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ef15aac607
If a device has multiple MAC addresses, userspace will need to know about that. Similarly, if it allows the MAC addresses to vary by a bitmask. If a driver exports multiple addresses, it is assumed that it will be able to deal with that many different addresses, which need not necessarily match the ones programmed into the device; if a mask is set then the device should deal addresses within that mask based on an arbitrary "base address". To test it all and show how it is used, add support to hwsim even though it can't actually deal with addresses different from the default. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/*
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* This file provides /sys/class/ieee80211/<wiphy name>/
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* and some default attributes.
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*
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* Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* This file is GPLv2 as found in COPYING.
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <net/cfg80211.h>
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#include "sysfs.h"
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#include "core.h"
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static inline struct cfg80211_registered_device *dev_to_rdev(
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struct device *dev)
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{
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return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
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}
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#define SHOW_FMT(name, fmt, member) \
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static ssize_t name ## _show(struct device *dev, \
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struct device_attribute *attr, \
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char *buf) \
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{ \
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return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member); \
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}
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SHOW_FMT(index, "%d", wiphy_idx);
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SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
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SHOW_FMT(address_mask, "%pM", wiphy.addr_mask);
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static ssize_t addresses_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy;
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char *start = buf;
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int i;
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if (!wiphy->addresses)
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return sprintf(buf, "%pM\n", wiphy->perm_addr);
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for (i = 0; i < wiphy->n_addresses; i++)
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buf += sprintf(buf, "%pM\n", &wiphy->addresses[i].addr);
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return buf - start;
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}
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static struct device_attribute ieee80211_dev_attrs[] = {
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__ATTR_RO(index),
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__ATTR_RO(macaddress),
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__ATTR_RO(address_mask),
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__ATTR_RO(addresses),
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{}
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};
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static void wiphy_dev_release(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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cfg80211_dev_free(rdev);
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}
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#ifdef CONFIG_HOTPLUG
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static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
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{
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/* TODO, we probably need stuff here */
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return 0;
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}
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#endif
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static int wiphy_suspend(struct device *dev, pm_message_t state)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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rdev->suspend_at = get_seconds();
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if (rdev->ops->suspend) {
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rtnl_lock();
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ret = rdev->ops->suspend(&rdev->wiphy);
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rtnl_unlock();
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}
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return ret;
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}
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static int wiphy_resume(struct device *dev)
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{
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struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
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int ret = 0;
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/* Age scan results with time spent in suspend */
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spin_lock_bh(&rdev->bss_lock);
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cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
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spin_unlock_bh(&rdev->bss_lock);
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if (rdev->ops->resume) {
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rtnl_lock();
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ret = rdev->ops->resume(&rdev->wiphy);
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rtnl_unlock();
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}
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return ret;
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}
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struct class ieee80211_class = {
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.name = "ieee80211",
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.owner = THIS_MODULE,
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.dev_release = wiphy_dev_release,
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.dev_attrs = ieee80211_dev_attrs,
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#ifdef CONFIG_HOTPLUG
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.dev_uevent = wiphy_uevent,
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#endif
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.suspend = wiphy_suspend,
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.resume = wiphy_resume,
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};
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int wiphy_sysfs_init(void)
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{
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return class_register(&ieee80211_class);
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}
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void wiphy_sysfs_exit(void)
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{
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class_unregister(&ieee80211_class);
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}
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