#include <net/net_namespace.h>
#include <net/cfg80211.h>
-#include "ieee80211_common.h"
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "wep.h"
#include "wme.h"
#include "aes_ccm.h"
#include "ieee80211_led.h"
-#include "ieee80211_cfg.h"
+#include "cfg.h"
#include "debugfs.h"
#include "debugfs_netdev.h"
/* common interface routines */
-static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
+static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
{
memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
return ETH_ALEN;
}
+/* must be called under mdev tx lock */
+static void ieee80211_configure_filter(struct ieee80211_local *local)
+{
+ unsigned int changed_flags;
+ unsigned int new_flags = 0;
+
+ if (atomic_read(&local->iff_promiscs))
+ new_flags |= FIF_PROMISC_IN_BSS;
+
+ if (atomic_read(&local->iff_allmultis))
+ new_flags |= FIF_ALLMULTI;
+
+ if (local->monitors)
+ new_flags |= FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC;
+
+ changed_flags = local->filter_flags ^ new_flags;
+
+ /* be a bit nasty */
+ new_flags |= (1<<31);
+
+ local->ops->configure_filter(local_to_hw(local),
+ changed_flags, &new_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+
+ WARN_ON(new_flags & (1<<31));
+
+ local->filter_flags = new_flags & ~(1<<31);
+}
+
/* master interface */
static int ieee80211_master_open(struct net_device *dev)
struct ieee80211_sub_if_data *sdata;
int res = -EOPNOTSUPP;
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->dev != dev && netif_running(sdata->dev)) {
res = 0;
break;
}
}
- read_unlock(&local->sub_if_lock);
return res;
}
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata;
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list)
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list)
if (sdata->dev != dev && netif_running(sdata->dev))
dev_close(sdata->dev);
- read_unlock(&local->sub_if_lock);
return 0;
}
-/* management interface */
-
-static void
-ieee80211_fill_frame_info(struct ieee80211_local *local,
- struct ieee80211_frame_info *fi,
- struct ieee80211_rx_status *status)
-{
- if (status) {
- struct timespec ts;
- struct ieee80211_rate *rate;
-
- jiffies_to_timespec(jiffies, &ts);
- fi->hosttime = cpu_to_be64((u64) ts.tv_sec * 1000000 +
- ts.tv_nsec / 1000);
- fi->mactime = cpu_to_be64(status->mactime);
- switch (status->phymode) {
- case MODE_IEEE80211A:
- fi->phytype = htonl(ieee80211_phytype_ofdm_dot11_a);
- break;
- case MODE_IEEE80211B:
- fi->phytype = htonl(ieee80211_phytype_dsss_dot11_b);
- break;
- case MODE_IEEE80211G:
- fi->phytype = htonl(ieee80211_phytype_pbcc_dot11_g);
- break;
- default:
- fi->phytype = htonl(0xAAAAAAAA);
- break;
- }
- fi->channel = htonl(status->channel);
- rate = ieee80211_get_rate(local, status->phymode,
- status->rate);
- if (rate) {
- fi->datarate = htonl(rate->rate);
- if (rate->flags & IEEE80211_RATE_PREAMBLE2) {
- if (status->rate == rate->val)
- fi->preamble = htonl(2); /* long */
- else if (status->rate == rate->val2)
- fi->preamble = htonl(1); /* short */
- } else
- fi->preamble = htonl(0);
- } else {
- fi->datarate = htonl(0);
- fi->preamble = htonl(0);
- }
-
- fi->antenna = htonl(status->antenna);
- fi->priority = htonl(0xffffffff); /* no clue */
- fi->ssi_type = htonl(ieee80211_ssi_raw);
- fi->ssi_signal = htonl(status->ssi);
- fi->ssi_noise = 0x00000000;
- fi->encoding = 0;
- } else {
- /* clear everything because we really don't know.
- * the msg_type field isn't present on monitor frames
- * so we don't know whether it will be present or not,
- * but it's ok to not clear it since it'll be assigned
- * anyway */
- memset(fi, 0, sizeof(*fi) - sizeof(fi->msg_type));
-
- fi->ssi_type = htonl(ieee80211_ssi_none);
- }
- fi->version = htonl(IEEE80211_FI_VERSION);
- fi->length = cpu_to_be32(sizeof(*fi) - sizeof(fi->msg_type));
-}
-
-/* this routine is actually not just for this, but also
- * for pushing fake 'management' frames into userspace.
- * it shall be replaced by a netlink-based system. */
-void
-ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type)
-{
- struct ieee80211_frame_info *fi;
- const size_t hlen = sizeof(struct ieee80211_frame_info);
- struct net_device *dev = local->apdev;
-
- skb->dev = dev;
-
- if (skb_headroom(skb) < hlen) {
- I802_DEBUG_INC(local->rx_expand_skb_head);
- if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return;
- }
- }
-
- fi = (struct ieee80211_frame_info *) skb_push(skb, hlen);
-
- ieee80211_fill_frame_info(local, fi, status);
- fi->msg_type = htonl(msg_type);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
-
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-void ieee80211_key_threshold_notify(struct net_device *dev,
- struct ieee80211_key *key,
- struct sta_info *sta)
+static void ieee80211_master_set_multicast_list(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_msg_key_notification *msg;
-
- /* if no one will get it anyway, don't even allocate it.
- * unlikely because this is only relevant for APs
- * where the device must be open... */
- if (unlikely(!local->apdev))
- return;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_msg_key_notification));
- if (!skb)
- return;
-
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
- msg = (struct ieee80211_msg_key_notification *)
- skb_put(skb, sizeof(struct ieee80211_msg_key_notification));
- msg->tx_rx_count = key->tx_rx_count;
- memcpy(msg->ifname, dev->name, IFNAMSIZ);
- if (sta)
- memcpy(msg->addr, sta->addr, ETH_ALEN);
- else
- memset(msg->addr, 0xff, ETH_ALEN);
-
- key->tx_rx_count = 0;
-
- ieee80211_rx_mgmt(local, skb, NULL,
- ieee80211_msg_key_threshold_notification);
-}
-
-static int ieee80211_mgmt_open(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (!netif_running(local->mdev))
- return -EOPNOTSUPP;
- return 0;
-}
-
-static int ieee80211_mgmt_stop(struct net_device *dev)
-{
- return 0;
-}
-
-static int ieee80211_change_mtu_apdev(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.11 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-void ieee80211_if_mgmt_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_mgmt_start_xmit;
- dev->change_mtu = ieee80211_change_mtu_apdev;
- dev->open = ieee80211_mgmt_open;
- dev->stop = ieee80211_mgmt_stop;
- dev->type = ARPHRD_IEEE80211_PRISM;
- dev->hard_header_parse = header_parse_80211;
- dev->uninit = ieee80211_if_reinit;
- dev->destructor = ieee80211_if_free;
+ ieee80211_configure_filter(local);
}
/* regular interfaces */
type2 == IEEE80211_IF_TYPE_VLAN)));
}
-/* Check if running monitor interfaces should go to a "soft monitor" mode
- * and switch them if necessary. */
-static inline void ieee80211_start_soft_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) &&
- local->ops->remove_interface) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-}
-
-/* Check if running monitor interfaces should go to a "hard monitor" mode
- * and switch them if necessary. */
-static void ieee80211_start_hard_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->add_interface(local_to_hw(local), &conf);
- }
-}
-
-static void ieee80211_if_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- break;
- }
-}
-
static int ieee80211_open(struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata, *nsdata;
int res;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- read_lock(&local->sub_if_lock);
- list_for_each_entry(nsdata, &local->sub_if_list, list) {
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
struct net_device *ndev = nsdata->dev;
if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
- compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0 &&
- !identical_mac_addr_allowed(sdata->type, nsdata->type)) {
- read_unlock(&local->sub_if_lock);
- return -ENOTUNIQ;
+ compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
+ /*
+ * check whether it may have the same address
+ */
+ if (!identical_mac_addr_allowed(sdata->type,
+ nsdata->type))
+ return -ENOTUNIQ;
+
+ /*
+ * can only add VLANs to enabled APs
+ */
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN &&
+ nsdata->type == IEEE80211_IF_TYPE_AP &&
+ netif_running(nsdata->dev))
+ sdata->u.vlan.ap = nsdata;
}
}
- read_unlock(&local->sub_if_lock);
-
- if (sdata->type == IEEE80211_IF_TYPE_WDS &&
- is_zero_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR && local->open_count &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* run the interface in a "soft monitor" mode */
- local->monitors++;
- local->open_count++;
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- return 0;
- }
- ieee80211_if_open(dev);
- ieee80211_start_soft_monitor(local);
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- conf.mac_addr = NULL;
- else
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res) {
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- ieee80211_start_hard_monitor(local);
- return res;
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_WDS:
+ if (is_zero_ether_addr(sdata->u.wds.remote_addr))
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ if (!sdata->u.vlan.ap)
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_IBSS:
+ /* no special treatment */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
}
if (local->open_count == 0) {
res = 0;
- tasklet_enable(&local->tx_pending_tasklet);
- tasklet_enable(&local->tasklet);
- if (local->ops->open)
- res = local->ops->open(local_to_hw(local));
- if (res == 0) {
- res = dev_open(local->mdev);
- if (res) {
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
- } else {
- res = ieee80211_hw_config(local);
- if (res && local->ops->stop)
- local->ops->stop(local_to_hw(local));
- else if (!res && local->apdev)
- dev_open(local->apdev);
- }
- }
- if (res) {
- if (local->ops->remove_interface)
- local->ops->remove_interface(local_to_hw(local),
- &conf);
+ if (local->ops->start)
+ res = local->ops->start(local_to_hw(local));
+ if (res)
return res;
- }
+ ieee80211_hw_config(local);
}
- local->open_count++;
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ /* must be before the call to ieee80211_configure_filter */
local->monitors++;
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- } else {
+ if (local->monitors == 1) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
+
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
+ res = local->ops->add_interface(local_to_hw(local), &conf);
+ if (res && !local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ if (res)
+ return res;
+
ieee80211_if_config(dev);
ieee80211_reset_erp_info(dev);
ieee80211_enable_keys(sdata);
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
}
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
- !local->user_space_mlme)
- netif_carrier_off(dev);
- else
- netif_carrier_on(dev);
+ if (local->open_count == 0) {
+ res = dev_open(local->mdev);
+ WARN_ON(res);
+ tasklet_enable(&local->tx_pending_tasklet);
+ tasklet_enable(&local->tasklet);
+ }
+
+ /*
+ * set_multicast_list will be invoked by the networking core
+ * which will check whether any increments here were done in
+ * error and sync them down to the hardware as filter flags.
+ */
+ if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+
+ if (sdata->flags & IEEE80211_SDATA_PROMISC)
+ atomic_inc(&local->iff_promiscs);
+
+ local->open_count++;
netif_start_queue(dev);
+
return 0;
}
-static void ieee80211_if_shutdown(struct net_device *dev)
+static int ieee80211_stop(struct net_device *dev)
{
+ struct ieee80211_sub_if_data *sdata;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_init_conf conf;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ netif_stop_queue(dev);
+
+ /*
+ * Don't count this interface for promisc/allmulti while it
+ * is down. dev_mc_unsync() will invoke set_multicast_list
+ * on the master interface which will sync these down to the
+ * hardware as filter flags.
+ */
+ if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
+ atomic_dec(&local->iff_allmultis);
+
+ if (sdata->flags & IEEE80211_SDATA_PROMISC)
+ atomic_dec(&local->iff_promiscs);
+
+ dev_mc_unsync(local->mdev, dev);
+
+ /* down all dependent devices, that is VLANs */
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ struct ieee80211_sub_if_data *vlan, *tmp;
+
+ list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
+ u.vlan.list)
+ dev_close(vlan->dev);
+ WARN_ON(!list_empty(&sdata->u.ap.vlans));
+ }
+
+ local->open_count--;
- ASSERT_RTNL();
switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_del(&sdata->u.vlan.list);
+ sdata->u.vlan.ap = NULL;
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ local->monitors--;
+ if (local->monitors == 0) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
+
+ local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
+ }
+ break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
sdata->u.sta.state = IEEE80211_DISABLED;
del_timer_sync(&sdata->u.sta.timer);
/*
- * Holding the sub_if_lock for writing here blocks
- * out the receive path and makes sure it's not
- * currently processing a packet that may get
- * added to the queue.
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
*/
- write_lock_bh(&local->sub_if_lock);
+ synchronize_rcu();
skb_queue_purge(&sdata->u.sta.skb_queue);
- write_unlock_bh(&local->sub_if_lock);
if (!local->ops->hw_scan &&
local->scan_dev == sdata->dev) {
cancel_delayed_work(&local->scan_work);
}
flush_workqueue(local->hw.workqueue);
- break;
- }
-}
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR &&
- local->open_count > 1 &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* remove "soft monitor" interface */
- local->open_count--;
- local->monitors--;
- if (!local->monitors)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
- return 0;
- }
-
- netif_stop_queue(dev);
- ieee80211_if_shutdown(dev);
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
- local->monitors--;
- if (!local->monitors)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
- } else {
+ sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+ kfree(sdata->u.sta.extra_ie);
+ sdata->u.sta.extra_ie = NULL;
+ sdata->u.sta.extra_ie_len = 0;
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
/* disable all keys for as long as this netdev is down */
ieee80211_disable_keys(sdata);
+ local->ops->remove_interface(local_to_hw(local), &conf);
}
- local->open_count--;
if (local->open_count == 0) {
if (netif_running(local->mdev))
dev_close(local->mdev);
- if (local->apdev)
- dev_close(local->apdev);
+
if (local->ops->stop)
local->ops->stop(local_to_hw(local));
+
tasklet_disable(&local->tx_pending_tasklet);
tasklet_disable(&local->tasklet);
}
- if (local->ops->remove_interface) {
- struct ieee80211_if_init_conf conf;
-
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-
- ieee80211_start_hard_monitor(local);
return 0;
}
-enum netif_tx_lock_class {
- TX_LOCK_NORMAL,
- TX_LOCK_MASTER,
-};
-
-static inline void netif_tx_lock_nested(struct net_device *dev, int subclass)
-{
- spin_lock_nested(&dev->_xmit_lock, subclass);
- dev->xmit_lock_owner = smp_processor_id();
-}
-
static void ieee80211_set_multicast_list(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- unsigned short flags;
+ int allmulti, promisc, sdata_allmulti, sdata_promisc;
+
+ allmulti = !!(dev->flags & IFF_ALLMULTI);
+ promisc = !!(dev->flags & IFF_PROMISC);
+ sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
+ sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
- netif_tx_lock_nested(local->mdev, TX_LOCK_MASTER);
- if (((dev->flags & IFF_ALLMULTI) != 0) ^
- ((sdata->flags & IEEE80211_SDATA_ALLMULTI) != 0)) {
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- local->iff_allmultis--;
+ if (allmulti != sdata_allmulti) {
+ if (dev->flags & IFF_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
else
- local->iff_allmultis++;
+ atomic_dec(&local->iff_allmultis);
sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
}
- if (((dev->flags & IFF_PROMISC) != 0) ^
- ((sdata->flags & IEEE80211_SDATA_PROMISC) != 0)) {
- if (sdata->flags & IEEE80211_SDATA_PROMISC)
- local->iff_promiscs--;
+
+ if (promisc != sdata_promisc) {
+ if (dev->flags & IFF_PROMISC)
+ atomic_inc(&local->iff_promiscs);
else
- local->iff_promiscs++;
+ atomic_dec(&local->iff_promiscs);
sdata->flags ^= IEEE80211_SDATA_PROMISC;
}
- if (dev->mc_count != sdata->mc_count) {
- local->mc_count = local->mc_count - sdata->mc_count +
- dev->mc_count;
- sdata->mc_count = dev->mc_count;
- }
- if (local->ops->set_multicast_list) {
- flags = local->mdev->flags;
- if (local->iff_allmultis)
- flags |= IFF_ALLMULTI;
- if (local->iff_promiscs)
- flags |= IFF_PROMISC;
- read_lock(&local->sub_if_lock);
- local->ops->set_multicast_list(local_to_hw(local), flags,
- local->mc_count);
- read_unlock(&local->sub_if_lock);
- }
- netif_tx_unlock(local->mdev);
+
+ dev_mc_sync(local->mdev, dev);
}
-/* Must not be called for mdev and apdev */
+static const struct header_ops ieee80211_header_ops = {
+ .create = eth_header,
+ .parse = header_parse_80211,
+ .rebuild = eth_rebuild_header,
+ .cache = eth_header_cache,
+ .cache_update = eth_header_cache_update,
+};
+
+/* Must not be called for mdev */
void ieee80211_if_setup(struct net_device *dev)
{
ether_setup(dev);
+ dev->header_ops = &ieee80211_header_ops;
dev->hard_start_xmit = ieee80211_subif_start_xmit;
dev->wireless_handlers = &ieee80211_iw_handler_def;
dev->set_multicast_list = ieee80211_set_multicast_list;
dev->change_mtu = ieee80211_change_mtu;
dev->open = ieee80211_open;
dev->stop = ieee80211_stop;
- dev->uninit = ieee80211_if_reinit;
dev->destructor = ieee80211_if_free;
}
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta;
+ DECLARE_MAC_BUF(mac);
if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
return 0;
sta_info_put(sta);
} else {
printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
- "peer " MAC_FMT "\n",
- dev->name, MAC_ARG(sdata->u.wds.remote_addr));
+ "peer %s\n",
+ dev->name, print_mac(mac, sdata->u.wds.remote_addr));
}
/* Update WDS link data */
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_if_conf conf;
- static u8 scan_bssid[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
if (!local->ops->config_interface || !netif_running(dev))
return 0;
conf.type = sdata->type;
if (sdata->type == IEEE80211_IF_TYPE_STA ||
sdata->type == IEEE80211_IF_TYPE_IBSS) {
- if (local->sta_scanning &&
- local->scan_dev == dev)
- conf.bssid = scan_bssid;
- else
- conf.bssid = sdata->u.sta.bssid;
+ conf.bssid = sdata->u.sta.bssid;
conf.ssid = sdata->u.sta.ssid;
conf.ssid_len = sdata->u.sta.ssid_len;
- conf.generic_elem = sdata->u.sta.extra_ie;
- conf.generic_elem_len = sdata->u.sta.extra_ie_len;
} else if (sdata->type == IEEE80211_IF_TYPE_AP) {
conf.ssid = sdata->u.ap.ssid;
conf.ssid_len = sdata->u.ap.ssid_len;
- conf.generic_elem = sdata->u.ap.generic_elem;
- conf.generic_elem_len = sdata->u.ap.generic_elem_len;
conf.beacon = beacon;
conf.beacon_control = control;
}
local->hw.conf.channel = chan->chan;
local->hw.conf.channel_val = chan->val;
- local->hw.conf.power_level = chan->power_level;
+ if (!local->hw.conf.power_level) {
+ local->hw.conf.power_level = chan->power_level;
+ } else {
+ local->hw.conf.power_level = min(chan->power_level,
+ local->hw.conf.power_level);
+ }
local->hw.conf.freq = chan->freq;
local->hw.conf.phymode = mode->mode;
local->hw.conf.antenna_max = chan->antenna_max;
local->hw.conf.phymode);
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- if (local->ops->config)
+ if (local->open_count)
ret = local->ops->config(local_to_hw(local), &local->hw.conf);
return ret;
IEEE80211_ERP_CHANGE_PREAMBLE);
}
-struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
- struct dev_mc_list *prev,
- void **ptr)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata = *ptr;
- struct dev_mc_list *mc;
-
- if (!prev) {
- WARN_ON(sdata);
- sdata = NULL;
- }
- if (!prev || !prev->next) {
- if (sdata)
- sdata = list_entry(sdata->list.next,
- struct ieee80211_sub_if_data, list);
- else
- sdata = list_entry(local->sub_if_list.next,
- struct ieee80211_sub_if_data, list);
- if (&sdata->list != &local->sub_if_list)
- mc = sdata->dev->mc_list;
- else
- mc = NULL;
- } else
- mc = prev->next;
-
- *ptr = sdata;
- return mc;
-}
-EXPORT_SYMBOL(ieee80211_get_mc_list_item);
-
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
break;
default: /* should never get here! */
printk(KERN_ERR "%s: Unknown message type (%d)\n",
- local->mdev->name, skb->pkt_type);
+ wiphy_name(local->hw.wiphy), skb->pkt_type);
dev_kfree_skb(skb);
break;
}
pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
if (control->flags & IEEE80211_TXCTL_REQUEUE)
pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- if (control->type == IEEE80211_IF_TYPE_MGMT)
- pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
pkt_data->queue = control->queue;
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_local *local = hw_to_local(hw);
u16 frag, type;
- u32 msg_type;
struct ieee80211_tx_status_rtap_hdr *rthdr;
struct ieee80211_sub_if_data *sdata;
int monitors;
if (!status) {
printk(KERN_ERR
"%s: ieee80211_tx_status called with NULL status\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
dev_kfree_skb(skb);
return;
}
printk(KERN_DEBUG "%s: dropped TX "
"filtered frame queue_len=%d "
"PS=%d @%lu\n",
- local->mdev->name,
+ wiphy_name(local->hw.wiphy),
skb_queue_len(
&sta->tx_filtered),
!!(sta->flags & WLAN_STA_PS),
local->dot11FailedCount++;
}
- msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ?
- ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail;
-
/* this was a transmitted frame, but now we want to reuse it */
skb_orphan(skb);
- if ((status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS) &&
- local->apdev) {
- if (local->monitors) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- } else {
- skb2 = skb;
- skb = NULL;
- }
-
- if (skb2)
- /* Send frame to hostapd */
- ieee80211_rx_mgmt(local, skb2, NULL, msg_type);
-
- if (!skb)
- return;
- }
-
if (!local->monitors) {
dev_kfree_skb(skb);
return;
rthdr->data_retries = status->retry_count;
- read_lock(&local->sub_if_lock);
+ rcu_read_lock();
monitors = local->monitors;
- list_for_each_entry(sdata, &local->sub_if_list, list) {
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
/*
* Using the monitors counter is possibly racy, but
* if the value is wrong we simply either clone the skb
continue;
monitors--;
if (monitors)
- skb2 = skb_clone(skb, GFP_KERNEL);
+ skb2 = skb_clone(skb, GFP_ATOMIC);
else
skb2 = NULL;
skb->dev = sdata->dev;
}
}
out:
- read_unlock(&local->sub_if_lock);
+ rcu_read_unlock();
if (skb)
dev_kfree_skb(skb);
}
NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
BUG_ON(!ops->tx);
+ BUG_ON(!ops->start);
+ BUG_ON(!ops->stop);
BUG_ON(!ops->config);
BUG_ON(!ops->add_interface);
+ BUG_ON(!ops->remove_interface);
+ BUG_ON(!ops->configure_filter);
local->ops = ops;
/* for now, mdev needs sub_if_data :/ */
INIT_LIST_HEAD(&local->modes_list);
- rwlock_init(&local->sub_if_lock);
- INIT_LIST_HEAD(&local->sub_if_list);
+ INIT_LIST_HEAD(&local->interfaces);
INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
ieee80211_rx_bss_list_init(mdev);
mdev->open = ieee80211_master_open;
mdev->stop = ieee80211_master_stop;
mdev->type = ARPHRD_IEEE80211;
- mdev->hard_header_parse = header_parse_80211;
+ mdev->header_ops = &ieee80211_header_ops;
+ mdev->set_multicast_list = ieee80211_master_set_multicast_list;
sdata->type = IEEE80211_IF_TYPE_AP;
sdata->dev = mdev;
sdata->u.ap.force_unicast_rateidx = -1;
sdata->u.ap.max_ratectrl_rateidx = -1;
ieee80211_if_sdata_init(sdata);
- list_add_tail(&sdata->list, &local->sub_if_list);
+ /* no RCU needed since we're still during init phase */
+ list_add_tail(&sdata->list, &local->interfaces);
tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
(unsigned long)local);
goto fail_dev;
ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
- result = ieee80211_init_rate_ctrl_alg(local, NULL);
+ result = ieee80211_init_rate_ctrl_alg(local,
+ hw->rate_control_algorithm);
if (result < 0) {
printk(KERN_DEBUG "%s: Failed to initialize rate control "
- "algorithm\n", local->mdev->name);
+ "algorithm\n", wiphy_name(local->hw.wiphy));
goto fail_rate;
}
if (result < 0) {
printk(KERN_DEBUG "%s: Failed to initialize wep\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
goto fail_wep;
}
IEEE80211_IF_TYPE_STA);
if (result)
printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
local->reg_state = IEEE80211_DEV_REGISTERED;
rtnl_unlock();
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata, *tmp;
- struct list_head tmp_list;
int i;
tasklet_kill(&local->tx_pending_tasklet);
BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
local->reg_state = IEEE80211_DEV_UNREGISTERED;
- if (local->apdev)
- ieee80211_if_del_mgmt(local);
- write_lock_bh(&local->sub_if_lock);
- list_replace_init(&local->sub_if_list, &tmp_list);
- write_unlock_bh(&local->sub_if_lock);
+ /*
+ * At this point, interface list manipulations are fine
+ * because the driver cannot be handing us frames any
+ * more and the tasklet is killed.
+ */
- list_for_each_entry_safe(sdata, tmp, &tmp_list, list)
+ /*
+ * First, we remove all non-master interfaces. Do this because they
+ * may have bss pointer dependency on the master, and when we free
+ * the master these would be freed as well, breaking our list
+ * iteration completely.
+ */
+ list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+ if (sdata->dev == local->mdev)
+ continue;
+ list_del(&sdata->list);
__ieee80211_if_del(local, sdata);
+ }
+
+ /* then, finally, remove the master interface */
+ __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
rtnl_unlock();
if (skb_queue_len(&local->skb_queue)
|| skb_queue_len(&local->skb_queue_unreliable))
printk(KERN_WARNING "%s: skb_queue not empty\n",
- local->mdev->name);
+ wiphy_name(local->hw.wiphy));
skb_queue_purge(&local->skb_queue);
skb_queue_purge(&local->skb_queue_unreliable);
BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ret = ieee80211_rate_control_register(&mac80211_rcsimple);
+ if (ret)
+ return ret;
+#endif
+
ret = ieee80211_wme_register();
if (ret) {
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
printk(KERN_DEBUG "ieee80211_init: failed to "
"initialize WME (err=%d)\n", ret);
return ret;
static void __exit ieee80211_exit(void)
{
+#ifdef CONFIG_MAC80211_RCSIMPLE
+ ieee80211_rate_control_unregister(&mac80211_rcsimple);
+#endif
+
ieee80211_wme_unregister();
ieee80211_debugfs_netdev_exit();
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff