Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 1 | /* |
| 2 | * This is the new netlink-based wireless configuration interface. |
| 3 | * |
| 4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> |
| 5 | */ |
| 6 | |
| 7 | #include <linux/if.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/err.h> |
| 10 | #include <linux/mutex.h> |
| 11 | #include <linux/list.h> |
| 12 | #include <linux/if_ether.h> |
| 13 | #include <linux/ieee80211.h> |
| 14 | #include <linux/nl80211.h> |
| 15 | #include <linux/rtnetlink.h> |
| 16 | #include <linux/netlink.h> |
| 17 | #include <net/genetlink.h> |
| 18 | #include <net/cfg80211.h> |
| 19 | #include "core.h" |
| 20 | #include "nl80211.h" |
| 21 | |
| 22 | /* the netlink family */ |
| 23 | static struct genl_family nl80211_fam = { |
| 24 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ |
| 25 | .name = "nl80211", /* have users key off the name instead */ |
| 26 | .hdrsize = 0, /* no private header */ |
| 27 | .version = 1, /* no particular meaning now */ |
| 28 | .maxattr = NL80211_ATTR_MAX, |
| 29 | }; |
| 30 | |
| 31 | /* internal helper: get drv and dev */ |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 32 | static int get_drv_dev_by_info_ifindex(struct nlattr **attrs, |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 33 | struct cfg80211_registered_device **drv, |
| 34 | struct net_device **dev) |
| 35 | { |
| 36 | int ifindex; |
| 37 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 38 | if (!attrs[NL80211_ATTR_IFINDEX]) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 39 | return -EINVAL; |
| 40 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 41 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 42 | *dev = dev_get_by_index(&init_net, ifindex); |
| 43 | if (!*dev) |
| 44 | return -ENODEV; |
| 45 | |
| 46 | *drv = cfg80211_get_dev_from_ifindex(ifindex); |
| 47 | if (IS_ERR(*drv)) { |
| 48 | dev_put(*dev); |
| 49 | return PTR_ERR(*drv); |
| 50 | } |
| 51 | |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | /* policy for the attributes */ |
| 56 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { |
| 57 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
| 58 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, |
| 59 | .len = BUS_ID_SIZE-1 }, |
| 60 | |
| 61 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, |
| 62 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, |
| 63 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 64 | |
| 65 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
| 66 | |
| 67 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
| 68 | .len = WLAN_MAX_KEY_LEN }, |
| 69 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, |
| 70 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, |
| 71 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, |
Johannes Berg | ed1b6cc | 2007-12-19 02:03:32 +0100 | [diff] [blame] | 72 | |
| 73 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, |
| 74 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, |
| 75 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, |
| 76 | .len = IEEE80211_MAX_DATA_LEN }, |
| 77 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, |
| 78 | .len = IEEE80211_MAX_DATA_LEN }, |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 79 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
| 80 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, |
| 81 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, |
| 82 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, |
| 83 | .len = NL80211_MAX_SUPP_RATES }, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 84 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 85 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 86 | [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 87 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
| 88 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
| 89 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 90 | }; |
| 91 | |
| 92 | /* message building helper */ |
| 93 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, |
| 94 | int flags, u8 cmd) |
| 95 | { |
| 96 | /* since there is no private header just add the generic one */ |
| 97 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); |
| 98 | } |
| 99 | |
| 100 | /* netlink command implementations */ |
| 101 | |
| 102 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
| 103 | struct cfg80211_registered_device *dev) |
| 104 | { |
| 105 | void *hdr; |
Johannes Berg | ee688b00 | 2008-01-24 19:38:39 +0100 | [diff] [blame] | 106 | struct nlattr *nl_bands, *nl_band; |
| 107 | struct nlattr *nl_freqs, *nl_freq; |
| 108 | struct nlattr *nl_rates, *nl_rate; |
| 109 | enum ieee80211_band band; |
| 110 | struct ieee80211_channel *chan; |
| 111 | struct ieee80211_rate *rate; |
| 112 | int i; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 113 | |
| 114 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); |
| 115 | if (!hdr) |
| 116 | return -1; |
| 117 | |
| 118 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); |
| 119 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
Johannes Berg | ee688b00 | 2008-01-24 19:38:39 +0100 | [diff] [blame] | 120 | |
| 121 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
| 122 | if (!nl_bands) |
| 123 | goto nla_put_failure; |
| 124 | |
| 125 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 126 | if (!dev->wiphy.bands[band]) |
| 127 | continue; |
| 128 | |
| 129 | nl_band = nla_nest_start(msg, band); |
| 130 | if (!nl_band) |
| 131 | goto nla_put_failure; |
| 132 | |
| 133 | /* add frequencies */ |
| 134 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); |
| 135 | if (!nl_freqs) |
| 136 | goto nla_put_failure; |
| 137 | |
| 138 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { |
| 139 | nl_freq = nla_nest_start(msg, i); |
| 140 | if (!nl_freq) |
| 141 | goto nla_put_failure; |
| 142 | |
| 143 | chan = &dev->wiphy.bands[band]->channels[i]; |
| 144 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
| 145 | chan->center_freq); |
| 146 | |
| 147 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
| 148 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); |
| 149 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| 150 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); |
| 151 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) |
| 152 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); |
| 153 | if (chan->flags & IEEE80211_CHAN_RADAR) |
| 154 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); |
| 155 | |
| 156 | nla_nest_end(msg, nl_freq); |
| 157 | } |
| 158 | |
| 159 | nla_nest_end(msg, nl_freqs); |
| 160 | |
| 161 | /* add bitrates */ |
| 162 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); |
| 163 | if (!nl_rates) |
| 164 | goto nla_put_failure; |
| 165 | |
| 166 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { |
| 167 | nl_rate = nla_nest_start(msg, i); |
| 168 | if (!nl_rate) |
| 169 | goto nla_put_failure; |
| 170 | |
| 171 | rate = &dev->wiphy.bands[band]->bitrates[i]; |
| 172 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, |
| 173 | rate->bitrate); |
| 174 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) |
| 175 | NLA_PUT_FLAG(msg, |
| 176 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); |
| 177 | |
| 178 | nla_nest_end(msg, nl_rate); |
| 179 | } |
| 180 | |
| 181 | nla_nest_end(msg, nl_rates); |
| 182 | |
| 183 | nla_nest_end(msg, nl_band); |
| 184 | } |
| 185 | nla_nest_end(msg, nl_bands); |
| 186 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 187 | return genlmsg_end(msg, hdr); |
| 188 | |
| 189 | nla_put_failure: |
Thomas Graf | bc3ed28 | 2008-06-03 16:36:54 -0700 | [diff] [blame] | 190 | genlmsg_cancel(msg, hdr); |
| 191 | return -EMSGSIZE; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
| 195 | { |
| 196 | int idx = 0; |
| 197 | int start = cb->args[0]; |
| 198 | struct cfg80211_registered_device *dev; |
| 199 | |
| 200 | mutex_lock(&cfg80211_drv_mutex); |
| 201 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
Julius Volz | b463727 | 2008-07-08 14:02:19 +0200 | [diff] [blame] | 202 | if (++idx <= start) |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 203 | continue; |
| 204 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, |
| 205 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
Julius Volz | b463727 | 2008-07-08 14:02:19 +0200 | [diff] [blame] | 206 | dev) < 0) { |
| 207 | idx--; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 208 | break; |
Julius Volz | b463727 | 2008-07-08 14:02:19 +0200 | [diff] [blame] | 209 | } |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 210 | } |
| 211 | mutex_unlock(&cfg80211_drv_mutex); |
| 212 | |
| 213 | cb->args[0] = idx; |
| 214 | |
| 215 | return skb->len; |
| 216 | } |
| 217 | |
| 218 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
| 219 | { |
| 220 | struct sk_buff *msg; |
| 221 | struct cfg80211_registered_device *dev; |
| 222 | |
| 223 | dev = cfg80211_get_dev_from_info(info); |
| 224 | if (IS_ERR(dev)) |
| 225 | return PTR_ERR(dev); |
| 226 | |
| 227 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 228 | if (!msg) |
| 229 | goto out_err; |
| 230 | |
| 231 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) |
| 232 | goto out_free; |
| 233 | |
| 234 | cfg80211_put_dev(dev); |
| 235 | |
| 236 | return genlmsg_unicast(msg, info->snd_pid); |
| 237 | |
| 238 | out_free: |
| 239 | nlmsg_free(msg); |
| 240 | out_err: |
| 241 | cfg80211_put_dev(dev); |
| 242 | return -ENOBUFS; |
| 243 | } |
| 244 | |
| 245 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
| 246 | { |
| 247 | struct cfg80211_registered_device *rdev; |
| 248 | int result; |
| 249 | |
| 250 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) |
| 251 | return -EINVAL; |
| 252 | |
| 253 | rdev = cfg80211_get_dev_from_info(info); |
| 254 | if (IS_ERR(rdev)) |
| 255 | return PTR_ERR(rdev); |
| 256 | |
| 257 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); |
| 258 | |
| 259 | cfg80211_put_dev(rdev); |
| 260 | return result; |
| 261 | } |
| 262 | |
| 263 | |
| 264 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
| 265 | struct net_device *dev) |
| 266 | { |
| 267 | void *hdr; |
| 268 | |
| 269 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
| 270 | if (!hdr) |
| 271 | return -1; |
| 272 | |
| 273 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); |
| 274 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
| 275 | /* TODO: interface type */ |
| 276 | return genlmsg_end(msg, hdr); |
| 277 | |
| 278 | nla_put_failure: |
Thomas Graf | bc3ed28 | 2008-06-03 16:36:54 -0700 | [diff] [blame] | 279 | genlmsg_cancel(msg, hdr); |
| 280 | return -EMSGSIZE; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) |
| 284 | { |
| 285 | int wp_idx = 0; |
| 286 | int if_idx = 0; |
| 287 | int wp_start = cb->args[0]; |
| 288 | int if_start = cb->args[1]; |
| 289 | struct cfg80211_registered_device *dev; |
| 290 | struct wireless_dev *wdev; |
| 291 | |
| 292 | mutex_lock(&cfg80211_drv_mutex); |
| 293 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 294 | if (wp_idx < wp_start) { |
| 295 | wp_idx++; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 296 | continue; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 297 | } |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 298 | if_idx = 0; |
| 299 | |
| 300 | mutex_lock(&dev->devlist_mtx); |
| 301 | list_for_each_entry(wdev, &dev->netdev_list, list) { |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 302 | if (if_idx < if_start) { |
| 303 | if_idx++; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 304 | continue; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 305 | } |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 306 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
| 307 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 308 | wdev->netdev) < 0) { |
| 309 | mutex_unlock(&dev->devlist_mtx); |
| 310 | goto out; |
| 311 | } |
| 312 | if_idx++; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 313 | } |
| 314 | mutex_unlock(&dev->devlist_mtx); |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 315 | |
| 316 | wp_idx++; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 317 | } |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 318 | out: |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 319 | mutex_unlock(&cfg80211_drv_mutex); |
| 320 | |
| 321 | cb->args[0] = wp_idx; |
| 322 | cb->args[1] = if_idx; |
| 323 | |
| 324 | return skb->len; |
| 325 | } |
| 326 | |
| 327 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) |
| 328 | { |
| 329 | struct sk_buff *msg; |
| 330 | struct cfg80211_registered_device *dev; |
| 331 | struct net_device *netdev; |
| 332 | int err; |
| 333 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 334 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 335 | if (err) |
| 336 | return err; |
| 337 | |
| 338 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 339 | if (!msg) |
| 340 | goto out_err; |
| 341 | |
| 342 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) |
| 343 | goto out_free; |
| 344 | |
| 345 | dev_put(netdev); |
| 346 | cfg80211_put_dev(dev); |
| 347 | |
| 348 | return genlmsg_unicast(msg, info->snd_pid); |
| 349 | |
| 350 | out_free: |
| 351 | nlmsg_free(msg); |
| 352 | out_err: |
| 353 | dev_put(netdev); |
| 354 | cfg80211_put_dev(dev); |
| 355 | return -ENOBUFS; |
| 356 | } |
| 357 | |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 358 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
| 359 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, |
| 360 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, |
| 361 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, |
| 362 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, |
| 363 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, |
| 364 | }; |
| 365 | |
| 366 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) |
| 367 | { |
| 368 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; |
| 369 | int flag; |
| 370 | |
| 371 | *mntrflags = 0; |
| 372 | |
| 373 | if (!nla) |
| 374 | return -EINVAL; |
| 375 | |
| 376 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, |
| 377 | nla, mntr_flags_policy)) |
| 378 | return -EINVAL; |
| 379 | |
| 380 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) |
| 381 | if (flags[flag]) |
| 382 | *mntrflags |= (1<<flag); |
| 383 | |
| 384 | return 0; |
| 385 | } |
| 386 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 387 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
| 388 | { |
| 389 | struct cfg80211_registered_device *drv; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 390 | struct vif_params params; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 391 | int err, ifindex; |
| 392 | enum nl80211_iftype type; |
| 393 | struct net_device *dev; |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 394 | u32 flags; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 395 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 396 | memset(¶ms, 0, sizeof(params)); |
| 397 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 398 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
| 399 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
| 400 | if (type > NL80211_IFTYPE_MAX) |
| 401 | return -EINVAL; |
| 402 | } else |
| 403 | return -EINVAL; |
| 404 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 405 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 406 | if (err) |
| 407 | return err; |
| 408 | ifindex = dev->ifindex; |
| 409 | dev_put(dev); |
| 410 | |
| 411 | if (!drv->ops->change_virtual_intf) { |
| 412 | err = -EOPNOTSUPP; |
| 413 | goto unlock; |
| 414 | } |
| 415 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 416 | if (type == NL80211_IFTYPE_MESH_POINT && |
| 417 | info->attrs[NL80211_ATTR_MESH_ID]) { |
| 418 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
| 419 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
| 420 | } |
| 421 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 422 | rtnl_lock(); |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 423 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
| 424 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, |
| 425 | &flags); |
| 426 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 427 | type, err ? NULL : &flags, ¶ms); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 428 | rtnl_unlock(); |
| 429 | |
| 430 | unlock: |
| 431 | cfg80211_put_dev(drv); |
| 432 | return err; |
| 433 | } |
| 434 | |
| 435 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) |
| 436 | { |
| 437 | struct cfg80211_registered_device *drv; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 438 | struct vif_params params; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 439 | int err; |
| 440 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 441 | u32 flags; |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 442 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 443 | memset(¶ms, 0, sizeof(params)); |
| 444 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 445 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
| 446 | return -EINVAL; |
| 447 | |
| 448 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
| 449 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
| 450 | if (type > NL80211_IFTYPE_MAX) |
| 451 | return -EINVAL; |
| 452 | } |
| 453 | |
| 454 | drv = cfg80211_get_dev_from_info(info); |
| 455 | if (IS_ERR(drv)) |
| 456 | return PTR_ERR(drv); |
| 457 | |
| 458 | if (!drv->ops->add_virtual_intf) { |
| 459 | err = -EOPNOTSUPP; |
| 460 | goto unlock; |
| 461 | } |
| 462 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 463 | if (type == NL80211_IFTYPE_MESH_POINT && |
| 464 | info->attrs[NL80211_ATTR_MESH_ID]) { |
| 465 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
| 466 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); |
| 467 | } |
| 468 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 469 | rtnl_lock(); |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 470 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
| 471 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, |
| 472 | &flags); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 473 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
Michael Wu | 66f7ac5 | 2008-01-31 19:48:22 +0100 | [diff] [blame] | 474 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 475 | type, err ? NULL : &flags, ¶ms); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 476 | rtnl_unlock(); |
| 477 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 478 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 479 | unlock: |
| 480 | cfg80211_put_dev(drv); |
| 481 | return err; |
| 482 | } |
| 483 | |
| 484 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) |
| 485 | { |
| 486 | struct cfg80211_registered_device *drv; |
| 487 | int ifindex, err; |
| 488 | struct net_device *dev; |
| 489 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 490 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 491 | if (err) |
| 492 | return err; |
| 493 | ifindex = dev->ifindex; |
| 494 | dev_put(dev); |
| 495 | |
| 496 | if (!drv->ops->del_virtual_intf) { |
| 497 | err = -EOPNOTSUPP; |
| 498 | goto out; |
| 499 | } |
| 500 | |
| 501 | rtnl_lock(); |
| 502 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); |
| 503 | rtnl_unlock(); |
| 504 | |
| 505 | out: |
| 506 | cfg80211_put_dev(drv); |
| 507 | return err; |
| 508 | } |
| 509 | |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 510 | struct get_key_cookie { |
| 511 | struct sk_buff *msg; |
| 512 | int error; |
| 513 | }; |
| 514 | |
| 515 | static void get_key_callback(void *c, struct key_params *params) |
| 516 | { |
| 517 | struct get_key_cookie *cookie = c; |
| 518 | |
| 519 | if (params->key) |
| 520 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, |
| 521 | params->key_len, params->key); |
| 522 | |
| 523 | if (params->seq) |
| 524 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, |
| 525 | params->seq_len, params->seq); |
| 526 | |
| 527 | if (params->cipher) |
| 528 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, |
| 529 | params->cipher); |
| 530 | |
| 531 | return; |
| 532 | nla_put_failure: |
| 533 | cookie->error = 1; |
| 534 | } |
| 535 | |
| 536 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) |
| 537 | { |
| 538 | struct cfg80211_registered_device *drv; |
| 539 | int err; |
| 540 | struct net_device *dev; |
| 541 | u8 key_idx = 0; |
| 542 | u8 *mac_addr = NULL; |
| 543 | struct get_key_cookie cookie = { |
| 544 | .error = 0, |
| 545 | }; |
| 546 | void *hdr; |
| 547 | struct sk_buff *msg; |
| 548 | |
| 549 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
| 550 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| 551 | |
| 552 | if (key_idx > 3) |
| 553 | return -EINVAL; |
| 554 | |
| 555 | if (info->attrs[NL80211_ATTR_MAC]) |
| 556 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 557 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 558 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 559 | if (err) |
| 560 | return err; |
| 561 | |
| 562 | if (!drv->ops->get_key) { |
| 563 | err = -EOPNOTSUPP; |
| 564 | goto out; |
| 565 | } |
| 566 | |
| 567 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 568 | if (!msg) { |
| 569 | err = -ENOMEM; |
| 570 | goto out; |
| 571 | } |
| 572 | |
| 573 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
| 574 | NL80211_CMD_NEW_KEY); |
| 575 | |
| 576 | if (IS_ERR(hdr)) { |
| 577 | err = PTR_ERR(hdr); |
| 578 | goto out; |
| 579 | } |
| 580 | |
| 581 | cookie.msg = msg; |
| 582 | |
| 583 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); |
| 584 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); |
| 585 | if (mac_addr) |
| 586 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); |
| 587 | |
| 588 | rtnl_lock(); |
| 589 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, |
| 590 | &cookie, get_key_callback); |
| 591 | rtnl_unlock(); |
| 592 | |
| 593 | if (err) |
| 594 | goto out; |
| 595 | |
| 596 | if (cookie.error) |
| 597 | goto nla_put_failure; |
| 598 | |
| 599 | genlmsg_end(msg, hdr); |
| 600 | err = genlmsg_unicast(msg, info->snd_pid); |
| 601 | goto out; |
| 602 | |
| 603 | nla_put_failure: |
| 604 | err = -ENOBUFS; |
| 605 | nlmsg_free(msg); |
| 606 | out: |
| 607 | cfg80211_put_dev(drv); |
| 608 | dev_put(dev); |
| 609 | return err; |
| 610 | } |
| 611 | |
| 612 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) |
| 613 | { |
| 614 | struct cfg80211_registered_device *drv; |
| 615 | int err; |
| 616 | struct net_device *dev; |
| 617 | u8 key_idx; |
| 618 | |
| 619 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) |
| 620 | return -EINVAL; |
| 621 | |
| 622 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| 623 | |
| 624 | if (key_idx > 3) |
| 625 | return -EINVAL; |
| 626 | |
| 627 | /* currently only support setting default key */ |
| 628 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
| 629 | return -EINVAL; |
| 630 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 631 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 632 | if (err) |
| 633 | return err; |
| 634 | |
| 635 | if (!drv->ops->set_default_key) { |
| 636 | err = -EOPNOTSUPP; |
| 637 | goto out; |
| 638 | } |
| 639 | |
| 640 | rtnl_lock(); |
| 641 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); |
| 642 | rtnl_unlock(); |
| 643 | |
| 644 | out: |
| 645 | cfg80211_put_dev(drv); |
| 646 | dev_put(dev); |
| 647 | return err; |
| 648 | } |
| 649 | |
| 650 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) |
| 651 | { |
| 652 | struct cfg80211_registered_device *drv; |
| 653 | int err; |
| 654 | struct net_device *dev; |
| 655 | struct key_params params; |
| 656 | u8 key_idx = 0; |
| 657 | u8 *mac_addr = NULL; |
| 658 | |
| 659 | memset(¶ms, 0, sizeof(params)); |
| 660 | |
| 661 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) |
| 662 | return -EINVAL; |
| 663 | |
| 664 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { |
| 665 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); |
| 666 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); |
| 667 | } |
| 668 | |
| 669 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
| 670 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| 671 | |
| 672 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); |
| 673 | |
| 674 | if (info->attrs[NL80211_ATTR_MAC]) |
| 675 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 676 | |
| 677 | if (key_idx > 3) |
| 678 | return -EINVAL; |
| 679 | |
| 680 | /* |
| 681 | * Disallow pairwise keys with non-zero index unless it's WEP |
| 682 | * (because current deployments use pairwise WEP keys with |
| 683 | * non-zero indizes but 802.11i clearly specifies to use zero) |
| 684 | */ |
| 685 | if (mac_addr && key_idx && |
| 686 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && |
| 687 | params.cipher != WLAN_CIPHER_SUITE_WEP104) |
| 688 | return -EINVAL; |
| 689 | |
| 690 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ |
| 691 | switch (params.cipher) { |
| 692 | case WLAN_CIPHER_SUITE_WEP40: |
| 693 | if (params.key_len != 5) |
| 694 | return -EINVAL; |
| 695 | break; |
| 696 | case WLAN_CIPHER_SUITE_TKIP: |
| 697 | if (params.key_len != 32) |
| 698 | return -EINVAL; |
| 699 | break; |
| 700 | case WLAN_CIPHER_SUITE_CCMP: |
| 701 | if (params.key_len != 16) |
| 702 | return -EINVAL; |
| 703 | break; |
| 704 | case WLAN_CIPHER_SUITE_WEP104: |
| 705 | if (params.key_len != 13) |
| 706 | return -EINVAL; |
| 707 | break; |
| 708 | default: |
| 709 | return -EINVAL; |
| 710 | } |
| 711 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 712 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 713 | if (err) |
| 714 | return err; |
| 715 | |
| 716 | if (!drv->ops->add_key) { |
| 717 | err = -EOPNOTSUPP; |
| 718 | goto out; |
| 719 | } |
| 720 | |
| 721 | rtnl_lock(); |
| 722 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); |
| 723 | rtnl_unlock(); |
| 724 | |
| 725 | out: |
| 726 | cfg80211_put_dev(drv); |
| 727 | dev_put(dev); |
| 728 | return err; |
| 729 | } |
| 730 | |
| 731 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) |
| 732 | { |
| 733 | struct cfg80211_registered_device *drv; |
| 734 | int err; |
| 735 | struct net_device *dev; |
| 736 | u8 key_idx = 0; |
| 737 | u8 *mac_addr = NULL; |
| 738 | |
| 739 | if (info->attrs[NL80211_ATTR_KEY_IDX]) |
| 740 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); |
| 741 | |
| 742 | if (key_idx > 3) |
| 743 | return -EINVAL; |
| 744 | |
| 745 | if (info->attrs[NL80211_ATTR_MAC]) |
| 746 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 747 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 748 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 749 | if (err) |
| 750 | return err; |
| 751 | |
| 752 | if (!drv->ops->del_key) { |
| 753 | err = -EOPNOTSUPP; |
| 754 | goto out; |
| 755 | } |
| 756 | |
| 757 | rtnl_lock(); |
| 758 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); |
| 759 | rtnl_unlock(); |
| 760 | |
| 761 | out: |
| 762 | cfg80211_put_dev(drv); |
| 763 | dev_put(dev); |
| 764 | return err; |
| 765 | } |
| 766 | |
Johannes Berg | ed1b6cc | 2007-12-19 02:03:32 +0100 | [diff] [blame] | 767 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
| 768 | { |
| 769 | int (*call)(struct wiphy *wiphy, struct net_device *dev, |
| 770 | struct beacon_parameters *info); |
| 771 | struct cfg80211_registered_device *drv; |
| 772 | int err; |
| 773 | struct net_device *dev; |
| 774 | struct beacon_parameters params; |
| 775 | int haveinfo = 0; |
| 776 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 777 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | ed1b6cc | 2007-12-19 02:03:32 +0100 | [diff] [blame] | 778 | if (err) |
| 779 | return err; |
| 780 | |
| 781 | switch (info->genlhdr->cmd) { |
| 782 | case NL80211_CMD_NEW_BEACON: |
| 783 | /* these are required for NEW_BEACON */ |
| 784 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || |
| 785 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || |
| 786 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
| 787 | err = -EINVAL; |
| 788 | goto out; |
| 789 | } |
| 790 | |
| 791 | call = drv->ops->add_beacon; |
| 792 | break; |
| 793 | case NL80211_CMD_SET_BEACON: |
| 794 | call = drv->ops->set_beacon; |
| 795 | break; |
| 796 | default: |
| 797 | WARN_ON(1); |
| 798 | err = -EOPNOTSUPP; |
| 799 | goto out; |
| 800 | } |
| 801 | |
| 802 | if (!call) { |
| 803 | err = -EOPNOTSUPP; |
| 804 | goto out; |
| 805 | } |
| 806 | |
| 807 | memset(¶ms, 0, sizeof(params)); |
| 808 | |
| 809 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
| 810 | params.interval = |
| 811 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); |
| 812 | haveinfo = 1; |
| 813 | } |
| 814 | |
| 815 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { |
| 816 | params.dtim_period = |
| 817 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); |
| 818 | haveinfo = 1; |
| 819 | } |
| 820 | |
| 821 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
| 822 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
| 823 | params.head_len = |
| 824 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
| 825 | haveinfo = 1; |
| 826 | } |
| 827 | |
| 828 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { |
| 829 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
| 830 | params.tail_len = |
| 831 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
| 832 | haveinfo = 1; |
| 833 | } |
| 834 | |
| 835 | if (!haveinfo) { |
| 836 | err = -EINVAL; |
| 837 | goto out; |
| 838 | } |
| 839 | |
| 840 | rtnl_lock(); |
| 841 | err = call(&drv->wiphy, dev, ¶ms); |
| 842 | rtnl_unlock(); |
| 843 | |
| 844 | out: |
| 845 | cfg80211_put_dev(drv); |
| 846 | dev_put(dev); |
| 847 | return err; |
| 848 | } |
| 849 | |
| 850 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) |
| 851 | { |
| 852 | struct cfg80211_registered_device *drv; |
| 853 | int err; |
| 854 | struct net_device *dev; |
| 855 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 856 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | ed1b6cc | 2007-12-19 02:03:32 +0100 | [diff] [blame] | 857 | if (err) |
| 858 | return err; |
| 859 | |
| 860 | if (!drv->ops->del_beacon) { |
| 861 | err = -EOPNOTSUPP; |
| 862 | goto out; |
| 863 | } |
| 864 | |
| 865 | rtnl_lock(); |
| 866 | err = drv->ops->del_beacon(&drv->wiphy, dev); |
| 867 | rtnl_unlock(); |
| 868 | |
| 869 | out: |
| 870 | cfg80211_put_dev(drv); |
| 871 | dev_put(dev); |
| 872 | return err; |
| 873 | } |
| 874 | |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 875 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
| 876 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, |
| 877 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, |
| 878 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, |
| 879 | }; |
| 880 | |
| 881 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) |
| 882 | { |
| 883 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; |
| 884 | int flag; |
| 885 | |
| 886 | *staflags = 0; |
| 887 | |
| 888 | if (!nla) |
| 889 | return 0; |
| 890 | |
| 891 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, |
| 892 | nla, sta_flags_policy)) |
| 893 | return -EINVAL; |
| 894 | |
| 895 | *staflags = STATION_FLAG_CHANGED; |
| 896 | |
| 897 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) |
| 898 | if (flags[flag]) |
| 899 | *staflags |= (1<<flag); |
| 900 | |
| 901 | return 0; |
| 902 | } |
| 903 | |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 904 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
| 905 | int flags, struct net_device *dev, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 906 | u8 *mac_addr, struct station_info *sinfo) |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 907 | { |
| 908 | void *hdr; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 909 | struct nlattr *sinfoattr; |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 910 | |
| 911 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); |
| 912 | if (!hdr) |
| 913 | return -1; |
| 914 | |
| 915 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); |
| 916 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); |
| 917 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 918 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
| 919 | if (!sinfoattr) |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 920 | goto nla_put_failure; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 921 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
| 922 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, |
| 923 | sinfo->inactive_time); |
| 924 | if (sinfo->filled & STATION_INFO_RX_BYTES) |
| 925 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, |
| 926 | sinfo->rx_bytes); |
| 927 | if (sinfo->filled & STATION_INFO_TX_BYTES) |
| 928 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, |
| 929 | sinfo->tx_bytes); |
| 930 | if (sinfo->filled & STATION_INFO_LLID) |
| 931 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, |
| 932 | sinfo->llid); |
| 933 | if (sinfo->filled & STATION_INFO_PLID) |
| 934 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, |
| 935 | sinfo->plid); |
| 936 | if (sinfo->filled & STATION_INFO_PLINK_STATE) |
| 937 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, |
| 938 | sinfo->plink_state); |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 939 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 940 | nla_nest_end(msg, sinfoattr); |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 941 | |
| 942 | return genlmsg_end(msg, hdr); |
| 943 | |
| 944 | nla_put_failure: |
Thomas Graf | bc3ed28 | 2008-06-03 16:36:54 -0700 | [diff] [blame] | 945 | genlmsg_cancel(msg, hdr); |
| 946 | return -EMSGSIZE; |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 947 | } |
| 948 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 949 | static int nl80211_dump_station(struct sk_buff *skb, |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 950 | struct netlink_callback *cb) |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 951 | { |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 952 | struct station_info sinfo; |
| 953 | struct cfg80211_registered_device *dev; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 954 | struct net_device *netdev; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 955 | u8 mac_addr[ETH_ALEN]; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 956 | int ifidx = cb->args[0]; |
| 957 | int sta_idx = cb->args[1]; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 958 | int err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 959 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 960 | if (!ifidx) { |
| 961 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, |
| 962 | nl80211_fam.attrbuf, nl80211_fam.maxattr, |
| 963 | nl80211_policy); |
| 964 | if (err) |
| 965 | return err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 966 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 967 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
| 968 | return -EINVAL; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 969 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 970 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
| 971 | if (!ifidx) |
| 972 | return -EINVAL; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 973 | } |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 974 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 975 | netdev = dev_get_by_index(&init_net, ifidx); |
| 976 | if (!netdev) |
| 977 | return -ENODEV; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 978 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 979 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
| 980 | if (IS_ERR(dev)) { |
| 981 | err = PTR_ERR(dev); |
| 982 | goto out_put_netdev; |
| 983 | } |
| 984 | |
| 985 | if (!dev->ops->dump_station) { |
| 986 | err = -ENOSYS; |
| 987 | goto out_err; |
| 988 | } |
| 989 | |
| 990 | rtnl_lock(); |
| 991 | |
| 992 | while (1) { |
| 993 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, |
| 994 | mac_addr, &sinfo); |
| 995 | if (err == -ENOENT) |
| 996 | break; |
| 997 | if (err) |
| 998 | goto out_err_rtnl; |
| 999 | |
| 1000 | if (nl80211_send_station(skb, |
| 1001 | NETLINK_CB(cb->skb).pid, |
| 1002 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| 1003 | netdev, mac_addr, |
| 1004 | &sinfo) < 0) |
| 1005 | goto out; |
| 1006 | |
| 1007 | sta_idx++; |
| 1008 | } |
| 1009 | |
| 1010 | |
| 1011 | out: |
| 1012 | cb->args[1] = sta_idx; |
| 1013 | err = skb->len; |
| 1014 | out_err_rtnl: |
| 1015 | rtnl_unlock(); |
| 1016 | out_err: |
| 1017 | cfg80211_put_dev(dev); |
| 1018 | out_put_netdev: |
| 1019 | dev_put(netdev); |
| 1020 | |
| 1021 | return err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1022 | } |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1023 | |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1024 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
| 1025 | { |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1026 | struct cfg80211_registered_device *drv; |
| 1027 | int err; |
| 1028 | struct net_device *dev; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1029 | struct station_info sinfo; |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1030 | struct sk_buff *msg; |
| 1031 | u8 *mac_addr = NULL; |
| 1032 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1033 | memset(&sinfo, 0, sizeof(sinfo)); |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1034 | |
| 1035 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1036 | return -EINVAL; |
| 1037 | |
| 1038 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1039 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1040 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1041 | if (err) |
| 1042 | return err; |
| 1043 | |
| 1044 | if (!drv->ops->get_station) { |
| 1045 | err = -EOPNOTSUPP; |
| 1046 | goto out; |
| 1047 | } |
| 1048 | |
| 1049 | rtnl_lock(); |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1050 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1051 | rtnl_unlock(); |
| 1052 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1053 | if (err) |
| 1054 | goto out; |
| 1055 | |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1056 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 1057 | if (!msg) |
| 1058 | goto out; |
| 1059 | |
| 1060 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1061 | dev, mac_addr, &sinfo) < 0) |
Johannes Berg | fd5b74d | 2007-12-19 02:03:36 +0100 | [diff] [blame] | 1062 | goto out_free; |
| 1063 | |
| 1064 | err = genlmsg_unicast(msg, info->snd_pid); |
| 1065 | goto out; |
| 1066 | |
| 1067 | out_free: |
| 1068 | nlmsg_free(msg); |
| 1069 | |
| 1070 | out: |
| 1071 | cfg80211_put_dev(drv); |
| 1072 | dev_put(dev); |
| 1073 | return err; |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1074 | } |
| 1075 | |
| 1076 | /* |
| 1077 | * Get vlan interface making sure it is on the right wiphy. |
| 1078 | */ |
| 1079 | static int get_vlan(struct nlattr *vlanattr, |
| 1080 | struct cfg80211_registered_device *rdev, |
| 1081 | struct net_device **vlan) |
| 1082 | { |
| 1083 | *vlan = NULL; |
| 1084 | |
| 1085 | if (vlanattr) { |
| 1086 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); |
| 1087 | if (!*vlan) |
| 1088 | return -ENODEV; |
| 1089 | if (!(*vlan)->ieee80211_ptr) |
| 1090 | return -EINVAL; |
| 1091 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) |
| 1092 | return -EINVAL; |
| 1093 | } |
| 1094 | return 0; |
| 1095 | } |
| 1096 | |
| 1097 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
| 1098 | { |
| 1099 | struct cfg80211_registered_device *drv; |
| 1100 | int err; |
| 1101 | struct net_device *dev; |
| 1102 | struct station_parameters params; |
| 1103 | u8 *mac_addr = NULL; |
| 1104 | |
| 1105 | memset(¶ms, 0, sizeof(params)); |
| 1106 | |
| 1107 | params.listen_interval = -1; |
| 1108 | |
| 1109 | if (info->attrs[NL80211_ATTR_STA_AID]) |
| 1110 | return -EINVAL; |
| 1111 | |
| 1112 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1113 | return -EINVAL; |
| 1114 | |
| 1115 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1116 | |
| 1117 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { |
| 1118 | params.supported_rates = |
| 1119 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| 1120 | params.supported_rates_len = |
| 1121 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| 1122 | } |
| 1123 | |
| 1124 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
| 1125 | params.listen_interval = |
| 1126 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); |
| 1127 | |
| 1128 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
| 1129 | ¶ms.station_flags)) |
| 1130 | return -EINVAL; |
| 1131 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1132 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
| 1133 | params.plink_action = |
| 1134 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
| 1135 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1136 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1137 | if (err) |
| 1138 | return err; |
| 1139 | |
| 1140 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); |
| 1141 | if (err) |
| 1142 | goto out; |
| 1143 | |
| 1144 | if (!drv->ops->change_station) { |
| 1145 | err = -EOPNOTSUPP; |
| 1146 | goto out; |
| 1147 | } |
| 1148 | |
| 1149 | rtnl_lock(); |
| 1150 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); |
| 1151 | rtnl_unlock(); |
| 1152 | |
| 1153 | out: |
| 1154 | if (params.vlan) |
| 1155 | dev_put(params.vlan); |
| 1156 | cfg80211_put_dev(drv); |
| 1157 | dev_put(dev); |
| 1158 | return err; |
| 1159 | } |
| 1160 | |
| 1161 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
| 1162 | { |
| 1163 | struct cfg80211_registered_device *drv; |
| 1164 | int err; |
| 1165 | struct net_device *dev; |
| 1166 | struct station_parameters params; |
| 1167 | u8 *mac_addr = NULL; |
| 1168 | |
| 1169 | memset(¶ms, 0, sizeof(params)); |
| 1170 | |
| 1171 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1172 | return -EINVAL; |
| 1173 | |
| 1174 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
| 1175 | return -EINVAL; |
| 1176 | |
| 1177 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
| 1178 | return -EINVAL; |
| 1179 | |
| 1180 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) |
| 1181 | return -EINVAL; |
| 1182 | |
| 1183 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1184 | params.supported_rates = |
| 1185 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| 1186 | params.supported_rates_len = |
| 1187 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); |
| 1188 | params.listen_interval = |
| 1189 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); |
Johannes Berg | 16f2e85 | 2008-04-07 14:35:46 +0200 | [diff] [blame] | 1190 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1191 | |
| 1192 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
| 1193 | ¶ms.station_flags)) |
| 1194 | return -EINVAL; |
| 1195 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1196 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1197 | if (err) |
| 1198 | return err; |
| 1199 | |
| 1200 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); |
| 1201 | if (err) |
| 1202 | goto out; |
| 1203 | |
| 1204 | if (!drv->ops->add_station) { |
| 1205 | err = -EOPNOTSUPP; |
| 1206 | goto out; |
| 1207 | } |
| 1208 | |
| 1209 | rtnl_lock(); |
| 1210 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); |
| 1211 | rtnl_unlock(); |
| 1212 | |
| 1213 | out: |
| 1214 | if (params.vlan) |
| 1215 | dev_put(params.vlan); |
| 1216 | cfg80211_put_dev(drv); |
| 1217 | dev_put(dev); |
| 1218 | return err; |
| 1219 | } |
| 1220 | |
| 1221 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) |
| 1222 | { |
| 1223 | struct cfg80211_registered_device *drv; |
| 1224 | int err; |
| 1225 | struct net_device *dev; |
| 1226 | u8 *mac_addr = NULL; |
| 1227 | |
| 1228 | if (info->attrs[NL80211_ATTR_MAC]) |
| 1229 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1230 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1231 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1232 | if (err) |
| 1233 | return err; |
| 1234 | |
| 1235 | if (!drv->ops->del_station) { |
| 1236 | err = -EOPNOTSUPP; |
| 1237 | goto out; |
| 1238 | } |
| 1239 | |
| 1240 | rtnl_lock(); |
| 1241 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); |
| 1242 | rtnl_unlock(); |
| 1243 | |
| 1244 | out: |
| 1245 | cfg80211_put_dev(drv); |
| 1246 | dev_put(dev); |
| 1247 | return err; |
| 1248 | } |
| 1249 | |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1250 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
| 1251 | int flags, struct net_device *dev, |
| 1252 | u8 *dst, u8 *next_hop, |
| 1253 | struct mpath_info *pinfo) |
| 1254 | { |
| 1255 | void *hdr; |
| 1256 | struct nlattr *pinfoattr; |
| 1257 | |
| 1258 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); |
| 1259 | if (!hdr) |
| 1260 | return -1; |
| 1261 | |
| 1262 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); |
| 1263 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); |
| 1264 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); |
| 1265 | |
| 1266 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
| 1267 | if (!pinfoattr) |
| 1268 | goto nla_put_failure; |
| 1269 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) |
| 1270 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, |
| 1271 | pinfo->frame_qlen); |
| 1272 | if (pinfo->filled & MPATH_INFO_DSN) |
| 1273 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, |
| 1274 | pinfo->dsn); |
| 1275 | if (pinfo->filled & MPATH_INFO_METRIC) |
| 1276 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, |
| 1277 | pinfo->metric); |
| 1278 | if (pinfo->filled & MPATH_INFO_EXPTIME) |
| 1279 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, |
| 1280 | pinfo->exptime); |
| 1281 | if (pinfo->filled & MPATH_INFO_FLAGS) |
| 1282 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, |
| 1283 | pinfo->flags); |
| 1284 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) |
| 1285 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, |
| 1286 | pinfo->discovery_timeout); |
| 1287 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) |
| 1288 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, |
| 1289 | pinfo->discovery_retries); |
| 1290 | |
| 1291 | nla_nest_end(msg, pinfoattr); |
| 1292 | |
| 1293 | return genlmsg_end(msg, hdr); |
| 1294 | |
| 1295 | nla_put_failure: |
Thomas Graf | bc3ed28 | 2008-06-03 16:36:54 -0700 | [diff] [blame] | 1296 | genlmsg_cancel(msg, hdr); |
| 1297 | return -EMSGSIZE; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1298 | } |
| 1299 | |
| 1300 | static int nl80211_dump_mpath(struct sk_buff *skb, |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1301 | struct netlink_callback *cb) |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1302 | { |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1303 | struct mpath_info pinfo; |
| 1304 | struct cfg80211_registered_device *dev; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1305 | struct net_device *netdev; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1306 | u8 dst[ETH_ALEN]; |
| 1307 | u8 next_hop[ETH_ALEN]; |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1308 | int ifidx = cb->args[0]; |
| 1309 | int path_idx = cb->args[1]; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1310 | int err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1311 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1312 | if (!ifidx) { |
| 1313 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, |
| 1314 | nl80211_fam.attrbuf, nl80211_fam.maxattr, |
| 1315 | nl80211_policy); |
| 1316 | if (err) |
| 1317 | return err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1318 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1319 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
| 1320 | return -EINVAL; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1321 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1322 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
| 1323 | if (!ifidx) |
| 1324 | return -EINVAL; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1325 | } |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1326 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1327 | netdev = dev_get_by_index(&init_net, ifidx); |
| 1328 | if (!netdev) |
| 1329 | return -ENODEV; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1330 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1331 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
| 1332 | if (IS_ERR(dev)) { |
| 1333 | err = PTR_ERR(dev); |
| 1334 | goto out_put_netdev; |
| 1335 | } |
| 1336 | |
| 1337 | if (!dev->ops->dump_mpath) { |
| 1338 | err = -ENOSYS; |
| 1339 | goto out_err; |
| 1340 | } |
| 1341 | |
| 1342 | rtnl_lock(); |
| 1343 | |
| 1344 | while (1) { |
| 1345 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, |
| 1346 | dst, next_hop, &pinfo); |
| 1347 | if (err == -ENOENT) |
| 1348 | break; |
| 1349 | if (err) |
| 1350 | goto out_err_rtnl; |
| 1351 | |
| 1352 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
| 1353 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| 1354 | netdev, dst, next_hop, |
| 1355 | &pinfo) < 0) |
| 1356 | goto out; |
| 1357 | |
| 1358 | path_idx++; |
| 1359 | } |
| 1360 | |
| 1361 | |
| 1362 | out: |
| 1363 | cb->args[1] = path_idx; |
| 1364 | err = skb->len; |
| 1365 | out_err_rtnl: |
| 1366 | rtnl_unlock(); |
| 1367 | out_err: |
| 1368 | cfg80211_put_dev(dev); |
| 1369 | out_put_netdev: |
| 1370 | dev_put(netdev); |
| 1371 | |
| 1372 | return err; |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1373 | } |
| 1374 | |
| 1375 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) |
| 1376 | { |
| 1377 | struct cfg80211_registered_device *drv; |
| 1378 | int err; |
| 1379 | struct net_device *dev; |
| 1380 | struct mpath_info pinfo; |
| 1381 | struct sk_buff *msg; |
| 1382 | u8 *dst = NULL; |
| 1383 | u8 next_hop[ETH_ALEN]; |
| 1384 | |
| 1385 | memset(&pinfo, 0, sizeof(pinfo)); |
| 1386 | |
| 1387 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1388 | return -EINVAL; |
| 1389 | |
| 1390 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1391 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1392 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1393 | if (err) |
| 1394 | return err; |
| 1395 | |
| 1396 | if (!drv->ops->get_mpath) { |
| 1397 | err = -EOPNOTSUPP; |
| 1398 | goto out; |
| 1399 | } |
| 1400 | |
| 1401 | rtnl_lock(); |
| 1402 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); |
| 1403 | rtnl_unlock(); |
| 1404 | |
| 1405 | if (err) |
| 1406 | goto out; |
| 1407 | |
| 1408 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 1409 | if (!msg) |
| 1410 | goto out; |
| 1411 | |
| 1412 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, |
| 1413 | dev, dst, next_hop, &pinfo) < 0) |
| 1414 | goto out_free; |
| 1415 | |
| 1416 | err = genlmsg_unicast(msg, info->snd_pid); |
| 1417 | goto out; |
| 1418 | |
| 1419 | out_free: |
| 1420 | nlmsg_free(msg); |
| 1421 | |
| 1422 | out: |
| 1423 | cfg80211_put_dev(drv); |
| 1424 | dev_put(dev); |
| 1425 | return err; |
| 1426 | } |
| 1427 | |
| 1428 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) |
| 1429 | { |
| 1430 | struct cfg80211_registered_device *drv; |
| 1431 | int err; |
| 1432 | struct net_device *dev; |
| 1433 | u8 *dst = NULL; |
| 1434 | u8 *next_hop = NULL; |
| 1435 | |
| 1436 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1437 | return -EINVAL; |
| 1438 | |
| 1439 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
| 1440 | return -EINVAL; |
| 1441 | |
| 1442 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1443 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
| 1444 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1445 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1446 | if (err) |
| 1447 | return err; |
| 1448 | |
| 1449 | if (!drv->ops->change_mpath) { |
| 1450 | err = -EOPNOTSUPP; |
| 1451 | goto out; |
| 1452 | } |
| 1453 | |
| 1454 | rtnl_lock(); |
| 1455 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); |
| 1456 | rtnl_unlock(); |
| 1457 | |
| 1458 | out: |
| 1459 | cfg80211_put_dev(drv); |
| 1460 | dev_put(dev); |
| 1461 | return err; |
| 1462 | } |
| 1463 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
| 1464 | { |
| 1465 | struct cfg80211_registered_device *drv; |
| 1466 | int err; |
| 1467 | struct net_device *dev; |
| 1468 | u8 *dst = NULL; |
| 1469 | u8 *next_hop = NULL; |
| 1470 | |
| 1471 | if (!info->attrs[NL80211_ATTR_MAC]) |
| 1472 | return -EINVAL; |
| 1473 | |
| 1474 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) |
| 1475 | return -EINVAL; |
| 1476 | |
| 1477 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1478 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); |
| 1479 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1480 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1481 | if (err) |
| 1482 | return err; |
| 1483 | |
| 1484 | if (!drv->ops->add_mpath) { |
| 1485 | err = -EOPNOTSUPP; |
| 1486 | goto out; |
| 1487 | } |
| 1488 | |
| 1489 | rtnl_lock(); |
| 1490 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); |
| 1491 | rtnl_unlock(); |
| 1492 | |
| 1493 | out: |
| 1494 | cfg80211_put_dev(drv); |
| 1495 | dev_put(dev); |
| 1496 | return err; |
| 1497 | } |
| 1498 | |
| 1499 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) |
| 1500 | { |
| 1501 | struct cfg80211_registered_device *drv; |
| 1502 | int err; |
| 1503 | struct net_device *dev; |
| 1504 | u8 *dst = NULL; |
| 1505 | |
| 1506 | if (info->attrs[NL80211_ATTR_MAC]) |
| 1507 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); |
| 1508 | |
Johannes Berg | bba95fe | 2008-07-29 13:22:51 +0200 | [diff] [blame] | 1509 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1510 | if (err) |
| 1511 | return err; |
| 1512 | |
| 1513 | if (!drv->ops->del_mpath) { |
| 1514 | err = -EOPNOTSUPP; |
| 1515 | goto out; |
| 1516 | } |
| 1517 | |
| 1518 | rtnl_lock(); |
| 1519 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); |
| 1520 | rtnl_unlock(); |
| 1521 | |
| 1522 | out: |
| 1523 | cfg80211_put_dev(drv); |
| 1524 | dev_put(dev); |
| 1525 | return err; |
| 1526 | } |
| 1527 | |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 1528 | static struct genl_ops nl80211_ops[] = { |
| 1529 | { |
| 1530 | .cmd = NL80211_CMD_GET_WIPHY, |
| 1531 | .doit = nl80211_get_wiphy, |
| 1532 | .dumpit = nl80211_dump_wiphy, |
| 1533 | .policy = nl80211_policy, |
| 1534 | /* can be retrieved by unprivileged users */ |
| 1535 | }, |
| 1536 | { |
| 1537 | .cmd = NL80211_CMD_SET_WIPHY, |
| 1538 | .doit = nl80211_set_wiphy, |
| 1539 | .policy = nl80211_policy, |
| 1540 | .flags = GENL_ADMIN_PERM, |
| 1541 | }, |
| 1542 | { |
| 1543 | .cmd = NL80211_CMD_GET_INTERFACE, |
| 1544 | .doit = nl80211_get_interface, |
| 1545 | .dumpit = nl80211_dump_interface, |
| 1546 | .policy = nl80211_policy, |
| 1547 | /* can be retrieved by unprivileged users */ |
| 1548 | }, |
| 1549 | { |
| 1550 | .cmd = NL80211_CMD_SET_INTERFACE, |
| 1551 | .doit = nl80211_set_interface, |
| 1552 | .policy = nl80211_policy, |
| 1553 | .flags = GENL_ADMIN_PERM, |
| 1554 | }, |
| 1555 | { |
| 1556 | .cmd = NL80211_CMD_NEW_INTERFACE, |
| 1557 | .doit = nl80211_new_interface, |
| 1558 | .policy = nl80211_policy, |
| 1559 | .flags = GENL_ADMIN_PERM, |
| 1560 | }, |
| 1561 | { |
| 1562 | .cmd = NL80211_CMD_DEL_INTERFACE, |
| 1563 | .doit = nl80211_del_interface, |
| 1564 | .policy = nl80211_policy, |
| 1565 | .flags = GENL_ADMIN_PERM, |
| 1566 | }, |
Johannes Berg | 41ade00 | 2007-12-19 02:03:29 +0100 | [diff] [blame] | 1567 | { |
| 1568 | .cmd = NL80211_CMD_GET_KEY, |
| 1569 | .doit = nl80211_get_key, |
| 1570 | .policy = nl80211_policy, |
| 1571 | .flags = GENL_ADMIN_PERM, |
| 1572 | }, |
| 1573 | { |
| 1574 | .cmd = NL80211_CMD_SET_KEY, |
| 1575 | .doit = nl80211_set_key, |
| 1576 | .policy = nl80211_policy, |
| 1577 | .flags = GENL_ADMIN_PERM, |
| 1578 | }, |
| 1579 | { |
| 1580 | .cmd = NL80211_CMD_NEW_KEY, |
| 1581 | .doit = nl80211_new_key, |
| 1582 | .policy = nl80211_policy, |
| 1583 | .flags = GENL_ADMIN_PERM, |
| 1584 | }, |
| 1585 | { |
| 1586 | .cmd = NL80211_CMD_DEL_KEY, |
| 1587 | .doit = nl80211_del_key, |
| 1588 | .policy = nl80211_policy, |
| 1589 | .flags = GENL_ADMIN_PERM, |
| 1590 | }, |
Johannes Berg | ed1b6cc | 2007-12-19 02:03:32 +0100 | [diff] [blame] | 1591 | { |
| 1592 | .cmd = NL80211_CMD_SET_BEACON, |
| 1593 | .policy = nl80211_policy, |
| 1594 | .flags = GENL_ADMIN_PERM, |
| 1595 | .doit = nl80211_addset_beacon, |
| 1596 | }, |
| 1597 | { |
| 1598 | .cmd = NL80211_CMD_NEW_BEACON, |
| 1599 | .policy = nl80211_policy, |
| 1600 | .flags = GENL_ADMIN_PERM, |
| 1601 | .doit = nl80211_addset_beacon, |
| 1602 | }, |
| 1603 | { |
| 1604 | .cmd = NL80211_CMD_DEL_BEACON, |
| 1605 | .policy = nl80211_policy, |
| 1606 | .flags = GENL_ADMIN_PERM, |
| 1607 | .doit = nl80211_del_beacon, |
| 1608 | }, |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1609 | { |
| 1610 | .cmd = NL80211_CMD_GET_STATION, |
| 1611 | .doit = nl80211_get_station, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1612 | .dumpit = nl80211_dump_station, |
Johannes Berg | 5727ef1 | 2007-12-19 02:03:34 +0100 | [diff] [blame] | 1613 | .policy = nl80211_policy, |
| 1614 | .flags = GENL_ADMIN_PERM, |
| 1615 | }, |
| 1616 | { |
| 1617 | .cmd = NL80211_CMD_SET_STATION, |
| 1618 | .doit = nl80211_set_station, |
| 1619 | .policy = nl80211_policy, |
| 1620 | .flags = GENL_ADMIN_PERM, |
| 1621 | }, |
| 1622 | { |
| 1623 | .cmd = NL80211_CMD_NEW_STATION, |
| 1624 | .doit = nl80211_new_station, |
| 1625 | .policy = nl80211_policy, |
| 1626 | .flags = GENL_ADMIN_PERM, |
| 1627 | }, |
| 1628 | { |
| 1629 | .cmd = NL80211_CMD_DEL_STATION, |
| 1630 | .doit = nl80211_del_station, |
| 1631 | .policy = nl80211_policy, |
| 1632 | .flags = GENL_ADMIN_PERM, |
| 1633 | }, |
Luis Carlos Cobo | 2ec600d | 2008-02-23 15:17:06 +0100 | [diff] [blame] | 1634 | { |
| 1635 | .cmd = NL80211_CMD_GET_MPATH, |
| 1636 | .doit = nl80211_get_mpath, |
| 1637 | .dumpit = nl80211_dump_mpath, |
| 1638 | .policy = nl80211_policy, |
| 1639 | .flags = GENL_ADMIN_PERM, |
| 1640 | }, |
| 1641 | { |
| 1642 | .cmd = NL80211_CMD_SET_MPATH, |
| 1643 | .doit = nl80211_set_mpath, |
| 1644 | .policy = nl80211_policy, |
| 1645 | .flags = GENL_ADMIN_PERM, |
| 1646 | }, |
| 1647 | { |
| 1648 | .cmd = NL80211_CMD_NEW_MPATH, |
| 1649 | .doit = nl80211_new_mpath, |
| 1650 | .policy = nl80211_policy, |
| 1651 | .flags = GENL_ADMIN_PERM, |
| 1652 | }, |
| 1653 | { |
| 1654 | .cmd = NL80211_CMD_DEL_MPATH, |
| 1655 | .doit = nl80211_del_mpath, |
| 1656 | .policy = nl80211_policy, |
| 1657 | .flags = GENL_ADMIN_PERM, |
| 1658 | }, |
Johannes Berg | 5568296 | 2007-09-20 13:09:35 -0400 | [diff] [blame] | 1659 | }; |
| 1660 | |
| 1661 | /* multicast groups */ |
| 1662 | static struct genl_multicast_group nl80211_config_mcgrp = { |
| 1663 | .name = "config", |
| 1664 | }; |
| 1665 | |
| 1666 | /* notification functions */ |
| 1667 | |
| 1668 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) |
| 1669 | { |
| 1670 | struct sk_buff *msg; |
| 1671 | |
| 1672 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
| 1673 | if (!msg) |
| 1674 | return; |
| 1675 | |
| 1676 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { |
| 1677 | nlmsg_free(msg); |
| 1678 | return; |
| 1679 | } |
| 1680 | |
| 1681 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); |
| 1682 | } |
| 1683 | |
| 1684 | /* initialisation/exit functions */ |
| 1685 | |
| 1686 | int nl80211_init(void) |
| 1687 | { |
| 1688 | int err, i; |
| 1689 | |
| 1690 | err = genl_register_family(&nl80211_fam); |
| 1691 | if (err) |
| 1692 | return err; |
| 1693 | |
| 1694 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { |
| 1695 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); |
| 1696 | if (err) |
| 1697 | goto err_out; |
| 1698 | } |
| 1699 | |
| 1700 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
| 1701 | if (err) |
| 1702 | goto err_out; |
| 1703 | |
| 1704 | return 0; |
| 1705 | err_out: |
| 1706 | genl_unregister_family(&nl80211_fam); |
| 1707 | return err; |
| 1708 | } |
| 1709 | |
| 1710 | void nl80211_exit(void) |
| 1711 | { |
| 1712 | genl_unregister_family(&nl80211_fam); |
| 1713 | } |