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> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <net/mac80211.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 12 | #include <linux/module.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/netdevice.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/slab.h> |
| 17 | #include <linux/skbuff.h> |
| 18 | #include <linux/etherdevice.h> |
| 19 | #include <linux/if_arp.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 20 | #include <linux/rtnetlink.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 21 | #include <linux/bitmap.h> |
Jean Pihet | e8db0be | 2011-08-25 15:35:03 +0200 | [diff] [blame] | 22 | #include <linux/pm_qos.h> |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 23 | #include <linux/inetdevice.h> |
Eric W. Biederman | 881d966 | 2007-09-17 11:56:21 -0700 | [diff] [blame] | 24 | #include <net/net_namespace.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 25 | #include <net/cfg80211.h> |
| 26 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 27 | #include "ieee80211_i.h" |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 28 | #include "driver-ops.h" |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 29 | #include "rate.h" |
Luis Carlos Cobo | f7a9214 | 2008-02-23 15:17:18 +0100 | [diff] [blame] | 30 | #include "mesh.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 31 | #include "wep.h" |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 32 | #include "led.h" |
Michael Wu | e0eb685 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 33 | #include "cfg.h" |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 34 | #include "debugfs.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 35 | |
Johannes Berg | 681c4d0 | 2011-01-12 13:40:33 +0100 | [diff] [blame] | 36 | static struct lock_class_key ieee80211_rx_skb_queue_class; |
| 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 | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 96 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 97 | { |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 98 | struct ieee80211_channel *chan; |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 99 | int ret = 0; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 100 | int power; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 101 | enum nl80211_channel_type channel_type; |
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 | |
Johannes Berg | cb121ba | 2008-10-14 16:38:55 +0200 | [diff] [blame] | 104 | might_sleep(); |
| 105 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 106 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 107 | if (local->scan_channel) { |
| 108 | chan = local->scan_channel; |
Ben Greear | 4f2e9d9 | 2011-02-07 13:44:35 -0800 | [diff] [blame] | 109 | /* If scanning on oper channel, use whatever channel-type |
| 110 | * is currently in use. |
| 111 | */ |
| 112 | if (chan == local->oper_channel) |
| 113 | channel_type = local->_oper_channel_type; |
| 114 | else |
| 115 | channel_type = NL80211_CHAN_NO_HT; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 116 | } else if (local->tmp_channel) { |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 117 | chan = local->tmp_channel; |
Johannes Berg | b8bc4b0 | 2009-12-23 13:15:42 +0100 | [diff] [blame] | 118 | channel_type = local->tmp_channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 119 | } else { |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 120 | chan = local->oper_channel; |
Johannes Berg | 0aaffa9 | 2010-05-05 15:28:27 +0200 | [diff] [blame] | 121 | channel_type = local->_oper_channel_type; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 122 | } |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 123 | |
| 124 | if (chan != local->oper_channel || |
| 125 | channel_type != local->_oper_channel_type) |
| 126 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
| 127 | else |
| 128 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; |
| 129 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 130 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 131 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 132 | if (offchannel_flag || chan != local->hw.conf.channel || |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 133 | channel_type != local->hw.conf.channel_type) { |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 134 | local->hw.conf.channel = chan; |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 135 | local->hw.conf.channel_type = channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 136 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
| 137 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 138 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 139 | if (!conf_is_ht(&local->hw.conf)) { |
| 140 | /* |
| 141 | * mac80211.h documents that this is only valid |
| 142 | * when the channel is set to an HT type, and |
| 143 | * that otherwise STATIC is used. |
| 144 | */ |
| 145 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; |
| 146 | } else if (local->hw.conf.smps_mode != local->smps_mode) { |
| 147 | local->hw.conf.smps_mode = local->smps_mode; |
| 148 | changed |= IEEE80211_CONF_CHANGE_SMPS; |
| 149 | } |
| 150 | |
Dmitry TARNYAGIN | cd6c524 | 2011-12-12 12:58:43 +0100 | [diff] [blame] | 151 | if (test_bit(SCAN_SW_SCANNING, &local->scanning) || |
Ben Greear | 8a69067 | 2012-04-17 10:54:16 -0700 | [diff] [blame] | 152 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || |
Johannes Berg | 04b7b2f | 2012-09-05 13:41:37 +0200 | [diff] [blame] | 153 | test_bit(SCAN_HW_SCANNING, &local->scanning) || |
| 154 | !local->ap_power_level) |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 155 | power = chan->max_power; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 156 | else |
Johannes Berg | 04b7b2f | 2012-09-05 13:41:37 +0200 | [diff] [blame] | 157 | power = min(chan->max_power, local->ap_power_level); |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 158 | |
Johannes Berg | 47afbaf | 2009-04-07 15:22:28 +0200 | [diff] [blame] | 159 | if (local->user_power_level >= 0) |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 160 | power = min(power, local->user_power_level); |
| 161 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 162 | if (local->hw.conf.power_level != power) { |
| 163 | changed |= IEEE80211_CONF_CHANGE_POWER; |
| 164 | local->hw.conf.power_level = power; |
| 165 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 166 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 167 | if (changed && local->open_count) { |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 168 | ret = drv_config(local, changed); |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 169 | /* |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 170 | * Goal: |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 171 | * HW reconfiguration should never fail, the driver has told |
| 172 | * 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] | 173 | * |
| 174 | * Current status: |
| 175 | * rfkill is not integrated with mac80211 and a |
| 176 | * configuration command can thus fail if hardware rfkill |
| 177 | * is enabled |
| 178 | * |
| 179 | * FIXME: integrate rfkill with mac80211 and then add this |
| 180 | * WARN_ON() back |
| 181 | * |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 182 | */ |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 183 | /* WARN_ON(ret); */ |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 184 | } |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 185 | |
| 186 | return ret; |
| 187 | } |
| 188 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 189 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| 190 | u32 changed) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 191 | { |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 192 | struct ieee80211_local *local = sdata->local; |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 193 | static const u8 zero[ETH_ALEN] = { 0 }; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 194 | |
| 195 | if (!changed) |
| 196 | return; |
| 197 | |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 198 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
Johannes Berg | 66e67e4 | 2012-01-20 13:55:27 +0100 | [diff] [blame] | 199 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 200 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 201 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
| 202 | else if (sdata->vif.type == NL80211_IFTYPE_AP) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 203 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 204 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
| 205 | sdata->vif.bss_conf.bssid = NULL; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 206 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 207 | sdata->vif.bss_conf.bssid = zero; |
Johannes Berg | f142c6b | 2012-06-18 20:07:15 +0200 | [diff] [blame] | 208 | } else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) { |
| 209 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
| 210 | WARN_ONCE(changed & ~(BSS_CHANGED_IDLE), |
| 211 | "P2P Device BSS changed %#x", changed); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 212 | } else { |
| 213 | WARN_ON(1); |
| 214 | return; |
| 215 | } |
| 216 | |
| 217 | switch (sdata->vif.type) { |
| 218 | case NL80211_IFTYPE_AP: |
| 219 | case NL80211_IFTYPE_ADHOC: |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 220 | case NL80211_IFTYPE_WDS: |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 221 | case NL80211_IFTYPE_MESH_POINT: |
| 222 | break; |
| 223 | default: |
| 224 | /* do not warn to simplify caller in scan.c */ |
| 225 | changed &= ~BSS_CHANGED_BEACON_ENABLED; |
| 226 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) |
| 227 | return; |
| 228 | break; |
| 229 | } |
| 230 | |
| 231 | if (changed & BSS_CHANGED_BEACON_ENABLED) { |
Johannes Berg | 9607e6b | 2009-12-23 13:15:31 +0100 | [diff] [blame] | 232 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 233 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 234 | sdata->vif.bss_conf.enable_beacon = false; |
| 235 | } else { |
| 236 | /* |
| 237 | * Beacon should be enabled, but AP mode must |
| 238 | * check whether there is a beacon configured. |
| 239 | */ |
| 240 | switch (sdata->vif.type) { |
| 241 | case NL80211_IFTYPE_AP: |
| 242 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 243 | !!sdata->u.ap.beacon; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 244 | break; |
| 245 | case NL80211_IFTYPE_ADHOC: |
| 246 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 247 | !!sdata->u.ibss.presp; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 248 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 249 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 250 | case NL80211_IFTYPE_MESH_POINT: |
Johannes Berg | 29cbe68 | 2010-12-03 09:20:44 +0100 | [diff] [blame] | 251 | sdata->vif.bss_conf.enable_beacon = |
| 252 | !!sdata->u.mesh.mesh_id_len; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 253 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 254 | #endif |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 255 | default: |
| 256 | /* not reached */ |
| 257 | WARN_ON(1); |
| 258 | break; |
| 259 | } |
| 260 | } |
| 261 | } |
| 262 | |
Johannes Berg | 12375ef | 2009-11-25 20:30:31 +0100 | [diff] [blame] | 263 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 264 | } |
| 265 | |
Jasper Bryant-Greene | f698d85 | 2008-08-03 12:04:37 +1200 | [diff] [blame] | 266 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 267 | { |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 268 | sdata->vif.bss_conf.use_cts_prot = false; |
| 269 | sdata->vif.bss_conf.use_short_preamble = false; |
| 270 | sdata->vif.bss_conf.use_short_slot = false; |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 271 | return BSS_CHANGED_ERP_CTS_PROT | |
| 272 | BSS_CHANGED_ERP_PREAMBLE | |
| 273 | BSS_CHANGED_ERP_SLOT; |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 274 | } |
| 275 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 276 | static void ieee80211_tasklet_handler(unsigned long data) |
| 277 | { |
| 278 | struct ieee80211_local *local = (struct ieee80211_local *) data; |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 279 | struct sta_info *sta, *tmp; |
| 280 | struct skb_eosp_msg_data *eosp_data; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 281 | struct sk_buff *skb; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 282 | |
| 283 | while ((skb = skb_dequeue(&local->skb_queue)) || |
| 284 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { |
| 285 | switch (skb->pkt_type) { |
| 286 | case IEEE80211_RX_MSG: |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 287 | /* Clear skb->pkt_type in order to not confuse kernel |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 288 | * netstack. */ |
| 289 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 290 | ieee80211_rx(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 291 | break; |
| 292 | case IEEE80211_TX_STATUS_MSG: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 293 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 294 | ieee80211_tx_status(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 295 | break; |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 296 | case IEEE80211_EOSP_MSG: |
| 297 | eosp_data = (void *)skb->cb; |
| 298 | for_each_sta_info(local, eosp_data->sta, sta, tmp) { |
| 299 | /* skip wrong virtual interface */ |
| 300 | if (memcmp(eosp_data->iface, |
| 301 | sta->sdata->vif.addr, ETH_ALEN)) |
| 302 | continue; |
| 303 | clear_sta_flag(sta, WLAN_STA_SP); |
| 304 | break; |
| 305 | } |
| 306 | dev_kfree_skb(skb); |
| 307 | break; |
Johannes Berg | f4ea83d | 2008-06-30 15:10:46 +0200 | [diff] [blame] | 308 | default: |
Larry Finger | 5e3f308 | 2008-12-17 14:26:59 -0600 | [diff] [blame] | 309 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
| 310 | skb->pkt_type); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 311 | dev_kfree_skb(skb); |
| 312 | break; |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 317 | static void ieee80211_restart_work(struct work_struct *work) |
| 318 | { |
| 319 | struct ieee80211_local *local = |
| 320 | container_of(work, struct ieee80211_local, restart_work); |
| 321 | |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 322 | /* wait for scan work complete */ |
| 323 | flush_workqueue(local->workqueue); |
| 324 | |
| 325 | mutex_lock(&local->mtx); |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 326 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || |
Johannes Berg | 5260a5b | 2012-07-06 21:55:11 +0200 | [diff] [blame] | 327 | rcu_dereference_protected(local->sched_scan_sdata, |
| 328 | lockdep_is_held(&local->mtx)), |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 329 | "%s called with hardware scan in progress\n", __func__); |
| 330 | mutex_unlock(&local->mtx); |
| 331 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 332 | rtnl_lock(); |
Stanislaw Gruszka | 4136c42 | 2010-10-06 11:22:10 +0200 | [diff] [blame] | 333 | ieee80211_scan_cancel(local); |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 334 | ieee80211_reconfig(local); |
| 335 | rtnl_unlock(); |
| 336 | } |
| 337 | |
| 338 | void ieee80211_restart_hw(struct ieee80211_hw *hw) |
| 339 | { |
| 340 | struct ieee80211_local *local = hw_to_local(hw); |
| 341 | |
Johannes Berg | b5878a2 | 2010-04-07 16:48:40 +0200 | [diff] [blame] | 342 | trace_api_restart_hw(local); |
| 343 | |
Michael Buesch | b196d03 | 2011-03-07 13:09:12 +0100 | [diff] [blame] | 344 | wiphy_info(hw->wiphy, |
| 345 | "Hardware restart was requested\n"); |
| 346 | |
John W. Linville | 18145c6 | 2010-08-30 15:12:02 -0400 | [diff] [blame] | 347 | /* use this reason, ieee80211_reconfig will unblock it */ |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 348 | ieee80211_stop_queues_by_reason(hw, |
| 349 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); |
| 350 | |
Arik Nemtsov | 04800ad | 2012-06-06 11:25:02 +0300 | [diff] [blame] | 351 | /* |
| 352 | * Stop all Rx during the reconfig. We don't want state changes |
| 353 | * or driver callbacks while this is in progress. |
| 354 | */ |
| 355 | local->in_reconfig = true; |
| 356 | barrier(); |
| 357 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 358 | schedule_work(&local->restart_work); |
| 359 | } |
| 360 | EXPORT_SYMBOL(ieee80211_restart_hw); |
| 361 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 362 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
| 363 | { |
| 364 | struct ieee80211_local *local = |
| 365 | container_of(work, struct ieee80211_local, recalc_smps); |
| 366 | |
Johannes Berg | 025e6be | 2010-10-05 10:41:47 +0200 | [diff] [blame] | 367 | ieee80211_recalc_smps(local); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 368 | } |
| 369 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 370 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 371 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
| 372 | unsigned long data, void *arg) |
| 373 | { |
| 374 | struct in_ifaddr *ifa = arg; |
| 375 | struct ieee80211_local *local = |
| 376 | container_of(nb, struct ieee80211_local, |
| 377 | ifa_notifier); |
| 378 | struct net_device *ndev = ifa->ifa_dev->dev; |
| 379 | struct wireless_dev *wdev = ndev->ieee80211_ptr; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 380 | struct in_device *idev; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 381 | struct ieee80211_sub_if_data *sdata; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 382 | struct ieee80211_bss_conf *bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 383 | struct ieee80211_if_managed *ifmgd; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 384 | int c = 0; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 385 | |
| 386 | /* Make sure it's our interface that got changed */ |
| 387 | if (!wdev) |
| 388 | return NOTIFY_DONE; |
| 389 | |
| 390 | if (wdev->wiphy != local->hw.wiphy) |
| 391 | return NOTIFY_DONE; |
| 392 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 393 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 394 | bss_conf = &sdata->vif.bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 395 | |
| 396 | /* ARP filtering is only supported in managed mode */ |
| 397 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 398 | return NOTIFY_DONE; |
| 399 | |
Eric Dumazet | 95ae6b2 | 2010-09-15 04:04:31 +0000 | [diff] [blame] | 400 | idev = __in_dev_get_rtnl(sdata->dev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 401 | if (!idev) |
| 402 | return NOTIFY_DONE; |
| 403 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 404 | ifmgd = &sdata->u.mgd; |
| 405 | mutex_lock(&ifmgd->mtx); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 406 | |
| 407 | /* Copy the addresses to the bss_conf list */ |
| 408 | ifa = idev->ifa_list; |
| 409 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { |
| 410 | bss_conf->arp_addr_list[c] = ifa->ifa_address; |
| 411 | ifa = ifa->ifa_next; |
| 412 | c++; |
| 413 | } |
| 414 | |
| 415 | /* If not all addresses fit the list, disable filtering */ |
| 416 | if (ifa) { |
| 417 | sdata->arp_filter_state = false; |
| 418 | c = 0; |
| 419 | } else { |
| 420 | sdata->arp_filter_state = true; |
| 421 | } |
| 422 | bss_conf->arp_addr_cnt = c; |
| 423 | |
Eliad Peller | 53d69c3 | 2011-12-12 15:30:04 +0200 | [diff] [blame] | 424 | /* Configure driver only if associated (which also implies it is up) */ |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 425 | if (ifmgd->associated) { |
| 426 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; |
| 427 | ieee80211_bss_info_change_notify(sdata, |
| 428 | BSS_CHANGED_ARP_FILTER); |
| 429 | } |
| 430 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 431 | mutex_unlock(&ifmgd->mtx); |
| 432 | |
| 433 | return NOTIFY_DONE; |
| 434 | } |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 435 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 436 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 437 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
| 438 | { |
| 439 | struct ieee80211_local *local = |
| 440 | container_of(napi, struct ieee80211_local, napi); |
| 441 | |
| 442 | return local->ops->napi_poll(&local->hw, budget); |
| 443 | } |
| 444 | |
| 445 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) |
| 446 | { |
| 447 | struct ieee80211_local *local = hw_to_local(hw); |
| 448 | |
| 449 | napi_schedule(&local->napi); |
| 450 | } |
| 451 | EXPORT_SYMBOL(ieee80211_napi_schedule); |
| 452 | |
| 453 | void ieee80211_napi_complete(struct ieee80211_hw *hw) |
| 454 | { |
| 455 | struct ieee80211_local *local = hw_to_local(hw); |
| 456 | |
| 457 | napi_complete(&local->napi); |
| 458 | } |
| 459 | EXPORT_SYMBOL(ieee80211_napi_complete); |
| 460 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 461 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
| 462 | static const struct ieee80211_txrx_stypes |
| 463 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { |
| 464 | [NL80211_IFTYPE_ADHOC] = { |
| 465 | .tx = 0xffff, |
Will Hawkins | 3bfda62 | 2012-06-19 17:59:14 -0400 | [diff] [blame] | 466 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 467 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 468 | BIT(IEEE80211_STYPE_DEAUTH >> 4), |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 469 | }, |
| 470 | [NL80211_IFTYPE_STATION] = { |
| 471 | .tx = 0xffff, |
| 472 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 473 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 474 | }, |
| 475 | [NL80211_IFTYPE_AP] = { |
| 476 | .tx = 0xffff, |
| 477 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 478 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 479 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 480 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 481 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 482 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 483 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 484 | }, |
| 485 | [NL80211_IFTYPE_AP_VLAN] = { |
| 486 | /* copy AP */ |
| 487 | .tx = 0xffff, |
| 488 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 489 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 490 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 491 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 492 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 493 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 494 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 495 | }, |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 496 | [NL80211_IFTYPE_P2P_CLIENT] = { |
| 497 | .tx = 0xffff, |
| 498 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 499 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 500 | }, |
| 501 | [NL80211_IFTYPE_P2P_GO] = { |
| 502 | .tx = 0xffff, |
| 503 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 504 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 505 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 506 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 507 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 508 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 509 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 510 | }, |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 511 | [NL80211_IFTYPE_MESH_POINT] = { |
| 512 | .tx = 0xffff, |
Javier Cardona | 7183912 | 2011-04-07 15:08:31 -0700 | [diff] [blame] | 513 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 514 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 515 | BIT(IEEE80211_STYPE_DEAUTH >> 4), |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 516 | }, |
Johannes Berg | f142c6b | 2012-06-18 20:07:15 +0200 | [diff] [blame] | 517 | [NL80211_IFTYPE_P2P_DEVICE] = { |
| 518 | .tx = 0xffff, |
| 519 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 520 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 521 | }, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 522 | }; |
| 523 | |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 524 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
| 525 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | |
| 526 | IEEE80211_HT_AMPDU_PARM_DENSITY, |
| 527 | |
| 528 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| 529 | IEEE80211_HT_CAP_MAX_AMSDU | |
| 530 | IEEE80211_HT_CAP_SGI_40), |
| 531 | .mcs = { |
| 532 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, |
| 533 | 0xff, 0xff, 0xff, 0xff, 0xff, }, |
| 534 | }, |
| 535 | }; |
| 536 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 537 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 538 | const struct ieee80211_ops *ops) |
| 539 | { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 540 | struct ieee80211_local *local; |
Johannes Berg | 96f5e66 | 2009-02-12 00:51:53 +0100 | [diff] [blame] | 541 | int priv_size, i; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 542 | struct wiphy *wiphy; |
| 543 | |
Johannes Berg | c0af073 | 2012-07-26 14:42:10 +0200 | [diff] [blame] | 544 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
| 545 | !ops->add_interface || !ops->remove_interface || |
| 546 | !ops->configure_filter)) |
| 547 | return NULL; |
| 548 | |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 549 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
| 550 | return NULL; |
| 551 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 552 | /* Ensure 32-byte alignment of our private data and hw private data. |
| 553 | * We use the wiphy priv data for both our ieee80211_local and for |
| 554 | * the driver's private data |
| 555 | * |
| 556 | * In memory it'll be like this: |
| 557 | * |
| 558 | * +-------------------------+ |
| 559 | * | struct wiphy | |
| 560 | * +-------------------------+ |
| 561 | * | struct ieee80211_local | |
| 562 | * +-------------------------+ |
| 563 | * | driver's private data | |
| 564 | * +-------------------------+ |
| 565 | * |
| 566 | */ |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 567 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 568 | |
| 569 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); |
| 570 | |
| 571 | if (!wiphy) |
| 572 | return NULL; |
| 573 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 574 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
| 575 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 576 | wiphy->privid = mac80211_wiphy_privid; |
| 577 | |
Johannes Berg | 9bc383d | 2009-11-19 11:55:19 +0100 | [diff] [blame] | 578 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
| 579 | WIPHY_FLAG_4ADDR_AP | |
Johannes Berg | ee97192 | 2011-11-04 11:18:18 +0100 | [diff] [blame] | 580 | WIPHY_FLAG_4ADDR_STATION | |
Johannes Berg | 7c4ef71 | 2011-11-18 15:33:48 +0100 | [diff] [blame] | 581 | WIPHY_FLAG_REPORTS_OBSS | |
Johannes Berg | 81ddbb5 | 2012-03-26 18:47:18 +0200 | [diff] [blame] | 582 | WIPHY_FLAG_OFFCHAN_TX; |
| 583 | |
| 584 | if (ops->remain_on_channel) |
| 585 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 586 | |
Alexander Simon | 13c40c5 | 2011-11-30 16:56:34 +0100 | [diff] [blame] | 587 | wiphy->features = NL80211_FEATURE_SK_TX_STATUS | |
| 588 | NL80211_FEATURE_HT_IBSS; |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 589 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 590 | if (!ops->set_key) |
| 591 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
Johannes Berg | 18a8365 | 2009-03-31 12:12:05 +0200 | [diff] [blame] | 592 | |
Johannes Berg | 0c1ad2c | 2009-12-23 13:15:39 +0100 | [diff] [blame] | 593 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 594 | |
| 595 | local = wiphy_priv(wiphy); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 596 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 597 | local->hw.wiphy = wiphy; |
| 598 | |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 599 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 600 | |
| 601 | local->ops = ops; |
| 602 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 603 | /* set up some defaults */ |
| 604 | local->hw.queues = 1; |
| 605 | local->hw.max_rates = 1; |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 606 | local->hw.max_report_rates = 0; |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 607 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Helmut Schaa | 39e6871 | 2011-08-05 11:46:19 +0200 | [diff] [blame] | 608 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 609 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 610 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| 611 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 612 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
| 613 | IEEE80211_RADIOTAP_MCS_HAVE_GI | |
| 614 | IEEE80211_RADIOTAP_MCS_HAVE_BW; |
Johannes Berg | c428c89 | 2009-04-29 00:28:18 +0200 | [diff] [blame] | 615 | local->user_power_level = -1; |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 616 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 617 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 618 | INIT_LIST_HEAD(&local->interfaces); |
YOSHIFUJI Hideaki / 吉藤英明 | 2f787b0 | 2010-04-04 17:59:30 +0000 | [diff] [blame] | 619 | |
| 620 | __hw_addr_init(&local->mc_list); |
| 621 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 622 | mutex_init(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 623 | mutex_init(&local->mtx); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 624 | |
Johannes Berg | ad0e2b5 | 2010-06-01 10:19:19 +0200 | [diff] [blame] | 625 | mutex_init(&local->key_mtx); |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 626 | spin_lock_init(&local->filter_lock); |
Kalle Valo | ce7c911 | 2008-12-18 23:35:20 +0200 | [diff] [blame] | 627 | spin_lock_init(&local->queue_stop_reason_lock); |
| 628 | |
Michal Kazior | d01a1e6 | 2012-06-26 14:37:16 +0200 | [diff] [blame^] | 629 | INIT_LIST_HEAD(&local->chanctx_list); |
| 630 | mutex_init(&local->chanctx_mtx); |
| 631 | |
Johannes Berg | 681c4d0 | 2011-01-12 13:40:33 +0100 | [diff] [blame] | 632 | /* |
| 633 | * The rx_skb_queue is only accessed from tasklets, |
| 634 | * but other SKB queues are used from within IRQ |
| 635 | * context. Therefore, this one needs a different |
| 636 | * locking class so our direct, non-irq-safe use of |
| 637 | * the queue's lock doesn't throw lockdep warnings. |
| 638 | */ |
| 639 | skb_queue_head_init_class(&local->rx_skb_queue, |
| 640 | &ieee80211_rx_skb_queue_class); |
Christian Lamparter | 24a8fda | 2010-12-30 17:25:29 +0100 | [diff] [blame] | 641 | |
Johannes Berg | c2b1345 | 2008-09-11 00:01:55 +0200 | [diff] [blame] | 642 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 643 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 644 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
| 645 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 646 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 647 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
| 648 | local->smps_mode = IEEE80211_SMPS_OFF; |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 649 | |
Kalle Valo | 520eb82 | 2008-12-18 23:35:27 +0200 | [diff] [blame] | 650 | INIT_WORK(&local->dynamic_ps_enable_work, |
| 651 | ieee80211_dynamic_ps_enable_work); |
| 652 | INIT_WORK(&local->dynamic_ps_disable_work, |
| 653 | ieee80211_dynamic_ps_disable_work); |
| 654 | setup_timer(&local->dynamic_ps_timer, |
| 655 | ieee80211_dynamic_ps_timer, (unsigned long) local); |
| 656 | |
Luciano Coelho | 85a9994 | 2011-05-12 16:28:29 +0300 | [diff] [blame] | 657 | INIT_WORK(&local->sched_scan_stopped_work, |
| 658 | ieee80211_sched_scan_stopped_work); |
| 659 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 660 | spin_lock_init(&local->ack_status_lock); |
| 661 | idr_init(&local->ack_status_frames); |
| 662 | /* preallocate at least one entry */ |
| 663 | idr_pre_get(&local->ack_status_frames, GFP_KERNEL); |
| 664 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 665 | sta_info_init(local); |
| 666 | |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 667 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
Johannes Berg | 2a577d9 | 2009-03-23 17:28:37 +0100 | [diff] [blame] | 668 | skb_queue_head_init(&local->pending[i]); |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 669 | atomic_set(&local->agg_queue_stop[i], 0); |
| 670 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 671 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
| 672 | (unsigned long)local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 673 | |
| 674 | tasklet_init(&local->tasklet, |
| 675 | ieee80211_tasklet_handler, |
| 676 | (unsigned long) local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 677 | |
| 678 | skb_queue_head_init(&local->skb_queue); |
| 679 | skb_queue_head_init(&local->skb_queue_unreliable); |
| 680 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 681 | /* init dummy netdev for use w/ NAPI */ |
| 682 | init_dummy_netdev(&local->napi_dev); |
| 683 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 684 | ieee80211_led_names(local); |
| 685 | |
Johannes Berg | 2eb278e | 2012-06-05 14:28:42 +0200 | [diff] [blame] | 686 | ieee80211_roc_setup(local); |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 687 | |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 688 | return &local->hw; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 689 | } |
| 690 | EXPORT_SYMBOL(ieee80211_alloc_hw); |
| 691 | |
| 692 | int ieee80211_register_hw(struct ieee80211_hw *hw) |
| 693 | { |
| 694 | struct ieee80211_local *local = hw_to_local(hw); |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 695 | int result, i; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 696 | enum ieee80211_band band; |
Johannes Berg | be4a4b6 | 2010-05-03 08:49:48 +0200 | [diff] [blame] | 697 | int channels, max_bitrates; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 698 | bool supp_ht, supp_vht; |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 699 | netdev_features_t feature_whitelist; |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 700 | static const u32 cipher_suites[] = { |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 701 | /* keep WEP first, it may be removed below */ |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 702 | WLAN_CIPHER_SUITE_WEP40, |
| 703 | WLAN_CIPHER_SUITE_WEP104, |
| 704 | WLAN_CIPHER_SUITE_TKIP, |
| 705 | WLAN_CIPHER_SUITE_CCMP, |
| 706 | |
| 707 | /* keep last -- depends on hw flags! */ |
| 708 | WLAN_CIPHER_SUITE_AES_CMAC |
| 709 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 710 | |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 711 | if (hw->flags & IEEE80211_HW_QUEUE_CONTROL && |
| 712 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
| 713 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) |
| 714 | return -EINVAL; |
| 715 | |
Larry Finger | 38bb3e9 | 2011-05-05 18:48:47 -0500 | [diff] [blame] | 716 | #ifdef CONFIG_PM |
Johannes Berg | dfb89c5 | 2012-06-27 09:23:48 +0200 | [diff] [blame] | 717 | if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) && |
| 718 | (!local->ops->suspend || !local->ops->resume)) |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 719 | return -EINVAL; |
Johannes Berg | dfb89c5 | 2012-06-27 09:23:48 +0200 | [diff] [blame] | 720 | #endif |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 721 | |
Eliad Peller | 885bd8e | 2012-02-02 17:44:55 +0200 | [diff] [blame] | 722 | if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) |
| 723 | return -EINVAL; |
| 724 | |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 725 | /* Only HW csum features are currently compatible with mac80211 */ |
| 726 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 727 | NETIF_F_HW_CSUM; |
| 728 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) |
| 729 | return -EINVAL; |
| 730 | |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 731 | if (hw->max_report_rates == 0) |
| 732 | hw->max_report_rates = hw->max_rates; |
| 733 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 734 | /* |
| 735 | * generic code guarantees at least one band, |
| 736 | * set this very early because much code assumes |
| 737 | * that hw.conf.channel is assigned |
| 738 | */ |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 739 | channels = 0; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 740 | max_bitrates = 0; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 741 | supp_ht = false; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 742 | supp_vht = false; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 743 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 744 | struct ieee80211_supported_band *sband; |
| 745 | |
| 746 | sband = local->hw.wiphy->bands[band]; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 747 | if (!sband) |
| 748 | continue; |
| 749 | if (!local->oper_channel) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 750 | /* init channel we're on */ |
| 751 | local->hw.conf.channel = |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 752 | local->oper_channel = &sband->channels[0]; |
| 753 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 754 | } |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 755 | channels += sband->n_channels; |
| 756 | |
| 757 | if (max_bitrates < sband->n_bitrates) |
| 758 | max_bitrates = sband->n_bitrates; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 759 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 760 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 761 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 762 | |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 763 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
| 764 | sizeof(void *) * channels, GFP_KERNEL); |
| 765 | if (!local->int_scan_req) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 766 | return -ENOMEM; |
| 767 | |
Simon Wunderlich | c72e8d3 | 2011-11-30 16:56:30 +0100 | [diff] [blame] | 768 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 769 | if (!local->hw.wiphy->bands[band]) |
| 770 | continue; |
| 771 | local->int_scan_req->rates[band] = (u32) -1; |
| 772 | } |
| 773 | |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 774 | /* if low-level driver supports AP, we also support VLAN */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 775 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
| 776 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 777 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 778 | } |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 779 | |
| 780 | /* mac80211 always supports monitor */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 781 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
| 782 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); |
| 783 | |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 784 | /* |
| 785 | * mac80211 doesn't support more than 1 channel, and also not more |
| 786 | * than one IBSS interface |
| 787 | */ |
| 788 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
| 789 | const struct ieee80211_iface_combination *c; |
| 790 | int j; |
| 791 | |
| 792 | c = &hw->wiphy->iface_combinations[i]; |
| 793 | |
| 794 | if (c->num_different_channels > 1) |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 795 | return -EINVAL; |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 796 | |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 797 | for (j = 0; j < c->n_limits; j++) |
| 798 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && |
| 799 | c->limits[j].max > 1) |
| 800 | return -EINVAL; |
| 801 | } |
| 802 | |
Johannes Berg | 5eb5a52 | 2010-08-25 14:34:01 +0200 | [diff] [blame] | 803 | #ifndef CONFIG_MAC80211_MESH |
| 804 | /* mesh depends on Kconfig, but drivers should set it if they want */ |
| 805 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); |
| 806 | #endif |
| 807 | |
Javier Cardona | 1570ca5 | 2011-04-07 15:08:35 -0700 | [diff] [blame] | 808 | /* if the underlying driver supports mesh, mac80211 will (at least) |
| 809 | * provide routing of mesh authentication frames to userspace */ |
| 810 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) |
| 811 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; |
| 812 | |
Johannes Berg | a621fa4 | 2010-08-27 14:26:54 +0300 | [diff] [blame] | 813 | /* mac80211 supports control port protocol changing */ |
| 814 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; |
| 815 | |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 816 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
| 817 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| 818 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) |
| 819 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
| 820 | |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 821 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
| 822 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), |
| 823 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); |
| 824 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 825 | /* |
| 826 | * Calculate scan IE length -- we need this to alloc |
| 827 | * memory and to subtract from the driver limit. It |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 828 | * includes the DS Params, (extended) supported rates, and HT |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 829 | * information -- SSID is the driver's responsibility. |
| 830 | */ |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 831 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
| 832 | 3 /* DS Params */; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 833 | if (supp_ht) |
| 834 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 835 | |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 836 | if (supp_vht) |
| 837 | local->scan_ies_len += |
| 838 | 2 + sizeof(struct ieee80211_vht_capabilities); |
| 839 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 840 | if (!local->ops->hw_scan) { |
| 841 | /* For hw_scan, driver needs to set these up. */ |
| 842 | local->hw.wiphy->max_scan_ssids = 4; |
| 843 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; |
| 844 | } |
| 845 | |
| 846 | /* |
| 847 | * If the driver supports any scan IEs, then assume the |
| 848 | * limit includes the IEs mac80211 will add, otherwise |
| 849 | * leave it at zero and let the driver sort it out; we |
| 850 | * still pass our IEs to the driver but userspace will |
| 851 | * not be allowed to in that case. |
| 852 | */ |
| 853 | if (local->hw.wiphy->max_scan_ie_len) |
| 854 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; |
| 855 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 856 | /* Set up cipher suites unless driver already did */ |
| 857 | if (!local->hw.wiphy->cipher_suites) { |
| 858 | local->hw.wiphy->cipher_suites = cipher_suites; |
| 859 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| 860 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) |
| 861 | local->hw.wiphy->n_cipher_suites--; |
| 862 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 863 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 864 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
| 865 | local->hw.wiphy->cipher_suites += 2; |
| 866 | local->hw.wiphy->n_cipher_suites -= 2; |
| 867 | } else { |
| 868 | u32 *suites; |
| 869 | int r, w = 0; |
| 870 | |
| 871 | /* Filter out WEP */ |
| 872 | |
| 873 | suites = kmemdup( |
| 874 | local->hw.wiphy->cipher_suites, |
| 875 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, |
| 876 | GFP_KERNEL); |
| 877 | if (!suites) |
| 878 | return -ENOMEM; |
| 879 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
| 880 | u32 suite = local->hw.wiphy->cipher_suites[r]; |
| 881 | if (suite == WLAN_CIPHER_SUITE_WEP40 || |
| 882 | suite == WLAN_CIPHER_SUITE_WEP104) |
| 883 | continue; |
| 884 | suites[w++] = suite; |
| 885 | } |
| 886 | local->hw.wiphy->cipher_suites = suites; |
| 887 | local->hw.wiphy->n_cipher_suites = w; |
| 888 | local->wiphy_ciphers_allocated = true; |
| 889 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 890 | } |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 891 | |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 892 | if (!local->ops->remain_on_channel) |
| 893 | local->hw.wiphy->max_remain_on_channel_duration = 5000; |
Johannes Berg | a293911 | 2010-12-14 17:54:28 +0100 | [diff] [blame] | 894 | |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 895 | if (local->ops->sched_scan_start) |
| 896 | local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
| 897 | |
Arik Nemtsov | dfe018b | 2011-09-28 14:12:52 +0300 | [diff] [blame] | 898 | /* mac80211 based drivers don't support internal TDLS setup */ |
| 899 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) |
| 900 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; |
| 901 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 902 | result = wiphy_register(local->hw.wiphy); |
| 903 | if (result < 0) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 904 | goto fail_wiphy_register; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 905 | |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 906 | /* |
| 907 | * We use the number of queues for feature tests (QoS, HT) internally |
| 908 | * so restrict them appropriately. |
| 909 | */ |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 910 | if (hw->queues > IEEE80211_MAX_QUEUES) |
| 911 | hw->queues = IEEE80211_MAX_QUEUES; |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 912 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 913 | local->workqueue = |
Tejun Heo | 99b88a0 | 2010-10-15 17:35:28 +0200 | [diff] [blame] | 914 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 915 | if (!local->workqueue) { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 916 | result = -ENOMEM; |
| 917 | goto fail_workqueue; |
| 918 | } |
| 919 | |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 920 | /* |
| 921 | * The hardware needs headroom for sending the frame, |
| 922 | * and we need some headroom for passing the frame to monitor |
| 923 | * interfaces, but never both at the same time. |
| 924 | */ |
Jiri Benc | 33ccad3 | 2007-07-18 17:10:44 +0200 | [diff] [blame] | 925 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
Helmut Schaa | a2fe816 | 2011-10-11 18:08:54 +0200 | [diff] [blame] | 926 | IEEE80211_TX_STATUS_HEADROOM); |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 927 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 928 | debugfs_hw_add(local); |
| 929 | |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 930 | /* |
| 931 | * if the driver doesn't specify a max listen interval we |
| 932 | * use 5 which should be a safe default |
| 933 | */ |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 934 | if (local->hw.max_listen_interval == 0) |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 935 | local->hw.max_listen_interval = 5; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 936 | |
| 937 | local->hw.conf.listen_interval = local->hw.max_listen_interval; |
| 938 | |
Juuso Oikarinen | ff61638 | 2010-06-09 09:51:52 +0300 | [diff] [blame] | 939 | local->dynamic_ps_forced_timeout = -1; |
Juuso Oikarinen | 195e294 | 2010-04-27 12:47:40 +0300 | [diff] [blame] | 940 | |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 941 | result = ieee80211_wep_init(local); |
John W. Linville | 3473187 | 2010-07-07 15:07:49 -0400 | [diff] [blame] | 942 | if (result < 0) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 943 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
| 944 | result); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 945 | |
Mohammed Shafi Shajakhan | b57e6b5 | 2012-02-09 19:59:43 +0530 | [diff] [blame] | 946 | ieee80211_led_init(local); |
| 947 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 948 | rtnl_lock(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 949 | |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 950 | result = ieee80211_init_rate_ctrl_alg(local, |
| 951 | hw->rate_control_algorithm); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 952 | if (result < 0) { |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 953 | wiphy_debug(local->hw.wiphy, |
| 954 | "Failed to initialize rate control algorithm\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 955 | goto fail_rate; |
| 956 | } |
| 957 | |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 958 | /* add one default STA interface if supported */ |
| 959 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { |
| 960 | result = ieee80211_if_add(local, "wlan%d", NULL, |
| 961 | NL80211_IFTYPE_STATION, NULL); |
| 962 | if (result) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 963 | wiphy_warn(local->hw.wiphy, |
| 964 | "Failed to add default virtual iface\n"); |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 965 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 966 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 967 | rtnl_unlock(); |
| 968 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 969 | local->network_latency_notifier.notifier_call = |
| 970 | ieee80211_max_network_latency; |
| 971 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, |
| 972 | &local->network_latency_notifier); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 973 | if (result) { |
| 974 | rtnl_lock(); |
| 975 | goto fail_pm_qos; |
| 976 | } |
| 977 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 978 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 979 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
| 980 | result = register_inetaddr_notifier(&local->ifa_notifier); |
| 981 | if (result) |
| 982 | goto fail_ifa; |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 983 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 984 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 985 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
| 986 | local->hw.napi_weight); |
| 987 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 988 | return 0; |
| 989 | |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 990 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 991 | fail_ifa: |
| 992 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 993 | &local->network_latency_notifier); |
| 994 | rtnl_lock(); |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 995 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 996 | fail_pm_qos: |
| 997 | ieee80211_led_exit(local); |
| 998 | ieee80211_remove_interfaces(local); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 999 | fail_rate: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1000 | rtnl_unlock(); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 1001 | ieee80211_wep_free(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1002 | sta_info_stop(local); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1003 | destroy_workqueue(local->workqueue); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1004 | fail_workqueue: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1005 | wiphy_unregister(local->hw.wiphy); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1006 | fail_wiphy_register: |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1007 | if (local->wiphy_ciphers_allocated) |
| 1008 | kfree(local->hw.wiphy->cipher_suites); |
Johannes Berg | 11ba964 | 2009-08-19 19:45:50 +0200 | [diff] [blame] | 1009 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1010 | return result; |
| 1011 | } |
| 1012 | EXPORT_SYMBOL(ieee80211_register_hw); |
| 1013 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1014 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
| 1015 | { |
| 1016 | struct ieee80211_local *local = hw_to_local(hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1017 | |
| 1018 | tasklet_kill(&local->tx_pending_tasklet); |
| 1019 | tasklet_kill(&local->tasklet); |
| 1020 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1021 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 1022 | &local->network_latency_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1023 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1024 | unregister_inetaddr_notifier(&local->ifa_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1025 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1026 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1027 | rtnl_lock(); |
| 1028 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1029 | /* |
| 1030 | * At this point, interface list manipulations are fine |
| 1031 | * because the driver cannot be handing us frames any |
| 1032 | * more and the tasklet is killed. |
| 1033 | */ |
Johannes Berg | 7563652 | 2008-07-09 14:40:35 +0200 | [diff] [blame] | 1034 | ieee80211_remove_interfaces(local); |
Johannes Berg | 5b2812e | 2007-09-26 14:27:23 +0200 | [diff] [blame] | 1035 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1036 | rtnl_unlock(); |
| 1037 | |
Christian Lamparter | 258086a | 2010-08-22 23:48:25 +0200 | [diff] [blame] | 1038 | cancel_work_sync(&local->restart_work); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1039 | cancel_work_sync(&local->reconfig_filter); |
| 1040 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1041 | ieee80211_clear_tx_pending(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1042 | rate_control_deinitialize(local); |
| 1043 | |
Joe Perches | f64f9e7 | 2009-11-29 16:55:45 -0800 | [diff] [blame] | 1044 | if (skb_queue_len(&local->skb_queue) || |
| 1045 | skb_queue_len(&local->skb_queue_unreliable)) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1046 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1047 | skb_queue_purge(&local->skb_queue); |
| 1048 | skb_queue_purge(&local->skb_queue_unreliable); |
Christian Lamparter | 24a8fda | 2010-12-30 17:25:29 +0100 | [diff] [blame] | 1049 | skb_queue_purge(&local->rx_skb_queue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1050 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1051 | destroy_workqueue(local->workqueue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1052 | wiphy_unregister(local->hw.wiphy); |
Stanislaw Gruszka | ecb4433 | 2011-08-12 14:00:59 +0200 | [diff] [blame] | 1053 | sta_info_stop(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1054 | ieee80211_wep_free(local); |
| 1055 | ieee80211_led_exit(local); |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 1056 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1057 | } |
| 1058 | EXPORT_SYMBOL(ieee80211_unregister_hw); |
| 1059 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1060 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
| 1061 | { |
| 1062 | WARN_ONCE(1, "Have pending ack frames!\n"); |
| 1063 | kfree_skb(p); |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1067 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
| 1068 | { |
| 1069 | struct ieee80211_local *local = hw_to_local(hw); |
| 1070 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1071 | mutex_destroy(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 1072 | mutex_destroy(&local->mtx); |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1073 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1074 | if (local->wiphy_ciphers_allocated) |
| 1075 | kfree(local->hw.wiphy->cipher_suites); |
| 1076 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1077 | idr_for_each(&local->ack_status_frames, |
| 1078 | ieee80211_free_ack_frame, NULL); |
| 1079 | idr_destroy(&local->ack_status_frames); |
| 1080 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1081 | wiphy_free(local->hw.wiphy); |
| 1082 | } |
| 1083 | EXPORT_SYMBOL(ieee80211_free_hw); |
| 1084 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1085 | static int __init ieee80211_init(void) |
| 1086 | { |
| 1087 | struct sk_buff *skb; |
| 1088 | int ret; |
| 1089 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1090 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
| 1091 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + |
Johannes Berg | c6a1fa1 | 2008-10-07 12:04:32 +0200 | [diff] [blame] | 1092 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1093 | |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1094 | ret = rc80211_minstrel_init(); |
| 1095 | if (ret) |
| 1096 | return ret; |
| 1097 | |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1098 | ret = rc80211_minstrel_ht_init(); |
| 1099 | if (ret) |
| 1100 | goto err_minstrel; |
| 1101 | |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1102 | ret = rc80211_pid_init(); |
Mattias Nissler | ad01837 | 2007-12-19 01:25:57 +0100 | [diff] [blame] | 1103 | if (ret) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1104 | goto err_pid; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1105 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1106 | ret = ieee80211_iface_init(); |
| 1107 | if (ret) |
| 1108 | goto err_netdev; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 1109 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1110 | return 0; |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1111 | err_netdev: |
| 1112 | rc80211_pid_exit(); |
| 1113 | err_pid: |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1114 | rc80211_minstrel_ht_exit(); |
| 1115 | err_minstrel: |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1116 | rc80211_minstrel_exit(); |
| 1117 | |
| 1118 | return ret; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1119 | } |
| 1120 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1121 | static void __exit ieee80211_exit(void) |
| 1122 | { |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1123 | rc80211_pid_exit(); |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1124 | rc80211_minstrel_ht_exit(); |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1125 | rc80211_minstrel_exit(); |
Johannes Berg | ac71c69 | 2007-10-28 14:17:44 +0100 | [diff] [blame] | 1126 | |
Luis Carlos Cobo | f7a9214 | 2008-02-23 15:17:18 +0100 | [diff] [blame] | 1127 | if (mesh_allocated) |
| 1128 | ieee80211s_stop(); |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 1129 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1130 | ieee80211_iface_exit(); |
Johannes Berg | d07c7cf | 2011-05-14 11:04:51 +0200 | [diff] [blame] | 1131 | |
| 1132 | rcu_barrier(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1133 | } |
| 1134 | |
| 1135 | |
Johannes Berg | ca9938f | 2007-09-11 12:50:32 +0200 | [diff] [blame] | 1136 | subsys_initcall(ieee80211_init); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1137 | module_exit(ieee80211_exit); |
| 1138 | |
| 1139 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); |
| 1140 | MODULE_LICENSE("GPL"); |