diff options
Diffstat (limited to 'package/mac80211/src/net/wireless')
| -rw-r--r-- | package/mac80211/src/net/wireless/Kconfig | 31 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/Makefile | 5 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/core.c | 416 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/core.h | 84 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/nl80211.c | 1282 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/nl80211.h | 24 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/radiotap.c | 261 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/reg.c | 153 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/sysfs.c | 81 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/sysfs.h | 9 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/util.c | 98 | ||||
| -rw-r--r-- | package/mac80211/src/net/wireless/wext.c | 1522 |
12 files changed, 0 insertions, 3966 deletions
diff --git a/package/mac80211/src/net/wireless/Kconfig b/package/mac80211/src/net/wireless/Kconfig deleted file mode 100644 index 7927090..0000000 --- a/package/mac80211/src/net/wireless/Kconfig +++ /dev/null @@ -1,31 +0,0 @@ -config CFG80211 - tristate "Improved wireless configuration API" - -config NL80211 - bool "nl80211 new netlink interface support" - depends on CFG80211 - default y - ---help--- - This option turns on the new netlink interface - (nl80211) support in cfg80211. - - If =n, drivers using mac80211 will be configured via - wireless extension support provided by that subsystem. - - If unsure, say Y. - -config WIRELESS_EXT - bool "Wireless extensions" - default n - ---help--- - This option enables the legacy wireless extensions - (wireless network interface configuration via ioctls.) - - Wireless extensions will be replaced by cfg80211 and - will be required only by legacy drivers that implement - wireless extension handlers. This option does not - affect the wireless-extension backward compatibility - code in cfg80211. - - Say N (if you can) unless you know you need wireless - extensions for external modules. diff --git a/package/mac80211/src/net/wireless/Makefile b/package/mac80211/src/net/wireless/Makefile deleted file mode 100644 index b9f943c..0000000 --- a/package/mac80211/src/net/wireless/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_WIRELESS_EXT) += wext.o -obj-$(CONFIG_CFG80211) += cfg80211.o - -cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o -cfg80211-$(CONFIG_NL80211) += nl80211.o diff --git a/package/mac80211/src/net/wireless/core.c b/package/mac80211/src/net/wireless/core.c deleted file mode 100644 index 80afacd..0000000 --- a/package/mac80211/src/net/wireless/core.c +++ /dev/null @@ -1,416 +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(&init_net, 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(&init_net, 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; - - WARN_ON(!ops->add_key && ops->del_key); - WARN_ON(ops->add_key && !ops->del_key); - - 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; - enum ieee80211_band band; - struct ieee80211_supported_band *sband; - bool have_band = false; - int i; - - /* sanity check supported bands/channels */ - for (band = 0; band < IEEE80211_NUM_BANDS; band++) { - sband = wiphy->bands[band]; - if (!sband) - continue; - - sband->band = band; - - if (!sband->n_channels || !sband->n_bitrates) { - WARN_ON(1); - return -EINVAL; - } - - for (i = 0; i < sband->n_channels; i++) { - sband->channels[i].orig_flags = - sband->channels[i].flags; - sband->channels[i].orig_mag = - sband->channels[i].max_antenna_gain; - sband->channels[i].orig_mpwr = - sband->channels[i].max_power; - sband->channels[i].band = band; - } - - have_band = true; - } - - if (!have_band) { - WARN_ON(1); - return -EINVAL; - } - - /* check and set up bitrates */ - ieee80211_set_bitrate_flags(wiphy); - - /* set up regulatory info */ - wiphy_update_regulatory(wiphy); - - 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); diff --git a/package/mac80211/src/net/wireless/core.h b/package/mac80211/src/net/wireless/core.h deleted file mode 100644 index 7a02c35..0000000 --- a/package/mac80211/src/net/wireless/core.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Wireless configuration interface internals. - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ -#ifndef __NET_WIRELESS_CORE_H -#define __NET_WIRELESS_CORE_H -#include <linux/mutex.h> -#include <linux/list.h> -#include <linux/netdevice.h> -#include <net/genetlink.h> -#include <net/wireless.h> -#include <net/cfg80211.h> - -struct cfg80211_registered_device { - struct cfg80211_ops *ops; - struct list_head list; - /* we hold this mutex during any call so that - * we cannot do multiple calls at once, and also - * to avoid the deregister call to proceed while - * any call is in progress */ - struct mutex mtx; - - /* wiphy index, internal only */ - int idx; - - /* associate netdev list */ - struct mutex devlist_mtx; - struct list_head netdev_list; - - /* must be last because of the way we do wiphy_priv(), - * and it should at least be aligned to NETDEV_ALIGN */ - struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); -}; - -static inline -struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) -{ - BUG_ON(!wiphy); - return container_of(wiphy, struct cfg80211_registered_device, wiphy); -} - -extern struct mutex cfg80211_drv_mutex; -extern struct list_head cfg80211_drv_list; - -/* - * This function returns a pointer to the driver - * that the genl_info item that is passed refers to. - * If successful, it returns non-NULL and also locks - * the driver's mutex! - * - * This means that you need to call cfg80211_put_dev() - * before being allowed to acquire &cfg80211_drv_mutex! - * - * This is necessary because we need to lock the global - * mutex to get an item off the list safely, and then - * we lock the drv mutex so it doesn't go away under us. - * - * We don't want to keep cfg80211_drv_mutex locked - * for all the time in order to allow requests on - * other interfaces to go through at the same time. - * - * The result of this can be a PTR_ERR and hence must - * be checked with IS_ERR() for errors. - */ -extern struct cfg80211_registered_device * -cfg80211_get_dev_from_info(struct genl_info *info); - -/* identical to cfg80211_get_dev_from_info but only operate on ifindex */ -extern struct cfg80211_registered_device * -cfg80211_get_dev_from_ifindex(int ifindex); - -extern void cfg80211_put_dev(struct cfg80211_registered_device *drv); - -/* free object */ -extern void cfg80211_dev_free(struct cfg80211_registered_device *drv); - -extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv, - char *newname); - -void ieee80211_set_bitrate_flags(struct wiphy *wiphy); -void wiphy_update_regulatory(struct wiphy *wiphy); - -#endif /* __NET_WIRELESS_CORE_H */ diff --git a/package/mac80211/src/net/wireless/nl80211.c b/package/mac80211/src/net/wireless/nl80211.c deleted file mode 100644 index 5b34747..0000000 --- a/package/mac80211/src/net/wireless/nl80211.c +++ /dev/null @@ -1,1282 +0,0 @@ -/* - * This is the new netlink-based 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/if_ether.h> -#include <linux/ieee80211.h> -#include <linux/nl80211.h> -#include <linux/rtnetlink.h> -#include <linux/netlink.h> -#include <net/genetlink.h> -#include <net/cfg80211.h> -#include "core.h" -#include "nl80211.h" - -/* the netlink family */ -static struct genl_family nl80211_fam = { - .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ - .name = "nl80211", /* have users key off the name instead */ - .hdrsize = 0, /* no private header */ - .version = 1, /* no particular meaning now */ - .maxattr = NL80211_ATTR_MAX, -}; - -/* internal helper: get drv and dev */ -static int get_drv_dev_by_info_ifindex(struct genl_info *info, - struct cfg80211_registered_device **drv, - struct net_device **dev) -{ - int ifindex; - - if (!info->attrs[NL80211_ATTR_IFINDEX]) - return -EINVAL; - - ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); - *dev = dev_get_by_index(&init_net, ifindex); - if (!*dev) - return -ENODEV; - - *drv = cfg80211_get_dev_from_ifindex(ifindex); - if (IS_ERR(*drv)) { - dev_put(*dev); - return PTR_ERR(*drv); - } - - return 0; -} - -/* policy for the attributes */ -static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { - [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, - [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, - .len = BUS_ID_SIZE-1 }, - - [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, - [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, - [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, - - [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, - - [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, - .len = WLAN_MAX_KEY_LEN }, - [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, - [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, - [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, - - [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, - [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, - [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, - .len = IEEE80211_MAX_DATA_LEN }, - [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, - .len = IEEE80211_MAX_DATA_LEN }, - [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, - [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, - [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, - [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_RATES }, - [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, - [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, -}; - -/* message building helper */ -static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, - int flags, u8 cmd) -{ - /* since there is no private header just add the generic one */ - return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); -} - -/* netlink command implementations */ - -static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, - struct cfg80211_registered_device *dev) -{ - void *hdr; - struct nlattr *nl_bands, *nl_band; - struct nlattr *nl_freqs, *nl_freq; - struct nlattr *nl_rates, *nl_rate; - enum ieee80211_band band; - struct ieee80211_channel *chan; - struct ieee80211_rate *rate; - int i; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); - NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); - - nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); - if (!nl_bands) - goto nla_put_failure; - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) { - if (!dev->wiphy.bands[band]) - continue; - - nl_band = nla_nest_start(msg, band); - if (!nl_band) - goto nla_put_failure; - - /* add frequencies */ - nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); - if (!nl_freqs) - goto nla_put_failure; - - for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { - nl_freq = nla_nest_start(msg, i); - if (!nl_freq) - goto nla_put_failure; - - chan = &dev->wiphy.bands[band]->channels[i]; - NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, - chan->center_freq); - - if (chan->flags & IEEE80211_CHAN_DISABLED) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); - if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); - if (chan->flags & IEEE80211_CHAN_NO_IBSS) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); - if (chan->flags & IEEE80211_CHAN_RADAR) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); - - nla_nest_end(msg, nl_freq); - } - - nla_nest_end(msg, nl_freqs); - - /* add bitrates */ - nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); - if (!nl_rates) - goto nla_put_failure; - - for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { - nl_rate = nla_nest_start(msg, i); - if (!nl_rate) - goto nla_put_failure; - - rate = &dev->wiphy.bands[band]->bitrates[i]; - NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, - rate->bitrate); - if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) - NLA_PUT_FLAG(msg, - NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); - - nla_nest_end(msg, nl_rate); - } - - nla_nest_end(msg, nl_rates); - - nla_nest_end(msg, nl_band); - } - nla_nest_end(msg, nl_bands); - - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - -static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) -{ - int idx = 0; - int start = cb->args[0]; - struct cfg80211_registered_device *dev; - - mutex_lock(&cfg80211_drv_mutex); - list_for_each_entry(dev, &cfg80211_drv_list, list) { - if (++idx < start) - continue; - if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, - cb->nlh->nlmsg_seq, NLM_F_MULTI, - dev) < 0) - break; - } - mutex_unlock(&cfg80211_drv_mutex); - - cb->args[0] = idx; - - return skb->len; -} - -static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) -{ - struct sk_buff *msg; - struct cfg80211_registered_device *dev; - - dev = cfg80211_get_dev_from_info(info); - if (IS_ERR(dev)) - return PTR_ERR(dev); - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out_err; - - if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) - goto out_free; - - cfg80211_put_dev(dev); - - return genlmsg_unicast(msg, info->snd_pid); - - out_free: - nlmsg_free(msg); - out_err: - cfg80211_put_dev(dev); - return -ENOBUFS; -} - -static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *rdev; - int result; - - if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) - return -EINVAL; - - rdev = cfg80211_get_dev_from_info(info); - if (IS_ERR(rdev)) - return PTR_ERR(rdev); - - result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); - - cfg80211_put_dev(rdev); - return result; -} - - -static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, - struct net_device *dev) -{ - void *hdr; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); - /* TODO: interface type */ - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - -static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) -{ - int wp_idx = 0; - int if_idx = 0; - int wp_start = cb->args[0]; - int if_start = cb->args[1]; - struct cfg80211_registered_device *dev; - struct wireless_dev *wdev; - - mutex_lock(&cfg80211_drv_mutex); - list_for_each_entry(dev, &cfg80211_drv_list, list) { - if (++wp_idx < wp_start) - continue; - if_idx = 0; - - mutex_lock(&dev->devlist_mtx); - list_for_each_entry(wdev, &dev->netdev_list, list) { - if (++if_idx < if_start) - continue; - if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, - cb->nlh->nlmsg_seq, NLM_F_MULTI, - wdev->netdev) < 0) - break; - } - mutex_unlock(&dev->devlist_mtx); - } - mutex_unlock(&cfg80211_drv_mutex); - - cb->args[0] = wp_idx; - cb->args[1] = if_idx; - - return skb->len; -} - -static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct sk_buff *msg; - struct cfg80211_registered_device *dev; - struct net_device *netdev; - int err; - - err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); - if (err) - return err; - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out_err; - - if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) - goto out_free; - - dev_put(netdev); - cfg80211_put_dev(dev); - - return genlmsg_unicast(msg, info->snd_pid); - - out_free: - nlmsg_free(msg); - out_err: - dev_put(netdev); - cfg80211_put_dev(dev); - return -ENOBUFS; -} - -static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { - [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, -}; - -static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) -{ - struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; - int flag; - - *mntrflags = 0; - - if (!nla) - return -EINVAL; - - if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, - nla, mntr_flags_policy)) - return -EINVAL; - - for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) - if (flags[flag]) - *mntrflags |= (1<<flag); - - return 0; -} - -static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err, ifindex; - enum nl80211_iftype type; - struct net_device *dev; - u32 flags; - - if (info->attrs[NL80211_ATTR_IFTYPE]) { - type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); - if (type > NL80211_IFTYPE_MAX) - return -EINVAL; - } else - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - ifindex = dev->ifindex; - dev_put(dev); - - if (!drv->ops->change_virtual_intf) { - err = -EOPNOTSUPP; - goto unlock; - } - - rtnl_lock(); - err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? - info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, - &flags); - err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, - type, err ? NULL : &flags); - rtnl_unlock(); - - unlock: - cfg80211_put_dev(drv); - return err; -} - -static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; - u32 flags; - - if (!info->attrs[NL80211_ATTR_IFNAME]) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_IFTYPE]) { - type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); - if (type > NL80211_IFTYPE_MAX) - return -EINVAL; - } - - drv = cfg80211_get_dev_from_info(info); - if (IS_ERR(drv)) - return PTR_ERR(drv); - - if (!drv->ops->add_virtual_intf) { - err = -EOPNOTSUPP; - goto unlock; - } - - rtnl_lock(); - err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? - info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, - &flags); - err = drv->ops->add_virtual_intf(&drv->wiphy, - nla_data(info->attrs[NL80211_ATTR_IFNAME]), - type, err ? NULL : &flags); - rtnl_unlock(); - - unlock: - cfg80211_put_dev(drv); - return err; -} - -static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int ifindex, err; - struct net_device *dev; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - ifindex = dev->ifindex; - dev_put(dev); - - if (!drv->ops->del_virtual_intf) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - return err; -} - -struct get_key_cookie { - struct sk_buff *msg; - int error; -}; - -static void get_key_callback(void *c, struct key_params *params) -{ - struct get_key_cookie *cookie = c; - - if (params->key) - NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, - params->key_len, params->key); - - if (params->seq) - NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, - params->seq_len, params->seq); - - if (params->cipher) - NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, - params->cipher); - - return; - nla_put_failure: - cookie->error = 1; -} - -static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx = 0; - u8 *mac_addr = NULL; - struct get_key_cookie cookie = { - .error = 0, - }; - void *hdr; - struct sk_buff *msg; - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->get_key) { - err = -EOPNOTSUPP; - goto out; - } - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } - - hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, - NL80211_CMD_NEW_KEY); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); - goto out; - } - - cookie.msg = msg; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); - if (mac_addr) - NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - - rtnl_lock(); - err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, - &cookie, get_key_callback); - rtnl_unlock(); - - if (err) - goto out; - - if (cookie.error) - goto nla_put_failure; - - genlmsg_end(msg, hdr); - err = genlmsg_unicast(msg, info->snd_pid); - goto out; - - nla_put_failure: - err = -ENOBUFS; - nlmsg_free(msg); - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx; - - if (!info->attrs[NL80211_ATTR_KEY_IDX]) - return -EINVAL; - - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - /* currently only support setting default key */ - if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->set_default_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct key_params params; - u8 key_idx = 0; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_KEY_DATA]) { - params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); - params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); - } - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - if (key_idx > 3) - return -EINVAL; - - /* - * Disallow pairwise keys with non-zero index unless it's WEP - * (because current deployments use pairwise WEP keys with - * non-zero indizes but 802.11i clearly specifies to use zero) - */ - if (mac_addr && key_idx && - params.cipher != WLAN_CIPHER_SUITE_WEP40 && - params.cipher != WLAN_CIPHER_SUITE_WEP104) - return -EINVAL; - - /* TODO: add definitions for the lengths to linux/ieee80211.h */ - switch (params.cipher) { - case WLAN_CIPHER_SUITE_WEP40: - if (params.key_len != 5) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_TKIP: - if (params.key_len != 32) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_CCMP: - if (params.key_len != 16) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_WEP104: - if (params.key_len != 13) - return -EINVAL; - break; - default: - return -EINVAL; - } - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->add_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx = 0; - u8 *mac_addr = NULL; - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) -{ - int (*call)(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *info); - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct beacon_parameters params; - int haveinfo = 0; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - switch (info->genlhdr->cmd) { - case NL80211_CMD_NEW_BEACON: - /* these are required for NEW_BEACON */ - if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || - !info->attrs[NL80211_ATTR_DTIM_PERIOD] || - !info->attrs[NL80211_ATTR_BEACON_HEAD]) { - err = -EINVAL; - goto out; - } - - call = drv->ops->add_beacon; - break; - case NL80211_CMD_SET_BEACON: - call = drv->ops->set_beacon; - break; - default: - WARN_ON(1); - err = -EOPNOTSUPP; - goto out; - } - - if (!call) { - err = -EOPNOTSUPP; - goto out; - } - - memset(¶ms, 0, sizeof(params)); - - if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { - params.interval = - nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { - params.dtim_period = - nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { - params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); - params.head_len = - nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { - params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); - params.tail_len = - nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); - haveinfo = 1; - } - - if (!haveinfo) { - err = -EINVAL; - goto out; - } - - rtnl_lock(); - err = call(&drv->wiphy, dev, ¶ms); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_beacon) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_beacon(&drv->wiphy, dev); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { - [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, - [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, - [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, -}; - -static int parse_station_flags(struct nlattr *nla, u32 *staflags) -{ - struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; - int flag; - - *staflags = 0; - - if (!nla) - return 0; - - if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, - nla, sta_flags_policy)) - return -EINVAL; - - *staflags = STATION_FLAG_CHANGED; - - for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) - if (flags[flag]) - *staflags |= (1<<flag); - - return 0; -} - -static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, - int flags, struct net_device *dev, - u8 *mac_addr, struct station_stats *stats) -{ - void *hdr; - struct nlattr *statsattr; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - - statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS); - if (!statsattr) - goto nla_put_failure; - if (stats->filled & STATION_STAT_INACTIVE_TIME) - NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME, - stats->inactive_time); - if (stats->filled & STATION_STAT_RX_BYTES) - NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES, - stats->rx_bytes); - if (stats->filled & STATION_STAT_TX_BYTES) - NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES, - stats->tx_bytes); - - nla_nest_end(msg, statsattr); - - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - - -static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_stats stats; - struct sk_buff *msg; - u8 *mac_addr = NULL; - - memset(&stats, 0, sizeof(stats)); - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->get_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats); - rtnl_unlock(); - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out; - - if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, - dev, mac_addr, &stats) < 0) - goto out_free; - - err = genlmsg_unicast(msg, info->snd_pid); - goto out; - - out_free: - nlmsg_free(msg); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -/* - * Get vlan interface making sure it is on the right wiphy. - */ -static int get_vlan(struct nlattr *vlanattr, - struct cfg80211_registered_device *rdev, - struct net_device **vlan) -{ - *vlan = NULL; - - if (vlanattr) { - *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); - if (!*vlan) - return -ENODEV; - if (!(*vlan)->ieee80211_ptr) - return -EINVAL; - if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) - return -EINVAL; - } - return 0; -} - -static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_parameters params; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - params.listen_interval = -1; - - if (info->attrs[NL80211_ATTR_STA_AID]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { - params.supported_rates = - nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.supported_rates_len = - nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - } - - if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) - params.listen_interval = - nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); - - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); - if (err) - goto out; - - if (!drv->ops->change_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); - rtnl_unlock(); - - out: - if (params.vlan) - dev_put(params.vlan); - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_parameters params; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_AID]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - params.supported_rates = - nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.supported_rates_len = - nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.listen_interval = - nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); - params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); - - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); - if (err) - goto out; - - if (!drv->ops->add_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); - rtnl_unlock(); - - out: - if (params.vlan) - dev_put(params.vlan); - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 *mac_addr = NULL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static struct genl_ops nl80211_ops[] = { - { - .cmd = NL80211_CMD_GET_WIPHY, - .doit = nl80211_get_wiphy, - .dumpit = nl80211_dump_wiphy, - .policy = nl80211_policy, - /* can be retrieved by unprivileged users */ - }, - { - .cmd = NL80211_CMD_SET_WIPHY, - .doit = nl80211_set_wiphy, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_GET_INTERFACE, - .doit = nl80211_get_interface, - .dumpit = nl80211_dump_interface, - .policy = nl80211_policy, - /* can be retrieved by unprivileged users */ - }, - { - .cmd = NL80211_CMD_SET_INTERFACE, - .doit = nl80211_set_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_INTERFACE, - .doit = nl80211_new_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_INTERFACE, - .doit = nl80211_del_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_GET_KEY, - .doit = nl80211_get_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_KEY, - .doit = nl80211_set_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_KEY, - .doit = nl80211_new_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_KEY, - .doit = nl80211_del_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_addset_beacon, - }, - { - .cmd = NL80211_CMD_NEW_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_addset_beacon, - }, - { - .cmd = NL80211_CMD_DEL_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_del_beacon, - }, - { - .cmd = NL80211_CMD_GET_STATION, - .doit = nl80211_get_station, - /* TODO: implement dumpit */ - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_STATION, - .doit = nl80211_set_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_STATION, - .doit = nl80211_new_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_STATION, - .doit = nl80211_del_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, -}; - -/* multicast groups */ -static struct genl_multicast_group nl80211_config_mcgrp = { - .name = "config", -}; - -/* notification functions */ - -void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) -{ - struct sk_buff *msg; - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - return; - - if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { - nlmsg_free(msg); - return; - } - - genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); -} - -/* initialisation/exit functions */ - -int nl80211_init(void) -{ - int err, i; - - err = genl_register_family(&nl80211_fam); - if (err) - return err; - - for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { - err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); - if (err) - goto err_out; - } - - err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); - if (err) - goto err_out; - - return 0; - err_out: - genl_unregister_family(&nl80211_fam); - return err; -} - -void nl80211_exit(void) -{ - genl_unregister_family(&nl80211_fam); -} diff --git a/package/mac80211/src/net/wireless/nl80211.h b/package/mac80211/src/net/wireless/nl80211.h deleted file mode 100644 index f3ea5c0..0000000 --- a/package/mac80211/src/net/wireless/nl80211.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef __NET_WIRELESS_NL80211_H -#define __NET_WIRELESS_NL80211_H - -#include "core.h" - -#ifdef CONFIG_NL80211 -extern int nl80211_init(void); -extern void nl80211_exit(void); -extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev); -#else -static inline int nl80211_init(void) -{ - return 0; -} -static inline void nl80211_exit(void) -{ -} -static inline void nl80211_notify_dev_rename( - struct cfg80211_registered_device *rdev) -{ -} -#endif /* CONFIG_NL80211 */ - -#endif /* __NET_WIRELESS_NL80211_H */ diff --git a/package/mac80211/src/net/wireless/radiotap.c b/package/mac80211/src/net/wireless/radiotap.c deleted file mode 100644 index 28fbd0b..0000000 --- a/package/mac80211/src/net/wireless/radiotap.c +++ /dev/null @@ -1,261 +0,0 @@ -/* - * Radiotap parser - * - * Copyright 2007 Andy Green <andy@warmcat.com> - */ - -#include <net/cfg80211.h> -#include <net/ieee80211_radiotap.h> -#include <asm/unaligned.h> - -/* function prototypes and related defs are in include/net/cfg80211.h */ - -/** - * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization - * @iterator: radiotap_iterator to initialize - * @radiotap_header: radiotap header to parse - * @max_length: total length we can parse into (eg, whole packet length) - * - * Returns: 0 or a negative error code if there is a problem. - * - * This function initializes an opaque iterator struct which can then - * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap - * argument which is present in the header. It knows about extended - * present headers and handles them. - * - * How to use: - * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator - * struct ieee80211_radiotap_iterator (no need to init the struct beforehand) - * checking for a good 0 return code. Then loop calling - * __ieee80211_radiotap_iterator_next()... it returns either 0, - * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem. - * The iterator's @this_arg member points to the start of the argument - * associated with the current argument index that is present, which can be - * found in the iterator's @this_arg_index member. This arg index corresponds - * to the IEEE80211_RADIOTAP_... defines. - * - * Radiotap header length: - * You can find the CPU-endian total radiotap header length in - * iterator->max_length after executing ieee80211_radiotap_iterator_init() - * successfully. - * - * Alignment Gotcha: - * You must take care when dereferencing iterator.this_arg - * for multibyte types... the pointer is not aligned. Use - * get_unaligned((type *)iterator.this_arg) to dereference - * iterator.this_arg for type "type" safely on all arches. - * - * Example code: - * See Documentation/networking/radiotap-headers.txt - */ - -int ieee80211_radiotap_iterator_init( - struct ieee80211_radiotap_iterator *iterator, - struct ieee80211_radiotap_header *radiotap_header, - int max_length) -{ - /* Linux only supports version 0 radiotap format */ - if (radiotap_header->it_version) - return -EINVAL; - - /* sanity check for allowed length and radiotap length field */ - if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len))) - return -EINVAL; - - iterator->rtheader = radiotap_header; - iterator->max_length = le16_to_cpu(get_unaligned( - &radiotap_header->it_len)); - iterator->arg_index = 0; - iterator->bitmap_shifter = le32_to_cpu(get_unaligned( - &radiotap_header->it_present)); - iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header); - iterator->this_arg = NULL; - - /* find payload start allowing for extended bitmap(s) */ - - if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) { - while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) & - (1<<IEEE80211_RADIOTAP_EXT)) { - iterator->arg += sizeof(u32); - - /* - * check for insanity where the present bitmaps - * keep claiming to extend up to or even beyond the - * stated radiotap header length - */ - - if (((ulong)iterator->arg - - (ulong)iterator->rtheader) > iterator->max_length) - return -EINVAL; - } - - iterator->arg += sizeof(u32); - - /* - * no need to check again for blowing past stated radiotap - * header length, because ieee80211_radiotap_iterator_next - * checks it before it is dereferenced - */ - } - - /* we are all initialized happily */ - - return 0; -} -EXPORT_SYMBOL(ieee80211_radiotap_iterator_init); - - -/** - * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg - * @iterator: radiotap_iterator to move to next arg (if any) - * - * Returns: 0 if there is an argument to handle, - * -ENOENT if there are no more args or -EINVAL - * if there is something else wrong. - * - * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*) - * in @this_arg_index and sets @this_arg to point to the - * payload for the field. It takes care of alignment handling and extended - * present fields. @this_arg can be changed by the caller (eg, - * incremented to move inside a compound argument like - * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in - * little-endian format whatever the endianess of your CPU. - * - * Alignment Gotcha: - * You must take care when dereferencing iterator.this_arg - * for multibyte types... the pointer is not aligned. Use - * get_unaligned((type *)iterator.this_arg) to dereference - * iterator.this_arg for type "type" safely on all arches. - */ - -int ieee80211_radiotap_iterator_next( - struct ieee80211_radiotap_iterator *iterator) -{ - - /* - * small length lookup table for all radiotap types we heard of - * starting from b0 in the bitmap, so we can walk the payload - * area of the radiotap header - * - * There is a requirement to pad args, so that args - * of a given length must begin at a boundary of that length - * -- but note that compound args are allowed (eg, 2 x u16 - * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not - * a reliable indicator of alignment requirement. - * - * upper nybble: content alignment for arg - * lower nybble: content length for arg - */ - - static const u8 rt_sizes[] = { - [IEEE80211_RADIOTAP_TSFT] = 0x88, - [IEEE80211_RADIOTAP_FLAGS] = 0x11, - [IEEE80211_RADIOTAP_RATE] = 0x11, - [IEEE80211_RADIOTAP_CHANNEL] = 0x24, - [IEEE80211_RADIOTAP_FHSS] = 0x22, - [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22, - [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11, - [IEEE80211_RADIOTAP_ANTENNA] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11, - [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11, - /* - * add more here as they are defined in - * include/net/ieee80211_radiotap.h - */ - }; - - /* - * for every radiotap entry we can at - * least skip (by knowing the length)... - */ - - while (iterator->arg_index < sizeof(rt_sizes)) { - int hit = 0; - int pad; - - if (!(iterator->bitmap_shifter & 1)) - goto next_entry; /* arg not present */ - - /* - * arg is present, account for alignment padding - * 8-bit args can be at any alignment - * 16-bit args must start on 16-bit boundary - * 32-bit args must start on 32-bit boundary - * 64-bit args must start on 64-bit boundary - * - * note that total arg size can differ from alignment of - * elements inside arg, so we use upper nybble of length - * table to base alignment on - * - * also note: these alignments are ** relative to the - * start of the radiotap header **. There is no guarantee - * that the radiotap header itself is aligned on any - * kind of boundary. - * - * the above is why get_unaligned() is used to dereference - * multibyte elements from the radiotap area - */ - - pad = (((ulong)iterator->arg) - - ((ulong)iterator->rtheader)) & - ((rt_sizes[iterator->arg_index] >> 4) - 1); - - if (pad) - iterator->arg += - (rt_sizes[iterator->arg_index] >> 4) - pad; - - /* - * this is what we will return to user, but we need to - * move on first so next call has something fresh to test - */ - iterator->this_arg_index = iterator->arg_index; - iterator->this_arg = iterator->arg; - hit = 1; - - /* internally move on the size of this arg */ - iterator->arg += rt_sizes[iterator->arg_index] & 0x0f; - - /* - * check for insanity where we are given a bitmap that - * claims to have more arg content than the length of the - * radiotap section. We will normally end up equalling this - * max_length on the last arg, never exceeding it. - */ - - if (((ulong)iterator->arg - (ulong)iterator->rtheader) > - iterator->max_length) - return -EINVAL; - - next_entry: - iterator->arg_index++; - if (unlikely((iterator->arg_index & 31) == 0)) { - /* completed current u32 bitmap */ - if (iterator->bitmap_shifter & 1) { - /* b31 was set, there is more */ - /* move to next u32 bitmap */ - iterator->bitmap_shifter = le32_to_cpu( - get_unaligned(iterator->next_bitmap)); - iterator->next_bitmap++; - } else - /* no more bitmaps: end */ - iterator->arg_index = sizeof(rt_sizes); - } else /* just try the next bit */ - iterator->bitmap_shifter >>= 1; - - /* if we found a valid arg earlier, return it now */ - if (hit) - return 0; - } - - /* we don't know how to handle any more args, we're done */ - return -ENOENT; -} -EXPORT_SYMBOL(ieee80211_radiotap_iterator_next); diff --git a/package/mac80211/src/net/wireless/reg.c b/package/mac80211/src/net/wireless/reg.c deleted file mode 100644 index 2b63c96..0000000 --- a/package/mac80211/src/net/wireless/reg.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This regulatory domain control implementation is highly incomplete, it - * only exists for the purpose of not regressing mac80211. - * - * For now, drivers can restrict the set of allowed channels by either - * not registering those channels or setting the IEEE80211_CHAN_DISABLED - * flag; that flag will only be *set* by this code, never *cleared. - * - * The usual implementation is for a driver to read a device EEPROM to - * determine which regulatory domain it should be operating under, then - * looking up the allowable channels in a driver-local table and finally - * registering those channels in the wiphy structure. - * - * Alternatively, drivers that trust the regulatory domain control here - * will register a complete set of capabilities and the control code - * will restrict the set by setting the IEEE80211_CHAN_* flags. - */ -#include <linux/kernel.h> -#include <net/wireless.h> -#include "core.h" - -static char *ieee80211_regdom = "US"; -module_param(ieee80211_regdom, charp, 0444); -MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code"); - -struct ieee80211_channel_range { - short start_freq; - short end_freq; - int max_power; - int max_antenna_gain; - u32 flags; -}; - -struct ieee80211_regdomain { - const char *code; - const struct ieee80211_channel_range *ranges; - int n_ranges; -}; - -#define RANGE_PWR(_start, _end, _pwr, _ag, _flags) \ - { _start, _end, _pwr, _ag, _flags } - - -/* - * Ideally, in the future, these definitions will be loaded from a - * userspace table via some daemon. - */ -static const struct ieee80211_channel_range ieee80211_US_channels[] = { - /* IEEE 802.11b/g, channels 1..11 */ - RANGE_PWR(2412, 2462, 27, 6, 0), - /* IEEE 802.11a, channels 52..64 */ - RANGE_PWR(5260, 5320, 23, 6, 0), - /* IEEE 802.11a, channels 149..165, outdoor */ - RANGE_PWR(5745, 5825, 30, 6, 0), -}; - -static const struct ieee80211_channel_range ieee80211_JP_channels[] = { - /* IEEE 802.11b/g, channels 1..14 */ - RANGE_PWR(2412, 2484, 20, 6, 0), - /* IEEE 802.11a, channels 34..48 */ - RANGE_PWR(5170, 5240, 20, 6, IEEE80211_CHAN_PASSIVE_SCAN), - /* IEEE 802.11a, channels 52..64 */ - RANGE_PWR(5260, 5320, 20, 6, IEEE80211_CHAN_NO_IBSS | - IEEE80211_CHAN_RADAR), -}; - -#define REGDOM(_code) \ - { \ - .code = __stringify(_code), \ - .ranges = ieee80211_ ##_code## _channels, \ - .n_ranges = ARRAY_SIZE(ieee80211_ ##_code## _channels), \ - } - -static const struct ieee80211_regdomain ieee80211_regdoms[] = { - REGDOM(US), - REGDOM(JP), -}; - - -static const struct ieee80211_regdomain *get_regdom(void) -{ - static const struct ieee80211_channel_range - ieee80211_world_channels[] = { - /* IEEE 802.11b/g, channels 1..11 */ - RANGE_PWR(2412, 2462, 27, 6, 0), - }; - static const struct ieee80211_regdomain regdom_world = REGDOM(world); - int i; - - for (i = 0; i < ARRAY_SIZE(ieee80211_regdoms); i++) - if (strcmp(ieee80211_regdom, ieee80211_regdoms[i].code) == 0) - return &ieee80211_regdoms[i]; - - return ®dom_world; -} - - -static void handle_channel(struct ieee80211_channel *chan, - const struct ieee80211_regdomain *rd) -{ - int i; - u32 flags = chan->orig_flags; - const struct ieee80211_channel_range *rg = NULL; - - for (i = 0; i < rd->n_ranges; i++) { - if (rd->ranges[i].start_freq <= chan->center_freq && - chan->center_freq <= rd->ranges[i].end_freq) { - rg = &rd->ranges[i]; - break; - } - } - - if (!rg) { - /* not found */ - flags |= IEEE80211_CHAN_DISABLED; - chan->flags = flags; - return; - } - - chan->flags = flags; - chan->max_antenna_gain = min(chan->orig_mag, - rg->max_antenna_gain); - chan->max_power = min(chan->orig_mpwr, rg->max_power); -} - -static void handle_band(struct ieee80211_supported_band *sband, - const struct ieee80211_regdomain *rd) -{ - int i; - - for (i = 0; i < sband->n_channels; i++) - handle_channel(&sband->channels[i], rd); -} - -void wiphy_update_regulatory(struct wiphy *wiphy) -{ - enum ieee80211_band band; - const struct ieee80211_regdomain *rd = get_regdom(); - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) - if (wiphy->bands[band]) - handle_band(wiphy->bands[band], rd); -} diff --git a/package/mac80211/src/net/wireless/sysfs.c b/package/mac80211/src/net/wireless/sysfs.c deleted file mode 100644 index 29f820e..0000000 --- a/package/mac80211/src/net/wireless/sysfs.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * This file provides /sys/class/ieee80211/<wiphy name>/ - * and some default attributes. - * - * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz> - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * This file is GPLv2 as found in COPYING. - */ - -#include <linux/device.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/nl80211.h> -#include <linux/rtnetlink.h> -#include <net/cfg80211.h> -#include "sysfs.h" -#include "core.h" - -static inline struct cfg80211_registered_device *dev_to_rdev( - struct device *dev) -{ - return container_of(dev, struct cfg80211_registered_device, wiphy.dev); -} - -static ssize_t _show_index(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx); -} - -static ssize_t _show_permaddr(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr; - - return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", - addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); -} - -static struct device_attribute ieee80211_dev_attrs[] = { - __ATTR(index, S_IRUGO, _show_index, NULL), - __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL), - {} -}; - -static void wiphy_dev_release(struct device *dev) -{ - struct cfg80211_registered_device *rdev = dev_to_rdev(dev); - - cfg80211_dev_free(rdev); -} - -#ifdef CONFIG_HOTPLUG -static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - /* TODO, we probably need stuff here */ - return 0; -} -#endif - -struct class ieee80211_class = { - .name = "ieee80211", - .owner = THIS_MODULE, - .dev_release = wiphy_dev_release, - .dev_attrs = ieee80211_dev_attrs, -#ifdef CONFIG_HOTPLUG - .dev_uevent = wiphy_uevent, -#endif -}; - -int wiphy_sysfs_init(void) -{ - return class_register(&ieee80211_class); -} - -void wiphy_sysfs_exit(void) -{ - class_unregister(&ieee80211_class); -} diff --git a/package/mac80211/src/net/wireless/sysfs.h b/package/mac80211/src/net/wireless/sysfs.h deleted file mode 100644 index 65acbeb..0000000 --- a/package/mac80211/src/net/wireless/sysfs.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef __WIRELESS_SYSFS_H -#define __WIRELESS_SYSFS_H - -extern int wiphy_sysfs_init(void); -extern void wiphy_sysfs_exit(void); - -extern struct class ieee80211_class; - -#endif /* __WIRELESS_SYSFS_H */ diff --git a/package/mac80211/src/net/wireless/util.c b/package/mac80211/src/net/wireless/util.c deleted file mode 100644 index 77336c2..0000000 --- a/package/mac80211/src/net/wireless/util.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Wireless utility functions - * - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - */ -#include <net/wireless.h> -#include <asm/bitops.h> -#include "core.h" - -int ieee80211_channel_to_frequency(int chan) -{ - if (chan < 14) - return 2407 + chan * 5; - - if (chan == 14) - return 2484; - - /* FIXME: 802.11j 17.3.8.3.2 */ - return (chan + 1000) * 5; -} -EXPORT_SYMBOL(ieee80211_channel_to_frequency); - -int ieee80211_frequency_to_channel(int freq) -{ - if (freq == 2484) - return 14; - - if (freq < 2484) - return (freq - 2407) / 5; - - /* FIXME: 802.11j 17.3.8.3.2 */ - return freq/5 - 1000; -} -EXPORT_SYMBOL(ieee80211_frequency_to_channel); - -static void set_mandatory_flags_band(struct ieee80211_supported_band *sband, - enum ieee80211_band band) -{ - int i, want; - - switch (band) { - case IEEE80211_BAND_5GHZ: - want = 3; - for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 60 || - sband->bitrates[i].bitrate == 120 || - sband->bitrates[i].bitrate == 240) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_A; - want--; - } - } - WARN_ON(want); - break; - case IEEE80211_BAND_2GHZ: - want = 7; - for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 10) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_B | - IEEE80211_RATE_MANDATORY_G; - want--; - } - - if (sband->bitrates[i].bitrate == 20 || - sband->bitrates[i].bitrate == 55 || - sband->bitrates[i].bitrate == 110 || - sband->bitrates[i].bitrate == 60 || - sband->bitrates[i].bitrate == 120 || - sband->bitrates[i].bitrate == 240) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_G; - want--; - } - - if (sband->bitrates[i].bitrate != 10 && - sband->bitrates[i].bitrate != 20 && - sband->bitrates[i].bitrate != 55 && - sband->bitrates[i].bitrate != 110) - sband->bitrates[i].flags |= - IEEE80211_RATE_ERP_G; - } - WARN_ON(want != 0 && want != 3 && want != 6); - break; - case IEEE80211_NUM_BANDS: - WARN_ON(1); - break; - } -} - -void ieee80211_set_bitrate_flags(struct wiphy *wiphy) -{ - enum ieee80211_band band; - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) - if (wiphy->bands[band]) - set_mandatory_flags_band(wiphy->bands[band], band); -} diff --git a/package/mac80211/src/net/wireless/wext.c b/package/mac80211/src/net/wireless/wext.c deleted file mode 100644 index a2d496f..0000000 --- a/package/mac80211/src/net/wireless/wext.c +++ /dev/null @@ -1,1522 +0,0 @@ -/* - * This file implement the Wireless Extensions APIs. - * - * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved. - * - * (As all part of the Linux kernel, this file is GPL) - */ - -/************************** DOCUMENTATION **************************/ -/* - * API definition : - * -------------- - * See <linux/wireless.h> for details of the APIs and the rest. - * - * History : - * ------- - * - * v1 - 5.12.01 - Jean II - * o Created this file. - * - * v2 - 13.12.01 - Jean II - * o Move /proc/net/wireless stuff from net/core/dev.c to here - * o Make Wireless Extension IOCTLs go through here - * o Added iw_handler handling ;-) - * o Added standard ioctl description - * o Initial dumb commit strategy based on orinoco.c - * - * v3 - 19.12.01 - Jean II - * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call - * o Add event dispatcher function - * o Add event description - * o Propagate events as rtnetlink IFLA_WIRELESS option - * o Generate event on selected SET requests - * - * v4 - 18.04.02 - Jean II - * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1 - * - * v5 - 21.06.02 - Jean II - * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup) - * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes - * o Add IWEVCUSTOM for driver specific event/scanning token - * o Turn on WE_STRICT_WRITE by default + kernel warning - * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num) - * o Fix off-by-one in test (extra_size <= IFNAMSIZ) - * - * v6 - 9.01.03 - Jean II - * o Add common spy support : iw_handler_set_spy(), wireless_spy_update() - * o Add enhanced spy support : iw_handler_set_thrspy() and event. - * o Add WIRELESS_EXT version display in /proc/net/wireless - * - * v6 - 18.06.04 - Jean II - * o Change get_spydata() method for added safety - * o Remove spy #ifdef, they are always on -> cleaner code - * o Allow any size GET request if user specifies length > max - * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV - * o Start migrating get_wireless_stats to struct iw_handler_def - * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus - * Based on patch from Pavel Roskin <proski@gnu.org> : - * o Fix kernel data leak to user space in private handler handling - * - * v7 - 18.3.05 - Jean II - * o Remove (struct iw_point *)->pointer from events and streams - * o Remove spy_offset from struct iw_handler_def - * o Start deprecating dev->get_wireless_stats, output a warning - * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless - * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats) - * - * v8 - 17.02.06 - Jean II - * o RtNetlink requests support (SET/GET) - * - * v8b - 03.08.06 - Herbert Xu - * o Fix Wireless Event locking issues. - * - * v9 - 14.3.06 - Jean II - * o Change length in ESSID and NICK to strlen() instead of strlen()+1 - * o Make standard_ioctl_num and standard_event_num unsigned - * o Remove (struct net_device *)->get_wireless_stats() - * - * v10 - 16.3.07 - Jean II - * o Prevent leaking of kernel space in stream on 64 bits. - */ - -/***************************** INCLUDES *****************************/ - -#include <linux/module.h> -#include <linux/types.h> /* off_t */ -#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */ -#include <linux/proc_fs.h> -#include <linux/rtnetlink.h> /* rtnetlink stuff */ -#include <linux/seq_file.h> -#include <linux/init.h> /* for __init */ -#include <linux/if_arp.h> /* ARPHRD_ETHER */ -#include <linux/etherdevice.h> /* compare_ether_addr */ -#include <linux/interrupt.h> -#include <net/net_namespace.h> - -#include <linux/wireless.h> /* Pretty obvious */ -#include <net/iw_handler.h> /* New driver API */ -#include <net/netlink.h> -#include <net/wext.h> - -#include <asm/uaccess.h> /* copy_to_user() */ - -/************************* GLOBAL VARIABLES *************************/ -/* - * You should not use global variables, because of re-entrancy. - * On our case, it's only const, so it's OK... - */ -/* - * Meta-data about all the standard Wireless Extension request we - * know about. - */ -static const struct iw_ioctl_description standard_ioctl[] = { - [SIOCSIWCOMMIT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWNAME - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_CHAR, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWNWID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWNWID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWFREQ - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_FREQ, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWFREQ - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_FREQ, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWMODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_UINT, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWMODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_UINT, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWSENS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWSENS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRANGE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWRANGE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_range), - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWPRIV - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_priv_args), - .max_tokens = 16, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWSTATS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_statistics), - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr), - .max_tokens = IW_MAX_SPY, - }, - [SIOCGIWSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr) + - sizeof(struct iw_quality), - .max_tokens = IW_MAX_SPY, - }, - [SIOCSIWTHRSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_thrspy), - .min_tokens = 1, - .max_tokens = 1, - }, - [SIOCGIWTHRSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_thrspy), - .min_tokens = 1, - .max_tokens = 1, - }, - [SIOCSIWAP - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [SIOCGIWAP - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWMLME - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_mlme), - .max_tokens = sizeof(struct iw_mlme), - }, - [SIOCGIWAPLIST - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr) + - sizeof(struct iw_quality), - .max_tokens = IW_MAX_AP, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWSCAN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = 0, - .max_tokens = sizeof(struct iw_scan_req), - }, - [SIOCGIWSCAN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_SCAN_MAX_DATA, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWESSID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWESSID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWNICKN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - }, - [SIOCGIWNICKN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - }, - [SIOCSIWRATE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRATE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRTS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRTS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWFRAG - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWFRAG - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWTXPOW - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWTXPOW - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRETRY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRETRY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWENCODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ENCODING_TOKEN_MAX, - .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT, - }, - [SIOCGIWENCODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ENCODING_TOKEN_MAX, - .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT, - }, - [SIOCSIWPOWER - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWPOWER - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWGENIE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [SIOCGIWGENIE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [SIOCSIWAUTH - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWAUTH - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWENCODEEXT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_encode_ext), - .max_tokens = sizeof(struct iw_encode_ext) + - IW_ENCODING_TOKEN_MAX, - }, - [SIOCGIWENCODEEXT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_encode_ext), - .max_tokens = sizeof(struct iw_encode_ext) + - IW_ENCODING_TOKEN_MAX, - }, - [SIOCSIWPMKSA - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_pmksa), - .max_tokens = sizeof(struct iw_pmksa), - }, -}; -static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl); - -/* - * Meta-data about all the additional standard Wireless Extension events - * we know about. - */ -static const struct iw_ioctl_description standard_event[] = { - [IWEVTXDROP - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVQUAL - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_QUAL, - }, - [IWEVCUSTOM - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_CUSTOM_MAX, - }, - [IWEVREGISTERED - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVEXPIRED - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVGENIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVMICHAELMICFAILURE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_michaelmicfailure), - }, - [IWEVASSOCREQIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVASSOCRESPIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVPMKIDCAND - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_pmkid_cand), - }, -}; -static const unsigned standard_event_num = ARRAY_SIZE(standard_event); - -/* Size (in bytes) of the various private data types */ -static const char iw_priv_type_size[] = { - 0, /* IW_PRIV_TYPE_NONE */ - 1, /* IW_PRIV_TYPE_BYTE */ - 1, /* IW_PRIV_TYPE_CHAR */ - 0, /* Not defined */ - sizeof(__u32), /* IW_PRIV_TYPE_INT */ - sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */ - sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */ - 0, /* Not defined */ -}; - -/* Size (in bytes) of various events */ -static const int event_type_size[] = { - IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */ - 0, - IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */ - 0, - IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */ - IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */ - IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */ - 0, - IW_EV_POINT_LEN, /* Without variable payload */ - IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */ - IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */ -}; - - -/************************ COMMON SUBROUTINES ************************/ -/* - * Stuff that may be used in various place or doesn't fit in one - * of the section below. - */ - -/* ---------------------------------------------------------------- */ -/* - * Return the driver handler associated with a specific Wireless Extension. - */ -static iw_handler get_handler(struct net_device *dev, unsigned int cmd) -{ - /* Don't "optimise" the following variable, it will crash */ - unsigned int index; /* *MUST* be unsigned */ - - /* Check if we have some wireless handlers defined */ - if (dev->wireless_handlers == NULL) - return NULL; - - /* Try as a standard command */ - index = cmd - SIOCIWFIRST; - if (index < dev->wireless_handlers->num_standard) - return dev->wireless_handlers->standard[index]; - - /* Try as a private command */ - index = cmd - SIOCIWFIRSTPRIV; - if (index < dev->wireless_handlers->num_private) - return dev->wireless_handlers->private[index]; - - /* Not found */ - return NULL; -} - -/* ---------------------------------------------------------------- */ -/* - * Get statistics out of the driver - */ -static struct iw_statistics *get_wireless_stats(struct net_device *dev) -{ - /* New location */ - if ((dev->wireless_handlers != NULL) && - (dev->wireless_handlers->get_wireless_stats != NULL)) - return dev->wireless_handlers->get_wireless_stats(dev); - - /* Not found */ - return NULL; -} - -/* ---------------------------------------------------------------- */ -/* - * Call the commit handler in the driver - * (if exist and if conditions are right) - * - * Note : our current commit strategy is currently pretty dumb, - * but we will be able to improve on that... - * The goal is to try to agreagate as many changes as possible - * before doing the commit. Drivers that will define a commit handler - * are usually those that need a reset after changing parameters, so - * we want to minimise the number of reset. - * A cool idea is to use a timer : at each "set" command, we re-set the - * timer, when the timer eventually fires, we call the driver. - * Hopefully, more on that later. - * - * Also, I'm waiting to see how many people will complain about the - * netif_running(dev) test. I'm open on that one... - * Hopefully, the driver will remember to do a commit in "open()" ;-) - */ -static int call_commit_handler(struct net_device *dev) -{ - if ((netif_running(dev)) && - (dev->wireless_handlers->standard[0] != NULL)) - /* Call the commit handler on the driver */ - return dev->wireless_handlers->standard[0](dev, NULL, - NULL, NULL); - else - return 0; /* Command completed successfully */ -} - -/* ---------------------------------------------------------------- */ -/* - * Calculate size of private arguments - */ -static inline int get_priv_size(__u16 args) -{ - int num = args & IW_PRIV_SIZE_MASK; - int type = (args & IW_PRIV_TYPE_MASK) >> 12; - - return num * iw_priv_type_size[type]; -} - -/* ---------------------------------------------------------------- */ -/* - * Re-calculate the size of private arguments - */ -static inline int adjust_priv_size(__u16 args, - union iwreq_data * wrqu) -{ - int num = wrqu->data.length; - int max = args & IW_PRIV_SIZE_MASK; - int type = (args & IW_PRIV_TYPE_MASK) >> 12; - - /* Make sure the driver doesn't goof up */ - if (max < num) - num = max; - - return num * iw_priv_type_size[type]; -} - -/* ---------------------------------------------------------------- */ -/* - * Standard Wireless Handler : get wireless stats - * Allow programatic access to /proc/net/wireless even if /proc - * doesn't exist... Also more efficient... - */ -static int iw_handler_get_iwstats(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - /* Get stats from the driver */ - struct iw_statistics *stats; - - stats = get_wireless_stats(dev); - if (stats) { - /* Copy statistics to extra */ - memcpy(extra, stats, sizeof(struct iw_statistics)); - wrqu->data.length = sizeof(struct iw_statistics); - - /* Check if we need to clear the updated flag */ - if (wrqu->data.flags != 0) - stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; - return 0; - } else - return -EOPNOTSUPP; -} - -/* ---------------------------------------------------------------- */ -/* - * Standard Wireless Handler : get iwpriv definitions - * Export the driver private handler definition - * They will be picked up by tools like iwpriv... - */ -static int iw_handler_get_private(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - /* Check if the driver has something to export */ - if ((dev->wireless_handlers->num_private_args == 0) || - (dev->wireless_handlers->private_args == NULL)) - return -EOPNOTSUPP; - - /* Check if there is enough buffer up there */ - if (wrqu->data.length < dev->wireless_handlers->num_private_args) { - /* User space can't know in advance how large the buffer - * needs to be. Give it a hint, so that we can support - * any size buffer we want somewhat efficiently... */ - wrqu->data.length = dev->wireless_handlers->num_private_args; - return -E2BIG; - } - - /* Set the number of available ioctls. */ - wrqu->data.length = dev->wireless_handlers->num_private_args; - - /* Copy structure to the user buffer. */ - memcpy(extra, dev->wireless_handlers->private_args, - sizeof(struct iw_priv_args) * wrqu->data.length); - - return 0; -} - - -/******************** /proc/net/wireless SUPPORT ********************/ -/* - * The /proc/net/wireless file is a human readable user-space interface - * exporting various wireless specific statistics from the wireless devices. - * This is the most popular part of the Wireless Extensions ;-) - * - * This interface is a pure clone of /proc/net/dev (in net/core/dev.c). - * The content of the file is basically the content of "struct iw_statistics". - */ - -#ifdef CONFIG_PROC_FS - -/* ---------------------------------------------------------------- */ -/* - * Print one entry (line) of /proc/net/wireless - */ -static void wireless_seq_printf_stats(struct seq_file *seq, - struct net_device *dev) -{ - /* Get stats from the driver */ - struct iw_statistics *stats = get_wireless_stats(dev); - - if (stats) { - seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d " - "%6d %6d %6d\n", - dev->name, stats->status, stats->qual.qual, - stats->qual.updated & IW_QUAL_QUAL_UPDATED - ? '.' : ' ', - ((__s32) stats->qual.level) - - ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), - stats->qual.updated & IW_QUAL_LEVEL_UPDATED - ? '.' : ' ', - ((__s32) stats->qual.noise) - - ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), - stats->qual.updated & IW_QUAL_NOISE_UPDATED - ? '.' : ' ', - stats->discard.nwid, stats->discard.code, - stats->discard.fragment, stats->discard.retries, - stats->discard.misc, stats->miss.beacon); - stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; - } -} - -/* ---------------------------------------------------------------- */ -/* - * Print info for /proc/net/wireless (print all entries) - */ -static int wireless_seq_show(struct seq_file *seq, void *v) -{ - if (v == SEQ_START_TOKEN) - seq_printf(seq, "Inter-| sta-| Quality | Discarded " - "packets | Missed | WE\n" - " face | tus | link level noise | nwid " - "crypt frag retry misc | beacon | %d\n", - WIRELESS_EXT); - else - wireless_seq_printf_stats(seq, v); - return 0; -} - -static const struct seq_operations wireless_seq_ops = { - .start = dev_seq_start, - .next = dev_seq_next, - .stop = dev_seq_stop, - .show = wireless_seq_show, -}; - -static int wireless_seq_open(struct inode *inode, struct file *file) -{ - struct seq_file *seq; - int res; - res = seq_open(file, &wireless_seq_ops); - if (!res) { - seq = file->private_data; - seq->private = get_proc_net(inode); - if (!seq->private) { - seq_release(inode, file); - res = -ENXIO; - } - } - return res; -} - -static int wireless_seq_release(struct inode *inode, struct file *file) -{ - struct seq_file *seq = file->private_data; - struct net *net = seq->private; - put_net(net); - return seq_release(inode, file); -} - -static const struct file_operations wireless_seq_fops = { - .owner = THIS_MODULE, - .open = wireless_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = wireless_seq_release, -}; - -int wext_proc_init(struct net *net) -{ - /* Create /proc/net/wireless entry */ - if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops)) - return -ENOMEM; - - return 0; -} - -void wext_proc_exit(struct net *net) -{ - proc_net_remove(net, "wireless"); -} -#endif /* CONFIG_PROC_FS */ - -/************************** IOCTL SUPPORT **************************/ -/* - * The original user space API to configure all those Wireless Extensions - * is through IOCTLs. - * In there, we check if we need to call the new driver API (iw_handler) - * or just call the driver ioctl handler. - */ - -/* ---------------------------------------------------------------- */ -/* - * Wrapper to call a standard Wireless Extension handler. - * We do various checks and also take care of moving data between - * user space and kernel space. - */ -static int ioctl_standard_call(struct net_device * dev, - struct ifreq * ifr, - unsigned int cmd, - iw_handler handler) -{ - struct iwreq * iwr = (struct iwreq *) ifr; - const struct iw_ioctl_description * descr; - struct iw_request_info info; - int ret = -EINVAL; - - /* Get the description of the IOCTL */ - if ((cmd - SIOCIWFIRST) >= standard_ioctl_num) - return -EOPNOTSUPP; - descr = &(standard_ioctl[cmd - SIOCIWFIRST]); - - /* Prepare the call */ - info.cmd = cmd; - info.flags = 0; - - /* Check if we have a pointer to user space data or not */ - if (descr->header_type != IW_HEADER_TYPE_POINT) { - - /* No extra arguments. Trivial to handle */ - ret = handler(dev, &info, &(iwr->u), NULL); - - /* Generate an event to notify listeners of the change */ - if ((descr->flags & IW_DESCR_FLAG_EVENT) && - ((ret == 0) || (ret == -EIWCOMMIT))) - wireless_send_event(dev, cmd, &(iwr->u), NULL); - } else { - char * extra; - int extra_size; - int user_length = 0; - int err; - int essid_compat = 0; - - /* Calculate space needed by arguments. Always allocate - * for max space. Easier, and won't last long... */ - extra_size = descr->max_tokens * descr->token_size; - - /* Check need for ESSID compatibility for WE < 21 */ - switch (cmd) { - case SIOCSIWESSID: - case SIOCGIWESSID: - case SIOCSIWNICKN: - case SIOCGIWNICKN: - if (iwr->u.data.length == descr->max_tokens + 1) - essid_compat = 1; - else if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - char essid[IW_ESSID_MAX_SIZE + 1]; - - err = copy_from_user(essid, iwr->u.data.pointer, - iwr->u.data.length * - descr->token_size); - if (err) - return -EFAULT; - - if (essid[iwr->u.data.length - 1] == '\0') - essid_compat = 1; - } - break; - default: - break; - } - - iwr->u.data.length -= essid_compat; - - /* Check what user space is giving us */ - if (IW_IS_SET(cmd)) { - /* Check NULL pointer */ - if ((iwr->u.data.pointer == NULL) && - (iwr->u.data.length != 0)) - return -EFAULT; - /* Check if number of token fits within bounds */ - if (iwr->u.data.length > descr->max_tokens) - return -E2BIG; - if (iwr->u.data.length < descr->min_tokens) - return -EINVAL; - } else { - /* Check NULL pointer */ - if (iwr->u.data.pointer == NULL) - return -EFAULT; - /* Save user space buffer size for checking */ - user_length = iwr->u.data.length; - - /* Don't check if user_length > max to allow forward - * compatibility. The test user_length < min is - * implied by the test at the end. */ - - /* Support for very large requests */ - if ((descr->flags & IW_DESCR_FLAG_NOMAX) && - (user_length > descr->max_tokens)) { - /* Allow userspace to GET more than max so - * we can support any size GET requests. - * There is still a limit : -ENOMEM. */ - extra_size = user_length * descr->token_size; - /* Note : user_length is originally a __u16, - * and token_size is controlled by us, - * so extra_size won't get negative and - * won't overflow... */ - } - } - - /* Create the kernel buffer */ - /* kzalloc ensures NULL-termination for essid_compat */ - extra = kzalloc(extra_size, GFP_KERNEL); - if (extra == NULL) - return -ENOMEM; - - /* If it is a SET, get all the extra data in here */ - if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - err = copy_from_user(extra, iwr->u.data.pointer, - iwr->u.data.length * - descr->token_size); - if (err) { - kfree(extra); - return -EFAULT; - } - } - - /* Call the handler */ - ret = handler(dev, &info, &(iwr->u), extra); - - iwr->u.data.length += essid_compat; - - /* If we have something to return to the user */ - if (!ret && IW_IS_GET(cmd)) { - /* Check if there is enough buffer up there */ - if (user_length < iwr->u.data.length) { - kfree(extra); - return -E2BIG; - } - - err = copy_to_user(iwr->u.data.pointer, extra, - iwr->u.data.length * - descr->token_size); - if (err) - ret = -EFAULT; - } - - /* Generate an event to notify listeners of the change */ - if ((descr->flags & IW_DESCR_FLAG_EVENT) && - ((ret == 0) || (ret == -EIWCOMMIT))) { - if (descr->flags & IW_DESCR_FLAG_RESTRICT) - /* If the event is restricted, don't - * export the payload */ - wireless_send_event(dev, cmd, &(iwr->u), NULL); - else - wireless_send_event(dev, cmd, &(iwr->u), - extra); - } - - /* Cleanup - I told you it wasn't that long ;-) */ - kfree(extra); - } - - /* Call commit handler if needed and defined */ - if (ret == -EIWCOMMIT) - ret = call_commit_handler(dev); - - /* Here, we will generate the appropriate event if needed */ - - return ret; -} - -/* ---------------------------------------------------------------- */ -/* - * Wrapper to call a private Wireless Extension handler. - * We do various checks and also take care of moving data between - * user space and kernel space. - * It's not as nice and slimline as the standard wrapper. The cause - * is struct iw_priv_args, which was not really designed for the - * job we are going here. - * - * IMPORTANT : This function prevent to set and get data on the same - * IOCTL and enforce the SET/GET convention. Not doing it would be - * far too hairy... - * If you need to set and get data at the same time, please don't use - * a iw_handler but process it in your ioctl handler (i.e. use the - * old driver API). - */ -static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr, - unsigned int cmd, iw_handler handler) -{ - struct iwreq * iwr = (struct iwreq *) ifr; - const struct iw_priv_args * descr = NULL; - struct iw_request_info info; - int extra_size = 0; - int i; - int ret = -EINVAL; - - /* Get the description of the IOCTL */ - for (i = 0; i < dev->wireless_handlers->num_private_args; i++) - if (cmd == dev->wireless_handlers->private_args[i].cmd) { - descr = &(dev->wireless_handlers->private_args[i]); - break; - } - - /* Compute the size of the set/get arguments */ - if (descr != NULL) { - if (IW_IS_SET(cmd)) { - int offset = 0; /* For sub-ioctls */ - /* Check for sub-ioctl handler */ - if (descr->name[0] == '\0') - /* Reserve one int for sub-ioctl index */ - offset = sizeof(__u32); - - /* Size of set arguments */ - extra_size = get_priv_size(descr->set_args); - - /* Does it fits in iwr ? */ - if ((descr->set_args & IW_PRIV_SIZE_FIXED) && - ((extra_size + offset) <= IFNAMSIZ)) - extra_size = 0; - } else { - /* Size of get arguments */ - extra_size = get_priv_size(descr->get_args); - - /* Does it fits in iwr ? */ - if ((descr->get_args & IW_PRIV_SIZE_FIXED) && - (extra_size <= IFNAMSIZ)) - extra_size = 0; - } - } - - /* Prepare the call */ - info.cmd = cmd; - info.flags = 0; - - /* Check if we have a pointer to user space data or not. */ - if (extra_size == 0) { - /* No extra arguments. Trivial to handle */ - ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u)); - } else { - char * extra; - int err; - - /* Check what user space is giving us */ - if (IW_IS_SET(cmd)) { - /* Check NULL pointer */ - if ((iwr->u.data.pointer == NULL) && - (iwr->u.data.length != 0)) - return -EFAULT; - - /* Does it fits within bounds ? */ - if (iwr->u.data.length > (descr->set_args & - IW_PRIV_SIZE_MASK)) - return -E2BIG; - } else if (iwr->u.data.pointer == NULL) - return -EFAULT; - - /* Always allocate for max space. Easier, and won't last - * long... */ - extra = kmalloc(extra_size, GFP_KERNEL); - if (extra == NULL) - return -ENOMEM; - - /* If it is a SET, get all the extra data in here */ - if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - err = copy_from_user(extra, iwr->u.data.pointer, - extra_size); - if (err) { - kfree(extra); - return -EFAULT; - } - } - - /* Call the handler */ - ret = handler(dev, &info, &(iwr->u), extra); - - /* If we have something to return to the user */ - if (!ret && IW_IS_GET(cmd)) { - - /* Adjust for the actual length if it's variable, - * avoid leaking kernel bits outside. */ - if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) { - extra_size = adjust_priv_size(descr->get_args, - &(iwr->u)); - } - - err = copy_to_user(iwr->u.data.pointer, extra, - extra_size); - if (err) - ret = -EFAULT; - } - - /* Cleanup - I told you it wasn't that long ;-) */ - kfree(extra); - } - - - /* Call commit handler if needed and defined */ - if (ret == -EIWCOMMIT) - ret = call_commit_handler(dev); - - return ret; -} - -/* ---------------------------------------------------------------- */ -/* - * Main IOCTl dispatcher. - * Check the type of IOCTL and call the appropriate wrapper... - */ -static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd) -{ - struct net_device *dev; - iw_handler handler; - - /* Permissions are already checked in dev_ioctl() before calling us. - * The copy_to/from_user() of ifr is also dealt with in there */ - - /* Make sure the device exist */ - if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL) - return -ENODEV; - - /* A bunch of special cases, then the generic case... - * Note that 'cmd' is already filtered in dev_ioctl() with - * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */ - if (cmd == SIOCGIWSTATS) - return ioctl_standard_call(dev, ifr, cmd, - &iw_handler_get_iwstats); - - if (cmd == SIOCGIWPRIV && dev->wireless_handlers) - return ioctl_standard_call(dev, ifr, cmd, - &iw_handler_get_private); - - /* Basic check */ - if (!netif_device_present(dev)) - return -ENODEV; - - /* New driver API : try to find the handler */ - handler = get_handler(dev, cmd); - if (handler) { - /* Standard and private are not the same */ - if (cmd < SIOCIWFIRSTPRIV) - return ioctl_standard_call(dev, ifr, cmd, handler); - else - return ioctl_private_call(dev, ifr, cmd, handler); - } - /* Old driver API : call driver ioctl handler */ - if (dev->do_ioctl) - return dev->do_ioctl(dev, ifr, cmd); - return -EOPNOTSUPP; -} - -/* entry point from dev ioctl */ -int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd, - void __user *arg) -{ - int ret; - - /* If command is `set a parameter', or - * `get the encoding parameters', check if - * the user has the right to do it */ - if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT) - && !capable(CAP_NET_ADMIN)) - return -EPERM; - - dev_load(net, ifr->ifr_name); - rtnl_lock(); - ret = wireless_process_ioctl(net, ifr, cmd); - rtnl_unlock(); - if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct iwreq))) - return -EFAULT; - return ret; -} - -/************************* EVENT PROCESSING *************************/ -/* - * Process events generated by the wireless layer or the driver. - * Most often, the event will be propagated through rtnetlink - */ - -/* ---------------------------------------------------------------- */ -/* - * Locking... - * ---------- - * - * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing - * the locking issue in here and implementing this code ! - * - * The issue : wireless_send_event() is often called in interrupt context, - * while the Netlink layer can never be called in interrupt context. - * The fully formed RtNetlink events are queued, and then a tasklet is run - * to feed those to Netlink. - * The skb_queue is interrupt safe, and its lock is not held while calling - * Netlink, so there is no possibility of dealock. - * Jean II - */ - -static struct sk_buff_head wireless_nlevent_queue; - -static int __init wireless_nlevent_init(void) -{ - skb_queue_head_init(&wireless_nlevent_queue); - return 0; -} - -subsys_initcall(wireless_nlevent_init); - -static void wireless_nlevent_process(unsigned long data) -{ - struct sk_buff *skb; - - while ((skb = skb_dequeue(&wireless_nlevent_queue))) - rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC); -} - -static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0); - -/* ---------------------------------------------------------------- */ -/* - * Fill a rtnetlink message with our event data. - * Note that we propage only the specified event and don't dump the - * current wireless config. Dumping the wireless config is far too - * expensive (for each parameter, the driver need to query the hardware). - */ -static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev, - int type, char *event, int event_len) -{ - struct ifinfomsg *r; - struct nlmsghdr *nlh; - - nlh = nlmsg_put(skb, 0, 0, type, sizeof(*r), 0); - if (nlh == NULL) - return -EMSGSIZE; - - r = nlmsg_data(nlh); - r->ifi_family = AF_UNSPEC; - r->__ifi_pad = 0; - r->ifi_type = dev->type; - r->ifi_index = dev->ifindex; - r->ifi_flags = dev_get_flags(dev); - r->ifi_change = 0; /* Wireless changes don't affect those flags */ - - /* Add the wireless events in the netlink packet */ - NLA_PUT(skb, IFLA_WIRELESS, event_len, event); - - return nlmsg_end(skb, nlh); - -nla_put_failure: - nlmsg_cancel(skb, nlh); - return -EMSGSIZE; -} - -/* ---------------------------------------------------------------- */ -/* - * Create and broadcast and send it on the standard rtnetlink socket - * This is a pure clone rtmsg_ifinfo() in net/core/rtnetlink.c - * Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field - * within a RTM_NEWLINK event. - */ -static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len) -{ - struct sk_buff *skb; - int err; - - skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); - if (!skb) - return; - - err = rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK, event, event_len); - if (err < 0) { - WARN_ON(err == -EMSGSIZE); - kfree_skb(skb); - return; - } - - NETLINK_CB(skb).dst_group = RTNLGRP_LINK; - skb_queue_tail(&wireless_nlevent_queue, skb); - tasklet_schedule(&wireless_nlevent_tasklet); -} - -/* ---------------------------------------------------------------- */ -/* - * Main event dispatcher. Called from other parts and drivers. - * Send the event on the appropriate channels. - * May be called from interrupt context. - */ -void wireless_send_event(struct net_device * dev, - unsigned int cmd, - union iwreq_data * wrqu, - char * extra) -{ - const struct iw_ioctl_description * descr = NULL; - int extra_len = 0; - struct iw_event *event; /* Mallocated whole event */ - int event_len; /* Its size */ - int hdr_len; /* Size of the event header */ - int wrqu_off = 0; /* Offset in wrqu */ - /* Don't "optimise" the following variable, it will crash */ - unsigned cmd_index; /* *MUST* be unsigned */ - - /* Get the description of the Event */ - if (cmd <= SIOCIWLAST) { - cmd_index = cmd - SIOCIWFIRST; - if (cmd_index < standard_ioctl_num) - descr = &(standard_ioctl[cmd_index]); - } else { - cmd_index = cmd - IWEVFIRST; - if (cmd_index < standard_event_num) - descr = &(standard_event[cmd_index]); - } - /* Don't accept unknown events */ - if (descr == NULL) { - /* Note : we don't return an error to the driver, because - * the driver would not know what to do about it. It can't - * return an error to the user, because the event is not - * initiated by a user request. - * The best the driver could do is to log an error message. - * We will do it ourselves instead... - */ - printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n", - dev->name, cmd); - return; - } - - /* Check extra parameters and set extra_len */ - if (descr->header_type == IW_HEADER_TYPE_POINT) { - /* Check if number of token fits within bounds */ - if (wrqu->data.length > descr->max_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length); - return; - } - if (wrqu->data.length < descr->min_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length); - return; - } - /* Calculate extra_len - extra is NULL for restricted events */ - if (extra != NULL) - extra_len = wrqu->data.length * descr->token_size; - /* Always at an offset in wrqu */ - wrqu_off = IW_EV_POINT_OFF; - } - - /* Total length of the event */ - hdr_len = event_type_size[descr->header_type]; - event_len = hdr_len + extra_len; - - /* Create temporary buffer to hold the event */ - event = kmalloc(event_len, GFP_ATOMIC); - if (event == NULL) - return; - - /* Fill event */ - event->len = event_len; - event->cmd = cmd; - memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN); - if (extra) - memcpy(((char *) event) + hdr_len, extra, extra_len); - - /* Send via the RtNetlink event channel */ - rtmsg_iwinfo(dev, (char *) event, event_len); - - /* Cleanup */ - kfree(event); - - return; /* Always success, I guess ;-) */ -} -EXPORT_SYMBOL(wireless_send_event); - -/********************** ENHANCED IWSPY SUPPORT **********************/ -/* - * In the old days, the driver was handling spy support all by itself. - * Now, the driver can delegate this task to Wireless Extensions. - * It needs to use those standard spy iw_handler in struct iw_handler_def, - * push data to us via wireless_spy_update() and include struct iw_spy_data - * in its private part (and export it in net_device->wireless_data->spy_data). - * One of the main advantage of centralising spy support here is that - * it becomes much easier to improve and extend it without having to touch - * the drivers. One example is the addition of the Spy-Threshold events. - */ - -/* ---------------------------------------------------------------- */ -/* - * Return the pointer to the spy data in the driver. - * Because this is called on the Rx path via wireless_spy_update(), - * we want it to be efficient... - */ -static inline struct iw_spy_data *get_spydata(struct net_device *dev) -{ - /* This is the new way */ - if (dev->wireless_data) - return dev->wireless_data->spy_data; - return NULL; -} - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : set Spy List - */ -int iw_handler_set_spy(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct sockaddr * address = (struct sockaddr *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Disable spy collection while we copy the addresses. - * While we copy addresses, any call to wireless_spy_update() - * will NOP. This is OK, as anyway the addresses are changing. */ - spydata->spy_number = 0; - - /* We want to operate without locking, because wireless_spy_update() - * most likely will happen in the interrupt handler, and therefore - * have its own locking constraints and needs performance. - * The rtnl_lock() make sure we don't race with the other iw_handlers. - * This make sure wireless_spy_update() "see" that the spy list - * is temporarily disabled. */ - smp_wmb(); - - /* Are there are addresses to copy? */ - if (wrqu->data.length > 0) { - int i; - - /* Copy addresses */ - for (i = 0; i < wrqu->data.length; i++) - memcpy(spydata->spy_address[i], address[i].sa_data, - ETH_ALEN); - /* Reset stats */ - memset(spydata->spy_stat, 0, - sizeof(struct iw_quality) * IW_MAX_SPY); - } - - /* Make sure above is updated before re-enabling */ - smp_wmb(); - - /* Enable addresses */ - spydata->spy_number = wrqu->data.length; - - return 0; -} -EXPORT_SYMBOL(iw_handler_set_spy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : get Spy List - */ -int iw_handler_get_spy(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct sockaddr * address = (struct sockaddr *) extra; - int i; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - wrqu->data.length = spydata->spy_number; - - /* Copy addresses. */ - for (i = 0; i < spydata->spy_number; i++) { - memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN); - address[i].sa_family = AF_UNIX; - } - /* Copy stats to the user buffer (just after). */ - if (spydata->spy_number > 0) - memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number), - spydata->spy_stat, - sizeof(struct iw_quality) * spydata->spy_number); - /* Reset updated flags. */ - for (i = 0; i < spydata->spy_number; i++) - spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED; - return 0; -} -EXPORT_SYMBOL(iw_handler_get_spy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : set spy threshold - */ -int iw_handler_set_thrspy(struct net_device * dev, - struct iw_request_info *info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct iw_thrspy * threshold = (struct iw_thrspy *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Just do it */ - memcpy(&(spydata->spy_thr_low), &(threshold->low), - 2 * sizeof(struct iw_quality)); - - /* Clear flag */ - memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under)); - - return 0; -} -EXPORT_SYMBOL(iw_handler_set_thrspy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : get spy threshold - */ -int iw_handler_get_thrspy(struct net_device * dev, - struct iw_request_info *info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct iw_thrspy * threshold = (struct iw_thrspy *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Just do it */ - memcpy(&(threshold->low), &(spydata->spy_thr_low), - 2 * sizeof(struct iw_quality)); - - return 0; -} -EXPORT_SYMBOL(iw_handler_get_thrspy); - -/*------------------------------------------------------------------*/ -/* - * Prepare and send a Spy Threshold event - */ -static void iw_send_thrspy_event(struct net_device * dev, - struct iw_spy_data * spydata, - unsigned char * address, - struct iw_quality * wstats) -{ - union iwreq_data wrqu; - struct iw_thrspy threshold; - - /* Init */ - wrqu.data.length = 1; - wrqu.data.flags = 0; - /* Copy address */ - memcpy(threshold.addr.sa_data, address, ETH_ALEN); - threshold.addr.sa_family = ARPHRD_ETHER; - /* Copy stats */ - memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality)); - /* Copy also thresholds */ - memcpy(&(threshold.low), &(spydata->spy_thr_low), - 2 * sizeof(struct iw_quality)); - - /* Send event to user space */ - wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold); -} - -/* ---------------------------------------------------------------- */ -/* - * Call for the driver to update the spy data. - * For now, the spy data is a simple array. As the size of the array is - * small, this is good enough. If we wanted to support larger number of - * spy addresses, we should use something more efficient... - */ -void wireless_spy_update(struct net_device * dev, - unsigned char * address, - struct iw_quality * wstats) -{ - struct iw_spy_data * spydata = get_spydata(dev); - int i; - int match = -1; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return; - - /* Update all records that match */ - for (i = 0; i < spydata->spy_number; i++) - if (!compare_ether_addr(address, spydata->spy_address[i])) { - memcpy(&(spydata->spy_stat[i]), wstats, - sizeof(struct iw_quality)); - match = i; - } - - /* Generate an event if we cross the spy threshold. - * To avoid event storms, we have a simple hysteresis : we generate - * event only when we go under the low threshold or above the - * high threshold. */ - if (match >= 0) { - if (spydata->spy_thr_under[match]) { - if (wstats->level > spydata->spy_thr_high.level) { - spydata->spy_thr_under[match] = 0; - iw_send_thrspy_event(dev, spydata, - address, wstats); - } - } else { - if (wstats->level < spydata->spy_thr_low.level) { - spydata->spy_thr_under[match] = 1; - iw_send_thrspy_event(dev, spydata, - address, wstats); - } - } - } -} -EXPORT_SYMBOL(wireless_spy_update); |