
non-privileged processes to access standard device nodes in case no
other userspace process applies the expected permissions.
This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/device.h | 7 | ||||
-rw-r--r-- | include/linux/genhd.h | 2 | ||||
-rw-r--r-- | include/linux/miscdevice.h | 3 | ||||
-rw-r--r-- | include/linux/usb.h | 4 |
4 files changed, 9 insertions, 7 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 847b763..aca31bf 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -193,7 +193,7 @@ struct class { struct kobject *dev_kobj; int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env); - char *(*nodename)(struct device *dev); + char *(*devnode)(struct device *dev, mode_t *mode); void (*class_release)(struct class *class); void (*dev_release)(struct device *dev); @@ -298,7 +298,7 @@ struct device_type { const char *name; const struct attribute_group **groups; int (*uevent)(struct device *dev, struct kobj_uevent_env *env); - char *(*nodename)(struct device *dev); + char *(*devnode)(struct device *dev, mode_t *mode); void (*release)(struct device *dev); const struct dev_pm_ops *pm; @@ -487,7 +487,8 @@ extern struct device *device_find_child(struct device *dev, void *data, extern int device_rename(struct device *dev, char *new_name); extern int device_move(struct device *dev, struct device *new_parent, enum dpm_order dpm_order); -extern const char *device_get_nodename(struct device *dev, const char **tmp); +extern const char *device_get_devnode(struct device *dev, + mode_t *mode, const char **tmp); extern void *dev_get_drvdata(const struct device *dev); extern void dev_set_drvdata(struct device *dev, void *data); diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 44263cb..109d179 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -142,7 +142,7 @@ struct gendisk { * disks that can't be partitioned. */ char disk_name[DISK_NAME_LEN]; /* name of major driver */ - char *(*nodename)(struct gendisk *gd); + char *(*devnode)(struct gendisk *gd, mode_t *mode); /* Array of pointers to partitions indexed by partno. * Protected with matching bdev lock but stat and other * non-critical accesses use RCU. Always access through diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index 0521177..adaf3c1 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -41,7 +41,8 @@ struct miscdevice { struct list_head list; struct device *parent; struct device *this_device; - const char *devnode; + const char *nodename; + mode_t mode; }; extern int misc_register(struct miscdevice * misc); diff --git a/include/linux/usb.h b/include/linux/usb.h index b1e3c2f..a8fe05f 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -922,7 +922,7 @@ extern struct bus_type usb_bus_type; /** * struct usb_class_driver - identifies a USB driver that wants to use the USB major number * @name: the usb class device name for this driver. Will show up in sysfs. - * @nodename: Callback to provide a naming hint for a possible + * @devnode: Callback to provide a naming hint for a possible * device node to create. * @fops: pointer to the struct file_operations of this driver. * @minor_base: the start of the minor range for this driver. @@ -933,7 +933,7 @@ extern struct bus_type usb_bus_type; */ struct usb_class_driver { char *name; - char *(*nodename)(struct device *dev); + char *(*devnode)(struct device *dev, mode_t *mode); const struct file_operations *fops; int minor_base; }; |