main.c revision 3ac64beecd27400d12cc7afb4108eef26c499f6a
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> 2410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg#include <linux/pm_qos_params.h> 25881d966b48b035ab3f3aeaae0f3d3f9b584f45b2Eric W. Biederman#include <net/net_namespace.h> 26f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include <net/cfg80211.h> 27f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 28f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "ieee80211_i.h" 292448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg#include "driver-ops.h" 302c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "rate.h" 31f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo#include "mesh.h" 32f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wep.h" 33f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "wme.h" 34f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc#include "aes_ccm.h" 352c8dccc77420fb7433da5674818959d3499d35beJohannes Berg#include "led.h" 36e0eb68596232788bc352368f2fbc3cb088e42e41Michael Wu#include "cfg.h" 37e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs.h" 38e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc#include "debugfs_netdev.h" 39f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 40b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg/* 41b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * For seeing transmitted packets on monitor interfaces 42b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * we have a radiotap header too. 43b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 44b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Bergstruct ieee80211_tx_status_rtap_hdr { 45b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_radiotap_header hdr; 46e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg u8 rate; 47e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg u8 padding_for_rate; 48b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg __le16 tx_flags; 49b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg u8 data_retries; 50b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg} __attribute__ ((packed)); 51b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 52f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 530d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergvoid ieee80211_configure_filter(struct ieee80211_local *local) 544150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 553ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg u64 mc; 564150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int changed_flags; 574150c57212ad134765dd78c654a4b9906252b66dJohannes Berg unsigned int new_flags = 0; 584150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 5953918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_promiscs)) 604150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_PROMISC_IN_BSS; 614150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 6253918994b7c8c3bf0af5f641e1f299856799d883Johannes Berg if (atomic_read(&local->iff_allmultis)) 634150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= FIF_ALLMULTI; 644150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 653ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg if (local->monitors || local->scanning) 668cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_BCN_PRBRESP_PROMISC; 678cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 688cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_fcsfail) 698cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_FCSFAIL; 708cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 718cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_plcpfail) 728cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_PLCPFAIL; 738cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 748cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_control) 758cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_CONTROL; 768cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu 778cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu if (local->fif_other_bss) 788cc9a73914b07b5908d8a59320f4557fc9639f2eMichael Wu new_flags |= FIF_OTHER_BSS; 794150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 80e3b90ca28412fb9dcc8c5ca38e179e78fec07eeeIgor Perminov if (local->fif_pspoll) 81e3b90ca28412fb9dcc8c5ca38e179e78fec07eeeIgor Perminov new_flags |= FIF_PSPOLL; 82e3b90ca28412fb9dcc8c5ca38e179e78fec07eeeIgor Perminov 833ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg spin_lock_bh(&local->filter_lock); 844150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags = local->filter_flags ^ new_flags; 854150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 863ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg mc = drv_prepare_multicast(local, local->mc_count, local->mc_list); 873ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg spin_unlock_bh(&local->filter_lock); 883ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg 894150c57212ad134765dd78c654a4b9906252b66dJohannes Berg /* be a bit nasty */ 904150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= (1<<31); 914150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 923ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg drv_configure_filter(local, changed_flags, &new_flags, mc); 934150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 944150c57212ad134765dd78c654a4b9906252b66dJohannes Berg WARN_ON(new_flags & (1<<31)); 954150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 964150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->filter_flags = new_flags & ~(1<<31); 974150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 984150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 993ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Bergstatic void ieee80211_reconfig_filter(struct work_struct *work) 1003ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg{ 1013ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg struct ieee80211_local *local = 1023ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg container_of(work, struct ieee80211_local, reconfig_filter); 1033ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg 1043ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg ieee80211_configure_filter(local); 1053ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg} 1063ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg 107e8975581f63870be42ff4662b293d1b0c8c21350Johannes Bergint ieee80211_hw_config(struct ieee80211_local *local, u32 changed) 108b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 10958905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg struct ieee80211_channel *chan, *scan_chan; 110b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int ret = 0; 111e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg int power; 112094d05dc32fc2930e381189a942016e5561775d9Sujith enum nl80211_channel_type channel_type; 113f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 114cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg might_sleep(); 115cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg 11658905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg scan_chan = local->scan_channel; 11758905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg 11858905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg if (scan_chan) { 11958905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg chan = scan_chan; 120094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = NL80211_CHAN_NO_HT; 12172bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } else { 122b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->oper_channel; 123094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = local->oper_channel_type; 12472bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } 125f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 12672bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen if (chan != local->hw.conf.channel || 1274797938c5dfa22af30fd16679192972f878419a1Johannes Berg channel_type != local->hw.conf.channel_type) { 128e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.channel = chan; 1294797938c5dfa22af30fd16679192972f878419a1Johannes Berg local->hw.conf.channel_type = channel_type; 130e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_CHANNEL; 131e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 1328318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 13358905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg if (scan_chan) 134e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg power = chan->max_power; 1358318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg else 136a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = local->power_constr_level ? 137a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan (chan->max_power - local->power_constr_level) : 138a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan chan->max_power; 139a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 14047afbaf5af9454a7a1a64591e20cbfcc27ca67a8Johannes Berg if (local->user_power_level >= 0) 141a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = min(power, local->user_power_level); 142a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 143e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (local->hw.conf.power_level != power) { 144e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_POWER; 145e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.power_level = power; 146e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 147b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 148e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (changed && local->open_count) { 1492448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg ret = drv_config(local, changed); 150d73782fdde76554016abf73b46f843b29f520848Johannes Berg /* 151447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Goal: 152d73782fdde76554016abf73b46f843b29f520848Johannes Berg * HW reconfiguration should never fail, the driver has told 153d73782fdde76554016abf73b46f843b29f520848Johannes Berg * us what it can support so it should live up to that promise. 154447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 155447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Current status: 156447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * rfkill is not integrated with mac80211 and a 157447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * configuration command can thus fail if hardware rfkill 158447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * is enabled 159447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 160447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * FIXME: integrate rfkill with mac80211 and then add this 161447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * WARN_ON() back 162447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 163d73782fdde76554016abf73b46f843b29f520848Johannes Berg */ 164447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre /* WARN_ON(ret); */ 165d73782fdde76554016abf73b46f843b29f520848Johannes Berg } 166f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 167b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return ret; 168b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 169f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 170471b3efdfccc257591331724145f8ccf8b3217e1Johannes Bergvoid ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 171471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg u32 changed) 172d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 173471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg struct ieee80211_local *local = sdata->local; 1749cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg static const u8 zero[ETH_ALEN] = { 0 }; 175471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 176471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (!changed) 177471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg return; 178471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 1799cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) { 1809cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg /* 1819cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * While not associated, claim a BSSID of all-zeroes 1829cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * so that drivers don't do any weird things with the 1839cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * BSSID at that time. 1849cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg */ 1859cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg if (sdata->vif.bss_conf.assoc) 1869cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; 1879cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg else 1889cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg sdata->vif.bss_conf.bssid = zero; 1899cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 1902d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; 1912d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg else if (sdata->vif.type == NL80211_IFTYPE_AP) 1922d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = sdata->dev->dev_addr; 1932d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg else if (ieee80211_vif_is_mesh(&sdata->vif)) { 1942d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = zero; 1952d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } else { 1962d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg WARN_ON(1); 1972d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg return; 1982d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 1992d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 2002d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg switch (sdata->vif.type) { 2012d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_AP: 2022d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_ADHOC: 2032d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_MESH_POINT: 2042d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2052d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg default: 2062d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* do not warn to simplify caller in scan.c */ 2072d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg changed &= ~BSS_CHANGED_BEACON_ENABLED; 2082d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg if (WARN_ON(changed & BSS_CHANGED_BEACON)) 2092d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg return; 2102d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2112d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2122d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 2132d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg if (changed & BSS_CHANGED_BEACON_ENABLED) { 21497af743207466ff8b477e14bfb7af0ba2c93375bBob Copeland if (local->quiescing || !netif_running(sdata->dev) || 21597af743207466ff8b477e14bfb7af0ba2c93375bBob Copeland test_bit(SCAN_SW_SCANNING, &local->scanning)) { 2162d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = false; 2172d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } else { 2182d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* 2192d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg * Beacon should be enabled, but AP mode must 2202d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg * check whether there is a beacon configured. 2212d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg */ 2222d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg switch (sdata->vif.type) { 2232d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_AP: 2242d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = 2252d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg !!rcu_dereference(sdata->u.ap.beacon); 2262d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2272d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_ADHOC: 2282d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = 2292d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg !!rcu_dereference(sdata->u.ibss.presp); 2302d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2312d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_MESH_POINT: 2322d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = true; 2332d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2342d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg default: 2352d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* not reached */ 2362d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg WARN_ON(1); 2372d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2382d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2392d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2402d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2412d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 2422448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg drv_bss_info_changed(local, &sdata->vif, 2432448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg &sdata->vif.bss_conf, changed); 24457c4d7b4c4986037be51476b8e3025d5ba18d8b8Johannes Berg 245e535c7566e1318ccfa015e297f0309994f7bc078Johannes Berg /* DEPRECATED */ 246e535c7566e1318ccfa015e297f0309994f7bc078Johannes Berg local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int; 247d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 248d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 249f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneu32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) 250d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 251bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_cts_prot = false; 252bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_preamble = false; 253bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_slot = false; 2547a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg return BSS_CHANGED_ERP_CTS_PROT | 2557a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2567a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_SLOT; 257d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 258d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 259f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, 260e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 261f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 262f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 263e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 264f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int tmp; 265f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 266f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = IEEE80211_TX_STATUS_MSG; 267e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ? 268f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc &local->skb_queue : &local->skb_queue_unreliable, skb); 269f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp = skb_queue_len(&local->skb_queue) + 270f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_len(&local->skb_queue_unreliable); 271f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT && 272f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 273f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb_irq(skb); 274f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp--; 275f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc I802_DEBUG_INC(local->tx_status_drop); 276f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 277f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_schedule(&local->tasklet); 278f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 279f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status_irqsafe); 280f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 281f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_tasklet_handler(unsigned long data) 282f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 283f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = (struct ieee80211_local *) data; 284f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 285eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky struct ieee80211_ra_tid *ra_tid; 286f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 287f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while ((skb = skb_dequeue(&local->skb_queue)) || 288f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 289f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc switch (skb->pkt_type) { 290f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_RX_MSG: 29151fb61e76d952e6bc2fbdd9f0d38425fbab1cf31Johannes Berg /* Clear skb->pkt_type in order to not confuse kernel 292f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * netstack. */ 293f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 294f1d58c2521eb160178b2151d6326d8dc5d7c8560Johannes Berg ieee80211_rx(local_to_hw(local), skb); 295f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 296f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_TX_STATUS_MSG: 297f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 298e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_tx_status(local_to_hw(local), skb); 299f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 300eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_DELBA_MSG: 301eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 302eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_stop_tx_ba_cb(local_to_hw(local), 303eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 304eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 305eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break; 306eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_ADDBA_MSG: 307eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 308eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_start_tx_ba_cb(local_to_hw(local), 309eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 310eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 311eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break ; 312f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg default: 3135e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger WARN(1, "mac80211: Packet is of unknown type %d\n", 3145e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger skb->pkt_type); 315f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 316f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 317f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 318f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 319f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 320f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 321d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Bergstatic void ieee80211_handle_filtered_frame(struct ieee80211_local *local, 322d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg struct sta_info *sta, 323e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 324d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg{ 3258f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 3268f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg 3274da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg /* 3284da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * XXX: This is temporary! 3294da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * 3304da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * The problem here is that when we get here, the driver will 3314da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * quite likely have pretty much overwritten info->control by 3324da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * using info->driver_data or info->rate_driver_data. Thus, 3334da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * when passing out the frame to the driver again, we would be 3344da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * passing completely bogus data since the driver would then 3354da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * expect a properly filled info->control. In mac80211 itself 3364da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * the same problem occurs, since we need info->control.vif 3374da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * internally. 3384da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * 3394da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * To fix this, we should send the frame through TX processing 3404da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * again. However, it's not that simple, since the frame will 3414da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * have been software-encrypted (if applicable) already, and 3424da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * encrypting it again doesn't do much good. So to properly do 3434da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * that, we not only have to skip the actual 'raw' encryption 3444da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * (key selection etc. still has to be done!) but also the 3454da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * sequence number assignment since that impacts the crypto 3464da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * encapsulation, of course. 3474da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * 3484da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg * Hence, for now, fix the bug by just dropping the frame. 3494da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg */ 3504da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg goto drop; 3514da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg 352d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg sta->tx_filtered_count++; 353d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 354d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 355d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Clear the TX filter mask for this STA when sending the next 356d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * packet. If the STA went to power save mode, this will happen 357f6d97104890203ba9c2cf8e34894c4c8e64cb880Yi Zhu * when it wakes up for the next time. 358d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 35907346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT); 360d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 361d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 362d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This code races in the following way: 363d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 364d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (1) STA sends frame indicating it will go to sleep and does so 365d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (2) hardware/firmware adds STA to filter list, passes frame up 366d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (3) hardware/firmware processes TX fifo and suppresses a frame 367d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (4) we get TX status before having processed the frame and 368d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * knowing that the STA has gone to sleep. 369d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 370d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This is actually quite unlikely even when both those events are 371d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * processed from interrupts coming in quickly after one another or 372d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * even at the same time because we queue both TX status events and 373d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * RX frames to be processed by a tasklet and process them in the 374d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * same order that they were received or TX status last. Hence, there 375d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * is no race as long as the frame RX is processed before the next TX 376d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * status, which drivers can ensure, see below. 377d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 378d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Note that this can only happen if the hardware or firmware can 379d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * actually add STAs to the filter list, if this is done by the 380d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * driver in response to set_tim() (which will only reduce the race 381d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this whole filtering tries to solve, not completely solve it) 382d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this situation cannot happen. 383d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 384d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * To completely solve this race drivers need to make sure that they 385d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (a) don't mix the irq-safe/not irq-safe TX status/RX processing 386d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * functions and 387d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (b) always process RX events before TX status events if ordering 388d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * can be unknown, for example with different interrupt status 389d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * bits. 390d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 39107346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg if (test_sta_flags(sta, WLAN_STA_PS) && 392d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) { 393d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_tail(&sta->tx_filtered, skb); 394d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 395d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 396d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 3978f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg if (!test_sta_flags(sta, WLAN_STA_PS) && 3988f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg !(info->flags & IEEE80211_TX_INTFL_RETRIED)) { 399d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* Software retry the packet once */ 4008f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg info->flags |= IEEE80211_TX_INTFL_RETRIED; 4018f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg ieee80211_add_pending_skb(local, skb); 402d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 403d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 404d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 4054da163ab0a224590f3cae67c1d54ae8c428f6223Johannes Berg drop: 406f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#ifdef CONFIG_MAC80211_VERBOSE_DEBUG 407d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg if (net_ratelimit()) 408d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg printk(KERN_DEBUG "%s: dropped TX filtered frame, " 409d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg "queue_len=%d PS=%d @%lu\n", 410d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg wiphy_name(local->hw.wiphy), 411d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered), 41207346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg !!test_sta_flags(sta, WLAN_STA_PS), jiffies); 413f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#endif 414d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_kfree_skb(skb); 415d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg} 416d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 417e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Bergvoid ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 418f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 419f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb2; 420f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; 421f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 422e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 423f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc u16 frag, type; 424429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky __le16 fc; 4254b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg struct ieee80211_supported_band *sband; 426b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_tx_status_rtap_hdr *rthdr; 427b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_sub_if_data *sdata; 4283d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu struct net_device *prev_dev = NULL; 429429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky struct sta_info *sta; 430e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg int retry_count = -1, i; 431e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 432e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { 433e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* the HW cannot have attempted that rate */ 434e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (i >= hw->max_rates) { 435e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].idx = -1; 436e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].count = 0; 437e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 438e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 439e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count += info->status.rates[i].count; 440e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 441e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count < 0) 442e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count = 0; 443f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 444d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_lock(); 445d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 446e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sband = local->hw.wiphy->bands[info->band]; 447e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 44895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta = sta_info_get(local, hdr->addr1); 44995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 45095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (sta) { 451e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 45295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg test_sta_flags(sta, WLAN_STA_PS)) { 45395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg /* 45495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * The STA is in power save mode, so assume 45595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * that this TX packet failed because of that. 45695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg */ 45795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 45895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg rcu_read_unlock(); 45995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg return; 460f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 461f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 46295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg fc = hdr->frame_control; 46395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 46495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) && 46595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg (ieee80211_is_data_qos(fc))) { 46695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u16 tid, ssn; 46795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u8 *qc; 468429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 469429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky qc = ieee80211_get_qos_ctl(hdr); 470429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid = qc[0] & 0xf; 471429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10) 472429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky & IEEE80211_SCTL_SEQ); 473f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene ieee80211_send_bar(sta->sdata, hdr->addr1, 474429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid, ssn); 475429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky } 476429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 47795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) { 478e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 479d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 480f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 48195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } else { 482e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK)) 48395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta->tx_retry_failed++; 484e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sta->tx_retry_count += retry_count; 485f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 48695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 4874b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg rate_control_tx_status(local, sband, sta, skb); 48895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } 489f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 490d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 491d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 492f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_tx(local, 0); 493f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 494f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* SNMP counters 495f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Fragments are passed to low-level drivers as separate skbs, so these 496f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * are actually fragments, not frames. Update frame counters only for 497f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the first fragment of the frame. */ 498f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 499f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; 500f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE; 501f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 502e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->flags & IEEE80211_TX_STAT_ACK) { 503f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) { 504f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFrameCount++; 505f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (is_multicast_ether_addr(hdr->addr1)) 506f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MulticastTransmittedFrameCount++; 507e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 0) 508f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11RetryCount++; 509e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 1) 510f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MultipleRetryCount++; 511f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 512f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 513f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* This counter shall be incremented for an acknowledged MPDU 514f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with an individual address in the address 1 field or an MPDU 515f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with a multicast address in the address 1 field of type Data 516f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * or Management. */ 517f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!is_multicast_ether_addr(hdr->addr1) || 518f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_DATA || 519f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_MGMT) 520f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFragmentCount++; 521f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } else { 522f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) 523f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11FailedCount++; 524f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 525f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 526b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* this was a transmitted frame, but now we want to reuse it */ 527b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_orphan(skb); 528b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 5293d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* 5303d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * This is a bit racy but we can avoid a lot of work 5313d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * with this test... 5323d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu */ 5333d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (!local->monitors && !local->cooked_mntrs) { 534f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 535f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 536f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 537f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 538b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* send frame to monitor interfaces now */ 539f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 540b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (skb_headroom(skb) < sizeof(*rthdr)) { 541b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); 542f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 543f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 544f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 545f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 546988c0f723d0b1abb399e6e71d8bf3f8bf1949a70Johannes Berg rthdr = (struct ieee80211_tx_status_rtap_hdr *) 547b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_push(skb, sizeof(*rthdr)); 548b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 549b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg memset(rthdr, 0, sizeof(*rthdr)); 550b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); 551b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_present = 552b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | 553e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | 554e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_RATE)); 555b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 556e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 557b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg !is_multicast_ether_addr(hdr->addr1)) 558b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); 559b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 560e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* 561e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * XXX: Once radiotap gets the bitmap reset thing the vendor 562e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * extensions proposal contains, we can actually report 563e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * the whole set of tries we did. 564e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg */ 565e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || 566e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) 567b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); 568e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) 569b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); 570e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (info->status.rates[0].idx >= 0 && 571e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) 572e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->rate = sband->bitrates[ 573e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[0].idx].bitrate / 5; 574b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 575e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* for now report the total retry_count */ 576e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->data_retries = retry_count; 577b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 5783d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* XXX: is this sufficient for BPF? */ 5793d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb_set_mac_header(skb, 0); 5803d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->ip_summed = CHECKSUM_UNNECESSARY; 5813d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->pkt_type = PACKET_OTHERHOST; 5823d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->protocol = htons(ETH_P_802_2); 5833d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu memset(skb->cb, 0, sizeof(skb->cb)); 5843d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 58579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_lock(); 58679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 58705c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 588b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (!netif_running(sdata->dev)) 589b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg continue; 5903d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 5913d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 59279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg skb2 = skb_clone(skb, GFP_ATOMIC); 5933d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (skb2) { 5943d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb2->dev = prev_dev; 5953d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb2); 5963d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 5973d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 5983d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 5993d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu prev_dev = sdata->dev; 600b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 601b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 6023d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 6033d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->dev = prev_dev; 6043d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb); 6053d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb = NULL; 6063d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 60779010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_unlock(); 6083d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu dev_kfree_skb(skb); 609f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 610f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status); 611f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 612f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergstatic void ieee80211_restart_work(struct work_struct *work) 613f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 614f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = 615f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg container_of(work, struct ieee80211_local, restart_work); 616f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 617f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_lock(); 618f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_reconfig(local); 619f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_unlock(); 620f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 621f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 622f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergvoid ieee80211_restart_hw(struct ieee80211_hw *hw) 623f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 624f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 625f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 626f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg /* use this reason, __ieee80211_resume will unblock it */ 627f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_stop_queues_by_reason(hw, 628f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg IEEE80211_QUEUE_STOP_REASON_SUSPEND); 629f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 630f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg schedule_work(&local->restart_work); 631f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 632f2753ddbadb0873a98421415882318251bbd9eaaJohannes BergEXPORT_SYMBOL(ieee80211_restart_hw); 633f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 634f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstruct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, 635f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc const struct ieee80211_ops *ops) 636f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 637f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local; 63896f5e66e8a79810e2982cdcfa28e554f3d97da21Johannes Berg int priv_size, i; 639f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct wiphy *wiphy; 640f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 641f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* Ensure 32-byte alignment of our private data and hw private data. 642f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * We use the wiphy priv data for both our ieee80211_local and for 643f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the driver's private data 644f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 645f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * In memory it'll be like this: 646f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 647f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 648f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct wiphy | 649f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 650f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct ieee80211_local | 651f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 652f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | driver's private data | 653f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 654f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 655f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 6561ce8e7b57b3a4527ef83da1c5c7bd8a6b9d87b56Eric Dumazet priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; 657f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 658f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy = wiphy_new(&mac80211_config_ops, priv_size); 659f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 660f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!wiphy) 661f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return NULL; 662f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 663a272a720660059c30fa038113b77fa2a096437d9Johannes Berg wiphy->netnsok = true; 664f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy->privid = mac80211_wiphy_privid; 66518a8365992a8041aa178ae9ad5f0d951d0457230Johannes Berg 66600d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */ 66700d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg wiphy->bss_priv_size = sizeof(struct ieee80211_bss) - 66800d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg sizeof(struct cfg80211_bss); 669f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 670f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local = wiphy_priv(wiphy); 671de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 672f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.wiphy = wiphy; 673f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6741ce8e7b57b3a4527ef83da1c5c7bd8a6b9d87b56Eric Dumazet local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); 675f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6764480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->tx); 6774150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->start); 6784150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->stop); 6794480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->config); 6804480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->add_interface); 6814150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->remove_interface); 6824150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->configure_filter); 683f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->ops = ops; 684f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 685e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* set up some defaults */ 686e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.queues = 1; 687e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.max_rates = 1; 688b9a5f8cab751d362f7c2d94899ca788c22fcd1efJouni Malinen local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 689b9a5f8cab751d362f7c2d94899ca788c22fcd1efJouni Malinen local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 690e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.radio_enabled = true; 691c428c89201a57a0ce24c37ed79e540d1f4101cf3Johannes Berg local->user_power_level = -1; 692f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 69379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg INIT_LIST_HEAD(&local->interfaces); 694c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_init(&local->iflist_mtx); 695f3b85252f081581a8f257545ed748062dce7798bJohannes Berg mutex_init(&local->scan_mtx); 696f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 697b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg spin_lock_init(&local->key_lock); 6983b8d81e020f77c9da8b85b0685c8cd2ca7c7b150Johannes Berg spin_lock_init(&local->filter_lock); 699ce7c9111a97492d04c504f40736a669c235d664aKalle Valo spin_lock_init(&local->queue_stop_reason_lock); 700ce7c9111a97492d04c504f40736a669c235d664aKalle Valo 701c2b13452b283f9c4a5b02a6b53ed6416ebf4c03cJohannes Berg INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); 702f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 703f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg INIT_WORK(&local->restart_work, ieee80211_restart_work); 704f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 7053ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); 7063ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg 707520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_enable_work, 708520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_enable_work); 709520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_disable_work, 710520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_disable_work); 711520eb82076993b7f55ef9b80771d264272e5127bKalle Valo setup_timer(&local->dynamic_ps_timer, 712520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_timer, (unsigned long) local); 713520eb82076993b7f55ef9b80771d264272e5127bKalle Valo 714f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_init(local); 715f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 7162a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg for (i = 0; i < IEEE80211_MAX_QUEUES; i++) 7172a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg skb_queue_head_init(&local->pending[i]); 718f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, 719f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long)local); 720f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tx_pending_tasklet); 721f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 722f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tasklet, 723f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_tasklet_handler, 724f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long) local); 725f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tasklet); 726f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 727f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue); 728f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue_unreliable); 729f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 730cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg spin_lock_init(&local->ampdu_lock); 731cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg 732f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return local_to_hw(local); 733f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 734f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_alloc_hw); 735f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 736f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencint ieee80211_register_hw(struct ieee80211_hw *hw) 737f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 738f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 739f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int result; 7408318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg enum ieee80211_band band; 741de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg int channels, i, j, max_bitrates; 7425ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg bool supp_ht; 74325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg static const u32 cipher_suites[] = { 74425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP40, 74525e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP104, 74625e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_TKIP, 74725e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_CCMP, 74825e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 74925e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg /* keep last -- depends on hw flags! */ 75025e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_AES_CMAC 75125e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg }; 7528318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 7538318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* 7548318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * generic code guarantees at least one band, 7558318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * set this very early because much code assumes 7568318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * that hw.conf.channel is assigned 7578318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg */ 7582a5193119269062608582418deba7af82844159aJohannes Berg channels = 0; 759de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = 0; 7605ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = false; 7618318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 7628318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg struct ieee80211_supported_band *sband; 7638318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 7648318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg sband = local->hw.wiphy->bands[band]; 765de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!sband) 766de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg continue; 767de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->oper_channel) { 7688318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* init channel we're on */ 7698318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->hw.conf.channel = 77058905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg local->oper_channel = &sband->channels[0]; 77158905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg local->hw.conf.channel_type = NL80211_CHAN_NO_HT; 7728318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 773de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg channels += sband->n_channels; 774de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 775de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (max_bitrates < sband->n_bitrates) 776de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = sband->n_bitrates; 7775ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = supp_ht || sband->ht_cap.ht_supported; 7788318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 779f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 7805ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + 7815ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg sizeof(void *) * channels, GFP_KERNEL); 7825ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg if (!local->int_scan_req) 7832a5193119269062608582418deba7af82844159aJohannes Berg return -ENOMEM; 7842a5193119269062608582418deba7af82844159aJohannes Berg 785f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* if low-level driver supports AP, we also support VLAN */ 786f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) 787f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); 788f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 789f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* mac80211 always supports monitor */ 790f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); 791f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 79277965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) 79377965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 79477965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) 79577965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 79677965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg 797de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 798de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * Calculate scan IE length -- we need this to alloc 799de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * memory and to subtract from the driver limit. It 800de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * includes the (extended) supported rates and HT 801de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * information -- SSID is the driver's responsibility. 802de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 803de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */ 8045ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg if (supp_ht) 8055ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); 806de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 807de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->ops->hw_scan) { 808de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* For hw_scan, driver needs to set these up. */ 809de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ssids = 4; 810de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; 811de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg } 812de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 813de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 814de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * If the driver supports any scan IEs, then assume the 815de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * limit includes the IEs mac80211 will add, otherwise 816de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * leave it at zero and let the driver sort it out; we 817de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * still pass our IEs to the driver but userspace will 818de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * not be allowed to in that case. 819de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 820de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (local->hw.wiphy->max_scan_ie_len) 821de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; 822de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 82325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->cipher_suites = cipher_suites; 82425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 82525e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) 82625e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites--; 82725e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 828f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = wiphy_register(local->hw.wiphy); 829f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 8302a5193119269062608582418deba7af82844159aJohannes Berg goto fail_wiphy_register; 831f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 832e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg /* 833e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * We use the number of queues for feature tests (QoS, HT) internally 834e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * so restrict them appropriately. 835e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg */ 836e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->queues > IEEE80211_MAX_QUEUES) 837e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->queues = IEEE80211_MAX_QUEUES; 838e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg 83942935ecaf4e784d0815afa9a7e5fe7e141157ca3Luis R. Rodriguez local->workqueue = 84030d3ef41b4395d9bee5f481395eef2d3b8b6ee50Bob Copeland create_singlethread_workqueue(wiphy_name(local->hw.wiphy)); 84142935ecaf4e784d0815afa9a7e5fe7e141157ca3Luis R. Rodriguez if (!local->workqueue) { 842f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = -ENOMEM; 843f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_workqueue; 844f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 845f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 846b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* 847b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * The hardware needs headroom for sending the frame, 848b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * and we need some headroom for passing the frame to monitor 849b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * interfaces, but never both at the same time. 850b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 85133ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, 85233ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc sizeof(struct ieee80211_tx_status_rtap_hdr)); 853b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 854e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_add(local); 855e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 856ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler if (local->hw.max_listen_interval == 0) 857ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.max_listen_interval = 1; 858ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 859ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.conf.listen_interval = local->hw.max_listen_interval; 860ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 861f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = sta_info_start(local); 862f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 863f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_sta_info; 864f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 865d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins result = ieee80211_wep_init(local); 866d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins if (result < 0) { 867d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n", 868d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins wiphy_name(local->hw.wiphy), result); 869d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins goto fail_wep; 870d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins } 871d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins 872f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 873f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 874830f903866a1611e9ce53f3e35202302bb938946Johannes Berg result = ieee80211_init_rate_ctrl_alg(local, 875830f903866a1611e9ce53f3e35202302bb938946Johannes Berg hw->rate_control_algorithm); 876f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 877f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_DEBUG "%s: Failed to initialize rate control " 878dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg "algorithm\n", wiphy_name(local->hw.wiphy)); 879f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_rate; 880f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 881f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8828dffff216fcac4f79078478085e86d68db64922eJohannes Berg /* add one default STA interface if supported */ 8838dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { 8848dffff216fcac4f79078478085e86d68db64922eJohannes Berg result = ieee80211_if_add(local, "wlan%d", NULL, 8858dffff216fcac4f79078478085e86d68db64922eJohannes Berg NL80211_IFTYPE_STATION, NULL); 8868dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (result) 8878dffff216fcac4f79078478085e86d68db64922eJohannes Berg printk(KERN_WARNING "%s: Failed to add default virtual iface\n", 8888dffff216fcac4f79078478085e86d68db64922eJohannes Berg wiphy_name(local->hw.wiphy)); 8898dffff216fcac4f79078478085e86d68db64922eJohannes Berg } 890f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 891f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 892f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 893f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_init(local); 894f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8952a5193119269062608582418deba7af82844159aJohannes Berg /* alloc internal scan request */ 8962a5193119269062608582418deba7af82844159aJohannes Berg i = 0; 8975ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg local->int_scan_req->ssids = &local->scan_ssid; 8985ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg local->int_scan_req->n_ssids = 1; 8992a5193119269062608582418deba7af82844159aJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 9002a5193119269062608582418deba7af82844159aJohannes Berg if (!hw->wiphy->bands[band]) 9012a5193119269062608582418deba7af82844159aJohannes Berg continue; 9022a5193119269062608582418deba7af82844159aJohannes Berg for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) { 9035ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg local->int_scan_req->channels[i] = 9042a5193119269062608582418deba7af82844159aJohannes Berg &hw->wiphy->bands[band]->channels[j]; 9052a5193119269062608582418deba7af82844159aJohannes Berg i++; 9062a5193119269062608582418deba7af82844159aJohannes Berg } 9072a5193119269062608582418deba7af82844159aJohannes Berg } 9082a5193119269062608582418deba7af82844159aJohannes Berg 90910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg local->network_latency_notifier.notifier_call = 91010f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_max_network_latency; 91110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, 91210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 91310f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 91410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg if (result) { 91510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg rtnl_lock(); 91610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg goto fail_pm_qos; 91710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg } 91810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 919f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 920f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 92110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_pm_qos: 92210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_led_exit(local); 92310f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_remove_interfaces(local); 92410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_rate: 925f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 926d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins ieee80211_wep_free(local); 927aba7453037c3a90714caae77a622dceaf1173786David S. Miller fail_wep: 928f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 92910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_sta_info: 930e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 93142935ecaf4e784d0815afa9a7e5fe7e141157ca3Luis R. Rodriguez destroy_workqueue(local->workqueue); 93210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_workqueue: 933f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 93410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_wiphy_register: 9355ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg kfree(local->int_scan_req->channels); 936f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return result; 937f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 938f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_register_hw); 939f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 940f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_unregister_hw(struct ieee80211_hw *hw) 941f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 942f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 943f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 944f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tx_pending_tasklet); 945f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tasklet); 946f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 94710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, 94810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 94910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 950f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 951f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 95279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* 95379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * At this point, interface list manipulations are fine 95479010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * because the driver cannot be handing us frames any 95579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * more and the tasklet is killed. 95679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg */ 95775636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg ieee80211_remove_interfaces(local); 9585b2812e925c8e976852867f8d760637c5926d817Johannes Berg 959f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 960f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 9613ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg cancel_work_sync(&local->reconfig_filter); 9623ac64beecd27400d12cc7afb4108eef26c499f6aJohannes Berg 963f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_clear_tx_pending(local); 964f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 965f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 966e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 967f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 968f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (skb_queue_len(&local->skb_queue) 969f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc || skb_queue_len(&local->skb_queue_unreliable)) 970f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_WARNING "%s: skb_queue not empty\n", 971dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg wiphy_name(local->hw.wiphy)); 972f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue); 973f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue_unreliable); 974f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 97542935ecaf4e784d0815afa9a7e5fe7e141157ca3Luis R. Rodriguez destroy_workqueue(local->workqueue); 976f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 977f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_wep_free(local); 978f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_exit(local); 9795ba63533bbf653631faab60f6988506160ec6ba4Johannes Berg kfree(local->int_scan_req); 980f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 981f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_unregister_hw); 982f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 983f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_free_hw(struct ieee80211_hw *hw) 984f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 985f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 986f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 987c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_destroy(&local->iflist_mtx); 988f3b85252f081581a8f257545ed748062dce7798bJohannes Berg mutex_destroy(&local->scan_mtx); 989c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg 990f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_free(local->hw.wiphy); 991f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 992f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_free_hw); 993f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 994f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic int __init ieee80211_init(void) 995f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 996f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 997f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int ret; 998f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 999e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); 1000e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + 1001c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); 1002f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1003cccf129f820e431d84690729254a32f1709328fbFelix Fietkau ret = rc80211_minstrel_init(); 1004cccf129f820e431d84690729254a32f1709328fbFelix Fietkau if (ret) 1005cccf129f820e431d84690729254a32f1709328fbFelix Fietkau return ret; 1006cccf129f820e431d84690729254a32f1709328fbFelix Fietkau 10074b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg ret = rc80211_pid_init(); 1008ad01837593338f13508463fa11c8dbf8109a1e5dMattias Nissler if (ret) 100951cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller return ret; 1010f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1011e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_init(); 1012e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 1013f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 1014f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1015f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1016f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void __exit ieee80211_exit(void) 1017f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 10184b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg rc80211_pid_exit(); 1019cccf129f820e431d84690729254a32f1709328fbFelix Fietkau rc80211_minstrel_exit(); 1020ac71c691e6a5ce991fe221d3bdb0c972f617aa37Johannes Berg 10213b96766f0e643f52ae19e134664df6730c737e87Johannes Berg /* 10223b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * For key todo, it'll be empty by now but the work 10233b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * might still be scheduled. 10243b96766f0e643f52ae19e134664df6730c737e87Johannes Berg */ 10253b96766f0e643f52ae19e134664df6730c737e87Johannes Berg flush_scheduled_work(); 10263b96766f0e643f52ae19e134664df6730c737e87Johannes Berg 1027f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo if (mesh_allocated) 1028f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo ieee80211s_stop(); 1029902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 1030e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_exit(); 1031f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 1032f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1033f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1034ca9938fea576ebbb8d8c4fbe8a5bcc937e49e1caJohannes Bergsubsys_initcall(ieee80211_init); 1035f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencmodule_exit(ieee80211_exit); 1036f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 1037f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_DESCRIPTION("IEEE 802.11 subsystem"); 1038f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_LICENSE("GPL"); 1039