redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

6lowpan: add support for getting short address 

In case of sending RA messages we need some way to get the short address
from an 802.15.4 6LoWPAN interface. This patch will add a temporary
debugfs entry for experimental userspace api.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
steinar/wifi_calib_4_9_kernel
Alexander Aring 2016-06-15 21:20:26 +02:00 committed by David S. Miller
parent bbe5f5cefe
commit cfce94653d
1 changed files with 39 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
net/6lowpan/debugfs.c
View File

@ -245,6 +245,41 @@ static const struct file_operations lowpan_context_fops = {
.release = single_release,
};
static int lowpan_short_addr_get(void *data, u64 *val)
{
struct wpan_dev *wdev = data;
rtnl_lock();
*val = le16_to_cpu(wdev->short_addr);
rtnl_unlock();
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(lowpan_short_addr_fops, lowpan_short_addr_get,
NULL, "0x%04llx\n");
static int lowpan_dev_debugfs_802154_init(const struct net_device *dev,
struct lowpan_dev *ldev)
{
struct dentry *dentry, *root;
if (!lowpan_is_ll(dev, LOWPAN_LLTYPE_IEEE802154))
return 0;
root = debugfs_create_dir("ieee802154", ldev->iface_debugfs);
if (!root)
return -EINVAL;
dentry = debugfs_create_file("short_addr", 0444, root,
lowpan_802154_dev(dev)->wdev->ieee802154_ptr,
&lowpan_short_addr_fops);
if (!dentry)
return -EINVAL;
return 0;
}
int lowpan_dev_debugfs_init(struct net_device *dev)
{
struct lowpan_dev *ldev = lowpan_dev(dev);
@ -272,6 +307,10 @@ int lowpan_dev_debugfs_init(struct net_device *dev)
goto remove_root;
}
ret = lowpan_dev_debugfs_802154_init(dev, ldev);
if (ret < 0)
goto remove_root;
return 0;
remove_root: