Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2002-2005, Instant802 Networks, Inc. |
| 3 | * Copyright 2005-2006, Devicescape Software, Inc. |
| 4 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> |
Johannes Berg | d98ad83 | 2014-09-03 15:24:57 +0300 | [diff] [blame] | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
| 12 | #include <net/mac80211.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/netdevice.h> |
| 16 | #include <linux/types.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/skbuff.h> |
| 19 | #include <linux/etherdevice.h> |
| 20 | #include <linux/if_arp.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 21 | #include <linux/rtnetlink.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 22 | #include <linux/bitmap.h> |
Jean Pihet | e8db0be | 2011-08-25 15:35:03 +0200 | [diff] [blame] | 23 | #include <linux/pm_qos.h> |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 24 | #include <linux/inetdevice.h> |
Eric W. Biederman | 881d966 | 2007-09-17 11:56:21 -0700 | [diff] [blame] | 25 | #include <net/net_namespace.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 26 | #include <net/cfg80211.h> |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 27 | #include <net/addrconf.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 28 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 29 | #include "ieee80211_i.h" |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 30 | #include "driver-ops.h" |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 31 | #include "rate.h" |
Luis Carlos Cobo | f7a9214 | 2008-02-23 15:17:18 +0100 | [diff] [blame] | 32 | #include "mesh.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 33 | #include "wep.h" |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 34 | #include "led.h" |
Michael Wu | e0eb685 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 35 | #include "cfg.h" |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 36 | #include "debugfs.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 37 | |
Johannes Berg | 0d143fe | 2008-09-11 00:01:59 +0200 | [diff] [blame] | 38 | void ieee80211_configure_filter(struct ieee80211_local *local) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 39 | { |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 40 | u64 mc; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 41 | unsigned int changed_flags; |
| 42 | unsigned int new_flags = 0; |
| 43 | |
Johannes Berg | 5391899 | 2007-09-26 15:19:47 +0200 | [diff] [blame] | 44 | if (atomic_read(&local->iff_promiscs)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 45 | new_flags |= FIF_PROMISC_IN_BSS; |
| 46 | |
Johannes Berg | 5391899 | 2007-09-26 15:19:47 +0200 | [diff] [blame] | 47 | if (atomic_read(&local->iff_allmultis)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 48 | new_flags |= FIF_ALLMULTI; |
| 49 | |
Ben Greear | 8a69067 | 2012-04-17 10:54:16 -0700 | [diff] [blame] | 50 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
| 51 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) |
Michael Wu | 8cc9a73 | 2008-01-31 19:48:23 +0100 | [diff] [blame] | 52 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
| 53 | |
Johannes Berg | 7be5086 | 2010-10-13 12:06:24 +0200 | [diff] [blame] | 54 | if (local->fif_probe_req || local->probe_req_reg) |
| 55 | new_flags |= FIF_PROBE_REQ; |
| 56 | |
Michael Wu | 8cc9a73 | 2008-01-31 19:48:23 +0100 | [diff] [blame] | 57 | if (local->fif_fcsfail) |
| 58 | new_flags |= FIF_FCSFAIL; |
| 59 | |
| 60 | if (local->fif_plcpfail) |
| 61 | new_flags |= FIF_PLCPFAIL; |
| 62 | |
| 63 | if (local->fif_control) |
| 64 | new_flags |= FIF_CONTROL; |
| 65 | |
| 66 | if (local->fif_other_bss) |
| 67 | new_flags |= FIF_OTHER_BSS; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 68 | |
Igor Perminov | e3b90ca | 2009-08-04 16:48:51 +0400 | [diff] [blame] | 69 | if (local->fif_pspoll) |
| 70 | new_flags |= FIF_PSPOLL; |
| 71 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 72 | spin_lock_bh(&local->filter_lock); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 73 | changed_flags = local->filter_flags ^ new_flags; |
| 74 | |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 75 | mc = drv_prepare_multicast(local, &local->mc_list); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 76 | spin_unlock_bh(&local->filter_lock); |
| 77 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 78 | /* be a bit nasty */ |
| 79 | new_flags |= (1<<31); |
| 80 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 81 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 82 | |
| 83 | WARN_ON(new_flags & (1<<31)); |
| 84 | |
| 85 | local->filter_flags = new_flags & ~(1<<31); |
| 86 | } |
| 87 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 88 | static void ieee80211_reconfig_filter(struct work_struct *work) |
| 89 | { |
| 90 | struct ieee80211_local *local = |
| 91 | container_of(work, struct ieee80211_local, reconfig_filter); |
| 92 | |
| 93 | ieee80211_configure_filter(local); |
| 94 | } |
| 95 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 96 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 97 | { |
Johannes Berg | 1ea6f9c | 2012-10-24 10:59:25 +0200 | [diff] [blame] | 98 | struct ieee80211_sub_if_data *sdata; |
Karl Beldan | 675a0b0 | 2013-03-25 16:26:57 +0100 | [diff] [blame] | 99 | struct cfg80211_chan_def chandef = {}; |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 100 | u32 changed = 0; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 101 | int power; |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 102 | u32 offchannel_flag; |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 103 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 104 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Karl Beldan | 675a0b0 | 2013-03-25 16:26:57 +0100 | [diff] [blame] | 105 | |
Simon Wunderlich | 7ca15a0 | 2013-07-08 16:55:56 +0200 | [diff] [blame] | 106 | if (local->scan_chandef.chan) { |
| 107 | chandef = local->scan_chandef; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 108 | } else if (local->tmp_channel) { |
Karl Beldan | 675a0b0 | 2013-03-25 16:26:57 +0100 | [diff] [blame] | 109 | chandef.chan = local->tmp_channel; |
| 110 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; |
| 111 | chandef.center_freq1 = chandef.chan->center_freq; |
| 112 | } else |
| 113 | chandef = local->_oper_chandef; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 114 | |
Karl Beldan | 675a0b0 | 2013-03-25 16:26:57 +0100 | [diff] [blame] | 115 | WARN(!cfg80211_chandef_valid(&chandef), |
| 116 | "control:%d MHz width:%d center: %d/%d MHz", |
| 117 | chandef.chan->center_freq, chandef.width, |
| 118 | chandef.center_freq1, chandef.center_freq2); |
| 119 | |
| 120 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 121 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
| 122 | else |
| 123 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; |
| 124 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 125 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 126 | |
Karl Beldan | 675a0b0 | 2013-03-25 16:26:57 +0100 | [diff] [blame] | 127 | if (offchannel_flag || |
| 128 | !cfg80211_chandef_identical(&local->hw.conf.chandef, |
| 129 | &local->_oper_chandef)) { |
| 130 | local->hw.conf.chandef = chandef; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 131 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
| 132 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 133 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 134 | if (!conf_is_ht(&local->hw.conf)) { |
| 135 | /* |
| 136 | * mac80211.h documents that this is only valid |
| 137 | * when the channel is set to an HT type, and |
| 138 | * that otherwise STATIC is used. |
| 139 | */ |
| 140 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; |
| 141 | } else if (local->hw.conf.smps_mode != local->smps_mode) { |
| 142 | local->hw.conf.smps_mode = local->smps_mode; |
| 143 | changed |= IEEE80211_CONF_CHANGE_SMPS; |
| 144 | } |
| 145 | |
Simon Wunderlich | 0430c88 | 2013-07-08 16:55:55 +0200 | [diff] [blame] | 146 | power = ieee80211_chandef_max_power(&chandef); |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 147 | |
Johannes Berg | 1ea6f9c | 2012-10-24 10:59:25 +0200 | [diff] [blame] | 148 | rcu_read_lock(); |
| 149 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
| 150 | if (!rcu_access_pointer(sdata->vif.chanctx_conf)) |
| 151 | continue; |
Felix Fietkau | 764152f | 2014-04-10 15:06:48 +0200 | [diff] [blame] | 152 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
| 153 | continue; |
Johannes Berg | 1ea6f9c | 2012-10-24 10:59:25 +0200 | [diff] [blame] | 154 | power = min(power, sdata->vif.bss_conf.txpower); |
| 155 | } |
| 156 | rcu_read_unlock(); |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 157 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 158 | if (local->hw.conf.power_level != power) { |
| 159 | changed |= IEEE80211_CONF_CHANGE_POWER; |
| 160 | local->hw.conf.power_level = power; |
| 161 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 162 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 163 | return changed; |
| 164 | } |
| 165 | |
| 166 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
| 167 | { |
| 168 | int ret = 0; |
| 169 | |
| 170 | might_sleep(); |
| 171 | |
| 172 | if (!local->use_chanctx) |
| 173 | changed |= ieee80211_hw_conf_chan(local); |
| 174 | else |
| 175 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | |
| 176 | IEEE80211_CONF_CHANGE_POWER); |
| 177 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 178 | if (changed && local->open_count) { |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 179 | ret = drv_config(local, changed); |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 180 | /* |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 181 | * Goal: |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 182 | * HW reconfiguration should never fail, the driver has told |
| 183 | * us what it can support so it should live up to that promise. |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 184 | * |
| 185 | * Current status: |
| 186 | * rfkill is not integrated with mac80211 and a |
| 187 | * configuration command can thus fail if hardware rfkill |
| 188 | * is enabled |
| 189 | * |
| 190 | * FIXME: integrate rfkill with mac80211 and then add this |
| 191 | * WARN_ON() back |
| 192 | * |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 193 | */ |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 194 | /* WARN_ON(ret); */ |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 195 | } |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 196 | |
| 197 | return ret; |
| 198 | } |
| 199 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 200 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| 201 | u32 changed) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 202 | { |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 203 | struct ieee80211_local *local = sdata->local; |
| 204 | |
Felix Fietkau | 990baec | 2014-04-09 00:08:01 +0200 | [diff] [blame] | 205 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 206 | return; |
| 207 | |
Johannes Berg | 12375ef | 2009-11-25 20:30:31 +0100 | [diff] [blame] | 208 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 209 | } |
| 210 | |
Jasper Bryant-Greene | f698d85 | 2008-08-03 12:04:37 +1200 | [diff] [blame] | 211 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 212 | { |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 213 | sdata->vif.bss_conf.use_cts_prot = false; |
| 214 | sdata->vif.bss_conf.use_short_preamble = false; |
| 215 | sdata->vif.bss_conf.use_short_slot = false; |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 216 | return BSS_CHANGED_ERP_CTS_PROT | |
| 217 | BSS_CHANGED_ERP_PREAMBLE | |
| 218 | BSS_CHANGED_ERP_SLOT; |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 219 | } |
| 220 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 221 | static void ieee80211_tasklet_handler(unsigned long data) |
| 222 | { |
| 223 | struct ieee80211_local *local = (struct ieee80211_local *) data; |
| 224 | struct sk_buff *skb; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 225 | |
| 226 | while ((skb = skb_dequeue(&local->skb_queue)) || |
| 227 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { |
| 228 | switch (skb->pkt_type) { |
| 229 | case IEEE80211_RX_MSG: |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 230 | /* Clear skb->pkt_type in order to not confuse kernel |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 231 | * netstack. */ |
| 232 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 233 | ieee80211_rx(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 234 | break; |
| 235 | case IEEE80211_TX_STATUS_MSG: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 236 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 237 | ieee80211_tx_status(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 238 | break; |
Johannes Berg | f4ea83d | 2008-06-30 15:10:46 +0200 | [diff] [blame] | 239 | default: |
Larry Finger | 5e3f308 | 2008-12-17 14:26:59 -0600 | [diff] [blame] | 240 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
| 241 | skb->pkt_type); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 242 | dev_kfree_skb(skb); |
| 243 | break; |
| 244 | } |
| 245 | } |
| 246 | } |
| 247 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 248 | static void ieee80211_restart_work(struct work_struct *work) |
| 249 | { |
| 250 | struct ieee80211_local *local = |
| 251 | container_of(work, struct ieee80211_local, restart_work); |
| 252 | |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 253 | /* wait for scan work complete */ |
| 254 | flush_workqueue(local->workqueue); |
| 255 | |
David Spinadel | d43c6b6 | 2013-12-08 21:48:57 +0200 | [diff] [blame] | 256 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
| 257 | "%s called with hardware scan in progress\n", __func__); |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 258 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 259 | rtnl_lock(); |
Stanislaw Gruszka | 4136c42 | 2010-10-06 11:22:10 +0200 | [diff] [blame] | 260 | ieee80211_scan_cancel(local); |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 261 | ieee80211_reconfig(local); |
| 262 | rtnl_unlock(); |
| 263 | } |
| 264 | |
| 265 | void ieee80211_restart_hw(struct ieee80211_hw *hw) |
| 266 | { |
| 267 | struct ieee80211_local *local = hw_to_local(hw); |
| 268 | |
Johannes Berg | b5878a2 | 2010-04-07 16:48:40 +0200 | [diff] [blame] | 269 | trace_api_restart_hw(local); |
| 270 | |
Michael Buesch | b196d03 | 2011-03-07 13:09:12 +0100 | [diff] [blame] | 271 | wiphy_info(hw->wiphy, |
| 272 | "Hardware restart was requested\n"); |
| 273 | |
John W. Linville | 18145c6 | 2010-08-30 15:12:02 -0400 | [diff] [blame] | 274 | /* use this reason, ieee80211_reconfig will unblock it */ |
Johannes Berg | 445ea4e | 2013-02-13 12:25:28 +0100 | [diff] [blame] | 275 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
Luciano Coelho | cca07b0 | 2014-06-13 16:30:05 +0300 | [diff] [blame] | 276 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
| 277 | false); |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 278 | |
Arik Nemtsov | 04800ad | 2012-06-06 11:25:02 +0300 | [diff] [blame] | 279 | /* |
| 280 | * Stop all Rx during the reconfig. We don't want state changes |
| 281 | * or driver callbacks while this is in progress. |
| 282 | */ |
| 283 | local->in_reconfig = true; |
| 284 | barrier(); |
| 285 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 286 | schedule_work(&local->restart_work); |
| 287 | } |
| 288 | EXPORT_SYMBOL(ieee80211_restart_hw); |
| 289 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 290 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 291 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
| 292 | unsigned long data, void *arg) |
| 293 | { |
| 294 | struct in_ifaddr *ifa = arg; |
| 295 | struct ieee80211_local *local = |
| 296 | container_of(nb, struct ieee80211_local, |
| 297 | ifa_notifier); |
| 298 | struct net_device *ndev = ifa->ifa_dev->dev; |
| 299 | struct wireless_dev *wdev = ndev->ieee80211_ptr; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 300 | struct in_device *idev; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 301 | struct ieee80211_sub_if_data *sdata; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 302 | struct ieee80211_bss_conf *bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 303 | struct ieee80211_if_managed *ifmgd; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 304 | int c = 0; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 305 | |
| 306 | /* Make sure it's our interface that got changed */ |
| 307 | if (!wdev) |
| 308 | return NOTIFY_DONE; |
| 309 | |
| 310 | if (wdev->wiphy != local->hw.wiphy) |
| 311 | return NOTIFY_DONE; |
| 312 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 313 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 314 | bss_conf = &sdata->vif.bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 315 | |
| 316 | /* ARP filtering is only supported in managed mode */ |
| 317 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 318 | return NOTIFY_DONE; |
| 319 | |
Eric Dumazet | 95ae6b2 | 2010-09-15 04:04:31 +0000 | [diff] [blame] | 320 | idev = __in_dev_get_rtnl(sdata->dev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 321 | if (!idev) |
| 322 | return NOTIFY_DONE; |
| 323 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 324 | ifmgd = &sdata->u.mgd; |
Johannes Berg | 8d61ffa | 2013-05-10 12:32:47 +0200 | [diff] [blame] | 325 | sdata_lock(sdata); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 326 | |
| 327 | /* Copy the addresses to the bss_conf list */ |
| 328 | ifa = idev->ifa_list; |
Johannes Berg | 0f19b41 | 2013-01-14 16:39:07 +0100 | [diff] [blame] | 329 | while (ifa) { |
| 330 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) |
| 331 | bss_conf->arp_addr_list[c] = ifa->ifa_address; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 332 | ifa = ifa->ifa_next; |
| 333 | c++; |
| 334 | } |
| 335 | |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 336 | bss_conf->arp_addr_cnt = c; |
| 337 | |
Eliad Peller | 53d69c3 | 2011-12-12 15:30:04 +0200 | [diff] [blame] | 338 | /* Configure driver only if associated (which also implies it is up) */ |
Johannes Berg | 0f19b41 | 2013-01-14 16:39:07 +0100 | [diff] [blame] | 339 | if (ifmgd->associated) |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 340 | ieee80211_bss_info_change_notify(sdata, |
| 341 | BSS_CHANGED_ARP_FILTER); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 342 | |
Johannes Berg | 8d61ffa | 2013-05-10 12:32:47 +0200 | [diff] [blame] | 343 | sdata_unlock(sdata); |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 344 | |
Zhao, Gang | 8bd811a | 2014-04-21 12:53:05 +0800 | [diff] [blame] | 345 | return NOTIFY_OK; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 346 | } |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 347 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 348 | |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 349 | #if IS_ENABLED(CONFIG_IPV6) |
| 350 | static int ieee80211_ifa6_changed(struct notifier_block *nb, |
| 351 | unsigned long data, void *arg) |
| 352 | { |
| 353 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; |
| 354 | struct inet6_dev *idev = ifa->idev; |
| 355 | struct net_device *ndev = ifa->idev->dev; |
| 356 | struct ieee80211_local *local = |
| 357 | container_of(nb, struct ieee80211_local, ifa6_notifier); |
| 358 | struct wireless_dev *wdev = ndev->ieee80211_ptr; |
| 359 | struct ieee80211_sub_if_data *sdata; |
| 360 | |
| 361 | /* Make sure it's our interface that got changed */ |
| 362 | if (!wdev || wdev->wiphy != local->hw.wiphy) |
| 363 | return NOTIFY_DONE; |
| 364 | |
| 365 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
| 366 | |
| 367 | /* |
| 368 | * For now only support station mode. This is mostly because |
| 369 | * doing AP would have to handle AP_VLAN in some way ... |
| 370 | */ |
| 371 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 372 | return NOTIFY_DONE; |
| 373 | |
| 374 | drv_ipv6_addr_change(local, sdata, idev); |
| 375 | |
Zhao, Gang | 8bd811a | 2014-04-21 12:53:05 +0800 | [diff] [blame] | 376 | return NOTIFY_OK; |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 377 | } |
| 378 | #endif |
| 379 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 380 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
| 381 | static const struct ieee80211_txrx_stypes |
| 382 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { |
| 383 | [NL80211_IFTYPE_ADHOC] = { |
| 384 | .tx = 0xffff, |
Will Hawkins | 3bfda62 | 2012-06-19 17:59:14 -0400 | [diff] [blame] | 385 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 386 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
Antonio Quartulli | 41e31b8 | 2012-11-30 00:18:12 +0100 | [diff] [blame] | 387 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 388 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 389 | }, |
| 390 | [NL80211_IFTYPE_STATION] = { |
| 391 | .tx = 0xffff, |
| 392 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 393 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 394 | }, |
| 395 | [NL80211_IFTYPE_AP] = { |
| 396 | .tx = 0xffff, |
| 397 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 398 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 399 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 400 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 401 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 402 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 403 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 404 | }, |
| 405 | [NL80211_IFTYPE_AP_VLAN] = { |
| 406 | /* copy AP */ |
| 407 | .tx = 0xffff, |
| 408 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 409 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 410 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 411 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 412 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 413 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 414 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 415 | }, |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 416 | [NL80211_IFTYPE_P2P_CLIENT] = { |
| 417 | .tx = 0xffff, |
| 418 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 419 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 420 | }, |
| 421 | [NL80211_IFTYPE_P2P_GO] = { |
| 422 | .tx = 0xffff, |
| 423 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 424 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 425 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 426 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 427 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 428 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 429 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 430 | }, |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 431 | [NL80211_IFTYPE_MESH_POINT] = { |
| 432 | .tx = 0xffff, |
Javier Cardona | 7183912 | 2011-04-07 15:08:31 -0700 | [diff] [blame] | 433 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 434 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 435 | BIT(IEEE80211_STYPE_DEAUTH >> 4), |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 436 | }, |
Johannes Berg | f142c6b | 2012-06-18 20:07:15 +0200 | [diff] [blame] | 437 | [NL80211_IFTYPE_P2P_DEVICE] = { |
| 438 | .tx = 0xffff, |
| 439 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 440 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 441 | }, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 442 | }; |
| 443 | |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 444 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
| 445 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | |
| 446 | IEEE80211_HT_AMPDU_PARM_DENSITY, |
| 447 | |
| 448 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| 449 | IEEE80211_HT_CAP_MAX_AMSDU | |
Ben Greear | bc0784d | 2012-12-12 16:56:20 -0800 | [diff] [blame] | 450 | IEEE80211_HT_CAP_SGI_20 | |
Pawel Kulakowski | a2e7495 | 2014-04-01 07:13:21 +0200 | [diff] [blame] | 451 | IEEE80211_HT_CAP_SGI_40 | |
Jouni Malinen | 9a07bf5 | 2014-04-15 19:13:56 +0300 | [diff] [blame] | 452 | IEEE80211_HT_CAP_LDPC_CODING | |
| 453 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 454 | .mcs = { |
| 455 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, |
| 456 | 0xff, 0xff, 0xff, 0xff, 0xff, }, |
| 457 | }, |
| 458 | }; |
| 459 | |
Johannes Berg | dd5ecfe | 2013-02-21 17:40:19 +0100 | [diff] [blame] | 460 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
| 461 | .vht_cap_info = |
| 462 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | |
| 463 | IEEE80211_VHT_CAP_SHORT_GI_80 | |
| 464 | IEEE80211_VHT_CAP_SHORT_GI_160 | |
| 465 | IEEE80211_VHT_CAP_RXSTBC_1 | |
| 466 | IEEE80211_VHT_CAP_RXSTBC_2 | |
| 467 | IEEE80211_VHT_CAP_RXSTBC_3 | |
| 468 | IEEE80211_VHT_CAP_RXSTBC_4 | |
| 469 | IEEE80211_VHT_CAP_TXSTBC | |
| 470 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | |
| 471 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
| 472 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | |
| 473 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | |
| 474 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), |
| 475 | .supp_mcs = { |
| 476 | .rx_mcs_map = cpu_to_le16(~0), |
| 477 | .tx_mcs_map = cpu_to_le16(~0), |
| 478 | }, |
| 479 | }; |
| 480 | |
Johannes Berg | c6f9d6c | 2013-02-11 14:27:08 +0100 | [diff] [blame] | 481 | static const u8 extended_capabilities[] = { |
| 482 | 0, 0, 0, 0, 0, 0, 0, |
| 483 | WLAN_EXT_CAPA8_OPMODE_NOTIF, |
| 484 | }; |
| 485 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 486 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 487 | const struct ieee80211_ops *ops) |
| 488 | { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 489 | struct ieee80211_local *local; |
Johannes Berg | 96f5e66 | 2009-02-12 00:51:53 +0100 | [diff] [blame] | 490 | int priv_size, i; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 491 | struct wiphy *wiphy; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 492 | bool use_chanctx; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 493 | |
Johannes Berg | c0af073 | 2012-07-26 14:42:10 +0200 | [diff] [blame] | 494 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
| 495 | !ops->add_interface || !ops->remove_interface || |
| 496 | !ops->configure_filter)) |
| 497 | return NULL; |
| 498 | |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 499 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
| 500 | return NULL; |
| 501 | |
Johannes Berg | e269d86 | 2012-07-26 14:46:32 +0200 | [diff] [blame] | 502 | /* check all or no channel context operations exist */ |
| 503 | i = !!ops->add_chanctx + !!ops->remove_chanctx + |
| 504 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + |
| 505 | !!ops->unassign_vif_chanctx; |
| 506 | if (WARN_ON(i != 0 && i != 5)) |
| 507 | return NULL; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 508 | use_chanctx = i == 5; |
Johannes Berg | e269d86 | 2012-07-26 14:46:32 +0200 | [diff] [blame] | 509 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 510 | /* Ensure 32-byte alignment of our private data and hw private data. |
| 511 | * We use the wiphy priv data for both our ieee80211_local and for |
| 512 | * the driver's private data |
| 513 | * |
| 514 | * In memory it'll be like this: |
| 515 | * |
| 516 | * +-------------------------+ |
| 517 | * | struct wiphy | |
| 518 | * +-------------------------+ |
| 519 | * | struct ieee80211_local | |
| 520 | * +-------------------------+ |
| 521 | * | driver's private data | |
| 522 | * +-------------------------+ |
| 523 | * |
| 524 | */ |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 525 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 526 | |
| 527 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); |
| 528 | |
| 529 | if (!wiphy) |
| 530 | return NULL; |
| 531 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 532 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
| 533 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 534 | wiphy->privid = mac80211_wiphy_privid; |
| 535 | |
Johannes Berg | 9bc383d | 2009-11-19 11:55:19 +0100 | [diff] [blame] | 536 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
| 537 | WIPHY_FLAG_4ADDR_AP | |
Johannes Berg | ee97192 | 2011-11-04 11:18:18 +0100 | [diff] [blame] | 538 | WIPHY_FLAG_4ADDR_STATION | |
Johannes Berg | 7c4ef71 | 2011-11-18 15:33:48 +0100 | [diff] [blame] | 539 | WIPHY_FLAG_REPORTS_OBSS | |
Johannes Berg | 81ddbb5 | 2012-03-26 18:47:18 +0200 | [diff] [blame] | 540 | WIPHY_FLAG_OFFCHAN_TX; |
| 541 | |
Johannes Berg | c6f9d6c | 2013-02-11 14:27:08 +0100 | [diff] [blame] | 542 | wiphy->extended_capabilities = extended_capabilities; |
| 543 | wiphy->extended_capabilities_mask = extended_capabilities; |
| 544 | wiphy->extended_capabilities_len = ARRAY_SIZE(extended_capabilities); |
| 545 | |
Johannes Berg | 81ddbb5 | 2012-03-26 18:47:18 +0200 | [diff] [blame] | 546 | if (ops->remain_on_channel) |
| 547 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 548 | |
Johannes Berg | b292219 | 2012-10-12 10:55:53 +0200 | [diff] [blame] | 549 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
| 550 | NL80211_FEATURE_SAE | |
Johannes Berg | 1ea6f9c | 2012-10-24 10:59:25 +0200 | [diff] [blame] | 551 | NL80211_FEATURE_HT_IBSS | |
Thomas Pedersen | a6dad6a | 2013-03-04 13:06:12 -0800 | [diff] [blame] | 552 | NL80211_FEATURE_VIF_TXPOWER | |
| 553 | NL80211_FEATURE_USERSPACE_MPM; |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 554 | |
Sam Leffler | cd2bb51 | 2012-10-11 21:03:35 -0700 | [diff] [blame] | 555 | if (!ops->hw_scan) |
Antonio Quartulli | 5c95b94 | 2012-10-16 08:39:22 +0200 | [diff] [blame] | 556 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
| 557 | NL80211_FEATURE_AP_SCAN; |
| 558 | |
Sam Leffler | cd2bb51 | 2012-10-11 21:03:35 -0700 | [diff] [blame] | 559 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 560 | if (!ops->set_key) |
| 561 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
Johannes Berg | 18a8365 | 2009-03-31 12:12:05 +0200 | [diff] [blame] | 562 | |
Johannes Berg | 0c1ad2c | 2009-12-23 13:15:39 +0100 | [diff] [blame] | 563 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 564 | |
| 565 | local = wiphy_priv(wiphy); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 566 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 567 | local->hw.wiphy = wiphy; |
| 568 | |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 569 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 570 | |
| 571 | local->ops = ops; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 572 | local->use_chanctx = use_chanctx; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 573 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 574 | /* set up some defaults */ |
| 575 | local->hw.queues = 1; |
| 576 | local->hw.max_rates = 1; |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 577 | local->hw.max_report_rates = 0; |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 578 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Helmut Schaa | 39e6871 | 2011-08-05 11:46:19 +0200 | [diff] [blame] | 579 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 580 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 581 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| 582 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 583 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
| 584 | IEEE80211_RADIOTAP_MCS_HAVE_GI | |
| 585 | IEEE80211_RADIOTAP_MCS_HAVE_BW; |
Johannes Berg | 5164892 | 2012-11-22 23:00:18 +0100 | [diff] [blame] | 586 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
| 587 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; |
Alexander Bondar | 219c386 | 2013-01-22 16:52:23 +0200 | [diff] [blame] | 588 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
| 589 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; |
Johannes Berg | 1ea6f9c | 2012-10-24 10:59:25 +0200 | [diff] [blame] | 590 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 591 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
Johannes Berg | dd5ecfe | 2013-02-21 17:40:19 +0100 | [diff] [blame] | 592 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 593 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 594 | INIT_LIST_HEAD(&local->interfaces); |
YOSHIFUJI Hideaki / 吉藤英明 | 2f787b0 | 2010-04-04 17:59:30 +0000 | [diff] [blame] | 595 | |
| 596 | __hw_addr_init(&local->mc_list); |
| 597 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 598 | mutex_init(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 599 | mutex_init(&local->mtx); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 600 | |
Johannes Berg | ad0e2b5 | 2010-06-01 10:19:19 +0200 | [diff] [blame] | 601 | mutex_init(&local->key_mtx); |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 602 | spin_lock_init(&local->filter_lock); |
Christian Lamparter | f9e124f | 2013-02-04 17:44:44 +0000 | [diff] [blame] | 603 | spin_lock_init(&local->rx_path_lock); |
Kalle Valo | ce7c911 | 2008-12-18 23:35:20 +0200 | [diff] [blame] | 604 | spin_lock_init(&local->queue_stop_reason_lock); |
| 605 | |
Michal Kazior | d01a1e6 | 2012-06-26 14:37:16 +0200 | [diff] [blame] | 606 | INIT_LIST_HEAD(&local->chanctx_list); |
| 607 | mutex_init(&local->chanctx_mtx); |
| 608 | |
Johannes Berg | c2b1345 | 2008-09-11 00:01:55 +0200 | [diff] [blame] | 609 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 610 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 611 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
| 612 | |
Simon Wunderlich | 164eb02 | 2013-02-08 18:16:20 +0100 | [diff] [blame] | 613 | INIT_WORK(&local->radar_detected_work, |
| 614 | ieee80211_dfs_radar_detected_work); |
| 615 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 616 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 617 | local->smps_mode = IEEE80211_SMPS_OFF; |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 618 | |
Kalle Valo | 520eb82 | 2008-12-18 23:35:27 +0200 | [diff] [blame] | 619 | INIT_WORK(&local->dynamic_ps_enable_work, |
| 620 | ieee80211_dynamic_ps_enable_work); |
| 621 | INIT_WORK(&local->dynamic_ps_disable_work, |
| 622 | ieee80211_dynamic_ps_disable_work); |
| 623 | setup_timer(&local->dynamic_ps_timer, |
| 624 | ieee80211_dynamic_ps_timer, (unsigned long) local); |
| 625 | |
Luciano Coelho | 85a9994 | 2011-05-12 16:28:29 +0300 | [diff] [blame] | 626 | INIT_WORK(&local->sched_scan_stopped_work, |
| 627 | ieee80211_sched_scan_stopped_work); |
| 628 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 629 | spin_lock_init(&local->ack_status_lock); |
| 630 | idr_init(&local->ack_status_frames); |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 631 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 632 | sta_info_init(local); |
| 633 | |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 634 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
Johannes Berg | 2a577d9 | 2009-03-23 17:28:37 +0100 | [diff] [blame] | 635 | skb_queue_head_init(&local->pending[i]); |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 636 | atomic_set(&local->agg_queue_stop[i], 0); |
| 637 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 638 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
| 639 | (unsigned long)local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 640 | |
| 641 | tasklet_init(&local->tasklet, |
| 642 | ieee80211_tasklet_handler, |
| 643 | (unsigned long) local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 644 | |
| 645 | skb_queue_head_init(&local->skb_queue); |
| 646 | skb_queue_head_init(&local->skb_queue_unreliable); |
| 647 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 648 | ieee80211_led_names(local); |
| 649 | |
Johannes Berg | 2eb278e | 2012-06-05 14:28:42 +0200 | [diff] [blame] | 650 | ieee80211_roc_setup(local); |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 651 | |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 652 | return &local->hw; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 653 | } |
| 654 | EXPORT_SYMBOL(ieee80211_alloc_hw); |
| 655 | |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 656 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 657 | { |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 658 | bool have_wep = !(IS_ERR(local->wep_tx_tfm) || |
| 659 | IS_ERR(local->wep_rx_tfm)); |
| 660 | bool have_mfp = local->hw.flags & IEEE80211_HW_MFP_CAPABLE; |
| 661 | const struct ieee80211_cipher_scheme *cs = local->hw.cipher_schemes; |
| 662 | int n_suites = 0, r = 0, w = 0; |
| 663 | u32 *suites; |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 664 | static const u32 cipher_suites[] = { |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 665 | /* keep WEP first, it may be removed below */ |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 666 | WLAN_CIPHER_SUITE_WEP40, |
| 667 | WLAN_CIPHER_SUITE_WEP104, |
| 668 | WLAN_CIPHER_SUITE_TKIP, |
| 669 | WLAN_CIPHER_SUITE_CCMP, |
| 670 | |
| 671 | /* keep last -- depends on hw flags! */ |
| 672 | WLAN_CIPHER_SUITE_AES_CMAC |
| 673 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 674 | |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 675 | /* Driver specifies the ciphers, we have nothing to do... */ |
| 676 | if (local->hw.wiphy->cipher_suites && have_wep) |
| 677 | return 0; |
| 678 | |
| 679 | /* Set up cipher suites if driver relies on mac80211 cipher defs */ |
| 680 | if (!local->hw.wiphy->cipher_suites && !cs) { |
| 681 | local->hw.wiphy->cipher_suites = cipher_suites; |
| 682 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| 683 | |
| 684 | if (!have_mfp) |
| 685 | local->hw.wiphy->n_cipher_suites--; |
| 686 | |
| 687 | if (!have_wep) { |
| 688 | local->hw.wiphy->cipher_suites += 2; |
| 689 | local->hw.wiphy->n_cipher_suites -= 2; |
| 690 | } |
| 691 | |
| 692 | return 0; |
| 693 | } |
| 694 | |
| 695 | if (!local->hw.wiphy->cipher_suites) { |
| 696 | /* |
| 697 | * Driver specifies cipher schemes only |
| 698 | * We start counting ciphers defined by schemes, TKIP and CCMP |
| 699 | */ |
| 700 | n_suites = local->hw.n_cipher_schemes + 2; |
| 701 | |
| 702 | /* check if we have WEP40 and WEP104 */ |
| 703 | if (have_wep) |
| 704 | n_suites += 2; |
| 705 | |
| 706 | /* check if we have AES_CMAC */ |
| 707 | if (have_mfp) |
| 708 | n_suites++; |
| 709 | |
| 710 | suites = kmalloc(sizeof(u32) * n_suites, GFP_KERNEL); |
| 711 | if (!suites) |
| 712 | return -ENOMEM; |
| 713 | |
| 714 | suites[w++] = WLAN_CIPHER_SUITE_CCMP; |
| 715 | suites[w++] = WLAN_CIPHER_SUITE_TKIP; |
| 716 | |
| 717 | if (have_wep) { |
| 718 | suites[w++] = WLAN_CIPHER_SUITE_WEP40; |
| 719 | suites[w++] = WLAN_CIPHER_SUITE_WEP104; |
| 720 | } |
| 721 | |
| 722 | if (have_mfp) |
| 723 | suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC; |
| 724 | |
| 725 | for (r = 0; r < local->hw.n_cipher_schemes; r++) |
| 726 | suites[w++] = cs[r].cipher; |
| 727 | } else { |
| 728 | /* Driver provides cipher suites, but we need to exclude WEP */ |
| 729 | suites = kmemdup(local->hw.wiphy->cipher_suites, |
| 730 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, |
| 731 | GFP_KERNEL); |
| 732 | if (!suites) |
| 733 | return -ENOMEM; |
| 734 | |
| 735 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
| 736 | u32 suite = local->hw.wiphy->cipher_suites[r]; |
| 737 | |
| 738 | if (suite == WLAN_CIPHER_SUITE_WEP40 || |
| 739 | suite == WLAN_CIPHER_SUITE_WEP104) |
| 740 | continue; |
| 741 | suites[w++] = suite; |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | local->hw.wiphy->cipher_suites = suites; |
| 746 | local->hw.wiphy->n_cipher_suites = w; |
| 747 | local->wiphy_ciphers_allocated = true; |
| 748 | |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | int ieee80211_register_hw(struct ieee80211_hw *hw) |
| 753 | { |
| 754 | struct ieee80211_local *local = hw_to_local(hw); |
| 755 | int result, i; |
| 756 | enum ieee80211_band band; |
| 757 | int channels, max_bitrates; |
| 758 | bool supp_ht, supp_vht; |
| 759 | netdev_features_t feature_whitelist; |
| 760 | struct cfg80211_chan_def dflt_chandef = {}; |
| 761 | |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 762 | if (hw->flags & IEEE80211_HW_QUEUE_CONTROL && |
| 763 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
| 764 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) |
| 765 | return -EINVAL; |
| 766 | |
Larry Finger | 38bb3e9 | 2011-05-05 18:48:47 -0500 | [diff] [blame] | 767 | #ifdef CONFIG_PM |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 768 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 769 | return -EINVAL; |
Johannes Berg | dfb89c5 | 2012-06-27 09:23:48 +0200 | [diff] [blame] | 770 | #endif |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 771 | |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 772 | if (!local->use_chanctx) { |
| 773 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
| 774 | const struct ieee80211_iface_combination *comb; |
| 775 | |
| 776 | comb = &local->hw.wiphy->iface_combinations[i]; |
| 777 | |
| 778 | if (comb->num_different_channels > 1) |
| 779 | return -EINVAL; |
| 780 | } |
Johannes Berg | 746a336 | 2012-10-22 15:20:53 +0200 | [diff] [blame] | 781 | } else { |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 782 | /* |
| 783 | * WDS is currently prohibited when channel contexts are used |
| 784 | * because there's no clear definition of which channel WDS |
| 785 | * type interfaces use |
| 786 | */ |
| 787 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) |
| 788 | return -EINVAL; |
Simon Wunderlich | 164eb02 | 2013-02-08 18:16:20 +0100 | [diff] [blame] | 789 | |
| 790 | /* DFS currently not supported with channel context drivers */ |
| 791 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
| 792 | const struct ieee80211_iface_combination *comb; |
| 793 | |
| 794 | comb = &local->hw.wiphy->iface_combinations[i]; |
| 795 | |
| 796 | if (comb->radar_detect_widths) |
| 797 | return -EINVAL; |
| 798 | } |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 799 | } |
| 800 | |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 801 | /* Only HW csum features are currently compatible with mac80211 */ |
| 802 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 803 | NETIF_F_HW_CSUM; |
| 804 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) |
| 805 | return -EINVAL; |
| 806 | |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 807 | if (hw->max_report_rates == 0) |
| 808 | hw->max_report_rates = hw->max_rates; |
| 809 | |
Johannes Berg | 04ecd25 | 2012-09-11 14:34:12 +0200 | [diff] [blame] | 810 | local->rx_chains = 1; |
| 811 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 812 | /* |
| 813 | * generic code guarantees at least one band, |
| 814 | * set this very early because much code assumes |
| 815 | * that hw.conf.channel is assigned |
| 816 | */ |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 817 | channels = 0; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 818 | max_bitrates = 0; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 819 | supp_ht = false; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 820 | supp_vht = false; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 821 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 822 | struct ieee80211_supported_band *sband; |
| 823 | |
| 824 | sband = local->hw.wiphy->bands[band]; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 825 | if (!sband) |
| 826 | continue; |
Karl Beldan | fffa4b1 | 2013-04-15 19:04:06 +0200 | [diff] [blame] | 827 | |
| 828 | if (!dflt_chandef.chan) { |
| 829 | cfg80211_chandef_create(&dflt_chandef, |
| 830 | &sband->channels[0], |
| 831 | NL80211_CHAN_NO_HT); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 832 | /* init channel we're on */ |
Karl Beldan | fffa4b1 | 2013-04-15 19:04:06 +0200 | [diff] [blame] | 833 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
| 834 | local->hw.conf.chandef = dflt_chandef; |
| 835 | local->_oper_chandef = dflt_chandef; |
| 836 | } |
| 837 | local->monitor_chandef = dflt_chandef; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 838 | } |
Karl Beldan | fffa4b1 | 2013-04-15 19:04:06 +0200 | [diff] [blame] | 839 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 840 | channels += sband->n_channels; |
| 841 | |
| 842 | if (max_bitrates < sband->n_bitrates) |
| 843 | max_bitrates = sband->n_bitrates; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 844 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 845 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
Johannes Berg | 04ecd25 | 2012-09-11 14:34:12 +0200 | [diff] [blame] | 846 | |
| 847 | if (sband->ht_cap.ht_supported) |
| 848 | local->rx_chains = |
| 849 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), |
| 850 | local->rx_chains); |
| 851 | |
| 852 | /* TODO: consider VHT for RX chains, hopefully it's the same */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 853 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 854 | |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 855 | /* if low-level driver supports AP, we also support VLAN */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 856 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
| 857 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 858 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 859 | } |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 860 | |
| 861 | /* mac80211 always supports monitor */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 862 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
| 863 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); |
| 864 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 865 | /* mac80211 doesn't support more than one IBSS interface right now */ |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 866 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
| 867 | const struct ieee80211_iface_combination *c; |
| 868 | int j; |
| 869 | |
| 870 | c = &hw->wiphy->iface_combinations[i]; |
| 871 | |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 872 | for (j = 0; j < c->n_limits; j++) |
| 873 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && |
| 874 | c->limits[j].max > 1) |
| 875 | return -EINVAL; |
| 876 | } |
| 877 | |
Johannes Berg | 5b0ec94 | 2014-01-06 16:02:34 +0100 | [diff] [blame] | 878 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
| 879 | sizeof(void *) * channels, GFP_KERNEL); |
| 880 | if (!local->int_scan_req) |
| 881 | return -ENOMEM; |
| 882 | |
| 883 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 884 | if (!local->hw.wiphy->bands[band]) |
| 885 | continue; |
| 886 | local->int_scan_req->rates[band] = (u32) -1; |
| 887 | } |
| 888 | |
Johannes Berg | 5eb5a52 | 2010-08-25 14:34:01 +0200 | [diff] [blame] | 889 | #ifndef CONFIG_MAC80211_MESH |
| 890 | /* mesh depends on Kconfig, but drivers should set it if they want */ |
| 891 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); |
| 892 | #endif |
| 893 | |
Javier Cardona | 1570ca5 | 2011-04-07 15:08:35 -0700 | [diff] [blame] | 894 | /* if the underlying driver supports mesh, mac80211 will (at least) |
| 895 | * provide routing of mesh authentication frames to userspace */ |
| 896 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) |
| 897 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; |
| 898 | |
Johannes Berg | a621fa4 | 2010-08-27 14:26:54 +0300 | [diff] [blame] | 899 | /* mac80211 supports control port protocol changing */ |
| 900 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; |
| 901 | |
andrea merello | 5251207 | 2014-01-19 22:21:49 +0100 | [diff] [blame] | 902 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) { |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 903 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
andrea merello | 5251207 | 2014-01-19 22:21:49 +0100 | [diff] [blame] | 904 | } else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) { |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 905 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
andrea merello | 5251207 | 2014-01-19 22:21:49 +0100 | [diff] [blame] | 906 | if (hw->max_signal <= 0) { |
| 907 | result = -EINVAL; |
| 908 | goto fail_wiphy_register; |
| 909 | } |
| 910 | } |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 911 | |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 912 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
| 913 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), |
| 914 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); |
| 915 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 916 | /* |
| 917 | * Calculate scan IE length -- we need this to alloc |
| 918 | * memory and to subtract from the driver limit. It |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 919 | * includes the DS Params, (extended) supported rates, and HT |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 920 | * information -- SSID is the driver's responsibility. |
| 921 | */ |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 922 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
| 923 | 3 /* DS Params */; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 924 | if (supp_ht) |
| 925 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 926 | |
Karl Beldan | d0e6c21 | 2013-03-25 16:26:58 +0100 | [diff] [blame] | 927 | if (supp_vht) |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 928 | local->scan_ies_len += |
Mahesh Palivela | d495028 | 2012-10-10 11:25:40 +0000 | [diff] [blame] | 929 | 2 + sizeof(struct ieee80211_vht_cap); |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 930 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 931 | if (!local->ops->hw_scan) { |
| 932 | /* For hw_scan, driver needs to set these up. */ |
| 933 | local->hw.wiphy->max_scan_ssids = 4; |
| 934 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; |
| 935 | } |
| 936 | |
| 937 | /* |
| 938 | * If the driver supports any scan IEs, then assume the |
| 939 | * limit includes the IEs mac80211 will add, otherwise |
| 940 | * leave it at zero and let the driver sort it out; we |
| 941 | * still pass our IEs to the driver but userspace will |
| 942 | * not be allowed to in that case. |
| 943 | */ |
| 944 | if (local->hw.wiphy->max_scan_ie_len) |
| 945 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; |
| 946 | |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 947 | WARN_ON(!ieee80211_cs_list_valid(local->hw.cipher_schemes, |
| 948 | local->hw.n_cipher_schemes)); |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 949 | |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 950 | result = ieee80211_init_cipher_suites(local); |
| 951 | if (result < 0) |
| 952 | goto fail_wiphy_register; |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 953 | |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 954 | if (!local->ops->remain_on_channel) |
| 955 | local->hw.wiphy->max_remain_on_channel_duration = 5000; |
Johannes Berg | a293911 | 2010-12-14 17:54:28 +0100 | [diff] [blame] | 956 | |
Arik Nemtsov | dfe018b | 2011-09-28 14:12:52 +0300 | [diff] [blame] | 957 | /* mac80211 based drivers don't support internal TDLS setup */ |
| 958 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) |
| 959 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; |
| 960 | |
Andrei Otcheretianski | 0d06d9b | 2014-05-09 14:11:47 +0300 | [diff] [blame] | 961 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM; |
| 962 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 963 | result = wiphy_register(local->hw.wiphy); |
| 964 | if (result < 0) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 965 | goto fail_wiphy_register; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 966 | |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 967 | /* |
| 968 | * We use the number of queues for feature tests (QoS, HT) internally |
| 969 | * so restrict them appropriately. |
| 970 | */ |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 971 | if (hw->queues > IEEE80211_MAX_QUEUES) |
| 972 | hw->queues = IEEE80211_MAX_QUEUES; |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 973 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 974 | local->workqueue = |
Kees Cook | d853754 | 2013-07-03 15:04:57 -0700 | [diff] [blame] | 975 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 976 | if (!local->workqueue) { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 977 | result = -ENOMEM; |
| 978 | goto fail_workqueue; |
| 979 | } |
| 980 | |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 981 | /* |
| 982 | * The hardware needs headroom for sending the frame, |
| 983 | * and we need some headroom for passing the frame to monitor |
| 984 | * interfaces, but never both at the same time. |
| 985 | */ |
Jiri Benc | 33ccad3 | 2007-07-18 17:10:44 +0200 | [diff] [blame] | 986 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
Helmut Schaa | a2fe816 | 2011-10-11 18:08:54 +0200 | [diff] [blame] | 987 | IEEE80211_TX_STATUS_HEADROOM); |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 988 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 989 | debugfs_hw_add(local); |
| 990 | |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 991 | /* |
| 992 | * if the driver doesn't specify a max listen interval we |
| 993 | * use 5 which should be a safe default |
| 994 | */ |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 995 | if (local->hw.max_listen_interval == 0) |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 996 | local->hw.max_listen_interval = 5; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 997 | |
| 998 | local->hw.conf.listen_interval = local->hw.max_listen_interval; |
| 999 | |
Juuso Oikarinen | ff61638 | 2010-06-09 09:51:52 +0300 | [diff] [blame] | 1000 | local->dynamic_ps_forced_timeout = -1; |
Juuso Oikarinen | 195e294 | 2010-04-27 12:47:40 +0300 | [diff] [blame] | 1001 | |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 1002 | result = ieee80211_wep_init(local); |
John W. Linville | 3473187 | 2010-07-07 15:07:49 -0400 | [diff] [blame] | 1003 | if (result < 0) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1004 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
| 1005 | result); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 1006 | |
Karl Beldan | 24d4730 | 2013-11-19 17:12:05 +0100 | [diff] [blame] | 1007 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
| 1008 | |
Mohammed Shafi Shajakhan | b57e6b5 | 2012-02-09 19:59:43 +0530 | [diff] [blame] | 1009 | ieee80211_led_init(local); |
| 1010 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1011 | rtnl_lock(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1012 | |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 1013 | result = ieee80211_init_rate_ctrl_alg(local, |
| 1014 | hw->rate_control_algorithm); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1015 | if (result < 0) { |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1016 | wiphy_debug(local->hw.wiphy, |
| 1017 | "Failed to initialize rate control algorithm\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1018 | goto fail_rate; |
| 1019 | } |
| 1020 | |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 1021 | /* add one default STA interface if supported */ |
| 1022 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { |
| 1023 | result = ieee80211_if_add(local, "wlan%d", NULL, |
| 1024 | NL80211_IFTYPE_STATION, NULL); |
| 1025 | if (result) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1026 | wiphy_warn(local->hw.wiphy, |
| 1027 | "Failed to add default virtual iface\n"); |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 1028 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1029 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1030 | rtnl_unlock(); |
| 1031 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1032 | local->network_latency_notifier.notifier_call = |
| 1033 | ieee80211_max_network_latency; |
| 1034 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, |
| 1035 | &local->network_latency_notifier); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1036 | if (result) { |
| 1037 | rtnl_lock(); |
| 1038 | goto fail_pm_qos; |
| 1039 | } |
| 1040 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1041 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1042 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
| 1043 | result = register_inetaddr_notifier(&local->ifa_notifier); |
| 1044 | if (result) |
| 1045 | goto fail_ifa; |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1046 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1047 | |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 1048 | #if IS_ENABLED(CONFIG_IPV6) |
| 1049 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; |
| 1050 | result = register_inet6addr_notifier(&local->ifa6_notifier); |
| 1051 | if (result) |
| 1052 | goto fail_ifa6; |
| 1053 | #endif |
| 1054 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1055 | return 0; |
| 1056 | |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 1057 | #if IS_ENABLED(CONFIG_IPV6) |
| 1058 | fail_ifa6: |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 1059 | #ifdef CONFIG_INET |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 1060 | unregister_inetaddr_notifier(&local->ifa_notifier); |
| 1061 | #endif |
| 1062 | #endif |
| 1063 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1064 | fail_ifa: |
| 1065 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 1066 | &local->network_latency_notifier); |
| 1067 | rtnl_lock(); |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 1068 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1069 | fail_pm_qos: |
| 1070 | ieee80211_led_exit(local); |
| 1071 | ieee80211_remove_interfaces(local); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1072 | fail_rate: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1073 | rtnl_unlock(); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 1074 | ieee80211_wep_free(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1075 | sta_info_stop(local); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1076 | destroy_workqueue(local->workqueue); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1077 | fail_workqueue: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1078 | wiphy_unregister(local->hw.wiphy); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1079 | fail_wiphy_register: |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1080 | if (local->wiphy_ciphers_allocated) |
| 1081 | kfree(local->hw.wiphy->cipher_suites); |
Johannes Berg | 11ba964 | 2009-08-19 19:45:50 +0200 | [diff] [blame] | 1082 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1083 | return result; |
| 1084 | } |
| 1085 | EXPORT_SYMBOL(ieee80211_register_hw); |
| 1086 | |
Johannes Berg | 06d181a | 2014-02-04 20:51:09 +0100 | [diff] [blame] | 1087 | void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi, |
| 1088 | struct net_device *napi_dev, |
| 1089 | int (*poll)(struct napi_struct *, int), |
| 1090 | int weight) |
| 1091 | { |
| 1092 | struct ieee80211_local *local = hw_to_local(hw); |
| 1093 | |
| 1094 | netif_napi_add(napi_dev, napi, poll, weight); |
| 1095 | local->napi = napi; |
| 1096 | } |
| 1097 | EXPORT_SYMBOL_GPL(ieee80211_napi_add); |
| 1098 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1099 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
| 1100 | { |
| 1101 | struct ieee80211_local *local = hw_to_local(hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1102 | |
| 1103 | tasklet_kill(&local->tx_pending_tasklet); |
| 1104 | tasklet_kill(&local->tasklet); |
| 1105 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1106 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 1107 | &local->network_latency_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1108 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1109 | unregister_inetaddr_notifier(&local->ifa_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1110 | #endif |
Johannes Berg | a65240c | 2013-01-14 15:14:34 +0100 | [diff] [blame] | 1111 | #if IS_ENABLED(CONFIG_IPV6) |
| 1112 | unregister_inet6addr_notifier(&local->ifa6_notifier); |
| 1113 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1114 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1115 | rtnl_lock(); |
| 1116 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1117 | /* |
| 1118 | * At this point, interface list manipulations are fine |
| 1119 | * because the driver cannot be handing us frames any |
| 1120 | * more and the tasklet is killed. |
| 1121 | */ |
Johannes Berg | 7563652 | 2008-07-09 14:40:35 +0200 | [diff] [blame] | 1122 | ieee80211_remove_interfaces(local); |
Johannes Berg | 5b2812e | 2007-09-26 14:27:23 +0200 | [diff] [blame] | 1123 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1124 | rtnl_unlock(); |
| 1125 | |
Christian Lamparter | 258086a | 2010-08-22 23:48:25 +0200 | [diff] [blame] | 1126 | cancel_work_sync(&local->restart_work); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1127 | cancel_work_sync(&local->reconfig_filter); |
Johannes Berg | 18db594 | 2013-11-06 10:34:36 +0100 | [diff] [blame] | 1128 | flush_work(&local->sched_scan_stopped_work); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1129 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1130 | ieee80211_clear_tx_pending(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1131 | rate_control_deinitialize(local); |
| 1132 | |
Joe Perches | f64f9e7 | 2009-11-29 16:55:45 -0800 | [diff] [blame] | 1133 | if (skb_queue_len(&local->skb_queue) || |
| 1134 | skb_queue_len(&local->skb_queue_unreliable)) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1135 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1136 | skb_queue_purge(&local->skb_queue); |
| 1137 | skb_queue_purge(&local->skb_queue_unreliable); |
| 1138 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1139 | destroy_workqueue(local->workqueue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1140 | wiphy_unregister(local->hw.wiphy); |
Stanislaw Gruszka | ecb4433 | 2011-08-12 14:00:59 +0200 | [diff] [blame] | 1141 | sta_info_stop(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1142 | ieee80211_wep_free(local); |
| 1143 | ieee80211_led_exit(local); |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 1144 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1145 | } |
| 1146 | EXPORT_SYMBOL(ieee80211_unregister_hw); |
| 1147 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1148 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
| 1149 | { |
| 1150 | WARN_ONCE(1, "Have pending ack frames!\n"); |
| 1151 | kfree_skb(p); |
| 1152 | return 0; |
| 1153 | } |
| 1154 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1155 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
| 1156 | { |
| 1157 | struct ieee80211_local *local = hw_to_local(hw); |
| 1158 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1159 | mutex_destroy(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 1160 | mutex_destroy(&local->mtx); |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1161 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1162 | if (local->wiphy_ciphers_allocated) |
| 1163 | kfree(local->hw.wiphy->cipher_suites); |
| 1164 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1165 | idr_for_each(&local->ack_status_frames, |
| 1166 | ieee80211_free_ack_frame, NULL); |
| 1167 | idr_destroy(&local->ack_status_frames); |
| 1168 | |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 1169 | kfree(rcu_access_pointer(local->tx_latency)); |
| 1170 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1171 | wiphy_free(local->hw.wiphy); |
| 1172 | } |
| 1173 | EXPORT_SYMBOL(ieee80211_free_hw); |
| 1174 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1175 | static int __init ieee80211_init(void) |
| 1176 | { |
| 1177 | struct sk_buff *skb; |
| 1178 | int ret; |
| 1179 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1180 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
| 1181 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + |
Johannes Berg | c6a1fa1 | 2008-10-07 12:04:32 +0200 | [diff] [blame] | 1182 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1183 | |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1184 | ret = rc80211_minstrel_init(); |
| 1185 | if (ret) |
| 1186 | return ret; |
| 1187 | |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1188 | ret = rc80211_minstrel_ht_init(); |
| 1189 | if (ret) |
| 1190 | goto err_minstrel; |
| 1191 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1192 | ret = ieee80211_iface_init(); |
| 1193 | if (ret) |
| 1194 | goto err_netdev; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 1195 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1196 | return 0; |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1197 | err_netdev: |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1198 | rc80211_minstrel_ht_exit(); |
| 1199 | err_minstrel: |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1200 | rc80211_minstrel_exit(); |
| 1201 | |
| 1202 | return ret; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1203 | } |
| 1204 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1205 | static void __exit ieee80211_exit(void) |
| 1206 | { |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1207 | rc80211_minstrel_ht_exit(); |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1208 | rc80211_minstrel_exit(); |
Johannes Berg | ac71c69 | 2007-10-28 14:17:44 +0100 | [diff] [blame] | 1209 | |
Johannes Berg | bf7cd94 | 2013-02-15 14:40:31 +0100 | [diff] [blame] | 1210 | ieee80211s_stop(); |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 1211 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1212 | ieee80211_iface_exit(); |
Johannes Berg | d07c7cf | 2011-05-14 11:04:51 +0200 | [diff] [blame] | 1213 | |
| 1214 | rcu_barrier(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1215 | } |
| 1216 | |
| 1217 | |
Johannes Berg | ca9938f | 2007-09-11 12:50:32 +0200 | [diff] [blame] | 1218 | subsys_initcall(ieee80211_init); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1219 | module_exit(ieee80211_exit); |
| 1220 | |
| 1221 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); |
| 1222 | MODULE_LICENSE("GPL"); |