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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-11-16 03:10:56 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-11-16 03:10:56 +0000
commit5fe95d1b660bed238f8f53d6c7360f44b5ce9824 (patch)
treef75dc7eaabf7bd7baacc8cc8440484d88d3666e2 /package/mac80211/src/wireless/core.c
parenta4d094be2ac657698039b16163822b8ccd32f0d9 (diff)
fix up hostapd for mac80211
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9554 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/mac80211/src/wireless/core.c')
-rw-r--r--package/mac80211/src/wireless/core.c372
1 files changed, 0 insertions, 372 deletions
diff --git a/package/mac80211/src/wireless/core.c b/package/mac80211/src/wireless/core.c
deleted file mode 100644
index 35b79bee3..000000000
--- a/package/mac80211/src/wireless/core.c
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
- * This is the linux wireless configuration interface.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/if.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/nl80211.h>
-#include <linux/debugfs.h>
-#include <linux/notifier.h>
-#include <linux/device.h>
-#include <net/genetlink.h>
-#include <net/cfg80211.h>
-#include <net/wireless.h>
-#include "nl80211.h"
-#include "core.h"
-#include "sysfs.h"
-
-/* name for sysfs, %d is appended */
-#define PHY_NAME "phy"
-
-MODULE_AUTHOR("Johannes Berg");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("wireless configuration support");
-
-/* RCU might be appropriate here since we usually
- * only read the list, and that can happen quite
- * often because we need to do it for each command */
-LIST_HEAD(cfg80211_drv_list);
-DEFINE_MUTEX(cfg80211_drv_mutex);
-static int wiphy_counter;
-
-/* for debugfs */
-static struct dentry *ieee80211_debugfs_dir;
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
-{
- struct cfg80211_registered_device *result = NULL, *drv;
-
- list_for_each_entry(drv, &cfg80211_drv_list, list) {
- if (drv->idx == wiphy) {
- result = drv;
- break;
- }
- }
-
- return result;
-}
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *
-__cfg80211_drv_from_info(struct genl_info *info)
-{
- int ifindex;
- struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
- struct net_device *dev;
- int err = -EINVAL;
-
- if (info->attrs[NL80211_ATTR_WIPHY]) {
- bywiphy = cfg80211_drv_by_wiphy(
- nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
- err = -ENODEV;
- }
-
- if (info->attrs[NL80211_ATTR_IFINDEX]) {
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- dev = dev_get_by_index(ifindex);
- if (dev) {
- if (dev->ieee80211_ptr)
- byifidx =
- wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- dev_put(dev);
- }
- err = -ENODEV;
- }
-
- if (bywiphy && byifidx) {
- if (bywiphy != byifidx)
- return ERR_PTR(-EINVAL);
- else
- return bywiphy; /* == byifidx */
- }
- if (bywiphy)
- return bywiphy;
-
- if (byifidx)
- return byifidx;
-
- return ERR_PTR(err);
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_info(struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
-
- mutex_lock(&cfg80211_drv_mutex);
- drv = __cfg80211_drv_from_info(info);
-
- /* if it is not an error we grab the lock on
- * it to assure it won't be going away while
- * we operate on it */
- if (!IS_ERR(drv))
- mutex_lock(&drv->mtx);
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- return drv;
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex)
-{
- struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
- struct net_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
- dev = dev_get_by_index(ifindex);
- if (!dev)
- goto out;
- if (dev->ieee80211_ptr) {
- drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- mutex_lock(&drv->mtx);
- } else
- drv = ERR_PTR(-ENODEV);
- dev_put(dev);
- out:
- mutex_unlock(&cfg80211_drv_mutex);
- return drv;
-}
-
-void cfg80211_put_dev(struct cfg80211_registered_device *drv)
-{
- BUG_ON(IS_ERR(drv));
- mutex_unlock(&drv->mtx);
-}
-
-int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
- char *newname)
-{
- int idx, taken = -1, result, digits;
-
- /* prohibit calling the thing phy%d when %d is not its number */
- sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
- if (taken == strlen(newname) && idx != rdev->idx) {
- /* count number of places needed to print idx */
- digits = 1;
- while (idx /= 10)
- digits++;
- /*
- * deny the name if it is phy<idx> where <idx> is printed
- * without leading zeroes. taken == strlen(newname) here
- */
- if (taken == strlen(PHY_NAME) + digits)
- return -EINVAL;
- }
-
- /* this will check for collisions */
- result = device_rename(&rdev->wiphy.dev, newname);
- if (result)
- return result;
-
- if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
- rdev->wiphy.debugfsdir,
- rdev->wiphy.debugfsdir->d_parent,
- newname))
- printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
- newname);
-
- nl80211_notify_dev_rename(rdev);
-
- return 0;
-}
-
-/* exported functions */
-
-struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
-{
- struct cfg80211_registered_device *drv;
- int alloc_size;
-
- alloc_size = sizeof(*drv) + sizeof_priv;
-
- drv = kzalloc(alloc_size, GFP_KERNEL);
- if (!drv)
- return NULL;
-
- drv->ops = ops;
-
- mutex_lock(&cfg80211_drv_mutex);
-
- drv->idx = wiphy_counter;
-
- /* now increase counter for the next device unless
- * it has wrapped previously */
- if (wiphy_counter >= 0)
- wiphy_counter++;
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- if (unlikely(drv->idx < 0)) {
- /* ugh, wrapped! */
- kfree(drv);
- return NULL;
- }
-
- /* give it a proper name */
- snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
- PHY_NAME "%d", drv->idx);
-
- mutex_init(&drv->mtx);
- mutex_init(&drv->devlist_mtx);
- INIT_LIST_HEAD(&drv->netdev_list);
-
- device_initialize(&drv->wiphy.dev);
- drv->wiphy.dev.class = &ieee80211_class;
- drv->wiphy.dev.platform_data = drv;
-
- return &drv->wiphy;
-}
-EXPORT_SYMBOL(wiphy_new);
-
-int wiphy_register(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
- int res;
-
- mutex_lock(&cfg80211_drv_mutex);
-
- res = device_add(&drv->wiphy.dev);
- if (res)
- goto out_unlock;
-
- list_add(&drv->list, &cfg80211_drv_list);
-
- /* add to debugfs */
- drv->wiphy.debugfsdir =
- debugfs_create_dir(wiphy_name(&drv->wiphy),
- ieee80211_debugfs_dir);
-
- res = 0;
-out_unlock:
- mutex_unlock(&cfg80211_drv_mutex);
- return res;
-}
-EXPORT_SYMBOL(wiphy_register);
-
-void wiphy_unregister(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
-
- /* protect the device list */
- mutex_lock(&cfg80211_drv_mutex);
-
- BUG_ON(!list_empty(&drv->netdev_list));
-
- /*
- * Try to grab drv->mtx. If a command is still in progress,
- * hopefully the driver will refuse it since it's tearing
- * down the device already. We wait for this command to complete
- * before unlinking the item from the list.
- * Note: as codified by the BUG_ON above we cannot get here if
- * a virtual interface is still associated. Hence, we can only
- * get to lock contention here if userspace issues a command
- * that identified the hardware by wiphy index.
- */
- mutex_lock(&drv->mtx);
- /* unlock again before freeing */
- mutex_unlock(&drv->mtx);
-
- list_del(&drv->list);
- device_del(&drv->wiphy.dev);
- debugfs_remove(drv->wiphy.debugfsdir);
-
- mutex_unlock(&cfg80211_drv_mutex);
-}
-EXPORT_SYMBOL(wiphy_unregister);
-
-void cfg80211_dev_free(struct cfg80211_registered_device *drv)
-{
- mutex_destroy(&drv->mtx);
- mutex_destroy(&drv->devlist_mtx);
- kfree(drv);
-}
-
-void wiphy_free(struct wiphy *wiphy)
-{
- put_device(&wiphy->dev);
-}
-EXPORT_SYMBOL(wiphy_free);
-
-static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
- unsigned long state,
- void *ndev)
-{
- struct net_device *dev = ndev;
- struct cfg80211_registered_device *rdev;
-
- if (!dev->ieee80211_ptr)
- return 0;
-
- rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
-
- switch (state) {
- case NETDEV_REGISTER:
- mutex_lock(&rdev->devlist_mtx);
- list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
- if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
- "phy80211")) {
- printk(KERN_ERR "wireless: failed to add phy80211 "
- "symlink to netdev!\n");
- }
- dev->ieee80211_ptr->netdev = dev;
- mutex_unlock(&rdev->devlist_mtx);
- break;
- case NETDEV_UNREGISTER:
- mutex_lock(&rdev->devlist_mtx);
- if (!list_empty(&dev->ieee80211_ptr->list)) {
- sysfs_remove_link(&dev->dev.kobj, "phy80211");
- list_del_init(&dev->ieee80211_ptr->list);
- }
- mutex_unlock(&rdev->devlist_mtx);
- break;
- }
-
- return 0;
-}
-
-static struct notifier_block cfg80211_netdev_notifier = {
- .notifier_call = cfg80211_netdev_notifier_call,
-};
-
-static int cfg80211_init(void)
-{
- int err = wiphy_sysfs_init();
- if (err)
- goto out_fail_sysfs;
-
- err = register_netdevice_notifier(&cfg80211_netdev_notifier);
- if (err)
- goto out_fail_notifier;
-
- err = nl80211_init();
- if (err)
- goto out_fail_nl80211;
-
- ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
-
- return 0;
-
-out_fail_nl80211:
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
-out_fail_notifier:
- wiphy_sysfs_exit();
-out_fail_sysfs:
- return err;
-}
-subsys_initcall(cfg80211_init);
-
-static void cfg80211_exit(void)
-{
- debugfs_remove(ieee80211_debugfs_dir);
- nl80211_exit();
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
- wiphy_sysfs_exit();
-}
-module_exit(cfg80211_exit);