9aed3cc124
A new nl80211 command, NL80211_CMD_SET_MGMT_EXTRA_IE, can be used to add arbitrary IE data into the end of management frames. The interface allows extra IEs to be configured for each management frame subtype, but only some of them (ProbeReq, ProbeResp, Auth, (Re)AssocReq, Deauth, Disassoc) are currently accepted in mac80211 implementation. This makes it easier to implement IEEE 802.11 extensions like WPS and FT that add IE(s) into some management frames. In addition, this can be useful for testing and experimentation purposes. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1290 lines
30 KiB
C
1290 lines
30 KiB
C
/*
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* mac80211 configuration hooks for cfg80211
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*
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* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
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*
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* This file is GPLv2 as found in COPYING.
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*/
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#include <linux/ieee80211.h>
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <net/net_namespace.h>
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#include <linux/rcupdate.h>
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#include <net/cfg80211.h>
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#include "ieee80211_i.h"
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#include "cfg.h"
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#include "rate.h"
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#include "mesh.h"
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static bool nl80211_type_check(enum nl80211_iftype type)
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{
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switch (type) {
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case NL80211_IFTYPE_ADHOC:
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case NL80211_IFTYPE_STATION:
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case NL80211_IFTYPE_MONITOR:
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#ifdef CONFIG_MAC80211_MESH
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case NL80211_IFTYPE_MESH_POINT:
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#endif
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case NL80211_IFTYPE_AP:
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case NL80211_IFTYPE_AP_VLAN:
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case NL80211_IFTYPE_WDS:
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return true;
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default:
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return false;
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}
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}
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static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params)
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{
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struct ieee80211_local *local = wiphy_priv(wiphy);
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struct net_device *dev;
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struct ieee80211_sub_if_data *sdata;
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int err;
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if (!nl80211_type_check(type))
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return -EINVAL;
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err = ieee80211_if_add(local, name, &dev, type, params);
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if (err || type != NL80211_IFTYPE_MONITOR || !flags)
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return err;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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sdata->u.mntr_flags = *flags;
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return 0;
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}
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static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
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{
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struct net_device *dev;
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struct ieee80211_sub_if_data *sdata;
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/* we're under RTNL */
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dev = __dev_get_by_index(&init_net, ifindex);
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if (!dev)
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return -ENODEV;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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ieee80211_if_remove(sdata);
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return 0;
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}
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static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params)
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{
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struct net_device *dev;
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struct ieee80211_sub_if_data *sdata;
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int ret;
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/* we're under RTNL */
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dev = __dev_get_by_index(&init_net, ifindex);
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if (!dev)
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return -ENODEV;
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if (!nl80211_type_check(type))
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return -EINVAL;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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ret = ieee80211_if_change_type(sdata, type);
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if (ret)
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return ret;
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if (netif_running(sdata->dev))
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return -EBUSY;
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if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
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ieee80211_sdata_set_mesh_id(sdata,
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params->mesh_id_len,
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params->mesh_id);
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if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
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return 0;
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sdata->u.mntr_flags = *flags;
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return 0;
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}
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static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
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u8 key_idx, u8 *mac_addr,
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struct key_params *params)
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{
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta = NULL;
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enum ieee80211_key_alg alg;
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struct ieee80211_key *key;
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int err;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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switch (params->cipher) {
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case WLAN_CIPHER_SUITE_WEP40:
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case WLAN_CIPHER_SUITE_WEP104:
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alg = ALG_WEP;
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break;
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case WLAN_CIPHER_SUITE_TKIP:
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alg = ALG_TKIP;
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break;
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case WLAN_CIPHER_SUITE_CCMP:
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alg = ALG_CCMP;
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break;
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case WLAN_CIPHER_SUITE_AES_CMAC:
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alg = ALG_AES_CMAC;
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break;
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default:
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return -EINVAL;
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}
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key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
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if (!key)
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return -ENOMEM;
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rcu_read_lock();
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if (mac_addr) {
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sta = sta_info_get(sdata->local, mac_addr);
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if (!sta) {
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ieee80211_key_free(key);
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err = -ENOENT;
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goto out_unlock;
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}
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}
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ieee80211_key_link(key, sdata, sta);
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err = 0;
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out_unlock:
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rcu_read_unlock();
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return err;
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}
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static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
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u8 key_idx, u8 *mac_addr)
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{
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta;
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int ret;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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rcu_read_lock();
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if (mac_addr) {
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ret = -ENOENT;
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sta = sta_info_get(sdata->local, mac_addr);
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if (!sta)
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goto out_unlock;
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if (sta->key) {
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ieee80211_key_free(sta->key);
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WARN_ON(sta->key);
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ret = 0;
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}
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goto out_unlock;
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}
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if (!sdata->keys[key_idx]) {
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ret = -ENOENT;
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goto out_unlock;
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}
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ieee80211_key_free(sdata->keys[key_idx]);
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WARN_ON(sdata->keys[key_idx]);
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ret = 0;
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out_unlock:
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rcu_read_unlock();
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return ret;
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}
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static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
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u8 key_idx, u8 *mac_addr, void *cookie,
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void (*callback)(void *cookie,
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struct key_params *params))
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{
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta = NULL;
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u8 seq[6] = {0};
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struct key_params params;
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struct ieee80211_key *key;
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u32 iv32;
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u16 iv16;
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int err = -ENOENT;
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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rcu_read_lock();
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if (mac_addr) {
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sta = sta_info_get(sdata->local, mac_addr);
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if (!sta)
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goto out;
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key = sta->key;
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} else
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key = sdata->keys[key_idx];
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if (!key)
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goto out;
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memset(¶ms, 0, sizeof(params));
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switch (key->conf.alg) {
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case ALG_TKIP:
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params.cipher = WLAN_CIPHER_SUITE_TKIP;
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iv32 = key->u.tkip.tx.iv32;
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iv16 = key->u.tkip.tx.iv16;
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if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
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sdata->local->ops->get_tkip_seq)
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sdata->local->ops->get_tkip_seq(
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local_to_hw(sdata->local),
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key->conf.hw_key_idx,
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&iv32, &iv16);
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seq[0] = iv16 & 0xff;
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seq[1] = (iv16 >> 8) & 0xff;
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seq[2] = iv32 & 0xff;
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seq[3] = (iv32 >> 8) & 0xff;
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seq[4] = (iv32 >> 16) & 0xff;
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seq[5] = (iv32 >> 24) & 0xff;
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params.seq = seq;
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params.seq_len = 6;
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break;
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case ALG_CCMP:
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params.cipher = WLAN_CIPHER_SUITE_CCMP;
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seq[0] = key->u.ccmp.tx_pn[5];
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seq[1] = key->u.ccmp.tx_pn[4];
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seq[2] = key->u.ccmp.tx_pn[3];
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seq[3] = key->u.ccmp.tx_pn[2];
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seq[4] = key->u.ccmp.tx_pn[1];
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seq[5] = key->u.ccmp.tx_pn[0];
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params.seq = seq;
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params.seq_len = 6;
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break;
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case ALG_WEP:
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if (key->conf.keylen == 5)
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params.cipher = WLAN_CIPHER_SUITE_WEP40;
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else
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params.cipher = WLAN_CIPHER_SUITE_WEP104;
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break;
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case ALG_AES_CMAC:
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params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
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seq[0] = key->u.aes_cmac.tx_pn[5];
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seq[1] = key->u.aes_cmac.tx_pn[4];
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seq[2] = key->u.aes_cmac.tx_pn[3];
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seq[3] = key->u.aes_cmac.tx_pn[2];
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seq[4] = key->u.aes_cmac.tx_pn[1];
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seq[5] = key->u.aes_cmac.tx_pn[0];
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params.seq = seq;
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params.seq_len = 6;
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break;
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}
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params.key = key->conf.key;
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params.key_len = key->conf.keylen;
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callback(cookie, ¶ms);
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err = 0;
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out:
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rcu_read_unlock();
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return err;
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}
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static int ieee80211_config_default_key(struct wiphy *wiphy,
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struct net_device *dev,
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u8 key_idx)
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{
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struct ieee80211_sub_if_data *sdata;
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rcu_read_lock();
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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ieee80211_set_default_key(sdata, key_idx);
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rcu_read_unlock();
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return 0;
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}
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static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
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struct net_device *dev,
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u8 key_idx)
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{
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struct ieee80211_sub_if_data *sdata;
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rcu_read_lock();
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sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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ieee80211_set_default_mgmt_key(sdata, key_idx);
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rcu_read_unlock();
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return 0;
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}
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static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
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{
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struct ieee80211_sub_if_data *sdata = sta->sdata;
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sinfo->filled = STATION_INFO_INACTIVE_TIME |
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STATION_INFO_RX_BYTES |
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STATION_INFO_TX_BYTES |
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STATION_INFO_TX_BITRATE;
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sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
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sinfo->rx_bytes = sta->rx_bytes;
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sinfo->tx_bytes = sta->tx_bytes;
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if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
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sinfo->filled |= STATION_INFO_SIGNAL;
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sinfo->signal = (s8)sta->last_signal;
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}
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sinfo->txrate.flags = 0;
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if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
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sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
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if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
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sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
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if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
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sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
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if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
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struct ieee80211_supported_band *sband;
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sband = sta->local->hw.wiphy->bands[
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sta->local->hw.conf.channel->band];
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sinfo->txrate.legacy =
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sband->bitrates[sta->last_tx_rate.idx].bitrate;
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} else
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sinfo->txrate.mcs = sta->last_tx_rate.idx;
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if (ieee80211_vif_is_mesh(&sdata->vif)) {
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#ifdef CONFIG_MAC80211_MESH
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sinfo->filled |= STATION_INFO_LLID |
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STATION_INFO_PLID |
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STATION_INFO_PLINK_STATE;
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sinfo->llid = le16_to_cpu(sta->llid);
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sinfo->plid = le16_to_cpu(sta->plid);
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sinfo->plink_state = sta->plink_state;
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#endif
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}
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}
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static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
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int idx, u8 *mac, struct station_info *sinfo)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct sta_info *sta;
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int ret = -ENOENT;
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rcu_read_lock();
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sta = sta_info_get_by_idx(local, idx, dev);
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if (sta) {
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ret = 0;
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memcpy(mac, sta->sta.addr, ETH_ALEN);
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sta_set_sinfo(sta, sinfo);
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}
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rcu_read_unlock();
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return ret;
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}
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static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
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u8 *mac, struct station_info *sinfo)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct sta_info *sta;
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int ret = -ENOENT;
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rcu_read_lock();
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/* XXX: verify sta->dev == dev */
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sta = sta_info_get(local, mac);
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if (sta) {
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ret = 0;
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sta_set_sinfo(sta, sinfo);
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}
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rcu_read_unlock();
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return ret;
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}
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/*
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* This handles both adding a beacon and setting new beacon info
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*/
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static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
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struct beacon_parameters *params)
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{
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struct beacon_data *new, *old;
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int new_head_len, new_tail_len;
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int size;
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int err = -EINVAL;
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old = sdata->u.ap.beacon;
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/* head must not be zero-length */
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if (params->head && !params->head_len)
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return -EINVAL;
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/*
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* This is a kludge. beacon interval should really be part
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* of the beacon information.
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*/
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if (params->interval) {
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sdata->local->hw.conf.beacon_int = params->interval;
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err = ieee80211_hw_config(sdata->local,
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IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
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if (err < 0)
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return err;
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/*
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* We updated some parameter so if below bails out
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* it's not an error.
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*/
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err = 0;
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}
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|
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/* Need to have a beacon head if we don't have one yet */
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if (!params->head && !old)
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return err;
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|
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/* sorry, no way to start beaconing without dtim period */
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if (!params->dtim_period && !old)
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return err;
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|
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/* new or old head? */
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if (params->head)
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new_head_len = params->head_len;
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else
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new_head_len = old->head_len;
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/* new or old tail? */
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if (params->tail || !old)
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/* params->tail_len will be zero for !params->tail */
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new_tail_len = params->tail_len;
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else
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new_tail_len = old->tail_len;
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|
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size = sizeof(*new) + new_head_len + new_tail_len;
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new = kzalloc(size, GFP_KERNEL);
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if (!new)
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return -ENOMEM;
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|
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/* start filling the new info now */
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|
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/* new or old dtim period? */
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if (params->dtim_period)
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new->dtim_period = params->dtim_period;
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else
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new->dtim_period = old->dtim_period;
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/*
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* pointers go into the block we allocated,
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* memory is | beacon_data | head | tail |
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*/
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new->head = ((u8 *) new) + sizeof(*new);
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new->tail = new->head + new_head_len;
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new->head_len = new_head_len;
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new->tail_len = new_tail_len;
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/* copy in head */
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if (params->head)
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memcpy(new->head, params->head, new_head_len);
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else
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memcpy(new->head, old->head, new_head_len);
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|
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/* copy in optional tail */
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if (params->tail)
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memcpy(new->tail, params->tail, new_tail_len);
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else
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if (old)
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memcpy(new->tail, old->tail, new_tail_len);
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|
|
rcu_assign_pointer(sdata->u.ap.beacon, new);
|
|
|
|
synchronize_rcu();
|
|
|
|
kfree(old);
|
|
|
|
return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
|
|
}
|
|
|
|
static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
|
|
struct beacon_parameters *params)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct beacon_data *old;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_AP)
|
|
return -EINVAL;
|
|
|
|
old = sdata->u.ap.beacon;
|
|
|
|
if (old)
|
|
return -EALREADY;
|
|
|
|
return ieee80211_config_beacon(sdata, params);
|
|
}
|
|
|
|
static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
|
|
struct beacon_parameters *params)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct beacon_data *old;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_AP)
|
|
return -EINVAL;
|
|
|
|
old = sdata->u.ap.beacon;
|
|
|
|
if (!old)
|
|
return -ENOENT;
|
|
|
|
return ieee80211_config_beacon(sdata, params);
|
|
}
|
|
|
|
static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct beacon_data *old;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_AP)
|
|
return -EINVAL;
|
|
|
|
old = sdata->u.ap.beacon;
|
|
|
|
if (!old)
|
|
return -ENOENT;
|
|
|
|
rcu_assign_pointer(sdata->u.ap.beacon, NULL);
|
|
synchronize_rcu();
|
|
kfree(old);
|
|
|
|
return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
|
|
}
|
|
|
|
/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
|
|
struct iapp_layer2_update {
|
|
u8 da[ETH_ALEN]; /* broadcast */
|
|
u8 sa[ETH_ALEN]; /* STA addr */
|
|
__be16 len; /* 6 */
|
|
u8 dsap; /* 0 */
|
|
u8 ssap; /* 0 */
|
|
u8 control;
|
|
u8 xid_info[3];
|
|
} __attribute__ ((packed));
|
|
|
|
static void ieee80211_send_layer2_update(struct sta_info *sta)
|
|
{
|
|
struct iapp_layer2_update *msg;
|
|
struct sk_buff *skb;
|
|
|
|
/* Send Level 2 Update Frame to update forwarding tables in layer 2
|
|
* bridge devices */
|
|
|
|
skb = dev_alloc_skb(sizeof(*msg));
|
|
if (!skb)
|
|
return;
|
|
msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
|
|
|
|
/* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
|
|
* Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
|
|
|
|
memset(msg->da, 0xff, ETH_ALEN);
|
|
memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
|
|
msg->len = htons(6);
|
|
msg->dsap = 0;
|
|
msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
|
|
msg->control = 0xaf; /* XID response lsb.1111F101.
|
|
* F=0 (no poll command; unsolicited frame) */
|
|
msg->xid_info[0] = 0x81; /* XID format identifier */
|
|
msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
|
|
msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
|
|
|
|
skb->dev = sta->sdata->dev;
|
|
skb->protocol = eth_type_trans(skb, sta->sdata->dev);
|
|
memset(skb->cb, 0, sizeof(skb->cb));
|
|
netif_rx(skb);
|
|
}
|
|
|
|
static void sta_apply_parameters(struct ieee80211_local *local,
|
|
struct sta_info *sta,
|
|
struct station_parameters *params)
|
|
{
|
|
u32 rates;
|
|
int i, j;
|
|
struct ieee80211_supported_band *sband;
|
|
struct ieee80211_sub_if_data *sdata = sta->sdata;
|
|
|
|
sband = local->hw.wiphy->bands[local->oper_channel->band];
|
|
|
|
/*
|
|
* FIXME: updating the flags is racy when this function is
|
|
* called from ieee80211_change_station(), this will
|
|
* be resolved in a future patch.
|
|
*/
|
|
|
|
if (params->station_flags & STATION_FLAG_CHANGED) {
|
|
spin_lock_bh(&sta->lock);
|
|
sta->flags &= ~WLAN_STA_AUTHORIZED;
|
|
if (params->station_flags & STATION_FLAG_AUTHORIZED)
|
|
sta->flags |= WLAN_STA_AUTHORIZED;
|
|
|
|
sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
|
|
if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
|
|
sta->flags |= WLAN_STA_SHORT_PREAMBLE;
|
|
|
|
sta->flags &= ~WLAN_STA_WME;
|
|
if (params->station_flags & STATION_FLAG_WME)
|
|
sta->flags |= WLAN_STA_WME;
|
|
|
|
sta->flags &= ~WLAN_STA_MFP;
|
|
if (params->station_flags & STATION_FLAG_MFP)
|
|
sta->flags |= WLAN_STA_MFP;
|
|
spin_unlock_bh(&sta->lock);
|
|
}
|
|
|
|
/*
|
|
* FIXME: updating the following information is racy when this
|
|
* function is called from ieee80211_change_station().
|
|
* However, all this information should be static so
|
|
* maybe we should just reject attemps to change it.
|
|
*/
|
|
|
|
if (params->aid) {
|
|
sta->sta.aid = params->aid;
|
|
if (sta->sta.aid > IEEE80211_MAX_AID)
|
|
sta->sta.aid = 0; /* XXX: should this be an error? */
|
|
}
|
|
|
|
if (params->listen_interval >= 0)
|
|
sta->listen_interval = params->listen_interval;
|
|
|
|
if (params->supported_rates) {
|
|
rates = 0;
|
|
|
|
for (i = 0; i < params->supported_rates_len; i++) {
|
|
int rate = (params->supported_rates[i] & 0x7f) * 5;
|
|
for (j = 0; j < sband->n_bitrates; j++) {
|
|
if (sband->bitrates[j].bitrate == rate)
|
|
rates |= BIT(j);
|
|
}
|
|
}
|
|
sta->sta.supp_rates[local->oper_channel->band] = rates;
|
|
}
|
|
|
|
if (params->ht_capa)
|
|
ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
|
|
params->ht_capa,
|
|
&sta->sta.ht_cap);
|
|
|
|
if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
|
|
switch (params->plink_action) {
|
|
case PLINK_ACTION_OPEN:
|
|
mesh_plink_open(sta);
|
|
break;
|
|
case PLINK_ACTION_BLOCK:
|
|
mesh_plink_block(sta);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *mac, struct station_parameters *params)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct sta_info *sta;
|
|
struct ieee80211_sub_if_data *sdata;
|
|
int err;
|
|
int layer2_update;
|
|
|
|
/* Prevent a race with changing the rate control algorithm */
|
|
if (!netif_running(dev))
|
|
return -ENETDOWN;
|
|
|
|
if (params->vlan) {
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
|
|
sdata->vif.type != NL80211_IFTYPE_AP)
|
|
return -EINVAL;
|
|
} else
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (compare_ether_addr(mac, dev->dev_addr) == 0)
|
|
return -EINVAL;
|
|
|
|
if (is_multicast_ether_addr(mac))
|
|
return -EINVAL;
|
|
|
|
sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
|
|
if (!sta)
|
|
return -ENOMEM;
|
|
|
|
sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
|
|
|
|
sta_apply_parameters(local, sta, params);
|
|
|
|
rate_control_rate_init(sta);
|
|
|
|
layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
|
|
sdata->vif.type == NL80211_IFTYPE_AP;
|
|
|
|
rcu_read_lock();
|
|
|
|
err = sta_info_insert(sta);
|
|
if (err) {
|
|
/* STA has been freed */
|
|
if (err == -EEXIST && layer2_update) {
|
|
/* Need to update layer 2 devices on reassociation */
|
|
sta = sta_info_get(local, mac);
|
|
if (sta)
|
|
ieee80211_send_layer2_update(sta);
|
|
}
|
|
rcu_read_unlock();
|
|
return err;
|
|
}
|
|
|
|
if (layer2_update)
|
|
ieee80211_send_layer2_update(sta);
|
|
|
|
rcu_read_unlock();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *mac)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct sta_info *sta;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (mac) {
|
|
rcu_read_lock();
|
|
|
|
/* XXX: get sta belonging to dev */
|
|
sta = sta_info_get(local, mac);
|
|
if (!sta) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
|
|
sta_info_unlink(&sta);
|
|
rcu_read_unlock();
|
|
|
|
sta_info_destroy(sta);
|
|
} else
|
|
sta_info_flush(local, sdata);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_change_station(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
u8 *mac,
|
|
struct station_parameters *params)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct sta_info *sta;
|
|
struct ieee80211_sub_if_data *vlansdata;
|
|
|
|
rcu_read_lock();
|
|
|
|
/* XXX: get sta belonging to dev */
|
|
sta = sta_info_get(local, mac);
|
|
if (!sta) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
|
|
if (params->vlan && params->vlan != sta->sdata->dev) {
|
|
vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
|
|
|
|
if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
|
|
vlansdata->vif.type != NL80211_IFTYPE_AP) {
|
|
rcu_read_unlock();
|
|
return -EINVAL;
|
|
}
|
|
|
|
sta->sdata = vlansdata;
|
|
ieee80211_send_layer2_update(sta);
|
|
}
|
|
|
|
sta_apply_parameters(local, sta, params);
|
|
|
|
rcu_read_unlock();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_MAC80211_MESH
|
|
static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *dst, u8 *next_hop)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct mesh_path *mpath;
|
|
struct sta_info *sta;
|
|
int err;
|
|
|
|
if (!netif_running(dev))
|
|
return -ENETDOWN;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
|
|
rcu_read_lock();
|
|
sta = sta_info_get(local, next_hop);
|
|
if (!sta) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
|
|
err = mesh_path_add(dst, sdata);
|
|
if (err) {
|
|
rcu_read_unlock();
|
|
return err;
|
|
}
|
|
|
|
mpath = mesh_path_lookup(dst, sdata);
|
|
if (!mpath) {
|
|
rcu_read_unlock();
|
|
return -ENXIO;
|
|
}
|
|
mesh_path_fix_nexthop(mpath, sta);
|
|
|
|
rcu_read_unlock();
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *dst)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (dst)
|
|
return mesh_path_del(dst, sdata);
|
|
|
|
mesh_path_flush(sdata);
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_change_mpath(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
u8 *dst, u8 *next_hop)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct mesh_path *mpath;
|
|
struct sta_info *sta;
|
|
|
|
if (!netif_running(dev))
|
|
return -ENETDOWN;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
|
|
rcu_read_lock();
|
|
|
|
sta = sta_info_get(local, next_hop);
|
|
if (!sta) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
|
|
mpath = mesh_path_lookup(dst, sdata);
|
|
if (!mpath) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
|
|
mesh_path_fix_nexthop(mpath, sta);
|
|
|
|
rcu_read_unlock();
|
|
return 0;
|
|
}
|
|
|
|
static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
|
|
struct mpath_info *pinfo)
|
|
{
|
|
if (mpath->next_hop)
|
|
memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
|
|
else
|
|
memset(next_hop, 0, ETH_ALEN);
|
|
|
|
pinfo->filled = MPATH_INFO_FRAME_QLEN |
|
|
MPATH_INFO_DSN |
|
|
MPATH_INFO_METRIC |
|
|
MPATH_INFO_EXPTIME |
|
|
MPATH_INFO_DISCOVERY_TIMEOUT |
|
|
MPATH_INFO_DISCOVERY_RETRIES |
|
|
MPATH_INFO_FLAGS;
|
|
|
|
pinfo->frame_qlen = mpath->frame_queue.qlen;
|
|
pinfo->dsn = mpath->dsn;
|
|
pinfo->metric = mpath->metric;
|
|
if (time_before(jiffies, mpath->exp_time))
|
|
pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
|
|
pinfo->discovery_timeout =
|
|
jiffies_to_msecs(mpath->discovery_timeout);
|
|
pinfo->discovery_retries = mpath->discovery_retries;
|
|
pinfo->flags = 0;
|
|
if (mpath->flags & MESH_PATH_ACTIVE)
|
|
pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
|
|
if (mpath->flags & MESH_PATH_RESOLVING)
|
|
pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
|
|
if (mpath->flags & MESH_PATH_DSN_VALID)
|
|
pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
|
|
if (mpath->flags & MESH_PATH_FIXED)
|
|
pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
|
|
if (mpath->flags & MESH_PATH_RESOLVING)
|
|
pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
|
|
|
|
pinfo->flags = mpath->flags;
|
|
}
|
|
|
|
static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
|
|
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct mesh_path *mpath;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
|
|
rcu_read_lock();
|
|
mpath = mesh_path_lookup(dst, sdata);
|
|
if (!mpath) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
memcpy(dst, mpath->dst, ETH_ALEN);
|
|
mpath_set_pinfo(mpath, next_hop, pinfo);
|
|
rcu_read_unlock();
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
|
|
int idx, u8 *dst, u8 *next_hop,
|
|
struct mpath_info *pinfo)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
struct mesh_path *mpath;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
|
|
rcu_read_lock();
|
|
mpath = mesh_path_lookup_by_idx(idx, sdata);
|
|
if (!mpath) {
|
|
rcu_read_unlock();
|
|
return -ENOENT;
|
|
}
|
|
memcpy(dst, mpath->dst, ETH_ALEN);
|
|
mpath_set_pinfo(mpath, next_hop, pinfo);
|
|
rcu_read_unlock();
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_get_mesh_params(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
struct mesh_config *conf)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
|
|
return 0;
|
|
}
|
|
|
|
static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
|
|
{
|
|
return (mask >> (parm-1)) & 0x1;
|
|
}
|
|
|
|
static int ieee80211_set_mesh_params(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
const struct mesh_config *nconf, u32 mask)
|
|
{
|
|
struct mesh_config *conf;
|
|
struct ieee80211_sub_if_data *sdata;
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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|
|
|
if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
|
|
return -ENOTSUPP;
|
|
|
|
/* Set the config options which we are interested in setting */
|
|
conf = &(sdata->u.mesh.mshcfg);
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|
if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
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|
conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
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if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
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|
conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
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if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
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|
conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
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if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
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conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
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if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
|
|
conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
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|
if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
|
|
conf->dot11MeshTTL = nconf->dot11MeshTTL;
|
|
if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
|
|
conf->auto_open_plinks = nconf->auto_open_plinks;
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if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
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|
conf->dot11MeshHWMPmaxPREQretries =
|
|
nconf->dot11MeshHWMPmaxPREQretries;
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if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
|
|
conf->path_refresh_time = nconf->path_refresh_time;
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if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
|
|
conf->min_discovery_timeout = nconf->min_discovery_timeout;
|
|
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
|
|
conf->dot11MeshHWMPactivePathTimeout =
|
|
nconf->dot11MeshHWMPactivePathTimeout;
|
|
if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
|
|
conf->dot11MeshHWMPpreqMinInterval =
|
|
nconf->dot11MeshHWMPpreqMinInterval;
|
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if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
|
|
mask))
|
|
conf->dot11MeshHWMPnetDiameterTraversalTime =
|
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nconf->dot11MeshHWMPnetDiameterTraversalTime;
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
static int ieee80211_change_bss(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
struct bss_parameters *params)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
u32 changed = 0;
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
if (sdata->vif.type != NL80211_IFTYPE_AP)
|
|
return -EINVAL;
|
|
|
|
if (params->use_cts_prot >= 0) {
|
|
sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
|
|
changed |= BSS_CHANGED_ERP_CTS_PROT;
|
|
}
|
|
if (params->use_short_preamble >= 0) {
|
|
sdata->vif.bss_conf.use_short_preamble =
|
|
params->use_short_preamble;
|
|
changed |= BSS_CHANGED_ERP_PREAMBLE;
|
|
}
|
|
if (params->use_short_slot_time >= 0) {
|
|
sdata->vif.bss_conf.use_short_slot =
|
|
params->use_short_slot_time;
|
|
changed |= BSS_CHANGED_ERP_SLOT;
|
|
}
|
|
|
|
if (params->basic_rates) {
|
|
int i, j;
|
|
u32 rates = 0;
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct ieee80211_supported_band *sband =
|
|
wiphy->bands[local->oper_channel->band];
|
|
|
|
for (i = 0; i < params->basic_rates_len; i++) {
|
|
int rate = (params->basic_rates[i] & 0x7f) * 5;
|
|
for (j = 0; j < sband->n_bitrates; j++) {
|
|
if (sband->bitrates[j].bitrate == rate)
|
|
rates |= BIT(j);
|
|
}
|
|
}
|
|
sdata->vif.bss_conf.basic_rates = rates;
|
|
changed |= BSS_CHANGED_BASIC_RATES;
|
|
}
|
|
|
|
ieee80211_bss_info_change_notify(sdata, changed);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_set_txq_params(struct wiphy *wiphy,
|
|
struct ieee80211_txq_params *params)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
struct ieee80211_tx_queue_params p;
|
|
|
|
if (!local->ops->conf_tx)
|
|
return -EOPNOTSUPP;
|
|
|
|
memset(&p, 0, sizeof(p));
|
|
p.aifs = params->aifs;
|
|
p.cw_max = params->cwmax;
|
|
p.cw_min = params->cwmin;
|
|
p.txop = params->txop;
|
|
if (local->ops->conf_tx(local_to_hw(local), params->queue, &p)) {
|
|
printk(KERN_DEBUG "%s: failed to set TX queue "
|
|
"parameters for queue %d\n", local->mdev->name,
|
|
params->queue);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ieee80211_set_channel(struct wiphy *wiphy,
|
|
struct ieee80211_channel *chan,
|
|
enum nl80211_channel_type channel_type)
|
|
{
|
|
struct ieee80211_local *local = wiphy_priv(wiphy);
|
|
|
|
local->oper_channel = chan;
|
|
local->oper_channel_type = channel_type;
|
|
|
|
return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
|
|
}
|
|
|
|
static int set_mgmt_extra_ie_sta(struct ieee80211_if_sta *ifsta, u8 subtype,
|
|
u8 *ies, size_t ies_len)
|
|
{
|
|
switch (subtype) {
|
|
case IEEE80211_STYPE_PROBE_REQ >> 4:
|
|
kfree(ifsta->ie_probereq);
|
|
ifsta->ie_probereq = ies;
|
|
ifsta->ie_probereq_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_PROBE_RESP >> 4:
|
|
kfree(ifsta->ie_proberesp);
|
|
ifsta->ie_proberesp = ies;
|
|
ifsta->ie_proberesp_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_AUTH >> 4:
|
|
kfree(ifsta->ie_auth);
|
|
ifsta->ie_auth = ies;
|
|
ifsta->ie_auth_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_ASSOC_REQ >> 4:
|
|
kfree(ifsta->ie_assocreq);
|
|
ifsta->ie_assocreq = ies;
|
|
ifsta->ie_assocreq_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_REASSOC_REQ >> 4:
|
|
kfree(ifsta->ie_reassocreq);
|
|
ifsta->ie_reassocreq = ies;
|
|
ifsta->ie_reassocreq_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_DEAUTH >> 4:
|
|
kfree(ifsta->ie_deauth);
|
|
ifsta->ie_deauth = ies;
|
|
ifsta->ie_deauth_len = ies_len;
|
|
return 0;
|
|
case IEEE80211_STYPE_DISASSOC >> 4:
|
|
kfree(ifsta->ie_disassoc);
|
|
ifsta->ie_disassoc = ies;
|
|
ifsta->ie_disassoc_len = ies_len;
|
|
return 0;
|
|
}
|
|
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
struct mgmt_extra_ie_params *params)
|
|
{
|
|
struct ieee80211_sub_if_data *sdata;
|
|
u8 *ies;
|
|
size_t ies_len;
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
if (params->ies) {
|
|
ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
|
|
if (ies == NULL)
|
|
return -ENOMEM;
|
|
ies_len = params->ies_len;
|
|
} else {
|
|
ies = NULL;
|
|
ies_len = 0;
|
|
}
|
|
|
|
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
|
|
switch (sdata->vif.type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
case NL80211_IFTYPE_ADHOC:
|
|
ret = set_mgmt_extra_ie_sta(&sdata->u.sta, params->subtype,
|
|
ies, ies_len);
|
|
break;
|
|
default:
|
|
ret = -EOPNOTSUPP;
|
|
break;
|
|
}
|
|
|
|
if (ret)
|
|
kfree(ies);
|
|
return ret;
|
|
}
|
|
|
|
struct cfg80211_ops mac80211_config_ops = {
|
|
.add_virtual_intf = ieee80211_add_iface,
|
|
.del_virtual_intf = ieee80211_del_iface,
|
|
.change_virtual_intf = ieee80211_change_iface,
|
|
.add_key = ieee80211_add_key,
|
|
.del_key = ieee80211_del_key,
|
|
.get_key = ieee80211_get_key,
|
|
.set_default_key = ieee80211_config_default_key,
|
|
.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
|
|
.add_beacon = ieee80211_add_beacon,
|
|
.set_beacon = ieee80211_set_beacon,
|
|
.del_beacon = ieee80211_del_beacon,
|
|
.add_station = ieee80211_add_station,
|
|
.del_station = ieee80211_del_station,
|
|
.change_station = ieee80211_change_station,
|
|
.get_station = ieee80211_get_station,
|
|
.dump_station = ieee80211_dump_station,
|
|
#ifdef CONFIG_MAC80211_MESH
|
|
.add_mpath = ieee80211_add_mpath,
|
|
.del_mpath = ieee80211_del_mpath,
|
|
.change_mpath = ieee80211_change_mpath,
|
|
.get_mpath = ieee80211_get_mpath,
|
|
.dump_mpath = ieee80211_dump_mpath,
|
|
.set_mesh_params = ieee80211_set_mesh_params,
|
|
.get_mesh_params = ieee80211_get_mesh_params,
|
|
#endif
|
|
.change_bss = ieee80211_change_bss,
|
|
.set_txq_params = ieee80211_set_txq_params,
|
|
.set_channel = ieee80211_set_channel,
|
|
.set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
|
|
};
|