| Message ID | 1295876249-15634-1-git-send-email-ddvlad@rosedu.org |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
On Mon, 24 Jan 2011 15:37:29 +0200 Vlad Dogaru <ddvlad@rosedu.org> wrote: > The group of a network device can be queried or changed from userspace > using sysfs. > > For example, considering sysfs mounted in /sys, one can change the group > that interface lo belongs to: > echo 1 > /sys/class/net/lo/group > > Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Stephen Hemminger <shemminger@vyatta.com> Date: Tue, 25 Jan 2011 14:41:06 +1000 > On Mon, 24 Jan 2011 15:37:29 +0200 > Vlad Dogaru <ddvlad@rosedu.org> wrote: > >> The group of a network device can be queried or changed from userspace >> using sysfs. >> >> For example, considering sysfs mounted in /sys, one can change the group >> that interface lo belongs to: >> echo 1 > /sys/class/net/lo/group >> >> Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org> > > Acked-by: Stephen Hemminger <shemminger@vyatta.com> Applied to net-next-2.6, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index e23c01b..b726131 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -295,6 +295,20 @@ static ssize_t show_ifalias(struct device *dev, return ret; } +NETDEVICE_SHOW(group, fmt_dec); + +static int change_group(struct net_device *net, unsigned long new_group) +{ + dev_set_group(net, (int) new_group); + return 0; +} + +static ssize_t store_group(struct device *dev, struct device_attribute *attr, + const char *buf, size_t len) +{ + return netdev_store(dev, attr, buf, len, change_group); +} + static struct device_attribute net_class_attributes[] = { __ATTR(addr_assign_type, S_IRUGO, show_addr_assign_type, NULL), __ATTR(addr_len, S_IRUGO, show_addr_len, NULL), @@ -316,6 +330,7 @@ static struct device_attribute net_class_attributes[] = { __ATTR(flags, S_IRUGO | S_IWUSR, show_flags, store_flags), __ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len, store_tx_queue_len), + __ATTR(group, S_IRUGO | S_IWUSR, show_group, store_group), {} };
The group of a network device can be queried or changed from userspace using sysfs. For example, considering sysfs mounted in /sys, one can change the group that interface lo belongs to: echo 1 > /sys/class/net/lo/group Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org> --- net/core/net-sysfs.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-)