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 | 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 | { |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 98 | struct ieee80211_channel *chan; |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 99 | u32 changed = 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 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 104 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 105 | if (local->scan_channel) { |
| 106 | chan = local->scan_channel; |
Ben Greear | 4f2e9d9 | 2011-02-07 13:44:35 -0800 | [diff] [blame] | 107 | /* If scanning on oper channel, use whatever channel-type |
| 108 | * is currently in use. |
| 109 | */ |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 110 | if (chan == local->_oper_channel) |
Ben Greear | 4f2e9d9 | 2011-02-07 13:44:35 -0800 | [diff] [blame] | 111 | channel_type = local->_oper_channel_type; |
| 112 | else |
| 113 | channel_type = NL80211_CHAN_NO_HT; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 114 | } else if (local->tmp_channel) { |
Stanislaw Gruszka | 5e5202a | 2011-11-03 10:40:45 +0100 | [diff] [blame] | 115 | chan = local->tmp_channel; |
Johannes Berg | b8bc4b0 | 2009-12-23 13:15:42 +0100 | [diff] [blame] | 116 | channel_type = local->tmp_channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 117 | } else { |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 118 | chan = local->_oper_channel; |
Johannes Berg | 0aaffa9 | 2010-05-05 15:28:27 +0200 | [diff] [blame] | 119 | channel_type = local->_oper_channel_type; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 120 | } |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 121 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 122 | if (chan != local->_oper_channel || |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 123 | channel_type != local->_oper_channel_type) |
| 124 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
| 125 | else |
| 126 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; |
| 127 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 128 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 129 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 130 | if (offchannel_flag || chan != local->hw.conf.channel || |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 131 | channel_type != local->hw.conf.channel_type) { |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 132 | local->hw.conf.channel = chan; |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 133 | local->hw.conf.channel_type = channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 134 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
| 135 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 136 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 137 | if (!conf_is_ht(&local->hw.conf)) { |
| 138 | /* |
| 139 | * mac80211.h documents that this is only valid |
| 140 | * when the channel is set to an HT type, and |
| 141 | * that otherwise STATIC is used. |
| 142 | */ |
| 143 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; |
| 144 | } else if (local->hw.conf.smps_mode != local->smps_mode) { |
| 145 | local->hw.conf.smps_mode = local->smps_mode; |
| 146 | changed |= IEEE80211_CONF_CHANGE_SMPS; |
| 147 | } |
| 148 | |
Dmitry TARNYAGIN | cd6c524 | 2011-12-12 12:58:43 +0100 | [diff] [blame] | 149 | if (test_bit(SCAN_SW_SCANNING, &local->scanning) || |
Ben Greear | 8a69067 | 2012-04-17 10:54:16 -0700 | [diff] [blame] | 150 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) || |
Johannes Berg | 04b7b2f | 2012-09-05 13:41:37 +0200 | [diff] [blame] | 151 | test_bit(SCAN_HW_SCANNING, &local->scanning) || |
| 152 | !local->ap_power_level) |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 153 | power = chan->max_power; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 154 | else |
Johannes Berg | 04b7b2f | 2012-09-05 13:41:37 +0200 | [diff] [blame] | 155 | power = min(chan->max_power, local->ap_power_level); |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 156 | |
Johannes Berg | 47afbaf | 2009-04-07 15:22:28 +0200 | [diff] [blame] | 157 | if (local->user_power_level >= 0) |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 158 | power = min(power, local->user_power_level); |
| 159 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 160 | if (local->hw.conf.power_level != power) { |
| 161 | changed |= IEEE80211_CONF_CHANGE_POWER; |
| 162 | local->hw.conf.power_level = power; |
| 163 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 164 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 165 | return changed; |
| 166 | } |
| 167 | |
| 168 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
| 169 | { |
| 170 | int ret = 0; |
| 171 | |
| 172 | might_sleep(); |
| 173 | |
| 174 | if (!local->use_chanctx) |
| 175 | changed |= ieee80211_hw_conf_chan(local); |
| 176 | else |
| 177 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | |
| 178 | IEEE80211_CONF_CHANGE_POWER); |
| 179 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 180 | if (changed && local->open_count) { |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 181 | ret = drv_config(local, changed); |
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 | * Goal: |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 184 | * HW reconfiguration should never fail, the driver has told |
| 185 | * 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] | 186 | * |
| 187 | * Current status: |
| 188 | * rfkill is not integrated with mac80211 and a |
| 189 | * configuration command can thus fail if hardware rfkill |
| 190 | * is enabled |
| 191 | * |
| 192 | * FIXME: integrate rfkill with mac80211 and then add this |
| 193 | * WARN_ON() back |
| 194 | * |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 195 | */ |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 196 | /* WARN_ON(ret); */ |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 197 | } |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 198 | |
| 199 | return ret; |
| 200 | } |
| 201 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 202 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| 203 | u32 changed) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 204 | { |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 205 | struct ieee80211_local *local = sdata->local; |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 206 | static const u8 zero[ETH_ALEN] = { 0 }; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 207 | |
| 208 | if (!changed) |
| 209 | return; |
| 210 | |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 211 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
Johannes Berg | 66e67e4 | 2012-01-20 13:55:27 +0100 | [diff] [blame] | 212 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 213 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 214 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
| 215 | else if (sdata->vif.type == NL80211_IFTYPE_AP) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 216 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 217 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
| 218 | sdata->vif.bss_conf.bssid = NULL; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 219 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 220 | sdata->vif.bss_conf.bssid = zero; |
Johannes Berg | f142c6b | 2012-06-18 20:07:15 +0200 | [diff] [blame] | 221 | } else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) { |
| 222 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
| 223 | WARN_ONCE(changed & ~(BSS_CHANGED_IDLE), |
| 224 | "P2P Device BSS changed %#x", changed); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 225 | } else { |
| 226 | WARN_ON(1); |
| 227 | return; |
| 228 | } |
| 229 | |
| 230 | switch (sdata->vif.type) { |
| 231 | case NL80211_IFTYPE_AP: |
| 232 | case NL80211_IFTYPE_ADHOC: |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 233 | case NL80211_IFTYPE_WDS: |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 234 | case NL80211_IFTYPE_MESH_POINT: |
| 235 | break; |
| 236 | default: |
| 237 | /* do not warn to simplify caller in scan.c */ |
| 238 | changed &= ~BSS_CHANGED_BEACON_ENABLED; |
| 239 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) |
| 240 | return; |
| 241 | break; |
| 242 | } |
| 243 | |
| 244 | if (changed & BSS_CHANGED_BEACON_ENABLED) { |
Johannes Berg | 9607e6b | 2009-12-23 13:15:31 +0100 | [diff] [blame] | 245 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 246 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 247 | sdata->vif.bss_conf.enable_beacon = false; |
| 248 | } else { |
| 249 | /* |
| 250 | * Beacon should be enabled, but AP mode must |
| 251 | * check whether there is a beacon configured. |
| 252 | */ |
| 253 | switch (sdata->vif.type) { |
| 254 | case NL80211_IFTYPE_AP: |
| 255 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 256 | !!sdata->u.ap.beacon; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 257 | break; |
| 258 | case NL80211_IFTYPE_ADHOC: |
| 259 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 260 | !!sdata->u.ibss.presp; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 261 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 262 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 263 | case NL80211_IFTYPE_MESH_POINT: |
Johannes Berg | 29cbe68 | 2010-12-03 09:20:44 +0100 | [diff] [blame] | 264 | sdata->vif.bss_conf.enable_beacon = |
| 265 | !!sdata->u.mesh.mesh_id_len; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 266 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 267 | #endif |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 268 | default: |
| 269 | /* not reached */ |
| 270 | WARN_ON(1); |
| 271 | break; |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | |
Johannes Berg | 12375ef | 2009-11-25 20:30:31 +0100 | [diff] [blame] | 276 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 277 | } |
| 278 | |
Jasper Bryant-Greene | f698d85 | 2008-08-03 12:04:37 +1200 | [diff] [blame] | 279 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 280 | { |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 281 | sdata->vif.bss_conf.use_cts_prot = false; |
| 282 | sdata->vif.bss_conf.use_short_preamble = false; |
| 283 | sdata->vif.bss_conf.use_short_slot = false; |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 284 | return BSS_CHANGED_ERP_CTS_PROT | |
| 285 | BSS_CHANGED_ERP_PREAMBLE | |
| 286 | BSS_CHANGED_ERP_SLOT; |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 287 | } |
| 288 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 289 | static void ieee80211_tasklet_handler(unsigned long data) |
| 290 | { |
| 291 | struct ieee80211_local *local = (struct ieee80211_local *) data; |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 292 | struct sta_info *sta, *tmp; |
| 293 | struct skb_eosp_msg_data *eosp_data; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 294 | struct sk_buff *skb; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 295 | |
| 296 | while ((skb = skb_dequeue(&local->skb_queue)) || |
| 297 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { |
| 298 | switch (skb->pkt_type) { |
| 299 | case IEEE80211_RX_MSG: |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 300 | /* Clear skb->pkt_type in order to not confuse kernel |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 301 | * netstack. */ |
| 302 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 303 | ieee80211_rx(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 304 | break; |
| 305 | case IEEE80211_TX_STATUS_MSG: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 306 | skb->pkt_type = 0; |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 307 | ieee80211_tx_status(&local->hw, skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 308 | break; |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 309 | case IEEE80211_EOSP_MSG: |
| 310 | eosp_data = (void *)skb->cb; |
| 311 | for_each_sta_info(local, eosp_data->sta, sta, tmp) { |
| 312 | /* skip wrong virtual interface */ |
| 313 | if (memcmp(eosp_data->iface, |
| 314 | sta->sdata->vif.addr, ETH_ALEN)) |
| 315 | continue; |
| 316 | clear_sta_flag(sta, WLAN_STA_SP); |
| 317 | break; |
| 318 | } |
| 319 | dev_kfree_skb(skb); |
| 320 | break; |
Johannes Berg | f4ea83d | 2008-06-30 15:10:46 +0200 | [diff] [blame] | 321 | default: |
Larry Finger | 5e3f308 | 2008-12-17 14:26:59 -0600 | [diff] [blame] | 322 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
| 323 | skb->pkt_type); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 324 | dev_kfree_skb(skb); |
| 325 | break; |
| 326 | } |
| 327 | } |
| 328 | } |
| 329 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 330 | static void ieee80211_restart_work(struct work_struct *work) |
| 331 | { |
| 332 | struct ieee80211_local *local = |
| 333 | container_of(work, struct ieee80211_local, restart_work); |
| 334 | |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 335 | /* wait for scan work complete */ |
| 336 | flush_workqueue(local->workqueue); |
| 337 | |
| 338 | mutex_lock(&local->mtx); |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 339 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || |
Johannes Berg | 5260a5b | 2012-07-06 21:55:11 +0200 | [diff] [blame] | 340 | rcu_dereference_protected(local->sched_scan_sdata, |
| 341 | lockdep_is_held(&local->mtx)), |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 342 | "%s called with hardware scan in progress\n", __func__); |
| 343 | mutex_unlock(&local->mtx); |
| 344 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 345 | rtnl_lock(); |
Stanislaw Gruszka | 4136c42 | 2010-10-06 11:22:10 +0200 | [diff] [blame] | 346 | ieee80211_scan_cancel(local); |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 347 | ieee80211_reconfig(local); |
| 348 | rtnl_unlock(); |
| 349 | } |
| 350 | |
| 351 | void ieee80211_restart_hw(struct ieee80211_hw *hw) |
| 352 | { |
| 353 | struct ieee80211_local *local = hw_to_local(hw); |
| 354 | |
Johannes Berg | b5878a2 | 2010-04-07 16:48:40 +0200 | [diff] [blame] | 355 | trace_api_restart_hw(local); |
| 356 | |
Michael Buesch | b196d03 | 2011-03-07 13:09:12 +0100 | [diff] [blame] | 357 | wiphy_info(hw->wiphy, |
| 358 | "Hardware restart was requested\n"); |
| 359 | |
John W. Linville | 18145c6 | 2010-08-30 15:12:02 -0400 | [diff] [blame] | 360 | /* use this reason, ieee80211_reconfig will unblock it */ |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 361 | ieee80211_stop_queues_by_reason(hw, |
| 362 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); |
| 363 | |
Arik Nemtsov | 04800ad | 2012-06-06 11:25:02 +0300 | [diff] [blame] | 364 | /* |
| 365 | * Stop all Rx during the reconfig. We don't want state changes |
| 366 | * or driver callbacks while this is in progress. |
| 367 | */ |
| 368 | local->in_reconfig = true; |
| 369 | barrier(); |
| 370 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 371 | schedule_work(&local->restart_work); |
| 372 | } |
| 373 | EXPORT_SYMBOL(ieee80211_restart_hw); |
| 374 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 375 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 376 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
| 377 | unsigned long data, void *arg) |
| 378 | { |
| 379 | struct in_ifaddr *ifa = arg; |
| 380 | struct ieee80211_local *local = |
| 381 | container_of(nb, struct ieee80211_local, |
| 382 | ifa_notifier); |
| 383 | struct net_device *ndev = ifa->ifa_dev->dev; |
| 384 | struct wireless_dev *wdev = ndev->ieee80211_ptr; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 385 | struct in_device *idev; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 386 | struct ieee80211_sub_if_data *sdata; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 387 | struct ieee80211_bss_conf *bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 388 | struct ieee80211_if_managed *ifmgd; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 389 | int c = 0; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 390 | |
| 391 | /* Make sure it's our interface that got changed */ |
| 392 | if (!wdev) |
| 393 | return NOTIFY_DONE; |
| 394 | |
| 395 | if (wdev->wiphy != local->hw.wiphy) |
| 396 | return NOTIFY_DONE; |
| 397 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 398 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 399 | bss_conf = &sdata->vif.bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 400 | |
| 401 | /* ARP filtering is only supported in managed mode */ |
| 402 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 403 | return NOTIFY_DONE; |
| 404 | |
Eric Dumazet | 95ae6b2 | 2010-09-15 04:04:31 +0000 | [diff] [blame] | 405 | idev = __in_dev_get_rtnl(sdata->dev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 406 | if (!idev) |
| 407 | return NOTIFY_DONE; |
| 408 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 409 | ifmgd = &sdata->u.mgd; |
| 410 | mutex_lock(&ifmgd->mtx); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 411 | |
| 412 | /* Copy the addresses to the bss_conf list */ |
| 413 | ifa = idev->ifa_list; |
| 414 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { |
| 415 | bss_conf->arp_addr_list[c] = ifa->ifa_address; |
| 416 | ifa = ifa->ifa_next; |
| 417 | c++; |
| 418 | } |
| 419 | |
| 420 | /* If not all addresses fit the list, disable filtering */ |
| 421 | if (ifa) { |
| 422 | sdata->arp_filter_state = false; |
| 423 | c = 0; |
| 424 | } else { |
| 425 | sdata->arp_filter_state = true; |
| 426 | } |
| 427 | bss_conf->arp_addr_cnt = c; |
| 428 | |
Eliad Peller | 53d69c3 | 2011-12-12 15:30:04 +0200 | [diff] [blame] | 429 | /* Configure driver only if associated (which also implies it is up) */ |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 430 | if (ifmgd->associated) { |
| 431 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; |
| 432 | ieee80211_bss_info_change_notify(sdata, |
| 433 | BSS_CHANGED_ARP_FILTER); |
| 434 | } |
| 435 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 436 | mutex_unlock(&ifmgd->mtx); |
| 437 | |
| 438 | return NOTIFY_DONE; |
| 439 | } |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 440 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 441 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 442 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
| 443 | { |
| 444 | struct ieee80211_local *local = |
| 445 | container_of(napi, struct ieee80211_local, napi); |
| 446 | |
| 447 | return local->ops->napi_poll(&local->hw, budget); |
| 448 | } |
| 449 | |
| 450 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) |
| 451 | { |
| 452 | struct ieee80211_local *local = hw_to_local(hw); |
| 453 | |
| 454 | napi_schedule(&local->napi); |
| 455 | } |
| 456 | EXPORT_SYMBOL(ieee80211_napi_schedule); |
| 457 | |
| 458 | void ieee80211_napi_complete(struct ieee80211_hw *hw) |
| 459 | { |
| 460 | struct ieee80211_local *local = hw_to_local(hw); |
| 461 | |
| 462 | napi_complete(&local->napi); |
| 463 | } |
| 464 | EXPORT_SYMBOL(ieee80211_napi_complete); |
| 465 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 466 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
| 467 | static const struct ieee80211_txrx_stypes |
| 468 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { |
| 469 | [NL80211_IFTYPE_ADHOC] = { |
| 470 | .tx = 0xffff, |
Will Hawkins | 3bfda62 | 2012-06-19 17:59:14 -0400 | [diff] [blame] | 471 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 472 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 473 | BIT(IEEE80211_STYPE_DEAUTH >> 4), |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 474 | }, |
| 475 | [NL80211_IFTYPE_STATION] = { |
| 476 | .tx = 0xffff, |
| 477 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 478 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 479 | }, |
| 480 | [NL80211_IFTYPE_AP] = { |
| 481 | .tx = 0xffff, |
| 482 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 483 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 484 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 485 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 486 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 487 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 488 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 489 | }, |
| 490 | [NL80211_IFTYPE_AP_VLAN] = { |
| 491 | /* copy AP */ |
| 492 | .tx = 0xffff, |
| 493 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 494 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 495 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 496 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 497 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 498 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 499 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 500 | }, |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 501 | [NL80211_IFTYPE_P2P_CLIENT] = { |
| 502 | .tx = 0xffff, |
| 503 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 504 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 505 | }, |
| 506 | [NL80211_IFTYPE_P2P_GO] = { |
| 507 | .tx = 0xffff, |
| 508 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 509 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 510 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 511 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 512 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 513 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 514 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 515 | }, |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 516 | [NL80211_IFTYPE_MESH_POINT] = { |
| 517 | .tx = 0xffff, |
Javier Cardona | 7183912 | 2011-04-07 15:08:31 -0700 | [diff] [blame] | 518 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 519 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 520 | BIT(IEEE80211_STYPE_DEAUTH >> 4), |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 521 | }, |
Johannes Berg | f142c6b | 2012-06-18 20:07:15 +0200 | [diff] [blame] | 522 | [NL80211_IFTYPE_P2P_DEVICE] = { |
| 523 | .tx = 0xffff, |
| 524 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 525 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 526 | }, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 527 | }; |
| 528 | |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 529 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
| 530 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | |
| 531 | IEEE80211_HT_AMPDU_PARM_DENSITY, |
| 532 | |
| 533 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| 534 | IEEE80211_HT_CAP_MAX_AMSDU | |
| 535 | IEEE80211_HT_CAP_SGI_40), |
| 536 | .mcs = { |
| 537 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, |
| 538 | 0xff, 0xff, 0xff, 0xff, 0xff, }, |
| 539 | }, |
| 540 | }; |
| 541 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 542 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 543 | const struct ieee80211_ops *ops) |
| 544 | { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 545 | struct ieee80211_local *local; |
Johannes Berg | 96f5e66 | 2009-02-12 00:51:53 +0100 | [diff] [blame] | 546 | int priv_size, i; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 547 | struct wiphy *wiphy; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 548 | bool use_chanctx; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 549 | |
Johannes Berg | c0af073 | 2012-07-26 14:42:10 +0200 | [diff] [blame] | 550 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
| 551 | !ops->add_interface || !ops->remove_interface || |
| 552 | !ops->configure_filter)) |
| 553 | return NULL; |
| 554 | |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 555 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
| 556 | return NULL; |
| 557 | |
Johannes Berg | e269d86 | 2012-07-26 14:46:32 +0200 | [diff] [blame] | 558 | /* check all or no channel context operations exist */ |
| 559 | i = !!ops->add_chanctx + !!ops->remove_chanctx + |
| 560 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + |
| 561 | !!ops->unassign_vif_chanctx; |
| 562 | if (WARN_ON(i != 0 && i != 5)) |
| 563 | return NULL; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 564 | use_chanctx = i == 5; |
Johannes Berg | e269d86 | 2012-07-26 14:46:32 +0200 | [diff] [blame] | 565 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 566 | /* Ensure 32-byte alignment of our private data and hw private data. |
| 567 | * We use the wiphy priv data for both our ieee80211_local and for |
| 568 | * the driver's private data |
| 569 | * |
| 570 | * In memory it'll be like this: |
| 571 | * |
| 572 | * +-------------------------+ |
| 573 | * | struct wiphy | |
| 574 | * +-------------------------+ |
| 575 | * | struct ieee80211_local | |
| 576 | * +-------------------------+ |
| 577 | * | driver's private data | |
| 578 | * +-------------------------+ |
| 579 | * |
| 580 | */ |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 581 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 582 | |
| 583 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); |
| 584 | |
| 585 | if (!wiphy) |
| 586 | return NULL; |
| 587 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 588 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
| 589 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 590 | wiphy->privid = mac80211_wiphy_privid; |
| 591 | |
Johannes Berg | 9bc383d | 2009-11-19 11:55:19 +0100 | [diff] [blame] | 592 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
| 593 | WIPHY_FLAG_4ADDR_AP | |
Johannes Berg | ee97192 | 2011-11-04 11:18:18 +0100 | [diff] [blame] | 594 | WIPHY_FLAG_4ADDR_STATION | |
Johannes Berg | 7c4ef71 | 2011-11-18 15:33:48 +0100 | [diff] [blame] | 595 | WIPHY_FLAG_REPORTS_OBSS | |
Johannes Berg | 81ddbb5 | 2012-03-26 18:47:18 +0200 | [diff] [blame] | 596 | WIPHY_FLAG_OFFCHAN_TX; |
| 597 | |
| 598 | if (ops->remain_on_channel) |
| 599 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 600 | |
Alexander Simon | 13c40c5 | 2011-11-30 16:56:34 +0100 | [diff] [blame] | 601 | wiphy->features = NL80211_FEATURE_SK_TX_STATUS | |
Jouni Malinen | 6b8ece3 | 2012-09-30 19:29:40 +0300 | [diff] [blame] | 602 | NL80211_FEATURE_SAE | |
Alexander Simon | 13c40c5 | 2011-11-30 16:56:34 +0100 | [diff] [blame] | 603 | NL80211_FEATURE_HT_IBSS; |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 604 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 605 | if (!ops->set_key) |
| 606 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
Johannes Berg | 18a8365 | 2009-03-31 12:12:05 +0200 | [diff] [blame] | 607 | |
Johannes Berg | 0c1ad2c | 2009-12-23 13:15:39 +0100 | [diff] [blame] | 608 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 609 | |
| 610 | local = wiphy_priv(wiphy); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 611 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 612 | local->hw.wiphy = wiphy; |
| 613 | |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 614 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 615 | |
| 616 | local->ops = ops; |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 617 | local->use_chanctx = use_chanctx; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 618 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 619 | /* set up some defaults */ |
| 620 | local->hw.queues = 1; |
| 621 | local->hw.max_rates = 1; |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 622 | local->hw.max_report_rates = 0; |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 623 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Helmut Schaa | 39e6871 | 2011-08-05 11:46:19 +0200 | [diff] [blame] | 624 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 625 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 626 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| 627 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 628 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
| 629 | IEEE80211_RADIOTAP_MCS_HAVE_GI | |
| 630 | IEEE80211_RADIOTAP_MCS_HAVE_BW; |
Johannes Berg | c428c89 | 2009-04-29 00:28:18 +0200 | [diff] [blame] | 631 | local->user_power_level = -1; |
Ben Greear | ef96a842 | 2011-11-18 11:32:00 -0800 | [diff] [blame] | 632 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 633 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 634 | INIT_LIST_HEAD(&local->interfaces); |
YOSHIFUJI Hideaki / 吉藤英明 | 2f787b0 | 2010-04-04 17:59:30 +0000 | [diff] [blame] | 635 | |
| 636 | __hw_addr_init(&local->mc_list); |
| 637 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 638 | mutex_init(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 639 | mutex_init(&local->mtx); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 640 | |
Johannes Berg | ad0e2b5 | 2010-06-01 10:19:19 +0200 | [diff] [blame] | 641 | mutex_init(&local->key_mtx); |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 642 | spin_lock_init(&local->filter_lock); |
Kalle Valo | ce7c911 | 2008-12-18 23:35:20 +0200 | [diff] [blame] | 643 | spin_lock_init(&local->queue_stop_reason_lock); |
| 644 | |
Michal Kazior | d01a1e6 | 2012-06-26 14:37:16 +0200 | [diff] [blame] | 645 | INIT_LIST_HEAD(&local->chanctx_list); |
| 646 | mutex_init(&local->chanctx_mtx); |
| 647 | |
Johannes Berg | 681c4d0 | 2011-01-12 13:40:33 +0100 | [diff] [blame] | 648 | /* |
| 649 | * The rx_skb_queue is only accessed from tasklets, |
| 650 | * but other SKB queues are used from within IRQ |
| 651 | * context. Therefore, this one needs a different |
| 652 | * locking class so our direct, non-irq-safe use of |
| 653 | * the queue's lock doesn't throw lockdep warnings. |
| 654 | */ |
| 655 | skb_queue_head_init_class(&local->rx_skb_queue, |
| 656 | &ieee80211_rx_skb_queue_class); |
Christian Lamparter | 24a8fda | 2010-12-30 17:25:29 +0100 | [diff] [blame] | 657 | |
Johannes Berg | c2b1345 | 2008-09-11 00:01:55 +0200 | [diff] [blame] | 658 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 659 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 660 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
| 661 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 662 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 663 | local->smps_mode = IEEE80211_SMPS_OFF; |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 664 | |
Kalle Valo | 520eb82 | 2008-12-18 23:35:27 +0200 | [diff] [blame] | 665 | INIT_WORK(&local->dynamic_ps_enable_work, |
| 666 | ieee80211_dynamic_ps_enable_work); |
| 667 | INIT_WORK(&local->dynamic_ps_disable_work, |
| 668 | ieee80211_dynamic_ps_disable_work); |
| 669 | setup_timer(&local->dynamic_ps_timer, |
| 670 | ieee80211_dynamic_ps_timer, (unsigned long) local); |
| 671 | |
Luciano Coelho | 85a9994 | 2011-05-12 16:28:29 +0300 | [diff] [blame] | 672 | INIT_WORK(&local->sched_scan_stopped_work, |
| 673 | ieee80211_sched_scan_stopped_work); |
| 674 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 675 | spin_lock_init(&local->ack_status_lock); |
| 676 | idr_init(&local->ack_status_frames); |
| 677 | /* preallocate at least one entry */ |
| 678 | idr_pre_get(&local->ack_status_frames, GFP_KERNEL); |
| 679 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 680 | sta_info_init(local); |
| 681 | |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 682 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
Johannes Berg | 2a577d9 | 2009-03-23 17:28:37 +0100 | [diff] [blame] | 683 | skb_queue_head_init(&local->pending[i]); |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 684 | atomic_set(&local->agg_queue_stop[i], 0); |
| 685 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 686 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
| 687 | (unsigned long)local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 688 | |
| 689 | tasklet_init(&local->tasklet, |
| 690 | ieee80211_tasklet_handler, |
| 691 | (unsigned long) local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 692 | |
| 693 | skb_queue_head_init(&local->skb_queue); |
| 694 | skb_queue_head_init(&local->skb_queue_unreliable); |
| 695 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 696 | /* init dummy netdev for use w/ NAPI */ |
| 697 | init_dummy_netdev(&local->napi_dev); |
| 698 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 699 | ieee80211_led_names(local); |
| 700 | |
Johannes Berg | 2eb278e | 2012-06-05 14:28:42 +0200 | [diff] [blame] | 701 | ieee80211_roc_setup(local); |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 702 | |
Johannes Berg | 005e472 | 2012-02-26 11:24:35 +0100 | [diff] [blame] | 703 | return &local->hw; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 704 | } |
| 705 | EXPORT_SYMBOL(ieee80211_alloc_hw); |
| 706 | |
| 707 | int ieee80211_register_hw(struct ieee80211_hw *hw) |
| 708 | { |
| 709 | struct ieee80211_local *local = hw_to_local(hw); |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 710 | int result, i; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 711 | enum ieee80211_band band; |
Johannes Berg | be4a4b6 | 2010-05-03 08:49:48 +0200 | [diff] [blame] | 712 | int channels, max_bitrates; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 713 | bool supp_ht, supp_vht; |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 714 | netdev_features_t feature_whitelist; |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 715 | static const u32 cipher_suites[] = { |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 716 | /* keep WEP first, it may be removed below */ |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 717 | WLAN_CIPHER_SUITE_WEP40, |
| 718 | WLAN_CIPHER_SUITE_WEP104, |
| 719 | WLAN_CIPHER_SUITE_TKIP, |
| 720 | WLAN_CIPHER_SUITE_CCMP, |
| 721 | |
| 722 | /* keep last -- depends on hw flags! */ |
| 723 | WLAN_CIPHER_SUITE_AES_CMAC |
| 724 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 725 | |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 726 | if (hw->flags & IEEE80211_HW_QUEUE_CONTROL && |
| 727 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
| 728 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) |
| 729 | return -EINVAL; |
| 730 | |
Larry Finger | 38bb3e9 | 2011-05-05 18:48:47 -0500 | [diff] [blame] | 731 | #ifdef CONFIG_PM |
Johannes Berg | dfb89c5 | 2012-06-27 09:23:48 +0200 | [diff] [blame] | 732 | if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) && |
| 733 | (!local->ops->suspend || !local->ops->resume)) |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 734 | return -EINVAL; |
Johannes Berg | dfb89c5 | 2012-06-27 09:23:48 +0200 | [diff] [blame] | 735 | #endif |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 736 | |
Eliad Peller | 885bd8e | 2012-02-02 17:44:55 +0200 | [diff] [blame] | 737 | if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) |
| 738 | return -EINVAL; |
| 739 | |
Johannes Berg | fe57d9f | 2012-07-26 14:55:08 +0200 | [diff] [blame] | 740 | if (!local->use_chanctx) { |
| 741 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
| 742 | const struct ieee80211_iface_combination *comb; |
| 743 | |
| 744 | comb = &local->hw.wiphy->iface_combinations[i]; |
| 745 | |
| 746 | if (comb->num_different_channels > 1) |
| 747 | return -EINVAL; |
| 748 | } |
| 749 | |
| 750 | /* |
| 751 | * WDS is currently prohibited when channel contexts are used |
| 752 | * because there's no clear definition of which channel WDS |
| 753 | * type interfaces use |
| 754 | */ |
| 755 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) |
| 756 | return -EINVAL; |
| 757 | } |
| 758 | |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 759 | /* Only HW csum features are currently compatible with mac80211 */ |
| 760 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| 761 | NETIF_F_HW_CSUM; |
| 762 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) |
| 763 | return -EINVAL; |
| 764 | |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 765 | if (hw->max_report_rates == 0) |
| 766 | hw->max_report_rates = hw->max_rates; |
| 767 | |
Johannes Berg | 04ecd25 | 2012-09-11 14:34:12 +0200 | [diff] [blame] | 768 | local->rx_chains = 1; |
| 769 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 770 | /* |
| 771 | * generic code guarantees at least one band, |
| 772 | * set this very early because much code assumes |
| 773 | * that hw.conf.channel is assigned |
| 774 | */ |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 775 | channels = 0; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 776 | max_bitrates = 0; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 777 | supp_ht = false; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 778 | supp_vht = false; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 779 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 780 | struct ieee80211_supported_band *sband; |
| 781 | |
| 782 | sband = local->hw.wiphy->bands[band]; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 783 | if (!sband) |
| 784 | continue; |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 785 | if (!local->use_chanctx && !local->_oper_channel) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 786 | /* init channel we're on */ |
| 787 | local->hw.conf.channel = |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 788 | local->_oper_channel = &sband->channels[0]; |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 789 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 790 | } |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 791 | if (!local->monitor_channel) { |
| 792 | local->monitor_channel = &sband->channels[0]; |
| 793 | local->monitor_channel_type = NL80211_CHAN_NO_HT; |
| 794 | } |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 795 | channels += sband->n_channels; |
| 796 | |
| 797 | if (max_bitrates < sband->n_bitrates) |
| 798 | max_bitrates = sband->n_bitrates; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 799 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 800 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
Johannes Berg | 04ecd25 | 2012-09-11 14:34:12 +0200 | [diff] [blame] | 801 | |
| 802 | if (sband->ht_cap.ht_supported) |
| 803 | local->rx_chains = |
| 804 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), |
| 805 | local->rx_chains); |
| 806 | |
| 807 | /* TODO: consider VHT for RX chains, hopefully it's the same */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 808 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 809 | |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 810 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
| 811 | sizeof(void *) * channels, GFP_KERNEL); |
| 812 | if (!local->int_scan_req) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 813 | return -ENOMEM; |
| 814 | |
Simon Wunderlich | c72e8d3 | 2011-11-30 16:56:30 +0100 | [diff] [blame] | 815 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 816 | if (!local->hw.wiphy->bands[band]) |
| 817 | continue; |
| 818 | local->int_scan_req->rates[band] = (u32) -1; |
| 819 | } |
| 820 | |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 821 | /* if low-level driver supports AP, we also support VLAN */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 822 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
| 823 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 824 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 825 | } |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 826 | |
| 827 | /* mac80211 always supports monitor */ |
Johannes Berg | 7527a78 | 2011-05-13 10:58:57 +0200 | [diff] [blame] | 828 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
| 829 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); |
| 830 | |
Johannes Berg | 55de908 | 2012-07-26 17:24:39 +0200 | [diff] [blame] | 831 | /* mac80211 doesn't support more than one IBSS interface right now */ |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 832 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
| 833 | const struct ieee80211_iface_combination *c; |
| 834 | int j; |
| 835 | |
| 836 | c = &hw->wiphy->iface_combinations[i]; |
| 837 | |
Johannes Berg | 8e621fc | 2011-05-14 01:55:23 +0200 | [diff] [blame] | 838 | for (j = 0; j < c->n_limits; j++) |
| 839 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && |
| 840 | c->limits[j].max > 1) |
| 841 | return -EINVAL; |
| 842 | } |
| 843 | |
Johannes Berg | 5eb5a52 | 2010-08-25 14:34:01 +0200 | [diff] [blame] | 844 | #ifndef CONFIG_MAC80211_MESH |
| 845 | /* mesh depends on Kconfig, but drivers should set it if they want */ |
| 846 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); |
| 847 | #endif |
| 848 | |
Javier Cardona | 1570ca5 | 2011-04-07 15:08:35 -0700 | [diff] [blame] | 849 | /* if the underlying driver supports mesh, mac80211 will (at least) |
| 850 | * provide routing of mesh authentication frames to userspace */ |
| 851 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) |
| 852 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; |
| 853 | |
Johannes Berg | a621fa4 | 2010-08-27 14:26:54 +0300 | [diff] [blame] | 854 | /* mac80211 supports control port protocol changing */ |
| 855 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; |
| 856 | |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 857 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
| 858 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| 859 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) |
| 860 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
| 861 | |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 862 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
| 863 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), |
| 864 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); |
| 865 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 866 | /* |
| 867 | * Calculate scan IE length -- we need this to alloc |
| 868 | * memory and to subtract from the driver limit. It |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 869 | * includes the DS Params, (extended) supported rates, and HT |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 870 | * information -- SSID is the driver's responsibility. |
| 871 | */ |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 872 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
| 873 | 3 /* DS Params */; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 874 | if (supp_ht) |
| 875 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 876 | |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 877 | if (supp_vht) |
| 878 | local->scan_ies_len += |
Mahesh Palivela | d495028 | 2012-10-10 11:25:40 +0000 | [diff] [blame^] | 879 | 2 + sizeof(struct ieee80211_vht_cap); |
Mahesh Palivela | ba0afa2f | 2012-07-02 11:25:12 +0000 | [diff] [blame] | 880 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 881 | if (!local->ops->hw_scan) { |
| 882 | /* For hw_scan, driver needs to set these up. */ |
| 883 | local->hw.wiphy->max_scan_ssids = 4; |
| 884 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; |
| 885 | } |
| 886 | |
| 887 | /* |
| 888 | * If the driver supports any scan IEs, then assume the |
| 889 | * limit includes the IEs mac80211 will add, otherwise |
| 890 | * leave it at zero and let the driver sort it out; we |
| 891 | * still pass our IEs to the driver but userspace will |
| 892 | * not be allowed to in that case. |
| 893 | */ |
| 894 | if (local->hw.wiphy->max_scan_ie_len) |
| 895 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; |
| 896 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 897 | /* Set up cipher suites unless driver already did */ |
| 898 | if (!local->hw.wiphy->cipher_suites) { |
| 899 | local->hw.wiphy->cipher_suites = cipher_suites; |
| 900 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| 901 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) |
| 902 | local->hw.wiphy->n_cipher_suites--; |
| 903 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 904 | 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] | 905 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
| 906 | local->hw.wiphy->cipher_suites += 2; |
| 907 | local->hw.wiphy->n_cipher_suites -= 2; |
| 908 | } else { |
| 909 | u32 *suites; |
| 910 | int r, w = 0; |
| 911 | |
| 912 | /* Filter out WEP */ |
| 913 | |
| 914 | suites = kmemdup( |
| 915 | local->hw.wiphy->cipher_suites, |
| 916 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, |
| 917 | GFP_KERNEL); |
| 918 | if (!suites) |
| 919 | return -ENOMEM; |
| 920 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
| 921 | u32 suite = local->hw.wiphy->cipher_suites[r]; |
| 922 | if (suite == WLAN_CIPHER_SUITE_WEP40 || |
| 923 | suite == WLAN_CIPHER_SUITE_WEP104) |
| 924 | continue; |
| 925 | suites[w++] = suite; |
| 926 | } |
| 927 | local->hw.wiphy->cipher_suites = suites; |
| 928 | local->hw.wiphy->n_cipher_suites = w; |
| 929 | local->wiphy_ciphers_allocated = true; |
| 930 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 931 | } |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 932 | |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 933 | if (!local->ops->remain_on_channel) |
| 934 | local->hw.wiphy->max_remain_on_channel_duration = 5000; |
Johannes Berg | a293911 | 2010-12-14 17:54:28 +0100 | [diff] [blame] | 935 | |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 936 | if (local->ops->sched_scan_start) |
| 937 | local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
| 938 | |
Arik Nemtsov | dfe018b | 2011-09-28 14:12:52 +0300 | [diff] [blame] | 939 | /* mac80211 based drivers don't support internal TDLS setup */ |
| 940 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) |
| 941 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; |
| 942 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 943 | result = wiphy_register(local->hw.wiphy); |
| 944 | if (result < 0) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 945 | goto fail_wiphy_register; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 946 | |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 947 | /* |
| 948 | * We use the number of queues for feature tests (QoS, HT) internally |
| 949 | * so restrict them appropriately. |
| 950 | */ |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 951 | if (hw->queues > IEEE80211_MAX_QUEUES) |
| 952 | hw->queues = IEEE80211_MAX_QUEUES; |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 953 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 954 | local->workqueue = |
Tejun Heo | 99b88a0 | 2010-10-15 17:35:28 +0200 | [diff] [blame] | 955 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 956 | if (!local->workqueue) { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 957 | result = -ENOMEM; |
| 958 | goto fail_workqueue; |
| 959 | } |
| 960 | |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 961 | /* |
| 962 | * The hardware needs headroom for sending the frame, |
| 963 | * and we need some headroom for passing the frame to monitor |
| 964 | * interfaces, but never both at the same time. |
| 965 | */ |
Jiri Benc | 33ccad3 | 2007-07-18 17:10:44 +0200 | [diff] [blame] | 966 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
Helmut Schaa | a2fe816 | 2011-10-11 18:08:54 +0200 | [diff] [blame] | 967 | IEEE80211_TX_STATUS_HEADROOM); |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 968 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 969 | debugfs_hw_add(local); |
| 970 | |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 971 | /* |
| 972 | * if the driver doesn't specify a max listen interval we |
| 973 | * use 5 which should be a safe default |
| 974 | */ |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 975 | if (local->hw.max_listen_interval == 0) |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 976 | local->hw.max_listen_interval = 5; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 977 | |
| 978 | local->hw.conf.listen_interval = local->hw.max_listen_interval; |
| 979 | |
Juuso Oikarinen | ff61638 | 2010-06-09 09:51:52 +0300 | [diff] [blame] | 980 | local->dynamic_ps_forced_timeout = -1; |
Juuso Oikarinen | 195e294 | 2010-04-27 12:47:40 +0300 | [diff] [blame] | 981 | |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 982 | result = ieee80211_wep_init(local); |
John W. Linville | 3473187 | 2010-07-07 15:07:49 -0400 | [diff] [blame] | 983 | if (result < 0) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 984 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
| 985 | result); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 986 | |
Mohammed Shafi Shajakhan | b57e6b5 | 2012-02-09 19:59:43 +0530 | [diff] [blame] | 987 | ieee80211_led_init(local); |
| 988 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 989 | rtnl_lock(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 990 | |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 991 | result = ieee80211_init_rate_ctrl_alg(local, |
| 992 | hw->rate_control_algorithm); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 993 | if (result < 0) { |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 994 | wiphy_debug(local->hw.wiphy, |
| 995 | "Failed to initialize rate control algorithm\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 996 | goto fail_rate; |
| 997 | } |
| 998 | |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 999 | /* add one default STA interface if supported */ |
| 1000 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { |
| 1001 | result = ieee80211_if_add(local, "wlan%d", NULL, |
| 1002 | NL80211_IFTYPE_STATION, NULL); |
| 1003 | if (result) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1004 | wiphy_warn(local->hw.wiphy, |
| 1005 | "Failed to add default virtual iface\n"); |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 1006 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1007 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1008 | rtnl_unlock(); |
| 1009 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1010 | local->network_latency_notifier.notifier_call = |
| 1011 | ieee80211_max_network_latency; |
| 1012 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, |
| 1013 | &local->network_latency_notifier); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1014 | if (result) { |
| 1015 | rtnl_lock(); |
| 1016 | goto fail_pm_qos; |
| 1017 | } |
| 1018 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1019 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1020 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
| 1021 | result = register_inetaddr_notifier(&local->ifa_notifier); |
| 1022 | if (result) |
| 1023 | goto fail_ifa; |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1024 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1025 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 1026 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
| 1027 | local->hw.napi_weight); |
| 1028 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1029 | return 0; |
| 1030 | |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 1031 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1032 | fail_ifa: |
| 1033 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 1034 | &local->network_latency_notifier); |
| 1035 | rtnl_lock(); |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 1036 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1037 | fail_pm_qos: |
| 1038 | ieee80211_led_exit(local); |
| 1039 | ieee80211_remove_interfaces(local); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1040 | fail_rate: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1041 | rtnl_unlock(); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 1042 | ieee80211_wep_free(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1043 | sta_info_stop(local); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1044 | destroy_workqueue(local->workqueue); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1045 | fail_workqueue: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1046 | wiphy_unregister(local->hw.wiphy); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1047 | fail_wiphy_register: |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1048 | if (local->wiphy_ciphers_allocated) |
| 1049 | kfree(local->hw.wiphy->cipher_suites); |
Johannes Berg | 11ba964 | 2009-08-19 19:45:50 +0200 | [diff] [blame] | 1050 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1051 | return result; |
| 1052 | } |
| 1053 | EXPORT_SYMBOL(ieee80211_register_hw); |
| 1054 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1055 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
| 1056 | { |
| 1057 | struct ieee80211_local *local = hw_to_local(hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1058 | |
| 1059 | tasklet_kill(&local->tx_pending_tasklet); |
| 1060 | tasklet_kill(&local->tasklet); |
| 1061 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1062 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 1063 | &local->network_latency_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1064 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 1065 | unregister_inetaddr_notifier(&local->ifa_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 1066 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 1067 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1068 | rtnl_lock(); |
| 1069 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1070 | /* |
| 1071 | * At this point, interface list manipulations are fine |
| 1072 | * because the driver cannot be handing us frames any |
| 1073 | * more and the tasklet is killed. |
| 1074 | */ |
Johannes Berg | 7563652 | 2008-07-09 14:40:35 +0200 | [diff] [blame] | 1075 | ieee80211_remove_interfaces(local); |
Johannes Berg | 5b2812e | 2007-09-26 14:27:23 +0200 | [diff] [blame] | 1076 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1077 | rtnl_unlock(); |
| 1078 | |
Christian Lamparter | 258086a | 2010-08-22 23:48:25 +0200 | [diff] [blame] | 1079 | cancel_work_sync(&local->restart_work); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1080 | cancel_work_sync(&local->reconfig_filter); |
| 1081 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1082 | ieee80211_clear_tx_pending(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1083 | rate_control_deinitialize(local); |
| 1084 | |
Joe Perches | f64f9e7 | 2009-11-29 16:55:45 -0800 | [diff] [blame] | 1085 | if (skb_queue_len(&local->skb_queue) || |
| 1086 | skb_queue_len(&local->skb_queue_unreliable)) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 1087 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1088 | skb_queue_purge(&local->skb_queue); |
| 1089 | skb_queue_purge(&local->skb_queue_unreliable); |
Christian Lamparter | 24a8fda | 2010-12-30 17:25:29 +0100 | [diff] [blame] | 1090 | skb_queue_purge(&local->rx_skb_queue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1091 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1092 | destroy_workqueue(local->workqueue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1093 | wiphy_unregister(local->hw.wiphy); |
Stanislaw Gruszka | ecb4433 | 2011-08-12 14:00:59 +0200 | [diff] [blame] | 1094 | sta_info_stop(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1095 | ieee80211_wep_free(local); |
| 1096 | ieee80211_led_exit(local); |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 1097 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1098 | } |
| 1099 | EXPORT_SYMBOL(ieee80211_unregister_hw); |
| 1100 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1101 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
| 1102 | { |
| 1103 | WARN_ONCE(1, "Have pending ack frames!\n"); |
| 1104 | kfree_skb(p); |
| 1105 | return 0; |
| 1106 | } |
| 1107 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1108 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
| 1109 | { |
| 1110 | struct ieee80211_local *local = hw_to_local(hw); |
| 1111 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1112 | mutex_destroy(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 1113 | mutex_destroy(&local->mtx); |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1114 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1115 | if (local->wiphy_ciphers_allocated) |
| 1116 | kfree(local->hw.wiphy->cipher_suites); |
| 1117 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 1118 | idr_for_each(&local->ack_status_frames, |
| 1119 | ieee80211_free_ack_frame, NULL); |
| 1120 | idr_destroy(&local->ack_status_frames); |
| 1121 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1122 | wiphy_free(local->hw.wiphy); |
| 1123 | } |
| 1124 | EXPORT_SYMBOL(ieee80211_free_hw); |
| 1125 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1126 | static int __init ieee80211_init(void) |
| 1127 | { |
| 1128 | struct sk_buff *skb; |
| 1129 | int ret; |
| 1130 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1131 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
| 1132 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + |
Johannes Berg | c6a1fa1 | 2008-10-07 12:04:32 +0200 | [diff] [blame] | 1133 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1134 | |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1135 | ret = rc80211_minstrel_init(); |
| 1136 | if (ret) |
| 1137 | return ret; |
| 1138 | |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1139 | ret = rc80211_minstrel_ht_init(); |
| 1140 | if (ret) |
| 1141 | goto err_minstrel; |
| 1142 | |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1143 | ret = rc80211_pid_init(); |
Mattias Nissler | ad01837 | 2007-12-19 01:25:57 +0100 | [diff] [blame] | 1144 | if (ret) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1145 | goto err_pid; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1146 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1147 | ret = ieee80211_iface_init(); |
| 1148 | if (ret) |
| 1149 | goto err_netdev; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 1150 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1151 | return 0; |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1152 | err_netdev: |
| 1153 | rc80211_pid_exit(); |
| 1154 | err_pid: |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1155 | rc80211_minstrel_ht_exit(); |
| 1156 | err_minstrel: |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1157 | rc80211_minstrel_exit(); |
| 1158 | |
| 1159 | return ret; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1160 | } |
| 1161 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1162 | static void __exit ieee80211_exit(void) |
| 1163 | { |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1164 | rc80211_pid_exit(); |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1165 | rc80211_minstrel_ht_exit(); |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1166 | rc80211_minstrel_exit(); |
Johannes Berg | ac71c69 | 2007-10-28 14:17:44 +0100 | [diff] [blame] | 1167 | |
Luis Carlos Cobo | f7a9214 | 2008-02-23 15:17:18 +0100 | [diff] [blame] | 1168 | if (mesh_allocated) |
| 1169 | ieee80211s_stop(); |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 1170 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1171 | ieee80211_iface_exit(); |
Johannes Berg | d07c7cf | 2011-05-14 11:04:51 +0200 | [diff] [blame] | 1172 | |
| 1173 | rcu_barrier(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1174 | } |
| 1175 | |
| 1176 | |
Johannes Berg | ca9938f | 2007-09-11 12:50:32 +0200 | [diff] [blame] | 1177 | subsys_initcall(ieee80211_init); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1178 | module_exit(ieee80211_exit); |
| 1179 | |
| 1180 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); |
| 1181 | MODULE_LICENSE("GPL"); |