main.c revision 3b8d81e020f77c9da8b85b0685c8cd2ca7c7b150
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 534150c57212ad134765dd78c654a4b9906252b66dJohannes Berg/* must be called under mdev tx lock */ 540d143fe1e2efc084fa730d2dfa22d0d1ca2ee5f1Johannes Bergvoid ieee80211_configure_filter(struct ieee80211_local *local) 554150c57212ad134765dd78c654a4b9906252b66dJohannes Berg{ 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 654150c57212ad134765dd78c654a4b9906252b66dJohannes Berg if (local->monitors) 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 804150c57212ad134765dd78c654a4b9906252b66dJohannes Berg changed_flags = local->filter_flags ^ new_flags; 814150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 824150c57212ad134765dd78c654a4b9906252b66dJohannes Berg /* be a bit nasty */ 834150c57212ad134765dd78c654a4b9906252b66dJohannes Berg new_flags |= (1<<31); 844150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 852448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg drv_configure_filter(local, changed_flags, &new_flags, 863b8d81e020f77c9da8b85b0685c8cd2ca7c7b150Johannes Berg local->mc_count, 873b8d81e020f77c9da8b85b0685c8cd2ca7c7b150Johannes Berg local->mc_list); 884150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 894150c57212ad134765dd78c654a4b9906252b66dJohannes Berg WARN_ON(new_flags & (1<<31)); 904150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 914150c57212ad134765dd78c654a4b9906252b66dJohannes Berg local->filter_flags = new_flags & ~(1<<31); 924150c57212ad134765dd78c654a4b9906252b66dJohannes Berg} 934150c57212ad134765dd78c654a4b9906252b66dJohannes Berg 94e8975581f63870be42ff4662b293d1b0c8c21350Johannes Bergint ieee80211_hw_config(struct ieee80211_local *local, u32 changed) 95b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg{ 9658905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg struct ieee80211_channel *chan, *scan_chan; 97b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg int ret = 0; 98e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg int power; 99094d05dc32fc2930e381189a942016e5561775d9Sujith enum nl80211_channel_type channel_type; 100f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 101cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg might_sleep(); 102cb121bad67a32cde37adc2729b7e18aa4fd3063eJohannes Berg 10358905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg scan_chan = local->scan_channel; 10458905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg 10558905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg if (scan_chan) { 10658905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg chan = scan_chan; 107094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = NL80211_CHAN_NO_HT; 10872bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } else { 109b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg chan = local->oper_channel; 110094d05dc32fc2930e381189a942016e5561775d9Sujith channel_type = local->oper_channel_type; 11172bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen } 112f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 11372bdcf34380917260da41e3c49e10edee04bc5cdJouni Malinen if (chan != local->hw.conf.channel || 1144797938c5dfa22af30fd16679192972f878419a1Johannes Berg channel_type != local->hw.conf.channel_type) { 115e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.channel = chan; 1164797938c5dfa22af30fd16679192972f878419a1Johannes Berg local->hw.conf.channel_type = channel_type; 117e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_CHANNEL; 118e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 1198318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 12058905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg if (scan_chan) 121e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg power = chan->max_power; 1228318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg else 123a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = local->power_constr_level ? 124a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan (chan->max_power - local->power_constr_level) : 125a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan chan->max_power; 126a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 12747afbaf5af9454a7a1a64591e20cbfcc27ca67a8Johannes Berg if (local->user_power_level >= 0) 128a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan power = min(power, local->user_power_level); 129a8302de934b5d1897ff146cd0c7ab87d1417c092Vasanthakumar Thiagarajan 130e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (local->hw.conf.power_level != power) { 131e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg changed |= IEEE80211_CONF_CHANGE_POWER; 132e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.power_level = power; 133e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg } 134b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg 135e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg if (changed && local->open_count) { 1362448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg ret = drv_config(local, changed); 137d73782fdde76554016abf73b46f843b29f520848Johannes Berg /* 138447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Goal: 139d73782fdde76554016abf73b46f843b29f520848Johannes Berg * HW reconfiguration should never fail, the driver has told 140d73782fdde76554016abf73b46f843b29f520848Johannes Berg * us what it can support so it should live up to that promise. 141447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 142447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * Current status: 143447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * rfkill is not integrated with mac80211 and a 144447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * configuration command can thus fail if hardware rfkill 145447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * is enabled 146447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 147447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * FIXME: integrate rfkill with mac80211 and then add this 148447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * WARN_ON() back 149447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre * 150d73782fdde76554016abf73b46f843b29f520848Johannes Berg */ 151447107fb32d75425c95a33f58e6b4b760b470092Reinette Chatre /* WARN_ON(ret); */ 152d73782fdde76554016abf73b46f843b29f520848Johannes Berg } 153f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 154b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg return ret; 155b2c258fb11b3fc77a73f8b0453ff1256de812bc6Johannes Berg} 156f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 157471b3efdfccc257591331724145f8ccf8b3217e1Johannes Bergvoid ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 158471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg u32 changed) 159d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 160471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg struct ieee80211_local *local = sdata->local; 1619cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg static const u8 zero[ETH_ALEN] = { 0 }; 162471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 163471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg if (!changed) 164471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg return; 165471b3efdfccc257591331724145f8ccf8b3217e1Johannes Berg 1669cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_STATION) { 1679cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg /* 1689cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * While not associated, claim a BSSID of all-zeroes 1699cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * so that drivers don't do any weird things with the 1709cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg * BSSID at that time. 1719cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg */ 1729cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg if (sdata->vif.bss_conf.assoc) 1739cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; 1749cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg else 1759cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg sdata->vif.bss_conf.bssid = zero; 1769cef873798dfcdc10ff40b02abf1de935ceeba85Johannes Berg } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 1772d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; 1782d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg else if (sdata->vif.type == NL80211_IFTYPE_AP) 1792d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = sdata->dev->dev_addr; 1802d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg else if (ieee80211_vif_is_mesh(&sdata->vif)) { 1812d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.bssid = zero; 1822d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } else { 1832d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg WARN_ON(1); 1842d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg return; 1852d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 1862d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 1872d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg switch (sdata->vif.type) { 1882d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_AP: 1892d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_ADHOC: 1902d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_MESH_POINT: 1912d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 1922d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg default: 1932d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* do not warn to simplify caller in scan.c */ 1942d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg changed &= ~BSS_CHANGED_BEACON_ENABLED; 1952d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg if (WARN_ON(changed & BSS_CHANGED_BEACON)) 1962d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg return; 1972d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 1982d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 1992d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 2002d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg if (changed & BSS_CHANGED_BEACON_ENABLED) { 2012d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg if (local->sw_scanning) { 2022d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = false; 2032d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } else { 2042d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* 2052d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg * Beacon should be enabled, but AP mode must 2062d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg * check whether there is a beacon configured. 2072d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg */ 2082d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg switch (sdata->vif.type) { 2092d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_AP: 2102d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = 2112d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg !!rcu_dereference(sdata->u.ap.beacon); 2122d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2132d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_ADHOC: 2142d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = 2152d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg !!rcu_dereference(sdata->u.ibss.presp); 2162d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2172d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg case NL80211_IFTYPE_MESH_POINT: 2182d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg sdata->vif.bss_conf.enable_beacon = true; 2192d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2202d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg default: 2212d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg /* not reached */ 2222d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg WARN_ON(1); 2232d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg break; 2242d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2252d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2262d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg } 2272d0ddec5b2b859f06116f631fc0ffe94fbceb556Johannes Berg 2282448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg drv_bss_info_changed(local, &sdata->vif, 2292448798133d747ad339e57099e32a1d1e68aca1cJohannes Berg &sdata->vif.bss_conf, changed); 23057c4d7b4c4986037be51476b8e3025d5ba18d8b8Johannes Berg 231e535c7566e1318ccfa015e297f0309994f7bc078Johannes Berg /* DEPRECATED */ 232e535c7566e1318ccfa015e297f0309994f7bc078Johannes Berg local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int; 233d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 234d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 235f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greeneu32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) 236d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake{ 237bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_cts_prot = false; 238bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_preamble = false; 239bda3933a8aceedd03e0dd410844bd310033ca756Johannes Berg sdata->vif.bss_conf.use_short_slot = false; 2407a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg return BSS_CHANGED_ERP_CTS_PROT | 2417a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_PREAMBLE | 2427a5158ef8da70fdedeb0530faaa8128aa645be3cJohannes Berg BSS_CHANGED_ERP_SLOT; 243d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake} 244d9430a32886f70c0c16d67c525f6cda2df7906eeDaniel Drake 245f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, 246e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 247f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 248f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 249e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 250f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int tmp; 251f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 252f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = IEEE80211_TX_STATUS_MSG; 253e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg skb_queue_tail(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS ? 254f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc &local->skb_queue : &local->skb_queue_unreliable, skb); 255f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp = skb_queue_len(&local->skb_queue) + 256f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_len(&local->skb_queue_unreliable); 257f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT && 258f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 259f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb_irq(skb); 260f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tmp--; 261f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc I802_DEBUG_INC(local->tx_status_drop); 262f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 263f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_schedule(&local->tasklet); 264f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 265f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status_irqsafe); 266f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 267f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void ieee80211_tasklet_handler(unsigned long data) 268f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 269f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = (struct ieee80211_local *) data; 270f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 271eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky struct ieee80211_ra_tid *ra_tid; 272f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 273f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc while ((skb = skb_dequeue(&local->skb_queue)) || 274f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (skb = skb_dequeue(&local->skb_queue_unreliable))) { 275f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc switch (skb->pkt_type) { 276f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_RX_MSG: 27751fb61e76d952e6bc2fbdd9f0d38425fbab1cf31Johannes Berg /* Clear skb->pkt_type in order to not confuse kernel 278f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * netstack. */ 279f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 280f1d58c2521eb160178b2151d6326d8dc5d7c8560Johannes Berg ieee80211_rx(local_to_hw(local), skb); 281f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 282f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc case IEEE80211_TX_STATUS_MSG: 283f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb->pkt_type = 0; 284e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_tx_status(local_to_hw(local), skb); 285f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 286eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_DELBA_MSG: 287eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 288eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_stop_tx_ba_cb(local_to_hw(local), 289eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 290eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 291eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break; 292eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky case IEEE80211_ADDBA_MSG: 293eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid = (struct ieee80211_ra_tid *) &skb->cb; 294eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ieee80211_start_tx_ba_cb(local_to_hw(local), 295eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky ra_tid->ra, ra_tid->tid); 296eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky dev_kfree_skb(skb); 297eadc8d9e9047266a8914eb2ed4d36e797ce540d1Ron Rindjunsky break ; 298f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg default: 2995e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger WARN(1, "mac80211: Packet is of unknown type %d\n", 3005e3f308997f53d00e8cbebdb89d4f6e347aa963aLarry Finger skb->pkt_type); 301f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 302f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc break; 303f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 304f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 305f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 306f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 307d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Bergstatic void ieee80211_handle_filtered_frame(struct ieee80211_local *local, 308d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg struct sta_info *sta, 309e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct sk_buff *skb) 310d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg{ 3118f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 3128f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg 313d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg sta->tx_filtered_count++; 314d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 315d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 316d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Clear the TX filter mask for this STA when sending the next 317d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * packet. If the STA went to power save mode, this will happen 318f6d97104890203ba9c2cf8e34894c4c8e64cb880Yi Zhu * when it wakes up for the next time. 319d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 32007346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT); 321d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 322d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* 323d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This code races in the following way: 324d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 325d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (1) STA sends frame indicating it will go to sleep and does so 326d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (2) hardware/firmware adds STA to filter list, passes frame up 327d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (3) hardware/firmware processes TX fifo and suppresses a frame 328d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (4) we get TX status before having processed the frame and 329d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * knowing that the STA has gone to sleep. 330d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 331d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * This is actually quite unlikely even when both those events are 332d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * processed from interrupts coming in quickly after one another or 333d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * even at the same time because we queue both TX status events and 334d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * RX frames to be processed by a tasklet and process them in the 335d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * same order that they were received or TX status last. Hence, there 336d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * is no race as long as the frame RX is processed before the next TX 337d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * status, which drivers can ensure, see below. 338d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 339d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * Note that this can only happen if the hardware or firmware can 340d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * actually add STAs to the filter list, if this is done by the 341d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * driver in response to set_tim() (which will only reduce the race 342d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this whole filtering tries to solve, not completely solve it) 343d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * this situation cannot happen. 344d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * 345d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * To completely solve this race drivers need to make sure that they 346d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (a) don't mix the irq-safe/not irq-safe TX status/RX processing 347d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * functions and 348d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * (b) always process RX events before TX status events if ordering 349d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * can be unknown, for example with different interrupt status 350d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg * bits. 351d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg */ 35207346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg if (test_sta_flags(sta, WLAN_STA_PS) && 353d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) { 354d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_tail(&sta->tx_filtered, skb); 355d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 356d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 357d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 3588f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg if (!test_sta_flags(sta, WLAN_STA_PS) && 3598f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg !(info->flags & IEEE80211_TX_INTFL_RETRIED)) { 360d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg /* Software retry the packet once */ 3618f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg info->flags |= IEEE80211_TX_INTFL_RETRIED; 3628f77f3849cc3ae2d6df9301785a3d316ea7d7ee1Johannes Berg ieee80211_add_pending_skb(local, skb); 363d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg return; 364d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg } 365d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 366f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#ifdef CONFIG_MAC80211_VERBOSE_DEBUG 367d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg if (net_ratelimit()) 368d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg printk(KERN_DEBUG "%s: dropped TX filtered frame, " 369d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg "queue_len=%d PS=%d @%lu\n", 370d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg wiphy_name(local->hw.wiphy), 371d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg skb_queue_len(&sta->tx_filtered), 37207346f81e87d6e4cca7ae9adfa711d0c61c87b56Johannes Berg !!test_sta_flags(sta, WLAN_STA_PS), jiffies); 373f4ea83dd743d3e1bec8fdf954ac911c6b12ae87aJohannes Berg#endif 374d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg dev_kfree_skb(skb); 375d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg} 376d46e144b65bf053b25d134ec9f52a38e63e04bb4Johannes Berg 377e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Bergvoid ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 378f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 379f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb2; 380f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; 381f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 382e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 383f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc u16 frag, type; 384429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky __le16 fc; 3854b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg struct ieee80211_supported_band *sband; 386b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_tx_status_rtap_hdr *rthdr; 387b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg struct ieee80211_sub_if_data *sdata; 3883d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu struct net_device *prev_dev = NULL; 389429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky struct sta_info *sta; 390e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg int retry_count = -1, i; 391e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 392e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { 393e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* the HW cannot have attempted that rate */ 394e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (i >= hw->max_rates) { 395e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].idx = -1; 396e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[i].count = 0; 397e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 398e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 399e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count += info->status.rates[i].count; 400e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg } 401e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count < 0) 402e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg retry_count = 0; 403f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 404d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_lock(); 405d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 406e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sband = local->hw.wiphy->bands[info->band]; 407e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg 40895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta = sta_info_get(local, hdr->addr1); 40995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 41095dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (sta) { 411e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 41295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg test_sta_flags(sta, WLAN_STA_PS)) { 41395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg /* 41495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * The STA is in power save mode, so assume 41595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg * that this TX packet failed because of that. 41695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg */ 41795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 41895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg rcu_read_unlock(); 41995dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg return; 420f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 421f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 42295dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg fc = hdr->frame_control; 42395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 42495dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) && 42595dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg (ieee80211_is_data_qos(fc))) { 42695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u16 tid, ssn; 42795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg u8 *qc; 428429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 429429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky qc = ieee80211_get_qos_ctl(hdr); 430429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid = qc[0] & 0xf; 431429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10) 432429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky & IEEE80211_SCTL_SEQ); 433f698d856f65c3fea091cc303a135967965c5b880Jasper Bryant-Greene ieee80211_send_bar(sta->sdata, hdr->addr1, 434429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky tid, ssn); 435429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky } 436429a380571a6e6b8525b93161544eafc9b227e44Ron Rindjunsky 43795dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) { 438e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg ieee80211_handle_filtered_frame(local, sta, skb); 439d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 440f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 44195dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } else { 442e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK)) 44395dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg sta->tx_retry_failed++; 444e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg sta->tx_retry_count += retry_count; 445f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 44695dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg 4474b7679a561e552eeda1e3567119bef2bca99b66eJohannes Berg rate_control_tx_status(local, sband, sta, skb); 44895dac040041723d0c0ab245642c1b9802f12cc8dJohannes Berg } 449f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 450d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg rcu_read_unlock(); 451d0709a65181beb787ef3f58cfe45536a2bb254c8Johannes Berg 452f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_tx(local, 0); 453f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 454f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* SNMP counters 455f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * Fragments are passed to low-level drivers as separate skbs, so these 456f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * are actually fragments, not frames. Update frame counters only for 457f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the first fragment of the frame. */ 458f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 459f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; 460f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE; 461f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 462e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (info->flags & IEEE80211_TX_STAT_ACK) { 463f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) { 464f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFrameCount++; 465f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (is_multicast_ether_addr(hdr->addr1)) 466f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MulticastTransmittedFrameCount++; 467e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 0) 468f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11RetryCount++; 469e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (retry_count > 1) 470f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11MultipleRetryCount++; 471f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 472f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 473f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* This counter shall be incremented for an acknowledged MPDU 474f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with an individual address in the address 1 field or an MPDU 475f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * with a multicast address in the address 1 field of type Data 476f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * or Management. */ 477f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!is_multicast_ether_addr(hdr->addr1) || 478f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_DATA || 479f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc type == IEEE80211_FTYPE_MGMT) 480f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11TransmittedFragmentCount++; 481f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } else { 482f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (frag == 0) 483f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->dot11FailedCount++; 484f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 485f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 486b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* this was a transmitted frame, but now we want to reuse it */ 487b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_orphan(skb); 488b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 4893d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* 4903d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * This is a bit racy but we can avoid a lot of work 4913d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu * with this test... 4923d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu */ 4933d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (!local->monitors && !local->cooked_mntrs) { 494f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 495f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 496f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 497f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 498b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* send frame to monitor interfaces now */ 499f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 500b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (skb_headroom(skb) < sizeof(*rthdr)) { 501b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); 502f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc dev_kfree_skb(skb); 503f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return; 504f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 505f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 506988c0f723d0b1abb399e6e71d8bf3f8bf1949a70Johannes Berg rthdr = (struct ieee80211_tx_status_rtap_hdr *) 507b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg skb_push(skb, sizeof(*rthdr)); 508b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 509b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg memset(rthdr, 0, sizeof(*rthdr)); 510b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); 511b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->hdr.it_present = 512b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | 513e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_DATA_RETRIES) | 514e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (1 << IEEE80211_RADIOTAP_RATE)); 515b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 516e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg if (!(info->flags & IEEE80211_TX_STAT_ACK) && 517b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg !is_multicast_ether_addr(hdr->addr1)) 518b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); 519b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 520e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* 521e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * XXX: Once radiotap gets the bitmap reset thing the vendor 522e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * extensions proposal contains, we can actually report 523e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg * the whole set of tries we did. 524e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg */ 525e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) || 526e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) 527b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); 528e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) 529b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); 530e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg if (info->status.rates[0].idx >= 0 && 531e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) 532e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->rate = sband->bitrates[ 533e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg info->status.rates[0].idx].bitrate / 5; 534b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 535e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* for now report the total retry_count */ 536e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg rthdr->data_retries = retry_count; 537b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 5383d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu /* XXX: is this sufficient for BPF? */ 5393d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb_set_mac_header(skb, 0); 5403d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->ip_summed = CHECKSUM_UNNECESSARY; 5413d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->pkt_type = PACKET_OTHERHOST; 5423d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->protocol = htons(ETH_P_802_2); 5433d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu memset(skb->cb, 0, sizeof(skb->cb)); 5443d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 54579010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_lock(); 54679010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg list_for_each_entry_rcu(sdata, &local->interfaces, list) { 54705c914fe330fa8e1cc67870dc0d3809dfd96c107Johannes Berg if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 548b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg if (!netif_running(sdata->dev)) 549b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg continue; 5503d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 5513d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 55279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg skb2 = skb_clone(skb, GFP_ATOMIC); 5533d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (skb2) { 5543d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb2->dev = prev_dev; 5553d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb2); 5563d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 5573d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 5583d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu 5593d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu prev_dev = sdata->dev; 560b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 561b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg } 5623d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu if (prev_dev) { 5633d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb->dev = prev_dev; 5643d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu netif_rx(skb); 5653d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu skb = NULL; 5663d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu } 56779010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg rcu_read_unlock(); 5683d30d949cf3f9763393f3457721bca3ac2426e42Michael Wu dev_kfree_skb(skb); 569f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 570f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_tx_status); 571f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 572f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergstatic void ieee80211_restart_work(struct work_struct *work) 573f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 574f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = 575f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg container_of(work, struct ieee80211_local, restart_work); 576f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 577f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_lock(); 578f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_reconfig(local); 579f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg rtnl_unlock(); 580f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 581f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 582f2753ddbadb0873a98421415882318251bbd9eaaJohannes Bergvoid ieee80211_restart_hw(struct ieee80211_hw *hw) 583f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg{ 584f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg struct ieee80211_local *local = hw_to_local(hw); 585f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 586f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg /* use this reason, __ieee80211_resume will unblock it */ 587f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg ieee80211_stop_queues_by_reason(hw, 588f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg IEEE80211_QUEUE_STOP_REASON_SUSPEND); 589f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 590f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg schedule_work(&local->restart_work); 591f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg} 592f2753ddbadb0873a98421415882318251bbd9eaaJohannes BergEXPORT_SYMBOL(ieee80211_restart_hw); 593f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 594f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstruct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, 595f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc const struct ieee80211_ops *ops) 596f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 597f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local; 59896f5e66e8a79810e2982cdcfa28e554f3d97da21Johannes Berg int priv_size, i; 599f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct wiphy *wiphy; 600f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 601f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc /* Ensure 32-byte alignment of our private data and hw private data. 602f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * We use the wiphy priv data for both our ieee80211_local and for 603f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * the driver's private data 604f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 605f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * In memory it'll be like this: 606f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 607f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 608f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct wiphy | 609f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 610f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | struct ieee80211_local | 611f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 612f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * | driver's private data | 613f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * +-------------------------+ 614f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc * 615f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc */ 6161ce8e7b57b3a4527ef83da1c5c7bd8a6b9d87b56Eric Dumazet priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; 617f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 618f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy = wiphy_new(&mac80211_config_ops, priv_size); 619f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 620f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!wiphy) 621f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return NULL; 622f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 623f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy->privid = mac80211_wiphy_privid; 62418a8365992a8041aa178ae9ad5f0d951d0457230Johannes Berg 62500d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg /* Yes, putting cfg80211_bss into ieee80211_bss is a hack */ 62600d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg wiphy->bss_priv_size = sizeof(struct ieee80211_bss) - 62700d3f14cf9f12c21428121026a5e1d5f65926447Johannes Berg sizeof(struct cfg80211_bss); 628f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 629f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local = wiphy_priv(wiphy); 630de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 631f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->hw.wiphy = wiphy; 632f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6331ce8e7b57b3a4527ef83da1c5c7bd8a6b9d87b56Eric Dumazet local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); 634f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6354480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->tx); 6364150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->start); 6374150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->stop); 6384480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->config); 6394480f15ca62a595248d6d8e2b3e75052113cde59Johannes Berg BUG_ON(!ops->add_interface); 6404150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->remove_interface); 6414150c57212ad134765dd78c654a4b9906252b66dJohannes Berg BUG_ON(!ops->configure_filter); 642f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc local->ops = ops; 643f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 644e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg /* set up some defaults */ 645e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.queues = 1; 646e6a9854b05c1a6af1308fe2b8c68f35abf28a3eeJohannes Berg local->hw.max_rates = 1; 647b9a5f8cab751d362f7c2d94899ca788c22fcd1efJouni Malinen local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 648b9a5f8cab751d362f7c2d94899ca788c22fcd1efJouni Malinen local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 649e8975581f63870be42ff4662b293d1b0c8c21350Johannes Berg local->hw.conf.radio_enabled = true; 650c428c89201a57a0ce24c37ed79e540d1f4101cf3Johannes Berg local->user_power_level = -1; 651f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 65279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg INIT_LIST_HEAD(&local->interfaces); 653c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_init(&local->iflist_mtx); 654f3b85252f081581a8f257545ed748062dce7798bJohannes Berg mutex_init(&local->scan_mtx); 655f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 656b16bd15c379410f2aa47837aa4a0de5712856ad5Johannes Berg spin_lock_init(&local->key_lock); 6573b8d81e020f77c9da8b85b0685c8cd2ca7c7b150Johannes Berg spin_lock_init(&local->filter_lock); 658ce7c9111a97492d04c504f40736a669c235d664aKalle Valo spin_lock_init(&local->queue_stop_reason_lock); 659ce7c9111a97492d04c504f40736a669c235d664aKalle Valo 660c2b13452b283f9c4a5b02a6b53ed6416ebf4c03cJohannes Berg INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); 661f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 662f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg INIT_WORK(&local->restart_work, ieee80211_restart_work); 663f2753ddbadb0873a98421415882318251bbd9eaaJohannes Berg 664520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_enable_work, 665520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_enable_work); 666520eb82076993b7f55ef9b80771d264272e5127bKalle Valo INIT_WORK(&local->dynamic_ps_disable_work, 667520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_disable_work); 668520eb82076993b7f55ef9b80771d264272e5127bKalle Valo setup_timer(&local->dynamic_ps_timer, 669520eb82076993b7f55ef9b80771d264272e5127bKalle Valo ieee80211_dynamic_ps_timer, (unsigned long) local); 670520eb82076993b7f55ef9b80771d264272e5127bKalle Valo 671f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_init(local); 672f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 6732a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg for (i = 0; i < IEEE80211_MAX_QUEUES; i++) 6742a577d98712a284a612dd51d69db5cb989810dc2Johannes Berg skb_queue_head_init(&local->pending[i]); 675f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, 676f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long)local); 677f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tx_pending_tasklet); 678f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 679f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_init(&local->tasklet, 680f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_tasklet_handler, 681f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc (unsigned long) local); 682f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_disable(&local->tasklet); 683f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 684f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue); 685f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_head_init(&local->skb_queue_unreliable); 686f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 687cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg spin_lock_init(&local->ampdu_lock); 688cd8ffc800ce18e558335c4946b2217864fc16045Johannes Berg 689f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return local_to_hw(local); 690f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 691f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_alloc_hw); 692f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 693f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencint ieee80211_register_hw(struct ieee80211_hw *hw) 694f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 695f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 696f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int result; 6978318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg enum ieee80211_band band; 698de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg int channels, i, j, max_bitrates; 6995ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg bool supp_ht; 70025e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg static const u32 cipher_suites[] = { 70125e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP40, 70225e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_WEP104, 70325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_TKIP, 70425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_CCMP, 70525e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 70625e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg /* keep last -- depends on hw flags! */ 70725e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg WLAN_CIPHER_SUITE_AES_CMAC 70825e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg }; 7098318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg 7108318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* 7118318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * generic code guarantees at least one band, 7128318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * set this very early because much code assumes 7138318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg * that hw.conf.channel is assigned 7148318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg */ 7152a5193119269062608582418deba7af82844159aJohannes Berg channels = 0; 716de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = 0; 7175ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = false; 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]; 722de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!sband) 723de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg continue; 724de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->oper_channel) { 7258318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg /* init channel we're on */ 7268318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg local->hw.conf.channel = 72758905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg local->oper_channel = &sband->channels[0]; 72858905ca5b11a0ff3860f55b789cbbf052f7158a7Johannes Berg local->hw.conf.channel_type = NL80211_CHAN_NO_HT; 7298318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 730de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg channels += sband->n_channels; 731de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 732de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (max_bitrates < sband->n_bitrates) 733de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg max_bitrates = sband->n_bitrates; 7345ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg supp_ht = supp_ht || sband->ht_cap.ht_supported; 7358318d78a44d49ac1edf2bdec7299de3617c4232eJohannes Berg } 736f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 7372a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.n_channels = channels; 7382a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.channels = kzalloc(sizeof(void *) * channels, GFP_KERNEL); 7392a5193119269062608582418deba7af82844159aJohannes Berg if (!local->int_scan_req.channels) 7402a5193119269062608582418deba7af82844159aJohannes Berg return -ENOMEM; 7412a5193119269062608582418deba7af82844159aJohannes Berg 742f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* if low-level driver supports AP, we also support VLAN */ 743f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) 744f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); 745f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 746f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez /* mac80211 always supports monitor */ 747f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); 748f59ac0481660e66cec67f1d6b024e78b9dc715feLuis R. Rodriguez 74977965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) 75077965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 75177965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) 75277965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; 75377965c970d7da9c9b6349ff2b1d9adecf54c403bJohannes Berg 754de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 755de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * Calculate scan IE length -- we need this to alloc 756de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * memory and to subtract from the driver limit. It 757de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * includes the (extended) supported rates and HT 758de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * information -- SSID is the driver's responsibility. 759de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 760de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */ 7615ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg if (supp_ht) 7625ef2d41afb7fce2315d12a8aaebe0c9f1b50755bJohannes Berg local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); 763de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 764de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (!local->ops->hw_scan) { 765de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* For hw_scan, driver needs to set these up. */ 766de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ssids = 4; 767de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; 768de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg } 769de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 770de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg /* 771de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * If the driver supports any scan IEs, then assume the 772de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * limit includes the IEs mac80211 will add, otherwise 773de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * leave it at zero and let the driver sort it out; we 774de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * still pass our IEs to the driver but userspace will 775de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg * not be allowed to in that case. 776de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg */ 777de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg if (local->hw.wiphy->max_scan_ie_len) 778de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; 779de95a54b1aebe5592cae971ca5e5d9ec6a381a17Johannes Berg 78025e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->cipher_suites = cipher_suites; 78125e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 78225e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) 78325e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg local->hw.wiphy->n_cipher_suites--; 78425e47c18ac4d8ad09c2ed4b99c1dbbcb7e3d2c51Johannes Berg 785f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = wiphy_register(local->hw.wiphy); 786f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 7872a5193119269062608582418deba7af82844159aJohannes Berg goto fail_wiphy_register; 788f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 789e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg /* 790e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * We use the number of queues for feature tests (QoS, HT) internally 791e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg * so restrict them appropriately. 792e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg */ 793e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg if (hw->queues > IEEE80211_MAX_QUEUES) 794e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg hw->queues = IEEE80211_MAX_QUEUES; 795e2530083609148a7835b54c431f6b8956407c1f6Johannes Berg 7964ada424db196c78746fec255d493cacb1c9feddfLuis R. Rodriguez local->hw.workqueue = 79730d3ef41b4395d9bee5f481395eef2d3b8b6ee50Bob Copeland create_singlethread_workqueue(wiphy_name(local->hw.wiphy)); 798f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (!local->hw.workqueue) { 799f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = -ENOMEM; 800f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_workqueue; 801f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 802f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 803b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg /* 804b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * The hardware needs headroom for sending the frame, 805b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * and we need some headroom for passing the frame to monitor 806b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg * interfaces, but never both at the same time. 807b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg */ 80833ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, 80933ccad35a21df51c0d23f3e3e88688524e7b51edJiri Benc sizeof(struct ieee80211_tx_status_rtap_hdr)); 810b306f45300866adc01b84f7aa083bfcd9cbb89c4Johannes Berg 811e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_add(local); 812e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 813ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler if (local->hw.max_listen_interval == 0) 814ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.max_listen_interval = 1; 815ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 816ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler local->hw.conf.listen_interval = local->hw.max_listen_interval; 817ea95bba41e69c616bb1512cf59d22f33266b8568Tomas Winkler 818f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc result = sta_info_start(local); 819f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) 820f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_sta_info; 821f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 822d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins result = ieee80211_wep_init(local); 823d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins if (result < 0) { 824d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n", 825d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins wiphy_name(local->hw.wiphy), result); 826d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins goto fail_wep; 827d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins } 828d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins 829f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 830f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 831830f903866a1611e9ce53f3e35202302bb938946Johannes Berg result = ieee80211_init_rate_ctrl_alg(local, 832830f903866a1611e9ce53f3e35202302bb938946Johannes Berg hw->rate_control_algorithm); 833f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (result < 0) { 834f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_DEBUG "%s: Failed to initialize rate control " 835dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg "algorithm\n", wiphy_name(local->hw.wiphy)); 836f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc goto fail_rate; 837f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc } 838f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8398dffff216fcac4f79078478085e86d68db64922eJohannes Berg /* add one default STA interface if supported */ 8408dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { 8418dffff216fcac4f79078478085e86d68db64922eJohannes Berg result = ieee80211_if_add(local, "wlan%d", NULL, 8428dffff216fcac4f79078478085e86d68db64922eJohannes Berg NL80211_IFTYPE_STATION, NULL); 8438dffff216fcac4f79078478085e86d68db64922eJohannes Berg if (result) 8448dffff216fcac4f79078478085e86d68db64922eJohannes Berg printk(KERN_WARNING "%s: Failed to add default virtual iface\n", 8458dffff216fcac4f79078478085e86d68db64922eJohannes Berg wiphy_name(local->hw.wiphy)); 8468dffff216fcac4f79078478085e86d68db64922eJohannes Berg } 847f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 848f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 849f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 850f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_init(local); 851f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 8522a5193119269062608582418deba7af82844159aJohannes Berg /* alloc internal scan request */ 8532a5193119269062608582418deba7af82844159aJohannes Berg i = 0; 8542a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.ssids = &local->scan_ssid; 8552a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.n_ssids = 1; 8562a5193119269062608582418deba7af82844159aJohannes Berg for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 8572a5193119269062608582418deba7af82844159aJohannes Berg if (!hw->wiphy->bands[band]) 8582a5193119269062608582418deba7af82844159aJohannes Berg continue; 8592a5193119269062608582418deba7af82844159aJohannes Berg for (j = 0; j < hw->wiphy->bands[band]->n_channels; j++) { 8602a5193119269062608582418deba7af82844159aJohannes Berg local->int_scan_req.channels[i] = 8612a5193119269062608582418deba7af82844159aJohannes Berg &hw->wiphy->bands[band]->channels[j]; 8622a5193119269062608582418deba7af82844159aJohannes Berg i++; 8632a5193119269062608582418deba7af82844159aJohannes Berg } 8642a5193119269062608582418deba7af82844159aJohannes Berg } 8652a5193119269062608582418deba7af82844159aJohannes Berg 86610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg local->network_latency_notifier.notifier_call = 86710f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_max_network_latency; 86810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, 86910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 87010f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 87110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg if (result) { 87210f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg rtnl_lock(); 87310f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg goto fail_pm_qos; 87410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg } 87510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 876f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 877f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 87810f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_pm_qos: 87910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_led_exit(local); 88010f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg ieee80211_remove_interfaces(local); 88110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_rate: 882f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 883d4c4a9a1bce1912ed5681251f0037fd4f2364a3eAlan Jenkins ieee80211_wep_free(local); 884aba7453037c3a90714caae77a622dceaf1173786David S. Miller fail_wep: 885f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 88610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_sta_info: 887e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 888f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 88910f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_workqueue: 890f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 89110f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg fail_wiphy_register: 8922a5193119269062608582418deba7af82844159aJohannes Berg kfree(local->int_scan_req.channels); 893f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return result; 894f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 895f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_register_hw); 896f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 897f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_unregister_hw(struct ieee80211_hw *hw) 898f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 899f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 900f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 901f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tx_pending_tasklet); 902f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc tasklet_kill(&local->tasklet); 903f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 90410f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, 90510f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg &local->network_latency_notifier); 90610f644a47b76d3e61b98f2d02ce9690b94c51ee5Johannes Berg 907f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_lock(); 908f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 90979010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg /* 91079010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * At this point, interface list manipulations are fine 91179010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * because the driver cannot be handing us frames any 91279010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg * more and the tasklet is killed. 91379010420cc3f78eab911598bfdd29c4b06a83e1fJohannes Berg */ 91475636525fbfa78fa33fd754c89785cfde750acd3Johannes Berg ieee80211_remove_interfaces(local); 9155b2812e925c8e976852867f8d760637c5926d817Johannes Berg 916f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rtnl_unlock(); 917f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 918f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_clear_tx_pending(local); 919f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc sta_info_stop(local); 920f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc rate_control_deinitialize(local); 921e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc debugfs_hw_del(local); 922f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 923f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc if (skb_queue_len(&local->skb_queue) 924f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc || skb_queue_len(&local->skb_queue_unreliable)) 925f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc printk(KERN_WARNING "%s: skb_queue not empty\n", 926dd1cd4c620c174ebbdf78dc01b924115a06de5d3Johannes Berg wiphy_name(local->hw.wiphy)); 927f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue); 928f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc skb_queue_purge(&local->skb_queue_unreliable); 929f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 930f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc destroy_workqueue(local->hw.workqueue); 931f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_unregister(local->hw.wiphy); 932f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_wep_free(local); 933f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc ieee80211_led_exit(local); 9342a5193119269062608582418deba7af82844159aJohannes Berg kfree(local->int_scan_req.channels); 935f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 936f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_unregister_hw); 937f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 938f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencvoid ieee80211_free_hw(struct ieee80211_hw *hw) 939f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 940f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct ieee80211_local *local = hw_to_local(hw); 941f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 942c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg mutex_destroy(&local->iflist_mtx); 943f3b85252f081581a8f257545ed748062dce7798bJohannes Berg mutex_destroy(&local->scan_mtx); 944c771c9d8da1e8292ef8bf7fd4ce135dacc650130Johannes Berg 945f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc wiphy_free(local->hw.wiphy); 946f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 947f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencEXPORT_SYMBOL(ieee80211_free_hw); 948f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 949f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic int __init ieee80211_init(void) 950f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 951f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc struct sk_buff *skb; 952f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc int ret; 953f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 954e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); 955e039fa4a4195ac4ee895e6f3d1334beed63256feJohannes Berg BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + 956c6a1fa12d206882757264869f8e32d606b930e2aJohannes Berg IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); 957f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 958cccf129f820e431d84690729254a32f1709328fbFelix Fietkau ret = rc80211_minstrel_init(); 959cccf129f820e431d84690729254a32f1709328fbFelix Fietkau if (ret) 960cccf129f820e431d84690729254a32f1709328fbFelix Fietkau return ret; 961cccf129f820e431d84690729254a32f1709328fbFelix Fietkau 9624b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg ret = rc80211_pid_init(); 963ad01837593338f13508463fa11c8dbf8109a1e5dMattias Nissler if (ret) 96451cb6db0f5654f08a4a6bfa3888dc36a51c2df3eDavid S. Miller return ret; 965f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 966e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_init(); 967e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc 968f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc return 0; 969f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 970f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 971f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencstatic void __exit ieee80211_exit(void) 972f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc{ 9734b475898ec9dc6e62cebcb8fc0b3495c986a4590Johannes Berg rc80211_pid_exit(); 974cccf129f820e431d84690729254a32f1709328fbFelix Fietkau rc80211_minstrel_exit(); 975ac71c691e6a5ce991fe221d3bdb0c972f617aa37Johannes Berg 9763b96766f0e643f52ae19e134664df6730c737e87Johannes Berg /* 9773b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * For key todo, it'll be empty by now but the work 9783b96766f0e643f52ae19e134664df6730c737e87Johannes Berg * might still be scheduled. 9793b96766f0e643f52ae19e134664df6730c737e87Johannes Berg */ 9803b96766f0e643f52ae19e134664df6730c737e87Johannes Berg flush_scheduled_work(); 9813b96766f0e643f52ae19e134664df6730c737e87Johannes Berg 982f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo if (mesh_allocated) 983f7a921443740d7dafc65b17aa32531730d358f50Luis Carlos Cobo ieee80211s_stop(); 984902acc7896d7649fb30e4b22bd4e643c7f34b02cJohannes Berg 985e9f207f0ff90bf60b825800d7450e6f2ff2eab88Jiri Benc ieee80211_debugfs_netdev_exit(); 986f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc} 987f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 988f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 989ca9938fea576ebbb8d8c4fbe8a5bcc937e49e1caJohannes Bergsubsys_initcall(ieee80211_init); 990f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Bencmodule_exit(ieee80211_exit); 991f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri Benc 992f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_DESCRIPTION("IEEE 802.11 subsystem"); 993f0706e828e96d0fa4e80c0d25aa98523f6d589a0Jiri BencMODULE_LICENSE("GPL"); 994