main.c revision 9124b07740c51cbc6e358dd0c4abc6ee8ded084d
1f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc/* 2f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2002-2005, Instant802 Networks, Inc. 3f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2005-2006, Devicescape Software, Inc. 4f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 6f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * This program is free software; you can redistribute it and/or modify 7f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * it under the terms of the GNU General Public License version 2 as 8f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * published by the Free Software Foundation. 9f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 10f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 11f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/mac80211.h> 12f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/ieee80211_radiotap.h> 13f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/module.h> 14f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/init.h> 15f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/netdevice.h> 16f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/types.h> 17f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/slab.h> 18f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/skbuff.h> 19f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/etherdevice.h> 20f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/if_arp.h> 21f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/wireless.h> 22f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/rtnetlink.h> 23f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <linux/bitmap.h> 24881d966b48b035ab3f3aeaae0f3d3f9b584f45b2Eric W. Biederman#include <net/net_namespace.h> 25f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/cfg80211.h> 26f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 27f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "ieee80211_i.h" 282c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "rate.h" 29f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo#include "mesh.h" 30f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wep.h" 31f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wme.h" 32f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "aes_ccm.h" 332c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "led.h" 34e0eb68596232788bc352368f2fbc3cb088e42e41Michael Wu#include "cfg.h" 35e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs.h" 36e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs_netdev.h" 37f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 38b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg/* 39b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * For seeing transmitted packets on monitor interfaces 40b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * we have a radiotap header too. 41b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 42b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Bergstruct ieee80211_tx_status_rtap_hdr { 43b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_radiotap_header hdr; 44b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg __le16 tx_flags; 45b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg u8 data_retries; 46b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg} __attribute__ ((packed)); 47b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 48f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 494150c57212ad134765dd78c654a4b9906252b66dJohannes Berg/* must be called under mdev tx lock */ 500d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergvoid ieee80211_configure_filter(struct ieee80211_local *local) 514150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 524150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int changed_flags; 534150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int new_flags = 0; 544150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 5553918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_promiscs)) 564150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_PROMISC_IN_BSS; 574150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 5853918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_allmultis)) 594150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_ALLMULTI; 604150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 614150c57212ad134765dd78c654a4b9906252b66dJohannes Berg if (local->monitors) 628cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_BCN_PRBRESP_PROMISC; 638cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 648cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_fcsfail) 658cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_FCSFAIL; 668cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 678cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_plcpfail) 688cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_PLCPFAIL; 698cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 708cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_control) 718cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_CONTROL; 728cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 738cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_other_bss) 748cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_OTHER_BSS; 754150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 764150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags = local->filter_flags ^ new_flags; 774150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 784150c57212ad134765dd78c654a4b9906252b66dJohannes Berg /* be a bit nasty */ 794150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= (1<<31); 804150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 814150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->ops->configure_filter(local_to_hw(local), 824150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags, &new_flags, 834150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->mdev->mc_count, 844150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->mdev->mc_list); 854150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 864150c57212ad134765dd78c654a4b9906252b66dJohannes Berg WARN_ON(new_flags & (1<<31)); 874150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 884150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->filter_flags = new_flags & ~(1<<31); 894150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 904150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 91b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg/* master interface */ 92f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 930d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergstatic int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr) 940d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg{ 950d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */ 960d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg return ETH_ALEN; 970d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg} 980d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg 990d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergstatic const struct header_ops ieee80211_header_ops = { 1000d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .create = eth_header, 1010d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .parse = header_parse_80211, 1020d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .rebuild = eth_rebuild_header, 1030d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .cache = eth_header_cache, 1040d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg .cache_update = eth_header_cache_update, 1050d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg}; 1060d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Berg 107b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Bergstatic int ieee80211_master_open(struct net_device *dev) 108b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 109133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 110133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 111b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_sub_if_data *sdata; 112b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int res = -EOPNOTSUPP; 113f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 11479010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* we hold the RTNL here so can safely walk the list */ 11579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) { 1163e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (netif_running(sdata->dev)) { 117b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg res = 0; 118b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg break; 119b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg } 120b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg } 12136d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 12236d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg if (res) 12336d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg return res; 12436d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 12551cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller netif_tx_start_all_queues(local->mdev); 12636d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg 12736d6825b91bc492b65b6333c369cd96a2fc8c903Johannes Berg return 0; 128b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 129f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 130b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Bergstatic int ieee80211_master_stop(struct net_device *dev) 131f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 132133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 133133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 134b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_sub_if_data *sdata; 135f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 13679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* we hold the RTNL here so can safely walk the list */ 13779010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry(sdata, &local->interfaces, list) 1383e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (netif_running(sdata->dev)) 139b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg dev_close(sdata->dev); 140f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 141b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return 0; 142b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 143f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1444150c57212ad134765dd78c654a4b9906252b66dJohannes Bergstatic void ieee80211_master_set_multicast_list(struct net_device *dev) 1454150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 146133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv = netdev_priv(dev); 147133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_local *local = mpriv->local; 1484150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 1494150c57212ad134765dd78c654a4b9906252b66dJohannes Berg ieee80211_configure_filter(local); 1504150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 1514150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 152b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg/* everything else */ 153b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 1549d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Bergint ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed) 155b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 1569d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg struct ieee80211_local *local = sdata->local; 157b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_if_conf conf; 158b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 1599d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg if (WARN_ON(!netif_running(sdata->dev))) 1609d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return 0; 1619d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg 1627a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) 1637a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg return -EINVAL; 1647a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg 1659d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg if (!local->ops->config_interface) 166f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 167f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 168b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg memset(&conf, 0, sizeof(conf)); 1699d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.changed = changed; 1709d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg 17105c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION || 17205c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg sdata->vif.type == NL80211_IFTYPE_ADHOC) { 1734150c57212ad134765dd78c654a4b9906252b66dJohannes Berg conf.bssid = sdata->u.sta.bssid; 174b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg conf.ssid = sdata->u.sta.ssid; 175b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg conf.ssid_len = sdata->u.sta.ssid_len; 17605c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg } else if (sdata->vif.type == NL80211_IFTYPE_AP) { 1779d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.bssid = sdata->dev->dev_addr; 178b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg conf.ssid = sdata->u.ap.ssid; 179b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg conf.ssid_len = sdata->u.ap.ssid_len; 1809d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg } else if (ieee80211_vif_is_mesh(&sdata->vif)) { 1819d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg u8 zero[ETH_ALEN] = { 0 }; 1829d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.bssid = zero; 1839d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.ssid = zero; 1849d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg conf.ssid_len = 0; 1859d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg } else { 1869d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg WARN_ON(1); 1879d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return -EINVAL; 188f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 189f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1909d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID))) 1919d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return -EINVAL; 192f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1939d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID))) 1949d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return -EINVAL; 195f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1969d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg return local->ops->config_interface(local_to_hw(local), 1979d139c810a2aa17365cc548d0cd2a189d8433c65Johannes Berg &sdata->vif, &conf); 198b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 199f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 200e8975581f63870be42ff4662b293d1b0c8c21350Johannes Bergint ieee80211_hw_config(struct ieee80211_local *local, u32 changed) 201b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 202b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg struct ieee80211_channel *chan; 203b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int ret = 0; 204e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg int power; 205f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 206c2b13452b283f9c4a5b02a6b53ed6416ebf4c03cJohannes Berg if (local->sw_scanning) 207b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->scan_channel; 2088318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg else 209b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->oper_channel; 210f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 211e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (chan != local->hw.conf.channel) { 212e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.channel = chan; 213e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_CHANNEL; 214e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 215e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg 2168318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 2178318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg if (!local->hw.conf.power_level) 218e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg power = chan->max_power; 2198318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg else 220e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg power = min(chan->max_power, local->hw.conf.power_level); 221e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (local->hw.conf.power_level != power) { 222e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_POWER; 223e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.power_level = power; 224e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 225b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 226e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (changed && local->open_count) { 227e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg ret = local->ops->config(local_to_hw(local), changed); 228d73782fdde76554016abf73b46f843b29f520848Johannes Berg /* 229d73782fdde76554016abf73b46f843b29f520848Johannes Berg * HW reconfiguration should never fail, the driver has told 230d73782fdde76554016abf73b46f843b29f520848Johannes Berg * us what it can support so it should live up to that promise. 231d73782fdde76554016abf73b46f843b29f520848Johannes Berg */ 232d73782fdde76554016abf73b46f843b29f520848Johannes Berg WARN_ON(ret); 233d73782fdde76554016abf73b46f843b29f520848Johannes Berg } 234f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 235b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return ret; 236b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 237f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 238471b3efdfccc257591331724145f8ccf8b3217e1Johannes Bergvoid ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 239471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg u32 changed) 240d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 241471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg struct ieee80211_local *local = sdata->local; 242471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 2437a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) 2447a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg return; 2457a725f73403e874ec52c58741e9b98cd604dbd03Johannes Berg 246471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (!changed) 247471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg return; 248471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 249471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (local->ops->bss_info_changed) 250471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg local->ops->bss_info_changed(local_to_hw(local), 251471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg &sdata->vif, 252471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg &sdata->bss_conf, 253471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg changed); 254d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 255d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 256f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneu32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) 257d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 2587a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg sdata->bss_conf.use_cts_prot = false; 2597a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg sdata->bss_conf.use_short_preamble = false; 2607a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg sdata->bss_conf.use_short_slot = false; 2617a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg return BSS_CHANGED_ERP_CTS_PROT | 2627a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2637a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_SLOT; 264d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 265d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 266f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, 267e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 268f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 269f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 270e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 271f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int tmp; 272f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 273f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->dev = local->mdev; 274f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = IEEE80211_TX_STATUS_MSG; 275e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ? 276f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc &local->skb_queue : &local->skb_queue_unreliable, skb); 277f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp = skb_queue_len(&local->skb_queue) + 278f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_len(&local->skb_queue_unreliable); 279f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT && 280f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 281f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb_irq(skb); 282f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp--; 283f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc I802_DEBUG_INC(local->tx_status_drop); 284f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 285f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_schedule(&local->tasklet); 286f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 287f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status_irqsafe); 288f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 289f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_tasklet_handler(unsigned long data) 290f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 291f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = (struct ieee80211_local *) data; 292f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 293f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_rx_status rx_status; 294eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky struct ieee80211_ra_tid *ra_tid; 295f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 296f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while ((skb = skb_dequeue(&local->skb_queue)) || 297f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 298f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc switch (skb->pkt_type) { 299f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_RX_MSG: 300f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* status is in skb->cb */ 301f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memcpy(&rx_status, skb->cb, sizeof(rx_status)); 30251fb61e76d952e6bc2fbdd9f0d38425fbab1cf31Johannes Berg /* Clear skb->pkt_type in order to not confuse kernel 303f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * netstack. */ 304f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 305f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc __ieee80211_rx(local_to_hw(local), skb, &rx_status); 306f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 307f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_TX_STATUS_MSG: 308f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 309e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_tx_status(local_to_hw(local), skb); 310f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 311eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_DELBA_MSG: 312eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 313eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_stop_tx_ba_cb(local_to_hw(local), 314eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 315eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 316eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break; 317eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_ADDBA_MSG: 318eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 319eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_start_tx_ba_cb(local_to_hw(local), 320eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 321eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 322eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break ; 323f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg default: 324f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg WARN_ON(1); 325f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 326f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 327f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 328f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 329f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 330f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 331f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to 332f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * make a prepared TX frame (one that has been given to hw) to look like brand 333f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * new IEEE 802.11 frame that is ready to go through TX processing again. 334d0f09804144fd9471a13cf4d80e66842c7fa114fJohannes Berg */ 335f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_remove_tx_extra(struct ieee80211_local *local, 336f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_key *key, 337e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 338f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 33962bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison unsigned int hdrlen, iv_len, mic_len; 34062bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 341f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 34262bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdrlen = ieee80211_hdrlen(hdr->frame_control); 343f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 344f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!key) 345f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto no_key; 346f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 3478f20fc24986a083228823d9b68adca20714b254eJohannes Berg switch (key->conf.alg) { 348f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_WEP: 349f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = WEP_IV_LEN; 350f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = WEP_ICV_LEN; 351f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 352f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_TKIP: 353f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = TKIP_IV_LEN; 354f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = TKIP_ICV_LEN; 355f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 356f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case ALG_CCMP: 357f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc iv_len = CCMP_HDR_LEN; 358f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc mic_len = CCMP_MIC_LEN; 359f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 360f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc default: 361f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto no_key; 362f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 363f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 36462bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (skb->len >= hdrlen + mic_len && 36511a843b7e16062389c53ba393c7913956e034eb2Johannes Berg !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 366f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_trim(skb, skb->len - mic_len); 36762bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (skb->len >= hdrlen + iv_len) { 368f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memmove(skb->data + iv_len, skb->data, hdrlen); 36962bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdr = (struct ieee80211_hdr *)skb_pull(skb, iv_len); 370f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 371f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 372f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencno_key: 37362bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison if (ieee80211_is_data_qos(hdr->frame_control)) { 37462bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA); 37562bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison memmove(skb->data + IEEE80211_QOS_CTL_LEN, skb->data, 37662bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison hdrlen - IEEE80211_QOS_CTL_LEN); 37762bf1d762e24006fa9b6c8d56a22cf47a2310af3Harvey Harrison skb_pull(skb, IEEE80211_QOS_CTL_LEN); 378f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 379f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 380f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 381d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Bergstatic void ieee80211_handle_filtered_frame(struct ieee80211_local *local, 382d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg struct sta_info *sta, 383e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 384d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg{ 385e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 386e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg 387d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg sta->tx_filtered_count++; 388d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 389d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 390d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Clear the TX filter mask for this STA when sending the next 391d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * packet. If the STA went to power save mode, this will happen 392f6d97104890203ba9c2cf8e34894c4c8e64cb880Yi Zhu * when it wakes up for the next time. 393d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 39407346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT); 395d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 396d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 397d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This code races in the following way: 398d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 399d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (1) STA sends frame indicating it will go to sleep and does so 400d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (2) hardware/firmware adds STA to filter list, passes frame up 401d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (3) hardware/firmware processes TX fifo and suppresses a frame 402d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (4) we get TX status before having processed the frame and 403d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * knowing that the STA has gone to sleep. 404d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 405d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This is actually quite unlikely even when both those events are 406d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * processed from interrupts coming in quickly after one another or 407d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * even at the same time because we queue both TX status events and 408d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * RX frames to be processed by a tasklet and process them in the 409d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * same order that they were received or TX status last. Hence, there 410d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * is no race as long as the frame RX is processed before the next TX 411d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * status, which drivers can ensure, see below. 412d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 413d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Note that this can only happen if the hardware or firmware can 414d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * actually add STAs to the filter list, if this is done by the 415d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * driver in response to set_tim() (which will only reduce the race 416d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this whole filtering tries to solve, not completely solve it) 417d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this situation cannot happen. 418d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 419d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * To completely solve this race drivers need to make sure that they 420d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (a) don't mix the irq-safe/not irq-safe TX status/RX processing 421d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * functions and 422d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (b) always process RX events before TX status events if ordering 423d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * can be unknown, for example with different interrupt status 424d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * bits. 425d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 42607346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg if (test_sta_flags(sta, WLAN_STA_PS) && 427d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) { 428e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_remove_tx_extra(local, sta->key, skb); 429d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_tail(&sta->tx_filtered, skb); 430d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 431d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 432d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 43307346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg if (!test_sta_flags(sta, WLAN_STA_PS) && 434e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg !(info->flags & IEEE80211_TX_CTL_REQUEUE)) { 435d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* Software retry the packet once */ 436e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg info->flags |= IEEE80211_TX_CTL_REQUEUE; 437e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_remove_tx_extra(local, sta->key, skb); 438d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_queue_xmit(skb); 439d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 440d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 441d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 442f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#ifdef CONFIG_MAC80211_VERBOSE_DEBUG 443d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg if (net_ratelimit()) 444d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg printk(KERN_DEBUG "%s: dropped TX filtered frame, " 445d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg "queue_len=%d PS=%d @%lu\n", 446d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg wiphy_name(local->hw.wiphy), 447d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered), 44807346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg !!test_sta_flags(sta, WLAN_STA_PS), jiffies); 449f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#endif 450d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_kfree_skb(skb); 451d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg} 452d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 453e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Bergvoid ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 454f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 455f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb2; 456f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; 457f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 458e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 459f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc u16 frag, type; 460429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky __le16 fc; 4614b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg struct ieee80211_supported_band *sband; 462b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_tx_status_rtap_hdr *rthdr; 463b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_sub_if_data *sdata; 4643d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu struct net_device *prev_dev = NULL; 465429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky struct sta_info *sta; 466f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 467d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_lock(); 468d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 46995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta = sta_info_get(local, hdr->addr1); 47095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 47195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (sta) { 47295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->status.excessive_retries && 47395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg test_sta_flags(sta, WLAN_STA_PS)) { 47495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg /* 47595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * The STA is in power save mode, so assume 47695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * that this TX packet failed because of that. 47795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg */ 47895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 47995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg rcu_read_unlock(); 48095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg return; 481f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 482f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 48395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg fc = hdr->frame_control; 48495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 48595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) && 48695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg (ieee80211_is_data_qos(fc))) { 48795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u16 tid, ssn; 48895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u8 *qc; 489429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 490429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky qc = ieee80211_get_qos_ctl(hdr); 491429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid = qc[0] & 0xf; 492429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10) 493429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky & IEEE80211_SCTL_SEQ); 494f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene ieee80211_send_bar(sta->sdata, hdr->addr1, 495429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid, ssn); 496429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky } 497429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 49895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) { 499e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 500d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 501f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 50295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } else { 50395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->status.excessive_retries) 50495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta->tx_retry_failed++; 50595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta->tx_retry_count += info->status.retry_count; 506f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 50795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 5084b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg sband = local->hw.wiphy->bands[info->band]; 5094b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg rate_control_tx_status(local, sband, sta, skb); 51095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } 511f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 512d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 513d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 514f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_tx(local, 0); 515f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 516f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* SNMP counters 517f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Fragments are passed to low-level drivers as separate skbs, so these 518f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * are actually fragments, not frames. Update frame counters only for 519f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the first fragment of the frame. */ 520f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 521f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; 522f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE; 523f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 524e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->flags & IEEE80211_TX_STAT_ACK) { 525f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) { 526f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFrameCount++; 527f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (is_multicast_ether_addr(hdr->addr1)) 528f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MulticastTransmittedFrameCount++; 529e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->status.retry_count > 0) 530f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11RetryCount++; 531e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->status.retry_count > 1) 532f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MultipleRetryCount++; 533f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 534f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 535f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* This counter shall be incremented for an acknowledged MPDU 536f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with an individual address in the address 1 field or an MPDU 537f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with a multicast address in the address 1 field of type Data 538f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * or Management. */ 539f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!is_multicast_ether_addr(hdr->addr1) || 540f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_DATA || 541f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_MGMT) 542f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFragmentCount++; 543f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } else { 544f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) 545f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11FailedCount++; 546f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 547f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 548b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* this was a transmitted frame, but now we want to reuse it */ 549b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_orphan(skb); 550b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 5513d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* 5523d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * This is a bit racy but we can avoid a lot of work 5533d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * with this test... 5543d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu */ 5553d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (!local->monitors && !local->cooked_mntrs) { 556f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 557f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 558f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 559f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 560b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* send frame to monitor interfaces now */ 561f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 562b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (skb_headroom(skb) < sizeof(*rthdr)) { 563b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); 564f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 565f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 566f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 567f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 568988c0f723d0b1abb399e6e71d8bf3f8bf1949a70Johannes Berg rthdr = (struct ieee80211_tx_status_rtap_hdr *) 569b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_push(skb, sizeof(*rthdr)); 570b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 571b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg memset(rthdr, 0, sizeof(*rthdr)); 572b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); 573b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_present = 574b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | 575b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); 576b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 577e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 578b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg !is_multicast_ether_addr(hdr->addr1)) 579b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); 580b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 581e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) && 582e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) 583b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); 584e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg else if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) 585b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); 586b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 587e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg rthdr->data_retries = info->status.retry_count; 588b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 5893d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* XXX: is this sufficient for BPF? */ 5903d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb_set_mac_header(skb, 0); 5913d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->ip_summed = CHECKSUM_UNNECESSARY; 5923d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->pkt_type = PACKET_OTHERHOST; 5933d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->protocol = htons(ETH_P_802_2); 5943d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu memset(skb->cb, 0, sizeof(skb->cb)); 5953d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 59679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_lock(); 59779010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 59805c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 599b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (!netif_running(sdata->dev)) 600b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg continue; 6013d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 6023d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 60379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg skb2 = skb_clone(skb, GFP_ATOMIC); 6043d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (skb2) { 6053d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb2->dev = prev_dev; 6063d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb2); 6073d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 6083d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 6093d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 6103d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu prev_dev = sdata->dev; 611b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 612b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 6133d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 6143d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->dev = prev_dev; 6153d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb); 6163d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb = NULL; 6173d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 61879010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_unlock(); 6193d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu dev_kfree_skb(skb); 620f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 621f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status); 622f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 623f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstruct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, 624f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc const struct ieee80211_ops *ops) 625f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 626f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local; 627f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int priv_size; 628f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct wiphy *wiphy; 629f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 630f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* Ensure 32-byte alignment of our private data and hw private data. 631f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * We use the wiphy priv data for both our ieee80211_local and for 632f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the driver's private data 633f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 634f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * In memory it'll be like this: 635f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 636f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 637f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct wiphy | 638f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 639f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct ieee80211_local | 640f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 641f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | driver's private data | 642f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 643f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 644f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 645f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc priv_size = ((sizeof(struct ieee80211_local) + 646f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) + 647f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc priv_data_len; 648f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 649f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy = wiphy_new(&mac80211_config_ops, priv_size); 650f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 651f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!wiphy) 652f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return NULL; 653f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 654f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy->privid = mac80211_wiphy_privid; 655f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 656f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local = wiphy_priv(wiphy); 657f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.wiphy = wiphy; 658f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 659f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.priv = (char *)local + 660f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ((sizeof(struct ieee80211_local) + 661f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); 662f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6634480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->tx); 6644150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->start); 6654150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->stop); 6664480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->config); 6674480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->add_interface); 6684150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->remove_interface); 6694150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->configure_filter); 670f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->ops = ops; 671f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 672f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.queues = 1; /* default */ 673f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 674f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 675f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 6769124b07740c51cbc6e358dd0c4abc6ee8ded084dJohannes Berg local->hw.conf.long_frame_max_tx_count = 4; 6779124b07740c51cbc6e358dd0c4abc6ee8ded084dJohannes Berg local->hw.conf.short_frame_max_tx_count = 7; 678e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.radio_enabled = true; 679f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 68079010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg INIT_LIST_HEAD(&local->interfaces); 681f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 682b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg spin_lock_init(&local->key_lock); 683b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg 684c2b13452b283f9c4a5b02a6b53ed6416ebf4c03cJohannes Berg INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); 685f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 686f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_init(local); 687f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 688f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, 689f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long)local); 690f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tx_pending_tasklet); 691f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 692f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tasklet, 693f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_tasklet_handler, 694f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long) local); 695f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tasklet); 696f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 697f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue); 698f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue_unreliable); 699f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 700f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return local_to_hw(local); 701f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 702f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_alloc_hw); 703f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 704f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencint ieee80211_register_hw(struct ieee80211_hw *hw) 705f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 706f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 707f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc const char *name; 708f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int result; 7098318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg enum ieee80211_band band; 71096d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg struct net_device *mdev; 711133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg struct ieee80211_master_priv *mpriv; 7128318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 7138318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* 7148318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * generic code guarantees at least one band, 7158318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * set this very early because much code assumes 7168318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * that hw.conf.channel is assigned 7178318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg */ 7188318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 7198318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg struct ieee80211_supported_band *sband; 7208318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 7218318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg sband = local->hw.wiphy->bands[band]; 7228318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg if (sband) { 7238318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* init channel we're on */ 7248318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->hw.conf.channel = 7258318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->oper_channel = 7268318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->scan_channel = &sband->channels[0]; 7278318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg break; 7288318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 7298318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 730f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 731f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* if low-level driver supports AP, we also support VLAN */ 732f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) 733f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); 734f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 735f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* mac80211 always supports monitor */ 736f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); 737f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 738f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = wiphy_register(local->hw.wiphy); 739f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 740f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return result; 741f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 742e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg /* 743e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * We use the number of queues for feature tests (QoS, HT) internally 744e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * so restrict them appropriately. 745e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg */ 746e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->queues > IEEE80211_MAX_QUEUES) 747e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->queues = IEEE80211_MAX_QUEUES; 748e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->ampdu_queues > IEEE80211_MAX_AMPDU_QUEUES) 749e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->ampdu_queues = IEEE80211_MAX_AMPDU_QUEUES; 750e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->queues < 4) 751e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->ampdu_queues = 0; 752e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg 753133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv), 754e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg "wmaster%d", ether_setup, 755e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg ieee80211_num_queues(hw)); 75696d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg if (!mdev) 75796d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg goto fail_mdev_alloc; 75896d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 759133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mpriv = netdev_priv(mdev); 760133b822638ff01eb1e32e1917b197c40ed095dddJohannes Berg mpriv->local = local; 76196d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg local->mdev = mdev; 76296d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 7633e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg ieee80211_rx_bss_list_init(local); 76496d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 76596d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->hard_start_xmit = ieee80211_master_start_xmit; 76696d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->open = ieee80211_master_open; 76796d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->stop = ieee80211_master_stop; 76896d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->type = ARPHRD_IEEE80211; 76996d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->header_ops = &ieee80211_header_ops; 77096d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg mdev->set_multicast_list = ieee80211_master_set_multicast_list; 77196d510566e4908f77f03ff1436c78ae7162a17d0Johannes Berg 772f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc name = wiphy_dev(local->hw.wiphy)->driver->name; 77359959a6150c8af737898e83f727e824dbed7b0faJohannes Berg local->hw.workqueue = create_freezeable_workqueue(name); 774f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!local->hw.workqueue) { 775f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = -ENOMEM; 776f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_workqueue; 777f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 778f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 779b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* 780b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * The hardware needs headroom for sending the frame, 781b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * and we need some headroom for passing the frame to monitor 782b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * interfaces, but never both at the same time. 783b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 78433ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, 78533ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc sizeof(struct ieee80211_tx_status_rtap_hdr)); 786b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 787e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_add(local); 788e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 789dc0ae30c31ee6ef83992bb692f37dfbba08a2ef6Tomas Winkler if (local->hw.conf.beacon_int < 10) 790dc0ae30c31ee6ef83992bb692f37dfbba08a2ef6Tomas Winkler local->hw.conf.beacon_int = 100; 791f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 792ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler if (local->hw.max_listen_interval == 0) 793ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.max_listen_interval = 1; 794ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 795ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.conf.listen_interval = local->hw.max_listen_interval; 796ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 797566bfe5a8bcde13188a356f77666f8115813cf31Bruno Randolf local->wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC | 798566bfe5a8bcde13188a356f77666f8115813cf31Bruno Randolf IEEE80211_HW_SIGNAL_DB | 799566bfe5a8bcde13188a356f77666f8115813cf31Bruno Randolf IEEE80211_HW_SIGNAL_DBM) ? 800f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID; 801566bfe5a8bcde13188a356f77666f8115813cf31Bruno Randolf local->wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ? 802f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID; 803566bfe5a8bcde13188a356f77666f8115813cf31Bruno Randolf if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) 804f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->wstats_flags |= IW_QUAL_DBM; 805f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 806f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = sta_info_start(local); 807f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 808f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_sta_info; 809f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 810f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 811f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = dev_alloc_name(local->mdev, local->mdev->name); 812f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 813f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_dev; 814f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 815f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); 816f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy)); 817f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 818f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = register_netdevice(local->mdev); 819f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 820f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_dev; 821f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 822830f903866a1611e9ce53f3e35202302bb938946Johannes Berg result = ieee80211_init_rate_ctrl_alg(local, 823830f903866a1611e9ce53f3e35202302bb938946Johannes Berg hw->rate_control_algorithm); 824f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 825f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_DEBUG "%s: Failed to initialize rate control " 826dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg "algorithm\n", wiphy_name(local->hw.wiphy)); 827f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_rate; 828f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 829f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 830f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = ieee80211_wep_init(local); 831f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 832f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 833023a04bebe7030c1e6d5347bd3f27a3e49a1f222Jeremy Fitzhardinge printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n", 834023a04bebe7030c1e6d5347bd3f27a3e49a1f222Jeremy Fitzhardinge wiphy_name(local->hw.wiphy), result); 835f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_wep; 836f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 837f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 83851cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller local->mdev->select_queue = ieee80211_select_queue; 839f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 840f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* add one default STA interface */ 8413e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg result = ieee80211_if_add(local, "wlan%d", NULL, 84205c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg NL80211_IFTYPE_STATION, NULL); 843f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result) 844f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_WARNING "%s: Failed to add default virtual iface\n", 845dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg wiphy_name(local->hw.wiphy)); 846f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 847f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 848f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 849f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_init(local); 850f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 851f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 852f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 853f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencfail_wep: 854f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 855f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencfail_rate: 856f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc unregister_netdevice(local->mdev); 857339a7c41c913035bf58579f6e47b4ba29da83795Pavel Emelyanov local->mdev = NULL; 858f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencfail_dev: 859f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 860f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 861f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencfail_sta_info: 862e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 863f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 864f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencfail_workqueue: 8653e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg if (local->mdev) 8663e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg free_netdev(local->mdev); 86796d510566e4908f77f03ff1436c78ae7162a17d0Johannes Bergfail_mdev_alloc: 868f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 869f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return result; 870f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 871f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_register_hw); 872f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 873f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_unregister_hw(struct ieee80211_hw *hw) 874f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 875f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 876f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 877f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tx_pending_tasklet); 878f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tasklet); 879f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 880f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 881f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 88279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* 88379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * At this point, interface list manipulations are fine 88479010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * because the driver cannot be handing us frames any 88579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * more and the tasklet is killed. 88679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg */ 8875b2812e925c8e976852867f8d760637c5926d817Johannes Berg 88875636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg /* First, we remove all virtual interfaces. */ 88975636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg ieee80211_remove_interfaces(local); 8905b2812e925c8e976852867f8d760637c5926d817Johannes Berg 8915b2812e925c8e976852867f8d760637c5926d817Johannes Berg /* then, finally, remove the master interface */ 8923e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg unregister_netdevice(local->mdev); 893f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 894f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 895f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8963e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg ieee80211_rx_bss_list_deinit(local); 897f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_clear_tx_pending(local); 898f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 899f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 900e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 901f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 902f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (skb_queue_len(&local->skb_queue) 903f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc || skb_queue_len(&local->skb_queue_unreliable)) 904f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_WARNING "%s: skb_queue not empty\n", 905dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg wiphy_name(local->hw.wiphy)); 906f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue); 907f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue_unreliable); 908f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 909f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 910f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 911f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_wep_free(local); 912f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_exit(local); 9133e122be089e6fb8d3f322416da4cdbb80ce12927Johannes Berg free_netdev(local->mdev); 914f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 915f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_unregister_hw); 916f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 917f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_free_hw(struct ieee80211_hw *hw) 918f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 919f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 920f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 921f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_free(local->hw.wiphy); 922f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 923f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_free_hw); 924f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 925f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic int __init ieee80211_init(void) 926f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 927f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 928f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int ret; 929f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 930e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); 931e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + 932c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); 933f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 934cccf129f820e431d84690729254a32f1709328fbFelix Fietkau ret = rc80211_minstrel_init(); 935cccf129f820e431d84690729254a32f1709328fbFelix Fietkau if (ret) 936cccf129f820e431d84690729254a32f1709328fbFelix Fietkau return ret; 937cccf129f820e431d84690729254a32f1709328fbFelix Fietkau 9384b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg ret = rc80211_pid_init(); 939ad01837593338f13508463fa11c8dbf8109a1e5dMattias Nissler if (ret) 94051cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller return ret; 941f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 942e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_init(); 943e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 944f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 945f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 946f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 947f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void __exit ieee80211_exit(void) 948f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 9494b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg rc80211_pid_exit(); 950cccf129f820e431d84690729254a32f1709328fbFelix Fietkau rc80211_minstrel_exit(); 951ac71c691e6a5ce991fe221d3bdb0c972f617aa37Johannes Berg 9523b96766f0e643f52ae19e134664df6730c737e87Johannes Berg /* 9533b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * For key todo, it'll be empty by now but the work 9543b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * might still be scheduled. 9553b96766f0e643f52ae19e134664df6730c737e87Johannes Berg */ 9563b96766f0e643f52ae19e134664df6730c737e87Johannes Berg flush_scheduled_work(); 9573b96766f0e643f52ae19e134664df6730c737e87Johannes Berg 958f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo if (mesh_allocated) 959f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo ieee80211s_stop(); 960902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 961e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_exit(); 962f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 963f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 964f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 965ca9938fea576ebbb8d8c4fbe8a5bcc937e49e1caJohannes Bergsubsys_initcall(ieee80211_init); 966f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencmodule_exit(ieee80211_exit); 967f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 968f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_DESCRIPTION("IEEE 802.11 subsystem"); 969f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_LICENSE("GPL"); 970