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> |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 22 | #include <linux/pm_qos_params.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 | f38fd12 | 2009-12-01 18:29:42 +0100 | [diff] [blame] | 36 | |
Johannes Berg | 8ba0537 | 2011-02-16 08:46:58 +0100 | [diff] [blame] | 37 | static bool ieee80211_disable_40mhz_24ghz; |
Johannes Berg | f38fd12 | 2009-12-01 18:29:42 +0100 | [diff] [blame] | 38 | module_param(ieee80211_disable_40mhz_24ghz, bool, 0644); |
| 39 | MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz, |
| 40 | "Disable 40MHz support in the 2.4GHz band"); |
| 41 | |
Johannes Berg | 681c4d0 | 2011-01-12 13:40:33 +0100 | [diff] [blame] | 42 | static struct lock_class_key ieee80211_rx_skb_queue_class; |
| 43 | |
Johannes Berg | 0d143fe | 2008-09-11 00:01:59 +0200 | [diff] [blame] | 44 | void ieee80211_configure_filter(struct ieee80211_local *local) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 45 | { |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 46 | u64 mc; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 47 | unsigned int changed_flags; |
| 48 | unsigned int new_flags = 0; |
| 49 | |
Johannes Berg | 5391899 | 2007-09-26 15:19:47 +0200 | [diff] [blame] | 50 | if (atomic_read(&local->iff_promiscs)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 51 | new_flags |= FIF_PROMISC_IN_BSS; |
| 52 | |
Johannes Berg | 5391899 | 2007-09-26 15:19:47 +0200 | [diff] [blame] | 53 | if (atomic_read(&local->iff_allmultis)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 54 | new_flags |= FIF_ALLMULTI; |
| 55 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 56 | if (local->monitors || local->scanning) |
Michael Wu | 8cc9a73 | 2008-01-31 19:48:23 +0100 | [diff] [blame] | 57 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
| 58 | |
Johannes Berg | 7be5086 | 2010-10-13 12:06:24 +0200 | [diff] [blame] | 59 | if (local->fif_probe_req || local->probe_req_reg) |
| 60 | new_flags |= FIF_PROBE_REQ; |
| 61 | |
Michael Wu | 8cc9a73 | 2008-01-31 19:48:23 +0100 | [diff] [blame] | 62 | if (local->fif_fcsfail) |
| 63 | new_flags |= FIF_FCSFAIL; |
| 64 | |
| 65 | if (local->fif_plcpfail) |
| 66 | new_flags |= FIF_PLCPFAIL; |
| 67 | |
| 68 | if (local->fif_control) |
| 69 | new_flags |= FIF_CONTROL; |
| 70 | |
| 71 | if (local->fif_other_bss) |
| 72 | new_flags |= FIF_OTHER_BSS; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 73 | |
Igor Perminov | e3b90ca | 2009-08-04 16:48:51 +0400 | [diff] [blame] | 74 | if (local->fif_pspoll) |
| 75 | new_flags |= FIF_PSPOLL; |
| 76 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 77 | spin_lock_bh(&local->filter_lock); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 78 | changed_flags = local->filter_flags ^ new_flags; |
| 79 | |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 80 | mc = drv_prepare_multicast(local, &local->mc_list); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 81 | spin_unlock_bh(&local->filter_lock); |
| 82 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 83 | /* be a bit nasty */ |
| 84 | new_flags |= (1<<31); |
| 85 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 86 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 87 | |
| 88 | WARN_ON(new_flags & (1<<31)); |
| 89 | |
| 90 | local->filter_flags = new_flags & ~(1<<31); |
| 91 | } |
| 92 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 93 | static void ieee80211_reconfig_filter(struct work_struct *work) |
| 94 | { |
| 95 | struct ieee80211_local *local = |
| 96 | container_of(work, struct ieee80211_local, reconfig_filter); |
| 97 | |
| 98 | ieee80211_configure_filter(local); |
| 99 | } |
| 100 | |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 101 | /* |
| 102 | * Returns true if we are logically configured to be on |
| 103 | * the operating channel AND the hardware-conf is currently |
| 104 | * configured on the operating channel. Compares channel-type |
| 105 | * as well. |
| 106 | */ |
| 107 | bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local) |
| 108 | { |
| 109 | struct ieee80211_channel *chan, *scan_chan; |
| 110 | enum nl80211_channel_type channel_type; |
| 111 | |
| 112 | /* This logic needs to match logic in ieee80211_hw_config */ |
| 113 | if (local->scan_channel) { |
| 114 | chan = local->scan_channel; |
Ben Greear | 4f2e9d9 | 2011-02-07 13:44:35 -0800 | [diff] [blame] | 115 | /* If scanning on oper channel, use whatever channel-type |
| 116 | * is currently in use. |
| 117 | */ |
| 118 | if (chan == local->oper_channel) |
| 119 | channel_type = local->_oper_channel_type; |
| 120 | else |
| 121 | channel_type = NL80211_CHAN_NO_HT; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 122 | } else if (local->tmp_channel) { |
| 123 | chan = scan_chan = local->tmp_channel; |
| 124 | channel_type = local->tmp_channel_type; |
| 125 | } else { |
| 126 | chan = local->oper_channel; |
| 127 | channel_type = local->_oper_channel_type; |
| 128 | } |
| 129 | |
| 130 | if (chan != local->oper_channel || |
| 131 | channel_type != local->_oper_channel_type) |
| 132 | return false; |
| 133 | |
| 134 | /* Check current hardware-config against oper_channel. */ |
| 135 | if ((local->oper_channel != local->hw.conf.channel) || |
| 136 | (local->_oper_channel_type != local->hw.conf.channel_type)) |
| 137 | return false; |
| 138 | |
| 139 | return true; |
| 140 | } |
| 141 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 142 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 143 | { |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 144 | struct ieee80211_channel *chan, *scan_chan; |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 145 | int ret = 0; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 146 | int power; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 147 | enum nl80211_channel_type channel_type; |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 148 | u32 offchannel_flag; |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 149 | |
Johannes Berg | cb121ba | 2008-10-14 16:38:55 +0200 | [diff] [blame] | 150 | might_sleep(); |
| 151 | |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 152 | scan_chan = local->scan_channel; |
| 153 | |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 154 | /* If this off-channel logic ever changes, ieee80211_on_oper_channel |
| 155 | * may need to change as well. |
| 156 | */ |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 157 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 158 | if (scan_chan) { |
| 159 | chan = scan_chan; |
Ben Greear | 4f2e9d9 | 2011-02-07 13:44:35 -0800 | [diff] [blame] | 160 | /* If scanning on oper channel, use whatever channel-type |
| 161 | * is currently in use. |
| 162 | */ |
| 163 | if (chan == local->oper_channel) |
| 164 | channel_type = local->_oper_channel_type; |
| 165 | else |
| 166 | channel_type = NL80211_CHAN_NO_HT; |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 167 | } else if (local->tmp_channel) { |
Johannes Berg | b8bc4b0 | 2009-12-23 13:15:42 +0100 | [diff] [blame] | 168 | chan = scan_chan = local->tmp_channel; |
| 169 | channel_type = local->tmp_channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 170 | } else { |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 171 | chan = local->oper_channel; |
Johannes Berg | 0aaffa9 | 2010-05-05 15:28:27 +0200 | [diff] [blame] | 172 | channel_type = local->_oper_channel_type; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 173 | } |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 174 | |
| 175 | if (chan != local->oper_channel || |
| 176 | channel_type != local->_oper_channel_type) |
| 177 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
| 178 | else |
| 179 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; |
| 180 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 181 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 182 | |
Felix Fietkau | ffd2778 | 2010-07-29 17:36:43 +0200 | [diff] [blame] | 183 | if (offchannel_flag || chan != local->hw.conf.channel || |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 184 | channel_type != local->hw.conf.channel_type) { |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 185 | local->hw.conf.channel = chan; |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 186 | local->hw.conf.channel_type = channel_type; |
Jouni Malinen | 72bdcf3 | 2008-11-26 16:15:24 +0200 | [diff] [blame] | 187 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
| 188 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 189 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 190 | if (!conf_is_ht(&local->hw.conf)) { |
| 191 | /* |
| 192 | * mac80211.h documents that this is only valid |
| 193 | * when the channel is set to an HT type, and |
| 194 | * that otherwise STATIC is used. |
| 195 | */ |
| 196 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; |
| 197 | } else if (local->hw.conf.smps_mode != local->smps_mode) { |
| 198 | local->hw.conf.smps_mode = local->smps_mode; |
| 199 | changed |= IEEE80211_CONF_CHANGE_SMPS; |
| 200 | } |
| 201 | |
Ben Greear | 59bdf3b | 2011-02-07 13:44:38 -0800 | [diff] [blame] | 202 | if ((local->scanning & SCAN_SW_SCANNING) || |
| 203 | (local->scanning & SCAN_HW_SCANNING)) |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 204 | power = chan->max_power; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 205 | else |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 206 | power = local->power_constr_level ? |
| 207 | (chan->max_power - local->power_constr_level) : |
| 208 | chan->max_power; |
| 209 | |
Johannes Berg | 47afbaf | 2009-04-07 15:22:28 +0200 | [diff] [blame] | 210 | if (local->user_power_level >= 0) |
Vasanthakumar Thiagarajan | a8302de | 2009-01-09 18:14:15 +0530 | [diff] [blame] | 211 | power = min(power, local->user_power_level); |
| 212 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 213 | if (local->hw.conf.power_level != power) { |
| 214 | changed |= IEEE80211_CONF_CHANGE_POWER; |
| 215 | local->hw.conf.power_level = power; |
| 216 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 217 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 218 | if (changed && local->open_count) { |
Johannes Berg | 2448798 | 2009-04-23 18:52:52 +0200 | [diff] [blame] | 219 | ret = drv_config(local, changed); |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 220 | /* |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 221 | * Goal: |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 222 | * HW reconfiguration should never fail, the driver has told |
| 223 | * 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] | 224 | * |
| 225 | * Current status: |
| 226 | * rfkill is not integrated with mac80211 and a |
| 227 | * configuration command can thus fail if hardware rfkill |
| 228 | * is enabled |
| 229 | * |
| 230 | * FIXME: integrate rfkill with mac80211 and then add this |
| 231 | * WARN_ON() back |
| 232 | * |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 233 | */ |
Reinette Chatre | 447107f | 2008-12-04 14:49:08 -0800 | [diff] [blame] | 234 | /* WARN_ON(ret); */ |
Johannes Berg | d73782f | 2008-10-07 12:04:34 +0200 | [diff] [blame] | 235 | } |
Johannes Berg | b2c258f | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 236 | |
| 237 | return ret; |
| 238 | } |
| 239 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 240 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| 241 | u32 changed) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 242 | { |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 243 | struct ieee80211_local *local = sdata->local; |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 244 | static const u8 zero[ETH_ALEN] = { 0 }; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 245 | |
| 246 | if (!changed) |
| 247 | return; |
| 248 | |
Johannes Berg | 9cef873 | 2009-05-14 13:10:14 +0200 | [diff] [blame] | 249 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
| 250 | /* |
| 251 | * While not associated, claim a BSSID of all-zeroes |
| 252 | * so that drivers don't do any weird things with the |
| 253 | * BSSID at that time. |
| 254 | */ |
| 255 | if (sdata->vif.bss_conf.assoc) |
| 256 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; |
| 257 | else |
| 258 | sdata->vif.bss_conf.bssid = zero; |
| 259 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 260 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
| 261 | else if (sdata->vif.type == NL80211_IFTYPE_AP) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 262 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 263 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
| 264 | sdata->vif.bss_conf.bssid = NULL; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 265 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 266 | sdata->vif.bss_conf.bssid = zero; |
| 267 | } else { |
| 268 | WARN_ON(1); |
| 269 | return; |
| 270 | } |
| 271 | |
| 272 | switch (sdata->vif.type) { |
| 273 | case NL80211_IFTYPE_AP: |
| 274 | case NL80211_IFTYPE_ADHOC: |
Bill Jordan | 1be7fe8 | 2010-10-01 11:20:41 -0400 | [diff] [blame] | 275 | case NL80211_IFTYPE_WDS: |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 276 | case NL80211_IFTYPE_MESH_POINT: |
| 277 | break; |
| 278 | default: |
| 279 | /* do not warn to simplify caller in scan.c */ |
| 280 | changed &= ~BSS_CHANGED_BEACON_ENABLED; |
| 281 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) |
| 282 | return; |
| 283 | break; |
| 284 | } |
| 285 | |
| 286 | if (changed & BSS_CHANGED_BEACON_ENABLED) { |
Johannes Berg | 9607e6b | 2009-12-23 13:15:31 +0100 | [diff] [blame] | 287 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
Ben Greear | b23b025 | 2011-02-04 11:54:17 -0800 | [diff] [blame] | 288 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 289 | sdata->vif.bss_conf.enable_beacon = false; |
| 290 | } else { |
| 291 | /* |
| 292 | * Beacon should be enabled, but AP mode must |
| 293 | * check whether there is a beacon configured. |
| 294 | */ |
| 295 | switch (sdata->vif.type) { |
| 296 | case NL80211_IFTYPE_AP: |
| 297 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 298 | !!sdata->u.ap.beacon; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 299 | break; |
| 300 | case NL80211_IFTYPE_ADHOC: |
| 301 | sdata->vif.bss_conf.enable_beacon = |
Johannes Berg | 0379185 | 2010-04-06 11:18:42 +0200 | [diff] [blame] | 302 | !!sdata->u.ibss.presp; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 303 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 304 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 305 | case NL80211_IFTYPE_MESH_POINT: |
Johannes Berg | 29cbe68 | 2010-12-03 09:20:44 +0100 | [diff] [blame] | 306 | sdata->vif.bss_conf.enable_beacon = |
| 307 | !!sdata->u.mesh.mesh_id_len; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 308 | break; |
Javier Cardona | 7659a19 | 2010-12-07 10:41:47 -0800 | [diff] [blame] | 309 | #endif |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 310 | default: |
| 311 | /* not reached */ |
| 312 | WARN_ON(1); |
| 313 | break; |
| 314 | } |
| 315 | } |
| 316 | } |
| 317 | |
Johannes Berg | 12375ef | 2009-11-25 20:30:31 +0100 | [diff] [blame] | 318 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 319 | } |
| 320 | |
Jasper Bryant-Greene | f698d85 | 2008-08-03 12:04:37 +1200 | [diff] [blame] | 321 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 322 | { |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 323 | sdata->vif.bss_conf.use_cts_prot = false; |
| 324 | sdata->vif.bss_conf.use_short_preamble = false; |
| 325 | sdata->vif.bss_conf.use_short_slot = false; |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 326 | return BSS_CHANGED_ERP_CTS_PROT | |
| 327 | BSS_CHANGED_ERP_PREAMBLE | |
| 328 | BSS_CHANGED_ERP_SLOT; |
Daniel Drake | d9430a3 | 2007-07-27 15:43:24 +0200 | [diff] [blame] | 329 | } |
| 330 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 331 | static void ieee80211_tasklet_handler(unsigned long data) |
| 332 | { |
| 333 | struct ieee80211_local *local = (struct ieee80211_local *) data; |
| 334 | struct sk_buff *skb; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 335 | |
| 336 | while ((skb = skb_dequeue(&local->skb_queue)) || |
| 337 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { |
| 338 | switch (skb->pkt_type) { |
| 339 | case IEEE80211_RX_MSG: |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 340 | /* Clear skb->pkt_type in order to not confuse kernel |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 341 | * netstack. */ |
| 342 | skb->pkt_type = 0; |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 343 | ieee80211_rx(local_to_hw(local), skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 344 | break; |
| 345 | case IEEE80211_TX_STATUS_MSG: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 346 | skb->pkt_type = 0; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 347 | ieee80211_tx_status(local_to_hw(local), skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 348 | break; |
Johannes Berg | f4ea83d | 2008-06-30 15:10:46 +0200 | [diff] [blame] | 349 | default: |
Larry Finger | 5e3f308 | 2008-12-17 14:26:59 -0600 | [diff] [blame] | 350 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
| 351 | skb->pkt_type); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 352 | dev_kfree_skb(skb); |
| 353 | break; |
| 354 | } |
| 355 | } |
| 356 | } |
| 357 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 358 | static void ieee80211_restart_work(struct work_struct *work) |
| 359 | { |
| 360 | struct ieee80211_local *local = |
| 361 | container_of(work, struct ieee80211_local, restart_work); |
| 362 | |
Stanislaw Gruszka | bc86863 | 2010-10-01 14:05:27 +0200 | [diff] [blame] | 363 | /* wait for scan work complete */ |
| 364 | flush_workqueue(local->workqueue); |
| 365 | |
| 366 | mutex_lock(&local->mtx); |
| 367 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
| 368 | "%s called with hardware scan in progress\n", __func__); |
| 369 | mutex_unlock(&local->mtx); |
| 370 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 371 | rtnl_lock(); |
Stanislaw Gruszka | 4136c42 | 2010-10-06 11:22:10 +0200 | [diff] [blame] | 372 | ieee80211_scan_cancel(local); |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 373 | ieee80211_reconfig(local); |
| 374 | rtnl_unlock(); |
| 375 | } |
| 376 | |
| 377 | void ieee80211_restart_hw(struct ieee80211_hw *hw) |
| 378 | { |
| 379 | struct ieee80211_local *local = hw_to_local(hw); |
| 380 | |
Johannes Berg | b5878a2 | 2010-04-07 16:48:40 +0200 | [diff] [blame] | 381 | trace_api_restart_hw(local); |
| 382 | |
Michael Buesch | b196d03 | 2011-03-07 13:09:12 +0100 | [diff] [blame^] | 383 | wiphy_info(hw->wiphy, |
| 384 | "Hardware restart was requested\n"); |
| 385 | |
John W. Linville | 18145c6 | 2010-08-30 15:12:02 -0400 | [diff] [blame] | 386 | /* use this reason, ieee80211_reconfig will unblock it */ |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 387 | ieee80211_stop_queues_by_reason(hw, |
| 388 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); |
| 389 | |
| 390 | schedule_work(&local->restart_work); |
| 391 | } |
| 392 | EXPORT_SYMBOL(ieee80211_restart_hw); |
| 393 | |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 394 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
| 395 | { |
| 396 | struct ieee80211_local *local = |
| 397 | container_of(work, struct ieee80211_local, recalc_smps); |
| 398 | |
| 399 | mutex_lock(&local->iflist_mtx); |
Johannes Berg | 025e6be | 2010-10-05 10:41:47 +0200 | [diff] [blame] | 400 | ieee80211_recalc_smps(local); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 401 | mutex_unlock(&local->iflist_mtx); |
| 402 | } |
| 403 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 404 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 405 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
| 406 | unsigned long data, void *arg) |
| 407 | { |
| 408 | struct in_ifaddr *ifa = arg; |
| 409 | struct ieee80211_local *local = |
| 410 | container_of(nb, struct ieee80211_local, |
| 411 | ifa_notifier); |
| 412 | struct net_device *ndev = ifa->ifa_dev->dev; |
| 413 | struct wireless_dev *wdev = ndev->ieee80211_ptr; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 414 | struct in_device *idev; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 415 | struct ieee80211_sub_if_data *sdata; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 416 | struct ieee80211_bss_conf *bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 417 | struct ieee80211_if_managed *ifmgd; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 418 | int c = 0; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 419 | |
| 420 | /* Make sure it's our interface that got changed */ |
| 421 | if (!wdev) |
| 422 | return NOTIFY_DONE; |
| 423 | |
| 424 | if (wdev->wiphy != local->hw.wiphy) |
| 425 | return NOTIFY_DONE; |
| 426 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 427 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 428 | bss_conf = &sdata->vif.bss_conf; |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 429 | |
Johannes Berg | 26a5845 | 2010-08-27 12:35:55 +0200 | [diff] [blame] | 430 | if (!ieee80211_sdata_running(sdata)) |
| 431 | return NOTIFY_DONE; |
| 432 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 433 | /* ARP filtering is only supported in managed mode */ |
| 434 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 435 | return NOTIFY_DONE; |
| 436 | |
Eric Dumazet | 95ae6b2 | 2010-09-15 04:04:31 +0000 | [diff] [blame] | 437 | idev = __in_dev_get_rtnl(sdata->dev); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 438 | if (!idev) |
| 439 | return NOTIFY_DONE; |
| 440 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 441 | ifmgd = &sdata->u.mgd; |
| 442 | mutex_lock(&ifmgd->mtx); |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 443 | |
| 444 | /* Copy the addresses to the bss_conf list */ |
| 445 | ifa = idev->ifa_list; |
| 446 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { |
| 447 | bss_conf->arp_addr_list[c] = ifa->ifa_address; |
| 448 | ifa = ifa->ifa_next; |
| 449 | c++; |
| 450 | } |
| 451 | |
| 452 | /* If not all addresses fit the list, disable filtering */ |
| 453 | if (ifa) { |
| 454 | sdata->arp_filter_state = false; |
| 455 | c = 0; |
| 456 | } else { |
| 457 | sdata->arp_filter_state = true; |
| 458 | } |
| 459 | bss_conf->arp_addr_cnt = c; |
| 460 | |
| 461 | /* Configure driver only if associated */ |
| 462 | if (ifmgd->associated) { |
| 463 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; |
| 464 | ieee80211_bss_info_change_notify(sdata, |
| 465 | BSS_CHANGED_ARP_FILTER); |
| 466 | } |
| 467 | |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 468 | mutex_unlock(&ifmgd->mtx); |
| 469 | |
| 470 | return NOTIFY_DONE; |
| 471 | } |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 472 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 473 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 474 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
| 475 | { |
| 476 | struct ieee80211_local *local = |
| 477 | container_of(napi, struct ieee80211_local, napi); |
| 478 | |
| 479 | return local->ops->napi_poll(&local->hw, budget); |
| 480 | } |
| 481 | |
| 482 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) |
| 483 | { |
| 484 | struct ieee80211_local *local = hw_to_local(hw); |
| 485 | |
| 486 | napi_schedule(&local->napi); |
| 487 | } |
| 488 | EXPORT_SYMBOL(ieee80211_napi_schedule); |
| 489 | |
| 490 | void ieee80211_napi_complete(struct ieee80211_hw *hw) |
| 491 | { |
| 492 | struct ieee80211_local *local = hw_to_local(hw); |
| 493 | |
| 494 | napi_complete(&local->napi); |
| 495 | } |
| 496 | EXPORT_SYMBOL(ieee80211_napi_complete); |
| 497 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 498 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
| 499 | static const struct ieee80211_txrx_stypes |
| 500 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { |
| 501 | [NL80211_IFTYPE_ADHOC] = { |
| 502 | .tx = 0xffff, |
| 503 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), |
| 504 | }, |
| 505 | [NL80211_IFTYPE_STATION] = { |
| 506 | .tx = 0xffff, |
| 507 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 508 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 509 | }, |
| 510 | [NL80211_IFTYPE_AP] = { |
| 511 | .tx = 0xffff, |
| 512 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 513 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 514 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 515 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 516 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 517 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 518 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 519 | }, |
| 520 | [NL80211_IFTYPE_AP_VLAN] = { |
| 521 | /* copy AP */ |
| 522 | .tx = 0xffff, |
| 523 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 524 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 525 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 526 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 527 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 528 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 529 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 530 | }, |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 531 | [NL80211_IFTYPE_P2P_CLIENT] = { |
| 532 | .tx = 0xffff, |
| 533 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| 534 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| 535 | }, |
| 536 | [NL80211_IFTYPE_P2P_GO] = { |
| 537 | .tx = 0xffff, |
| 538 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | |
| 539 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | |
| 540 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | |
| 541 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
| 542 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
| 543 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
| 544 | BIT(IEEE80211_STYPE_ACTION >> 4), |
| 545 | }, |
Javier Cardona | c7108a7 | 2010-12-16 17:37:50 -0800 | [diff] [blame] | 546 | [NL80211_IFTYPE_MESH_POINT] = { |
| 547 | .tx = 0xffff, |
| 548 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), |
| 549 | }, |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 550 | }; |
| 551 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 552 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 553 | const struct ieee80211_ops *ops) |
| 554 | { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 555 | struct ieee80211_local *local; |
Johannes Berg | 96f5e66 | 2009-02-12 00:51:53 +0100 | [diff] [blame] | 556 | int priv_size, i; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 557 | struct wiphy *wiphy; |
| 558 | |
| 559 | /* Ensure 32-byte alignment of our private data and hw private data. |
| 560 | * We use the wiphy priv data for both our ieee80211_local and for |
| 561 | * the driver's private data |
| 562 | * |
| 563 | * In memory it'll be like this: |
| 564 | * |
| 565 | * +-------------------------+ |
| 566 | * | struct wiphy | |
| 567 | * +-------------------------+ |
| 568 | * | struct ieee80211_local | |
| 569 | * +-------------------------+ |
| 570 | * | driver's private data | |
| 571 | * +-------------------------+ |
| 572 | * |
| 573 | */ |
Eric Dumazet | 1ce8e7b | 2009-05-27 04:42:37 +0000 | [diff] [blame] | 574 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 575 | |
| 576 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); |
| 577 | |
| 578 | if (!wiphy) |
| 579 | return NULL; |
| 580 | |
Johannes Berg | 2e161f7 | 2010-08-12 15:38:38 +0200 | [diff] [blame] | 581 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
| 582 | |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 583 | wiphy->privid = mac80211_wiphy_privid; |
| 584 | |
Johannes Berg | 9bc383d | 2009-11-19 11:55:19 +0100 | [diff] [blame] | 585 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
| 586 | WIPHY_FLAG_4ADDR_AP | |
Johannes Berg | f7e0104 | 2010-12-09 19:49:02 +0100 | [diff] [blame] | 587 | WIPHY_FLAG_4ADDR_STATION | |
| 588 | WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS; |
Johannes Berg | 207aba6 | 2010-12-10 17:10:44 +0100 | [diff] [blame] | 589 | |
| 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 | |
Johannes Berg | 4480f15c | 2007-07-10 19:32:10 +0200 | [diff] [blame] | 601 | BUG_ON(!ops->tx); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 602 | BUG_ON(!ops->start); |
| 603 | BUG_ON(!ops->stop); |
Johannes Berg | 4480f15c | 2007-07-10 19:32:10 +0200 | [diff] [blame] | 604 | BUG_ON(!ops->config); |
| 605 | BUG_ON(!ops->add_interface); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 606 | BUG_ON(!ops->remove_interface); |
| 607 | BUG_ON(!ops->configure_filter); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 608 | local->ops = ops; |
| 609 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 610 | /* set up some defaults */ |
| 611 | local->hw.queues = 1; |
| 612 | local->hw.max_rates = 1; |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 613 | local->hw.max_report_rates = 0; |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 614 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 615 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| 616 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
Johannes Berg | c428c89 | 2009-04-29 00:28:18 +0200 | [diff] [blame] | 617 | local->user_power_level = -1; |
Kalle Valo | 50ae0cf | 2010-01-12 10:42:39 +0200 | [diff] [blame] | 618 | local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
| 619 | local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 620 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 621 | INIT_LIST_HEAD(&local->interfaces); |
YOSHIFUJI Hideaki / 吉藤英明 | 2f787b0 | 2010-04-04 17:59:30 +0000 | [diff] [blame] | 622 | |
| 623 | __hw_addr_init(&local->mc_list); |
| 624 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 625 | mutex_init(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 626 | mutex_init(&local->mtx); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 627 | |
Johannes Berg | ad0e2b5 | 2010-06-01 10:19:19 +0200 | [diff] [blame] | 628 | mutex_init(&local->key_mtx); |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 629 | spin_lock_init(&local->filter_lock); |
Kalle Valo | ce7c911 | 2008-12-18 23:35:20 +0200 | [diff] [blame] | 630 | spin_lock_init(&local->queue_stop_reason_lock); |
| 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 | af6b637 | 2009-12-23 13:15:35 +0100 | [diff] [blame] | 644 | ieee80211_work_init(local); |
| 645 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 646 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
| 647 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 648 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 649 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
| 650 | local->smps_mode = IEEE80211_SMPS_OFF; |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 651 | |
Kalle Valo | 520eb82 | 2008-12-18 23:35:27 +0200 | [diff] [blame] | 652 | INIT_WORK(&local->dynamic_ps_enable_work, |
| 653 | ieee80211_dynamic_ps_enable_work); |
| 654 | INIT_WORK(&local->dynamic_ps_disable_work, |
| 655 | ieee80211_dynamic_ps_disable_work); |
| 656 | setup_timer(&local->dynamic_ps_timer, |
| 657 | ieee80211_dynamic_ps_timer, (unsigned long) local); |
| 658 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 659 | sta_info_init(local); |
| 660 | |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 661 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
Johannes Berg | 2a577d9 | 2009-03-23 17:28:37 +0100 | [diff] [blame] | 662 | skb_queue_head_init(&local->pending[i]); |
Johannes Berg | a6a67db | 2010-06-10 10:21:41 +0200 | [diff] [blame] | 663 | atomic_set(&local->agg_queue_stop[i], 0); |
| 664 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 665 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
| 666 | (unsigned long)local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 667 | |
| 668 | tasklet_init(&local->tasklet, |
| 669 | ieee80211_tasklet_handler, |
| 670 | (unsigned long) local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 671 | |
| 672 | skb_queue_head_init(&local->skb_queue); |
| 673 | skb_queue_head_init(&local->skb_queue_unreliable); |
| 674 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 675 | /* init dummy netdev for use w/ NAPI */ |
| 676 | init_dummy_netdev(&local->napi_dev); |
| 677 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 678 | ieee80211_led_names(local); |
| 679 | |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 680 | ieee80211_hw_roc_setup(local); |
| 681 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 682 | return local_to_hw(local); |
| 683 | } |
| 684 | EXPORT_SYMBOL(ieee80211_alloc_hw); |
| 685 | |
| 686 | int ieee80211_register_hw(struct ieee80211_hw *hw) |
| 687 | { |
| 688 | struct ieee80211_local *local = hw_to_local(hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 689 | int result; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 690 | enum ieee80211_band band; |
Johannes Berg | be4a4b6 | 2010-05-03 08:49:48 +0200 | [diff] [blame] | 691 | int channels, max_bitrates; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 692 | bool supp_ht; |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 693 | static const u32 cipher_suites[] = { |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 694 | /* keep WEP first, it may be removed below */ |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 695 | WLAN_CIPHER_SUITE_WEP40, |
| 696 | WLAN_CIPHER_SUITE_WEP104, |
| 697 | WLAN_CIPHER_SUITE_TKIP, |
| 698 | WLAN_CIPHER_SUITE_CCMP, |
| 699 | |
| 700 | /* keep last -- depends on hw flags! */ |
| 701 | WLAN_CIPHER_SUITE_AES_CMAC |
| 702 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 703 | |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 704 | if (hw->max_report_rates == 0) |
| 705 | hw->max_report_rates = hw->max_rates; |
| 706 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 707 | /* |
| 708 | * generic code guarantees at least one band, |
| 709 | * set this very early because much code assumes |
| 710 | * that hw.conf.channel is assigned |
| 711 | */ |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 712 | channels = 0; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 713 | max_bitrates = 0; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 714 | supp_ht = false; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 715 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 716 | struct ieee80211_supported_band *sband; |
| 717 | |
| 718 | sband = local->hw.wiphy->bands[band]; |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 719 | if (!sband) |
| 720 | continue; |
| 721 | if (!local->oper_channel) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 722 | /* init channel we're on */ |
| 723 | local->hw.conf.channel = |
Johannes Berg | 58905ca | 2009-05-07 14:23:01 +0200 | [diff] [blame] | 724 | local->oper_channel = &sband->channels[0]; |
| 725 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 726 | } |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 727 | channels += sband->n_channels; |
| 728 | |
Johannes Berg | 8ba0537 | 2011-02-16 08:46:58 +0100 | [diff] [blame] | 729 | /* |
| 730 | * Since ieee80211_disable_40mhz_24ghz is global, we can |
| 731 | * modify the sband's ht data even if the driver uses a |
| 732 | * global structure for that. |
| 733 | */ |
| 734 | if (ieee80211_disable_40mhz_24ghz && |
| 735 | band == IEEE80211_BAND_2GHZ && |
| 736 | sband->ht_cap.ht_supported) { |
| 737 | sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| 738 | sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; |
| 739 | } |
| 740 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 741 | if (max_bitrates < sband->n_bitrates) |
| 742 | max_bitrates = sband->n_bitrates; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 743 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 744 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 745 | |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 746 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
| 747 | sizeof(void *) * channels, GFP_KERNEL); |
| 748 | if (!local->int_scan_req) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 749 | return -ENOMEM; |
| 750 | |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 751 | /* if low-level driver supports AP, we also support VLAN */ |
| 752 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) |
| 753 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
| 754 | |
| 755 | /* mac80211 always supports monitor */ |
| 756 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
| 757 | |
Johannes Berg | 5eb5a52 | 2010-08-25 14:34:01 +0200 | [diff] [blame] | 758 | #ifndef CONFIG_MAC80211_MESH |
| 759 | /* mesh depends on Kconfig, but drivers should set it if they want */ |
| 760 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); |
| 761 | #endif |
| 762 | |
Johannes Berg | a621fa4 | 2010-08-27 14:26:54 +0300 | [diff] [blame] | 763 | /* mac80211 supports control port protocol changing */ |
| 764 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; |
| 765 | |
Johannes Berg | 77965c9 | 2009-02-18 18:45:06 +0100 | [diff] [blame] | 766 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
| 767 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| 768 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) |
| 769 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
| 770 | |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 771 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
| 772 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), |
| 773 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); |
| 774 | |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 775 | /* |
| 776 | * Calculate scan IE length -- we need this to alloc |
| 777 | * memory and to subtract from the driver limit. It |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 778 | * includes the DS Params, (extended) supported rates, and HT |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 779 | * information -- SSID is the driver's responsibility. |
| 780 | */ |
Jouni Malinen | dc9f48c | 2010-10-27 13:40:33 +0300 | [diff] [blame] | 781 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
| 782 | 3 /* DS Params */; |
Johannes Berg | 5ef2d41 | 2009-03-31 12:12:07 +0200 | [diff] [blame] | 783 | if (supp_ht) |
| 784 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 785 | |
| 786 | if (!local->ops->hw_scan) { |
| 787 | /* For hw_scan, driver needs to set these up. */ |
| 788 | local->hw.wiphy->max_scan_ssids = 4; |
| 789 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; |
| 790 | } |
| 791 | |
| 792 | /* |
| 793 | * If the driver supports any scan IEs, then assume the |
| 794 | * limit includes the IEs mac80211 will add, otherwise |
| 795 | * leave it at zero and let the driver sort it out; we |
| 796 | * still pass our IEs to the driver but userspace will |
| 797 | * not be allowed to in that case. |
| 798 | */ |
| 799 | if (local->hw.wiphy->max_scan_ie_len) |
| 800 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; |
| 801 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 802 | /* Set up cipher suites unless driver already did */ |
| 803 | if (!local->hw.wiphy->cipher_suites) { |
| 804 | local->hw.wiphy->cipher_suites = cipher_suites; |
| 805 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| 806 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) |
| 807 | local->hw.wiphy->n_cipher_suites--; |
| 808 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 809 | 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] | 810 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
| 811 | local->hw.wiphy->cipher_suites += 2; |
| 812 | local->hw.wiphy->n_cipher_suites -= 2; |
| 813 | } else { |
| 814 | u32 *suites; |
| 815 | int r, w = 0; |
| 816 | |
| 817 | /* Filter out WEP */ |
| 818 | |
| 819 | suites = kmemdup( |
| 820 | local->hw.wiphy->cipher_suites, |
| 821 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, |
| 822 | GFP_KERNEL); |
| 823 | if (!suites) |
| 824 | return -ENOMEM; |
| 825 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
| 826 | u32 suite = local->hw.wiphy->cipher_suites[r]; |
| 827 | if (suite == WLAN_CIPHER_SUITE_WEP40 || |
| 828 | suite == WLAN_CIPHER_SUITE_WEP104) |
| 829 | continue; |
| 830 | suites[w++] = suite; |
| 831 | } |
| 832 | local->hw.wiphy->cipher_suites = suites; |
| 833 | local->hw.wiphy->n_cipher_suites = w; |
| 834 | local->wiphy_ciphers_allocated = true; |
| 835 | } |
Johannes Berg | 5daa8a8 | 2010-08-10 09:46:41 +0200 | [diff] [blame] | 836 | } |
Johannes Berg | 25e47c1 | 2009-04-02 20:14:06 +0200 | [diff] [blame] | 837 | |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 838 | if (!local->ops->remain_on_channel) |
| 839 | local->hw.wiphy->max_remain_on_channel_duration = 5000; |
Johannes Berg | a293911 | 2010-12-14 17:54:28 +0100 | [diff] [blame] | 840 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 841 | result = wiphy_register(local->hw.wiphy); |
| 842 | if (result < 0) |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 843 | goto fail_wiphy_register; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 844 | |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 845 | /* |
| 846 | * We use the number of queues for feature tests (QoS, HT) internally |
| 847 | * so restrict them appropriately. |
| 848 | */ |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 849 | if (hw->queues > IEEE80211_MAX_QUEUES) |
| 850 | hw->queues = IEEE80211_MAX_QUEUES; |
Johannes Berg | e253008 | 2008-05-17 00:57:14 +0200 | [diff] [blame] | 851 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 852 | local->workqueue = |
Tejun Heo | 99b88a0 | 2010-10-15 17:35:28 +0200 | [diff] [blame] | 853 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 854 | if (!local->workqueue) { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 855 | result = -ENOMEM; |
| 856 | goto fail_workqueue; |
| 857 | } |
| 858 | |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 859 | /* |
| 860 | * The hardware needs headroom for sending the frame, |
| 861 | * and we need some headroom for passing the frame to monitor |
| 862 | * interfaces, but never both at the same time. |
| 863 | */ |
Gertjan van Wingerde | d24deb2 | 2009-12-04 23:46:54 +0100 | [diff] [blame] | 864 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
| 865 | sizeof(struct ieee80211_tx_status_rtap_hdr)); |
Jiri Benc | 33ccad3 | 2007-07-18 17:10:44 +0200 | [diff] [blame] | 866 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
| 867 | sizeof(struct ieee80211_tx_status_rtap_hdr)); |
Johannes Berg | b306f45 | 2007-07-10 19:32:08 +0200 | [diff] [blame] | 868 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 869 | debugfs_hw_add(local); |
| 870 | |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 871 | /* |
| 872 | * if the driver doesn't specify a max listen interval we |
| 873 | * use 5 which should be a safe default |
| 874 | */ |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 875 | if (local->hw.max_listen_interval == 0) |
Helmut Schaa | b446918 | 2010-02-24 14:19:37 +0100 | [diff] [blame] | 876 | local->hw.max_listen_interval = 5; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 877 | |
| 878 | local->hw.conf.listen_interval = local->hw.max_listen_interval; |
| 879 | |
Juuso Oikarinen | ff61638 | 2010-06-09 09:51:52 +0300 | [diff] [blame] | 880 | local->dynamic_ps_forced_timeout = -1; |
Juuso Oikarinen | 195e294 | 2010-04-27 12:47:40 +0300 | [diff] [blame] | 881 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 882 | result = sta_info_start(local); |
| 883 | if (result < 0) |
| 884 | goto fail_sta_info; |
| 885 | |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 886 | result = ieee80211_wep_init(local); |
John W. Linville | 3473187 | 2010-07-07 15:07:49 -0400 | [diff] [blame] | 887 | if (result < 0) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 888 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
| 889 | result); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 890 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 891 | rtnl_lock(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 892 | |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 893 | result = ieee80211_init_rate_ctrl_alg(local, |
| 894 | hw->rate_control_algorithm); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 895 | if (result < 0) { |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 896 | wiphy_debug(local->hw.wiphy, |
| 897 | "Failed to initialize rate control algorithm\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 898 | goto fail_rate; |
| 899 | } |
| 900 | |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 901 | /* add one default STA interface if supported */ |
| 902 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { |
| 903 | result = ieee80211_if_add(local, "wlan%d", NULL, |
| 904 | NL80211_IFTYPE_STATION, NULL); |
| 905 | if (result) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 906 | wiphy_warn(local->hw.wiphy, |
| 907 | "Failed to add default virtual iface\n"); |
Johannes Berg | 8dffff2 | 2008-12-09 00:10:30 +0100 | [diff] [blame] | 908 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 909 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 910 | rtnl_unlock(); |
| 911 | |
| 912 | ieee80211_led_init(local); |
| 913 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 914 | local->network_latency_notifier.notifier_call = |
| 915 | ieee80211_max_network_latency; |
| 916 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, |
| 917 | &local->network_latency_notifier); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 918 | if (result) { |
| 919 | rtnl_lock(); |
| 920 | goto fail_pm_qos; |
| 921 | } |
| 922 | |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 923 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 924 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
| 925 | result = register_inetaddr_notifier(&local->ifa_notifier); |
| 926 | if (result) |
| 927 | goto fail_ifa; |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 928 | #endif |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 929 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 930 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
| 931 | local->hw.napi_weight); |
| 932 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 933 | return 0; |
| 934 | |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 935 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 936 | fail_ifa: |
| 937 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 938 | &local->network_latency_notifier); |
| 939 | rtnl_lock(); |
Juuso Oikarinen | 93c08c3 | 2010-08-03 08:22:25 +0300 | [diff] [blame] | 940 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 941 | fail_pm_qos: |
| 942 | ieee80211_led_exit(local); |
| 943 | ieee80211_remove_interfaces(local); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 944 | fail_rate: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 945 | rtnl_unlock(); |
Alan Jenkins | d4c4a9a | 2009-04-29 11:41:24 +0100 | [diff] [blame] | 946 | ieee80211_wep_free(local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 947 | sta_info_stop(local); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 948 | fail_sta_info: |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 949 | destroy_workqueue(local->workqueue); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 950 | fail_workqueue: |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 951 | wiphy_unregister(local->hw.wiphy); |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 952 | fail_wiphy_register: |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 953 | if (local->wiphy_ciphers_allocated) |
| 954 | kfree(local->hw.wiphy->cipher_suites); |
Johannes Berg | 11ba964 | 2009-08-19 19:45:50 +0200 | [diff] [blame] | 955 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 956 | return result; |
| 957 | } |
| 958 | EXPORT_SYMBOL(ieee80211_register_hw); |
| 959 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 960 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
| 961 | { |
| 962 | struct ieee80211_local *local = hw_to_local(hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 963 | |
| 964 | tasklet_kill(&local->tx_pending_tasklet); |
| 965 | tasklet_kill(&local->tasklet); |
| 966 | |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 967 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
| 968 | &local->network_latency_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 969 | #ifdef CONFIG_INET |
Juuso Oikarinen | 2b2c009 | 2010-05-27 15:32:13 +0300 | [diff] [blame] | 970 | unregister_inetaddr_notifier(&local->ifa_notifier); |
John W. Linville | 26b36cf | 2010-06-04 14:25:44 -0400 | [diff] [blame] | 971 | #endif |
Johannes Berg | 10f644a | 2009-04-16 13:17:25 +0200 | [diff] [blame] | 972 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 973 | rtnl_lock(); |
| 974 | |
Johannes Berg | 7901042 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 975 | /* |
| 976 | * At this point, interface list manipulations are fine |
| 977 | * because the driver cannot be handing us frames any |
| 978 | * more and the tasklet is killed. |
| 979 | */ |
Johannes Berg | 7563652 | 2008-07-09 14:40:35 +0200 | [diff] [blame] | 980 | ieee80211_remove_interfaces(local); |
Johannes Berg | 5b2812e | 2007-09-26 14:27:23 +0200 | [diff] [blame] | 981 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 982 | rtnl_unlock(); |
| 983 | |
Johannes Berg | 071249b | 2010-08-25 14:47:38 +0200 | [diff] [blame] | 984 | /* |
| 985 | * Now all work items will be gone, but the |
| 986 | * timer might still be armed, so delete it |
| 987 | */ |
| 988 | del_timer_sync(&local->work_timer); |
| 989 | |
Christian Lamparter | 258086a | 2010-08-22 23:48:25 +0200 | [diff] [blame] | 990 | cancel_work_sync(&local->restart_work); |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 991 | cancel_work_sync(&local->reconfig_filter); |
| 992 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 993 | ieee80211_clear_tx_pending(local); |
| 994 | sta_info_stop(local); |
| 995 | rate_control_deinitialize(local); |
| 996 | |
Joe Perches | f64f9e7 | 2009-11-29 16:55:45 -0800 | [diff] [blame] | 997 | if (skb_queue_len(&local->skb_queue) || |
| 998 | skb_queue_len(&local->skb_queue_unreliable)) |
Joe Perches | 0fb9a9e | 2010-08-20 16:25:38 -0700 | [diff] [blame] | 999 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1000 | skb_queue_purge(&local->skb_queue); |
| 1001 | skb_queue_purge(&local->skb_queue_unreliable); |
Christian Lamparter | 24a8fda | 2010-12-30 17:25:29 +0100 | [diff] [blame] | 1002 | skb_queue_purge(&local->rx_skb_queue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1003 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1004 | destroy_workqueue(local->workqueue); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1005 | wiphy_unregister(local->hw.wiphy); |
| 1006 | ieee80211_wep_free(local); |
| 1007 | ieee80211_led_exit(local); |
Johannes Berg | 5ba6353 | 2009-08-07 17:54:07 +0200 | [diff] [blame] | 1008 | kfree(local->int_scan_req); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1009 | } |
| 1010 | EXPORT_SYMBOL(ieee80211_unregister_hw); |
| 1011 | |
| 1012 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
| 1013 | { |
| 1014 | struct ieee80211_local *local = hw_to_local(hw); |
| 1015 | |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1016 | mutex_destroy(&local->iflist_mtx); |
Johannes Berg | a1699b7 | 2010-07-30 16:46:07 +0200 | [diff] [blame] | 1017 | mutex_destroy(&local->mtx); |
Johannes Berg | c771c9d | 2009-01-23 22:54:03 +0100 | [diff] [blame] | 1018 | |
Johannes Berg | 3ffc2a9 | 2010-08-27 14:26:52 +0300 | [diff] [blame] | 1019 | if (local->wiphy_ciphers_allocated) |
| 1020 | kfree(local->hw.wiphy->cipher_suites); |
| 1021 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1022 | wiphy_free(local->hw.wiphy); |
| 1023 | } |
| 1024 | EXPORT_SYMBOL(ieee80211_free_hw); |
| 1025 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1026 | static int __init ieee80211_init(void) |
| 1027 | { |
| 1028 | struct sk_buff *skb; |
| 1029 | int ret; |
| 1030 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1031 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
| 1032 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + |
Johannes Berg | c6a1fa1 | 2008-10-07 12:04:32 +0200 | [diff] [blame] | 1033 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1034 | |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1035 | ret = rc80211_minstrel_init(); |
| 1036 | if (ret) |
| 1037 | return ret; |
| 1038 | |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1039 | ret = rc80211_minstrel_ht_init(); |
| 1040 | if (ret) |
| 1041 | goto err_minstrel; |
| 1042 | |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1043 | ret = rc80211_pid_init(); |
Mattias Nissler | ad01837 | 2007-12-19 01:25:57 +0100 | [diff] [blame] | 1044 | if (ret) |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1045 | goto err_pid; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1046 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1047 | ret = ieee80211_iface_init(); |
| 1048 | if (ret) |
| 1049 | goto err_netdev; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 1050 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1051 | return 0; |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1052 | err_netdev: |
| 1053 | rc80211_pid_exit(); |
| 1054 | err_pid: |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1055 | rc80211_minstrel_ht_exit(); |
| 1056 | err_minstrel: |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1057 | rc80211_minstrel_exit(); |
| 1058 | |
| 1059 | return ret; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1060 | } |
| 1061 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1062 | static void __exit ieee80211_exit(void) |
| 1063 | { |
Johannes Berg | 4b47589 | 2008-01-02 15:17:03 +0100 | [diff] [blame] | 1064 | rc80211_pid_exit(); |
Felix Fietkau | ec8aa66 | 2010-05-13 16:48:03 +0200 | [diff] [blame] | 1065 | rc80211_minstrel_ht_exit(); |
Felix Fietkau | cccf129 | 2008-10-05 18:07:45 +0200 | [diff] [blame] | 1066 | rc80211_minstrel_exit(); |
Johannes Berg | ac71c69 | 2007-10-28 14:17:44 +0100 | [diff] [blame] | 1067 | |
Luis Carlos Cobo | f7a9214 | 2008-02-23 15:17:18 +0100 | [diff] [blame] | 1068 | if (mesh_allocated) |
| 1069 | ieee80211s_stop(); |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 1070 | |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 1071 | ieee80211_iface_exit(); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1072 | } |
| 1073 | |
| 1074 | |
Johannes Berg | ca9938f | 2007-09-11 12:50:32 +0200 | [diff] [blame] | 1075 | subsys_initcall(ieee80211_init); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1076 | module_exit(ieee80211_exit); |
| 1077 | |
| 1078 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); |
| 1079 | MODULE_LICENSE("GPL"); |