diff options
author | David S. Miller <davem@davemloft.net> | 2008-07-14 20:40:34 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-07-14 20:40:34 -0700 |
commit | fc943b12e48f9341bce48c2fadf094cc721aab93 (patch) | |
tree | 8c3244d7f5fae4edbfe0a5103789b0bc5c64f478 /net/mac80211 | |
parent | 72d9794f444734af56ef12833b496326643e2964 (diff) | |
parent | 4c9adafff7d910f142fe44fae37ed12c6b99f20f (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'net/mac80211')
-rw-r--r-- | net/mac80211/cfg.c | 36 | ||||
-rw-r--r-- | net/mac80211/debugfs.c | 15 | ||||
-rw-r--r-- | net/mac80211/debugfs_netdev.c | 48 | ||||
-rw-r--r-- | net/mac80211/debugfs_netdev.h | 5 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 67 | ||||
-rw-r--r-- | net/mac80211/iface.c | 392 | ||||
-rw-r--r-- | net/mac80211/main.c | 171 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 172 | ||||
-rw-r--r-- | net/mac80211/rc80211_pid_algo.c | 8 | ||||
-rw-r--r-- | net/mac80211/rx.c | 38 | ||||
-rw-r--r-- | net/mac80211/sta_info.c | 29 | ||||
-rw-r--r-- | net/mac80211/sta_info.h | 1 | ||||
-rw-r--r-- | net/mac80211/tx.c | 126 | ||||
-rw-r--r-- | net/mac80211/util.c | 4 | ||||
-rw-r--r-- | net/mac80211/wext.c | 65 |
15 files changed, 534 insertions, 643 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 81087281b031..8e7ba0e62cf5 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -50,14 +50,11 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name, struct ieee80211_sub_if_data *sdata; int err; - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; - itype = nl80211_type_to_mac80211_type(type); if (itype == IEEE80211_IF_TYPE_INVALID) return -EINVAL; - err = ieee80211_if_add(local->mdev, name, &dev, itype, params); + err = ieee80211_if_add(local, name, &dev, itype, params); if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags) return err; @@ -68,54 +65,41 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name, static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) { - struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; - char *name; - - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; /* we're under RTNL */ dev = __dev_get_by_index(&init_net, ifindex); if (!dev) - return 0; + return -ENODEV; - name = dev->name; + ieee80211_if_remove(dev); - return ieee80211_if_remove(local->mdev, name, -1); + return 0; } static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { - struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; enum ieee80211_if_types itype; struct ieee80211_sub_if_data *sdata; - - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; + int ret; /* we're under RTNL */ dev = __dev_get_by_index(&init_net, ifindex); if (!dev) return -ENODEV; - if (netif_running(dev)) - return -EBUSY; - itype = nl80211_type_to_mac80211_type(type); if (itype == IEEE80211_IF_TYPE_INVALID) return -EINVAL; sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - return -EOPNOTSUPP; - - ieee80211_if_reinit(dev); - ieee80211_if_set_type(dev, itype); + ret = ieee80211_if_change_type(sdata, itype); + if (ret) + return ret; if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) ieee80211_if_sta_set_mesh_id(&sdata->u.sta, @@ -485,7 +469,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, kfree(old); - return ieee80211_if_config_beacon(sdata->dev); + return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); } static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, @@ -539,7 +523,7 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) synchronize_rcu(); kfree(old); - return ieee80211_if_config_beacon(dev); + return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); } /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index d20d90eead1f..ee509f1109e2 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -70,16 +70,6 @@ DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", /* statistics stuff */ -static inline int rtnl_lock_local(struct ieee80211_local *local) -{ - rtnl_lock(); - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) { - rtnl_unlock(); - return -ENODEV; - } - return 0; -} - #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) @@ -96,10 +86,7 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local, if (!local->ops->get_stats) return -EOPNOTSUPP; - res = rtnl_lock_local(local); - if (res) - return res; - + rtnl_lock(); res = local->ops->get_stats(local_to_hw(local), &stats); rtnl_unlock(); if (!res) diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index b2089b2da48a..475f89a8aee1 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -156,6 +156,8 @@ static const struct file_operations name##_ops = { \ /* common attributes */ IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC); +IEEE80211_IF_FILE(force_unicast_rateidx, force_unicast_rateidx, DEC); +IEEE80211_IF_FILE(max_ratectrl_rateidx, max_ratectrl_rateidx, DEC); /* STA/IBSS attributes */ IEEE80211_IF_FILE(state, u.sta.state, DEC); @@ -191,8 +193,6 @@ __IEEE80211_IF_FILE(flags); IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC); IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC); IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC); -IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC); -IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC); static ssize_t ieee80211_if_fmt_num_buffered_multicast( const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) @@ -248,6 +248,9 @@ IEEE80211_IF_WFILE(min_discovery_timeout, static void add_sta_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_ADD(drop_unencrypted, sta); + DEBUGFS_ADD(force_unicast_rateidx, ap); + DEBUGFS_ADD(max_ratectrl_rateidx, ap); + DEBUGFS_ADD(state, sta); DEBUGFS_ADD(bssid, sta); DEBUGFS_ADD(prev_bssid, sta); @@ -268,23 +271,29 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata) static void add_ap_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_ADD(drop_unencrypted, ap); + DEBUGFS_ADD(force_unicast_rateidx, ap); + DEBUGFS_ADD(max_ratectrl_rateidx, ap); + DEBUGFS_ADD(num_sta_ps, ap); DEBUGFS_ADD(dtim_count, ap); DEBUGFS_ADD(num_beacons, ap); - DEBUGFS_ADD(force_unicast_rateidx, ap); - DEBUGFS_ADD(max_ratectrl_rateidx, ap); DEBUGFS_ADD(num_buffered_multicast, ap); } static void add_wds_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_ADD(drop_unencrypted, wds); + DEBUGFS_ADD(force_unicast_rateidx, ap); + DEBUGFS_ADD(max_ratectrl_rateidx, ap); + DEBUGFS_ADD(peer, wds); } static void add_vlan_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_ADD(drop_unencrypted, vlan); + DEBUGFS_ADD(force_unicast_rateidx, ap); + DEBUGFS_ADD(max_ratectrl_rateidx, ap); } static void add_monitor_files(struct ieee80211_sub_if_data *sdata) @@ -372,6 +381,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata) static void del_sta_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_DEL(drop_unencrypted, sta); + DEBUGFS_DEL(force_unicast_rateidx, ap); + DEBUGFS_DEL(max_ratectrl_rateidx, ap); + DEBUGFS_DEL(state, sta); DEBUGFS_DEL(bssid, sta); DEBUGFS_DEL(prev_bssid, sta); @@ -392,23 +404,29 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata) static void del_ap_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_DEL(drop_unencrypted, ap); + DEBUGFS_DEL(force_unicast_rateidx, ap); + DEBUGFS_DEL(max_ratectrl_rateidx, ap); + DEBUGFS_DEL(num_sta_ps, ap); DEBUGFS_DEL(dtim_count, ap); DEBUGFS_DEL(num_beacons, ap); - DEBUGFS_DEL(force_unicast_rateidx, ap); - DEBUGFS_DEL(max_ratectrl_rateidx, ap); DEBUGFS_DEL(num_buffered_multicast, ap); } static void del_wds_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_DEL(drop_unencrypted, wds); + DEBUGFS_DEL(force_unicast_rateidx, ap); + DEBUGFS_DEL(max_ratectrl_rateidx, ap); + DEBUGFS_DEL(peer, wds); } static void del_vlan_files(struct ieee80211_sub_if_data *sdata) { DEBUGFS_DEL(drop_unencrypted, vlan); + DEBUGFS_DEL(force_unicast_rateidx, ap); + DEBUGFS_DEL(max_ratectrl_rateidx, ap); } static void del_monitor_files(struct ieee80211_sub_if_data *sdata) @@ -458,12 +476,12 @@ static void del_mesh_config(struct ieee80211_sub_if_data *sdata) } #endif -static void del_files(struct ieee80211_sub_if_data *sdata, int type) +static void del_files(struct ieee80211_sub_if_data *sdata) { if (!sdata->debugfsdir) return; - switch (type) { + switch (sdata->vif.type) { case IEEE80211_IF_TYPE_MESH_POINT: #ifdef CONFIG_MAC80211_MESH del_mesh_stats(sdata); @@ -503,29 +521,23 @@ void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata) sprintf(buf, "netdev:%s", sdata->dev->name); sdata->debugfsdir = debugfs_create_dir(buf, sdata->local->hw.wiphy->debugfsdir); + add_files(sdata); } void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata) { - del_files(sdata, sdata->vif.type); + del_files(sdata); debugfs_remove(sdata->debugfsdir); sdata->debugfsdir = NULL; } -void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata, - int oldtype) -{ - del_files(sdata, oldtype); - add_files(sdata); -} - static int netdev_notify(struct notifier_block *nb, unsigned long state, void *ndev) { struct net_device *dev = ndev; struct dentry *dir; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata; char buf[10+IFNAMSIZ]; if (state != NETDEV_CHANGENAME) @@ -537,6 +549,8 @@ static int netdev_notify(struct notifier_block *nb, if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid) return 0; + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + sprintf(buf, "netdev:%s", dev->name); dir = sdata->debugfsdir; if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) diff --git a/net/mac80211/debugfs_netdev.h b/net/mac80211/debugfs_netdev.h index a690071fde8a..7af731f0b731 100644 --- a/net/mac80211/debugfs_netdev.h +++ b/net/mac80211/debugfs_netdev.h @@ -6,8 +6,6 @@ #ifdef CONFIG_MAC80211_DEBUGFS void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata); void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata); -void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata, - int oldtype); void ieee80211_debugfs_netdev_init(void); void ieee80211_debugfs_netdev_exit(void); #else @@ -17,9 +15,6 @@ static inline void ieee80211_debugfs_add_netdev( static inline void ieee80211_debugfs_remove_netdev( struct ieee80211_sub_if_data *sdata) {} -static inline void ieee80211_debugfs_change_if_type( - struct ieee80211_sub_if_data *sdata, int oldtype) -{} static inline void ieee80211_debugfs_netdev_init(void) {} diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 02a8753a4eca..cbea0154ee3a 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -237,8 +237,6 @@ struct ieee80211_if_ap { struct sk_buff_head ps_bc_buf; atomic_t num_sta_ps; /* number of stations in PS mode */ int dtim_count; - int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ - int max_ratectrl_rateidx; /* max TX rateidx for rate control */ int num_beacons; /* number of TXed beacon frames for this BSS */ }; @@ -248,7 +246,6 @@ struct ieee80211_if_wds { }; struct ieee80211_if_vlan { - struct ieee80211_sub_if_data *ap; struct list_head list; }; @@ -422,8 +419,6 @@ struct ieee80211_sub_if_data { */ u64 basic_rates; - u16 sequence; - /* Fragment table for host-based reassembly */ struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; unsigned int fragment_next; @@ -432,16 +427,18 @@ struct ieee80211_sub_if_data { struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; struct ieee80211_key *default_key; + /* BSS configuration for this interface. */ + struct ieee80211_bss_conf bss_conf; + /* - * BSS configuration for this interface. - * - * FIXME: I feel bad putting this here when we already have a - * bss pointer, but the bss pointer is just wrong when - * you have multiple virtual STA mode interfaces... - * This needs to be fixed. + * AP this belongs to: self in AP mode and + * corresponding AP in VLAN mode, NULL for + * all others (might be needed later in IBSS) */ - struct ieee80211_bss_conf bss_conf; - struct ieee80211_if_ap *bss; /* BSS that this device belongs to */ + struct ieee80211_if_ap *bss; + + int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ + int max_ratectrl_rateidx; /* max TX rateidx for rate control */ union { struct ieee80211_if_ap ap; @@ -533,8 +530,6 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) return container_of(p, struct ieee80211_sub_if_data, vif); } -#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) - enum { IEEE80211_RX_MSG = 1, IEEE80211_TX_STATUS_MSG = 2, @@ -561,12 +556,6 @@ struct ieee80211_local { bool tim_in_locked_section; /* see ieee80211_beacon_get() */ int tx_headroom; /* required headroom for hardware/radiotap */ - enum { - IEEE80211_DEV_UNINITIALIZED = 0, - IEEE80211_DEV_REGISTERED, - IEEE80211_DEV_UNREGISTERED, - } reg_state; - /* Tasklet and skb queue to process calls from IRQ mode. All frames * added to skb_queue will be processed, but frames in * skb_queue_unreliable may be dropped if the total length of these @@ -760,6 +749,16 @@ static inline int ieee80211_is_multiqueue(struct ieee80211_local *local) #endif } +static inline struct ieee80211_sub_if_data * +IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + + BUG_ON(!local || local->mdev == dev); + + return netdev_priv(dev); +} + /* this struct represents 802.11n's RA/TID combination */ struct ieee80211_ra_tid { u8 ra[ETH_ALEN]; @@ -853,10 +852,8 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) /* ieee80211.c */ int ieee80211_hw_config(struct ieee80211_local *local); -int ieee80211_if_config(struct net_device *dev); -int ieee80211_if_config_beacon(struct net_device *dev); +int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); -void ieee80211_if_setup(struct net_device *dev); u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, struct ieee80211_ht_info *req_ht_cap, struct ieee80211_ht_bss_info *req_bss_cap); @@ -883,8 +880,8 @@ int ieee80211_sta_scan_results(struct net_device *dev, ieee80211_rx_result ieee80211_sta_rx_scan( struct net_device *dev, struct sk_buff *skb, struct ieee80211_rx_status *rx_status); -void ieee80211_rx_bss_list_init(struct net_device *dev); -void ieee80211_rx_bss_list_deinit(struct net_device *dev); +void ieee80211_rx_bss_list_init(struct ieee80211_local *local); +void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local); int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev, struct sk_buff *skb, u8 *bssid, @@ -925,17 +922,15 @@ static inline void ieee80211_start_mesh(struct net_device *dev) {} #endif -/* ieee80211_iface.c */ -int ieee80211_if_add(struct net_device *dev, const char *name, - struct net_device **new_dev, int type, +/* interface handling */ +void ieee80211_if_setup(struct net_device *dev); +int ieee80211_if_add(struct ieee80211_local *local, const char *name, + struct net_device **new_dev, enum ieee80211_if_types type, struct vif_params *params); -void ieee80211_if_set_type(struct net_device *dev, int type); -void ieee80211_if_reinit(struct net_device *dev); -void __ieee80211_if_del(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata); -int ieee80211_if_remove(struct net_device *dev, const char *name, int id); -void ieee80211_if_free(struct net_device *dev); -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); +int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, + enum ieee80211_if_types type); +void ieee80211_if_remove(struct net_device *dev); +void ieee80211_remove_interfaces(struct ieee80211_local *local); /* tx handling */ void ieee80211_clear_tx_pending(struct ieee80211_local *local); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index eeb16926aa7d..610ed1d9893a 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -2,6 +2,7 @@ * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2005-2006, Devicescape Software, Inc. * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> + * Copyright 2008, 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 @@ -17,145 +18,91 @@ #include "debugfs_netdev.h" #include "mesh.h" -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata) +/* + * Called when the netdev is removed or, by the code below, before + * the interface type changes. + */ +static void ieee80211_teardown_sdata(struct net_device *dev) { + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + struct beacon_data *beacon; + struct sk_buff *skb; + int flushed; int i; - /* Default values for sub-interface parameters */ - sdata->drop_unencrypted = 0; - for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) - skb_queue_head_init(&sdata->fragments[i].skb_list); - - INIT_LIST_HEAD(&sdata->key_list); -} + ieee80211_debugfs_remove_netdev(sdata); -static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata) -{ - int i; + /* free extra data */ + ieee80211_free_keys(sdata); for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) __skb_queue_purge(&sdata->fragments[i].skb_list); -} - -/* Must be called with rtnl lock held. */ -int ieee80211_if_add(struct net_device *dev, const char *name, - struct net_device **new_dev, int type, - struct vif_params *params) -{ - struct net_device *ndev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = NULL; - int ret; - - ASSERT_RTNL(); - ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, - name, ieee80211_if_setup); - if (!ndev) - return -ENOMEM; + sdata->fragment_next = 0; - ndev->needed_headroom = local->tx_headroom + - 4*6 /* four MAC addresses */ - + 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */ - + 6 /* mesh */ - + 8 /* rfc1042/bridge tunnel */ - - ETH_HLEN /* ethernet hard_header_len */ - + IEEE80211_ENCRYPT_HEADROOM; - ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM; - - ret = dev_alloc_name(ndev, ndev->name); - if (ret < 0) - goto fail; - - memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); - ndev->base_addr = dev->base_addr; - ndev->irq = dev->irq; - ndev->mem_start = dev->mem_start; - ndev->mem_end = dev->mem_end; - SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy)); - - sdata = IEEE80211_DEV_TO_SUB_IF(ndev); - ndev->ieee80211_ptr = &sdata->wdev; - sdata->wdev.wiphy = local->hw.wiphy; - sdata->vif.type = IEEE80211_IF_TYPE_AP; - sdata->dev = ndev; - sdata->local = local; - ieee80211_if_sdata_init(sdata); - - ret = register_netdevice(ndev); - if (ret) - goto fail; - - ieee80211_debugfs_add_netdev(sdata); - ieee80211_if_set_type(ndev, type); + switch (sdata->vif.type) { + case IEEE80211_IF_TYPE_AP: + beacon = sdata->u.ap.beacon; + rcu_assign_pointer(sdata->u.ap.beacon, NULL); + synchronize_rcu(); + kfree(beacon); - if (ieee80211_vif_is_mesh(&sdata->vif) && - params && params->mesh_id_len) - ieee80211_if_sta_set_mesh_id(&sdata->u.sta, - params->mesh_id_len, - params->mesh_id); + while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) { + local->total_ps_buffered--; + dev_kfree_skb(skb); + } - /* we're under RTNL so all this is fine */ - if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) { - __ieee80211_if_del(local, sdata); - return -ENODEV; + break; + case IEEE80211_IF_TYPE_MESH_POINT: + /* Allow compiler to elide mesh_rmc_free call. */ + if (ieee80211_vif_is_mesh(&sdata->vif)) + mesh_rmc_free(dev); + /* fall through */ + case IEEE80211_IF_TYPE_STA: + case IEEE80211_IF_TYPE_IBSS: + kfree(sdata->u.sta.extra_ie); + kfree(sdata->u.sta.assocreq_ies); + kfree(sdata->u.sta.assocresp_ies); + kfree_skb(sdata->u.sta.probe_resp); + break; + case IEEE80211_IF_TYPE_WDS: + case IEEE80211_IF_TYPE_VLAN: + case IEEE80211_IF_TYPE_MNTR: + break; + case IEEE80211_IF_TYPE_INVALID: + BUG(); + break; } - list_add_tail_rcu(&sdata->list, &local->interfaces); - if (new_dev) - *new_dev = ndev; - - return 0; - -fail: - free_netdev(ndev); - return ret; + flushed = sta_info_flush(local, sdata); + WARN_ON(flushed); } -void ieee80211_if_set_type(struct net_device *dev, int type) +/* + * Helper function to initialise an interface to a specific type. + */ +static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, + enum ieee80211_if_types type) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int oldtype = sdata->vif.type; - - /* - * We need to call this function on the master interface - * which already has a hard_start_xmit routine assigned - * which must not be changed. - */ - if (dev != sdata->local->mdev) - dev->hard_start_xmit = ieee80211_subif_start_xmit; + struct ieee80211_if_sta *ifsta; - /* - * Called even when register_netdevice fails, it would - * oops if assigned before initialising the rest. - */ - dev->uninit = ieee80211_if_reinit; + /* clear type-dependent union */ + memset(&sdata->u, 0, sizeof(sdata->u)); - /* most have no BSS pointer */ - sdata->bss = NULL; + /* and set some type-dependent values */ sdata->vif.type = type; - sdata->basic_rates = 0; + /* only monitor differs */ + sdata->dev->type = ARPHRD_ETHER; switch (type) { - case IEEE80211_IF_TYPE_WDS: - /* nothing special */ - break; - case IEEE80211_IF_TYPE_VLAN: - sdata->u.vlan.ap = NULL; - break; case IEEE80211_IF_TYPE_AP: - sdata->u.ap.force_unicast_rateidx = -1; - sdata->u.ap.max_ratectrl_rateidx = -1; skb_queue_head_init(&sdata->u.ap.ps_bc_buf); - sdata->bss = &sdata->u.ap; INIT_LIST_HEAD(&sdata->u.ap.vlans); break; case IEEE80211_IF_TYPE_MESH_POINT: case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: { - struct ieee80211_sub_if_data *msdata; - struct ieee80211_if_sta *ifsta; - + case IEEE80211_IF_TYPE_IBSS: ifsta = &sdata->u.sta; INIT_WORK(&ifsta->work, ieee80211_sta_work); setup_timer(&ifsta->timer, ieee80211_sta_timer, @@ -171,153 +118,152 @@ void ieee80211_if_set_type(struct net_device *dev, int type) if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4) ifsta->flags |= IEEE80211_STA_WMM_ENABLED; - msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev); - sdata->bss = &msdata->u.ap; - if (ieee80211_vif_is_mesh(&sdata->vif)) ieee80211_mesh_init_sdata(sdata); break; - } case IEEE80211_IF_TYPE_MNTR: - dev->type = ARPHRD_IEEE80211_RADIOTAP; - dev->hard_start_xmit = ieee80211_monitor_start_xmit; + sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP; + sdata->dev->hard_start_xmit = ieee80211_monitor_start_xmit; sdata->u.mntr_flags = MONITOR_FLAG_CONTROL | MONITOR_FLAG_OTHER_BSS; break; + case IEEE80211_IF_TYPE_WDS: + case IEEE80211_IF_TYPE_VLAN: + break; case IEEE80211_IF_TYPE_INVALID: BUG(); break; } - ieee80211_debugfs_change_if_type(sdata, oldtype); + + ieee80211_debugfs_add_netdev(sdata); } -/* Must be called with rtnl lock held. */ -void ieee80211_if_reinit(struct net_device *dev) +int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, + enum ieee80211_if_types type) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sk_buff *skb; - int flushed; + ASSERT_RTNL(); + + if (type == sdata->vif.type) + return 0; + + /* + * We could, here, on changes between IBSS/STA/MESH modes, + * invoke an MLME function instead that disassociates etc. + * and goes into the requested mode. + */ + + if (netif_running(sdata->dev)) + return -EBUSY; + + /* Purge and reset type-dependent state. */ + ieee80211_teardown_sdata(sdata->dev); + ieee80211_setup_sdata(sdata, type); + + /* reset some values that shouldn't be kept across type changes */ + sdata->basic_rates = 0; + sdata->drop_unencrypted = 0; + + return 0; +} + +int ieee80211_if_add(struct ieee80211_local *local, const char *name, + struct net_device **new_dev, enum ieee80211_if_types type, + struct vif_params *params) +{ + struct net_device *ndev; + struct ieee80211_sub_if_data *sdata = NULL; + int ret, i; ASSERT_RTNL(); - ieee80211_free_keys(sdata); + ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, + name, ieee80211_if_setup); + if (!ndev) + return -ENOMEM; - ieee80211_if_sdata_deinit(sdata); + ndev->needed_headroom = local->tx_headroom + + 4*6 /* four MAC addresses */ + + 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */ + + 6 /* mesh */ + + 8 /* rfc1042/bridge tunnel */ + - ETH_HLEN /* ethernet hard_header_len */ + + IEEE80211_ENCRYPT_HEADROOM; + ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM; - /* Need to handle mesh specially to allow eliding the function call */ - if (ieee80211_vif_is_mesh(&sdata->vif)) - mesh_rmc_free(dev); + ret = dev_alloc_name(ndev, ndev->name); + if (ret < 0) + goto fail; - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_INVALID: - /* cannot happen */ - WARN_ON(1); - break; - case IEEE80211_IF_TYPE_AP: { - /* Remove all virtual interfaces that use this BSS - * as their sdata->bss */ - struct ieee80211_sub_if_data *tsdata, *n; - struct beacon_data *beacon; - - list_for_each_entry_safe(tsdata, n, &local->interfaces, list) { - if (tsdata != sdata && tsdata->bss == &sdata->u.ap) { - printk(KERN_DEBUG "%s: removing virtual " - "interface %s because its BSS interface" - " is being removed\n", - sdata->dev->name, tsdata->dev->name); - list_del_rcu(&tsdata->list); - /* - * We have lots of time and can afford - * to sync for each interface - */ - synchronize_rcu(); - __ieee80211_if_del(local, tsdata); - } - } + memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); + SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy)); - beacon = sdata->u.ap.beacon; - rcu_assign_pointer(sdata->u.ap.beacon, NULL); - synchronize_rcu(); - kfree(beacon); + /* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */ + sdata = netdev_priv(ndev); + ndev->ieee80211_ptr = &sdata->wdev; - while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) { - local->total_ps_buffered--; - dev_kfree_skb(skb); - } + /* initialise type-independent data */ + sdata->wdev.wiphy = local->hw.wiphy; + sdata->local = local; + sdata->dev = ndev; - break; - } - case IEEE80211_IF_TYPE_WDS: - /* nothing to do */ - break; - case IEEE80211_IF_TYPE_MESH_POINT: - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - kfree(sdata->u.sta.extra_ie); - sdata->u.sta.extra_ie = NULL; - kfree(sdata->u.sta.assocreq_ies); - sdata->u.sta.assocreq_ies = NULL; - kfree(sdata->u.sta.assocresp_ies); - sdata->u.sta.assocresp_ies = NULL; - if (sdata->u.sta.probe_resp) { - dev_kfree_skb(sdata->u.sta.probe_resp); - sdata->u.sta.probe_resp = NULL; - } + for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) + skb_queue_head_init(&sdata->fragments[i].skb_list); - break; - case IEEE80211_IF_TYPE_MNTR: - dev->type = ARPHRD_ETHER; - break; - case IEEE80211_IF_TYPE_VLAN: - sdata->u.vlan.ap = NULL; - break; - } + INIT_LIST_HEAD(&sdata->key_list); - flushed = sta_info_flush(local, sdata); - WARN_ON(flushed); + sdata->force_unicast_rateidx = -1; + sdata->max_ratectrl_rateidx = -1; - memset(&sdata->u, 0, sizeof(sdata->u)); - ieee80211_if_sdata_init(sdata); -} + /* setup type-dependent data */ + ieee80211_setup_sdata(sdata, type); -/* Must be called with rtnl lock held. */ -void __ieee80211_if_del(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata) -{ - struct net_device *dev = sdata->dev; + ret = register_netdevice(ndev); + if (ret) + goto fail; - ieee80211_debugfs_remove_netdev(sdata); - unregister_netdevice(dev); - /* Except master interface, the net_device will be freed by - * net_device->destructor (i. e. ieee80211_if_free). */ + ndev->uninit = ieee80211_teardown_sdata; + + if (ieee80211_vif_is_mesh(&sdata->vif) && + params && params->mesh_id_len) + ieee80211_if_sta_set_mesh_id(&sdata->u.sta, + params->mesh_id_len, + params->mesh_id); + + list_add_tail_rcu(&sdata->list, &local->interfaces); + + if (new_dev) + *new_dev = ndev; + + return 0; + + fail: + free_netdev(ndev); + return ret; } -/* Must be called with rtnl lock held. */ -int ieee80211_if_remove(struct net_device *dev, const char *name, int id) +void ieee80211_if_remove(struct net_device *dev) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata, *n; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); ASSERT_RTNL(); - list_for_each_entry_safe(sdata, n, &local->interfaces, list) { - if ((sdata->vif.type == id || id == -1) && - strcmp(name, sdata->dev->name) == 0 && - sdata->dev != local->mdev) { - list_del_rcu(&sdata->list); - synchronize_rcu(); - __ieee80211_if_del(local, sdata); - return 0; - } - } - return -ENODEV; + list_del_rcu(&sdata->list); + synchronize_rcu(); + unregister_netdevice(dev); } -void ieee80211_if_free(struct net_device *dev) +/* + * Remove all interfaces, may only be called at hardware unregistration + * time because it doesn't do RCU-safe list removals. + */ +void ieee80211_remove_interfaces(struct ieee80211_local *local) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_sub_if_data *sdata, *tmp; - ieee80211_if_sdata_deinit(sdata); - free_netdev(dev); + ASSERT_RTNL(); + + list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) { + list_del(&sdata->list); + unregister_netdevice(sdata->dev); + } } diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 1c4d3ba6b878..36859e794928 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -105,7 +105,7 @@ static int ieee80211_master_open(struct net_device *dev) /* 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)) { + if (netif_running(sdata->dev)) { res = 0; break; } @@ -126,7 +126,7 @@ static int ieee80211_master_stop(struct net_device *dev) /* 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)) + if (netif_running(sdata->dev)) dev_close(sdata->dev); return 0; @@ -194,7 +194,7 @@ static int ieee80211_open(struct net_device *dev) list_for_each_entry(nsdata, &local->interfaces, list) { struct net_device *ndev = nsdata->dev; - if (ndev != dev && ndev != local->mdev && netif_running(ndev)) { + if (ndev != dev && netif_running(ndev)) { /* * Allow only a single IBSS interface to be up at any * time. This is restricted because beacon distribution @@ -210,30 +210,6 @@ static int ieee80211_open(struct net_device *dev) return -EBUSY; /* - * Disallow multiple IBSS/STA mode interfaces. - * - * This is a technical restriction, it is possible although - * most likely not IEEE 802.11 compliant to have multiple - * STAs with just a single hardware (the TSF timer will not - * be adjusted properly.) - * - * However, because mac80211 uses the master device's BSS - * information for each STA/IBSS interface, doing this will - * currently corrupt that BSS information completely, unless, - * a not very useful case, both STAs are associated to the - * same BSS. - * - * To remove this restriction, the BSS information needs to - * be embedded in the STA/IBSS mode sdata instead of using - * the master device's BSS structure. - */ - if ((sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) && - (nsdata->vif.type == IEEE80211_IF_TYPE_STA || - nsdata->vif.type == IEEE80211_IF_TYPE_IBSS)) - return -EBUSY; - - /* * The remaining checks are only performed for interfaces * with the same MAC address. */ @@ -252,7 +228,7 @@ static int ieee80211_open(struct net_device *dev) */ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN && nsdata->vif.type == IEEE80211_IF_TYPE_AP) - sdata->u.vlan.ap = nsdata; + sdata->bss = &nsdata->u.ap; } } @@ -262,10 +238,13 @@ static int ieee80211_open(struct net_device *dev) return -ENOLINK; break; case IEEE80211_IF_TYPE_VLAN: - if (!sdata->u.vlan.ap) + if (!sdata->bss) return -ENOLINK; + list_add(&sdata->u.vlan.list, &sdata->bss->vlans); break; case IEEE80211_IF_TYPE_AP: + sdata->bss = &sdata->u.ap; + break; case IEEE80211_IF_TYPE_STA: case IEEE80211_IF_TYPE_MNTR: case IEEE80211_IF_TYPE_IBSS: @@ -283,14 +262,13 @@ static int ieee80211_open(struct net_device *dev) if (local->ops->start) res = local->ops->start(local_to_hw(local)); if (res) - return res; + goto err_del_bss; need_hw_reconfig = 1; ieee80211_led_radio(local, local->hw.conf.radio_enabled); } switch (sdata->vif.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: @@ -329,7 +307,8 @@ static int ieee80211_open(struct net_device *dev) if (res) goto err_stop; - ieee80211_if_config(dev); + if (ieee80211_vif_is_mesh(&sdata->vif)) + ieee80211_start_mesh(sdata->dev); changed |= ieee80211_reset_erp_info(dev); ieee80211_bss_info_change_notify(sdata, changed); ieee80211_enable_keys(sdata); @@ -404,6 +383,10 @@ static int ieee80211_open(struct net_device *dev) err_stop: if (!local->open_count && local->ops->stop) local->ops->stop(local_to_hw(local)); + err_del_bss: + sdata->bss = NULL; + if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) + list_del(&sdata->u.vlan.list); return res; } @@ -486,7 +469,6 @@ static int ieee80211_stop(struct net_device *dev) switch (sdata->vif.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: @@ -549,6 +531,8 @@ static int ieee80211_stop(struct net_device *dev) local->ops->remove_interface(local_to_hw(local), &conf); } + sdata->bss = NULL; + if (local->open_count == 0) { if (netif_running(local->mdev)) dev_close(local->mdev); @@ -988,7 +972,6 @@ static const struct header_ops ieee80211_header_ops = { .cache_update = eth_header_cache_update, }; -/* Must not be called for mdev */ void ieee80211_if_setup(struct net_device *dev) { ether_setup(dev); @@ -998,62 +981,52 @@ void ieee80211_if_setup(struct net_device *dev) dev->change_mtu = ieee80211_change_mtu; dev->open = ieee80211_open; dev->stop = ieee80211_stop; - dev->destructor = ieee80211_if_free; + dev->destructor = free_netdev; } /* everything else */ -static int __ieee80211_if_config(struct net_device *dev, - struct sk_buff *beacon) +int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) { - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_local *local = sdata->local; struct ieee80211_if_conf conf; - if (!local->ops->config_interface || !netif_running(dev)) + if (WARN_ON(!netif_running(sdata->dev))) + return 0; + + if (!local->ops->config_interface) return 0; memset(&conf, 0, sizeof(conf)); - conf.type = sdata->vif.type; + conf.changed = changed; + if (sdata->vif.type == IEEE80211_IF_TYPE_STA || sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { conf.bssid = sdata->u.sta.bssid; conf.ssid = sdata->u.sta.ssid; conf.ssid_len = sdata->u.sta.ssid_len; - } else if (ieee80211_vif_is_mesh(&sdata->vif)) { - conf.beacon = beacon; - ieee80211_start_mesh(dev); } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { + conf.bssid = sdata->dev->dev_addr; conf.ssid = sdata->u.ap.ssid; conf.ssid_len = sdata->u.ap.ssid_len; - conf.beacon = beacon; + } else if (ieee80211_vif_is_mesh(&sdata->vif)) { + u8 zero[ETH_ALEN] = { 0 }; + conf.bssid = zero; + conf.ssid = zero; + conf.ssid_len = 0; + } else { + WARN_ON(1); + return -EINVAL; } - return local->ops->config_interface(local_to_hw(local), - &sdata->vif, &conf); -} -int ieee80211_if_config(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT && - (local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE)) - return ieee80211_if_config_beacon(dev); - return __ieee80211_if_config(dev, NULL); -} + if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID))) + return -EINVAL; -int ieee80211_if_config_beacon(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); - struct sk_buff *skb; + if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID))) + return -EINVAL; - if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE)) - return 0; - skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif); - if (!skb) - return -ENOMEM; - return __ieee80211_if_config(dev, skb); + return local->ops->config_interface(local_to_hw(local), + &sdata->vif, &conf); } int ieee80211_hw_config(struct ieee80211_local *local) @@ -1659,7 +1632,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) int result; enum ieee80211_band band; struct net_device *mdev; - struct ieee80211_sub_if_data *sdata; + struct wireless_dev *mwdev; /* * generic code guarantees at least one band, @@ -1699,8 +1672,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) hw->ampdu_queues = 0; #endif - /* for now, mdev needs sub_if_data :/ */ - mdev = alloc_netdev_mq(sizeof(struct ieee80211_sub_if_data), + mdev = alloc_netdev_mq(sizeof(struct wireless_dev), "wmaster%d", ether_setup, ieee80211_num_queues(hw)); if (!mdev) @@ -1709,13 +1681,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (ieee80211_num_queues(hw) > 1) mdev->features |= NETIF_F_MULTI_QUEUE; - sdata = IEEE80211_DEV_TO_SUB_IF(mdev); - mdev->ieee80211_ptr = &sdata->wdev; - sdata->wdev.wiphy = local->hw.wiphy; + mwdev = netdev_priv(mdev); + mdev->ieee80211_ptr = mwdev; + mwdev->wiphy = local->hw.wiphy; local->mdev = mdev; - ieee80211_rx_bss_list_init(mdev); + ieee80211_rx_bss_list_init(local); mdev->hard_start_xmit = ieee80211_master_start_xmit; mdev->open = ieee80211_master_open; @@ -1724,16 +1696,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) mdev->header_ops = &ieee80211_header_ops; mdev->set_multicast_list = ieee80211_master_set_multicast_list; - sdata->vif.type = IEEE80211_IF_TYPE_AP; - sdata->dev = mdev; - sdata->local = local; - sdata->u.ap.force_unicast_rateidx = -1; - sdata->u.ap.max_ratectrl_rateidx = -1; - ieee80211_if_sdata_init(sdata); - - /* no RCU needed since we're still during init phase */ - list_add_tail(&sdata->list, &local->interfaces); - name = wiphy_dev(local->hw.wiphy)->driver->name; local->hw.workqueue = create_freezeable_workqueue(name); if (!local->hw.workqueue) { @@ -1779,9 +1741,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (result < 0) 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, hw->rate_control_algorithm); if (result < 0) { @@ -1801,13 +1760,12 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_install_qdisc(local->mdev); /* add one default STA interface */ - result = ieee80211_if_add(local->mdev, "wlan%d", NULL, + result = ieee80211_if_add(local, "wlan%d", NULL, IEEE80211_IF_TYPE_STA, NULL); if (result) printk(KERN_WARNING "%s: Failed to add default virtual iface\n", wiphy_name(local->hw.wiphy)); - local->reg_state = IEEE80211_DEV_REGISTERED; rtnl_unlock(); ieee80211_led_init(local); @@ -1817,7 +1775,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) fail_wep: rate_control_deinitialize(local); fail_rate: - ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev)); unregister_netdevice(local->mdev); local->mdev = NULL; fail_dev: @@ -1827,10 +1784,8 @@ fail_sta_info: debugfs_hw_del(local); destroy_workqueue(local->hw.workqueue); fail_workqueue: - if (local->mdev != NULL) { - ieee80211_if_free(local->mdev); - local->mdev = NULL; - } + if (local->mdev) + free_netdev(local->mdev); fail_mdev_alloc: wiphy_unregister(local->hw.wiphy); return result; @@ -1840,42 +1795,27 @@ EXPORT_SYMBOL(ieee80211_register_hw); void ieee80211_unregister_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata, *tmp; tasklet_kill(&local->tx_pending_tasklet); tasklet_kill(&local->tasklet); rtnl_lock(); - BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED); - - local->reg_state = IEEE80211_DEV_UNREGISTERED; - /* * At this point, interface list manipulations are fine * because the driver cannot be handing us frames any * more and the tasklet is killed. */ - /* - * 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); - } + /* First, we remove all virtual interfaces. */ + ieee80211_remove_interfaces(local); /* then, finally, remove the master interface */ - __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev)); + unregister_netdevice(local->mdev); rtnl_unlock(); - ieee80211_rx_bss_list_deinit(local->mdev); + ieee80211_rx_bss_list_deinit(local); ieee80211_clear_tx_pending(local); sta_info_stop(local); rate_control_deinitialize(local); @@ -1892,8 +1832,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) wiphy_unregister(local->hw.wiphy); ieee80211_wep_free(local); ieee80211_led_exit(local); - ieee80211_if_free(local->mdev); - local->mdev = NULL; + free_netdev(local->mdev); } EXPORT_SYMBOL(ieee80211_unregister_hw); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index dbc8cf454bc0..8f51375317dd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -78,7 +78,7 @@ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst, static struct ieee80211_sta_bss * ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq, u8 *ssid, u8 ssid_len); -static void ieee80211_rx_bss_put(struct net_device *dev, +static void ieee80211_rx_bss_put(struct ieee80211_local *local, struct ieee80211_sta_bss *bss); static int ieee80211_sta_find_ibss(struct net_device *dev, struct ieee80211_if_sta *ifsta); @@ -345,7 +345,7 @@ static void ieee80211_sta_wmm_params(struct net_device *dev, params.aifs = pos[0] & 0x0f; params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4); params.cw_min = ecw2cw(pos[1] & 0x0f); - params.txop = pos[2] | (pos[3] << 8); + params.txop = get_unaligned_le16(pos + 2); #ifdef CONFIG_MAC80211_VERBOSE_DEBUG printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d " "cWmin=%d cWmax=%d txop=%d\n", @@ -554,7 +554,7 @@ static void ieee80211_set_associated(struct net_device *dev, changed |= ieee80211_handle_bss_capability(sdata, bss); - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); } if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { @@ -760,7 +760,7 @@ static void ieee80211_send_assoc(struct net_device *dev, (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)) capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); } else { rates = ~0; rates_len = sband->n_bitrates; @@ -992,7 +992,7 @@ static int ieee80211_privacy_mismatch(struct net_device *dev, wep_privacy = !!ieee80211_sta_wep_configured(dev); privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED); - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) return 0; @@ -2094,7 +2094,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, sta->last_signal = bss->signal; sta->last_qual = bss->qual; sta->last_noise = bss->noise; - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); } err = sta_info_insert(sta); @@ -2212,10 +2212,9 @@ static void __ieee80211_rx_bss_hash_add(struct net_device *dev, /* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_del(struct net_device *dev, +static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local, struct ieee80211_sta_bss *bss) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sta_bss *b, *prev = NULL; b = local->sta_bss_hash[STA_HASH(bss->bssid)]; while (b) { @@ -2367,39 +2366,35 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss) } -static void ieee80211_rx_bss_put(struct net_device *dev, +static void ieee80211_rx_bss_put(struct ieee80211_local *local, struct ieee80211_sta_bss *bss) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - local_bh_disable(); if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) { local_bh_enable(); return; } - __ieee80211_rx_bss_hash_del(dev, bss); + __ieee80211_rx_bss_hash_del(local, bss); list_del(&bss->list); spin_unlock_bh(&local->sta_bss_lock); ieee80211_rx_bss_free(bss); } -void ieee80211_rx_bss_list_init(struct net_device *dev) +void ieee80211_rx_bss_list_init(struct ieee80211_local *local) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); spin_lock_init(&local->sta_bss_lock); INIT_LIST_HEAD(&local->sta_bss_list); } -void ieee80211_rx_bss_list_deinit(struct net_device *dev) +void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local) { - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_sta_bss *bss, *tmp; list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list) - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); } @@ -2411,8 +2406,6 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, int res, rates, i, j; struct sk_buff *skb; struct ieee80211_mgmt *mgmt; - struct ieee80211_tx_info *control; - struct rate_selection ratesel; u8 *pos; struct ieee80211_sub_if_data *sdata; struct ieee80211_supported_band *sband; @@ -2430,7 +2423,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, local->ops->reset_tsf(local_to_hw(local)); } memcpy(ifsta->bssid, bss->bssid, ETH_ALEN); - res = ieee80211_if_config(dev); + res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID); if (res) return res; @@ -2444,19 +2437,16 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, if (res) return res; - /* Set beacon template */ + /* Build IBSS probe response */ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400); - do { - if (!skb) - break; - + if (skb) { skb_reserve(skb, local->hw.extra_tx_headroom); mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + sizeof(mgmt->u.beacon)); memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon)); mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_BEACON); + IEEE80211_STYPE_PROBE_RESP); memset(mgmt->da, 0xff, ETH_ALEN); memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); @@ -2500,61 +2490,22 @@ static int ieee80211_sta_join_ibss(struct net_device *dev, memcpy(pos, &bss->supp_rates[8], rates); } - control = IEEE80211_SKB_CB(skb); - - rate_control_get_rate(dev, sband, skb, &ratesel); - if (ratesel.rate_idx < 0) { - printk(KERN_DEBUG "%s: Failed to determine TX rate " - "for IBSS beacon\n", dev->name); - break; - } - control->control.vif = &sdata->vif; - control->tx_rate_idx = ratesel.rate_idx; - if (sdata->bss_conf.use_short_preamble && - sband->bitrates[ratesel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) - control->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; - control->antenna_sel_tx = local->hw.conf.antenna_sel_tx; - control->flags |= IEEE80211_TX_CTL_NO_ACK; - control->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT; - control->control.retry_limit = 1; - - ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC); - if (ifsta->probe_resp) { - mgmt = (struct ieee80211_mgmt *) - ifsta->probe_resp->data; - mgmt->frame_control = - IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_PROBE_RESP); - } else { - printk(KERN_DEBUG "%s: Could not allocate ProbeResp " - "template for IBSS\n", dev->name); - } + ifsta->probe_resp = skb; - if (local->ops->beacon_update && - local->ops->beacon_update(local_to_hw(local), skb) == 0) { - printk(KERN_DEBUG "%s: Configured IBSS beacon " - "template\n", dev->name); - skb = NULL; - } - - rates = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - for (i = 0; i < bss->supp_rates_len; i++) { - int bitrate = (bss->supp_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) - if (sband->bitrates[j].bitrate == bitrate) - rates |= BIT(j); - } - ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates; - - ieee80211_sta_def_wmm_params(dev, bss, 1); - } while (0); + ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); + } - if (skb) { - printk(KERN_DEBUG "%s: Failed to configure IBSS beacon " - "template\n", dev->name); - dev_kfree_skb(skb); + rates = 0; + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + for (i = 0; i < bss->supp_rates_len; i++) { + int bitrate = (bss->supp_rates[i] & 0x7f) * 5; + for (j = 0; j < sband->n_bitrates; j++) + if (sband->bitrates[j].bitrate == bitrate) + rates |= BIT(j); } + ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates; + + ieee80211_sta_def_wmm_params(dev, bss, 1); ifsta->state = IEEE80211_IBSS_JOINED; mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); @@ -2775,7 +2726,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev, */ if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && bss->probe_resp && beacon) { - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); return; } @@ -2918,7 +2869,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev, } } - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); } @@ -3338,7 +3289,7 @@ static void ieee80211_mesh_housekeeping(struct net_device *dev, free_plinks = mesh_plink_availables(sdata); if (free_plinks != sdata->u.sta.accepting_plinks) - ieee80211_if_config_beacon(dev); + ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); mod_timer(&ifsta->timer, jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL); @@ -3578,7 +3529,7 @@ static int ieee80211_sta_config_auth(struct net_device *dev, selected->ssid_len); ieee80211_sta_set_bssid(dev, selected->bssid); ieee80211_sta_def_wmm_params(dev, selected, 0); - ieee80211_rx_bss_put(dev, selected); + ieee80211_rx_bss_put(local, selected); ifsta->state = IEEE80211_AUTHENTICATE; ieee80211_sta_reset_auth(dev, ifsta); return 0; @@ -3655,7 +3606,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev, } ret = ieee80211_sta_join_ibss(dev, ifsta, bss); - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); return ret; } @@ -3711,7 +3662,7 @@ static int ieee80211_sta_find_ibss(struct net_device *dev, " based on configured SSID\n", dev->name, print_mac(mac, bssid)); ret = ieee80211_sta_join_ibss(dev, ifsta, bss); - ieee80211_rx_bss_put(dev, bss); + ieee80211_rx_bss_put(local, bss); return ret; } #ifdef CONFIG_MAC80211_IBSS_DEBUG @@ -3762,28 +3713,45 @@ int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_sta *ifsta; + int res; if (len > IEEE80211_MAX_SSID_LEN) return -EINVAL; ifsta = &sdata->u.sta; - if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) + if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) { + memset(ifsta->ssid, 0, sizeof(ifsta->ssid)); + memcpy(ifsta->ssid, ssid, len); + ifsta->ssid_len = len; ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifsta->ssid, ssid, len); - memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len); - ifsta->ssid_len = len; + + res = 0; + /* + * Hack! MLME code needs to be cleaned up to have different + * entry points for configuration and internal selection change + */ + if (netif_running(sdata->dev)) + res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); + if (res) { + printk(KERN_DEBUG "%s: Failed to config new SSID to " + "the low-level driver\n", dev->name); + return res; + } + } if (len) ifsta->flags |= IEEE80211_STA_SSID_SET; else ifsta->flags &= ~IEEE80211_STA_SSID_SET; + if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { ifsta->ibss_join_req = jiffies; ifsta->state = IEEE80211_IBSS_SEARCH; return ieee80211_sta_find_ibss(dev, ifsta); } + return 0; } @@ -3809,7 +3777,12 @@ int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid) if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { memcpy(ifsta->bssid, bssid, ETH_ALEN); - res = ieee80211_if_config(dev); + res = 0; + /* + * Hack! See also ieee80211_sta_set_ssid. + */ + if (netif_running(sdata->dev)) + res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID); if (res) { printk(KERN_DEBUG "%s: Failed to config new BSSID to " "the low-level driver\n", dev->name); @@ -3907,11 +3880,6 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw) rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { - - /* No need to wake the master device. */ - if (sdata->dev == local->mdev) - continue; - /* Tell AP we're back */ if (sdata->vif.type == IEEE80211_IF_TYPE_STA && sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) @@ -4077,12 +4045,6 @@ static int ieee80211_sta_start_scan(struct net_device *dev, rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { - - /* Don't stop the master interface, otherwise we can't transmit - * probes! */ - if (sdata->dev == local->mdev) - continue; - netif_stop_queue(sdata->dev); if (sdata->vif.type == IEEE80211_IF_TYPE_STA && (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) @@ -4398,7 +4360,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev, return NULL; } - if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) + if (compare_ether_addr(bssid, sdata->u.sta.bssid)) return NULL; #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -4473,12 +4435,10 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw, case IEEE80211_NOTIFY_RE_ASSOC: rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (sdata->vif.type != IEEE80211_IF_TYPE_STA) + continue; - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) { - ieee80211_sta_req_auth(sdata->dev, - &sdata->u.sta); - } - + ieee80211_sta_req_auth(sdata->dev, &sdata->u.sta); } rcu_read_unlock(); break; diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c index 742c5b06cffd..a914ba73ccf5 100644 --- a/net/mac80211/rc80211_pid_algo.c +++ b/net/mac80211/rc80211_pid_algo.c @@ -259,8 +259,8 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev, /* Don't update the state if we're not controlling the rate. */ sdata = sta->sdata; - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) { - sta->txrate_idx = sdata->bss->max_ratectrl_rateidx; + if (sdata->force_unicast_rateidx > -1) { + sta->txrate_idx = sdata->max_ratectrl_rateidx; goto unlock; } @@ -337,8 +337,8 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev, /* If a forced rate is in effect, select it. */ sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) - sta->txrate_idx = sdata->bss->force_unicast_rateidx; + if (sdata->force_unicast_rateidx > -1) + sta->txrate_idx = sdata->force_unicast_rateidx; rateidx = sta->txrate_idx; diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index fab443d717eb..6d9ae67c27ca 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -334,13 +334,18 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx) else rx->flags &= ~IEEE80211_RX_AMSDU; } else { - if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) { - /* Separate TID for management frames */ - tid = NUM_RX_DATA_QUEUES - 1; - } else { - /* no qos control present */ - tid = 0; /* 802.1d - Best Effort */ - } + /* + * IEEE 802.11-2007, 7.1.3.4.1 ("Sequence Number field"): + * + * Sequence numbers for management frames, QoS data + * frames with a broadcast/multicast address in the + * Address 1 field, and all non-QoS data frames sent + * by QoS STAs are assigned using an additional single + * modulo-4096 counter, [...] + * + * We also use that counter for non-QoS STAs. + */ + tid = NUM_RX_DATA_QUEUES - 1; } rx->queue = tid; @@ -647,8 +652,7 @@ static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) sdata = sta->sdata; - if (sdata->bss) - atomic_inc(&sdata->bss->num_sta_ps); + atomic_inc(&sdata->bss->num_sta_ps); set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n", @@ -667,8 +671,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta) sdata = sta->sdata; - if (sdata->bss) - atomic_dec(&sdata->bss->num_sta_ps); + atomic_dec(&sdata->bss->num_sta_ps); clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL); @@ -742,7 +745,9 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) sta->last_qual = rx->status->qual; sta->last_noise = rx->status->noise; - if (!ieee80211_has_morefrags(hdr->frame_control)) { + if (!ieee80211_has_morefrags(hdr->frame_control) && + (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP || + rx->sdata->vif.type == IEEE80211_IF_TYPE_VLAN)) { /* Change STA power saving mode only in the end of a frame * exchange sequence */ if (test_sta_flags(sta, WLAN_STA_PS) && @@ -1772,11 +1777,6 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, return 0; rx->flags &= ~IEEE80211_RX_RA_MATCH; } - if (sdata->dev == sdata->local->mdev && - !(rx->flags & IEEE80211_RX_IN_SCAN)) - /* do not receive anything via - * master device when not scanning */ - return 0; break; case IEEE80211_IF_TYPE_WDS: if (bssid || !ieee80211_is_data(hdr->frame_control)) @@ -2046,8 +2046,8 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, tid_agg_rx = sta->ampdu_mlme.tid_rx[tid]; - /* null data frames are excluded */ - if (unlikely(ieee80211_is_nullfunc(hdr->frame_control))) + /* qos null data frames are excluded */ + if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC))) goto end_reorder; /* new un-ordered ampdu frame - process it */ diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 47d2c1bbfcaa..f2ba653b9d69 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -320,7 +320,9 @@ int sta_info_insert(struct sta_info *sta) /* notify driver */ if (local->ops->sta_notify) { if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - sdata = sdata->u.vlan.ap; + sdata = container_of(sdata->bss, + struct ieee80211_sub_if_data, + u.ap); local->ops->sta_notify(local_to_hw(local), &sdata->vif, STA_NOTIFY_ADD, sta->addr); @@ -375,8 +377,10 @@ static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid) static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss, struct sta_info *sta) { - if (bss) - __bss_tim_set(bss, sta->aid); + BUG_ON(!bss); + + __bss_tim_set(bss, sta->aid); + if (sta->local->ops->set_tim) { sta->local->tim_in_locked_section = true; sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1); @@ -388,6 +392,8 @@ void sta_info_set_tim_bit(struct sta_info *sta) { unsigned long flags; + BUG_ON(!sta->sdata->bss); + spin_lock_irqsave(&sta->local->sta_lock, flags); __sta_info_set_tim_bit(sta->sdata->bss, sta); spin_unlock_irqrestore(&sta->local->sta_lock, flags); @@ -396,8 +402,10 @@ void sta_info_set_tim_bit(struct sta_info *sta) static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss, struct sta_info *sta) { - if (bss) - __bss_tim_clear(bss, sta->aid); + BUG_ON(!bss); + + __bss_tim_clear(bss, sta->aid); + if (sta->local->ops->set_tim) { sta->local->tim_in_locked_section = true; sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0); @@ -409,6 +417,8 @@ void sta_info_clear_tim_bit(struct sta_info *sta) { unsigned long flags; + BUG_ON(!sta->sdata->bss); + spin_lock_irqsave(&sta->local->sta_lock, flags); __sta_info_clear_tim_bit(sta->sdata->bss, sta); spin_unlock_irqrestore(&sta->local->sta_lock, flags); @@ -437,8 +447,9 @@ void __sta_info_unlink(struct sta_info **sta) list_del(&(*sta)->list); if (test_and_clear_sta_flags(*sta, WLAN_STA_PS)) { - if (sdata->bss) - atomic_dec(&sdata->bss->num_sta_ps); + BUG_ON(!sdata->bss); + + atomic_dec(&sdata->bss->num_sta_ps); __sta_info_clear_tim_bit(sdata->bss, *sta); } @@ -446,7 +457,9 @@ void __sta_info_unlink(struct sta_info **sta) if (local->ops->sta_notify) { if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - sdata = sdata->u.vlan.ap; + sdata = container_of(sdata->bss, + struct ieee80211_sub_if_data, + u.ap); local->ops->sta_notify(local_to_hw(local), &sdata->vif, STA_NOTIFY_REMOVE, (*sta)->addr); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 94311dcfe043..109db787ccb7 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -285,6 +285,7 @@ struct sta_info { unsigned long tx_fragments; int txrate_idx; int last_txrate_idx; + u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; #ifdef CONFIG_MAC80211_DEBUG_COUNTERS unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; #endif diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 9bd9faac3c3c..0fbadd8b983c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -38,16 +38,6 @@ /* misc utils */ -static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata, - struct ieee80211_hdr *hdr) -{ - /* Set the sequence number for this frame. */ - hdr->seq_ctrl = cpu_to_le16(sdata->sequence); - - /* Increase the sequence number. */ - sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ; -} - #ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP static void ieee80211_dump_frame(const char *ifname, const char *title, const struct sk_buff *skb) @@ -274,17 +264,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) return TX_CONTINUE; } -static ieee80211_tx_result debug_noinline -ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - - if (ieee80211_hdrlen(hdr->frame_control) >= 24) - ieee80211_include_sequence(tx->sdata, hdr); - - return TX_CONTINUE; -} - /* This function is called whenever the AP is about to exceed the maximum limit * of buffered frames for power saving STAs. This situation should not really * happen often during normal operation, so dropping the oldest buffered packet @@ -303,8 +282,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) list_for_each_entry_rcu(sdata, &local->interfaces, list) { struct ieee80211_if_ap *ap; - if (sdata->dev == local->mdev || - sdata->vif.type != IEEE80211_IF_TYPE_AP) + if (sdata->vif.type != IEEE80211_IF_TYPE_AP) continue; ap = &sdata->u.ap; skb = skb_dequeue(&ap->ps_bc_buf); @@ -346,8 +324,12 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) * This is done either by the hardware or us. */ - /* not AP/IBSS or ordered frame */ - if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER)) + /* powersaving STAs only in AP/VLAN mode */ + if (!tx->sdata->bss) + return TX_CONTINUE; + + /* no buffering for ordered frames */ + if (tx->fc & IEEE80211_FCTL_ORDER) return TX_CONTINUE; /* no stations in PS mode */ @@ -639,6 +621,49 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) } static ieee80211_tx_result debug_noinline +ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; + u16 *seq; + u8 *qc; + int tid; + + /* only for injected frames */ + if (unlikely(ieee80211_is_ctl(hdr->frame_control))) + return TX_CONTINUE; + + if (ieee80211_hdrlen(hdr->frame_control) < 24) + return TX_CONTINUE; + + if (!ieee80211_is_data_qos(hdr->frame_control)) { + info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; + return TX_CONTINUE; + } + + /* + * This should be true for injected/management frames only, for + * management frames we have set the IEEE80211_TX_CTL_ASSIGN_SEQ + * above since they are not QoS-data frames. + */ + if (!tx->sta) + return TX_CONTINUE; + + /* include per-STA, per-TID sequence counter */ + + qc = ieee80211_get_qos_ctl(hdr); + tid = *qc & IEEE80211_QOS_CTL_TID_MASK; + seq = &tx->sta->tid_seq[tid]; + + hdr->seq_ctrl = cpu_to_le16(*seq); + + /* Increase the sequence number. */ + *seq = (*seq + 0x10) & IEEE80211_SCTL_SEQ; + + return TX_CONTINUE; +} + +static ieee80211_tx_result debug_noinline ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; @@ -1107,12 +1132,12 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx) goto txh_done; CALL_TXH(ieee80211_tx_h_check_assoc) - CALL_TXH(ieee80211_tx_h_sequence) CALL_TXH(ieee80211_tx_h_ps_buf) CALL_TXH(ieee80211_tx_h_select_key) CALL_TXH(ieee80211_tx_h_michael_mic_add) CALL_TXH(ieee80211_tx_h_rate_ctrl) CALL_TXH(ieee80211_tx_h_misc) + CALL_TXH(ieee80211_tx_h_sequence) CALL_TXH(ieee80211_tx_h_fragment) /* handlers after fragment must be aware of tx info fragmentation! */ CALL_TXH(ieee80211_tx_h_encrypt) @@ -1785,17 +1810,17 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct ieee80211_local *local = hw_to_local(hw); - struct sk_buff *skb; + struct sk_buff *skb = NULL; struct ieee80211_tx_info *info; struct net_device *bdev; struct ieee80211_sub_if_data *sdata = NULL; struct ieee80211_if_ap *ap = NULL; + struct ieee80211_if_sta *ifsta = NULL; struct rate_selection rsel; struct beacon_data *beacon; struct ieee80211_supported_band *sband; struct ieee80211_mgmt *mgmt; int *num_beacons; - bool err = true; enum ieee80211_band band = local->hw.conf.channel->band; u8 *pos; @@ -1824,9 +1849,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, memcpy(skb_put(skb, beacon->head_len), beacon->head, beacon->head_len); - ieee80211_include_sequence(sdata, - (struct ieee80211_hdr *)skb->data); - /* * Not very nice, but we want to allow the driver to call * ieee80211_beacon_get() as a response to the set_tim() @@ -1849,9 +1871,24 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, beacon->tail, beacon->tail_len); num_beacons = &ap->num_beacons; + } else + goto out; + } else if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { + struct ieee80211_hdr *hdr; + ifsta = &sdata->u.sta; - err = false; - } + if (!ifsta->probe_resp) + goto out; + + skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC); + if (!skb) + goto out; + + hdr = (struct ieee80211_hdr *) skb->data; + hdr->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, + IEEE80211_STYPE_BEACON); + + num_beacons = &ifsta->num_beacons; } else if (ieee80211_vif_is_mesh(&sdata->vif)) { /* headroom, head length, tail length and maximum TIM length */ skb = dev_alloc_skb(local->tx_headroom + 400); @@ -1878,17 +1915,8 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, mesh_mgmt_ies_add(skb, sdata->dev); num_beacons = &sdata->u.sta.num_beacons; - - err = false; - } - - if (err) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "no beacon data avail for %s\n", - bdev->name); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - skb = NULL; + } else { + WARN_ON(1); goto out; } @@ -1910,14 +1938,18 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, info->control.vif = vif; info->tx_rate_idx = rsel.rate_idx; + + info->flags |= IEEE80211_TX_CTL_NO_ACK; + info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT; + info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; + info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ; if (sdata->bss_conf.use_short_preamble && sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE; + info->antenna_sel_tx = local->hw.conf.antenna_sel_tx; - info->flags |= IEEE80211_TX_CTL_NO_ACK; - info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT; info->control.retry_limit = 1; - info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; + (*num_beacons)++; out: rcu_read_unlock(); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ce62b163b82c..89ce4e07bd84 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -428,8 +428,6 @@ void ieee80211_iterate_active_interfaces( case IEEE80211_IF_TYPE_MESH_POINT: break; } - if (sdata->dev == local->mdev) - continue; if (netif_running(sdata->dev)) iterator(data, sdata->dev->dev_addr, &sdata->vif); @@ -463,8 +461,6 @@ void ieee80211_iterate_active_interfaces_atomic( case IEEE80211_IF_TYPE_MESH_POINT: break; } - if (sdata->dev == local->mdev) - continue; if (netif_running(sdata->dev)) iterator(data, sdata->dev->dev_addr, &sdata->vif); diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 736c32e340f2..34fa8ed1e784 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -296,15 +296,7 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev, return -EINVAL; } - if (type == sdata->vif.type) - return 0; - if (netif_running(dev)) - return -EBUSY; - - ieee80211_if_reinit(dev); - ieee80211_if_set_type(dev, type); - - return 0; + return ieee80211_if_change_type(sdata, type); } @@ -452,7 +444,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev, memset(sdata->u.ap.ssid + len, 0, IEEE80211_MAX_SSID_LEN - len); sdata->u.ap.ssid_len = len; - return ieee80211_if_config(dev); + return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID); } return -EOPNOTSUPP; } @@ -627,16 +619,14 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev, struct ieee80211_supported_band *sband; sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (!sdata->bss) - return -ENODEV; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates * target_rate = X, rate->fixed = 1 means only rate X * target_rate = X, rate->fixed = 0 means all rates <= X */ - sdata->bss->max_ratectrl_rateidx = -1; - sdata->bss->force_unicast_rateidx = -1; + sdata->max_ratectrl_rateidx = -1; + sdata->force_unicast_rateidx = -1; if (rate->value < 0) return 0; @@ -645,9 +635,9 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev, int this_rate = brate->bitrate; if (target_rate == this_rate) { - sdata->bss->max_ratectrl_rateidx = i; + sdata->max_ratectrl_rateidx = i; if (rate->fixed) - sdata->bss->force_unicast_rateidx = i; + sdata->force_unicast_rateidx = i; err = 0; break; } @@ -1009,6 +999,45 @@ static int ieee80211_ioctl_giwencode(struct net_device *dev, return 0; } +static int ieee80211_ioctl_siwpower(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *wrq, + char *extra) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_conf *conf = &local->hw.conf; + + if (wrq->disabled) { + conf->flags &= ~IEEE80211_CONF_PS; + return ieee80211_hw_config(local); + } + + switch (wrq->flags & IW_POWER_MODE) { + case IW_POWER_ON: /* If not specified */ + case IW_POWER_MODE: /* If set all mask */ + case IW_POWER_ALL_R: /* If explicitely state all */ + conf->flags |= IEEE80211_CONF_PS; + break; + default: /* Otherwise we don't support it */ + return -EINVAL; + } + + return ieee80211_hw_config(local); +} + +static int ieee80211_ioctl_giwpower(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_conf *conf = &local->hw.conf; + + wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS); + + return 0; +} + static int ieee80211_ioctl_siwauth(struct net_device *dev, struct iw_request_info *info, struct iw_param *data, char *extra) @@ -1211,8 +1240,8 @@ static const iw_handler ieee80211_handler[] = (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */ (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */ (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */ - (iw_handler) NULL, /* SIOCSIWPOWER */ - (iw_handler) NULL, /* SIOCGIWPOWER */ + (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */ + (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) NULL, /* -- hole -- */ (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */ |