diff options
Diffstat (limited to 'net/wireless')
-rw-r--r-- | net/wireless/Kconfig | 2 | ||||
-rw-r--r-- | net/wireless/Makefile | 2 | ||||
-rw-r--r-- | net/wireless/chan.c | 61 | ||||
-rw-r--r-- | net/wireless/core.c | 77 | ||||
-rw-r--r-- | net/wireless/core.h | 47 | ||||
-rw-r--r-- | net/wireless/debugfs.c | 2 | ||||
-rw-r--r-- | net/wireless/genregdb.awk | 1 | ||||
-rw-r--r-- | net/wireless/ibss.c | 25 | ||||
-rw-r--r-- | net/wireless/lib80211.c | 8 | ||||
-rw-r--r-- | net/wireless/lib80211_crypt_ccmp.c | 1 | ||||
-rw-r--r-- | net/wireless/lib80211_crypt_tkip.c | 19 | ||||
-rw-r--r-- | net/wireless/lib80211_crypt_wep.c | 1 | ||||
-rw-r--r-- | net/wireless/mesh.c | 142 | ||||
-rw-r--r-- | net/wireless/mlme.c | 268 | ||||
-rw-r--r-- | net/wireless/nl80211.c | 2776 | ||||
-rw-r--r-- | net/wireless/nl80211.h | 24 | ||||
-rw-r--r-- | net/wireless/radiotap.c | 61 | ||||
-rw-r--r-- | net/wireless/reg.c | 944 | ||||
-rw-r--r-- | net/wireless/reg.h | 2 | ||||
-rw-r--r-- | net/wireless/scan.c | 32 | ||||
-rw-r--r-- | net/wireless/sme.c | 13 | ||||
-rw-r--r-- | net/wireless/sysfs.c | 18 | ||||
-rw-r--r-- | net/wireless/util.c | 57 | ||||
-rw-r--r-- | net/wireless/wext-compat.c | 64 | ||||
-rw-r--r-- | net/wireless/wext-core.c | 28 | ||||
-rw-r--r-- | net/wireless/wext-priv.c | 2 | ||||
-rw-r--r-- | net/wireless/wext-sme.c | 2 |
27 files changed, 2359 insertions, 2320 deletions
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index d0ee29063e5d..1f1ef70f34f2 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -95,7 +95,7 @@ config CFG80211_DEBUGFS If unsure, say N. config CFG80211_INTERNAL_REGDB - bool "use statically compiled regulatory rules database" if EMBEDDED + bool "use statically compiled regulatory rules database" if EXPERT default n depends on CFG80211 ---help--- diff --git a/net/wireless/Makefile b/net/wireless/Makefile index e77e508126fa..55a28ab21db9 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -10,7 +10,7 @@ obj-$(CONFIG_WEXT_SPY) += wext-spy.o obj-$(CONFIG_WEXT_PRIV) += wext-priv.o cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o -cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o +cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o diff --git a/net/wireless/chan.c b/net/wireless/chan.c index d92d088026bf..17cd0c04d139 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -35,14 +35,47 @@ rdev_freq_to_chan(struct cfg80211_registered_device *rdev, if (!ht_cap->ht_supported) return NULL; - if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || - ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT) + if (channel_type != NL80211_CHAN_HT20 && + (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || + ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) return NULL; } return chan; } +static bool can_beacon_sec_chan(struct wiphy *wiphy, + struct ieee80211_channel *chan, + enum nl80211_channel_type channel_type) +{ + struct ieee80211_channel *sec_chan; + int diff; + + switch (channel_type) { + case NL80211_CHAN_HT40PLUS: + diff = 20; + break; + case NL80211_CHAN_HT40MINUS: + diff = -20; + break; + default: + return false; + } + + sec_chan = ieee80211_get_channel(wiphy, chan->center_freq + diff); + if (!sec_chan) + return false; + + /* we'll need a DFS capability later */ + if (sec_chan->flags & (IEEE80211_CHAN_DISABLED | + IEEE80211_CHAN_PASSIVE_SCAN | + IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_RADAR)) + return false; + + return true; +} + int cfg80211_set_freq(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, int freq, enum nl80211_channel_type channel_type) @@ -50,7 +83,7 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev, struct ieee80211_channel *chan; int result; - if (wdev->iftype == NL80211_IFTYPE_MONITOR) + if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR) wdev = NULL; if (wdev) { @@ -67,6 +100,28 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev, if (!chan) return -EINVAL; + /* Both channels should be able to initiate communication */ + if (wdev && (wdev->iftype == NL80211_IFTYPE_ADHOC || + wdev->iftype == NL80211_IFTYPE_AP || + wdev->iftype == NL80211_IFTYPE_AP_VLAN || + wdev->iftype == NL80211_IFTYPE_MESH_POINT || + wdev->iftype == NL80211_IFTYPE_P2P_GO)) { + switch (channel_type) { + case NL80211_CHAN_HT40PLUS: + case NL80211_CHAN_HT40MINUS: + if (!can_beacon_sec_chan(&rdev->wiphy, chan, + channel_type)) { + printk(KERN_DEBUG + "cfg80211: Secondary channel not " + "allowed to initiate communication\n"); + return -EINVAL; + } + break; + default: + break; + } + } + result = rdev->ops->set_channel(&rdev->wiphy, wdev ? wdev->netdev : NULL, chan, channel_type); diff --git a/net/wireless/core.c b/net/wireless/core.c index 37d0e0ab4432..e9a5f8ca4c27 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -4,6 +4,8 @@ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/if.h> #include <linux/module.h> #include <linux/err.h> @@ -216,8 +218,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, rdev->wiphy.debugfsdir, rdev->wiphy.debugfsdir->d_parent, newname)) - printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n", - newname); + pr_err("failed to rename debugfs dir to %s!\n", newname); nl80211_notify_dev_rename(rdev); @@ -253,11 +254,16 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, WARN_ON(err); wdev->netdev->features |= NETIF_F_NETNS_LOCAL; } + + return err; } wiphy_net_set(&rdev->wiphy, net); - return err; + err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev)); + WARN_ON(err); + + return 0; } static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data) @@ -326,6 +332,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf); WARN_ON(ops->add_station && !ops->del_station); WARN_ON(ops->add_mpath && !ops->del_mpath); + WARN_ON(ops->join_mesh && !ops->leave_mesh); alloc_size = sizeof(*rdev) + sizeof_priv; @@ -428,7 +435,7 @@ int wiphy_register(struct wiphy *wiphy) /* sanity check ifmodes */ WARN_ON(!ifmodes); - ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1; + ifmodes &= ((1 << NUM_NL80211_IFTYPES) - 1) & ~1; if (WARN_ON(ifmodes != wiphy->interface_modes)) wiphy->interface_modes = ifmodes; @@ -472,15 +479,13 @@ int wiphy_register(struct wiphy *wiphy) /* check and set up bitrates */ ieee80211_set_bitrate_flags(wiphy); + mutex_lock(&cfg80211_mutex); + res = device_add(&rdev->wiphy.dev); - if (res) + if (res) { + mutex_unlock(&cfg80211_mutex); return res; - - res = rfkill_register(rdev->rfkill); - if (res) - goto out_rm_dev; - - mutex_lock(&cfg80211_mutex); + } /* set up regulatory info */ wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE); @@ -488,8 +493,6 @@ int wiphy_register(struct wiphy *wiphy) list_add_rcu(&rdev->list, &cfg80211_rdev_list); cfg80211_rdev_list_generation++; - mutex_unlock(&cfg80211_mutex); - /* add to debugfs */ rdev->wiphy.debugfsdir = debugfs_create_dir(wiphy_name(&rdev->wiphy), @@ -509,10 +512,19 @@ int wiphy_register(struct wiphy *wiphy) } cfg80211_debugfs_rdev_add(rdev); + mutex_unlock(&cfg80211_mutex); + + /* + * due to a locking dependency this has to be outside of the + * cfg80211_mutex lock + */ + res = rfkill_register(rdev->rfkill); + if (res) + goto out_rm_dev; return 0; - out_rm_dev: +out_rm_dev: device_del(&rdev->wiphy.dev); return res; } @@ -678,8 +690,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, INIT_WORK(&wdev->cleanup_work, wdev_cleanup_work); INIT_LIST_HEAD(&wdev->event_list); spin_lock_init(&wdev->event_lock); - INIT_LIST_HEAD(&wdev->action_registrations); - spin_lock_init(&wdev->action_registrations_lock); + INIT_LIST_HEAD(&wdev->mgmt_registrations); + spin_lock_init(&wdev->mgmt_registrations_lock); mutex_lock(&rdev->devlist_mtx); list_add_rcu(&wdev->list, &rdev->netdev_list); @@ -689,8 +701,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj, "phy80211")) { - printk(KERN_ERR "wireless: failed to add phy80211 " - "symlink to netdev!\n"); + pr_err("failed to add phy80211 symlink to netdev!\n"); } wdev->netdev = dev; wdev->sme_state = CFG80211_SME_IDLE; @@ -719,6 +730,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, dev->ethtool_ops = &cfg80211_ethtool_ops; if ((wdev->iftype == NL80211_IFTYPE_STATION || + wdev->iftype == NL80211_IFTYPE_P2P_CLIENT || wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr) dev->priv_flags |= IFF_DONT_BRIDGE; break; @@ -727,6 +739,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, case NL80211_IFTYPE_ADHOC: cfg80211_leave_ibss(rdev, dev, true); break; + case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: wdev_lock(wdev); #ifdef CONFIG_CFG80211_WEXT @@ -740,6 +753,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, cfg80211_mlme_down(rdev, dev); wdev_unlock(wdev); break; + case NL80211_IFTYPE_MESH_POINT: + cfg80211_leave_mesh(rdev, dev); + break; default: break; } @@ -763,20 +779,37 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, } cfg80211_lock_rdev(rdev); mutex_lock(&rdev->devlist_mtx); -#ifdef CONFIG_CFG80211_WEXT wdev_lock(wdev); switch (wdev->iftype) { +#ifdef CONFIG_CFG80211_WEXT case NL80211_IFTYPE_ADHOC: cfg80211_ibss_wext_join(rdev, wdev); break; case NL80211_IFTYPE_STATION: cfg80211_mgd_wext_connect(rdev, wdev); break; +#endif +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + { + /* backward compat code... */ + struct mesh_setup setup; + memcpy(&setup, &default_mesh_setup, + sizeof(setup)); + /* back compat only needed for mesh_id */ + setup.mesh_id = wdev->ssid; + setup.mesh_id_len = wdev->mesh_id_up_len; + if (wdev->mesh_id_up_len) + __cfg80211_join_mesh(rdev, dev, + &setup, + &default_mesh_config); + break; + } +#endif default: break; } wdev_unlock(wdev); -#endif rdev->opencount++; mutex_unlock(&rdev->devlist_mtx); cfg80211_unlock_rdev(rdev); @@ -799,7 +832,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, sysfs_remove_link(&dev->dev.kobj, "phy80211"); list_del_rcu(&wdev->list); rdev->devlist_generation++; - cfg80211_mlme_purge_actions(wdev); + cfg80211_mlme_purge_registrations(wdev); #ifdef CONFIG_CFG80211_WEXT kfree(wdev->wext.keys); #endif @@ -894,7 +927,7 @@ out_fail_pernet: } subsys_initcall(cfg80211_init); -static void cfg80211_exit(void) +static void __exit cfg80211_exit(void) { debugfs_remove(ieee80211_debugfs_dir); nl80211_exit(); diff --git a/net/wireless/core.h b/net/wireless/core.h index ae930acf75e9..26a0a084e16b 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -86,7 +86,7 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) static inline bool wiphy_idx_valid(int wiphy_idx) { - return (wiphy_idx >= 0); + return wiphy_idx >= 0; } @@ -95,7 +95,10 @@ extern struct mutex cfg80211_mutex; extern struct list_head cfg80211_rdev_list; extern int cfg80211_rdev_list_generation; -#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex)) +static inline void assert_cfg80211_lock(void) +{ + lockdep_assert_held(&cfg80211_mutex); +} /* * You can use this to mark a wiphy_idx as not having an associated wiphy. @@ -202,8 +205,8 @@ static inline void wdev_unlock(struct wireless_dev *wdev) mutex_unlock(&wdev->mtx); } -#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx)); -#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx)); +#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx) +#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx) enum cfg80211_event_type { EVENT_CONNECT_RESULT, @@ -282,6 +285,20 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid); int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev); +/* mesh */ +extern const struct mesh_config default_mesh_config; +extern const struct mesh_setup default_mesh_setup; +int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev, + const struct mesh_setup *setup, + const struct mesh_config *conf); +int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev, + const struct mesh_setup *setup, + const struct mesh_config *conf); +int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev); + /* MLME */ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, struct net_device *dev, @@ -331,15 +348,17 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, const u8 *resp_ie, size_t resp_ie_len, u16 status, bool wextev, struct cfg80211_bss *bss); -int cfg80211_mlme_register_action(struct wireless_dev *wdev, u32 snd_pid, - const u8 *match_data, int match_len); -void cfg80211_mlme_unregister_actions(struct wireless_dev *wdev, u32 nlpid); -void cfg80211_mlme_purge_actions(struct wireless_dev *wdev); -int cfg80211_mlme_action(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - const u8 *buf, size_t len, u64 *cookie); +int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, + u16 frame_type, const u8 *match_data, + int match_len); +void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid); +void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev); +int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, bool offchan, + enum nl80211_channel_type channel_type, + bool channel_type_valid, unsigned int wait, + const u8 *buf, size_t len, u64 *cookie); /* SME */ int __cfg80211_connect(struct cfg80211_registered_device *rdev, @@ -370,7 +389,7 @@ bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev); /* internal helpers */ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, struct key_params *params, int key_idx, - const u8 *mac_addr); + bool pairwise, const u8 *mac_addr); void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, size_t ie_len, u16 reason, bool from_ap); void cfg80211_sme_scan_done(struct net_device *dev); diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c index a4991a3efec0..39765bcfb472 100644 --- a/net/wireless/debugfs.c +++ b/net/wireless/debugfs.c @@ -34,6 +34,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ static const struct file_operations name## _ops = { \ .read = name## _read, \ .open = cfg80211_open_file_generic, \ + .llseek = generic_file_llseek, \ }; DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", @@ -102,6 +103,7 @@ static ssize_t ht40allow_map_read(struct file *file, static const struct file_operations ht40allow_map_ops = { .read = ht40allow_map_read, .open = cfg80211_open_file_generic, + .llseek = default_llseek, }; #define DEBUGFS_ADD(name) \ diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk index 3cc9e69880a8..53c143f5e770 100644 --- a/net/wireless/genregdb.awk +++ b/net/wireless/genregdb.awk @@ -21,6 +21,7 @@ BEGIN { print "" print "#include <linux/nl80211.h>" print "#include <net/cfg80211.h>" + print "#include \"regdb.h\"" print "" regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n" } diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c index adcabba02e20..f33fbb79437c 100644 --- a/net/wireless/ibss.c +++ b/net/wireless/ibss.c @@ -88,6 +88,25 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, if (wdev->ssid_len) return -EALREADY; + if (!params->basic_rates) { + /* + * If no rates were explicitly configured, + * use the mandatory rate set for 11b or + * 11a for maximum compatibility. + */ + struct ieee80211_supported_band *sband = + rdev->wiphy.bands[params->channel->band]; + int j; + u32 flag = params->channel->band == IEEE80211_BAND_5GHZ ? + IEEE80211_RATE_MANDATORY_A : + IEEE80211_RATE_MANDATORY_B; + + for (j = 0; j < sband->n_bitrates; j++) { + if (sband->bitrates[j].flags & flag) + params->basic_rates |= BIT(j); + } + } + if (WARN_ON(wdev->connect_keys)) kfree(wdev->connect_keys); wdev->connect_keys = connkeys; @@ -141,7 +160,7 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext) */ if (rdev->ops->del_key) for (i = 0; i < 6; i++) - rdev->ops->del_key(wdev->wiphy, dev, i, NULL); + rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); if (wdev->current_bss) { cfg80211_unhold_bss(wdev->current_bss); @@ -247,8 +266,10 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev, if (!netif_running(wdev->netdev)) return 0; - if (wdev->wext.keys) + if (wdev->wext.keys) { wdev->wext.keys->def = wdev->wext.default_key; + wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key; + } wdev->wext.ibss.privacy = wdev->wext.default_key != -1; diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c index 97d411f74507..3268fac5ab22 100644 --- a/net/wireless/lib80211.c +++ b/net/wireless/lib80211.c @@ -13,6 +13,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/ctype.h> #include <linux/ieee80211.h> @@ -224,8 +226,8 @@ int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops) return -EINVAL; found: - printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm " - "'%s'\n", ops->name); + printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm '%s'\n", + ops->name); list_del(&alg->list); spin_unlock_irqrestore(&lib80211_crypto_lock, flags); kfree(alg); @@ -270,7 +272,7 @@ static struct lib80211_crypto_ops lib80211_crypt_null = { static int __init lib80211_init(void) { - printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION "\n"); + pr_info(DRV_DESCRIPTION "\n"); return lib80211_register_crypto_ops(&lib80211_crypt_null); } diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c index b7fa31d5fd13..dacb3b4b1bdb 100644 --- a/net/wireless/lib80211_crypt_ccmp.c +++ b/net/wireless/lib80211_crypt_ccmp.c @@ -467,7 +467,6 @@ static struct lib80211_crypto_ops lib80211_crypt_ccmp = { .name = "CCMP", .init = lib80211_ccmp_init, .deinit = lib80211_ccmp_deinit, - .build_iv = lib80211_ccmp_hdr, .encrypt_mpdu = lib80211_ccmp_encrypt, .decrypt_mpdu = lib80211_ccmp_decrypt, .encrypt_msdu = NULL, diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c index 8cbdb32ff316..7ea4f2b0770e 100644 --- a/net/wireless/lib80211_crypt_tkip.c +++ b/net/wireless/lib80211_crypt_tkip.c @@ -10,6 +10,8 @@ * more details. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/err.h> #include <linux/module.h> #include <linux/init.h> @@ -99,8 +101,7 @@ static void *lib80211_tkip_init(int key_idx) priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tx_tfm_arc4)) { - printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate " - "crypto API arc4\n"); + printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n")); priv->tx_tfm_arc4 = NULL; goto fail; } @@ -108,8 +109,7 @@ static void *lib80211_tkip_init(int key_idx) priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tx_tfm_michael)) { - printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate " - "crypto API michael_mic\n"); + printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n")); priv->tx_tfm_michael = NULL; goto fail; } @@ -117,8 +117,7 @@ static void *lib80211_tkip_init(int key_idx) priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->rx_tfm_arc4)) { - printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate " - "crypto API arc4\n"); + printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n")); priv->rx_tfm_arc4 = NULL; goto fail; } @@ -126,8 +125,7 @@ static void *lib80211_tkip_init(int key_idx) priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->rx_tfm_michael)) { - printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate " - "crypto API michael_mic\n"); + printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n")); priv->rx_tfm_michael = NULL; goto fail; } @@ -536,7 +534,7 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr, struct scatterlist sg[2]; if (tfm_michael == NULL) { - printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n"); + pr_warn("%s(): tfm_michael == NULL\n", __func__); return -1; } sg_init_table(sg, 2); @@ -578,7 +576,7 @@ static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr) } if (ieee80211_is_data_qos(hdr11->frame_control)) { - hdr[12] = le16_to_cpu(*ieee80211_get_qos_ctl(hdr11)) + hdr[12] = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(hdr11))) & IEEE80211_QOS_CTL_TID_MASK; } else hdr[12] = 0; /* priority */ @@ -757,7 +755,6 @@ static struct lib80211_crypto_ops lib80211_crypt_tkip = { .name = "TKIP", .init = lib80211_tkip_init, .deinit = lib80211_tkip_deinit, - .build_iv = lib80211_tkip_hdr, .encrypt_mpdu = lib80211_tkip_encrypt, .decrypt_mpdu = lib80211_tkip_decrypt, .encrypt_msdu = lib80211_michael_mic_add, diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c index 6d41e05ca33b..e2e88878ba35 100644 --- a/net/wireless/lib80211_crypt_wep.c +++ b/net/wireless/lib80211_crypt_wep.c @@ -269,7 +269,6 @@ static struct lib80211_crypto_ops lib80211_crypt_wep = { .name = "WEP", .init = lib80211_wep_init, .deinit = lib80211_wep_deinit, - .build_iv = lib80211_wep_build_iv, .encrypt_mpdu = lib80211_wep_encrypt, .decrypt_mpdu = lib80211_wep_decrypt, .encrypt_msdu = NULL, diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c new file mode 100644 index 000000000000..73e39c171ffb --- /dev/null +++ b/net/wireless/mesh.c @@ -0,0 +1,142 @@ +#include <linux/ieee80211.h> +#include <net/cfg80211.h> +#include "core.h" + +/* Default values, timeouts in ms */ +#define MESH_TTL 31 +#define MESH_DEFAULT_ELEMENT_TTL 31 +#define MESH_MAX_RETR 3 +#define MESH_RET_T 100 +#define MESH_CONF_T 100 +#define MESH_HOLD_T 100 + +#define MESH_PATH_TIMEOUT 5000 + +/* + * Minimum interval between two consecutive PREQs originated by the same + * interface + */ +#define MESH_PREQ_MIN_INT 10 +#define MESH_DIAM_TRAVERSAL_TIME 50 + +/* + * A path will be refreshed if it is used PATH_REFRESH_TIME milliseconds + * before timing out. This way it will remain ACTIVE and no data frames + * will be unnecessarily held in the pending queue. + */ +#define MESH_PATH_REFRESH_TIME 1000 +#define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME) + +/* Default maximum number of established plinks per interface */ +#define MESH_MAX_ESTAB_PLINKS 32 + +#define MESH_MAX_PREQ_RETRIES 4 + + +const struct mesh_config default_mesh_config = { + .dot11MeshRetryTimeout = MESH_RET_T, + .dot11MeshConfirmTimeout = MESH_CONF_T, + .dot11MeshHoldingTimeout = MESH_HOLD_T, + .dot11MeshMaxRetries = MESH_MAX_RETR, + .dot11MeshTTL = MESH_TTL, + .element_ttl = MESH_DEFAULT_ELEMENT_TTL, + .auto_open_plinks = true, + .dot11MeshMaxPeerLinks = MESH_MAX_ESTAB_PLINKS, + .dot11MeshHWMPactivePathTimeout = MESH_PATH_TIMEOUT, + .dot11MeshHWMPpreqMinInterval = MESH_PREQ_MIN_INT, + .dot11MeshHWMPnetDiameterTraversalTime = MESH_DIAM_TRAVERSAL_TIME, + .dot11MeshHWMPmaxPREQretries = MESH_MAX_PREQ_RETRIES, + .path_refresh_time = MESH_PATH_REFRESH_TIME, + .min_discovery_timeout = MESH_MIN_DISCOVERY_TIMEOUT, +}; + +const struct mesh_setup default_mesh_setup = { + .path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP, + .path_metric = IEEE80211_PATH_METRIC_AIRTIME, + .vendor_ie = NULL, + .vendor_ie_len = 0, +}; + +int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev, + const struct mesh_setup *setup, + const struct mesh_config *conf) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN); + + ASSERT_WDEV_LOCK(wdev); + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + if (wdev->mesh_id_len) + return -EALREADY; + + if (!setup->mesh_id_len) + return -EINVAL; + + if (!rdev->ops->join_mesh) + return -EOPNOTSUPP; + + err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup); + if (!err) { + memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len); + wdev->mesh_id_len = setup->mesh_id_len; + } + + return err; +} + +int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev, + const struct mesh_setup *setup, + const struct mesh_config *conf) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_join_mesh(rdev, dev, setup, conf); + wdev_unlock(wdev); + + return err; +} + +static int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + ASSERT_WDEV_LOCK(wdev); + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + if (!rdev->ops->leave_mesh) + return -EOPNOTSUPP; + + if (!wdev->mesh_id_len) + return -ENOTCONN; + + err = rdev->ops->leave_mesh(&rdev->wiphy, dev); + if (!err) + wdev->mesh_id_len = 0; + return err; +} + +int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, + struct net_device *dev) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + wdev_lock(wdev); + err = __cfg80211_leave_mesh(rdev, dev); + wdev_unlock(wdev); + + return err; +} diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 48ead6f0426d..aa5df8865ff7 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -44,10 +44,10 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len) } } - WARN_ON(!done); - - nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL); - cfg80211_sme_rx_auth(dev, buf, len); + if (done) { + nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL); + cfg80211_sme_rx_auth(dev, buf, len); + } wdev_unlock(wdev); } @@ -149,7 +149,7 @@ void __cfg80211_send_deauth(struct net_device *dev, struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; const u8 *bssid = mgmt->bssid; int i; - bool found = false; + bool found = false, was_current = false; ASSERT_WDEV_LOCK(wdev); @@ -159,6 +159,7 @@ void __cfg80211_send_deauth(struct net_device *dev, cfg80211_put_bss(&wdev->current_bss->pub); wdev->current_bss = NULL; found = true; + was_current = true; } else for (i = 0; i < MAX_AUTH_BSSES; i++) { if (wdev->auth_bsses[i] && memcmp(wdev->auth_bsses[i]->pub.bssid, bssid, ETH_ALEN) == 0) { @@ -183,7 +184,7 @@ void __cfg80211_send_deauth(struct net_device *dev, nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL); - if (wdev->sme_state == CFG80211_SME_CONNECTED) { + if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) { u16 reason_code; bool from_ap; @@ -262,6 +263,28 @@ void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len) } EXPORT_SYMBOL(cfg80211_send_disassoc); +void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, + size_t len) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + + nl80211_send_unprot_deauth(rdev, dev, buf, len, GFP_ATOMIC); +} +EXPORT_SYMBOL(cfg80211_send_unprot_deauth); + +void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, + size_t len) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + + nl80211_send_unprot_disassoc(rdev, dev, buf, len, GFP_ATOMIC); +} +EXPORT_SYMBOL(cfg80211_send_unprot_disassoc); + static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr) { int i; @@ -747,31 +770,53 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, } EXPORT_SYMBOL(cfg80211_new_sta); -struct cfg80211_action_registration { +struct cfg80211_mgmt_registration { struct list_head list; u32 nlpid; int match_len; + __le16 frame_type; + u8 match[]; }; -int cfg80211_mlme_register_action(struct wireless_dev *wdev, u32 snd_pid, - const u8 *match_data, int match_len) +int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, + u16 frame_type, const u8 *match_data, + int match_len) { - struct cfg80211_action_registration *reg, *nreg; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_mgmt_registration *reg, *nreg; int err = 0; + u16 mgmt_type; + + if (!wdev->wiphy->mgmt_stypes) + return -EOPNOTSUPP; + + if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) + return -EINVAL; + + if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) + return -EINVAL; + + mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4; + if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) + return -EINVAL; nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL); if (!nreg) return -ENOMEM; - spin_lock_bh(&wdev->action_registrations_lock); + spin_lock_bh(&wdev->mgmt_registrations_lock); - list_for_each_entry(reg, &wdev->action_registrations, list) { + list_for_each_entry(reg, &wdev->mgmt_registrations, list) { int mlen = min(match_len, reg->match_len); + if (frame_type != le16_to_cpu(reg->frame_type)) + continue; + if (memcmp(reg->match, match_data, mlen) == 0) { err = -EALREADY; break; @@ -786,132 +831,213 @@ int cfg80211_mlme_register_action(struct wireless_dev *wdev, u32 snd_pid, memcpy(nreg->match, match_data, match_len); nreg->match_len = match_len; nreg->nlpid = snd_pid; - list_add(&nreg->list, &wdev->action_registrations); + nreg->frame_type = cpu_to_le16(frame_type); + list_add(&nreg->list, &wdev->mgmt_registrations); + + if (rdev->ops->mgmt_frame_register) + rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, + frame_type, true); out: - spin_unlock_bh(&wdev->action_registrations_lock); + spin_unlock_bh(&wdev->mgmt_registrations_lock); + return err; } -void cfg80211_mlme_unregister_actions(struct wireless_dev *wdev, u32 nlpid) +void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid) { - struct cfg80211_action_registration *reg, *tmp; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_mgmt_registration *reg, *tmp; - spin_lock_bh(&wdev->action_registrations_lock); + spin_lock_bh(&wdev->mgmt_registrations_lock); - list_for_each_entry_safe(reg, tmp, &wdev->action_registrations, list) { - if (reg->nlpid == nlpid) { - list_del(®->list); - kfree(reg); + list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { + if (reg->nlpid != nlpid) + continue; + + if (rdev->ops->mgmt_frame_register) { + u16 frame_type = le16_to_cpu(reg->frame_type); + + rdev->ops->mgmt_frame_register(wiphy, wdev->netdev, + frame_type, false); } + + list_del(®->list); + kfree(reg); } - spin_unlock_bh(&wdev->action_registrations_lock); + spin_unlock_bh(&wdev->mgmt_registrations_lock); } -void cfg80211_mlme_purge_actions(struct wireless_dev *wdev) +void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev) { - struct cfg80211_action_registration *reg, *tmp; + struct cfg80211_mgmt_registration *reg, *tmp; - spin_lock_bh(&wdev->action_registrations_lock); + spin_lock_bh(&wdev->mgmt_registrations_lock); - list_for_each_entry_safe(reg, tmp, &wdev->action_registrations, list) { + list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) { list_del(®->list); kfree(reg); } - spin_unlock_bh(&wdev->action_registrations_lock); + spin_unlock_bh(&wdev->mgmt_registrations_lock); } -int cfg80211_mlme_action(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - const u8 *buf, size_t len, u64 *cookie) +int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, bool offchan, + enum nl80211_channel_type channel_type, + bool channel_type_valid, unsigned int wait, + const u8 *buf, size_t len, u64 *cookie) { struct wireless_dev *wdev = dev->ieee80211_ptr; const struct ieee80211_mgmt *mgmt; + u16 stype; + + if (!wdev->wiphy->mgmt_stypes) + return -EOPNOTSUPP; - if (rdev->ops->action == NULL) + if (!rdev->ops->mgmt_tx) return -EOPNOTSUPP; + if (len < 24 + 1) return -EINVAL; mgmt = (const struct ieee80211_mgmt *) buf; - if (!ieee80211_is_action(mgmt->frame_control)) + + if (!ieee80211_is_mgmt(mgmt->frame_control)) + return -EINVAL; + + stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE; + if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4))) return -EINVAL; - if (mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { - /* Verify that we are associated with the destination AP */ - if (!wdev->current_bss || - memcmp(wdev->current_bss->pub.bssid, mgmt->bssid, - ETH_ALEN) != 0 || - memcmp(wdev->current_bss->pub.bssid, mgmt->da, - ETH_ALEN) != 0) - return -ENOTCONN; + + if (ieee80211_is_action(mgmt->frame_control) && + mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) { + int err = 0; + + wdev_lock(wdev); + + switch (wdev->iftype) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + if (!wdev->current_bss) { + err = -ENOTCONN; + break; + } + + if (memcmp(wdev->current_bss->pub.bssid, + mgmt->bssid, ETH_ALEN)) { + err = -ENOTCONN; + break; + } + + /* + * check for IBSS DA must be done by driver as + * cfg80211 doesn't track the stations + */ + if (wdev->iftype == NL80211_IFTYPE_ADHOC) + break; + + /* for station, check that DA is the AP */ + if (memcmp(wdev->current_bss->pub.bssid, + mgmt->da, ETH_ALEN)) { + err = -ENOTCONN; + break; + } + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_AP_VLAN: + if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN)) + err = -EINVAL; + break; + default: + err = -EOPNOTSUPP; + break; + } + wdev_unlock(wdev); + + if (err) + return err; } if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0) return -EINVAL; /* Transmit the Action frame as requested by user space */ - return rdev->ops->action(&rdev->wiphy, dev, chan, channel_type, - buf, len, cookie); + return rdev->ops->mgmt_tx(&rdev->wiphy, dev, chan, offchan, + channel_type, channel_type_valid, + wait, buf, len, cookie); } -bool cfg80211_rx_action(struct net_device *dev, int freq, const u8 *buf, - size_t len, gfp_t gfp) +bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, + size_t len, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); - struct cfg80211_action_registration *reg; - const u8 *action_data; - int action_data_len; + struct cfg80211_mgmt_registration *reg; + const struct ieee80211_txrx_stypes *stypes = + &wiphy->mgmt_stypes[wdev->iftype]; + struct ieee80211_mgmt *mgmt = (void *)buf; + const u8 *data; + int data_len; bool result = false; + __le16 ftype = mgmt->frame_control & + cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE); + u16 stype; - /* frame length - min size excluding category */ - action_data_len = len - (IEEE80211_MIN_ACTION_SIZE - 1); + stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4; - /* action data starts with category */ - action_data = buf + IEEE80211_MIN_ACTION_SIZE - 1; + if (!(stypes->rx & BIT(stype))) + return false; - spin_lock_bh(&wdev->action_registrations_lock); + data = buf + ieee80211_hdrlen(mgmt->frame_control); + data_len = len - ieee80211_hdrlen(mgmt->frame_control); - list_for_each_entry(reg, &wdev->action_registrations, list) { - if (reg->match_len > action_data_len) + spin_lock_bh(&wdev->mgmt_registrations_lock); + + list_for_each_entry(reg, &wdev->mgmt_registrations, list) { + if (reg->frame_type != ftype) continue; - if (memcmp(reg->match, action_data, reg->match_len)) + if (reg->match_len > data_len) + continue; + + if (memcmp(reg->match, data, reg->match_len)) continue; /* found match! */ /* Indicate the received Action frame to user space */ - if (nl80211_send_action(rdev, dev, reg->nlpid, freq, - buf, len, gfp)) + if (nl80211_send_mgmt(rdev, dev, reg->nlpid, freq, + buf, len, gfp)) continue; result = true; break; } - spin_unlock_bh(&wdev->action_registrations_lock); + spin_unlock_bh(&wdev->mgmt_registrations_lock); return result; } -EXPORT_SYMBOL(cfg80211_rx_action); +EXPORT_SYMBOL(cfg80211_rx_mgmt); -void cfg80211_action_tx_status(struct net_device *dev, u64 cookie, - const u8 *buf, size_t len, bool ack, gfp_t gfp) +void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, + const u8 *buf, size_t len, bool ack, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); /* Indicate TX status of the Action frame to user space */ - nl80211_send_action_tx_status(rdev, dev, cookie, buf, len, ack, gfp); + nl80211_send_mgmt_tx_status(rdev, dev, cookie, buf, len, ack, gfp); } -EXPORT_SYMBOL(cfg80211_action_tx_status); +EXPORT_SYMBOL(cfg80211_mgmt_tx_status); void cfg80211_cqm_rssi_notify(struct net_device *dev, enum nl80211_cqm_rssi_threshold_event rssi_event, @@ -925,3 +1051,15 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp); } EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); + +void cfg80211_cqm_pktloss_notify(struct net_device *dev, + const u8 *peer, u32 num_packets, gfp_t gfp) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + + /* Indicate roaming trigger event to user space */ + nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp); +} +EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index aaa1aad566cd..9b62710891a2 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -23,6 +23,11 @@ #include "nl80211.h" #include "reg.h" +static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info); +static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info); + /* the netlink family */ static struct genl_family nl80211_fam = { .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ @@ -31,6 +36,8 @@ static struct genl_family nl80211_fam = { .version = 1, /* no particular meaning now */ .maxattr = NL80211_ATTR_MAX, .netnsok = true, + .pre_doit = nl80211_pre_doit, + .post_doit = nl80211_post_doit, }; /* internal helper: get rdev and dev */ @@ -86,6 +93,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, + [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, @@ -113,8 +121,9 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, .len = NL80211_MAX_SUPP_RATES }, + [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, - [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, + [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, .len = NL80211_HT_CAPABILITY_LEN }, @@ -136,6 +145,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { .len = sizeof(struct nl80211_sta_flag_update), }, [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, + [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, + [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, @@ -153,9 +164,17 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, + [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, + [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, + [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, + [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, + [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, + [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, + [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, + [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, }; -/* policy for the attributes */ +/* policy for the key attributes */ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, [NL80211_KEY_IDX] = { .type = NLA_U8 }, @@ -163,6 +182,15 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, + [NL80211_KEY_TYPE] = { .type = NLA_U32 }, + [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, +}; + +/* policy for the key default flags */ +static const struct nla_policy +nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { + [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, + [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, }; /* ifidx get helper */ @@ -185,6 +213,47 @@ static int nl80211_get_ifidx(struct netlink_callback *cb) return res; } +static int nl80211_prepare_netdev_dump(struct sk_buff *skb, + struct netlink_callback *cb, + struct cfg80211_registered_device **rdev, + struct net_device **dev) +{ + int ifidx = cb->args[0]; + int err; + + if (!ifidx) + ifidx = nl80211_get_ifidx(cb); + if (ifidx < 0) + return ifidx; + + cb->args[0] = ifidx; + + rtnl_lock(); + + *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); + if (!*dev) { + err = -ENODEV; + goto out_rtnl; + } + + *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); + if (IS_ERR(*rdev)) { + err = PTR_ERR(*rdev); + goto out_rtnl; + } + + return 0; + out_rtnl: + rtnl_unlock(); + return err; +} + +static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) +{ + cfg80211_unlock_rdev(rdev); + rtnl_unlock(); +} + /* IE validation */ static bool is_valid_ie_attr(const struct nlattr *attr) { @@ -252,7 +321,9 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct key_parse { struct key_params p; int idx; + int type; bool def, defmgmt; + bool def_uni, def_multi; }; static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) @@ -266,6 +337,13 @@ static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) k->def = !!tb[NL80211_KEY_DEFAULT]; k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; + if (k->def) { + k->def_uni = true; + k->def_multi = true; + } + if (k->defmgmt) + k->def_multi = true; + if (tb[NL80211_KEY_IDX]) k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); @@ -282,6 +360,25 @@ static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) if (tb[NL80211_KEY_CIPHER]) k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); + if (tb[NL80211_KEY_TYPE]) { + k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); + if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) + return -EINVAL; + } + + if (tb[NL80211_KEY_DEFAULT_TYPES]) { + struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; + int err = nla_parse_nested(kdt, + NUM_NL80211_KEY_DEFAULT_TYPES - 1, + tb[NL80211_KEY_DEFAULT_TYPES], + nl80211_key_default_policy); + if (err) + return err; + + k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; + k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; + } + return 0; } @@ -306,6 +403,32 @@ static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; + if (k->def) { + k->def_uni = true; + k->def_multi = true; + } + if (k->defmgmt) + k->def_multi = true; + + if (info->attrs[NL80211_ATTR_KEY_TYPE]) { + k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); + if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) + return -EINVAL; + } + + if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { + struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; + int err = nla_parse_nested( + kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, + info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], + nl80211_key_default_policy); + if (err) + return err; + + k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; + k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; + } + return 0; } @@ -315,6 +438,7 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) memset(k, 0, sizeof(*k)); k->idx = -1; + k->type = -1; if (info->attrs[NL80211_ATTR_KEY]) err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); @@ -327,6 +451,11 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) if (k->def && k->defmgmt) return -EINVAL; + if (k->defmgmt) { + if (k->def_uni || !k->def_multi) + return -EINVAL; + } + if (k->idx != -1) { if (k->defmgmt) { if (k->idx < 4 || k->idx > 5) @@ -376,10 +505,12 @@ nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, goto error; def = 1; result->def = parse.idx; + if (!parse.def_uni || !parse.def_multi) + goto error; } else if (parse.defmgmt) goto error; err = cfg80211_validate_key_settings(rdev, &parse.p, - parse.idx, NULL); + parse.idx, false, NULL); if (err) goto error; result->params[parse.idx].cipher = parse.p.cipher; @@ -398,18 +529,17 @@ static int nl80211_key_allowed(struct wireless_dev *wdev) { ASSERT_WDEV_LOCK(wdev); - if (!netif_running(wdev->netdev)) - return -ENETDOWN; - switch (wdev->iftype) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_P2P_GO: break; case NL80211_IFTYPE_ADHOC: if (!wdev->current_bss) return -ENOLINK; break; case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: if (wdev->sme_state != CFG80211_SME_CONNECTED) return -ENOLINK; break; @@ -434,6 +564,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, struct ieee80211_rate *rate; int i; u16 ifmodes = dev->wiphy.interface_modes; + const struct ieee80211_txrx_stypes *mgmt_stypes = + dev->wiphy.mgmt_stypes; hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); if (!hdr) @@ -455,12 +587,14 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, dev->wiphy.rts_threshold); NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, dev->wiphy.coverage_class); - NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, dev->wiphy.max_scan_ssids); NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, dev->wiphy.max_scan_ie_len); + if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) + NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); + NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, sizeof(u32) * dev->wiphy.n_cipher_suites, dev->wiphy.cipher_suites); @@ -468,6 +602,25 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, dev->wiphy.max_num_pmkids); + if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) + NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); + + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, + dev->wiphy.available_antennas_tx); + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, + dev->wiphy.available_antennas_rx); + + if ((dev->wiphy.available_antennas_tx || + dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { + u32 tx_ant = 0, rx_ant = 0; + int res; + res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); + if (!res) { + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant); + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant); + } + } + nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); if (!nl_modes) goto nla_put_failure; @@ -572,24 +725,27 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, CMD(add_beacon, NEW_BEACON); CMD(add_station, NEW_STATION); CMD(add_mpath, NEW_MPATH); - CMD(set_mesh_params, SET_MESH_PARAMS); + CMD(update_mesh_config, SET_MESH_CONFIG); CMD(change_bss, SET_BSS); CMD(auth, AUTHENTICATE); CMD(assoc, ASSOCIATE); CMD(deauth, DEAUTHENTICATE); CMD(disassoc, DISASSOCIATE); CMD(join_ibss, JOIN_IBSS); + CMD(join_mesh, JOIN_MESH); CMD(set_pmksa, SET_PMKSA); CMD(del_pmksa, DEL_PMKSA); CMD(flush_pmksa, FLUSH_PMKSA); CMD(remain_on_channel, REMAIN_ON_CHANNEL); CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); - CMD(action, ACTION); + CMD(mgmt_tx, FRAME); + CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { i++; NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); } CMD(set_channel, SET_CHANNEL); + CMD(set_wds_peer, SET_WDS_PEER); #undef CMD @@ -605,6 +761,63 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, nla_nest_end(msg, nl_cmds); + if (dev->ops->remain_on_channel) + NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, + dev->wiphy.max_remain_on_channel_duration); + + /* for now at least assume all drivers have it */ + if (dev->ops->mgmt_tx) + NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); + + if (mgmt_stypes) { + u16 stypes; + struct nlattr *nl_ftypes, *nl_ifs; + enum nl80211_iftype ift; + + nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); + if (!nl_ifs) + goto nla_put_failure; + + for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { + nl_ftypes = nla_nest_start(msg, ift); + if (!nl_ftypes) + goto nla_put_failure; + i = 0; + stypes = mgmt_stypes[ift].tx; + while (stypes) { + if (stypes & 1) + NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, + (i << 4) | IEEE80211_FTYPE_MGMT); + stypes >>= 1; + i++; + } + nla_nest_end(msg, nl_ftypes); + } + + nla_nest_end(msg, nl_ifs); + + nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); + if (!nl_ifs) + goto nla_put_failure; + + for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { + nl_ftypes = nla_nest_start(msg, ift); + if (!nl_ftypes) + goto nla_put_failure; + i = 0; + stypes = mgmt_stypes[ift].rx; + while (stypes) { + if (stypes & 1) + NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, + (i << 4) | IEEE80211_FTYPE_MGMT); + stypes >>= 1; + i++; + } + nla_nest_end(msg, nl_ftypes); + } + nla_nest_end(msg, nl_ifs); + } + return genlmsg_end(msg, hdr); nla_put_failure: @@ -641,28 +854,18 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; - struct cfg80211_registered_device *dev; - - dev = cfg80211_get_dev_from_info(info); - if (IS_ERR(dev)) - return PTR_ERR(dev); + struct cfg80211_registered_device *dev = info->user_ptr[0]; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) - goto out_err; - - if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) - goto out_free; + return -ENOMEM; - cfg80211_unlock_rdev(dev); + if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { + nlmsg_free(msg); + return -ENOBUFS; + } return genlmsg_reply(msg, info); - - out_free: - nlmsg_free(msg); - out_err: - cfg80211_unlock_rdev(dev); - return -ENOBUFS; } static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { @@ -706,7 +909,8 @@ static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) wdev->iftype == NL80211_IFTYPE_AP || wdev->iftype == NL80211_IFTYPE_WDS || wdev->iftype == NL80211_IFTYPE_MESH_POINT || - wdev->iftype == NL80211_IFTYPE_MONITOR; + wdev->iftype == NL80211_IFTYPE_MONITOR || + wdev->iftype == NL80211_IFTYPE_P2P_GO; } static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, @@ -750,38 +954,48 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *netdev; - int result; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *netdev = info->user_ptr[1]; - rtnl_lock(); + return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); +} - result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev); - if (result) - goto unlock; +static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + const u8 *bssid; - result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; - unlock: - rtnl_unlock(); + if (netif_running(dev)) + return -EBUSY; - return result; + if (!rdev->ops->set_wds_peer) + return -EOPNOTSUPP; + + if (wdev->iftype != NL80211_IFTYPE_WDS) + return -EOPNOTSUPP; + + bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); + return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); } + static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev; struct net_device *netdev = NULL; struct wireless_dev *wdev; - int result, rem_txq_params = 0; + int result = 0, rem_txq_params = 0; struct nlattr *nl_txq_params; u32 changed; u8 retry_short = 0, retry_long = 0; u32 frag_threshold = 0, rts_threshold = 0; u8 coverage_class = 0; - rtnl_lock(); - /* * Try to find the wiphy and netdev. Normally this * function shouldn't need the netdev, but this is @@ -808,8 +1022,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) rdev = __cfg80211_rdev_from_info(info); if (IS_ERR(rdev)) { mutex_unlock(&cfg80211_mutex); - result = PTR_ERR(rdev); - goto unlock; + return PTR_ERR(rdev); } wdev = NULL; netdev = NULL; @@ -869,6 +1082,63 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) goto bad_res; } + if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { + enum nl80211_tx_power_setting type; + int idx, mbm = 0; + + if (!rdev->ops->set_tx_power) { + result = -EOPNOTSUPP; + goto bad_res; + } + + idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; + type = nla_get_u32(info->attrs[idx]); + + if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && + (type != NL80211_TX_POWER_AUTOMATIC)) { + result = -EINVAL; + goto bad_res; + } + + if (type != NL80211_TX_POWER_AUTOMATIC) { + idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; + mbm = nla_get_u32(info->attrs[idx]); + } + + result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); + if (result) + goto bad_res; + } + + if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && + info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { + u32 tx_ant, rx_ant; + if ((!rdev->wiphy.available_antennas_tx && + !rdev->wiphy.available_antennas_rx) || + !rdev->ops->set_antenna) { + result = -EOPNOTSUPP; + goto bad_res; + } + + tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); + rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); + + /* reject antenna configurations which don't match the + * available antenna masks, except for the "all" mask */ + if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || + (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { + result = -EINVAL; + goto bad_res; + } + + tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; + rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; + + result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); + if (result) + goto bad_res; + } + changed = 0; if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { @@ -963,8 +1233,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) mutex_unlock(&rdev->mtx); if (netdev) dev_put(netdev); - unlock: - rtnl_unlock(); return result; } @@ -1044,33 +1312,20 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback * static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; - struct cfg80211_registered_device *dev; - struct net_device *netdev; - int err; - - err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); - if (err) - return err; + struct cfg80211_registered_device *dev = info->user_ptr[0]; + struct net_device *netdev = info->user_ptr[1]; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) - goto out_err; + return -ENOMEM; if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, - dev, netdev) < 0) - goto out_free; - - dev_put(netdev); - cfg80211_unlock_rdev(dev); + dev, netdev) < 0) { + nlmsg_free(msg); + return -ENOBUFS; + } return genlmsg_reply(msg, info); - - out_free: - nlmsg_free(msg); - out_err: - dev_put(netdev); - cfg80211_unlock_rdev(dev); - return -ENOBUFS; } static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { @@ -1107,7 +1362,7 @@ static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, enum nl80211_iftype iftype) { if (!use_4addr) { - if (netdev && netdev->br_port) + if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) return -EBUSY; return 0; } @@ -1130,42 +1385,42 @@ static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct vif_params params; int err; enum nl80211_iftype otype, ntype; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; u32 _flags, *flags = NULL; bool change = false; memset(¶ms, 0, sizeof(params)); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - otype = ntype = dev->ieee80211_ptr->iftype; if (info->attrs[NL80211_ATTR_IFTYPE]) { ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); if (otype != ntype) change = true; - if (ntype > NL80211_IFTYPE_MAX) { - err = -EINVAL; - goto unlock; - } + if (ntype > NL80211_IFTYPE_MAX) + return -EINVAL; } if (info->attrs[NL80211_ATTR_MESH_ID]) { - if (ntype != NL80211_IFTYPE_MESH_POINT) { - err = -EINVAL; - goto unlock; - } - params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); - params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); - change = true; + struct wireless_dev *wdev = dev->ieee80211_ptr; + + if (ntype != NL80211_IFTYPE_MESH_POINT) + return -EINVAL; + if (netif_running(dev)) + return -EBUSY; + + wdev_lock(wdev); + BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != + IEEE80211_MAX_MESH_ID_LEN); + wdev->mesh_id_up_len = + nla_len(info->attrs[NL80211_ATTR_MESH_ID]); + memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), + wdev->mesh_id_up_len); + wdev_unlock(wdev); } if (info->attrs[NL80211_ATTR_4ADDR]) { @@ -1173,20 +1428,18 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) change = true; err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); if (err) - goto unlock; + return err; } else { params.use_4addr = -1; } if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { - if (ntype != NL80211_IFTYPE_MONITOR) { - err = -EINVAL; - goto unlock; - } + if (ntype != NL80211_IFTYPE_MONITOR) + return -EINVAL; err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], &_flags); if (err) - goto unlock; + return err; flags = &_flags; change = true; @@ -1200,18 +1453,14 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) if (!err && params.use_4addr != -1) dev->ieee80211_ptr->use_4addr = params.use_4addr; - unlock: - dev_put(dev); - cfg80211_unlock_rdev(rdev); - unlock_rtnl: - rtnl_unlock(); return err; } static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct vif_params params; + struct net_device *dev; int err; enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; u32 flags; @@ -1227,72 +1476,52 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } - rtnl_lock(); - - rdev = cfg80211_get_dev_from_info(info); - if (IS_ERR(rdev)) { - err = PTR_ERR(rdev); - goto unlock_rtnl; - } - if (!rdev->ops->add_virtual_intf || - !(rdev->wiphy.interface_modes & (1 << type))) { - err = -EOPNOTSUPP; - goto unlock; - } - - if (type == NL80211_IFTYPE_MESH_POINT && - info->attrs[NL80211_ATTR_MESH_ID]) { - params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); - params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); - } + !(rdev->wiphy.interface_modes & (1 << type))) + return -EOPNOTSUPP; if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); if (err) - goto unlock; + return err; } err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, &flags); - err = rdev->ops->add_virtual_intf(&rdev->wiphy, + dev = rdev->ops->add_virtual_intf(&rdev->wiphy, nla_data(info->attrs[NL80211_ATTR_IFNAME]), type, err ? NULL : &flags, ¶ms); + if (IS_ERR(dev)) + return PTR_ERR(dev); - unlock: - cfg80211_unlock_rdev(rdev); - unlock_rtnl: - rtnl_unlock(); - return err; + if (type == NL80211_IFTYPE_MESH_POINT && + info->attrs[NL80211_ATTR_MESH_ID]) { + struct wireless_dev *wdev = dev->ieee80211_ptr; + + wdev_lock(wdev); + BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != + IEEE80211_MAX_MESH_ID_LEN); + wdev->mesh_id_up_len = + nla_len(info->attrs[NL80211_ATTR_MESH_ID]); + memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), + wdev->mesh_id_up_len); + wdev_unlock(wdev); + } + + return 0; } static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; - - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; - if (!rdev->ops->del_virtual_intf) { - err = -EOPNOTSUPP; - goto out; - } - - err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); + if (!rdev->ops->del_virtual_intf) + return -EOPNOTSUPP; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); - return err; + return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); } struct get_key_cookie { @@ -1345,11 +1574,12 @@ static void get_key_callback(void *c, struct key_params *params) static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; u8 key_idx = 0; - u8 *mac_addr = NULL; + const u8 *mac_addr = NULL; + bool pairwise; struct get_key_cookie cookie = { .error = 0, }; @@ -1365,30 +1595,28 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->get_key) { - err = -EOPNOTSUPP; - goto out; + pairwise = !!mac_addr; + if (info->attrs[NL80211_ATTR_KEY_TYPE]) { + u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); + if (kt >= NUM_NL80211_KEYTYPES) + return -EINVAL; + if (kt != NL80211_KEYTYPE_GROUP && + kt != NL80211_KEYTYPE_PAIRWISE) + return -EINVAL; + pairwise = kt == NL80211_KEYTYPE_PAIRWISE; } + if (!rdev->ops->get_key) + return -EOPNOTSUPP; + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } + if (!msg) + return -ENOMEM; hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, NL80211_CMD_NEW_KEY); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); - goto free_msg; - } + if (IS_ERR(hdr)) + return PTR_ERR(hdr); cookie.msg = msg; cookie.idx = key_idx; @@ -1398,8 +1626,12 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) if (mac_addr) NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, - &cookie, get_key_callback); + if (pairwise && mac_addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + return -ENOENT; + + err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, + mac_addr, &cookie, get_key_callback); if (err) goto free_msg; @@ -1408,30 +1640,21 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) goto nla_put_failure; genlmsg_end(msg, hdr); - err = genlmsg_reply(msg, info); - goto out; + return genlmsg_reply(msg, info); nla_put_failure: err = -ENOBUFS; free_msg: nlmsg_free(msg); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); - return err; } static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct key_parse key; int err; - struct net_device *dev; - int (*func)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index); + struct net_device *dev = info->user_ptr[1]; err = nl80211_parse_key(info, &key); if (err) @@ -1444,54 +1667,73 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) if (!key.def && !key.defmgmt) return -EINVAL; - rtnl_lock(); + wdev_lock(dev->ieee80211_ptr); - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; + if (key.def) { + if (!rdev->ops->set_default_key) { + err = -EOPNOTSUPP; + goto out; + } - if (key.def) - func = rdev->ops->set_default_key; - else - func = rdev->ops->set_default_mgmt_key; + err = nl80211_key_allowed(dev->ieee80211_ptr); + if (err) + goto out; - if (!func) { - err = -EOPNOTSUPP; - goto out; - } + if (!(rdev->wiphy.flags & + WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) { + if (!key.def_uni || !key.def_multi) { + err = -EOPNOTSUPP; + goto out; + } + } - wdev_lock(dev->ieee80211_ptr); - err = nl80211_key_allowed(dev->ieee80211_ptr); - if (!err) - err = func(&rdev->wiphy, dev, key.idx); + err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx, + key.def_uni, key.def_multi); + + if (err) + goto out; #ifdef CONFIG_CFG80211_WEXT - if (!err) { - if (func == rdev->ops->set_default_key) - dev->ieee80211_ptr->wext.default_key = key.idx; - else - dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; - } + dev->ieee80211_ptr->wext.default_key = key.idx; #endif - wdev_unlock(dev->ieee80211_ptr); + } else { + if (key.def_uni || !key.def_multi) { + err = -EINVAL; + goto out; + } - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); + if (!rdev->ops->set_default_mgmt_key) { + err = -EOPNOTSUPP; + goto out; + } - unlock_rtnl: - rtnl_unlock(); + err = nl80211_key_allowed(dev->ieee80211_ptr); + if (err) + goto out; + + err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, + dev, key.idx); + if (err) + goto out; + +#ifdef CONFIG_CFG80211_WEXT + dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; +#endif + } + + out: + wdev_unlock(dev->ieee80211_ptr); return err; } static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct key_parse key; - u8 *mac_addr = NULL; + const u8 *mac_addr = NULL; err = nl80211_parse_key(info, &key); if (err) @@ -1503,43 +1745,42 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); + if (key.type == -1) { + if (mac_addr) + key.type = NL80211_KEYTYPE_PAIRWISE; + else + key.type = NL80211_KEYTYPE_GROUP; + } - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; + /* for now */ + if (key.type != NL80211_KEYTYPE_PAIRWISE && + key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; - if (!rdev->ops->add_key) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->add_key) + return -EOPNOTSUPP; - if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { - err = -EINVAL; - goto out; - } + if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, + mac_addr)) + return -EINVAL; wdev_lock(dev->ieee80211_ptr); err = nl80211_key_allowed(dev->ieee80211_ptr); if (!err) err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, mac_addr, &key.p); wdev_unlock(dev->ieee80211_ptr); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); - return err; } static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; u8 *mac_addr = NULL; struct key_parse key; @@ -1550,21 +1791,32 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); + if (key.type == -1) { + if (mac_addr) + key.type = NL80211_KEYTYPE_PAIRWISE; + else + key.type = NL80211_KEYTYPE_GROUP; + } - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; + /* for now */ + if (key.type != NL80211_KEYTYPE_PAIRWISE && + key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; - if (!rdev->ops->del_key) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->del_key) + return -EOPNOTSUPP; wdev_lock(dev->ieee80211_ptr); err = nl80211_key_allowed(dev->ieee80211_ptr); + + if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + err = -ENOENT; + if (!err) - err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); + err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, + mac_addr); #ifdef CONFIG_CFG80211_WEXT if (!err) { @@ -1576,13 +1828,6 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) #endif wdev_unlock(dev->ieee80211_ptr); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - - unlock_rtnl: - rtnl_unlock(); - return err; } @@ -1590,35 +1835,25 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) { int (*call)(struct wiphy *wiphy, struct net_device *dev, struct beacon_parameters *info); - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct beacon_parameters params; int haveinfo = 0; if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { - err = -EOPNOTSUPP; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; switch (info->genlhdr->cmd) { case NL80211_CMD_NEW_BEACON: /* these are required for NEW_BEACON */ if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || !info->attrs[NL80211_ATTR_DTIM_PERIOD] || - !info->attrs[NL80211_ATTR_BEACON_HEAD]) { - err = -EINVAL; - goto out; - } + !info->attrs[NL80211_ATTR_BEACON_HEAD]) + return -EINVAL; call = rdev->ops->add_beacon; break; @@ -1627,14 +1862,11 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) break; default: WARN_ON(1); - err = -EOPNOTSUPP; - goto out; + return -EOPNOTSUPP; } - if (!call) { - err = -EOPNOTSUPP; - goto out; - } + if (!call) + return -EOPNOTSUPP; memset(¶ms, 0, sizeof(params)); @@ -1664,52 +1896,25 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) haveinfo = 1; } - if (!haveinfo) { - err = -EINVAL; - goto out; - } - - err = call(&rdev->wiphy, dev, ¶ms); - - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); + if (!haveinfo) + return -EINVAL; - return err; + return call(&rdev->wiphy, dev, ¶ms); } static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; - - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->del_beacon) { - err = -EOPNOTSUPP; - goto out; - } + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { - err = -EOPNOTSUPP; - goto out; - } - err = rdev->ops->del_beacon(&rdev->wiphy, dev); + if (!rdev->ops->del_beacon) + return -EOPNOTSUPP; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; - return err; + return rdev->ops->del_beacon(&rdev->wiphy, dev); } static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { @@ -1804,6 +2009,9 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, if (sinfo->filled & STATION_INFO_SIGNAL) NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, sinfo->signal); + if (sinfo->filled & STATION_INFO_SIGNAL_AVG) + NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, + sinfo->signal_avg); if (sinfo->filled & STATION_INFO_TX_BITRATE) { txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); if (!txrate) @@ -1830,6 +2038,12 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, if (sinfo->filled & STATION_INFO_TX_PACKETS) NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, sinfo->tx_packets); + if (sinfo->filled & STATION_INFO_TX_RETRIES) + NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES, + sinfo->tx_retries); + if (sinfo->filled & STATION_INFO_TX_FAILED) + NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED, + sinfo->tx_failed); nla_nest_end(msg, sinfoattr); return genlmsg_end(msg, hdr); @@ -1846,28 +2060,12 @@ static int nl80211_dump_station(struct sk_buff *skb, struct cfg80211_registered_device *dev; struct net_device *netdev; u8 mac_addr[ETH_ALEN]; - int ifidx = cb->args[0]; int sta_idx = cb->args[1]; int err; - if (!ifidx) - ifidx = nl80211_get_ifidx(cb); - if (ifidx < 0) - return ifidx; - - rtnl_lock(); - - netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); - if (!netdev) { - err = -ENODEV; - goto out_rtnl; - } - - dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); - if (IS_ERR(dev)) { - err = PTR_ERR(dev); - goto out_rtnl; - } + err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); + if (err) + return err; if (!dev->ops->dump_station) { err = -EOPNOTSUPP; @@ -1897,21 +2095,19 @@ static int nl80211_dump_station(struct sk_buff *skb, cb->args[1] = sta_idx; err = skb->len; out_err: - cfg80211_unlock_rdev(dev); - out_rtnl: - rtnl_unlock(); + nl80211_finish_netdev_dump(dev); return err; } static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct station_info sinfo; struct sk_buff *msg; u8 *mac_addr = NULL; + int err; memset(&sinfo, 0, sizeof(sinfo)); @@ -1920,41 +2116,24 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->get_station) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->get_station) + return -EOPNOTSUPP; err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); if (err) - goto out; + return err; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) - goto out; + return -ENOMEM; if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, - dev, mac_addr, &sinfo) < 0) - goto out_free; - - err = genlmsg_reply(msg, info); - goto out; - - out_free: - nlmsg_free(msg); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + dev, mac_addr, &sinfo) < 0) { + nlmsg_free(msg); + return -ENOBUFS; + } - return err; + return genlmsg_reply(msg, info); } /* @@ -1984,9 +2163,9 @@ static int get_vlan(struct genl_info *info, static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct station_parameters params; u8 *mac_addr = NULL; @@ -2024,12 +2203,6 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) params.plink_action = nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - err = get_vlan(info, rdev, ¶ms.vlan); if (err) goto out; @@ -2040,10 +2213,12 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) switch (dev->ieee80211_ptr->iftype) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_P2P_GO: /* disallow mesh-specific things */ if (params.plink_action) err = -EINVAL; break; + case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: /* disallow everything but AUTHORIZED flag */ if (params.plink_action) @@ -2089,19 +2264,15 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) out: if (params.vlan) dev_put(params.vlan); - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); return err; } static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct station_parameters params; u8 *mac_addr = NULL; @@ -2138,17 +2309,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) if (parse_station_flags(info, ¶ms)) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { - err = -EINVAL; - goto out; - } + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EINVAL; err = get_vlan(info, rdev, ¶ms.vlan); if (err) @@ -2162,61 +2326,33 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) goto out; } - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } - err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); out: if (params.vlan) dev_put(params.vlan); - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); - return err; } static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u8 *mac_addr = NULL; if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EINVAL; - goto out; - } - - if (!rdev->ops->del_station) { - err = -EOPNOTSUPP; - goto out; - } - - err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EINVAL; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (!rdev->ops->del_station) + return -EOPNOTSUPP; - return err; + return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); } static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, @@ -2279,28 +2415,12 @@ static int nl80211_dump_mpath(struct sk_buff *skb, struct net_device *netdev; u8 dst[ETH_ALEN]; u8 next_hop[ETH_ALEN]; - int ifidx = cb->args[0]; int path_idx = cb->args[1]; int err; - if (!ifidx) - ifidx = nl80211_get_ifidx(cb); - if (ifidx < 0) - return ifidx; - - rtnl_lock(); - - netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); - if (!netdev) { - err = -ENODEV; - goto out_rtnl; - } - - dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); - if (IS_ERR(dev)) { - err = PTR_ERR(dev); - goto out_rtnl; - } + err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); + if (err) + return err; if (!dev->ops->dump_mpath) { err = -EOPNOTSUPP; @@ -2334,18 +2454,15 @@ static int nl80211_dump_mpath(struct sk_buff *skb, cb->args[1] = path_idx; err = skb->len; out_err: - cfg80211_unlock_rdev(dev); - out_rtnl: - rtnl_unlock(); - + nl80211_finish_netdev_dump(dev); return err; } static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct mpath_info pinfo; struct sk_buff *msg; u8 *dst = NULL; @@ -2358,53 +2475,33 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) dst = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->get_mpath) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->get_mpath) + return -EOPNOTSUPP; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EOPNOTSUPP; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); if (err) - goto out; + return err; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) - goto out; + return -ENOMEM; if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, - dev, dst, next_hop, &pinfo) < 0) - goto out_free; - - err = genlmsg_reply(msg, info); - goto out; - - out_free: - nlmsg_free(msg); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + dev, dst, next_hop, &pinfo) < 0) { + nlmsg_free(msg); + return -ENOBUFS; + } - return err; + return genlmsg_reply(msg, info); } static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u8 *dst = NULL; u8 *next_hop = NULL; @@ -2417,42 +2514,19 @@ static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) dst = nla_data(info->attrs[NL80211_ATTR_MAC]); next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->change_mpath) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } - - err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); + if (!rdev->ops->change_mpath) + return -EOPNOTSUPP; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; - return err; + return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); } + static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u8 *dst = NULL; u8 *next_hop = NULL; @@ -2465,75 +2539,34 @@ static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) dst = nla_data(info->attrs[NL80211_ATTR_MAC]); next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->add_mpath) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } - - err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); + if (!rdev->ops->add_mpath) + return -EOPNOTSUPP; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; - return err; + return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); } static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u8 *dst = NULL; if (info->attrs[NL80211_ATTR_MAC]) dst = nla_data(info->attrs[NL80211_ATTR_MAC]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->del_mpath) { - err = -EOPNOTSUPP; - goto out; - } - - err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); - - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (!rdev->ops->del_mpath) + return -EOPNOTSUPP; - return err; + return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); } static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct bss_parameters params; memset(¶ms, 0, sizeof(params)); @@ -2542,6 +2575,7 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) params.use_short_preamble = -1; params.use_short_slot_time = -1; params.ap_isolate = -1; + params.ht_opmode = -1; if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) params.use_cts_prot = @@ -2560,32 +2594,18 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_AP_ISOLATE]) params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); + if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) + params.ht_opmode = + nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->change_bss) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { - err = -EOPNOTSUPP; - goto out; - } - - err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); + if (!rdev->ops->change_bss) + return -EOPNOTSUPP; - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; - return err; + return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); } static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { @@ -2661,45 +2681,45 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) return r; } -static int nl80211_get_mesh_params(struct sk_buff *skb, - struct genl_info *info) +static int nl80211_get_mesh_config(struct sk_buff *skb, + struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; struct mesh_config cur_params; - int err; - struct net_device *dev; + int err = 0; void *hdr; struct nlattr *pinfoattr; struct sk_buff *msg; - rtnl_lock(); + if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; - /* Look up our device */ - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; + if (!rdev->ops->get_mesh_config) + return -EOPNOTSUPP; - if (!rdev->ops->get_mesh_params) { - err = -EOPNOTSUPP; - goto out; - } + wdev_lock(wdev); + /* If not connected, get default parameters */ + if (!wdev->mesh_id_len) + memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); + else + err = rdev->ops->get_mesh_config(&rdev->wiphy, dev, + &cur_params); + wdev_unlock(wdev); - /* Get the mesh params */ - err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); if (err) - goto out; + return err; /* Draw up a netlink message to send back */ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) { - err = -ENOBUFS; - goto out; - } + if (!msg) + return -ENOMEM; hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, - NL80211_CMD_GET_MESH_PARAMS); + NL80211_CMD_GET_MESH_CONFIG); if (!hdr) goto nla_put_failure; - pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); + pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); if (!pinfoattr) goto nla_put_failure; NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); @@ -2715,6 +2735,8 @@ static int nl80211_get_mesh_params(struct sk_buff *skb, cur_params.dot11MeshMaxRetries); NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, cur_params.dot11MeshTTL); + NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL, + cur_params.element_ttl); NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, cur_params.auto_open_plinks); NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, @@ -2733,30 +2755,14 @@ static int nl80211_get_mesh_params(struct sk_buff *skb, cur_params.dot11MeshHWMPRootMode); nla_nest_end(msg, pinfoattr); genlmsg_end(msg, hdr); - err = genlmsg_reply(msg, info); - goto out; + return genlmsg_reply(msg, info); nla_put_failure: genlmsg_cancel(msg, hdr); - err = -EMSGSIZE; - out: - /* Cleanup */ - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); - - return err; + nlmsg_free(msg); + return -ENOBUFS; } -#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ -do {\ - if (table[attr_num]) {\ - cfg.param = nla_fn(table[attr_num]); \ - mask |= (1 << (attr_num - 1)); \ - } \ -} while (0);\ - static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, @@ -2764,6 +2770,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, + [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, @@ -2774,40 +2781,42 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, }; -static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) +static const struct nla_policy + nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { + [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, + [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, + [NL80211_MESH_SETUP_VENDOR_PATH_SEL_IE] = { .type = NLA_BINARY, + .len = IEEE80211_MAX_DATA_LEN }, +}; + +static int nl80211_parse_mesh_config(struct genl_info *info, + struct mesh_config *cfg, + u32 *mask_out) { - int err; - u32 mask; - struct cfg80211_registered_device *rdev; - struct net_device *dev; - struct mesh_config cfg; struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; - struct nlattr *parent_attr; + u32 mask = 0; - parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; - if (!parent_attr) +#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ +do {\ + if (table[attr_num]) {\ + cfg->param = nla_fn(table[attr_num]); \ + mask |= (1 << (attr_num - 1)); \ + } \ +} while (0);\ + + + if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) return -EINVAL; if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, - parent_attr, nl80211_meshconf_params_policy)) + info->attrs[NL80211_ATTR_MESH_CONFIG], + nl80211_meshconf_params_policy)) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (!rdev->ops->set_mesh_params) { - err = -EOPNOTSUPP; - goto out; - } - /* This makes sure that there aren't more than 32 mesh config * parameters (otherwise our bitfield scheme would not work.) */ BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); /* Fill in the params struct */ - mask = 0; FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, @@ -2820,6 +2829,8 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, mask, NL80211_MESHCONF_TTL, nla_get_u8); + FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, + mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8); FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, @@ -2844,21 +2855,82 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) dot11MeshHWMPRootMode, mask, NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8); + if (mask_out) + *mask_out = mask; - /* Apply changes */ - err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); + return 0; - out: - /* cleanup */ - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); +#undef FILL_IN_MESH_PARAM_IF_SET +} - return err; +static int nl80211_parse_mesh_setup(struct genl_info *info, + struct mesh_setup *setup) +{ + struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; + + if (!info->attrs[NL80211_ATTR_MESH_SETUP]) + return -EINVAL; + if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, + info->attrs[NL80211_ATTR_MESH_SETUP], + nl80211_mesh_setup_params_policy)) + return -EINVAL; + + if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) + setup->path_sel_proto = + (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? + IEEE80211_PATH_PROTOCOL_VENDOR : + IEEE80211_PATH_PROTOCOL_HWMP; + + if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) + setup->path_metric = + (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? + IEEE80211_PATH_METRIC_VENDOR : + IEEE80211_PATH_METRIC_AIRTIME; + + if (tb[NL80211_MESH_SETUP_VENDOR_PATH_SEL_IE]) { + struct nlattr *ieattr = + tb[NL80211_MESH_SETUP_VENDOR_PATH_SEL_IE]; + if (!is_valid_ie_attr(ieattr)) + return -EINVAL; + setup->vendor_ie = nla_data(ieattr); + setup->vendor_ie_len = nla_len(ieattr); + } + + return 0; } -#undef FILL_IN_MESH_PARAM_IF_SET +static int nl80211_update_mesh_config(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct mesh_config cfg; + u32 mask; + int err; + + if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + if (!rdev->ops->update_mesh_config) + return -EOPNOTSUPP; + + err = nl80211_parse_mesh_config(info, &cfg, &mask); + if (err) + return err; + + wdev_lock(wdev); + if (!wdev->mesh_id_len) + err = -ENOLINK; + + if (!err) + err = rdev->ops->update_mesh_config(&rdev->wiphy, dev, + mask, &cfg); + + wdev_unlock(wdev); + + return err; +} static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) { @@ -2929,6 +3001,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) nla_put_failure: genlmsg_cancel(msg, hdr); + nlmsg_free(msg); err = -EMSGSIZE; out: mutex_unlock(&cfg80211_mutex); @@ -3037,8 +3110,8 @@ static int validate_scan_freqs(struct nlattr *freqs) static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct cfg80211_scan_request *request; struct cfg80211_ssid *ssid; struct ieee80211_channel *channel; @@ -3051,36 +3124,19 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - wiphy = &rdev->wiphy; - if (!rdev->ops->scan) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->scan) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } - - if (rdev->scan_req) { - err = -EBUSY; - goto out; - } + if (rdev->scan_req) + return -EBUSY; if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { n_channels = validate_scan_freqs( info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); - if (!n_channels) { - err = -EINVAL; - goto out; - } + if (!n_channels) + return -EINVAL; } else { n_channels = 0; @@ -3093,29 +3149,23 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) n_ssids++; - if (n_ssids > wiphy->max_scan_ssids) { - err = -EINVAL; - goto out; - } + if (n_ssids > wiphy->max_scan_ssids) + return -EINVAL; if (info->attrs[NL80211_ATTR_IE]) ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); else ie_len = 0; - if (ie_len > wiphy->max_scan_ie_len) { - err = -EINVAL; - goto out; - } + if (ie_len > wiphy->max_scan_ie_len) + return -EINVAL; request = kzalloc(sizeof(*request) + sizeof(*ssid) * n_ssids + sizeof(channel) * n_channels + ie_len, GFP_KERNEL); - if (!request) { - err = -ENOMEM; - goto out; - } + if (!request) + return -ENOMEM; if (n_ssids) request->ssids = (void *)&request->channels[n_channels]; @@ -3203,18 +3253,11 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) if (!err) { nl80211_send_scan_start(rdev, dev); dev_hold(dev); - } - + } else { out_free: - if (err) { rdev->scan_req = NULL; kfree(request); } - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); return err; } @@ -3273,6 +3316,7 @@ static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, } switch (wdev->iftype) { + case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: if (intbss == wdev->current_bss) NLA_PUT_U32(msg, NL80211_BSS_STATUS, @@ -3310,25 +3354,12 @@ static int nl80211_dump_scan(struct sk_buff *skb, struct net_device *dev; struct cfg80211_internal_bss *scan; struct wireless_dev *wdev; - int ifidx = cb->args[0]; int start = cb->args[1], idx = 0; int err; - if (!ifidx) - ifidx = nl80211_get_ifidx(cb); - if (ifidx < 0) - return ifidx; - cb->args[0] = ifidx; - - dev = dev_get_by_index(sock_net(skb->sk), ifidx); - if (!dev) - return -ENODEV; - - rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); - if (IS_ERR(rdev)) { - err = PTR_ERR(rdev); - goto out_put_netdev; - } + err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); + if (err) + return err; wdev = dev->ieee80211_ptr; @@ -3344,21 +3375,17 @@ static int nl80211_dump_scan(struct sk_buff *skb, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wdev, scan) < 0) { idx--; - goto out; + break; } } - out: spin_unlock_bh(&rdev->bss_lock); wdev_unlock(wdev); cb->args[1] = idx; - err = skb->len; - cfg80211_unlock_rdev(rdev); - out_put_netdev: - dev_put(dev); + nl80211_finish_netdev_dump(rdev); - return err; + return skb->len; } static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, @@ -3388,6 +3415,23 @@ static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, if (survey->filled & SURVEY_INFO_NOISE_DBM) NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise); + if (survey->filled & SURVEY_INFO_IN_USE) + NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); + if (survey->filled & SURVEY_INFO_CHANNEL_TIME) + NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, + survey->channel_time); + if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) + NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, + survey->channel_time_busy); + if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) + NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, + survey->channel_time_ext_busy); + if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) + NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, + survey->channel_time_rx); + if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) + NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, + survey->channel_time_tx); nla_nest_end(msg, infoattr); @@ -3404,29 +3448,12 @@ static int nl80211_dump_survey(struct sk_buff *skb, struct survey_info survey; struct cfg80211_registered_device *dev; struct net_device *netdev; - int ifidx = cb->args[0]; int survey_idx = cb->args[1]; int res; - if (!ifidx) - ifidx = nl80211_get_ifidx(cb); - if (ifidx < 0) - return ifidx; - cb->args[0] = ifidx; - - rtnl_lock(); - - netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); - if (!netdev) { - res = -ENODEV; - goto out_rtnl; - } - - dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); - if (IS_ERR(dev)) { - res = PTR_ERR(dev); - goto out_rtnl; - } + res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); + if (res) + return res; if (!dev->ops->dump_survey) { res = -EOPNOTSUPP; @@ -3454,10 +3481,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, cb->args[1] = survey_idx; res = skb->len; out_err: - cfg80211_unlock_rdev(dev); - out_rtnl: - rtnl_unlock(); - + nl80211_finish_netdev_dump(dev); return res; } @@ -3490,8 +3514,8 @@ static bool nl80211_valid_cipher_suite(u32 cipher) static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct ieee80211_channel *chan; const u8 *bssid, *ssid, *ie = NULL; int err, ssid_len, ie_len = 0; @@ -3519,6 +3543,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) return err; if (key.idx >= 0) { + if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; if (!key.p.key || !key.p.key_len) return -EINVAL; if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || @@ -3533,34 +3559,31 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) key.p.key = NULL; } - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->auth) { - err = -EOPNOTSUPP; - goto out; + if (key.idx >= 0) { + int i; + bool ok = false; + for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { + if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { + ok = true; + break; + } + } + if (!ok) + return -EINVAL; } - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->auth) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); chan = ieee80211_get_channel(&rdev->wiphy, nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); - if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { - err = -EINVAL; - goto out; - } + if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) + return -EINVAL; ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); @@ -3571,27 +3594,19 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) } auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); - if (!nl80211_valid_auth_type(auth_type)) { - err = -EINVAL; - goto out; - } + if (!nl80211_valid_auth_type(auth_type)) + return -EINVAL; local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; - err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, - ssid, ssid_len, ie, ie_len, - key.p.key, key.p.key_len, key.idx, - local_state_change); - -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); - return err; + return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, + ssid, ssid_len, ie, ie_len, + key.p.key, key.p.key_len, key.idx, + local_state_change); } -static int nl80211_crypto_settings(struct genl_info *info, +static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, + struct genl_info *info, struct cfg80211_crypto_settings *settings, int cipher_limit) { @@ -3599,6 +3614,19 @@ static int nl80211_crypto_settings(struct genl_info *info, settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; + if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { + u16 proto; + proto = nla_get_u16( + info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); + settings->control_port_ethertype = cpu_to_be16(proto); + if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && + proto != ETH_P_PAE) + return -EINVAL; + if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) + settings->control_port_no_encrypt = true; + } else + settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); + if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { void *data; int len, i; @@ -3658,8 +3686,8 @@ static int nl80211_crypto_settings(struct genl_info *info, static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct cfg80211_crypto_settings crypto; struct ieee80211_channel *chan; const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; @@ -3674,35 +3702,19 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) !info->attrs[NL80211_ATTR_WIPHY_FREQ]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->assoc) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->assoc) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); chan = ieee80211_get_channel(&rdev->wiphy, nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); - if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { - err = -EINVAL; - goto out; - } + if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) + return -EINVAL; ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); @@ -3717,35 +3729,28 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); if (mfp == NL80211_MFP_REQUIRED) use_mfp = true; - else if (mfp != NL80211_MFP_NO) { - err = -EINVAL; - goto out; - } + else if (mfp != NL80211_MFP_NO) + return -EINVAL; } if (info->attrs[NL80211_ATTR_PREV_BSSID]) prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); - err = nl80211_crypto_settings(info, &crypto, 1); + err = nl80211_crypto_settings(rdev, info, &crypto, 1); if (!err) err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, ssid, ssid_len, ie, ie_len, use_mfp, &crypto); -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); return err; } static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; const u8 *ie = NULL, *bssid; - int err, ie_len = 0; + int ie_len = 0; u16 reason_code; bool local_state_change; @@ -3758,34 +3763,19 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) if (!info->attrs[NL80211_ATTR_REASON_CODE]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->deauth) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->deauth) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); if (reason_code == 0) { /* Reason Code 0 is reserved */ - err = -EINVAL; - goto out; + return -EINVAL; } if (info->attrs[NL80211_ATTR_IE]) { @@ -3795,23 +3785,16 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; - err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, - local_state_change); - -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); - return err; + return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, + local_state_change); } static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; const u8 *ie = NULL, *bssid; - int err, ie_len = 0; + int ie_len = 0; u16 reason_code; bool local_state_change; @@ -3824,34 +3807,19 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) if (!info->attrs[NL80211_ATTR_REASON_CODE]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->disassoc) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->disassoc) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); if (reason_code == 0) { /* Reason Code 0 is reserved */ - err = -EINVAL; - goto out; + return -EINVAL; } if (info->attrs[NL80211_ATTR_IE]) { @@ -3861,21 +3829,42 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; - err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, - local_state_change); + return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, + local_state_change); +} -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); - return err; +static bool +nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, + int mcast_rate[IEEE80211_NUM_BANDS], + int rateval) +{ + struct wiphy *wiphy = &rdev->wiphy; + bool found = false; + int band, i; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + struct ieee80211_supported_band *sband; + + sband = wiphy->bands[band]; + if (!sband) + continue; + + for (i = 0; i < sband->n_bitrates; i++) { + if (sband->bitrates[i].bitrate == rateval) { + mcast_rate[band] = i + 1; + found = true; + break; + } + } + } + + return found; } static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct cfg80211_ibss_params ibss; struct wiphy *wiphy; struct cfg80211_cached_keys *connkeys = NULL; @@ -3900,26 +3889,11 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->join_ibss) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->join_ibss) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) + return -EOPNOTSUPP; wiphy = &rdev->wiphy; @@ -3937,71 +3911,70 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); if (!ibss.channel || ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || - ibss.channel->flags & IEEE80211_CHAN_DISABLED) { - err = -EINVAL; - goto out; - } + ibss.channel->flags & IEEE80211_CHAN_DISABLED) + return -EINVAL; ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; + if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { + u8 *rates = + nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); + int n_rates = + nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); + struct ieee80211_supported_band *sband = + wiphy->bands[ibss.channel->band]; + int i, j; + + if (n_rates == 0) + return -EINVAL; + + for (i = 0; i < n_rates; i++) { + int rate = (rates[i] & 0x7f) * 5; + bool found = false; + + for (j = 0; j < sband->n_bitrates; j++) { + if (sband->bitrates[j].bitrate == rate) { + found = true; + ibss.basic_rates |= BIT(j); + break; + } + } + if (!found) + return -EINVAL; + } + } + + if (info->attrs[NL80211_ATTR_MCAST_RATE] && + !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, + nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) + return -EINVAL; + if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { connkeys = nl80211_parse_connkeys(rdev, info->attrs[NL80211_ATTR_KEYS]); - if (IS_ERR(connkeys)) { - err = PTR_ERR(connkeys); - connkeys = NULL; - goto out; - } + if (IS_ERR(connkeys)) + return PTR_ERR(connkeys); } err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); - -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: if (err) kfree(connkeys); - rtnl_unlock(); return err; } static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; - int err; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->leave_ibss) { - err = -EOPNOTSUPP; - goto out; - } - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (!rdev->ops->leave_ibss) + return -EOPNOTSUPP; - err = cfg80211_leave_ibss(rdev, dev, false); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) + return -EOPNOTSUPP; -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); - return err; + return cfg80211_leave_ibss(rdev, dev, false); } #ifdef CONFIG_NL80211_TESTMODE @@ -4011,20 +3984,12 @@ static struct genl_multicast_group nl80211_testmode_mcgrp = { static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int err; if (!info->attrs[NL80211_ATTR_TESTDATA]) return -EINVAL; - rtnl_lock(); - - rdev = cfg80211_get_dev_from_info(info); - if (IS_ERR(rdev)) { - err = PTR_ERR(rdev); - goto unlock_rtnl; - } - err = -EOPNOTSUPP; if (rdev->ops->testmode_cmd) { rdev->testmode_info = info; @@ -4034,10 +3999,6 @@ static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) rdev->testmode_info = NULL; } - cfg80211_unlock_rdev(rdev); - - unlock_rtnl: - rtnl_unlock(); return err; } @@ -4128,8 +4089,8 @@ EXPORT_SYMBOL(cfg80211_testmode_event); static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct cfg80211_connect_params connect; struct wiphy *wiphy; struct cfg80211_cached_keys *connkeys = NULL; @@ -4154,25 +4115,14 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; - err = nl80211_crypto_settings(info, &connect.crypto, + err = nl80211_crypto_settings(rdev, info, &connect.crypto, NL80211_MAX_NR_CIPHER_SUITES); if (err) return err; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; wiphy = &rdev->wiphy; @@ -4191,39 +4141,27 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) ieee80211_get_channel(wiphy, nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); if (!connect.channel || - connect.channel->flags & IEEE80211_CHAN_DISABLED) { - err = -EINVAL; - goto out; - } + connect.channel->flags & IEEE80211_CHAN_DISABLED) + return -EINVAL; } if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { connkeys = nl80211_parse_connkeys(rdev, info->attrs[NL80211_ATTR_KEYS]); - if (IS_ERR(connkeys)) { - err = PTR_ERR(connkeys); - connkeys = NULL; - goto out; - } + if (IS_ERR(connkeys)) + return PTR_ERR(connkeys); } err = cfg80211_connect(rdev, dev, &connect, connkeys); - -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: if (err) kfree(connkeys); - rtnl_unlock(); return err; } static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; - int err; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u16 reason; if (!info->attrs[NL80211_ATTR_REASON_CODE]) @@ -4234,35 +4172,16 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) if (reason == 0) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } - - err = cfg80211_disconnect(rdev, dev, reason, true); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); - return err; + return cfg80211_disconnect(rdev, dev, reason, true); } static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net *net; int err; u32 pid; @@ -4272,43 +4191,26 @@ static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); - rtnl_lock(); - - rdev = cfg80211_get_dev_from_info(info); - if (IS_ERR(rdev)) { - err = PTR_ERR(rdev); - goto out_rtnl; - } - net = get_net_ns_by_pid(pid); - if (IS_ERR(net)) { - err = PTR_ERR(net); - goto out; - } + if (IS_ERR(net)) + return PTR_ERR(net); err = 0; /* check if anything to do */ - if (net_eq(wiphy_net(&rdev->wiphy), net)) - goto out_put_net; + if (!net_eq(wiphy_net(&rdev->wiphy), net)) + err = cfg80211_switch_netns(rdev, net); - err = cfg80211_switch_netns(rdev, net); - out_put_net: put_net(net); - out: - cfg80211_unlock_rdev(rdev); - out_rtnl: - rtnl_unlock(); return err; } static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_pmksa *pmksa) = NULL; - int err; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct cfg80211_pmksa pmksa; memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); @@ -4319,19 +4221,12 @@ static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) if (!info->attrs[NL80211_ATTR_PMKID]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; switch (info->genlhdr->cmd) { case NL80211_CMD_SET_PMKSA: @@ -4345,61 +4240,32 @@ static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) break; } - if (!rdev_ops) { - err = -EOPNOTSUPP; - goto out; - } - - err = rdev_ops(&rdev->wiphy, dev, &pmksa); - - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (!rdev_ops) + return -EOPNOTSUPP; - return err; + return rdev_ops(&rdev->wiphy, dev, &pmksa); } static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - int err; - struct net_device *dev; - - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto out_rtnl; - - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } - - if (!rdev->ops->flush_pmksa) { - err = -EOPNOTSUPP; - goto out; - } + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; - err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); - - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - out_rtnl: - rtnl_unlock(); + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; - return err; + if (!rdev->ops->flush_pmksa) + return -EOPNOTSUPP; + return rdev->ops->flush_pmksa(&rdev->wiphy, dev); } static int nl80211_remain_on_channel(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct ieee80211_channel *chan; struct sk_buff *msg; void *hdr; @@ -4418,24 +4284,12 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, * We should be on that channel for at least one jiffie, * and more than 5 seconds seems excessive. */ - if (!duration || !msecs_to_jiffies(duration) || duration > 5000) + if (!duration || !msecs_to_jiffies(duration) || + duration > rdev->wiphy.max_remain_on_channel_duration) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->remain_on_channel) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (!rdev->ops->remain_on_channel) + return -EOPNOTSUPP; if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { channel_type = nla_get_u32( @@ -4444,22 +4298,17 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, channel_type != NL80211_CHAN_HT20 && channel_type != NL80211_CHAN_HT40PLUS && channel_type != NL80211_CHAN_HT40MINUS) - err = -EINVAL; - goto out; + return -EINVAL; } freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); chan = rdev_freq_to_chan(rdev, freq, channel_type); - if (chan == NULL) { - err = -EINVAL; - goto out; - } + if (chan == NULL) + return -EINVAL; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } + if (!msg) + return -ENOMEM; hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, NL80211_CMD_REMAIN_ON_CHANNEL); @@ -4478,58 +4327,32 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); genlmsg_end(msg, hdr); - err = genlmsg_reply(msg, info); - goto out; + + return genlmsg_reply(msg, info); nla_put_failure: err = -ENOBUFS; free_msg: nlmsg_free(msg); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); return err; } static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; u64 cookie; - int err; if (!info->attrs[NL80211_ATTR_COOKIE]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->cancel_remain_on_channel) { - err = -EOPNOTSUPP; - goto out; - } - - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; - } + if (!rdev->ops->cancel_remain_on_channel) + return -EOPNOTSUPP; cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); - err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); - - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); - return err; + return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); } static u32 rateset_to_mask(struct ieee80211_supported_band *sband, @@ -4565,26 +4388,18 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, struct genl_info *info) { struct nlattr *tb[NL80211_TXRATE_MAX + 1]; - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct cfg80211_bitrate_mask mask; - int err, rem, i; - struct net_device *dev; + int rem, i; + struct net_device *dev = info->user_ptr[1]; struct nlattr *tx_rates; struct ieee80211_supported_band *sband; if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->set_bitrate_mask) { - err = -EOPNOTSUPP; - goto unlock; - } + if (!rdev->ops->set_bitrate_mask) + return -EOPNOTSUPP; memset(&mask, 0, sizeof(mask)); /* Default to all rates enabled */ @@ -4601,15 +4416,11 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { enum ieee80211_band band = nla_type(tx_rates); - if (band < 0 || band >= IEEE80211_NUM_BANDS) { - err = -EINVAL; - goto unlock; - } + if (band < 0 || band >= IEEE80211_NUM_BANDS) + return -EINVAL; sband = rdev->wiphy.bands[band]; - if (sband == NULL) { - err = -EINVAL; - goto unlock; - } + if (sband == NULL) + return -EINVAL; nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), nla_len(tx_rates), nl80211_txattr_policy); if (tb[NL80211_TXRATE_LEGACY]) { @@ -4617,98 +4428,80 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, sband, nla_data(tb[NL80211_TXRATE_LEGACY]), nla_len(tb[NL80211_TXRATE_LEGACY])); - if (mask.control[band].legacy == 0) { - err = -EINVAL; - goto unlock; - } + if (mask.control[band].legacy == 0) + return -EINVAL; } } - err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); - - unlock: - dev_put(dev); - cfg80211_unlock_rdev(rdev); - unlock_rtnl: - rtnl_unlock(); - return err; + return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); } -static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info) +static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; - int err; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) return -EINVAL; - if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1) - return -EINVAL; - - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; + if (info->attrs[NL80211_ATTR_FRAME_TYPE]) + frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; /* not much point in registering if we can't reply */ - if (!rdev->ops->action) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->mgmt_tx) + return -EOPNOTSUPP; - err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid, + return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, + frame_type, nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - unlock_rtnl: - rtnl_unlock(); - return err; } -static int nl80211_action(struct sk_buff *skb, struct genl_info *info) +static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; - struct net_device *dev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; struct ieee80211_channel *chan; enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; + bool channel_type_valid = false; u32 freq; int err; void *hdr; u64 cookie; struct sk_buff *msg; + unsigned int wait = 0; + bool offchan; if (!info->attrs[NL80211_ATTR_FRAME] || !info->attrs[NL80211_ATTR_WIPHY_FREQ]) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - - if (!rdev->ops->action) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->mgmt_tx) + return -EOPNOTSUPP; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto out; - } + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; - if (!netif_running(dev)) { - err = -ENETDOWN; - goto out; + if (info->attrs[NL80211_ATTR_DURATION]) { + if (!rdev->ops->mgmt_tx_cancel_wait) + return -EINVAL; + wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); } if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { @@ -4718,143 +4511,130 @@ static int nl80211_action(struct sk_buff *skb, struct genl_info *info) channel_type != NL80211_CHAN_HT20 && channel_type != NL80211_CHAN_HT40PLUS && channel_type != NL80211_CHAN_HT40MINUS) - err = -EINVAL; - goto out; + return -EINVAL; + channel_type_valid = true; } + offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; + freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); chan = rdev_freq_to_chan(rdev, freq, channel_type); - if (chan == NULL) { - err = -EINVAL; - goto out; - } + if (chan == NULL) + return -EINVAL; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } + if (!msg) + return -ENOMEM; hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, - NL80211_CMD_ACTION); + NL80211_CMD_FRAME); if (IS_ERR(hdr)) { err = PTR_ERR(hdr); goto free_msg; } - err = cfg80211_mlme_action(rdev, dev, chan, channel_type, - nla_data(info->attrs[NL80211_ATTR_FRAME]), - nla_len(info->attrs[NL80211_ATTR_FRAME]), - &cookie); + err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type, + channel_type_valid, wait, + nla_data(info->attrs[NL80211_ATTR_FRAME]), + nla_len(info->attrs[NL80211_ATTR_FRAME]), + &cookie); if (err) goto free_msg; NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); genlmsg_end(msg, hdr); - err = genlmsg_reply(msg, info); - goto out; + return genlmsg_reply(msg, info); nla_put_failure: err = -ENOBUFS; free_msg: nlmsg_free(msg); - out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); -unlock_rtnl: - rtnl_unlock(); return err; } +static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + u64 cookie; + + if (!info->attrs[NL80211_ATTR_COOKIE]) + return -EINVAL; + + if (!rdev->ops->mgmt_tx_cancel_wait) + return -EOPNOTSUPP; + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + return -EOPNOTSUPP; + + cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); + + return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie); +} + static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct wireless_dev *wdev; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; u8 ps_state; bool state; int err; - if (!info->attrs[NL80211_ATTR_PS_STATE]) { - err = -EINVAL; - goto out; - } + if (!info->attrs[NL80211_ATTR_PS_STATE]) + return -EINVAL; ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); - if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) { - err = -EINVAL; - goto out; - } - - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rdev; + if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) + return -EINVAL; wdev = dev->ieee80211_ptr; - if (!rdev->ops->set_power_mgmt) { - err = -EOPNOTSUPP; - goto unlock_rdev; - } + if (!rdev->ops->set_power_mgmt) + return -EOPNOTSUPP; state = (ps_state == NL80211_PS_ENABLED) ? true : false; if (state == wdev->ps) - goto unlock_rdev; - - wdev->ps = state; - - if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps, - wdev->ps_timeout)) - /* assume this means it's off */ - wdev->ps = false; - -unlock_rdev: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - rtnl_unlock(); + return 0; -out: + err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, + wdev->ps_timeout); + if (!err) + wdev->ps = state; return err; } static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; enum nl80211_ps_state ps_state; struct wireless_dev *wdev; - struct net_device *dev; + struct net_device *dev = info->user_ptr[1]; struct sk_buff *msg; void *hdr; int err; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rtnl; - wdev = dev->ieee80211_ptr; - if (!rdev->ops->set_power_mgmt) { - err = -EOPNOTSUPP; - goto out; - } + if (!rdev->ops->set_power_mgmt) + return -EOPNOTSUPP; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } + if (!msg) + return -ENOMEM; hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, NL80211_CMD_GET_POWER_SAVE); if (!hdr) { - err = -ENOMEM; + err = -ENOBUFS; goto free_msg; } @@ -4866,22 +4646,12 @@ static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); genlmsg_end(msg, hdr); - err = genlmsg_reply(msg, info); - goto out; + return genlmsg_reply(msg, info); -nla_put_failure: + nla_put_failure: err = -ENOBUFS; - -free_msg: + free_msg: nlmsg_free(msg); - -out: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - -unlock_rtnl: - rtnl_unlock(); - return err; } @@ -4895,41 +4665,24 @@ nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { static int nl80211_set_cqm_rssi(struct genl_info *info, s32 threshold, u32 hysteresis) { - struct cfg80211_registered_device *rdev; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct wireless_dev *wdev; - struct net_device *dev; - int err; + struct net_device *dev = info->user_ptr[1]; if (threshold > 0) return -EINVAL; - rtnl_lock(); - - err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); - if (err) - goto unlock_rdev; - wdev = dev->ieee80211_ptr; - if (!rdev->ops->set_cqm_rssi_config) { - err = -EOPNOTSUPP; - goto unlock_rdev; - } - - if (wdev->iftype != NL80211_IFTYPE_STATION) { - err = -EOPNOTSUPP; - goto unlock_rdev; - } - - err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, - threshold, hysteresis); + if (!rdev->ops->set_cqm_rssi_config) + return -EOPNOTSUPP; -unlock_rdev: - cfg80211_unlock_rdev(rdev); - dev_put(dev); - rtnl_unlock(); + if (wdev->iftype != NL80211_IFTYPE_STATION && + wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) + return -EOPNOTSUPP; - return err; + return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, + threshold, hysteresis); } static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) @@ -4963,6 +4716,109 @@ out: return err; } +static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct mesh_config cfg; + struct mesh_setup setup; + int err; + + /* start with default */ + memcpy(&cfg, &default_mesh_config, sizeof(cfg)); + memcpy(&setup, &default_mesh_setup, sizeof(setup)); + + if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { + /* and parse parameters if given */ + err = nl80211_parse_mesh_config(info, &cfg, NULL); + if (err) + return err; + } + + if (!info->attrs[NL80211_ATTR_MESH_ID] || + !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) + return -EINVAL; + + setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); + setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); + + if (info->attrs[NL80211_ATTR_MESH_SETUP]) { + /* parse additional setup parameters if given */ + err = nl80211_parse_mesh_setup(info, &setup); + if (err) + return err; + } + + return cfg80211_join_mesh(rdev, dev, &setup, &cfg); +} + +static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + + return cfg80211_leave_mesh(rdev, dev); +} + +#define NL80211_FLAG_NEED_WIPHY 0x01 +#define NL80211_FLAG_NEED_NETDEV 0x02 +#define NL80211_FLAG_NEED_RTNL 0x04 +#define NL80211_FLAG_CHECK_NETDEV_UP 0x08 +#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ + NL80211_FLAG_CHECK_NETDEV_UP) + +static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev; + struct net_device *dev; + int err; + bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; + + if (rtnl) + rtnl_lock(); + + if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { + rdev = cfg80211_get_dev_from_info(info); + if (IS_ERR(rdev)) { + if (rtnl) + rtnl_unlock(); + return PTR_ERR(rdev); + } + info->user_ptr[0] = rdev; + } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { + err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); + if (err) { + if (rtnl) + rtnl_unlock(); + return err; + } + if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && + !netif_running(dev)) { + cfg80211_unlock_rdev(rdev); + dev_put(dev); + if (rtnl) + rtnl_unlock(); + return -ENETDOWN; + } + info->user_ptr[0] = rdev; + info->user_ptr[1] = dev; + } + + return 0; +} + +static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, + struct genl_info *info) +{ + if (info->user_ptr[0]) + cfg80211_unlock_rdev(info->user_ptr[0]); + if (info->user_ptr[1]) + dev_put(info->user_ptr[1]); + if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) + rtnl_unlock(); +} + static struct genl_ops nl80211_ops[] = { { .cmd = NL80211_CMD_GET_WIPHY, @@ -4970,12 +4826,14 @@ static struct genl_ops nl80211_ops[] = { .dumpit = nl80211_dump_wiphy, .policy = nl80211_policy, /* can be retrieved by unprivileged users */ + .internal_flags = NL80211_FLAG_NEED_WIPHY, }, { .cmd = NL80211_CMD_SET_WIPHY, .doit = nl80211_set_wiphy, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_INTERFACE, @@ -4983,90 +4841,119 @@ static struct genl_ops nl80211_ops[] = { .dumpit = nl80211_dump_interface, .policy = nl80211_policy, /* can be retrieved by unprivileged users */ + .internal_flags = NL80211_FLAG_NEED_NETDEV, }, { .cmd = NL80211_CMD_SET_INTERFACE, .doit = nl80211_set_interface, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_NEW_INTERFACE, .doit = nl80211_new_interface, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WIPHY | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_INTERFACE, .doit = nl80211_del_interface, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_KEY, .doit = nl80211_get_key, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_KEY, .doit = nl80211_set_key, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_NEW_KEY, .doit = nl80211_new_key, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_KEY, .doit = nl80211_del_key, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_BEACON, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_addset_beacon, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_NEW_BEACON, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_addset_beacon, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_BEACON, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, .doit = nl80211_del_beacon, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_STATION, .doit = nl80211_get_station, .dumpit = nl80211_dump_station, .policy = nl80211_policy, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_STATION, .doit = nl80211_set_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_NEW_STATION, .doit = nl80211_new_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_STATION, .doit = nl80211_del_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_MPATH, @@ -5074,30 +4961,40 @@ static struct genl_ops nl80211_ops[] = { .dumpit = nl80211_dump_mpath, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_MPATH, .doit = nl80211_set_mpath, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_NEW_MPATH, .doit = nl80211_new_mpath, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_MPATH, .doit = nl80211_del_mpath, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_BSS, .doit = nl80211_set_bss, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_REG, @@ -5118,22 +5015,28 @@ static struct genl_ops nl80211_ops[] = { .flags = GENL_ADMIN_PERM, }, { - .cmd = NL80211_CMD_GET_MESH_PARAMS, - .doit = nl80211_get_mesh_params, + .cmd = NL80211_CMD_GET_MESH_CONFIG, + .doit = nl80211_get_mesh_config, .policy = nl80211_policy, /* can be retrieved by unprivileged users */ + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { - .cmd = NL80211_CMD_SET_MESH_PARAMS, - .doit = nl80211_set_mesh_params, + .cmd = NL80211_CMD_SET_MESH_CONFIG, + .doit = nl80211_update_mesh_config, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_TRIGGER_SCAN, .doit = nl80211_trigger_scan, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_SCAN, @@ -5145,36 +5048,48 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_authenticate, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_ASSOCIATE, .doit = nl80211_associate, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEAUTHENTICATE, .doit = nl80211_deauthenticate, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DISASSOCIATE, .doit = nl80211_disassociate, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_JOIN_IBSS, .doit = nl80211_join_ibss, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_LEAVE_IBSS, .doit = nl80211_leave_ibss, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, #ifdef CONFIG_NL80211_TESTMODE { @@ -5182,6 +5097,8 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_testmode_do, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WIPHY | + NL80211_FLAG_NEED_RTNL, }, #endif { @@ -5189,18 +5106,24 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_connect, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DISCONNECT, .doit = nl80211_disconnect, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_WIPHY_NETNS, .doit = nl80211_wiphy_netns, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WIPHY | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_SURVEY, @@ -5212,72 +5135,128 @@ static struct genl_ops nl80211_ops[] = { .doit = nl80211_setdel_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_DEL_PMKSA, .doit = nl80211_setdel_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_FLUSH_PMKSA, .doit = nl80211_flush_pmksa, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, .doit = nl80211_remain_on_channel, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, .doit = nl80211_cancel_remain_on_channel, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, .doit = nl80211_set_tx_bitrate_mask, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_REGISTER_FRAME, + .doit = nl80211_register_mgmt, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { - .cmd = NL80211_CMD_REGISTER_ACTION, - .doit = nl80211_register_action, + .cmd = NL80211_CMD_FRAME, + .doit = nl80211_tx_mgmt, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { - .cmd = NL80211_CMD_ACTION, - .doit = nl80211_action, + .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, + .doit = nl80211_tx_mgmt_cancel_wait, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_POWER_SAVE, .doit = nl80211_set_power_save, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_GET_POWER_SAVE, .doit = nl80211_get_power_save, .policy = nl80211_policy, /* can be retrieved by unprivileged users */ + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_CQM, .doit = nl80211_set_cqm, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, }, { .cmd = NL80211_CMD_SET_CHANNEL, .doit = nl80211_set_channel, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_SET_WDS_PEER, + .doit = nl80211_set_wds_peer, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_JOIN_MESH, + .doit = nl80211_join_mesh, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_LEAVE_MESH, + .doit = nl80211_leave_mesh, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, }, }; @@ -5557,6 +5536,22 @@ void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, NL80211_CMD_DISASSOCIATE, gfp); } +void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *buf, + size_t len, gfp_t gfp) +{ + nl80211_send_mlme_event(rdev, netdev, buf, len, + NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); +} + +void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *buf, + size_t len, gfp_t gfp) +{ + nl80211_send_mlme_event(rdev, netdev, buf, len, + NL80211_CMD_UNPROT_DISASSOCIATE, gfp); +} + static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, struct net_device *netdev, int cmd, const u8 *addr, gfp_t gfp) @@ -5951,9 +5946,9 @@ void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, nl80211_mlme_mcgrp.id, gfp); } -int nl80211_send_action(struct cfg80211_registered_device *rdev, - struct net_device *netdev, u32 nlpid, - int freq, const u8 *buf, size_t len, gfp_t gfp) +int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u32 nlpid, + int freq, const u8 *buf, size_t len, gfp_t gfp) { struct sk_buff *msg; void *hdr; @@ -5963,7 +5958,7 @@ int nl80211_send_action(struct cfg80211_registered_device *rdev, if (!msg) return -ENOMEM; - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION); + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); if (!hdr) { nlmsg_free(msg); return -ENOMEM; @@ -5991,10 +5986,10 @@ int nl80211_send_action(struct cfg80211_registered_device *rdev, return -ENOBUFS; } -void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev, - struct net_device *netdev, u64 cookie, - const u8 *buf, size_t len, bool ack, - gfp_t gfp) +void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u64 cookie, + const u8 *buf, size_t len, bool ack, + gfp_t gfp) { struct sk_buff *msg; void *hdr; @@ -6003,7 +5998,7 @@ void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev, if (!msg) return; - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS); + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); if (!hdr) { nlmsg_free(msg); return; @@ -6075,6 +6070,51 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, nlmsg_free(msg); } +void +nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *peer, + u32 num_packets, gfp_t gfp) +{ + struct sk_buff *msg; + struct nlattr *pinfoattr; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); + if (!hdr) { + nlmsg_free(msg); + return; + } + + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); + NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); + + pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); + if (!pinfoattr) + goto nla_put_failure; + + NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets); + + nla_nest_end(msg, pinfoattr); + + if (genlmsg_end(msg, hdr) < 0) { + nlmsg_free(msg); + return; + } + + genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, + nl80211_mlme_mcgrp.id, gfp); + return; + + nla_put_failure: + genlmsg_cancel(msg, hdr); + nlmsg_free(msg); +} + static int nl80211_netlink_notify(struct notifier_block * nb, unsigned long state, void *_notify) @@ -6090,7 +6130,7 @@ static int nl80211_netlink_notify(struct notifier_block * nb, list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) - cfg80211_mlme_unregister_actions(wdev, notify->pid); + cfg80211_mlme_unregister_socket(wdev, notify->pid); rcu_read_unlock(); diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index 2ad7fbc7d9f1..e3f7fa886966 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -25,6 +25,12 @@ void nl80211_send_deauth(struct cfg80211_registered_device *rdev, void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *buf, size_t len, gfp_t gfp); +void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, + struct net_device *netdev, + const u8 *buf, size_t len, gfp_t gfp); +void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, + struct net_device *netdev, + const u8 *buf, size_t len, gfp_t gfp); void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *addr, gfp_t gfp); @@ -74,18 +80,22 @@ void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, struct net_device *dev, const u8 *mac_addr, struct station_info *sinfo, gfp_t gfp); -int nl80211_send_action(struct cfg80211_registered_device *rdev, - struct net_device *netdev, u32 nlpid, int freq, - const u8 *buf, size_t len, gfp_t gfp); -void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev, - struct net_device *netdev, u64 cookie, - const u8 *buf, size_t len, bool ack, - gfp_t gfp); +int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u32 nlpid, int freq, + const u8 *buf, size_t len, gfp_t gfp); +void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u64 cookie, + const u8 *buf, size_t len, bool ack, + gfp_t gfp); void nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, struct net_device *netdev, enum nl80211_cqm_rssi_threshold_event rssi_event, gfp_t gfp); +void +nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *peer, + u32 num_packets, gfp_t gfp); #endif /* __NET_WIRELESS_NL80211_H */ diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c index 1332c445d1c7..dbe35e138e94 100644 --- a/net/wireless/radiotap.c +++ b/net/wireless/radiotap.c @@ -14,6 +14,7 @@ * See COPYING for more details. */ +#include <linux/kernel.h> #include <net/cfg80211.h> #include <net/ieee80211_radiotap.h> #include <asm/unaligned.h> @@ -45,7 +46,7 @@ static const struct radiotap_align_size rtap_namespace_sizes[] = { }; static const struct ieee80211_radiotap_namespace radiotap_ns = { - .n_bits = sizeof(rtap_namespace_sizes) / sizeof(rtap_namespace_sizes[0]), + .n_bits = ARRAY_SIZE(rtap_namespace_sizes), .align_size = rtap_namespace_sizes, }; @@ -200,7 +201,7 @@ int ieee80211_radiotap_iterator_next( { while (1) { int hit = 0; - int pad, align, size, subns, vnslen; + int pad, align, size, subns; uint32_t oui; /* if no more EXT bits, that's it */ @@ -260,6 +261,27 @@ int ieee80211_radiotap_iterator_next( if (pad) iterator->_arg += align - pad; + if (iterator->_arg_index % 32 == IEEE80211_RADIOTAP_VENDOR_NAMESPACE) { + int vnslen; + + if ((unsigned long)iterator->_arg + size - + (unsigned long)iterator->_rtheader > + (unsigned long)iterator->_max_length) + return -EINVAL; + + oui = (*iterator->_arg << 16) | + (*(iterator->_arg + 1) << 8) | + *(iterator->_arg + 2); + subns = *(iterator->_arg + 3); + + find_ns(iterator, oui, subns); + + vnslen = get_unaligned_le16(iterator->_arg + 4); + iterator->_next_ns_data = iterator->_arg + size + vnslen; + if (!iterator->current_namespace) + size += vnslen; + } + /* * this is what we will return to user, but we need to * move on first so next call has something fresh to test @@ -286,40 +308,25 @@ int ieee80211_radiotap_iterator_next( /* these special ones are valid in each bitmap word */ switch (iterator->_arg_index % 32) { case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: - iterator->_bitmap_shifter >>= 1; - iterator->_arg_index++; - iterator->_reset_on_ext = 1; - vnslen = get_unaligned_le16(iterator->this_arg + 4); - iterator->_next_ns_data = iterator->_arg + vnslen; - oui = (*iterator->this_arg << 16) | - (*(iterator->this_arg + 1) << 8) | - *(iterator->this_arg + 2); - subns = *(iterator->this_arg + 3); - - find_ns(iterator, oui, subns); - iterator->is_radiotap_ns = 0; - /* allow parsers to show this information */ + /* + * If parser didn't register this vendor + * namespace with us, allow it to show it + * as 'raw. Do do that, set argument index + * to vendor namespace. + */ iterator->this_arg_index = IEEE80211_RADIOTAP_VENDOR_NAMESPACE; - iterator->this_arg_size += vnslen; - if ((unsigned long)iterator->this_arg + - iterator->this_arg_size - - (unsigned long)iterator->_rtheader > - (unsigned long)(unsigned long)iterator->_max_length) - return -EINVAL; - hit = 1; - break; + if (!iterator->current_namespace) + hit = 1; + goto next_entry; case IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE: - iterator->_bitmap_shifter >>= 1; - iterator->_arg_index++; - iterator->_reset_on_ext = 1; iterator->current_namespace = &radiotap_ns; iterator->is_radiotap_ns = 1; - break; + goto next_entry; case IEEE80211_RADIOTAP_EXT: /* * bit 31 was set, there is more diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 8f0d97dd3109..37693b6ef23a 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -32,10 +32,14 @@ * rely on some SHA1 checksum of the regdomain for example. * */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/slab.h> #include <linux/list.h> #include <linux/random.h> +#include <linux/ctype.h> #include <linux/nl80211.h> #include <linux/platform_device.h> #include <net/cfg80211.h> @@ -47,7 +51,7 @@ #ifdef CONFIG_CFG80211_REG_DEBUG #define REG_DBG_PRINT(format, args...) \ do { \ - printk(KERN_DEBUG format , ## args); \ + printk(KERN_DEBUG pr_fmt(format), ##args); \ } while (0) #else #define REG_DBG_PRINT(args...) @@ -67,21 +71,17 @@ static struct platform_device *reg_pdev; const struct ieee80211_regdomain *cfg80211_regdomain; /* - * We use this as a place for the rd structure built from the - * last parsed country IE to rest until CRDA gets back to us with - * what it thinks should apply for the same country - */ -static const struct ieee80211_regdomain *country_ie_regdomain; - -/* * Protects static reg.c components: * - cfg80211_world_regdom * - cfg80211_regdom - * - country_ie_regdomain * - last_request */ -DEFINE_MUTEX(reg_mutex); -#define assert_reg_lock() WARN_ON(!mutex_is_locked(®_mutex)) +static DEFINE_MUTEX(reg_mutex); + +static inline void assert_reg_lock(void) +{ + lockdep_assert_held(®_mutex); +} /* Used to queue up regulatory hints */ static LIST_HEAD(reg_requests_list); @@ -99,6 +99,9 @@ struct reg_beacon { struct ieee80211_channel chan; }; +static void reg_todo(struct work_struct *work); +static DECLARE_WORK(reg_work, reg_todo); + /* We keep a static world regulatory domain in case of the absence of CRDA */ static const struct ieee80211_regdomain world_regdom = { .n_reg_rules = 5, @@ -189,14 +192,6 @@ static bool is_alpha2_set(const char *alpha2) return false; } -static bool is_alpha_upper(char letter) -{ - /* ASCII A - Z */ - if (letter >= 65 && letter <= 90) - return true; - return false; -} - static bool is_unknown_alpha2(const char *alpha2) { if (!alpha2) @@ -228,7 +223,7 @@ static bool is_an_alpha2(const char *alpha2) { if (!alpha2) return false; - if (is_alpha_upper(alpha2[0]) && is_alpha_upper(alpha2[1])) + if (isalpha(alpha2[0]) && isalpha(alpha2[1])) return true; return false; } @@ -275,25 +270,6 @@ static bool is_user_regdom_saved(void) return true; } -/** - * country_ie_integrity_changes - tells us if the country IE has changed - * @checksum: checksum of country IE of fields we are interested in - * - * If the country IE has not changed you can ignore it safely. This is - * useful to determine if two devices are seeing two different country IEs - * even on the same alpha2. Note that this will return false if no IE has - * been set on the wireless core yet. - */ -static bool country_ie_integrity_changes(u32 checksum) -{ - /* If no IE has been set then the checksum doesn't change */ - if (unlikely(!last_request->country_ie_checksum)) - return false; - if (unlikely(last_request->country_ie_checksum != checksum)) - return true; - return false; -} - static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd, const struct ieee80211_regdomain *src_regd) { @@ -397,11 +373,10 @@ static int call_crda(const char *alpha2) }; if (!is_world_regdom((char *) alpha2)) - printk(KERN_INFO "cfg80211: Calling CRDA for country: %c%c\n", + pr_info("Calling CRDA for country: %c%c\n", alpha2[0], alpha2[1]); else - printk(KERN_INFO "cfg80211: Calling CRDA to update world " - "regulatory domain\n"); + pr_info("Calling CRDA to update world regulatory domain\n"); /* query internal regulatory database (if it exists) */ reg_regdb_query(alpha2); @@ -506,471 +481,6 @@ static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range, } /* - * This is a work around for sanity checking ieee80211_channel_to_frequency()'s - * work. ieee80211_channel_to_frequency() can for example currently provide a - * 2 GHz channel when in fact a 5 GHz channel was desired. An example would be - * an AP providing channel 8 on a country IE triplet when it sent this on the - * 5 GHz band, that channel is designed to be channel 8 on 5 GHz, not a 2 GHz - * channel. - * - * This can be removed once ieee80211_channel_to_frequency() takes in a band. - */ -static bool chan_in_band(int chan, enum ieee80211_band band) -{ - int center_freq = ieee80211_channel_to_frequency(chan); - - switch (band) { - case IEEE80211_BAND_2GHZ: - if (center_freq <= 2484) - return true; - return false; - case IEEE80211_BAND_5GHZ: - if (center_freq >= 5005) - return true; - return false; - default: - return false; - } -} - -/* - * Some APs may send a country IE triplet for each channel they - * support and while this is completely overkill and silly we still - * need to support it. We avoid making a single rule for each channel - * though and to help us with this we use this helper to find the - * actual subband end channel. These type of country IE triplet - * scenerios are handled then, all yielding two regulaotry rules from - * parsing a country IE: - * - * [1] - * [2] - * [36] - * [40] - * - * [1] - * [2-4] - * [5-12] - * [36] - * [40-44] - * - * [1-4] - * [5-7] - * [36-44] - * [48-64] - * - * [36-36] - * [40-40] - * [44-44] - * [48-48] - * [52-52] - * [56-56] - * [60-60] - * [64-64] - * [100-100] - * [104-104] - * [108-108] - * [112-112] - * [116-116] - * [120-120] - * [124-124] - * [128-128] - * [132-132] - * [136-136] - * [140-140] - * - * Returns 0 if the IE has been found to be invalid in the middle - * somewhere. - */ -static int max_subband_chan(enum ieee80211_band band, - int orig_cur_chan, - int orig_end_channel, - s8 orig_max_power, - u8 **country_ie, - u8 *country_ie_len) -{ - u8 *triplets_start = *country_ie; - u8 len_at_triplet = *country_ie_len; - int end_subband_chan = orig_end_channel; - - /* - * We'll deal with padding for the caller unless - * its not immediate and we don't process any channels - */ - if (*country_ie_len == 1) { - *country_ie += 1; - *country_ie_len -= 1; - return orig_end_channel; - } - - /* Move to the next triplet and then start search */ - *country_ie += 3; - *country_ie_len -= 3; - - if (!chan_in_band(orig_cur_chan, band)) - return 0; - - while (*country_ie_len >= 3) { - int end_channel = 0; - struct ieee80211_country_ie_triplet *triplet = - (struct ieee80211_country_ie_triplet *) *country_ie; - int cur_channel = 0, next_expected_chan; - - /* means last triplet is completely unrelated to this one */ - if (triplet->ext.reg_extension_id >= - IEEE80211_COUNTRY_EXTENSION_ID) { - *country_ie -= 3; - *country_ie_len += 3; - break; - } - - if (triplet->chans.first_channel == 0) { - *country_ie += 1; - *country_ie_len -= 1; - if (*country_ie_len != 0) - return 0; - break; - } - - if (triplet->chans.num_channels == 0) - return 0; - - /* Monitonically increasing channel order */ - if (triplet->chans.first_channel <= end_subband_chan) - return 0; - - if (!chan_in_band(triplet->chans.first_channel, band)) - return 0; - - /* 2 GHz */ - if (triplet->chans.first_channel <= 14) { - end_channel = triplet->chans.first_channel + - triplet->chans.num_channels - 1; - } - else { - end_channel = triplet->chans.first_channel + - (4 * (triplet->chans.num_channels - 1)); - } - - if (!chan_in_band(end_channel, band)) - return 0; - - if (orig_max_power != triplet->chans.max_power) { - *country_ie -= 3; - *country_ie_len += 3; - break; - } - - cur_channel = triplet->chans.first_channel; - - /* The key is finding the right next expected channel */ - if (band == IEEE80211_BAND_2GHZ) - next_expected_chan = end_subband_chan + 1; - else - next_expected_chan = end_subband_chan + 4; - - if (cur_channel != next_expected_chan) { - *country_ie -= 3; - *country_ie_len += 3; - break; - } - - end_subband_chan = end_channel; - - /* Move to the next one */ - *country_ie += 3; - *country_ie_len -= 3; - - /* - * Padding needs to be dealt with if we processed - * some channels. - */ - if (*country_ie_len == 1) { - *country_ie += 1; - *country_ie_len -= 1; - break; - } - - /* If seen, the IE is invalid */ - if (*country_ie_len == 2) - return 0; - } - - if (end_subband_chan == orig_end_channel) { - *country_ie = triplets_start; - *country_ie_len = len_at_triplet; - return orig_end_channel; - } - - return end_subband_chan; -} - -/* - * Converts a country IE to a regulatory domain. A regulatory domain - * structure has a lot of information which the IE doesn't yet have, - * so for the other values we use upper max values as we will intersect - * with our userspace regulatory agent to get lower bounds. - */ -static struct ieee80211_regdomain *country_ie_2_rd( - enum ieee80211_band band, - u8 *country_ie, - u8 country_ie_len, - u32 *checksum) -{ - struct ieee80211_regdomain *rd = NULL; - unsigned int i = 0; - char alpha2[2]; - u32 flags = 0; - u32 num_rules = 0, size_of_regd = 0; - u8 *triplets_start = NULL; - u8 len_at_triplet = 0; - /* the last channel we have registered in a subband (triplet) */ - int last_sub_max_channel = 0; - - *checksum = 0xDEADBEEF; - - /* Country IE requirements */ - BUG_ON(country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN || - country_ie_len & 0x01); - - alpha2[0] = country_ie[0]; - alpha2[1] = country_ie[1]; - - /* - * Third octet can be: - * 'I' - Indoor - * 'O' - Outdoor - * - * anything else we assume is no restrictions - */ - if (country_ie[2] == 'I') - flags = NL80211_RRF_NO_OUTDOOR; - else if (country_ie[2] == 'O') - flags = NL80211_RRF_NO_INDOOR; - - country_ie += 3; - country_ie_len -= 3; - - triplets_start = country_ie; - len_at_triplet = country_ie_len; - - *checksum ^= ((flags ^ alpha2[0] ^ alpha2[1]) << 8); - - /* - * We need to build a reg rule for each triplet, but first we must - * calculate the number of reg rules we will need. We will need one - * for each channel subband - */ - while (country_ie_len >= 3) { - int end_channel = 0; - struct ieee80211_country_ie_triplet *triplet = - (struct ieee80211_country_ie_triplet *) country_ie; - int cur_sub_max_channel = 0, cur_channel = 0; - - if (triplet->ext.reg_extension_id >= - IEEE80211_COUNTRY_EXTENSION_ID) { - country_ie += 3; - country_ie_len -= 3; - continue; - } - - /* - * APs can add padding to make length divisible - * by two, required by the spec. - */ - if (triplet->chans.first_channel == 0) { - country_ie++; - country_ie_len--; - /* This is expected to be at the very end only */ - if (country_ie_len != 0) - return NULL; - break; - } - - if (triplet->chans.num_channels == 0) - return NULL; - - if (!chan_in_band(triplet->chans.first_channel, band)) - return NULL; - - /* 2 GHz */ - if (band == IEEE80211_BAND_2GHZ) - end_channel = triplet->chans.first_channel + - triplet->chans.num_channels - 1; - else - /* - * 5 GHz -- For example in country IEs if the first - * channel given is 36 and the number of channels is 4 - * then the individual channel numbers defined for the - * 5 GHz PHY by these parameters are: 36, 40, 44, and 48 - * and not 36, 37, 38, 39. - * - * See: http://tinyurl.com/11d-clarification - */ - end_channel = triplet->chans.first_channel + - (4 * (triplet->chans.num_channels - 1)); - - cur_channel = triplet->chans.first_channel; - - /* - * Enhancement for APs that send a triplet for every channel - * or for whatever reason sends triplets with multiple channels - * separated when in fact they should be together. - */ - end_channel = max_subband_chan(band, - cur_channel, - end_channel, - triplet->chans.max_power, - &country_ie, - &country_ie_len); - if (!end_channel) - return NULL; - - if (!chan_in_band(end_channel, band)) - return NULL; - - cur_sub_max_channel = end_channel; - - /* Basic sanity check */ - if (cur_sub_max_channel < cur_channel) - return NULL; - - /* - * Do not allow overlapping channels. Also channels - * passed in each subband must be monotonically - * increasing - */ - if (last_sub_max_channel) { - if (cur_channel <= last_sub_max_channel) - return NULL; - if (cur_sub_max_channel <= last_sub_max_channel) - return NULL; - } - - /* - * When dot11RegulatoryClassesRequired is supported - * we can throw ext triplets as part of this soup, - * for now we don't care when those change as we - * don't support them - */ - *checksum ^= ((cur_channel ^ cur_sub_max_channel) << 8) | - ((cur_sub_max_channel ^ cur_sub_max_channel) << 16) | - ((triplet->chans.max_power ^ cur_sub_max_channel) << 24); - - last_sub_max_channel = cur_sub_max_channel; - - num_rules++; - - if (country_ie_len >= 3) { - country_ie += 3; - country_ie_len -= 3; - } - - /* - * Note: this is not a IEEE requirement but - * simply a memory requirement - */ - if (num_rules > NL80211_MAX_SUPP_REG_RULES) - return NULL; - } - - country_ie = triplets_start; - country_ie_len = len_at_triplet; - - size_of_regd = sizeof(struct ieee80211_regdomain) + - (num_rules * sizeof(struct ieee80211_reg_rule)); - - rd = kzalloc(size_of_regd, GFP_KERNEL); - if (!rd) - return NULL; - - rd->n_reg_rules = num_rules; - rd->alpha2[0] = alpha2[0]; - rd->alpha2[1] = alpha2[1]; - - /* This time around we fill in the rd */ - while (country_ie_len >= 3) { - int end_channel = 0; - struct ieee80211_country_ie_triplet *triplet = - (struct ieee80211_country_ie_triplet *) country_ie; - struct ieee80211_reg_rule *reg_rule = NULL; - struct ieee80211_freq_range *freq_range = NULL; - struct ieee80211_power_rule *power_rule = NULL; - - /* - * Must parse if dot11RegulatoryClassesRequired is true, - * we don't support this yet - */ - if (triplet->ext.reg_extension_id >= - IEEE80211_COUNTRY_EXTENSION_ID) { - country_ie += 3; - country_ie_len -= 3; - continue; - } - - if (triplet->chans.first_channel == 0) { - country_ie++; - country_ie_len--; - break; - } - - reg_rule = &rd->reg_rules[i]; - freq_range = ®_rule->freq_range; - power_rule = ®_rule->power_rule; - - reg_rule->flags = flags; - - /* 2 GHz */ - if (band == IEEE80211_BAND_2GHZ) - end_channel = triplet->chans.first_channel + - triplet->chans.num_channels -1; - else - end_channel = triplet->chans.first_channel + - (4 * (triplet->chans.num_channels - 1)); - - end_channel = max_subband_chan(band, - triplet->chans.first_channel, - end_channel, - triplet->chans.max_power, - &country_ie, - &country_ie_len); - - /* - * The +10 is since the regulatory domain expects - * the actual band edge, not the center of freq for - * its start and end freqs, assuming 20 MHz bandwidth on - * the channels passed - */ - freq_range->start_freq_khz = - MHZ_TO_KHZ(ieee80211_channel_to_frequency( - triplet->chans.first_channel) - 10); - freq_range->end_freq_khz = - MHZ_TO_KHZ(ieee80211_channel_to_frequency( - end_channel) + 10); - - /* - * These are large arbitrary values we use to intersect later. - * Increment this if we ever support >= 40 MHz channels - * in IEEE 802.11 - */ - freq_range->max_bandwidth_khz = MHZ_TO_KHZ(40); - power_rule->max_antenna_gain = DBI_TO_MBI(100); - power_rule->max_eirp = DBM_TO_MBM(triplet->chans.max_power); - - i++; - - if (country_ie_len >= 3) { - country_ie += 3; - country_ie_len -= 3; - } - - BUG_ON(i > NL80211_MAX_SUPP_REG_RULES); - } - - return rd; -} - - -/* * Helper for regdom_intersect(), this does the real * mathematical intersection fun */ @@ -1151,7 +661,8 @@ static int freq_reg_info_regd(struct wiphy *wiphy, * Follow the driver's regulatory domain, if present, unless a country * IE has been processed or a user wants to help complaince further */ - if (last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && + if (!custom_regd && + last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && last_request->initiator != NL80211_REGDOM_SET_BY_USER && wiphy->regd) regd = wiphy->regd; @@ -1191,7 +702,6 @@ static int freq_reg_info_regd(struct wiphy *wiphy, return -EINVAL; } -EXPORT_SYMBOL(freq_reg_info); int freq_reg_info(struct wiphy *wiphy, u32 center_freq, @@ -1205,6 +715,61 @@ int freq_reg_info(struct wiphy *wiphy, reg_rule, NULL); } +EXPORT_SYMBOL(freq_reg_info); + +#ifdef CONFIG_CFG80211_REG_DEBUG +static const char *reg_initiator_name(enum nl80211_reg_initiator initiator) +{ + switch (initiator) { + case NL80211_REGDOM_SET_BY_CORE: + return "Set by core"; + case NL80211_REGDOM_SET_BY_USER: + return "Set by user"; + case NL80211_REGDOM_SET_BY_DRIVER: + return "Set by driver"; + case NL80211_REGDOM_SET_BY_COUNTRY_IE: + return "Set by country IE"; + default: + WARN_ON(1); + return "Set by bug"; + } +} + +static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan, + u32 desired_bw_khz, + const struct ieee80211_reg_rule *reg_rule) +{ + const struct ieee80211_power_rule *power_rule; + const struct ieee80211_freq_range *freq_range; + char max_antenna_gain[32]; + + power_rule = ®_rule->power_rule; + freq_range = ®_rule->freq_range; + + if (!power_rule->max_antenna_gain) + snprintf(max_antenna_gain, 32, "N/A"); + else + snprintf(max_antenna_gain, 32, "%d", power_rule->max_antenna_gain); + + REG_DBG_PRINT("Updating information on frequency %d MHz " + "for a %d MHz width channel with regulatory rule:\n", + chan->center_freq, + KHZ_TO_MHZ(desired_bw_khz)); + + REG_DBG_PRINT("%d KHz - %d KHz @ KHz), (%s mBi, %d mBm)\n", + freq_range->start_freq_khz, + freq_range->end_freq_khz, + max_antenna_gain, + power_rule->max_eirp); +} +#else +static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan, + u32 desired_bw_khz, + const struct ieee80211_reg_rule *reg_rule) +{ + return; +} +#endif /* * Note that right now we assume the desired channel bandwidth @@ -1215,7 +780,9 @@ int freq_reg_info(struct wiphy *wiphy, * on the wiphy with the target_bw specified. Then we can simply use * that below for the desired_bw_khz below. */ -static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band, +static void handle_channel(struct wiphy *wiphy, + enum nl80211_reg_initiator initiator, + enum ieee80211_band band, unsigned int chan_idx) { int r; @@ -1245,40 +812,26 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band, if (r) { /* - * This means no regulatory rule was found in the country IE - * with a frequency range on the center_freq's band, since - * IEEE-802.11 allows for a country IE to have a subset of the - * regulatory information provided in a country we ignore - * disabling the channel unless at least one reg rule was - * found on the center_freq's band. For details see this - * clarification: - * - * http://tinyurl.com/11d-clarification + * We will disable all channels that do not match our + * recieved regulatory rule unless the hint is coming + * from a Country IE and the Country IE had no information + * about a band. The IEEE 802.11 spec allows for an AP + * to send only a subset of the regulatory rules allowed, + * so an AP in the US that only supports 2.4 GHz may only send + * a country IE with information for the 2.4 GHz band + * while 5 GHz is still supported. */ - if (r == -ERANGE && - last_request->initiator == - NL80211_REGDOM_SET_BY_COUNTRY_IE) { - REG_DBG_PRINT("cfg80211: Leaving channel %d MHz " - "intact on %s - no rule found in band on " - "Country IE\n", - chan->center_freq, wiphy_name(wiphy)); - } else { - /* - * In this case we know the country IE has at least one reg rule - * for the band so we respect its band definitions - */ - if (last_request->initiator == - NL80211_REGDOM_SET_BY_COUNTRY_IE) - REG_DBG_PRINT("cfg80211: Disabling " - "channel %d MHz on %s due to " - "Country IE\n", - chan->center_freq, wiphy_name(wiphy)); - flags |= IEEE80211_CHAN_DISABLED; - chan->flags = flags; - } + if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE && + r == -ERANGE) + return; + + REG_DBG_PRINT("Disabling freq %d MHz\n", chan->center_freq); + chan->flags = IEEE80211_CHAN_DISABLED; return; } + chan_reg_rule_print_dbg(chan, desired_bw_khz, reg_rule); + power_rule = ®_rule->power_rule; freq_range = ®_rule->freq_range; @@ -1312,7 +865,9 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band, chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp); } -static void handle_band(struct wiphy *wiphy, enum ieee80211_band band) +static void handle_band(struct wiphy *wiphy, + enum ieee80211_band band, + enum nl80211_reg_initiator initiator) { unsigned int i; struct ieee80211_supported_band *sband; @@ -1321,24 +876,42 @@ static void handle_band(struct wiphy *wiphy, enum ieee80211_band band) sband = wiphy->bands[band]; for (i = 0; i < sband->n_channels; i++) - handle_channel(wiphy, band, i); + handle_channel(wiphy, initiator, band, i); } static bool ignore_reg_update(struct wiphy *wiphy, enum nl80211_reg_initiator initiator) { - if (!last_request) + if (!last_request) { + REG_DBG_PRINT("Ignoring regulatory request %s since " + "last_request is not set\n", + reg_initiator_name(initiator)); return true; + } + if (initiator == NL80211_REGDOM_SET_BY_CORE && - wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) + wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) { + REG_DBG_PRINT("Ignoring regulatory request %s " + "since the driver uses its own custom " + "regulatory domain ", + reg_initiator_name(initiator)); return true; + } + /* * wiphy->regd will be set once the device has its own * desired regulatory domain set */ if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd && - !is_world_regdom(last_request->alpha2)) + initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE && + !is_world_regdom(last_request->alpha2)) { + REG_DBG_PRINT("Ignoring regulatory request %s " + "since the driver requires its own regulaotry " + "domain to be set first", + reg_initiator_name(initiator)); return true; + } + return false; } @@ -1558,7 +1131,7 @@ void wiphy_update_regulatory(struct wiphy *wiphy, goto out; for (band = 0; band < IEEE80211_NUM_BANDS; band++) { if (wiphy->bands[band]) - handle_band(wiphy, band); + handle_band(wiphy, band, initiator); } out: reg_process_beacons(wiphy); @@ -1594,10 +1167,17 @@ static void handle_channel_custom(struct wiphy *wiphy, regd); if (r) { + REG_DBG_PRINT("Disabling freq %d MHz as custom " + "regd has no rule that fits a %d MHz " + "wide channel\n", + chan->center_freq, + KHZ_TO_MHZ(desired_bw_khz)); chan->flags = IEEE80211_CHAN_DISABLED; return; } + chan_reg_rule_print_dbg(chan, desired_bw_khz, reg_rule); + power_rule = ®_rule->power_rule; freq_range = ®_rule->freq_range; @@ -1695,7 +1275,7 @@ static int ignore_request(struct wiphy *wiphy, return 0; return -EALREADY; } - return REG_INTERSECT; + return 0; case NL80211_REGDOM_SET_BY_DRIVER: if (last_request->initiator == NL80211_REGDOM_SET_BY_CORE) { if (regdom_changes(pending_request->alpha2)) @@ -1743,6 +1323,21 @@ static int ignore_request(struct wiphy *wiphy, return -EINVAL; } +static void reg_set_request_processed(void) +{ + bool need_more_processing = false; + + last_request->processed = true; + + spin_lock(®_requests_lock); + if (!list_empty(®_requests_list)) + need_more_processing = true; + spin_unlock(®_requests_lock); + + if (need_more_processing) + schedule_work(®_work); +} + /** * __regulatory_hint - hint to the wireless core a regulatory domain * @wiphy: if the hint comes from country information from an AP, this @@ -1818,8 +1413,10 @@ new_request: * have applied the requested regulatory domain before we just * inform userspace we have processed the request */ - if (r == -EALREADY) + if (r == -EALREADY) { nl80211_send_reg_change_event(last_request); + reg_set_request_processed(); + } return r; } @@ -1831,48 +1428,64 @@ static void reg_process_hint(struct regulatory_request *reg_request) { int r = 0; struct wiphy *wiphy = NULL; + enum nl80211_reg_initiator initiator = reg_request->initiator; BUG_ON(!reg_request->alpha2); - mutex_lock(&cfg80211_mutex); - mutex_lock(®_mutex); - if (wiphy_idx_valid(reg_request->wiphy_idx)) wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx); if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER && !wiphy) { kfree(reg_request); - goto out; + return; } r = __regulatory_hint(wiphy, reg_request); /* This is required so that the orig_* parameters are saved */ if (r == -EALREADY && wiphy && wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) - wiphy_update_regulatory(wiphy, reg_request->initiator); -out: - mutex_unlock(®_mutex); - mutex_unlock(&cfg80211_mutex); + wiphy_update_regulatory(wiphy, initiator); } -/* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* */ +/* + * Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* + * Regulatory hints come on a first come first serve basis and we + * must process each one atomically. + */ static void reg_process_pending_hints(void) - { +{ struct regulatory_request *reg_request; + mutex_lock(&cfg80211_mutex); + mutex_lock(®_mutex); + + /* When last_request->processed becomes true this will be rescheduled */ + if (last_request && !last_request->processed) { + REG_DBG_PRINT("Pending regulatory request, waiting " + "for it to be processed..."); + goto out; + } + spin_lock(®_requests_lock); - while (!list_empty(®_requests_list)) { - reg_request = list_first_entry(®_requests_list, - struct regulatory_request, - list); - list_del_init(®_request->list); + if (list_empty(®_requests_list)) { spin_unlock(®_requests_lock); - reg_process_hint(reg_request); - spin_lock(®_requests_lock); + goto out; } + + reg_request = list_first_entry(®_requests_list, + struct regulatory_request, + list); + list_del_init(®_request->list); + spin_unlock(®_requests_lock); + + reg_process_hint(reg_request); + +out: + mutex_unlock(®_mutex); + mutex_unlock(&cfg80211_mutex); } /* Processes beacon hints -- this has nothing to do with country IEs */ @@ -1919,10 +1532,13 @@ static void reg_todo(struct work_struct *work) reg_process_pending_beacon_hints(); } -static DECLARE_WORK(reg_work, reg_todo); - static void queue_regulatory_request(struct regulatory_request *request) { + if (isalpha(request->alpha2[0])) + request->alpha2[0] = toupper(request->alpha2[0]); + if (isalpha(request->alpha2[1])) + request->alpha2[1] = toupper(request->alpha2[1]); + spin_lock(®_requests_lock); list_add_tail(&request->list, ®_requests_list); spin_unlock(®_requests_lock); @@ -1950,12 +1566,7 @@ static int regulatory_hint_core(const char *alpha2) request->alpha2[1] = alpha2[1]; request->initiator = NL80211_REGDOM_SET_BY_CORE; - /* - * This ensures last_request is populated once modules - * come swinging in and calling regulatory hints and - * wiphy_apply_custom_regulatory(). - */ - reg_process_hint(request); + queue_regulatory_request(request); return 0; } @@ -2008,35 +1619,6 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2) } EXPORT_SYMBOL(regulatory_hint); -/* Caller must hold reg_mutex */ -static bool reg_same_country_ie_hint(struct wiphy *wiphy, - u32 country_ie_checksum) -{ - struct wiphy *request_wiphy; - - assert_reg_lock(); - - if (unlikely(last_request->initiator != - NL80211_REGDOM_SET_BY_COUNTRY_IE)) - return false; - - request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx); - - if (!request_wiphy) - return false; - - if (likely(request_wiphy != wiphy)) - return !country_ie_integrity_changes(country_ie_checksum); - /* - * We should not have let these through at this point, they - * should have been picked up earlier by the first alpha2 check - * on the device - */ - if (WARN_ON(!country_ie_integrity_changes(country_ie_checksum))) - return true; - return false; -} - /* * We hold wdev_lock() here so we cannot hold cfg80211_mutex() and * therefore cannot iterate over the rdev list here. @@ -2046,9 +1628,7 @@ void regulatory_hint_11d(struct wiphy *wiphy, u8 *country_ie, u8 country_ie_len) { - struct ieee80211_regdomain *rd = NULL; char alpha2[2]; - u32 checksum = 0; enum environment_cap env = ENVIRON_ANY; struct regulatory_request *request; @@ -2064,14 +1644,6 @@ void regulatory_hint_11d(struct wiphy *wiphy, if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) goto out; - /* - * Pending country IE processing, this can happen after we - * call CRDA and wait for a response if a beacon was received before - * we were able to process the last regulatory_hint_11d() call - */ - if (country_ie_regdomain) - goto out; - alpha2[0] = country_ie[0]; alpha2[1] = country_ie[1]; @@ -2090,39 +1662,14 @@ void regulatory_hint_11d(struct wiphy *wiphy, wiphy_idx_valid(last_request->wiphy_idx))) goto out; - rd = country_ie_2_rd(band, country_ie, country_ie_len, &checksum); - if (!rd) { - REG_DBG_PRINT("cfg80211: Ignoring bogus country IE\n"); - goto out; - } - - /* - * This will not happen right now but we leave it here for the - * the future when we want to add suspend/resume support and having - * the user move to another country after doing so, or having the user - * move to another AP. Right now we just trust the first AP. - * - * If we hit this before we add this support we want to be informed of - * it as it would indicate a mistake in the current design - */ - if (WARN_ON(reg_same_country_ie_hint(wiphy, checksum))) - goto free_rd_out; - request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL); if (!request) - goto free_rd_out; - - /* - * We keep this around for when CRDA comes back with a response so - * we can intersect with that - */ - country_ie_regdomain = rd; + goto out; request->wiphy_idx = get_wiphy_idx(wiphy); - request->alpha2[0] = rd->alpha2[0]; - request->alpha2[1] = rd->alpha2[1]; + request->alpha2[0] = alpha2[0]; + request->alpha2[1] = alpha2[1]; request->initiator = NL80211_REGDOM_SET_BY_COUNTRY_IE; - request->country_ie_checksum = checksum; request->country_ie_env = env; mutex_unlock(®_mutex); @@ -2131,8 +1678,6 @@ void regulatory_hint_11d(struct wiphy *wiphy, return; -free_rd_out: - kfree(rd); out: mutex_unlock(®_mutex); } @@ -2147,7 +1692,7 @@ static void restore_alpha2(char *alpha2, bool reset_user) if (is_user_regdom_saved()) { /* Unless we're asked to ignore it and reset it */ if (reset_user) { - REG_DBG_PRINT("cfg80211: Restoring regulatory settings " + REG_DBG_PRINT("Restoring regulatory settings " "including user preference\n"); user_alpha2[0] = '9'; user_alpha2[1] = '7'; @@ -2158,7 +1703,7 @@ static void restore_alpha2(char *alpha2, bool reset_user) * back as they were for a full restore. */ if (!is_world_regdom(ieee80211_regdom)) { - REG_DBG_PRINT("cfg80211: Keeping preference on " + REG_DBG_PRINT("Keeping preference on " "module parameter ieee80211_regdom: %c%c\n", ieee80211_regdom[0], ieee80211_regdom[1]); @@ -2166,7 +1711,7 @@ static void restore_alpha2(char *alpha2, bool reset_user) alpha2[1] = ieee80211_regdom[1]; } } else { - REG_DBG_PRINT("cfg80211: Restoring regulatory settings " + REG_DBG_PRINT("Restoring regulatory settings " "while preserving user preference for: %c%c\n", user_alpha2[0], user_alpha2[1]); @@ -2174,14 +1719,14 @@ static void restore_alpha2(char *alpha2, bool reset_user) alpha2[1] = user_alpha2[1]; } } else if (!is_world_regdom(ieee80211_regdom)) { - REG_DBG_PRINT("cfg80211: Keeping preference on " + REG_DBG_PRINT("Keeping preference on " "module parameter ieee80211_regdom: %c%c\n", ieee80211_regdom[0], ieee80211_regdom[1]); alpha2[0] = ieee80211_regdom[0]; alpha2[1] = ieee80211_regdom[1]; } else - REG_DBG_PRINT("cfg80211: Restoring regulatory settings\n"); + REG_DBG_PRINT("Restoring regulatory settings\n"); } /* @@ -2249,7 +1794,7 @@ static void restore_regulatory_settings(bool reset_user) void regulatory_hint_disconnect(void) { - REG_DBG_PRINT("cfg80211: All devices are disconnected, going to " + REG_DBG_PRINT("All devices are disconnected, going to " "restore regulatory settings\n"); restore_regulatory_settings(false); } @@ -2279,7 +1824,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy, if (!reg_beacon) return -ENOMEM; - REG_DBG_PRINT("cfg80211: Found new beacon on " + REG_DBG_PRINT("Found new beacon on " "frequency: %d MHz (Ch %d) on %s\n", beacon_chan->center_freq, ieee80211_frequency_to_channel(beacon_chan->center_freq), @@ -2309,8 +1854,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd) const struct ieee80211_freq_range *freq_range = NULL; const struct ieee80211_power_rule *power_rule = NULL; - printk(KERN_INFO " (start_freq - end_freq @ bandwidth), " - "(max_antenna_gain, max_eirp)\n"); + pr_info(" (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)\n"); for (i = 0; i < rd->n_reg_rules; i++) { reg_rule = &rd->reg_rules[i]; @@ -2322,16 +1866,14 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd) * in certain regions */ if (power_rule->max_antenna_gain) - printk(KERN_INFO " (%d KHz - %d KHz @ %d KHz), " - "(%d mBi, %d mBm)\n", + pr_info(" (%d KHz - %d KHz @ %d KHz), (%d mBi, %d mBm)\n", freq_range->start_freq_khz, freq_range->end_freq_khz, freq_range->max_bandwidth_khz, power_rule->max_antenna_gain, power_rule->max_eirp); else - printk(KERN_INFO " (%d KHz - %d KHz @ %d KHz), " - "(N/A, %d mBm)\n", + pr_info(" (%d KHz - %d KHz @ %d KHz), (N/A, %d mBm)\n", freq_range->start_freq_khz, freq_range->end_freq_khz, freq_range->max_bandwidth_khz, @@ -2350,27 +1892,20 @@ static void print_regdomain(const struct ieee80211_regdomain *rd) rdev = cfg80211_rdev_by_wiphy_idx( last_request->wiphy_idx); if (rdev) { - printk(KERN_INFO "cfg80211: Current regulatory " - "domain updated by AP to: %c%c\n", + pr_info("Current regulatory domain updated by AP to: %c%c\n", rdev->country_ie_alpha2[0], rdev->country_ie_alpha2[1]); } else - printk(KERN_INFO "cfg80211: Current regulatory " - "domain intersected:\n"); + pr_info("Current regulatory domain intersected:\n"); } else - printk(KERN_INFO "cfg80211: Current regulatory " - "domain intersected:\n"); + pr_info("Current regulatory domain intersected:\n"); } else if (is_world_regdom(rd->alpha2)) - printk(KERN_INFO "cfg80211: World regulatory " - "domain updated:\n"); + pr_info("World regulatory domain updated:\n"); else { if (is_unknown_alpha2(rd->alpha2)) - printk(KERN_INFO "cfg80211: Regulatory domain " - "changed to driver built-in settings " - "(unknown country)\n"); + pr_info("Regulatory domain changed to driver built-in settings (unknown country)\n"); else - printk(KERN_INFO "cfg80211: Regulatory domain " - "changed to country: %c%c\n", + pr_info("Regulatory domain changed to country: %c%c\n", rd->alpha2[0], rd->alpha2[1]); } print_rd_rules(rd); @@ -2378,38 +1913,10 @@ static void print_regdomain(const struct ieee80211_regdomain *rd) static void print_regdomain_info(const struct ieee80211_regdomain *rd) { - printk(KERN_INFO "cfg80211: Regulatory domain: %c%c\n", - rd->alpha2[0], rd->alpha2[1]); + pr_info("Regulatory domain: %c%c\n", rd->alpha2[0], rd->alpha2[1]); print_rd_rules(rd); } -#ifdef CONFIG_CFG80211_REG_DEBUG -static void reg_country_ie_process_debug( - const struct ieee80211_regdomain *rd, - const struct ieee80211_regdomain *country_ie_regdomain, - const struct ieee80211_regdomain *intersected_rd) -{ - printk(KERN_DEBUG "cfg80211: Received country IE:\n"); - print_regdomain_info(country_ie_regdomain); - printk(KERN_DEBUG "cfg80211: CRDA thinks this should applied:\n"); - print_regdomain_info(rd); - if (intersected_rd) { - printk(KERN_DEBUG "cfg80211: We intersect both of these " - "and get:\n"); - print_regdomain_info(intersected_rd); - return; - } - printk(KERN_DEBUG "cfg80211: Intersection between both failed\n"); -} -#else -static inline void reg_country_ie_process_debug( - const struct ieee80211_regdomain *rd, - const struct ieee80211_regdomain *country_ie_regdomain, - const struct ieee80211_regdomain *intersected_rd) -{ -} -#endif - /* Takes ownership of rd only if it doesn't fail */ static int __set_regdom(const struct ieee80211_regdomain *rd) { @@ -2457,8 +1964,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd) return -EINVAL; if (!is_valid_rd(rd)) { - printk(KERN_ERR "cfg80211: Invalid " - "regulatory domain detected:\n"); + pr_err("Invalid regulatory domain detected:\n"); print_regdomain_info(rd); return -EINVAL; } @@ -2521,34 +2027,6 @@ static int __set_regdom(const struct ieee80211_regdomain *rd) return 0; } - /* - * Country IE requests are handled a bit differently, we intersect - * the country IE rd with what CRDA believes that country should have - */ - - /* - * Userspace could have sent two replies with only - * one kernel request. By the second reply we would have - * already processed and consumed the country_ie_regdomain. - */ - if (!country_ie_regdomain) - return -EALREADY; - BUG_ON(rd == country_ie_regdomain); - - /* - * Intersect what CRDA returned and our what we - * had built from the Country IE received - */ - - intersected_rd = regdom_intersect(rd, country_ie_regdomain); - - reg_country_ie_process_debug(rd, - country_ie_regdomain, - intersected_rd); - - kfree(country_ie_regdomain); - country_ie_regdomain = NULL; - if (!intersected_rd) return -EINVAL; @@ -2602,6 +2080,8 @@ int set_regdom(const struct ieee80211_regdomain *rd) nl80211_send_reg_change_event(last_request); + reg_set_request_processed(); + mutex_unlock(®_mutex); return r; @@ -2630,7 +2110,7 @@ out: mutex_unlock(®_mutex); } -int regulatory_init(void) +int __init regulatory_init(void) { int err = 0; @@ -2658,8 +2138,7 @@ int regulatory_init(void) * early boot for call_usermodehelper(). For now treat these * errors as non-fatal. */ - printk(KERN_ERR "cfg80211: kobject_uevent_env() was unable " - "to call CRDA during init"); + pr_err("kobject_uevent_env() was unable to call CRDA during init\n"); #ifdef CONFIG_CFG80211_REG_DEBUG /* We want to find out exactly why when debugging */ WARN_ON(err); @@ -2676,7 +2155,7 @@ int regulatory_init(void) return 0; } -void regulatory_exit(void) +void /* __init_or_exit */ regulatory_exit(void) { struct regulatory_request *reg_request, *tmp; struct reg_beacon *reg_beacon, *btmp; @@ -2688,9 +2167,6 @@ void regulatory_exit(void) reset_regdomains(); - kfree(country_ie_regdomain); - country_ie_regdomain = NULL; - kfree(last_request); platform_device_unregister(reg_pdev); diff --git a/net/wireless/reg.h b/net/wireless/reg.h index b26224a9f3bc..c4695d07af23 100644 --- a/net/wireless/reg.h +++ b/net/wireless/reg.h @@ -10,7 +10,7 @@ int regulatory_hint_user(const char *alpha2); void reg_device_remove(struct wiphy *wiphy); -int regulatory_init(void); +int __init regulatory_init(void); void regulatory_exit(void); int set_regdom(const struct ieee80211_regdomain *rd); diff --git a/net/wireless/scan.c b/net/wireless/scan.c index a026c6d56bd3..ea427f418f64 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -275,6 +275,7 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, { struct cfg80211_registered_device *dev = wiphy_to_dev(wiphy); struct cfg80211_internal_bss *bss, *res = NULL; + unsigned long now = jiffies; spin_lock_bh(&dev->bss_lock); @@ -283,6 +284,10 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, continue; if (channel && bss->pub.channel != channel) continue; + /* Don't get expired BSS structs */ + if (time_after(now, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE) && + !atomic_read(&bss->hold)) + continue; if (is_bss(&bss->pub, bssid, ssid, ssid_len)) { res = bss; kref_get(&res->ref); @@ -459,6 +464,9 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, if (res->pub.beacon_ies) { size_t used = dev->wiphy.bss_priv_size + sizeof(*res); size_t ielen = res->pub.len_beacon_ies; + bool information_elements_is_beacon_ies = + (found->pub.information_elements == + found->pub.beacon_ies); if (found->pub.beacon_ies && !found->beacon_ies_allocated && @@ -482,6 +490,14 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, found->pub.len_beacon_ies = ielen; } } + + /* Override IEs if they were from a beacon before */ + if (information_elements_is_beacon_ies) { + found->pub.information_elements = + found->pub.beacon_ies; + found->pub.len_information_elements = + found->pub.len_beacon_ies; + } } kref_put(&res->ref, bss_release); @@ -515,7 +531,7 @@ cfg80211_inform_bss(struct wiphy *wiphy, privsz = wiphy->bss_priv_size; - if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC && + if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC && (signal < 0 || signal > 100))) return NULL; @@ -571,7 +587,7 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy, u.probe_resp.variable); size_t privsz = wiphy->bss_priv_size; - if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC && + if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC && (signal < 0 || signal > 100))) return NULL; @@ -645,14 +661,14 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub) bss = container_of(pub, struct cfg80211_internal_bss, pub); spin_lock_bh(&dev->bss_lock); + if (!list_empty(&bss->list)) { + list_del_init(&bss->list); + dev->bss_generation++; + rb_erase(&bss->rbn, &dev->bss_tree); - list_del(&bss->list); - dev->bss_generation++; - rb_erase(&bss->rbn, &dev->bss_tree); - + kref_put(&bss->ref, bss_release); + } spin_unlock_bh(&dev->bss_lock); - - kref_put(&bss->ref, bss_release); } EXPORT_SYMBOL(cfg80211_unlink_bss); diff --git a/net/wireless/sme.c b/net/wireless/sme.c index 72222f0074db..e17b0bee6bdc 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -35,7 +35,7 @@ struct cfg80211_conn { bool auto_auth, prev_bssid_valid; }; -bool cfg80211_is_all_idle(void) +static bool cfg80211_is_all_idle(void) { struct cfg80211_registered_device *rdev; struct wireless_dev *wdev; @@ -411,7 +411,8 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, ASSERT_WDEV_LOCK(wdev); - if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && + wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) return; if (wdev->sme_state != CFG80211_SME_CONNECTING) @@ -548,7 +549,8 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, ASSERT_WDEV_LOCK(wdev); - if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && + wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) return; if (wdev->sme_state != CFG80211_SME_CONNECTED) @@ -644,7 +646,8 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, ASSERT_WDEV_LOCK(wdev); - if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) + if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && + wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) return; if (wdev->sme_state != CFG80211_SME_CONNECTED) @@ -695,7 +698,7 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, */ if (rdev->ops->del_key) for (i = 0; i < 6; i++) - rdev->ops->del_key(wdev->wiphy, dev, i, NULL); + rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); #ifdef CONFIG_CFG80211_WEXT memset(&wrqu, 0, sizeof(wrqu)); diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c index 9f2cef3e0ca0..4294fa22bb2d 100644 --- a/net/wireless/sysfs.c +++ b/net/wireless/sysfs.c @@ -35,6 +35,14 @@ SHOW_FMT(index, "%d", wiphy_idx); SHOW_FMT(macaddress, "%pM", wiphy.perm_addr); SHOW_FMT(address_mask, "%pM", wiphy.addr_mask); +static ssize_t name_show(struct device *dev, + struct device_attribute *attr, + char *buf) { + struct wiphy *wiphy = &dev_to_rdev(dev)->wiphy; + return sprintf(buf, "%s\n", dev_name(&wiphy->dev)); +} + + static ssize_t addresses_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -57,6 +65,7 @@ static struct device_attribute ieee80211_dev_attrs[] = { __ATTR_RO(macaddress), __ATTR_RO(address_mask), __ATTR_RO(addresses), + __ATTR_RO(name), {} }; @@ -110,6 +119,13 @@ static int wiphy_resume(struct device *dev) return ret; } +static const void *wiphy_namespace(struct device *d) +{ + struct wiphy *wiphy = container_of(d, struct wiphy, dev); + + return wiphy_net(wiphy); +} + struct class ieee80211_class = { .name = "ieee80211", .owner = THIS_MODULE, @@ -120,6 +136,8 @@ struct class ieee80211_class = { #endif .suspend = wiphy_suspend, .resume = wiphy_resume, + .ns_type = &net_ns_type_operations, + .namespace = wiphy_namespace, }; int wiphy_sysfs_init(void) diff --git a/net/wireless/util.c b/net/wireless/util.c index 3416373a9c0c..7620ae2fcf18 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -144,19 +144,25 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy) int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, struct key_params *params, int key_idx, - const u8 *mac_addr) + bool pairwise, const u8 *mac_addr) { int i; if (key_idx > 5) return -EINVAL; + if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + return -EINVAL; + + if (pairwise && !mac_addr) + return -EINVAL; + /* * Disallow pairwise keys with non-zero index unless it's WEP * (because current deployments use pairwise WEP keys with * non-zero indizes but 802.11i clearly specifies to use zero) */ - if (mac_addr && key_idx && + if (pairwise && key_idx && params->cipher != WLAN_CIPHER_SUITE_WEP40 && params->cipher != WLAN_CIPHER_SUITE_WEP104) return -EINVAL; @@ -183,7 +189,14 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, return -EINVAL; break; default: - return -EINVAL; + /* + * We don't know anything about this algorithm, + * allow using it -- but the driver must check + * all parameters! We still check below whether + * or not the driver supports this algorithm, + * of course. + */ + break; } if (params->seq) { @@ -221,7 +234,7 @@ const unsigned char bridge_tunnel_header[] __aligned(2) = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; EXPORT_SYMBOL(bridge_tunnel_header); -unsigned int ieee80211_hdrlen(__le16 fc) +unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc) { unsigned int hdrlen = 24; @@ -319,7 +332,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { case cpu_to_le16(IEEE80211_FCTL_TODS): if (unlikely(iftype != NL80211_IFTYPE_AP && - iftype != NL80211_IFTYPE_AP_VLAN)) + iftype != NL80211_IFTYPE_AP_VLAN && + iftype != NL80211_IFTYPE_P2P_GO)) return -1; break; case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS): @@ -347,7 +361,8 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, break; case cpu_to_le16(IEEE80211_FCTL_FROMDS): if ((iftype != NL80211_IFTYPE_STATION && - iftype != NL80211_IFTYPE_MESH_POINT) || + iftype != NL80211_IFTYPE_P2P_CLIENT && + iftype != NL80211_IFTYPE_MESH_POINT) || (is_multicast_ether_addr(dst) && !compare_ether_addr(src, addr))) return -1; @@ -424,6 +439,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, switch (iftype) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_P2P_GO: fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); /* DA BSSID SA */ memcpy(hdr.addr1, skb->data, ETH_ALEN); @@ -432,6 +448,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, hdrlen = 24; break; case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: fc |= cpu_to_le16(IEEE80211_FCTL_TODS); /* BSSID SA DA */ memcpy(hdr.addr1, bssid, ETH_ALEN); @@ -485,7 +502,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, skb_orphan(skb); if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC)) { - printk(KERN_ERR "failed to reallocate Tx buffer\n"); + pr_err("failed to reallocate Tx buffer\n"); return -ENOMEM; } skb->truesize += head_need; @@ -666,22 +683,20 @@ void cfg80211_upload_connect_keys(struct wireless_dev *wdev) for (i = 0; i < 6; i++) { if (!wdev->connect_keys->params[i].cipher) continue; - if (rdev->ops->add_key(wdev->wiphy, dev, i, NULL, + if (rdev->ops->add_key(wdev->wiphy, dev, i, false, NULL, &wdev->connect_keys->params[i])) { - printk(KERN_ERR "%s: failed to set key %d\n", - dev->name, i); + netdev_err(dev, "failed to set key %d\n", i); continue; } if (wdev->connect_keys->def == i) - if (rdev->ops->set_default_key(wdev->wiphy, dev, i)) { - printk(KERN_ERR "%s: failed to set defkey %d\n", - dev->name, i); + if (rdev->ops->set_default_key(wdev->wiphy, dev, + i, true, true)) { + netdev_err(dev, "failed to set defkey %d\n", i); continue; } if (wdev->connect_keys->defmgmt == i) if (rdev->ops->set_default_mgmt_key(wdev->wiphy, dev, i)) - printk(KERN_ERR "%s: failed to set mgtdef %d\n", - dev->name, i); + netdev_err(dev, "failed to set mgtdef %d\n", i); } kfree(wdev->connect_keys); @@ -770,18 +785,22 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, return -EOPNOTSUPP; /* if it's part of a bridge, reject changing type to station/ibss */ - if (dev->br_port && (ntype == NL80211_IFTYPE_ADHOC || - ntype == NL80211_IFTYPE_STATION)) + if ((dev->priv_flags & IFF_BRIDGE_PORT) && + (ntype == NL80211_IFTYPE_ADHOC || + ntype == NL80211_IFTYPE_STATION || + ntype == NL80211_IFTYPE_P2P_CLIENT)) return -EBUSY; if (ntype != otype) { dev->ieee80211_ptr->use_4addr = false; + dev->ieee80211_ptr->mesh_id_up_len = 0; switch (otype) { case NL80211_IFTYPE_ADHOC: cfg80211_leave_ibss(rdev, dev, false); break; case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: cfg80211_disconnect(rdev, dev, WLAN_REASON_DEAUTH_LEAVING, true); break; @@ -810,9 +829,11 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, if (dev->ieee80211_ptr->use_4addr) break; /* fall through */ + case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_ADHOC: dev->priv_flags |= IFF_DONT_BRIDGE; break; + case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_WDS: @@ -823,7 +844,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, /* monitor can't bridge anyway */ break; case NL80211_IFTYPE_UNSPECIFIED: - case __NL80211_IFTYPE_AFTER_LAST: + case NUM_NL80211_IFTYPES: /* not happening */ break; } diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 96342993cf93..3e5dbd4e4cd5 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -432,14 +432,17 @@ int cfg80211_wext_giwretry(struct net_device *dev, EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, - struct net_device *dev, const u8 *addr, - bool remove, bool tx_key, int idx, - struct key_params *params) + struct net_device *dev, bool pairwise, + const u8 *addr, bool remove, bool tx_key, + int idx, struct key_params *params) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err, i; bool rejoin = false; + if (pairwise && !addr) + return -EINVAL; + if (!wdev->wext.keys) { wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), GFP_KERNEL); @@ -478,7 +481,13 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, __cfg80211_leave_ibss(rdev, wdev->netdev, true); rejoin = true; } - err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr); + + if (!pairwise && addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + err = -ENOENT; + else + err = rdev->ops->del_key(&rdev->wiphy, dev, idx, + pairwise, addr); } wdev->wext.connect.privacy = false; /* @@ -507,12 +516,13 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, if (addr) tx_key = false; - if (cfg80211_validate_key_settings(rdev, params, idx, addr)) + if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) return -EINVAL; err = 0; if (wdev->current_bss) - err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params); + err = rdev->ops->add_key(&rdev->wiphy, dev, idx, + pairwise, addr, params); if (err) return err; @@ -538,8 +548,8 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, __cfg80211_leave_ibss(rdev, wdev->netdev, true); rejoin = true; } - err = rdev->ops->set_default_key(&rdev->wiphy, - dev, idx); + err = rdev->ops->set_default_key(&rdev->wiphy, dev, + idx, true, true); } if (!err) { wdev->wext.default_key = idx; @@ -563,17 +573,17 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, } static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, - struct net_device *dev, const u8 *addr, - bool remove, bool tx_key, int idx, - struct key_params *params) + struct net_device *dev, bool pairwise, + const u8 *addr, bool remove, bool tx_key, + int idx, struct key_params *params) { int err; /* devlist mutex needed for possible IBSS re-join */ mutex_lock(&rdev->devlist_mtx); wdev_lock(dev->ieee80211_ptr); - err = __cfg80211_set_encryption(rdev, dev, addr, remove, - tx_key, idx, params); + err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, + remove, tx_key, idx, params); wdev_unlock(dev->ieee80211_ptr); mutex_unlock(&rdev->devlist_mtx); @@ -617,8 +627,8 @@ int cfg80211_wext_siwencode(struct net_device *dev, err = 0; wdev_lock(wdev); if (wdev->current_bss) - err = rdev->ops->set_default_key(&rdev->wiphy, - dev, idx); + err = rdev->ops->set_default_key(&rdev->wiphy, dev, + idx, true, true); if (!err) wdev->wext.default_key = idx; wdev_unlock(wdev); @@ -635,7 +645,7 @@ int cfg80211_wext_siwencode(struct net_device *dev, else if (!remove) return -EINVAL; - return cfg80211_set_encryption(rdev, dev, NULL, remove, + return cfg80211_set_encryption(rdev, dev, false, NULL, remove, wdev->wext.default_key == -1, idx, ¶ms); } @@ -725,7 +735,9 @@ int cfg80211_wext_siwencodeext(struct net_device *dev, } return cfg80211_set_encryption( - rdev, dev, addr, remove, + rdev, dev, + !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), + addr, remove, ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, idx, ¶ms); } @@ -829,7 +841,7 @@ int cfg80211_wext_siwtxpower(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); - enum tx_power_setting type; + enum nl80211_tx_power_setting type; int dbm = 0; if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) @@ -852,7 +864,7 @@ int cfg80211_wext_siwtxpower(struct net_device *dev, if (data->txpower.value < 0) return -EINVAL; dbm = data->txpower.value; - type = TX_POWER_FIXED; + type = NL80211_TX_POWER_FIXED; /* TODO: do regulatory check! */ } else { /* @@ -860,10 +872,10 @@ int cfg80211_wext_siwtxpower(struct net_device *dev, * passed in from userland. */ if (data->txpower.value < 0) { - type = TX_POWER_AUTOMATIC; + type = NL80211_TX_POWER_AUTOMATIC; } else { dbm = data->txpower.value; - type = TX_POWER_LIMITED; + type = NL80211_TX_POWER_LIMITED; } } } else { @@ -872,7 +884,7 @@ int cfg80211_wext_siwtxpower(struct net_device *dev, return 0; } - return rdev->ops->set_tx_power(wdev->wiphy, type, dbm); + return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm)); } EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower); @@ -1354,6 +1366,10 @@ struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) } wstats.qual.updated |= IW_QUAL_NOISE_INVALID; + if (sinfo.filled & STATION_INFO_RX_DROP_MISC) + wstats.discard.misc = sinfo.rx_dropped_misc; + if (sinfo.filled & STATION_INFO_TX_FAILED) + wstats.discard.retries = sinfo.tx_failed; return &wstats; } @@ -1420,6 +1436,9 @@ int cfg80211_wext_giwessid(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; + data->flags = 0; + data->length = 0; + switch (wdev->iftype) { case NL80211_IFTYPE_ADHOC: return cfg80211_ibss_wext_giwessid(dev, info, data, ssid); @@ -1471,6 +1490,7 @@ int cfg80211_wext_siwpmksa(struct net_device *dev, return -EOPNOTSUPP; } } +EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa); static const iw_handler cfg80211_handlers[] = { [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname, diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c index 0ef17bc42bac..fdbc23c10d8c 100644 --- a/net/wireless/wext-core.c +++ b/net/wireless/wext-core.c @@ -467,8 +467,8 @@ void wireless_send_event(struct net_device * dev, * The best the driver could do is to log an error message. * We will do it ourselves instead... */ - printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n", - dev->name, cmd); + netdev_err(dev, "(WE) : Invalid/Unknown Wireless Event (0x%04X)\n", + cmd); return; } @@ -476,11 +476,13 @@ void wireless_send_event(struct net_device * dev, if (descr->header_type == IW_HEADER_TYPE_POINT) { /* Check if number of token fits within bounds */ if (wrqu->data.length > descr->max_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length); + netdev_err(dev, "(WE) : Wireless Event too big (%d)\n", + wrqu->data.length); return; } if (wrqu->data.length < descr->min_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length); + netdev_err(dev, "(WE) : Wireless Event too small (%d)\n", + wrqu->data.length); return; } /* Calculate extra_len - extra is NULL for restricted events */ @@ -611,7 +613,7 @@ struct iw_statistics *get_wireless_stats(struct net_device *dev) #endif #ifdef CONFIG_CFG80211_WEXT - if (dev->ieee80211_ptr && dev->ieee80211_ptr && + if (dev->ieee80211_ptr && dev->ieee80211_ptr->wiphy && dev->ieee80211_ptr->wiphy->wext && dev->ieee80211_ptr->wiphy->wext->get_wireless_stats) @@ -782,6 +784,22 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd, } } + if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) { + /* + * If this is a GET, but not NOMAX, it means that the extra + * data is not bounded by userspace, but by max_tokens. Thus + * set the length to max_tokens. This matches the extra data + * allocation. + * The driver should fill it with the number of tokens it + * provided, and it may check iwp->length rather than having + * knowledge of max_tokens. If the driver doesn't change the + * iwp->length, this ioctl just copies back max_token tokens + * filled with zeroes. Hopefully the driver isn't claiming + * them to be valid data. + */ + iwp->length = descr->max_tokens; + } + err = handler(dev, info, (union iwreq_data *) iwp, extra); iwp->length += essid_compat; diff --git a/net/wireless/wext-priv.c b/net/wireless/wext-priv.c index 3feb28e41c53..674d426a9d24 100644 --- a/net/wireless/wext-priv.c +++ b/net/wireless/wext-priv.c @@ -152,7 +152,7 @@ static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd, } else if (!iwp->pointer) return -EFAULT; - extra = kmalloc(extra_size, GFP_KERNEL); + extra = kzalloc(extra_size, GFP_KERNEL); if (!extra) return -ENOMEM; diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c index 9818198add8a..6fffe62d7c25 100644 --- a/net/wireless/wext-sme.c +++ b/net/wireless/wext-sme.c @@ -197,6 +197,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev, wdev->wext.connect.ssid_len = len; wdev->wext.connect.crypto.control_port = false; + wdev->wext.connect.crypto.control_port_ethertype = + cpu_to_be16(ETH_P_PAE); err = cfg80211_mgd_wext_connect(rdev, wdev); out: |