Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This is the linux wireless configuration interface. |
| 3 | * |
Johannes Berg | 0864512 | 2009-05-11 13:54:58 +0200 | [diff] [blame] | 4 | * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net> |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <linux/if.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/err.h> |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 10 | #include <linux/list.h> |
| 11 | #include <linux/nl80211.h> |
| 12 | #include <linux/debugfs.h> |
| 13 | #include <linux/notifier.h> |
| 14 | #include <linux/device.h> |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 15 | #include <linux/rtnetlink.h> |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 16 | #include <net/genetlink.h> |
| 17 | #include <net/cfg80211.h> |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 18 | #include "nl80211.h" |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 19 | #include "core.h" |
| 20 | #include "sysfs.h" |
Luis R. Rodriguez | 1ac6130 | 2009-05-02 00:37:21 -0400 | [diff] [blame] | 21 | #include "debugfs.h" |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 22 | |
| 23 | /* name for sysfs, %d is appended */ |
| 24 | #define PHY_NAME "phy" |
| 25 | |
| 26 | MODULE_AUTHOR("Johannes Berg"); |
| 27 | MODULE_LICENSE("GPL"); |
| 28 | MODULE_DESCRIPTION("wireless configuration support"); |
| 29 | |
| 30 | /* RCU might be appropriate here since we usually |
| 31 | * only read the list, and that can happen quite |
| 32 | * often because we need to do it for each command */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 33 | LIST_HEAD(cfg80211_rdev_list); |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 34 | |
| 35 | /* |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 36 | * This is used to protect the cfg80211_rdev_list, cfg80211_regdomain, |
Luis R. Rodriguez | e38f8a7 | 2009-02-21 00:20:39 -0500 | [diff] [blame] | 37 | * country_ie_regdomain, the reg_beacon_list and the the last regulatory |
| 38 | * request receipt (last_request). |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 39 | */ |
| 40 | DEFINE_MUTEX(cfg80211_mutex); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 41 | |
| 42 | /* for debugfs */ |
| 43 | static struct dentry *ieee80211_debugfs_dir; |
| 44 | |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 45 | /* requires cfg80211_mutex to be held! */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 46 | struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 47 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 48 | struct cfg80211_registered_device *result = NULL, *rdev; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 49 | |
Luis R. Rodriguez | 85fd129 | 2009-02-21 00:04:20 -0500 | [diff] [blame] | 50 | if (!wiphy_idx_valid(wiphy_idx)) |
| 51 | return NULL; |
| 52 | |
Luis R. Rodriguez | 761cf7e | 2009-02-21 00:04:25 -0500 | [diff] [blame] | 53 | assert_cfg80211_lock(); |
| 54 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 55 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
| 56 | if (rdev->wiphy_idx == wiphy_idx) { |
| 57 | result = rdev; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 58 | break; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | return result; |
| 63 | } |
| 64 | |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 65 | int get_wiphy_idx(struct wiphy *wiphy) |
| 66 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 67 | struct cfg80211_registered_device *rdev; |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 68 | if (!wiphy) |
| 69 | return WIPHY_IDX_STALE; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 70 | rdev = wiphy_to_dev(wiphy); |
| 71 | return rdev->wiphy_idx; |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 72 | } |
| 73 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 74 | /* requires cfg80211_rdev_mutex to be held! */ |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 75 | struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx) |
| 76 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 77 | struct cfg80211_registered_device *rdev; |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 78 | |
| 79 | if (!wiphy_idx_valid(wiphy_idx)) |
| 80 | return NULL; |
| 81 | |
| 82 | assert_cfg80211_lock(); |
| 83 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 84 | rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx); |
| 85 | if (!rdev) |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 86 | return NULL; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 87 | return &rdev->wiphy; |
Luis R. Rodriguez | 806a9e3 | 2009-02-21 00:04:26 -0500 | [diff] [blame] | 88 | } |
| 89 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 90 | /* requires cfg80211_mutex to be held! */ |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 91 | struct cfg80211_registered_device * |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 92 | __cfg80211_rdev_from_info(struct genl_info *info) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 93 | { |
| 94 | int ifindex; |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 95 | struct cfg80211_registered_device *bywiphyidx = NULL, *byifidx = NULL; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 96 | struct net_device *dev; |
| 97 | int err = -EINVAL; |
| 98 | |
Luis R. Rodriguez | 761cf7e | 2009-02-21 00:04:25 -0500 | [diff] [blame] | 99 | assert_cfg80211_lock(); |
| 100 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 101 | if (info->attrs[NL80211_ATTR_WIPHY]) { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 102 | bywiphyidx = cfg80211_rdev_by_wiphy_idx( |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 103 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY])); |
| 104 | err = -ENODEV; |
| 105 | } |
| 106 | |
| 107 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
| 108 | ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); |
| 109 | dev = dev_get_by_index(&init_net, ifindex); |
| 110 | if (dev) { |
| 111 | if (dev->ieee80211_ptr) |
| 112 | byifidx = |
| 113 | wiphy_to_dev(dev->ieee80211_ptr->wiphy); |
| 114 | dev_put(dev); |
| 115 | } |
| 116 | err = -ENODEV; |
| 117 | } |
| 118 | |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 119 | if (bywiphyidx && byifidx) { |
| 120 | if (bywiphyidx != byifidx) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 121 | return ERR_PTR(-EINVAL); |
| 122 | else |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 123 | return bywiphyidx; /* == byifidx */ |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 124 | } |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 125 | if (bywiphyidx) |
| 126 | return bywiphyidx; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 127 | |
| 128 | if (byifidx) |
| 129 | return byifidx; |
| 130 | |
| 131 | return ERR_PTR(err); |
| 132 | } |
| 133 | |
| 134 | struct cfg80211_registered_device * |
| 135 | cfg80211_get_dev_from_info(struct genl_info *info) |
| 136 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 137 | struct cfg80211_registered_device *rdev; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 138 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 139 | mutex_lock(&cfg80211_mutex); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 140 | rdev = __cfg80211_rdev_from_info(info); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 141 | |
| 142 | /* if it is not an error we grab the lock on |
| 143 | * it to assure it won't be going away while |
| 144 | * we operate on it */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 145 | if (!IS_ERR(rdev)) |
| 146 | mutex_lock(&rdev->mtx); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 147 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 148 | mutex_unlock(&cfg80211_mutex); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 149 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 150 | return rdev; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | struct cfg80211_registered_device * |
| 154 | cfg80211_get_dev_from_ifindex(int ifindex) |
| 155 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 156 | struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 157 | struct net_device *dev; |
| 158 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 159 | mutex_lock(&cfg80211_mutex); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 160 | dev = dev_get_by_index(&init_net, ifindex); |
| 161 | if (!dev) |
| 162 | goto out; |
| 163 | if (dev->ieee80211_ptr) { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 164 | rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy); |
| 165 | mutex_lock(&rdev->mtx); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 166 | } else |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 167 | rdev = ERR_PTR(-ENODEV); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 168 | dev_put(dev); |
| 169 | out: |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 170 | mutex_unlock(&cfg80211_mutex); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 171 | return rdev; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 172 | } |
| 173 | |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 174 | /* requires cfg80211_mutex to be held */ |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 175 | int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, |
| 176 | char *newname) |
| 177 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 178 | struct cfg80211_registered_device *rdev2; |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 179 | int wiphy_idx, taken = -1, result, digits; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 180 | |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 181 | assert_cfg80211_lock(); |
Eric W. Biederman | 2940bb6 | 2008-05-08 14:30:18 -0700 | [diff] [blame] | 182 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 183 | /* prohibit calling the thing phy%d when %d is not its number */ |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 184 | sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken); |
| 185 | if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) { |
| 186 | /* count number of places needed to print wiphy_idx */ |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 187 | digits = 1; |
Luis R. Rodriguez | b5850a7 | 2009-02-21 00:04:19 -0500 | [diff] [blame] | 188 | while (wiphy_idx /= 10) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 189 | digits++; |
| 190 | /* |
| 191 | * deny the name if it is phy<idx> where <idx> is printed |
| 192 | * without leading zeroes. taken == strlen(newname) here |
| 193 | */ |
| 194 | if (taken == strlen(PHY_NAME) + digits) |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 195 | return -EINVAL; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 196 | } |
| 197 | |
Eric W. Biederman | 2940bb6 | 2008-05-08 14:30:18 -0700 | [diff] [blame] | 198 | |
| 199 | /* Ignore nop renames */ |
Eric W. Biederman | 2940bb6 | 2008-05-08 14:30:18 -0700 | [diff] [blame] | 200 | if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0) |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 201 | return 0; |
Eric W. Biederman | 2940bb6 | 2008-05-08 14:30:18 -0700 | [diff] [blame] | 202 | |
| 203 | /* Ensure another device does not already have this name. */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 204 | list_for_each_entry(rdev2, &cfg80211_rdev_list, list) |
| 205 | if (strcmp(newname, dev_name(&rdev2->wiphy.dev)) == 0) |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 206 | return -EINVAL; |
Eric W. Biederman | 2940bb6 | 2008-05-08 14:30:18 -0700 | [diff] [blame] | 207 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 208 | result = device_rename(&rdev->wiphy.dev, newname); |
| 209 | if (result) |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 210 | return result; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 211 | |
Johannes Berg | 33c0360 | 2008-10-08 10:23:48 +0200 | [diff] [blame] | 212 | if (rdev->wiphy.debugfsdir && |
| 213 | !debugfs_rename(rdev->wiphy.debugfsdir->d_parent, |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 214 | rdev->wiphy.debugfsdir, |
| 215 | rdev->wiphy.debugfsdir->d_parent, |
| 216 | newname)) |
| 217 | printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n", |
| 218 | newname); |
| 219 | |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 220 | nl80211_notify_dev_rename(rdev); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 221 | |
Johannes Berg | 4bbf4d5 | 2009-03-24 09:35:46 +0100 | [diff] [blame] | 222 | return 0; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 223 | } |
| 224 | |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 225 | static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data) |
| 226 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 227 | struct cfg80211_registered_device *rdev = data; |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 228 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 229 | rdev->ops->rfkill_poll(&rdev->wiphy); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | static int cfg80211_rfkill_set_block(void *data, bool blocked) |
| 233 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 234 | struct cfg80211_registered_device *rdev = data; |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 235 | struct wireless_dev *wdev; |
| 236 | |
| 237 | if (!blocked) |
| 238 | return 0; |
| 239 | |
| 240 | rtnl_lock(); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 241 | mutex_lock(&rdev->devlist_mtx); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 242 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 243 | list_for_each_entry(wdev, &rdev->netdev_list, list) |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 244 | dev_close(wdev->netdev); |
| 245 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 246 | mutex_unlock(&rdev->devlist_mtx); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 247 | rtnl_unlock(); |
| 248 | |
| 249 | return 0; |
| 250 | } |
| 251 | |
| 252 | static void cfg80211_rfkill_sync_work(struct work_struct *work) |
| 253 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 254 | struct cfg80211_registered_device *rdev; |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 255 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 256 | rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync); |
| 257 | cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill)); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 258 | } |
| 259 | |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 260 | static void cfg80211_process_events(struct wireless_dev *wdev) |
| 261 | { |
| 262 | struct cfg80211_event *ev; |
| 263 | unsigned long flags; |
| 264 | |
| 265 | spin_lock_irqsave(&wdev->event_lock, flags); |
| 266 | while (!list_empty(&wdev->event_list)) { |
| 267 | ev = list_first_entry(&wdev->event_list, |
| 268 | struct cfg80211_event, list); |
| 269 | list_del(&ev->list); |
| 270 | spin_unlock_irqrestore(&wdev->event_lock, flags); |
| 271 | |
| 272 | wdev_lock(wdev); |
| 273 | switch (ev->type) { |
| 274 | case EVENT_CONNECT_RESULT: |
| 275 | __cfg80211_connect_result( |
| 276 | wdev->netdev, ev->cr.bssid, |
| 277 | ev->cr.req_ie, ev->cr.req_ie_len, |
| 278 | ev->cr.resp_ie, ev->cr.resp_ie_len, |
| 279 | ev->cr.status, |
| 280 | ev->cr.status == WLAN_STATUS_SUCCESS); |
| 281 | break; |
| 282 | case EVENT_ROAMED: |
| 283 | __cfg80211_roamed(wdev, ev->rm.bssid, |
| 284 | ev->rm.req_ie, ev->rm.req_ie_len, |
| 285 | ev->rm.resp_ie, ev->rm.resp_ie_len); |
| 286 | break; |
| 287 | case EVENT_DISCONNECTED: |
| 288 | __cfg80211_disconnected(wdev->netdev, |
| 289 | ev->dc.ie, ev->dc.ie_len, |
| 290 | ev->dc.reason, true); |
| 291 | break; |
| 292 | case EVENT_IBSS_JOINED: |
| 293 | __cfg80211_ibss_joined(wdev->netdev, ev->ij.bssid); |
| 294 | break; |
| 295 | } |
| 296 | wdev_unlock(wdev); |
| 297 | |
| 298 | kfree(ev); |
| 299 | |
| 300 | spin_lock_irqsave(&wdev->event_lock, flags); |
| 301 | } |
| 302 | spin_unlock_irqrestore(&wdev->event_lock, flags); |
| 303 | } |
| 304 | |
| 305 | static void cfg80211_event_work(struct work_struct *work) |
| 306 | { |
| 307 | struct cfg80211_registered_device *rdev; |
| 308 | struct wireless_dev *wdev; |
| 309 | |
| 310 | rdev = container_of(work, struct cfg80211_registered_device, |
| 311 | event_work); |
| 312 | |
| 313 | rtnl_lock(); |
| 314 | cfg80211_lock_rdev(rdev); |
| 315 | mutex_lock(&rdev->devlist_mtx); |
| 316 | |
| 317 | list_for_each_entry(wdev, &rdev->netdev_list, list) |
| 318 | cfg80211_process_events(wdev); |
| 319 | |
| 320 | mutex_unlock(&rdev->devlist_mtx); |
| 321 | cfg80211_unlock_rdev(rdev); |
| 322 | rtnl_unlock(); |
| 323 | } |
| 324 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 325 | /* exported functions */ |
| 326 | |
David Kilroy | 3dcf670 | 2009-05-16 23:13:46 +0100 | [diff] [blame] | 327 | struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 328 | { |
Denis ChengRq | 638af07 | 2008-09-23 02:35:37 +0800 | [diff] [blame] | 329 | static int wiphy_counter; |
| 330 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 331 | struct cfg80211_registered_device *rdev; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 332 | int alloc_size; |
| 333 | |
Johannes Berg | 0b20633 | 2009-07-07 03:56:13 +0200 | [diff] [blame^] | 334 | WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key)); |
| 335 | WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc)); |
| 336 | WARN_ON(ops->connect && !ops->disconnect); |
| 337 | WARN_ON(ops->join_ibss && !ops->leave_ibss); |
| 338 | WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf); |
| 339 | WARN_ON(ops->add_station && !ops->del_station); |
| 340 | WARN_ON(ops->add_mpath && !ops->del_mpath); |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 341 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 342 | alloc_size = sizeof(*rdev) + sizeof_priv; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 343 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 344 | rdev = kzalloc(alloc_size, GFP_KERNEL); |
| 345 | if (!rdev) |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 346 | return NULL; |
| 347 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 348 | rdev->ops = ops; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 349 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 350 | mutex_lock(&cfg80211_mutex); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 351 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 352 | rdev->wiphy_idx = wiphy_counter++; |
Johannes Berg | a4d73ee | 2007-04-26 20:50:35 -0700 | [diff] [blame] | 353 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 354 | if (unlikely(!wiphy_idx_valid(rdev->wiphy_idx))) { |
Denis ChengRq | 638af07 | 2008-09-23 02:35:37 +0800 | [diff] [blame] | 355 | wiphy_counter--; |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 356 | mutex_unlock(&cfg80211_mutex); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 357 | /* ugh, wrapped! */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 358 | kfree(rdev); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 359 | return NULL; |
| 360 | } |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 361 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 362 | mutex_unlock(&cfg80211_mutex); |
Denis ChengRq | 638af07 | 2008-09-23 02:35:37 +0800 | [diff] [blame] | 363 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 364 | /* give it a proper name */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 365 | dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 366 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 367 | mutex_init(&rdev->mtx); |
| 368 | mutex_init(&rdev->devlist_mtx); |
| 369 | INIT_LIST_HEAD(&rdev->netdev_list); |
| 370 | spin_lock_init(&rdev->bss_lock); |
| 371 | INIT_LIST_HEAD(&rdev->bss_list); |
| 372 | INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 373 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 374 | device_initialize(&rdev->wiphy.dev); |
| 375 | rdev->wiphy.dev.class = &ieee80211_class; |
| 376 | rdev->wiphy.dev.platform_data = rdev; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 377 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 378 | rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block; |
| 379 | rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev), |
| 380 | &rdev->wiphy.dev, RFKILL_TYPE_WLAN, |
| 381 | &rdev->rfkill_ops, rdev); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 382 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 383 | if (!rdev->rfkill) { |
| 384 | kfree(rdev); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 385 | return NULL; |
| 386 | } |
| 387 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 388 | INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work); |
| 389 | INIT_WORK(&rdev->conn_work, cfg80211_conn_work); |
| 390 | INIT_WORK(&rdev->event_work, cfg80211_event_work); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 391 | |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 392 | /* |
| 393 | * Initialize wiphy parameters to IEEE 802.11 MIB default values. |
| 394 | * Fragmentation and RTS threshold are disabled by default with the |
| 395 | * special -1 value. |
| 396 | */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 397 | rdev->wiphy.retry_short = 7; |
| 398 | rdev->wiphy.retry_long = 4; |
| 399 | rdev->wiphy.frag_threshold = (u32) -1; |
| 400 | rdev->wiphy.rts_threshold = (u32) -1; |
Jouni Malinen | b9a5f8ca | 2009-04-20 18:39:05 +0200 | [diff] [blame] | 401 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 402 | return &rdev->wiphy; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 403 | } |
| 404 | EXPORT_SYMBOL(wiphy_new); |
| 405 | |
| 406 | int wiphy_register(struct wiphy *wiphy) |
| 407 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 408 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 409 | int res; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 410 | enum ieee80211_band band; |
| 411 | struct ieee80211_supported_band *sband; |
| 412 | bool have_band = false; |
| 413 | int i; |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 414 | u16 ifmodes = wiphy->interface_modes; |
| 415 | |
| 416 | /* sanity check ifmodes */ |
| 417 | WARN_ON(!ifmodes); |
| 418 | ifmodes &= ((1 << __NL80211_IFTYPE_AFTER_LAST) - 1) & ~1; |
| 419 | if (WARN_ON(ifmodes != wiphy->interface_modes)) |
| 420 | wiphy->interface_modes = ifmodes; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 421 | |
| 422 | /* sanity check supported bands/channels */ |
| 423 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 424 | sband = wiphy->bands[band]; |
| 425 | if (!sband) |
| 426 | continue; |
| 427 | |
| 428 | sband->band = band; |
| 429 | |
Johannes Berg | 881d948 | 2009-01-21 15:13:48 +0100 | [diff] [blame] | 430 | if (WARN_ON(!sband->n_channels || !sband->n_bitrates)) |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 431 | return -EINVAL; |
Johannes Berg | 881d948 | 2009-01-21 15:13:48 +0100 | [diff] [blame] | 432 | |
| 433 | /* |
| 434 | * Since we use a u32 for rate bitmaps in |
| 435 | * ieee80211_get_response_rate, we cannot |
| 436 | * have more than 32 legacy rates. |
| 437 | */ |
| 438 | if (WARN_ON(sband->n_bitrates > 32)) |
| 439 | return -EINVAL; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 440 | |
| 441 | for (i = 0; i < sband->n_channels; i++) { |
| 442 | sband->channels[i].orig_flags = |
| 443 | sband->channels[i].flags; |
| 444 | sband->channels[i].orig_mag = |
| 445 | sband->channels[i].max_antenna_gain; |
| 446 | sband->channels[i].orig_mpwr = |
| 447 | sband->channels[i].max_power; |
| 448 | sband->channels[i].band = band; |
| 449 | } |
| 450 | |
| 451 | have_band = true; |
| 452 | } |
| 453 | |
| 454 | if (!have_band) { |
| 455 | WARN_ON(1); |
| 456 | return -EINVAL; |
| 457 | } |
| 458 | |
| 459 | /* check and set up bitrates */ |
| 460 | ieee80211_set_bitrate_flags(wiphy); |
| 461 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 462 | res = device_add(&rdev->wiphy.dev); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 463 | if (res) |
Johannes Berg | 2f0accc | 2009-06-10 16:50:29 +0200 | [diff] [blame] | 464 | return res; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 465 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 466 | res = rfkill_register(rdev->rfkill); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 467 | if (res) |
| 468 | goto out_rm_dev; |
| 469 | |
Johannes Berg | 2f0accc | 2009-06-10 16:50:29 +0200 | [diff] [blame] | 470 | mutex_lock(&cfg80211_mutex); |
| 471 | |
| 472 | /* set up regulatory info */ |
| 473 | wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE); |
| 474 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 475 | list_add(&rdev->list, &cfg80211_rdev_list); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 476 | |
Johannes Berg | 2f0accc | 2009-06-10 16:50:29 +0200 | [diff] [blame] | 477 | mutex_unlock(&cfg80211_mutex); |
| 478 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 479 | /* add to debugfs */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 480 | rdev->wiphy.debugfsdir = |
| 481 | debugfs_create_dir(wiphy_name(&rdev->wiphy), |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 482 | ieee80211_debugfs_dir); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 483 | if (IS_ERR(rdev->wiphy.debugfsdir)) |
| 484 | rdev->wiphy.debugfsdir = NULL; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 485 | |
Luis R. Rodriguez | 73d54c9 | 2009-03-09 22:07:42 -0400 | [diff] [blame] | 486 | if (wiphy->custom_regulatory) { |
| 487 | struct regulatory_request request; |
| 488 | |
| 489 | request.wiphy_idx = get_wiphy_idx(wiphy); |
| 490 | request.initiator = NL80211_REGDOM_SET_BY_DRIVER; |
| 491 | request.alpha2[0] = '9'; |
| 492 | request.alpha2[1] = '9'; |
| 493 | |
| 494 | nl80211_send_reg_change_event(&request); |
| 495 | } |
| 496 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 497 | cfg80211_debugfs_rdev_add(rdev); |
Luis R. Rodriguez | 1ac6130 | 2009-05-02 00:37:21 -0400 | [diff] [blame] | 498 | |
Johannes Berg | 2f0accc | 2009-06-10 16:50:29 +0200 | [diff] [blame] | 499 | return 0; |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 500 | |
| 501 | out_rm_dev: |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 502 | device_del(&rdev->wiphy.dev); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 503 | return res; |
| 504 | } |
| 505 | EXPORT_SYMBOL(wiphy_register); |
| 506 | |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 507 | void wiphy_rfkill_start_polling(struct wiphy *wiphy) |
| 508 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 509 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 510 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 511 | if (!rdev->ops->rfkill_poll) |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 512 | return; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 513 | rdev->rfkill_ops.poll = cfg80211_rfkill_poll; |
| 514 | rfkill_resume_polling(rdev->rfkill); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 515 | } |
| 516 | EXPORT_SYMBOL(wiphy_rfkill_start_polling); |
| 517 | |
| 518 | void wiphy_rfkill_stop_polling(struct wiphy *wiphy) |
| 519 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 520 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 521 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 522 | rfkill_pause_polling(rdev->rfkill); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 523 | } |
| 524 | EXPORT_SYMBOL(wiphy_rfkill_stop_polling); |
| 525 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 526 | void wiphy_unregister(struct wiphy *wiphy) |
| 527 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 528 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 529 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 530 | rfkill_unregister(rdev->rfkill); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 531 | |
Johannes Berg | f16bfc1 | 2007-04-26 20:51:12 -0700 | [diff] [blame] | 532 | /* protect the device list */ |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 533 | mutex_lock(&cfg80211_mutex); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 534 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 535 | BUG_ON(!list_empty(&rdev->netdev_list)); |
Johannes Berg | f16bfc1 | 2007-04-26 20:51:12 -0700 | [diff] [blame] | 536 | |
| 537 | /* |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 538 | * Try to grab rdev->mtx. If a command is still in progress, |
Johannes Berg | f16bfc1 | 2007-04-26 20:51:12 -0700 | [diff] [blame] | 539 | * hopefully the driver will refuse it since it's tearing |
| 540 | * down the device already. We wait for this command to complete |
| 541 | * before unlinking the item from the list. |
| 542 | * Note: as codified by the BUG_ON above we cannot get here if |
| 543 | * a virtual interface is still associated. Hence, we can only |
| 544 | * get to lock contention here if userspace issues a command |
| 545 | * that identified the hardware by wiphy index. |
| 546 | */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 547 | mutex_lock(&rdev->mtx); |
Johannes Berg | f16bfc1 | 2007-04-26 20:51:12 -0700 | [diff] [blame] | 548 | /* unlock again before freeing */ |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 549 | mutex_unlock(&rdev->mtx); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 550 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 551 | cancel_work_sync(&rdev->conn_work); |
| 552 | cancel_work_sync(&rdev->scan_done_wk); |
| 553 | kfree(rdev->scan_req); |
| 554 | flush_work(&rdev->event_work); |
Johannes Berg | 6829c87 | 2009-07-02 09:13:27 +0200 | [diff] [blame] | 555 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 556 | cfg80211_debugfs_rdev_del(rdev); |
Luis R. Rodriguez | 1ac6130 | 2009-05-02 00:37:21 -0400 | [diff] [blame] | 557 | |
Luis R. Rodriguez | 3f2355c | 2008-11-12 14:22:02 -0800 | [diff] [blame] | 558 | /* If this device got a regulatory hint tell core its |
| 559 | * free to listen now to a new shiny device regulatory hint */ |
| 560 | reg_device_remove(wiphy); |
| 561 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 562 | list_del(&rdev->list); |
| 563 | device_del(&rdev->wiphy.dev); |
| 564 | debugfs_remove(rdev->wiphy.debugfsdir); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 565 | |
Luis R. Rodriguez | a179439 | 2009-02-21 00:04:21 -0500 | [diff] [blame] | 566 | mutex_unlock(&cfg80211_mutex); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 567 | } |
| 568 | EXPORT_SYMBOL(wiphy_unregister); |
| 569 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 570 | void cfg80211_dev_free(struct cfg80211_registered_device *rdev) |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 571 | { |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 572 | struct cfg80211_internal_bss *scan, *tmp; |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 573 | rfkill_destroy(rdev->rfkill); |
| 574 | mutex_destroy(&rdev->mtx); |
| 575 | mutex_destroy(&rdev->devlist_mtx); |
| 576 | list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list) |
Johannes Berg | 78c1c7e | 2009-02-10 21:25:57 +0100 | [diff] [blame] | 577 | cfg80211_put_bss(&scan->pub); |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 578 | kfree(rdev); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 579 | } |
| 580 | |
| 581 | void wiphy_free(struct wiphy *wiphy) |
| 582 | { |
| 583 | put_device(&wiphy->dev); |
| 584 | } |
| 585 | EXPORT_SYMBOL(wiphy_free); |
| 586 | |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 587 | void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked) |
| 588 | { |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 589 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 590 | |
Johannes Berg | 79c97e9 | 2009-07-07 03:56:12 +0200 | [diff] [blame] | 591 | if (rfkill_set_hw_state(rdev->rfkill, blocked)) |
| 592 | schedule_work(&rdev->rfkill_sync); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 593 | } |
| 594 | EXPORT_SYMBOL(wiphy_rfkill_set_hw_state); |
| 595 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 596 | static int cfg80211_netdev_notifier_call(struct notifier_block * nb, |
| 597 | unsigned long state, |
| 598 | void *ndev) |
| 599 | { |
| 600 | struct net_device *dev = ndev; |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 601 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 602 | struct cfg80211_registered_device *rdev; |
| 603 | |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 604 | if (!wdev) |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 605 | return NOTIFY_DONE; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 606 | |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 607 | rdev = wiphy_to_dev(wdev->wiphy); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 608 | |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 609 | WARN_ON(wdev->iftype == NL80211_IFTYPE_UNSPECIFIED); |
Johannes Berg | 60719ff | 2008-09-16 14:55:09 +0200 | [diff] [blame] | 610 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 611 | switch (state) { |
| 612 | case NETDEV_REGISTER: |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 613 | mutex_init(&wdev->mtx); |
| 614 | INIT_LIST_HEAD(&wdev->event_list); |
| 615 | spin_lock_init(&wdev->event_lock); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 616 | mutex_lock(&rdev->devlist_mtx); |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 617 | list_add(&wdev->list, &rdev->netdev_list); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 618 | if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj, |
| 619 | "phy80211")) { |
| 620 | printk(KERN_ERR "wireless: failed to add phy80211 " |
| 621 | "symlink to netdev!\n"); |
| 622 | } |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 623 | wdev->netdev = dev; |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 624 | wdev->sme_state = CFG80211_SME_IDLE; |
Johannes Berg | bc92afd | 2009-07-01 21:26:57 +0200 | [diff] [blame] | 625 | mutex_unlock(&rdev->devlist_mtx); |
Johannes Berg | 0864512 | 2009-05-11 13:54:58 +0200 | [diff] [blame] | 626 | #ifdef CONFIG_WIRELESS_EXT |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 627 | wdev->wext.default_key = -1; |
| 628 | wdev->wext.default_mgmt_key = -1; |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 629 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
Johannes Berg | bc92afd | 2009-07-01 21:26:57 +0200 | [diff] [blame] | 630 | wdev->wext.ps = CONFIG_CFG80211_DEFAULT_PS_VALUE; |
| 631 | wdev->wext.ps_timeout = 500; |
| 632 | if (rdev->ops->set_power_mgmt) |
| 633 | if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, |
| 634 | wdev->wext.ps, |
| 635 | wdev->wext.ps_timeout)) { |
| 636 | /* assume this means it's off */ |
| 637 | wdev->wext.ps = false; |
| 638 | } |
Johannes Berg | 0864512 | 2009-05-11 13:54:58 +0200 | [diff] [blame] | 639 | #endif |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 640 | break; |
Johannes Berg | 04a773a | 2009-04-19 21:24:32 +0200 | [diff] [blame] | 641 | case NETDEV_GOING_DOWN: |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 642 | switch (wdev->iftype) { |
| 643 | case NL80211_IFTYPE_ADHOC: |
| 644 | cfg80211_leave_ibss(rdev, dev, true); |
| 645 | break; |
| 646 | case NL80211_IFTYPE_STATION: |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 647 | wdev_lock(wdev); |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 648 | #ifdef CONFIG_WIRELESS_EXT |
| 649 | kfree(wdev->wext.ie); |
| 650 | wdev->wext.ie = NULL; |
| 651 | wdev->wext.ie_len = 0; |
Johannes Berg | 0eb1464 | 2009-07-02 15:49:03 +0200 | [diff] [blame] | 652 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 653 | #endif |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 654 | __cfg80211_disconnect(rdev, dev, |
| 655 | WLAN_REASON_DEAUTH_LEAVING, true); |
Johannes Berg | 19957bb | 2009-07-02 17:20:43 +0200 | [diff] [blame] | 656 | cfg80211_mlme_down(rdev, dev); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 657 | wdev_unlock(wdev); |
Samuel Ortiz | b23aa67 | 2009-07-01 21:26:54 +0200 | [diff] [blame] | 658 | break; |
| 659 | default: |
| 660 | break; |
| 661 | } |
Johannes Berg | 04a773a | 2009-04-19 21:24:32 +0200 | [diff] [blame] | 662 | break; |
| 663 | case NETDEV_UP: |
| 664 | #ifdef CONFIG_WIRELESS_EXT |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 665 | cfg80211_lock_rdev(rdev); |
| 666 | wdev_lock(wdev); |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 667 | switch (wdev->iftype) { |
| 668 | case NL80211_IFTYPE_ADHOC: |
| 669 | if (wdev->wext.ibss.ssid_len) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 670 | __cfg80211_join_ibss(rdev, dev, |
| 671 | &wdev->wext.ibss); |
Johannes Berg | 04a773a | 2009-04-19 21:24:32 +0200 | [diff] [blame] | 672 | break; |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 673 | case NL80211_IFTYPE_STATION: |
| 674 | if (wdev->wext.connect.ssid_len) |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 675 | __cfg80211_connect(rdev, dev, |
| 676 | &wdev->wext.connect); |
Johannes Berg | 04a773a | 2009-04-19 21:24:32 +0200 | [diff] [blame] | 677 | break; |
Johannes Berg | f212935 | 2009-07-01 21:26:56 +0200 | [diff] [blame] | 678 | default: |
| 679 | break; |
| 680 | } |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 681 | wdev_unlock(wdev); |
| 682 | cfg80211_unlock_rdev(rdev); |
Johannes Berg | 04a773a | 2009-04-19 21:24:32 +0200 | [diff] [blame] | 683 | #endif |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 684 | break; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 685 | case NETDEV_UNREGISTER: |
| 686 | mutex_lock(&rdev->devlist_mtx); |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 687 | if (!list_empty(&wdev->list)) { |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 688 | sysfs_remove_link(&dev->dev.kobj, "phy80211"); |
Johannes Berg | 2a783c1 | 2009-07-01 21:26:45 +0200 | [diff] [blame] | 689 | list_del_init(&wdev->list); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 690 | } |
| 691 | mutex_unlock(&rdev->devlist_mtx); |
Johannes Berg | 667503d | 2009-07-07 03:56:11 +0200 | [diff] [blame] | 692 | mutex_destroy(&wdev->mtx); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 693 | break; |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 694 | case NETDEV_PRE_UP: |
Johannes Berg | 0b20633 | 2009-07-07 03:56:13 +0200 | [diff] [blame^] | 695 | if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype))) |
| 696 | return notifier_from_errno(-EOPNOTSUPP); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 697 | if (rfkill_blocked(rdev->rfkill)) |
| 698 | return notifier_from_errno(-ERFKILL); |
| 699 | break; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 700 | } |
| 701 | |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 702 | return NOTIFY_DONE; |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | static struct notifier_block cfg80211_netdev_notifier = { |
| 706 | .notifier_call = cfg80211_netdev_notifier_call, |
| 707 | }; |
| 708 | |
| 709 | static int cfg80211_init(void) |
| 710 | { |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 711 | int err; |
| 712 | |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 713 | err = wiphy_sysfs_init(); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 714 | if (err) |
| 715 | goto out_fail_sysfs; |
| 716 | |
| 717 | err = register_netdevice_notifier(&cfg80211_netdev_notifier); |
| 718 | if (err) |
| 719 | goto out_fail_notifier; |
| 720 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 721 | err = nl80211_init(); |
| 722 | if (err) |
| 723 | goto out_fail_nl80211; |
| 724 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 725 | ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL); |
| 726 | |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 727 | err = regulatory_init(); |
| 728 | if (err) |
| 729 | goto out_fail_reg; |
| 730 | |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 731 | return 0; |
| 732 | |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 733 | out_fail_reg: |
| 734 | debugfs_remove(ieee80211_debugfs_dir); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 735 | out_fail_nl80211: |
| 736 | unregister_netdevice_notifier(&cfg80211_netdev_notifier); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 737 | out_fail_notifier: |
| 738 | wiphy_sysfs_exit(); |
| 739 | out_fail_sysfs: |
| 740 | return err; |
| 741 | } |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 742 | |
Johannes Berg | 3a46246 | 2007-09-10 13:44:45 +0200 | [diff] [blame] | 743 | subsys_initcall(cfg80211_init); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 744 | |
| 745 | static void cfg80211_exit(void) |
| 746 | { |
| 747 | debugfs_remove(ieee80211_debugfs_dir); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 748 | nl80211_exit(); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 749 | unregister_netdevice_notifier(&cfg80211_netdev_notifier); |
| 750 | wiphy_sysfs_exit(); |
Luis R. Rodriguez | b2e1b30 | 2008-09-09 23:19:48 -0700 | [diff] [blame] | 751 | regulatory_exit(); |
Johannes Berg | 704232c | 2007-04-23 12:20:05 -0700 | [diff] [blame] | 752 | } |
| 753 | module_exit(cfg80211_exit); |