Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Implement cfg80211 ("iw") support. |
| 3 | * |
| 4 | * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany |
| 5 | * Holger Schurig <hs4233@mail.mn-solutions.de> |
| 6 | * |
| 7 | */ |
| 8 | |
Joe Perches | 0e4e06a | 2011-05-02 16:49:14 -0700 | [diff] [blame] | 9 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 10 | |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 11 | #include <linux/hardirq.h> |
Andrew Morton | 241a6a5 | 2010-08-10 18:01:06 -0700 | [diff] [blame] | 12 | #include <linux/sched.h> |
| 13 | #include <linux/wait.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 14 | #include <linux/slab.h> |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 15 | #include <linux/ieee80211.h> |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 16 | #include <net/cfg80211.h> |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 17 | #include <asm/unaligned.h> |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 18 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 19 | #include "decl.h" |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 20 | #include "cfg.h" |
| 21 | #include "cmd.h" |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 22 | #include "mesh.h" |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 23 | |
| 24 | |
| 25 | #define CHAN2G(_channel, _freq, _flags) { \ |
| 26 | .band = IEEE80211_BAND_2GHZ, \ |
| 27 | .center_freq = (_freq), \ |
| 28 | .hw_value = (_channel), \ |
| 29 | .flags = (_flags), \ |
| 30 | .max_antenna_gain = 0, \ |
| 31 | .max_power = 30, \ |
| 32 | } |
| 33 | |
| 34 | static struct ieee80211_channel lbs_2ghz_channels[] = { |
| 35 | CHAN2G(1, 2412, 0), |
| 36 | CHAN2G(2, 2417, 0), |
| 37 | CHAN2G(3, 2422, 0), |
| 38 | CHAN2G(4, 2427, 0), |
| 39 | CHAN2G(5, 2432, 0), |
| 40 | CHAN2G(6, 2437, 0), |
| 41 | CHAN2G(7, 2442, 0), |
| 42 | CHAN2G(8, 2447, 0), |
| 43 | CHAN2G(9, 2452, 0), |
| 44 | CHAN2G(10, 2457, 0), |
| 45 | CHAN2G(11, 2462, 0), |
| 46 | CHAN2G(12, 2467, 0), |
| 47 | CHAN2G(13, 2472, 0), |
| 48 | CHAN2G(14, 2484, 0), |
| 49 | }; |
| 50 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 51 | #define RATETAB_ENT(_rate, _hw_value, _flags) { \ |
| 52 | .bitrate = (_rate), \ |
| 53 | .hw_value = (_hw_value), \ |
| 54 | .flags = (_flags), \ |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 58 | /* Table 6 in section 3.2.1.1 */ |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 59 | static struct ieee80211_rate lbs_rates[] = { |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 60 | RATETAB_ENT(10, 0, 0), |
| 61 | RATETAB_ENT(20, 1, 0), |
| 62 | RATETAB_ENT(55, 2, 0), |
| 63 | RATETAB_ENT(110, 3, 0), |
| 64 | RATETAB_ENT(60, 9, 0), |
| 65 | RATETAB_ENT(90, 6, 0), |
| 66 | RATETAB_ENT(120, 7, 0), |
| 67 | RATETAB_ENT(180, 8, 0), |
| 68 | RATETAB_ENT(240, 9, 0), |
| 69 | RATETAB_ENT(360, 10, 0), |
| 70 | RATETAB_ENT(480, 11, 0), |
| 71 | RATETAB_ENT(540, 12, 0), |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 72 | }; |
| 73 | |
| 74 | static struct ieee80211_supported_band lbs_band_2ghz = { |
| 75 | .channels = lbs_2ghz_channels, |
| 76 | .n_channels = ARRAY_SIZE(lbs_2ghz_channels), |
| 77 | .bitrates = lbs_rates, |
| 78 | .n_bitrates = ARRAY_SIZE(lbs_rates), |
| 79 | }; |
| 80 | |
| 81 | |
| 82 | static const u32 cipher_suites[] = { |
| 83 | WLAN_CIPHER_SUITE_WEP40, |
| 84 | WLAN_CIPHER_SUITE_WEP104, |
| 85 | WLAN_CIPHER_SUITE_TKIP, |
| 86 | WLAN_CIPHER_SUITE_CCMP, |
| 87 | }; |
| 88 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 89 | /* Time to stay on the channel */ |
| 90 | #define LBS_DWELL_PASSIVE 100 |
| 91 | #define LBS_DWELL_ACTIVE 40 |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 92 | |
| 93 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 94 | /*************************************************************************** |
| 95 | * Misc utility functions |
| 96 | * |
| 97 | * TLVs are Marvell specific. They are very similar to IEs, they have the |
| 98 | * same structure: type, length, data*. The only difference: for IEs, the |
| 99 | * type and length are u8, but for TLVs they're __le16. |
| 100 | */ |
| 101 | |
| 102 | /* |
| 103 | * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1 |
| 104 | * in the firmware spec |
| 105 | */ |
| 106 | static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type) |
| 107 | { |
| 108 | int ret = -ENOTSUPP; |
| 109 | |
| 110 | switch (auth_type) { |
| 111 | case NL80211_AUTHTYPE_OPEN_SYSTEM: |
| 112 | case NL80211_AUTHTYPE_SHARED_KEY: |
| 113 | ret = auth_type; |
| 114 | break; |
| 115 | case NL80211_AUTHTYPE_AUTOMATIC: |
| 116 | ret = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| 117 | break; |
| 118 | case NL80211_AUTHTYPE_NETWORK_EAP: |
| 119 | ret = 0x80; |
| 120 | break; |
| 121 | default: |
| 122 | /* silence compiler */ |
| 123 | break; |
| 124 | } |
| 125 | return ret; |
| 126 | } |
| 127 | |
| 128 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 129 | /* |
| 130 | * Various firmware commands need the list of supported rates, but with |
| 131 | * the hight-bit set for basic rates |
| 132 | */ |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 133 | static int lbs_add_rates(u8 *rates) |
| 134 | { |
| 135 | size_t i; |
| 136 | |
| 137 | for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { |
| 138 | u8 rate = lbs_rates[i].bitrate / 5; |
| 139 | if (rate == 0x02 || rate == 0x04 || |
| 140 | rate == 0x0b || rate == 0x16) |
| 141 | rate |= 0x80; |
| 142 | rates[i] = rate; |
| 143 | } |
| 144 | return ARRAY_SIZE(lbs_rates); |
| 145 | } |
| 146 | |
| 147 | |
| 148 | /*************************************************************************** |
| 149 | * TLV utility functions |
| 150 | * |
| 151 | * TLVs are Marvell specific. They are very similar to IEs, they have the |
| 152 | * same structure: type, length, data*. The only difference: for IEs, the |
| 153 | * type and length are u8, but for TLVs they're __le16. |
| 154 | */ |
| 155 | |
| 156 | |
| 157 | /* |
| 158 | * Add ssid TLV |
| 159 | */ |
| 160 | #define LBS_MAX_SSID_TLV_SIZE \ |
| 161 | (sizeof(struct mrvl_ie_header) \ |
| 162 | + IEEE80211_MAX_SSID_LEN) |
| 163 | |
| 164 | static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len) |
| 165 | { |
| 166 | struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv; |
| 167 | |
| 168 | /* |
| 169 | * TLV-ID SSID 00 00 |
| 170 | * length 06 00 |
| 171 | * ssid 4d 4e 54 45 53 54 |
| 172 | */ |
| 173 | ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID); |
| 174 | ssid_tlv->header.len = cpu_to_le16(ssid_len); |
| 175 | memcpy(ssid_tlv->ssid, ssid, ssid_len); |
| 176 | return sizeof(ssid_tlv->header) + ssid_len; |
| 177 | } |
| 178 | |
| 179 | |
| 180 | /* |
| 181 | * Add channel list TLV (section 8.4.2) |
| 182 | * |
| 183 | * Actual channel data comes from priv->wdev->wiphy->channels. |
| 184 | */ |
| 185 | #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \ |
| 186 | (sizeof(struct mrvl_ie_header) \ |
| 187 | + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset))) |
| 188 | |
| 189 | static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv, |
| 190 | int last_channel, int active_scan) |
| 191 | { |
| 192 | int chanscanparamsize = sizeof(struct chanscanparamset) * |
| 193 | (last_channel - priv->scan_channel); |
| 194 | |
| 195 | struct mrvl_ie_header *header = (void *) tlv; |
| 196 | |
| 197 | /* |
| 198 | * TLV-ID CHANLIST 01 01 |
| 199 | * length 0e 00 |
| 200 | * channel 00 01 00 00 00 64 00 |
| 201 | * radio type 00 |
| 202 | * channel 01 |
| 203 | * scan type 00 |
| 204 | * min scan time 00 00 |
| 205 | * max scan time 64 00 |
| 206 | * channel 2 00 02 00 00 00 64 00 |
| 207 | * |
| 208 | */ |
| 209 | |
| 210 | header->type = cpu_to_le16(TLV_TYPE_CHANLIST); |
| 211 | header->len = cpu_to_le16(chanscanparamsize); |
| 212 | tlv += sizeof(struct mrvl_ie_header); |
| 213 | |
| 214 | /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel, |
| 215 | last_channel); */ |
| 216 | memset(tlv, 0, chanscanparamsize); |
| 217 | |
| 218 | while (priv->scan_channel < last_channel) { |
| 219 | struct chanscanparamset *param = (void *) tlv; |
| 220 | |
| 221 | param->radiotype = CMD_SCAN_RADIO_TYPE_BG; |
| 222 | param->channumber = |
| 223 | priv->scan_req->channels[priv->scan_channel]->hw_value; |
| 224 | if (active_scan) { |
| 225 | param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE); |
| 226 | } else { |
| 227 | param->chanscanmode.passivescan = 1; |
| 228 | param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE); |
| 229 | } |
| 230 | tlv += sizeof(struct chanscanparamset); |
| 231 | priv->scan_channel++; |
| 232 | } |
| 233 | return sizeof(struct mrvl_ie_header) + chanscanparamsize; |
| 234 | } |
| 235 | |
| 236 | |
| 237 | /* |
| 238 | * Add rates TLV |
| 239 | * |
| 240 | * The rates are in lbs_bg_rates[], but for the 802.11b |
| 241 | * rates the high bit is set. We add this TLV only because |
| 242 | * there's a firmware which otherwise doesn't report all |
| 243 | * APs in range. |
| 244 | */ |
| 245 | #define LBS_MAX_RATES_TLV_SIZE \ |
| 246 | (sizeof(struct mrvl_ie_header) \ |
| 247 | + (ARRAY_SIZE(lbs_rates))) |
| 248 | |
| 249 | /* Adds a TLV with all rates the hardware supports */ |
| 250 | static int lbs_add_supported_rates_tlv(u8 *tlv) |
| 251 | { |
| 252 | size_t i; |
| 253 | struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; |
| 254 | |
| 255 | /* |
| 256 | * TLV-ID RATES 01 00 |
| 257 | * length 0e 00 |
| 258 | * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c |
| 259 | */ |
| 260 | rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); |
| 261 | tlv += sizeof(rate_tlv->header); |
| 262 | i = lbs_add_rates(tlv); |
| 263 | tlv += i; |
| 264 | rate_tlv->header.len = cpu_to_le16(i); |
| 265 | return sizeof(rate_tlv->header) + i; |
| 266 | } |
| 267 | |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 268 | /* Add common rates from a TLV and return the new end of the TLV */ |
| 269 | static u8 * |
| 270 | add_ie_rates(u8 *tlv, const u8 *ie, int *nrates) |
| 271 | { |
| 272 | int hw, ap, ap_max = ie[1]; |
| 273 | u8 hw_rate; |
| 274 | |
| 275 | /* Advance past IE header */ |
| 276 | ie += 2; |
| 277 | |
| 278 | lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max); |
| 279 | |
| 280 | for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { |
| 281 | hw_rate = lbs_rates[hw].bitrate / 5; |
| 282 | for (ap = 0; ap < ap_max; ap++) { |
| 283 | if (hw_rate == (ie[ap] & 0x7f)) { |
| 284 | *tlv++ = ie[ap]; |
| 285 | *nrates = *nrates + 1; |
| 286 | } |
| 287 | } |
| 288 | } |
| 289 | return tlv; |
| 290 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 291 | |
| 292 | /* |
| 293 | * Adds a TLV with all rates the hardware *and* BSS supports. |
| 294 | */ |
| 295 | static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss) |
| 296 | { |
| 297 | struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 298 | const u8 *rates_eid, *ext_rates_eid; |
| 299 | int n = 0; |
| 300 | |
| 301 | rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); |
| 302 | ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 303 | |
| 304 | /* |
| 305 | * 01 00 TLV_TYPE_RATES |
| 306 | * 04 00 len |
| 307 | * 82 84 8b 96 rates |
| 308 | */ |
| 309 | rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); |
| 310 | tlv += sizeof(rate_tlv->header); |
| 311 | |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 312 | /* Add basic rates */ |
| 313 | if (rates_eid) { |
| 314 | tlv = add_ie_rates(tlv, rates_eid, &n); |
| 315 | |
| 316 | /* Add extended rates, if any */ |
| 317 | if (ext_rates_eid) |
| 318 | tlv = add_ie_rates(tlv, ext_rates_eid, &n); |
| 319 | } else { |
| 320 | lbs_deb_assoc("assoc: bss had no basic rate IE\n"); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 321 | /* Fallback: add basic 802.11b rates */ |
| 322 | *tlv++ = 0x82; |
| 323 | *tlv++ = 0x84; |
| 324 | *tlv++ = 0x8b; |
| 325 | *tlv++ = 0x96; |
| 326 | n = 4; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | rate_tlv->header.len = cpu_to_le16(n); |
| 330 | return sizeof(rate_tlv->header) + n; |
| 331 | } |
| 332 | |
| 333 | |
| 334 | /* |
| 335 | * Add auth type TLV. |
| 336 | * |
| 337 | * This is only needed for newer firmware (V9 and up). |
| 338 | */ |
| 339 | #define LBS_MAX_AUTH_TYPE_TLV_SIZE \ |
| 340 | sizeof(struct mrvl_ie_auth_type) |
| 341 | |
| 342 | static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type) |
| 343 | { |
| 344 | struct mrvl_ie_auth_type *auth = (void *) tlv; |
| 345 | |
| 346 | /* |
| 347 | * 1f 01 TLV_TYPE_AUTH_TYPE |
| 348 | * 01 00 len |
| 349 | * 01 auth type |
| 350 | */ |
| 351 | auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE); |
| 352 | auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header)); |
| 353 | auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type)); |
| 354 | return sizeof(*auth); |
| 355 | } |
| 356 | |
| 357 | |
| 358 | /* |
| 359 | * Add channel (phy ds) TLV |
| 360 | */ |
| 361 | #define LBS_MAX_CHANNEL_TLV_SIZE \ |
| 362 | sizeof(struct mrvl_ie_header) |
| 363 | |
| 364 | static int lbs_add_channel_tlv(u8 *tlv, u8 channel) |
| 365 | { |
| 366 | struct mrvl_ie_ds_param_set *ds = (void *) tlv; |
| 367 | |
| 368 | /* |
| 369 | * 03 00 TLV_TYPE_PHY_DS |
| 370 | * 01 00 len |
| 371 | * 06 channel |
| 372 | */ |
| 373 | ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS); |
| 374 | ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header)); |
| 375 | ds->channel = channel; |
| 376 | return sizeof(*ds); |
| 377 | } |
| 378 | |
| 379 | |
| 380 | /* |
| 381 | * Add (empty) CF param TLV of the form: |
| 382 | */ |
| 383 | #define LBS_MAX_CF_PARAM_TLV_SIZE \ |
| 384 | sizeof(struct mrvl_ie_header) |
| 385 | |
| 386 | static int lbs_add_cf_param_tlv(u8 *tlv) |
| 387 | { |
| 388 | struct mrvl_ie_cf_param_set *cf = (void *)tlv; |
| 389 | |
| 390 | /* |
| 391 | * 04 00 TLV_TYPE_CF |
| 392 | * 06 00 len |
| 393 | * 00 cfpcnt |
| 394 | * 00 cfpperiod |
| 395 | * 00 00 cfpmaxduration |
| 396 | * 00 00 cfpdurationremaining |
| 397 | */ |
| 398 | cf->header.type = cpu_to_le16(TLV_TYPE_CF); |
| 399 | cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header)); |
| 400 | return sizeof(*cf); |
| 401 | } |
| 402 | |
| 403 | /* |
| 404 | * Add WPA TLV |
| 405 | */ |
| 406 | #define LBS_MAX_WPA_TLV_SIZE \ |
| 407 | (sizeof(struct mrvl_ie_header) \ |
| 408 | + 128 /* TODO: I guessed the size */) |
| 409 | |
| 410 | static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len) |
| 411 | { |
| 412 | size_t tlv_len; |
| 413 | |
| 414 | /* |
| 415 | * We need just convert an IE to an TLV. IEs use u8 for the header, |
| 416 | * u8 type |
| 417 | * u8 len |
| 418 | * u8[] data |
| 419 | * but TLVs use __le16 instead: |
| 420 | * __le16 type |
| 421 | * __le16 len |
| 422 | * u8[] data |
| 423 | */ |
| 424 | *tlv++ = *ie++; |
| 425 | *tlv++ = 0; |
| 426 | tlv_len = *tlv++ = *ie++; |
| 427 | *tlv++ = 0; |
| 428 | while (tlv_len--) |
| 429 | *tlv++ = *ie++; |
| 430 | /* the TLV is two bytes larger than the IE */ |
| 431 | return ie_len + 2; |
| 432 | } |
| 433 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 434 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 435 | * Set Channel |
| 436 | */ |
| 437 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 438 | static int lbs_cfg_set_channel(struct wiphy *wiphy, |
Johannes Berg | f444de0 | 2010-05-05 15:25:02 +0200 | [diff] [blame] | 439 | struct net_device *netdev, |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 440 | struct ieee80211_channel *channel, |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 441 | enum nl80211_channel_type channel_type) |
| 442 | { |
| 443 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 444 | int ret = -ENOTSUPP; |
| 445 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 446 | lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d, type %d", |
| 447 | netdev_name(netdev), channel->center_freq, channel_type); |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 448 | |
| 449 | if (channel_type != NL80211_CHAN_NO_HT) |
| 450 | goto out; |
| 451 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 452 | if (netdev == priv->mesh_dev) |
| 453 | ret = lbs_mesh_set_channel(priv, channel->hw_value); |
| 454 | else |
| 455 | ret = lbs_set_channel(priv, channel->hw_value); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 456 | |
| 457 | out: |
| 458 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 459 | return ret; |
| 460 | } |
| 461 | |
| 462 | |
| 463 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 464 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 465 | * Scanning |
| 466 | */ |
| 467 | |
| 468 | /* |
| 469 | * When scanning, the firmware doesn't send a nul packet with the power-safe |
| 470 | * bit to the AP. So we cannot stay away from our current channel too long, |
| 471 | * otherwise we loose data. So take a "nap" while scanning every other |
| 472 | * while. |
| 473 | */ |
| 474 | #define LBS_SCAN_BEFORE_NAP 4 |
| 475 | |
| 476 | |
| 477 | /* |
| 478 | * When the firmware reports back a scan-result, it gives us an "u8 rssi", |
| 479 | * which isn't really an RSSI, as it becomes larger when moving away from |
| 480 | * the AP. Anyway, we need to convert that into mBm. |
| 481 | */ |
| 482 | #define LBS_SCAN_RSSI_TO_MBM(rssi) \ |
| 483 | ((-(int)rssi + 3)*100) |
| 484 | |
| 485 | static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy, |
| 486 | struct cmd_header *resp) |
| 487 | { |
John W. Linville | 731f8e1 | 2011-11-11 13:49:45 -0500 | [diff] [blame] | 488 | struct cfg80211_bss *bss; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 489 | struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp; |
| 490 | int bsssize; |
| 491 | const u8 *pos; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 492 | const u8 *tsfdesc; |
| 493 | int tsfsize; |
| 494 | int i; |
| 495 | int ret = -EILSEQ; |
| 496 | |
| 497 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 498 | |
| 499 | bsssize = get_unaligned_le16(&scanresp->bssdescriptsize); |
Dan Williams | aebb628 | 2010-07-29 23:11:30 -0700 | [diff] [blame] | 500 | |
| 501 | lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n", |
John W. Linville | 65a602d | 2010-09-15 15:40:12 -0400 | [diff] [blame] | 502 | scanresp->nr_sets, bsssize, le16_to_cpu(resp->size)); |
Dan Williams | aebb628 | 2010-07-29 23:11:30 -0700 | [diff] [blame] | 503 | |
John W. Linville | 65a602d | 2010-09-15 15:40:12 -0400 | [diff] [blame] | 504 | if (scanresp->nr_sets == 0) { |
Dan Williams | aebb628 | 2010-07-29 23:11:30 -0700 | [diff] [blame] | 505 | ret = 0; |
| 506 | goto done; |
| 507 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 508 | |
| 509 | /* |
| 510 | * The general layout of the scan response is described in chapter |
| 511 | * 5.7.1. Basically we have a common part, then any number of BSS |
| 512 | * descriptor sections. Finally we have section with the same number |
| 513 | * of TSFs. |
| 514 | * |
| 515 | * cmd_ds_802_11_scan_rsp |
| 516 | * cmd_header |
| 517 | * pos_size |
| 518 | * nr_sets |
| 519 | * bssdesc 1 |
| 520 | * bssid |
| 521 | * rssi |
| 522 | * timestamp |
| 523 | * intvl |
| 524 | * capa |
| 525 | * IEs |
| 526 | * bssdesc 2 |
| 527 | * bssdesc n |
| 528 | * MrvlIEtypes_TsfFimestamp_t |
| 529 | * TSF for BSS 1 |
| 530 | * TSF for BSS 2 |
| 531 | * TSF for BSS n |
| 532 | */ |
| 533 | |
| 534 | pos = scanresp->bssdesc_and_tlvbuffer; |
| 535 | |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 536 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer, |
| 537 | scanresp->bssdescriptsize); |
| 538 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 539 | tsfdesc = pos + bsssize; |
| 540 | tsfsize = 4 + 8 * scanresp->nr_sets; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 541 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 542 | |
| 543 | /* Validity check: we expect a Marvell-Local TLV */ |
| 544 | i = get_unaligned_le16(tsfdesc); |
| 545 | tsfdesc += 2; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 546 | if (i != TLV_TYPE_TSFTIMESTAMP) { |
| 547 | lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 548 | goto done; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 549 | } |
| 550 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 551 | /* |
| 552 | * Validity check: the TLV holds TSF values with 8 bytes each, so |
| 553 | * the size in the TLV must match the nr_sets value |
| 554 | */ |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 555 | i = get_unaligned_le16(tsfdesc); |
| 556 | tsfdesc += 2; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 557 | if (i / 8 != scanresp->nr_sets) { |
| 558 | lbs_deb_scan("scan response: invalid number of TSF timestamp " |
| 559 | "sets (expected %d got %d)\n", scanresp->nr_sets, |
| 560 | i / 8); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 561 | goto done; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 562 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 563 | |
| 564 | for (i = 0; i < scanresp->nr_sets; i++) { |
| 565 | const u8 *bssid; |
| 566 | const u8 *ie; |
| 567 | int left; |
| 568 | int ielen; |
| 569 | int rssi; |
| 570 | u16 intvl; |
| 571 | u16 capa; |
| 572 | int chan_no = -1; |
| 573 | const u8 *ssid = NULL; |
| 574 | u8 ssid_len = 0; |
| 575 | DECLARE_SSID_BUF(ssid_buf); |
| 576 | |
| 577 | int len = get_unaligned_le16(pos); |
| 578 | pos += 2; |
| 579 | |
| 580 | /* BSSID */ |
| 581 | bssid = pos; |
| 582 | pos += ETH_ALEN; |
| 583 | /* RSSI */ |
| 584 | rssi = *pos++; |
| 585 | /* Packet time stamp */ |
| 586 | pos += 8; |
| 587 | /* Beacon interval */ |
| 588 | intvl = get_unaligned_le16(pos); |
| 589 | pos += 2; |
| 590 | /* Capabilities */ |
| 591 | capa = get_unaligned_le16(pos); |
| 592 | pos += 2; |
| 593 | |
| 594 | /* To find out the channel, we must parse the IEs */ |
| 595 | ie = pos; |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 596 | /* |
| 597 | * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon |
| 598 | * interval, capabilities |
| 599 | */ |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 600 | ielen = left = len - (6 + 1 + 8 + 2 + 2); |
| 601 | while (left >= 2) { |
| 602 | u8 id, elen; |
| 603 | id = *pos++; |
| 604 | elen = *pos++; |
| 605 | left -= 2; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 606 | if (elen > left || elen == 0) { |
| 607 | lbs_deb_scan("scan response: invalid IE fmt\n"); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 608 | goto done; |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 609 | } |
| 610 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 611 | if (id == WLAN_EID_DS_PARAMS) |
| 612 | chan_no = *pos; |
| 613 | if (id == WLAN_EID_SSID) { |
| 614 | ssid = pos; |
| 615 | ssid_len = elen; |
| 616 | } |
| 617 | left -= elen; |
| 618 | pos += elen; |
| 619 | } |
| 620 | |
| 621 | /* No channel, no luck */ |
| 622 | if (chan_no != -1) { |
| 623 | struct wiphy *wiphy = priv->wdev->wiphy; |
Bruno Randolf | 59eb21a | 2011-01-17 13:37:28 +0900 | [diff] [blame] | 624 | int freq = ieee80211_channel_to_frequency(chan_no, |
| 625 | IEEE80211_BAND_2GHZ); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 626 | struct ieee80211_channel *channel = |
| 627 | ieee80211_get_channel(wiphy, freq); |
| 628 | |
| 629 | lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, " |
| 630 | "%d dBm\n", |
| 631 | bssid, capa, chan_no, |
| 632 | print_ssid(ssid_buf, ssid, ssid_len), |
| 633 | LBS_SCAN_RSSI_TO_MBM(rssi)/100); |
| 634 | |
Sven Neumann | 4a55d58 | 2010-12-09 09:38:36 +0100 | [diff] [blame] | 635 | if (channel && |
John W. Linville | 731f8e1 | 2011-11-11 13:49:45 -0500 | [diff] [blame] | 636 | !(channel->flags & IEEE80211_CHAN_DISABLED)) { |
| 637 | bss = cfg80211_inform_bss(wiphy, channel, |
Steven Miao | d929bbc | 2011-11-09 16:30:40 +0800 | [diff] [blame] | 638 | bssid, get_unaligned_le64(tsfdesc), |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 639 | capa, intvl, ie, ielen, |
| 640 | LBS_SCAN_RSSI_TO_MBM(rssi), |
| 641 | GFP_KERNEL); |
John W. Linville | 731f8e1 | 2011-11-11 13:49:45 -0500 | [diff] [blame] | 642 | cfg80211_put_bss(bss); |
| 643 | } |
Dan Williams | 4083858 | 2010-07-29 23:12:53 -0700 | [diff] [blame] | 644 | } else |
| 645 | lbs_deb_scan("scan response: missing BSS channel IE\n"); |
| 646 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 647 | tsfdesc += 8; |
| 648 | } |
| 649 | ret = 0; |
| 650 | |
| 651 | done: |
| 652 | lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); |
| 653 | return ret; |
| 654 | } |
| 655 | |
| 656 | |
| 657 | /* |
| 658 | * Our scan command contains a TLV, consting of a SSID TLV, a channel list |
| 659 | * TLV and a rates TLV. Determine the maximum size of them: |
| 660 | */ |
| 661 | #define LBS_SCAN_MAX_CMD_SIZE \ |
| 662 | (sizeof(struct cmd_ds_802_11_scan) \ |
| 663 | + LBS_MAX_SSID_TLV_SIZE \ |
| 664 | + LBS_MAX_CHANNEL_LIST_TLV_SIZE \ |
| 665 | + LBS_MAX_RATES_TLV_SIZE) |
| 666 | |
| 667 | /* |
| 668 | * Assumes priv->scan_req is initialized and valid |
| 669 | * Assumes priv->scan_channel is initialized |
| 670 | */ |
| 671 | static void lbs_scan_worker(struct work_struct *work) |
| 672 | { |
| 673 | struct lbs_private *priv = |
| 674 | container_of(work, struct lbs_private, scan_work.work); |
| 675 | struct cmd_ds_802_11_scan *scan_cmd; |
| 676 | u8 *tlv; /* pointer into our current, growing TLV storage area */ |
| 677 | int last_channel; |
| 678 | int running, carrier; |
| 679 | |
| 680 | lbs_deb_enter(LBS_DEB_SCAN); |
| 681 | |
| 682 | scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL); |
| 683 | if (scan_cmd == NULL) |
| 684 | goto out_no_scan_cmd; |
| 685 | |
| 686 | /* prepare fixed part of scan command */ |
| 687 | scan_cmd->bsstype = CMD_BSS_TYPE_ANY; |
| 688 | |
| 689 | /* stop network while we're away from our main channel */ |
| 690 | running = !netif_queue_stopped(priv->dev); |
| 691 | carrier = netif_carrier_ok(priv->dev); |
| 692 | if (running) |
| 693 | netif_stop_queue(priv->dev); |
| 694 | if (carrier) |
| 695 | netif_carrier_off(priv->dev); |
| 696 | |
| 697 | /* prepare fixed part of scan command */ |
| 698 | tlv = scan_cmd->tlvbuffer; |
| 699 | |
| 700 | /* add SSID TLV */ |
Daniel Drake | b4c3f34 | 2011-09-21 18:43:59 +0100 | [diff] [blame] | 701 | if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0) |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 702 | tlv += lbs_add_ssid_tlv(tlv, |
| 703 | priv->scan_req->ssids[0].ssid, |
| 704 | priv->scan_req->ssids[0].ssid_len); |
| 705 | |
| 706 | /* add channel TLVs */ |
| 707 | last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP; |
| 708 | if (last_channel > priv->scan_req->n_channels) |
| 709 | last_channel = priv->scan_req->n_channels; |
| 710 | tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel, |
| 711 | priv->scan_req->n_ssids); |
| 712 | |
| 713 | /* add rates TLV */ |
| 714 | tlv += lbs_add_supported_rates_tlv(tlv); |
| 715 | |
| 716 | if (priv->scan_channel < priv->scan_req->n_channels) { |
| 717 | cancel_delayed_work(&priv->scan_work); |
Daniel Drake | d2e7b34 | 2011-08-01 16:43:13 +0100 | [diff] [blame] | 718 | if (netif_running(priv->dev)) |
Daniel Drake | 2e30168 | 2010-11-04 21:21:52 +0000 | [diff] [blame] | 719 | queue_delayed_work(priv->work_thread, &priv->scan_work, |
| 720 | msecs_to_jiffies(300)); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | /* This is the final data we are about to send */ |
| 724 | scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd); |
| 725 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd, |
| 726 | sizeof(*scan_cmd)); |
| 727 | lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer, |
| 728 | tlv - scan_cmd->tlvbuffer); |
| 729 | |
| 730 | __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr, |
| 731 | le16_to_cpu(scan_cmd->hdr.size), |
| 732 | lbs_ret_scan, 0); |
| 733 | |
Andres Salomon | afbca95 | 2011-12-19 12:22:58 -0800 | [diff] [blame] | 734 | if (priv->scan_channel >= priv->scan_req->n_channels) { |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 735 | /* Mark scan done */ |
Andres Salomon | afbca95 | 2011-12-19 12:22:58 -0800 | [diff] [blame] | 736 | cancel_delayed_work(&priv->scan_work); |
Andres Salomon | 3209e06 | 2011-10-26 10:19:26 -0700 | [diff] [blame] | 737 | lbs_scan_done(priv); |
Andres Salomon | afbca95 | 2011-12-19 12:22:58 -0800 | [diff] [blame] | 738 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 739 | |
| 740 | /* Restart network */ |
| 741 | if (carrier) |
| 742 | netif_carrier_on(priv->dev); |
| 743 | if (running && !priv->tx_pending_len) |
| 744 | netif_wake_queue(priv->dev); |
| 745 | |
| 746 | kfree(scan_cmd); |
| 747 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 748 | /* Wake up anything waiting on scan completion */ |
| 749 | if (priv->scan_req == NULL) { |
| 750 | lbs_deb_scan("scan: waking up waiters\n"); |
| 751 | wake_up_all(&priv->scan_q); |
| 752 | } |
| 753 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 754 | out_no_scan_cmd: |
| 755 | lbs_deb_leave(LBS_DEB_SCAN); |
| 756 | } |
| 757 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 758 | static void _internal_start_scan(struct lbs_private *priv, bool internal, |
| 759 | struct cfg80211_scan_request *request) |
| 760 | { |
| 761 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 762 | |
| 763 | lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n", |
| 764 | request->n_ssids, request->n_channels, request->ie_len); |
| 765 | |
| 766 | priv->scan_channel = 0; |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 767 | priv->scan_req = request; |
| 768 | priv->internal_scan = internal; |
| 769 | |
Andres Salomon | afbca95 | 2011-12-19 12:22:58 -0800 | [diff] [blame] | 770 | queue_delayed_work(priv->work_thread, &priv->scan_work, |
| 771 | msecs_to_jiffies(50)); |
| 772 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 773 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 774 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 775 | |
Andres Salomon | 3209e06 | 2011-10-26 10:19:26 -0700 | [diff] [blame] | 776 | /* |
| 777 | * Clean up priv->scan_req. Should be used to handle the allocation details. |
| 778 | */ |
| 779 | void lbs_scan_done(struct lbs_private *priv) |
| 780 | { |
| 781 | WARN_ON(!priv->scan_req); |
| 782 | |
| 783 | if (priv->internal_scan) |
| 784 | kfree(priv->scan_req); |
| 785 | else |
| 786 | cfg80211_scan_done(priv->scan_req, false); |
| 787 | |
| 788 | priv->scan_req = NULL; |
| 789 | } |
| 790 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 791 | static int lbs_cfg_scan(struct wiphy *wiphy, |
| 792 | struct net_device *dev, |
| 793 | struct cfg80211_scan_request *request) |
| 794 | { |
| 795 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 796 | int ret = 0; |
| 797 | |
| 798 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 799 | |
| 800 | if (priv->scan_req || delayed_work_pending(&priv->scan_work)) { |
| 801 | /* old scan request not yet processed */ |
| 802 | ret = -EAGAIN; |
| 803 | goto out; |
| 804 | } |
| 805 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 806 | _internal_start_scan(priv, false, request); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 807 | |
| 808 | if (priv->surpriseremoved) |
| 809 | ret = -EIO; |
| 810 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 811 | out: |
| 812 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 813 | return ret; |
| 814 | } |
| 815 | |
| 816 | |
| 817 | |
| 818 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 819 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 820 | * Events |
| 821 | */ |
| 822 | |
| 823 | void lbs_send_disconnect_notification(struct lbs_private *priv) |
| 824 | { |
| 825 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 826 | |
| 827 | cfg80211_disconnected(priv->dev, |
| 828 | 0, |
| 829 | NULL, 0, |
| 830 | GFP_KERNEL); |
| 831 | |
| 832 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 833 | } |
| 834 | |
| 835 | void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event) |
| 836 | { |
| 837 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 838 | |
| 839 | cfg80211_michael_mic_failure(priv->dev, |
| 840 | priv->assoc_bss, |
| 841 | event == MACREG_INT_CODE_MIC_ERR_MULTICAST ? |
| 842 | NL80211_KEYTYPE_GROUP : |
| 843 | NL80211_KEYTYPE_PAIRWISE, |
| 844 | -1, |
| 845 | NULL, |
| 846 | GFP_KERNEL); |
| 847 | |
| 848 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 849 | } |
| 850 | |
| 851 | |
| 852 | |
| 853 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 854 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 855 | * Connect/disconnect |
| 856 | */ |
| 857 | |
| 858 | |
| 859 | /* |
| 860 | * This removes all WEP keys |
| 861 | */ |
| 862 | static int lbs_remove_wep_keys(struct lbs_private *priv) |
| 863 | { |
| 864 | struct cmd_ds_802_11_set_wep cmd; |
| 865 | int ret; |
| 866 | |
| 867 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 868 | |
| 869 | memset(&cmd, 0, sizeof(cmd)); |
| 870 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 871 | cmd.keyindex = cpu_to_le16(priv->wep_tx_key); |
| 872 | cmd.action = cpu_to_le16(CMD_ACT_REMOVE); |
| 873 | |
| 874 | ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); |
| 875 | |
| 876 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 877 | return ret; |
| 878 | } |
| 879 | |
| 880 | /* |
| 881 | * Set WEP keys |
| 882 | */ |
| 883 | static int lbs_set_wep_keys(struct lbs_private *priv) |
| 884 | { |
| 885 | struct cmd_ds_802_11_set_wep cmd; |
| 886 | int i; |
| 887 | int ret; |
| 888 | |
| 889 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 890 | |
| 891 | /* |
| 892 | * command 13 00 |
| 893 | * size 50 00 |
| 894 | * sequence xx xx |
| 895 | * result 00 00 |
| 896 | * action 02 00 ACT_ADD |
| 897 | * transmit key 00 00 |
| 898 | * type for key 1 01 WEP40 |
| 899 | * type for key 2 00 |
| 900 | * type for key 3 00 |
| 901 | * type for key 4 00 |
| 902 | * key 1 39 39 39 39 39 00 00 00 |
| 903 | * 00 00 00 00 00 00 00 00 |
| 904 | * key 2 00 00 00 00 00 00 00 00 |
| 905 | * 00 00 00 00 00 00 00 00 |
| 906 | * key 3 00 00 00 00 00 00 00 00 |
| 907 | * 00 00 00 00 00 00 00 00 |
| 908 | * key 4 00 00 00 00 00 00 00 00 |
| 909 | */ |
| 910 | if (priv->wep_key_len[0] || priv->wep_key_len[1] || |
| 911 | priv->wep_key_len[2] || priv->wep_key_len[3]) { |
| 912 | /* Only set wep keys if we have at least one of them */ |
| 913 | memset(&cmd, 0, sizeof(cmd)); |
| 914 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 915 | cmd.keyindex = cpu_to_le16(priv->wep_tx_key); |
| 916 | cmd.action = cpu_to_le16(CMD_ACT_ADD); |
| 917 | |
| 918 | for (i = 0; i < 4; i++) { |
| 919 | switch (priv->wep_key_len[i]) { |
| 920 | case WLAN_KEY_LEN_WEP40: |
| 921 | cmd.keytype[i] = CMD_TYPE_WEP_40_BIT; |
| 922 | break; |
| 923 | case WLAN_KEY_LEN_WEP104: |
| 924 | cmd.keytype[i] = CMD_TYPE_WEP_104_BIT; |
| 925 | break; |
| 926 | default: |
| 927 | cmd.keytype[i] = 0; |
| 928 | break; |
| 929 | } |
| 930 | memcpy(cmd.keymaterial[i], priv->wep_key[i], |
| 931 | priv->wep_key_len[i]); |
| 932 | } |
| 933 | |
| 934 | ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); |
| 935 | } else { |
| 936 | /* Otherwise remove all wep keys */ |
| 937 | ret = lbs_remove_wep_keys(priv); |
| 938 | } |
| 939 | |
| 940 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 941 | return ret; |
| 942 | } |
| 943 | |
| 944 | |
| 945 | /* |
| 946 | * Enable/Disable RSN status |
| 947 | */ |
| 948 | static int lbs_enable_rsn(struct lbs_private *priv, int enable) |
| 949 | { |
| 950 | struct cmd_ds_802_11_enable_rsn cmd; |
| 951 | int ret; |
| 952 | |
| 953 | lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable); |
| 954 | |
| 955 | /* |
| 956 | * cmd 2f 00 |
| 957 | * size 0c 00 |
| 958 | * sequence xx xx |
| 959 | * result 00 00 |
| 960 | * action 01 00 ACT_SET |
| 961 | * enable 01 00 |
| 962 | */ |
| 963 | memset(&cmd, 0, sizeof(cmd)); |
| 964 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 965 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 966 | cmd.enable = cpu_to_le16(enable); |
| 967 | |
| 968 | ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd); |
| 969 | |
| 970 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 971 | return ret; |
| 972 | } |
| 973 | |
| 974 | |
| 975 | /* |
| 976 | * Set WPA/WPA key material |
| 977 | */ |
| 978 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 979 | /* |
| 980 | * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we |
| 981 | * get rid of WEXT, this should go into host.h |
| 982 | */ |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 983 | |
| 984 | struct cmd_key_material { |
| 985 | struct cmd_header hdr; |
| 986 | |
| 987 | __le16 action; |
| 988 | struct MrvlIEtype_keyParamSet param; |
John W. Linville | beabe91 | 2010-07-14 10:37:03 -0400 | [diff] [blame] | 989 | } __packed; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 990 | |
| 991 | static int lbs_set_key_material(struct lbs_private *priv, |
| 992 | int key_type, |
| 993 | int key_info, |
| 994 | u8 *key, u16 key_len) |
| 995 | { |
| 996 | struct cmd_key_material cmd; |
| 997 | int ret; |
| 998 | |
| 999 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1000 | |
| 1001 | /* |
| 1002 | * Example for WPA (TKIP): |
| 1003 | * |
| 1004 | * cmd 5e 00 |
| 1005 | * size 34 00 |
| 1006 | * sequence xx xx |
| 1007 | * result 00 00 |
| 1008 | * action 01 00 |
| 1009 | * TLV type 00 01 key param |
| 1010 | * length 00 26 |
| 1011 | * key type 01 00 TKIP |
| 1012 | * key info 06 00 UNICAST | ENABLED |
| 1013 | * key len 20 00 |
| 1014 | * key 32 bytes |
| 1015 | */ |
| 1016 | memset(&cmd, 0, sizeof(cmd)); |
| 1017 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 1018 | cmd.action = cpu_to_le16(CMD_ACT_SET); |
| 1019 | cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL); |
| 1020 | cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4); |
| 1021 | cmd.param.keytypeid = cpu_to_le16(key_type); |
| 1022 | cmd.param.keyinfo = cpu_to_le16(key_info); |
| 1023 | cmd.param.keylen = cpu_to_le16(key_len); |
| 1024 | if (key && key_len) |
| 1025 | memcpy(cmd.param.key, key, key_len); |
| 1026 | |
| 1027 | ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd); |
| 1028 | |
| 1029 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 1030 | return ret; |
| 1031 | } |
| 1032 | |
| 1033 | |
| 1034 | /* |
| 1035 | * Sets the auth type (open, shared, etc) in the firmware. That |
| 1036 | * we use CMD_802_11_AUTHENTICATE is misleading, this firmware |
| 1037 | * command doesn't send an authentication frame at all, it just |
| 1038 | * stores the auth_type. |
| 1039 | */ |
| 1040 | static int lbs_set_authtype(struct lbs_private *priv, |
| 1041 | struct cfg80211_connect_params *sme) |
| 1042 | { |
| 1043 | struct cmd_ds_802_11_authenticate cmd; |
| 1044 | int ret; |
| 1045 | |
| 1046 | lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type); |
| 1047 | |
| 1048 | /* |
| 1049 | * cmd 11 00 |
| 1050 | * size 19 00 |
| 1051 | * sequence xx xx |
| 1052 | * result 00 00 |
| 1053 | * BSS id 00 13 19 80 da 30 |
| 1054 | * auth type 00 |
| 1055 | * reserved 00 00 00 00 00 00 00 00 00 00 |
| 1056 | */ |
| 1057 | memset(&cmd, 0, sizeof(cmd)); |
| 1058 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 1059 | if (sme->bssid) |
| 1060 | memcpy(cmd.bssid, sme->bssid, ETH_ALEN); |
| 1061 | /* convert auth_type */ |
| 1062 | ret = lbs_auth_to_authtype(sme->auth_type); |
| 1063 | if (ret < 0) |
| 1064 | goto done; |
| 1065 | |
| 1066 | cmd.authtype = ret; |
| 1067 | ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd); |
| 1068 | |
| 1069 | done: |
| 1070 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1071 | return ret; |
| 1072 | } |
| 1073 | |
| 1074 | |
| 1075 | /* |
| 1076 | * Create association request |
| 1077 | */ |
| 1078 | #define LBS_ASSOC_MAX_CMD_SIZE \ |
| 1079 | (sizeof(struct cmd_ds_802_11_associate) \ |
| 1080 | - 512 /* cmd_ds_802_11_associate.iebuf */ \ |
| 1081 | + LBS_MAX_SSID_TLV_SIZE \ |
| 1082 | + LBS_MAX_CHANNEL_TLV_SIZE \ |
| 1083 | + LBS_MAX_CF_PARAM_TLV_SIZE \ |
| 1084 | + LBS_MAX_AUTH_TYPE_TLV_SIZE \ |
| 1085 | + LBS_MAX_WPA_TLV_SIZE) |
| 1086 | |
| 1087 | static int lbs_associate(struct lbs_private *priv, |
| 1088 | struct cfg80211_bss *bss, |
| 1089 | struct cfg80211_connect_params *sme) |
| 1090 | { |
| 1091 | struct cmd_ds_802_11_associate_response *resp; |
| 1092 | struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE, |
| 1093 | GFP_KERNEL); |
| 1094 | const u8 *ssid_eid; |
| 1095 | size_t len, resp_ie_len; |
| 1096 | int status; |
| 1097 | int ret; |
| 1098 | u8 *pos = &(cmd->iebuf[0]); |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 1099 | u8 *tmp; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1100 | |
| 1101 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1102 | |
| 1103 | if (!cmd) { |
| 1104 | ret = -ENOMEM; |
| 1105 | goto done; |
| 1106 | } |
| 1107 | |
| 1108 | /* |
| 1109 | * cmd 50 00 |
| 1110 | * length 34 00 |
| 1111 | * sequence xx xx |
| 1112 | * result 00 00 |
| 1113 | * BSS id 00 13 19 80 da 30 |
| 1114 | * capabilities 11 00 |
| 1115 | * listen interval 0a 00 |
| 1116 | * beacon interval 00 00 |
| 1117 | * DTIM period 00 |
| 1118 | * TLVs xx (up to 512 bytes) |
| 1119 | */ |
| 1120 | cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE); |
| 1121 | |
| 1122 | /* Fill in static fields */ |
| 1123 | memcpy(cmd->bssid, bss->bssid, ETH_ALEN); |
| 1124 | cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL); |
| 1125 | cmd->capability = cpu_to_le16(bss->capability); |
| 1126 | |
| 1127 | /* add SSID TLV */ |
| 1128 | ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID); |
| 1129 | if (ssid_eid) |
| 1130 | pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]); |
| 1131 | else |
| 1132 | lbs_deb_assoc("no SSID\n"); |
| 1133 | |
| 1134 | /* add DS param TLV */ |
| 1135 | if (bss->channel) |
| 1136 | pos += lbs_add_channel_tlv(pos, bss->channel->hw_value); |
| 1137 | else |
| 1138 | lbs_deb_assoc("no channel\n"); |
| 1139 | |
| 1140 | /* add (empty) CF param TLV */ |
| 1141 | pos += lbs_add_cf_param_tlv(pos); |
| 1142 | |
| 1143 | /* add rates TLV */ |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 1144 | tmp = pos + 4; /* skip Marvell IE header */ |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1145 | pos += lbs_add_common_rates_tlv(pos, bss); |
Dan Williams | 1975753 | 2010-07-29 23:16:01 -0700 | [diff] [blame] | 1146 | lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1147 | |
| 1148 | /* add auth type TLV */ |
Dan Williams | 86df5f7 | 2010-07-29 23:14:33 -0700 | [diff] [blame] | 1149 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9) |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1150 | pos += lbs_add_auth_type_tlv(pos, sme->auth_type); |
| 1151 | |
| 1152 | /* add WPA/WPA2 TLV */ |
| 1153 | if (sme->ie && sme->ie_len) |
| 1154 | pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len); |
| 1155 | |
| 1156 | len = (sizeof(*cmd) - sizeof(cmd->iebuf)) + |
| 1157 | (u16)(pos - (u8 *) &cmd->iebuf); |
| 1158 | cmd->hdr.size = cpu_to_le16(len); |
| 1159 | |
Dan Williams | 86df5f7 | 2010-07-29 23:14:33 -0700 | [diff] [blame] | 1160 | lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd, |
| 1161 | le16_to_cpu(cmd->hdr.size)); |
| 1162 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1163 | /* store for later use */ |
| 1164 | memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN); |
| 1165 | |
| 1166 | ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd); |
| 1167 | if (ret) |
| 1168 | goto done; |
| 1169 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1170 | /* generate connect message to cfg80211 */ |
| 1171 | |
| 1172 | resp = (void *) cmd; /* recast for easier field access */ |
| 1173 | status = le16_to_cpu(resp->statuscode); |
| 1174 | |
Dan Williams | 86df5f7 | 2010-07-29 23:14:33 -0700 | [diff] [blame] | 1175 | /* Older FW versions map the IEEE 802.11 Status Code in the association |
| 1176 | * response to the following values returned in resp->statuscode: |
| 1177 | * |
| 1178 | * IEEE Status Code Marvell Status Code |
| 1179 | * 0 -> 0x0000 ASSOC_RESULT_SUCCESS |
| 1180 | * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| 1181 | * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| 1182 | * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| 1183 | * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED |
| 1184 | * others -> 0x0003 ASSOC_RESULT_REFUSED |
| 1185 | * |
| 1186 | * Other response codes: |
| 1187 | * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused) |
| 1188 | * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for |
| 1189 | * association response from the AP) |
| 1190 | */ |
| 1191 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1192 | switch (status) { |
| 1193 | case 0: |
| 1194 | break; |
| 1195 | case 1: |
| 1196 | lbs_deb_assoc("invalid association parameters\n"); |
| 1197 | status = WLAN_STATUS_CAPS_UNSUPPORTED; |
| 1198 | break; |
| 1199 | case 2: |
| 1200 | lbs_deb_assoc("timer expired while waiting for AP\n"); |
| 1201 | status = WLAN_STATUS_AUTH_TIMEOUT; |
| 1202 | break; |
| 1203 | case 3: |
| 1204 | lbs_deb_assoc("association refused by AP\n"); |
| 1205 | status = WLAN_STATUS_ASSOC_DENIED_UNSPEC; |
| 1206 | break; |
| 1207 | case 4: |
| 1208 | lbs_deb_assoc("authentication refused by AP\n"); |
| 1209 | status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; |
| 1210 | break; |
| 1211 | default: |
| 1212 | lbs_deb_assoc("association failure %d\n", status); |
Dan Williams | 86df5f7 | 2010-07-29 23:14:33 -0700 | [diff] [blame] | 1213 | /* v5 OLPC firmware does return the AP status code if |
| 1214 | * it's not one of the values above. Let that through. |
| 1215 | */ |
| 1216 | break; |
| 1217 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1218 | } |
| 1219 | |
Dan Williams | 86df5f7 | 2010-07-29 23:14:33 -0700 | [diff] [blame] | 1220 | lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, " |
| 1221 | "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode), |
| 1222 | le16_to_cpu(resp->capability), le16_to_cpu(resp->aid)); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1223 | |
| 1224 | resp_ie_len = le16_to_cpu(resp->hdr.size) |
| 1225 | - sizeof(resp->hdr) |
| 1226 | - 6; |
| 1227 | cfg80211_connect_result(priv->dev, |
| 1228 | priv->assoc_bss, |
| 1229 | sme->ie, sme->ie_len, |
| 1230 | resp->iebuf, resp_ie_len, |
| 1231 | status, |
| 1232 | GFP_KERNEL); |
| 1233 | |
| 1234 | if (status == 0) { |
| 1235 | /* TODO: get rid of priv->connect_status */ |
| 1236 | priv->connect_status = LBS_CONNECTED; |
| 1237 | netif_carrier_on(priv->dev); |
| 1238 | if (!priv->tx_pending_len) |
| 1239 | netif_tx_wake_all_queues(priv->dev); |
| 1240 | } |
| 1241 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1242 | done: |
| 1243 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1244 | return ret; |
| 1245 | } |
| 1246 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1247 | static struct cfg80211_scan_request * |
| 1248 | _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme) |
| 1249 | { |
| 1250 | struct cfg80211_scan_request *creq = NULL; |
| 1251 | int i, n_channels = 0; |
| 1252 | enum ieee80211_band band; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1253 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1254 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 1255 | if (wiphy->bands[band]) |
| 1256 | n_channels += wiphy->bands[band]->n_channels; |
| 1257 | } |
| 1258 | |
| 1259 | creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) + |
| 1260 | n_channels * sizeof(void *), |
| 1261 | GFP_ATOMIC); |
| 1262 | if (!creq) |
| 1263 | return NULL; |
| 1264 | |
| 1265 | /* SSIDs come after channels */ |
| 1266 | creq->ssids = (void *)&creq->channels[n_channels]; |
| 1267 | creq->n_channels = n_channels; |
| 1268 | creq->n_ssids = 1; |
| 1269 | |
| 1270 | /* Scan all available channels */ |
| 1271 | i = 0; |
| 1272 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
| 1273 | int j; |
| 1274 | |
| 1275 | if (!wiphy->bands[band]) |
| 1276 | continue; |
| 1277 | |
| 1278 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { |
| 1279 | /* ignore disabled channels */ |
| 1280 | if (wiphy->bands[band]->channels[j].flags & |
| 1281 | IEEE80211_CHAN_DISABLED) |
| 1282 | continue; |
| 1283 | |
| 1284 | creq->channels[i] = &wiphy->bands[band]->channels[j]; |
| 1285 | i++; |
| 1286 | } |
| 1287 | } |
| 1288 | if (i) { |
| 1289 | /* Set real number of channels specified in creq->channels[] */ |
| 1290 | creq->n_channels = i; |
| 1291 | |
| 1292 | /* Scan for the SSID we're going to connect to */ |
| 1293 | memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len); |
| 1294 | creq->ssids[0].ssid_len = sme->ssid_len; |
| 1295 | } else { |
| 1296 | /* No channels found... */ |
| 1297 | kfree(creq); |
| 1298 | creq = NULL; |
| 1299 | } |
| 1300 | |
| 1301 | return creq; |
| 1302 | } |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1303 | |
| 1304 | static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev, |
| 1305 | struct cfg80211_connect_params *sme) |
| 1306 | { |
| 1307 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1308 | struct cfg80211_bss *bss = NULL; |
| 1309 | int ret = 0; |
| 1310 | u8 preamble = RADIO_PREAMBLE_SHORT; |
| 1311 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1312 | if (dev == priv->mesh_dev) |
| 1313 | return -EOPNOTSUPP; |
| 1314 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1315 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1316 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1317 | if (!sme->bssid) { |
Daniel Drake | b4c3f34 | 2011-09-21 18:43:59 +0100 | [diff] [blame] | 1318 | struct cfg80211_scan_request *creq; |
| 1319 | |
| 1320 | /* |
| 1321 | * Scan for the requested network after waiting for existing |
| 1322 | * scans to finish. |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1323 | */ |
Daniel Drake | b4c3f34 | 2011-09-21 18:43:59 +0100 | [diff] [blame] | 1324 | lbs_deb_assoc("assoc: waiting for existing scans\n"); |
| 1325 | wait_event_interruptible_timeout(priv->scan_q, |
| 1326 | (priv->scan_req == NULL), |
| 1327 | (15 * HZ)); |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1328 | |
Daniel Drake | b4c3f34 | 2011-09-21 18:43:59 +0100 | [diff] [blame] | 1329 | creq = _new_connect_scan_req(wiphy, sme); |
| 1330 | if (!creq) { |
| 1331 | ret = -EINVAL; |
| 1332 | goto done; |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1333 | } |
| 1334 | |
Daniel Drake | b4c3f34 | 2011-09-21 18:43:59 +0100 | [diff] [blame] | 1335 | lbs_deb_assoc("assoc: scanning for compatible AP\n"); |
| 1336 | _internal_start_scan(priv, true, creq); |
| 1337 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1338 | lbs_deb_assoc("assoc: waiting for scan to complete\n"); |
| 1339 | wait_event_interruptible_timeout(priv->scan_q, |
| 1340 | (priv->scan_req == NULL), |
| 1341 | (15 * HZ)); |
| 1342 | lbs_deb_assoc("assoc: scanning competed\n"); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1343 | } |
| 1344 | |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1345 | /* Find the BSS we want using available scan results */ |
| 1346 | bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, |
| 1347 | sme->ssid, sme->ssid_len, |
| 1348 | WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1349 | if (!bss) { |
Joe Perches | f3a57fd | 2011-05-02 16:49:15 -0700 | [diff] [blame] | 1350 | wiphy_err(wiphy, "assoc: bss %pM not in scan results\n", |
| 1351 | sme->bssid); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1352 | ret = -ENOENT; |
| 1353 | goto done; |
| 1354 | } |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1355 | lbs_deb_assoc("trying %pM\n", bss->bssid); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1356 | lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n", |
| 1357 | sme->crypto.cipher_group, |
| 1358 | sme->key_idx, sme->key_len); |
| 1359 | |
| 1360 | /* As this is a new connection, clear locally stored WEP keys */ |
| 1361 | priv->wep_tx_key = 0; |
| 1362 | memset(priv->wep_key, 0, sizeof(priv->wep_key)); |
| 1363 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); |
| 1364 | |
| 1365 | /* set/remove WEP keys */ |
| 1366 | switch (sme->crypto.cipher_group) { |
| 1367 | case WLAN_CIPHER_SUITE_WEP40: |
| 1368 | case WLAN_CIPHER_SUITE_WEP104: |
| 1369 | /* Store provided WEP keys in priv-> */ |
| 1370 | priv->wep_tx_key = sme->key_idx; |
| 1371 | priv->wep_key_len[sme->key_idx] = sme->key_len; |
| 1372 | memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len); |
| 1373 | /* Set WEP keys and WEP mode */ |
| 1374 | lbs_set_wep_keys(priv); |
| 1375 | priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE; |
| 1376 | lbs_set_mac_control(priv); |
| 1377 | /* No RSN mode for WEP */ |
| 1378 | lbs_enable_rsn(priv, 0); |
| 1379 | break; |
| 1380 | case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */ |
| 1381 | /* |
| 1382 | * If we don't have no WEP, no WPA and no WPA2, |
| 1383 | * we remove all keys like in the WPA/WPA2 setup, |
| 1384 | * we just don't set RSN. |
| 1385 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1386 | * Therefore: fall-through |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1387 | */ |
| 1388 | case WLAN_CIPHER_SUITE_TKIP: |
| 1389 | case WLAN_CIPHER_SUITE_CCMP: |
| 1390 | /* Remove WEP keys and WEP mode */ |
| 1391 | lbs_remove_wep_keys(priv); |
| 1392 | priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE; |
| 1393 | lbs_set_mac_control(priv); |
| 1394 | |
| 1395 | /* clear the WPA/WPA2 keys */ |
| 1396 | lbs_set_key_material(priv, |
| 1397 | KEY_TYPE_ID_WEP, /* doesn't matter */ |
| 1398 | KEY_INFO_WPA_UNICAST, |
| 1399 | NULL, 0); |
| 1400 | lbs_set_key_material(priv, |
| 1401 | KEY_TYPE_ID_WEP, /* doesn't matter */ |
| 1402 | KEY_INFO_WPA_MCAST, |
| 1403 | NULL, 0); |
| 1404 | /* RSN mode for WPA/WPA2 */ |
| 1405 | lbs_enable_rsn(priv, sme->crypto.cipher_group != 0); |
| 1406 | break; |
| 1407 | default: |
Joe Perches | f3a57fd | 2011-05-02 16:49:15 -0700 | [diff] [blame] | 1408 | wiphy_err(wiphy, "unsupported cipher group 0x%x\n", |
| 1409 | sme->crypto.cipher_group); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1410 | ret = -ENOTSUPP; |
| 1411 | goto done; |
| 1412 | } |
| 1413 | |
| 1414 | lbs_set_authtype(priv, sme); |
| 1415 | lbs_set_radio(priv, preamble, 1); |
| 1416 | |
| 1417 | /* Do the actual association */ |
Dan Williams | cc02681 | 2010-08-04 00:43:47 -0500 | [diff] [blame] | 1418 | ret = lbs_associate(priv, bss, sme); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1419 | |
| 1420 | done: |
| 1421 | if (bss) |
| 1422 | cfg80211_put_bss(bss); |
| 1423 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1424 | return ret; |
| 1425 | } |
| 1426 | |
Daniel Drake | d2e7b34 | 2011-08-01 16:43:13 +0100 | [diff] [blame] | 1427 | int lbs_disconnect(struct lbs_private *priv, u16 reason) |
| 1428 | { |
| 1429 | struct cmd_ds_802_11_deauthenticate cmd; |
| 1430 | int ret; |
| 1431 | |
| 1432 | memset(&cmd, 0, sizeof(cmd)); |
| 1433 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 1434 | /* Mildly ugly to use a locally store my own BSSID ... */ |
| 1435 | memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN); |
| 1436 | cmd.reasoncode = cpu_to_le16(reason); |
| 1437 | |
| 1438 | ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd); |
| 1439 | if (ret) |
| 1440 | return ret; |
| 1441 | |
| 1442 | cfg80211_disconnected(priv->dev, |
| 1443 | reason, |
| 1444 | NULL, 0, |
| 1445 | GFP_KERNEL); |
| 1446 | priv->connect_status = LBS_DISCONNECTED; |
| 1447 | |
| 1448 | return 0; |
| 1449 | } |
| 1450 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1451 | static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| 1452 | u16 reason_code) |
| 1453 | { |
| 1454 | struct lbs_private *priv = wiphy_priv(wiphy); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1455 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1456 | if (dev == priv->mesh_dev) |
| 1457 | return -EOPNOTSUPP; |
| 1458 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1459 | lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code); |
| 1460 | |
| 1461 | /* store for lbs_cfg_ret_disconnect() */ |
| 1462 | priv->disassoc_reason = reason_code; |
| 1463 | |
Daniel Drake | d2e7b34 | 2011-08-01 16:43:13 +0100 | [diff] [blame] | 1464 | return lbs_disconnect(priv, reason_code); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1465 | } |
| 1466 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1467 | static int lbs_cfg_set_default_key(struct wiphy *wiphy, |
| 1468 | struct net_device *netdev, |
Johannes Berg | dbd2fd6 | 2010-12-09 19:58:59 +0100 | [diff] [blame] | 1469 | u8 key_index, bool unicast, |
| 1470 | bool multicast) |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1471 | { |
| 1472 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1473 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1474 | if (netdev == priv->mesh_dev) |
| 1475 | return -EOPNOTSUPP; |
| 1476 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1477 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1478 | |
| 1479 | if (key_index != priv->wep_tx_key) { |
| 1480 | lbs_deb_assoc("set_default_key: to %d\n", key_index); |
| 1481 | priv->wep_tx_key = key_index; |
| 1482 | lbs_set_wep_keys(priv); |
| 1483 | } |
| 1484 | |
| 1485 | return 0; |
| 1486 | } |
| 1487 | |
| 1488 | |
| 1489 | static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev, |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 1490 | u8 idx, bool pairwise, const u8 *mac_addr, |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1491 | struct key_params *params) |
| 1492 | { |
| 1493 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1494 | u16 key_info; |
| 1495 | u16 key_type; |
| 1496 | int ret = 0; |
| 1497 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1498 | if (netdev == priv->mesh_dev) |
| 1499 | return -EOPNOTSUPP; |
| 1500 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1501 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1502 | |
| 1503 | lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n", |
| 1504 | params->cipher, mac_addr); |
| 1505 | lbs_deb_assoc("add_key: key index %d, key len %d\n", |
| 1506 | idx, params->key_len); |
| 1507 | if (params->key_len) |
| 1508 | lbs_deb_hex(LBS_DEB_CFG80211, "KEY", |
| 1509 | params->key, params->key_len); |
| 1510 | |
| 1511 | lbs_deb_assoc("add_key: seq len %d\n", params->seq_len); |
| 1512 | if (params->seq_len) |
| 1513 | lbs_deb_hex(LBS_DEB_CFG80211, "SEQ", |
| 1514 | params->seq, params->seq_len); |
| 1515 | |
| 1516 | switch (params->cipher) { |
| 1517 | case WLAN_CIPHER_SUITE_WEP40: |
| 1518 | case WLAN_CIPHER_SUITE_WEP104: |
| 1519 | /* actually compare if something has changed ... */ |
| 1520 | if ((priv->wep_key_len[idx] != params->key_len) || |
| 1521 | memcmp(priv->wep_key[idx], |
| 1522 | params->key, params->key_len) != 0) { |
| 1523 | priv->wep_key_len[idx] = params->key_len; |
| 1524 | memcpy(priv->wep_key[idx], |
| 1525 | params->key, params->key_len); |
| 1526 | lbs_set_wep_keys(priv); |
| 1527 | } |
| 1528 | break; |
| 1529 | case WLAN_CIPHER_SUITE_TKIP: |
| 1530 | case WLAN_CIPHER_SUITE_CCMP: |
| 1531 | key_info = KEY_INFO_WPA_ENABLED | ((idx == 0) |
| 1532 | ? KEY_INFO_WPA_UNICAST |
| 1533 | : KEY_INFO_WPA_MCAST); |
| 1534 | key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP) |
| 1535 | ? KEY_TYPE_ID_TKIP |
| 1536 | : KEY_TYPE_ID_AES; |
| 1537 | lbs_set_key_material(priv, |
| 1538 | key_type, |
| 1539 | key_info, |
| 1540 | params->key, params->key_len); |
| 1541 | break; |
| 1542 | default: |
Joe Perches | f3a57fd | 2011-05-02 16:49:15 -0700 | [diff] [blame] | 1543 | wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1544 | ret = -ENOTSUPP; |
| 1545 | break; |
| 1546 | } |
| 1547 | |
| 1548 | return ret; |
| 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev, |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 1553 | u8 key_index, bool pairwise, const u8 *mac_addr) |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1554 | { |
| 1555 | |
| 1556 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1557 | |
| 1558 | lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n", |
| 1559 | key_index, mac_addr); |
| 1560 | |
| 1561 | #ifdef TODO |
| 1562 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1563 | /* |
| 1564 | * I think can keep this a NO-OP, because: |
| 1565 | |
| 1566 | * - we clear all keys whenever we do lbs_cfg_connect() anyway |
| 1567 | * - neither "iw" nor "wpa_supplicant" won't call this during |
| 1568 | * an ongoing connection |
| 1569 | * - TODO: but I have to check if this is still true when |
| 1570 | * I set the AP to periodic re-keying |
| 1571 | * - we've not kzallec() something when we've added a key at |
| 1572 | * lbs_cfg_connect() or lbs_cfg_add_key(). |
| 1573 | * |
| 1574 | * This causes lbs_cfg_del_key() only called at disconnect time, |
| 1575 | * where we'd just waste time deleting a key that is not going |
| 1576 | * to be used anyway. |
| 1577 | */ |
| 1578 | if (key_index < 3 && priv->wep_key_len[key_index]) { |
| 1579 | priv->wep_key_len[key_index] = 0; |
| 1580 | lbs_set_wep_keys(priv); |
| 1581 | } |
| 1582 | #endif |
| 1583 | |
| 1584 | return 0; |
| 1585 | } |
| 1586 | |
| 1587 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 1588 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1589 | * Get station |
| 1590 | */ |
| 1591 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1592 | static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev, |
| 1593 | u8 *mac, struct station_info *sinfo) |
| 1594 | { |
| 1595 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1596 | s8 signal, noise; |
| 1597 | int ret; |
| 1598 | size_t i; |
| 1599 | |
| 1600 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1601 | |
| 1602 | sinfo->filled |= STATION_INFO_TX_BYTES | |
| 1603 | STATION_INFO_TX_PACKETS | |
| 1604 | STATION_INFO_RX_BYTES | |
| 1605 | STATION_INFO_RX_PACKETS; |
| 1606 | sinfo->tx_bytes = priv->dev->stats.tx_bytes; |
| 1607 | sinfo->tx_packets = priv->dev->stats.tx_packets; |
| 1608 | sinfo->rx_bytes = priv->dev->stats.rx_bytes; |
| 1609 | sinfo->rx_packets = priv->dev->stats.rx_packets; |
| 1610 | |
| 1611 | /* Get current RSSI */ |
Dan Williams | 9fb7663 | 2010-07-27 12:55:21 -0700 | [diff] [blame] | 1612 | ret = lbs_get_rssi(priv, &signal, &noise); |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1613 | if (ret == 0) { |
| 1614 | sinfo->signal = signal; |
| 1615 | sinfo->filled |= STATION_INFO_SIGNAL; |
| 1616 | } |
| 1617 | |
| 1618 | /* Convert priv->cur_rate from hw_value to NL80211 value */ |
| 1619 | for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { |
| 1620 | if (priv->cur_rate == lbs_rates[i].hw_value) { |
| 1621 | sinfo->txrate.legacy = lbs_rates[i].bitrate; |
| 1622 | sinfo->filled |= STATION_INFO_TX_BITRATE; |
| 1623 | break; |
| 1624 | } |
| 1625 | } |
| 1626 | |
| 1627 | return 0; |
| 1628 | } |
| 1629 | |
| 1630 | |
| 1631 | |
| 1632 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 1633 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1634 | * Change interface |
| 1635 | */ |
| 1636 | |
| 1637 | static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev, |
| 1638 | enum nl80211_iftype type, u32 *flags, |
| 1639 | struct vif_params *params) |
| 1640 | { |
| 1641 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1642 | int ret = 0; |
| 1643 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1644 | if (dev == priv->mesh_dev) |
| 1645 | return -EOPNOTSUPP; |
| 1646 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1647 | switch (type) { |
| 1648 | case NL80211_IFTYPE_MONITOR: |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1649 | case NL80211_IFTYPE_STATION: |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1650 | case NL80211_IFTYPE_ADHOC: |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1651 | break; |
| 1652 | default: |
Daniel Drake | 5c1381a | 2011-10-14 12:05:26 +0100 | [diff] [blame] | 1653 | return -EOPNOTSUPP; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1654 | } |
| 1655 | |
Daniel Drake | 5c1381a | 2011-10-14 12:05:26 +0100 | [diff] [blame] | 1656 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1657 | |
| 1658 | if (priv->iface_running) |
| 1659 | ret = lbs_set_iface_type(priv, type); |
| 1660 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1661 | if (!ret) |
| 1662 | priv->wdev->iftype = type; |
| 1663 | |
| 1664 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1665 | return ret; |
| 1666 | } |
| 1667 | |
| 1668 | |
| 1669 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 1670 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1671 | * IBSS (Ad-Hoc) |
| 1672 | */ |
| 1673 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 1674 | /* |
| 1675 | * The firmware needs the following bits masked out of the beacon-derived |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1676 | * capability field when associating/joining to a BSS: |
| 1677 | * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused) |
| 1678 | */ |
| 1679 | #define CAPINFO_MASK (~(0xda00)) |
| 1680 | |
| 1681 | |
| 1682 | static void lbs_join_post(struct lbs_private *priv, |
| 1683 | struct cfg80211_ibss_params *params, |
| 1684 | u8 *bssid, u16 capability) |
| 1685 | { |
| 1686 | u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */ |
| 1687 | 2 + 4 + /* basic rates */ |
| 1688 | 2 + 1 + /* DS parameter */ |
| 1689 | 2 + 2 + /* atim */ |
| 1690 | 2 + 8]; /* extended rates */ |
| 1691 | u8 *fake = fake_ie; |
John W. Linville | 731f8e1 | 2011-11-11 13:49:45 -0500 | [diff] [blame] | 1692 | struct cfg80211_bss *bss; |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1693 | |
| 1694 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1695 | |
| 1696 | /* |
| 1697 | * For cfg80211_inform_bss, we'll need a fake IE, as we can't get |
| 1698 | * the real IE from the firmware. So we fabricate a fake IE based on |
| 1699 | * what the firmware actually sends (sniffed with wireshark). |
| 1700 | */ |
| 1701 | /* Fake SSID IE */ |
| 1702 | *fake++ = WLAN_EID_SSID; |
| 1703 | *fake++ = params->ssid_len; |
| 1704 | memcpy(fake, params->ssid, params->ssid_len); |
| 1705 | fake += params->ssid_len; |
| 1706 | /* Fake supported basic rates IE */ |
| 1707 | *fake++ = WLAN_EID_SUPP_RATES; |
| 1708 | *fake++ = 4; |
| 1709 | *fake++ = 0x82; |
| 1710 | *fake++ = 0x84; |
| 1711 | *fake++ = 0x8b; |
| 1712 | *fake++ = 0x96; |
| 1713 | /* Fake DS channel IE */ |
| 1714 | *fake++ = WLAN_EID_DS_PARAMS; |
| 1715 | *fake++ = 1; |
| 1716 | *fake++ = params->channel->hw_value; |
| 1717 | /* Fake IBSS params IE */ |
| 1718 | *fake++ = WLAN_EID_IBSS_PARAMS; |
| 1719 | *fake++ = 2; |
| 1720 | *fake++ = 0; /* ATIM=0 */ |
| 1721 | *fake++ = 0; |
| 1722 | /* Fake extended rates IE, TODO: don't add this for 802.11b only, |
| 1723 | * but I don't know how this could be checked */ |
| 1724 | *fake++ = WLAN_EID_EXT_SUPP_RATES; |
| 1725 | *fake++ = 8; |
| 1726 | *fake++ = 0x0c; |
| 1727 | *fake++ = 0x12; |
| 1728 | *fake++ = 0x18; |
| 1729 | *fake++ = 0x24; |
| 1730 | *fake++ = 0x30; |
| 1731 | *fake++ = 0x48; |
| 1732 | *fake++ = 0x60; |
| 1733 | *fake++ = 0x6c; |
| 1734 | lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie); |
| 1735 | |
John W. Linville | 731f8e1 | 2011-11-11 13:49:45 -0500 | [diff] [blame] | 1736 | bss = cfg80211_inform_bss(priv->wdev->wiphy, |
| 1737 | params->channel, |
| 1738 | bssid, |
| 1739 | 0, |
| 1740 | capability, |
| 1741 | params->beacon_interval, |
| 1742 | fake_ie, fake - fake_ie, |
| 1743 | 0, GFP_KERNEL); |
| 1744 | cfg80211_put_bss(bss); |
Kiran Divekar | e4fe4ea | 2010-06-04 23:20:37 -0700 | [diff] [blame] | 1745 | |
| 1746 | memcpy(priv->wdev->ssid, params->ssid, params->ssid_len); |
| 1747 | priv->wdev->ssid_len = params->ssid_len; |
| 1748 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1749 | cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL); |
| 1750 | |
| 1751 | /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */ |
| 1752 | priv->connect_status = LBS_CONNECTED; |
| 1753 | netif_carrier_on(priv->dev); |
| 1754 | if (!priv->tx_pending_len) |
| 1755 | netif_wake_queue(priv->dev); |
| 1756 | |
| 1757 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 1758 | } |
| 1759 | |
| 1760 | static int lbs_ibss_join_existing(struct lbs_private *priv, |
| 1761 | struct cfg80211_ibss_params *params, |
| 1762 | struct cfg80211_bss *bss) |
| 1763 | { |
| 1764 | const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES); |
| 1765 | struct cmd_ds_802_11_ad_hoc_join cmd; |
| 1766 | u8 preamble = RADIO_PREAMBLE_SHORT; |
| 1767 | int ret = 0; |
| 1768 | |
| 1769 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1770 | |
| 1771 | /* TODO: set preamble based on scan result */ |
| 1772 | ret = lbs_set_radio(priv, preamble, 1); |
| 1773 | if (ret) |
| 1774 | goto out; |
| 1775 | |
| 1776 | /* |
| 1777 | * Example CMD_802_11_AD_HOC_JOIN command: |
| 1778 | * |
| 1779 | * command 2c 00 CMD_802_11_AD_HOC_JOIN |
| 1780 | * size 65 00 |
| 1781 | * sequence xx xx |
| 1782 | * result 00 00 |
| 1783 | * bssid 02 27 27 97 2f 96 |
| 1784 | * ssid 49 42 53 53 00 00 00 00 |
| 1785 | * 00 00 00 00 00 00 00 00 |
| 1786 | * 00 00 00 00 00 00 00 00 |
| 1787 | * 00 00 00 00 00 00 00 00 |
| 1788 | * type 02 CMD_BSS_TYPE_IBSS |
| 1789 | * beacon period 64 00 |
| 1790 | * dtim period 00 |
| 1791 | * timestamp 00 00 00 00 00 00 00 00 |
| 1792 | * localtime 00 00 00 00 00 00 00 00 |
| 1793 | * IE DS 03 |
| 1794 | * IE DS len 01 |
| 1795 | * IE DS channel 01 |
| 1796 | * reserveed 00 00 00 00 |
| 1797 | * IE IBSS 06 |
| 1798 | * IE IBSS len 02 |
| 1799 | * IE IBSS atim 00 00 |
| 1800 | * reserved 00 00 00 00 |
| 1801 | * capability 02 00 |
| 1802 | * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00 |
| 1803 | * fail timeout ff 00 |
| 1804 | * probe delay 00 00 |
| 1805 | */ |
| 1806 | memset(&cmd, 0, sizeof(cmd)); |
| 1807 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 1808 | |
| 1809 | memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN); |
| 1810 | memcpy(cmd.bss.ssid, params->ssid, params->ssid_len); |
| 1811 | cmd.bss.type = CMD_BSS_TYPE_IBSS; |
| 1812 | cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval); |
| 1813 | cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS; |
| 1814 | cmd.bss.ds.header.len = 1; |
| 1815 | cmd.bss.ds.channel = params->channel->hw_value; |
| 1816 | cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS; |
| 1817 | cmd.bss.ibss.header.len = 2; |
| 1818 | cmd.bss.ibss.atimwindow = 0; |
| 1819 | cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK); |
| 1820 | |
| 1821 | /* set rates to the intersection of our rates and the rates in the |
| 1822 | bss */ |
| 1823 | if (!rates_eid) { |
| 1824 | lbs_add_rates(cmd.bss.rates); |
| 1825 | } else { |
| 1826 | int hw, i; |
| 1827 | u8 rates_max = rates_eid[1]; |
| 1828 | u8 *rates = cmd.bss.rates; |
| 1829 | for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) { |
| 1830 | u8 hw_rate = lbs_rates[hw].bitrate / 5; |
| 1831 | for (i = 0; i < rates_max; i++) { |
| 1832 | if (hw_rate == (rates_eid[i+2] & 0x7f)) { |
| 1833 | u8 rate = rates_eid[i+2]; |
| 1834 | if (rate == 0x02 || rate == 0x04 || |
| 1835 | rate == 0x0b || rate == 0x16) |
| 1836 | rate |= 0x80; |
| 1837 | *rates++ = rate; |
| 1838 | } |
| 1839 | } |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | /* Only v8 and below support setting this */ |
| 1844 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) { |
| 1845 | cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT); |
| 1846 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); |
| 1847 | } |
| 1848 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); |
| 1849 | if (ret) |
| 1850 | goto out; |
| 1851 | |
| 1852 | /* |
| 1853 | * This is a sample response to CMD_802_11_AD_HOC_JOIN: |
| 1854 | * |
| 1855 | * response 2c 80 |
| 1856 | * size 09 00 |
| 1857 | * sequence xx xx |
| 1858 | * result 00 00 |
| 1859 | * reserved 00 |
| 1860 | */ |
| 1861 | lbs_join_post(priv, params, bss->bssid, bss->capability); |
| 1862 | |
| 1863 | out: |
| 1864 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1865 | return ret; |
| 1866 | } |
| 1867 | |
| 1868 | |
| 1869 | |
| 1870 | static int lbs_ibss_start_new(struct lbs_private *priv, |
| 1871 | struct cfg80211_ibss_params *params) |
| 1872 | { |
| 1873 | struct cmd_ds_802_11_ad_hoc_start cmd; |
| 1874 | struct cmd_ds_802_11_ad_hoc_result *resp = |
| 1875 | (struct cmd_ds_802_11_ad_hoc_result *) &cmd; |
| 1876 | u8 preamble = RADIO_PREAMBLE_SHORT; |
| 1877 | int ret = 0; |
| 1878 | u16 capability; |
| 1879 | |
| 1880 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1881 | |
| 1882 | ret = lbs_set_radio(priv, preamble, 1); |
| 1883 | if (ret) |
| 1884 | goto out; |
| 1885 | |
| 1886 | /* |
| 1887 | * Example CMD_802_11_AD_HOC_START command: |
| 1888 | * |
| 1889 | * command 2b 00 CMD_802_11_AD_HOC_START |
| 1890 | * size b1 00 |
| 1891 | * sequence xx xx |
| 1892 | * result 00 00 |
| 1893 | * ssid 54 45 53 54 00 00 00 00 |
| 1894 | * 00 00 00 00 00 00 00 00 |
| 1895 | * 00 00 00 00 00 00 00 00 |
| 1896 | * 00 00 00 00 00 00 00 00 |
| 1897 | * bss type 02 |
| 1898 | * beacon period 64 00 |
| 1899 | * dtim period 00 |
| 1900 | * IE IBSS 06 |
| 1901 | * IE IBSS len 02 |
| 1902 | * IE IBSS atim 00 00 |
| 1903 | * reserved 00 00 00 00 |
| 1904 | * IE DS 03 |
| 1905 | * IE DS len 01 |
| 1906 | * IE DS channel 01 |
| 1907 | * reserved 00 00 00 00 |
| 1908 | * probe delay 00 00 |
| 1909 | * capability 02 00 |
| 1910 | * rates 82 84 8b 96 (basic rates with have bit 7 set) |
| 1911 | * 0c 12 18 24 30 48 60 6c |
| 1912 | * padding 100 bytes |
| 1913 | */ |
| 1914 | memset(&cmd, 0, sizeof(cmd)); |
| 1915 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 1916 | memcpy(cmd.ssid, params->ssid, params->ssid_len); |
| 1917 | cmd.bsstype = CMD_BSS_TYPE_IBSS; |
| 1918 | cmd.beaconperiod = cpu_to_le16(params->beacon_interval); |
| 1919 | cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS; |
| 1920 | cmd.ibss.header.len = 2; |
| 1921 | cmd.ibss.atimwindow = 0; |
| 1922 | cmd.ds.header.id = WLAN_EID_DS_PARAMS; |
| 1923 | cmd.ds.header.len = 1; |
| 1924 | cmd.ds.channel = params->channel->hw_value; |
| 1925 | /* Only v8 and below support setting probe delay */ |
| 1926 | if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) |
| 1927 | cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME); |
| 1928 | /* TODO: mix in WLAN_CAPABILITY_PRIVACY */ |
| 1929 | capability = WLAN_CAPABILITY_IBSS; |
| 1930 | cmd.capability = cpu_to_le16(capability); |
| 1931 | lbs_add_rates(cmd.rates); |
| 1932 | |
| 1933 | |
| 1934 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd); |
| 1935 | if (ret) |
| 1936 | goto out; |
| 1937 | |
| 1938 | /* |
| 1939 | * This is a sample response to CMD_802_11_AD_HOC_JOIN: |
| 1940 | * |
| 1941 | * response 2b 80 |
| 1942 | * size 14 00 |
| 1943 | * sequence xx xx |
| 1944 | * result 00 00 |
| 1945 | * reserved 00 |
| 1946 | * bssid 02 2b 7b 0f 86 0e |
| 1947 | */ |
| 1948 | lbs_join_post(priv, params, resp->bssid, capability); |
| 1949 | |
| 1950 | out: |
| 1951 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1952 | return ret; |
| 1953 | } |
| 1954 | |
| 1955 | |
| 1956 | static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| 1957 | struct cfg80211_ibss_params *params) |
| 1958 | { |
| 1959 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 1960 | int ret = 0; |
| 1961 | struct cfg80211_bss *bss; |
| 1962 | DECLARE_SSID_BUF(ssid_buf); |
| 1963 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 1964 | if (dev == priv->mesh_dev) |
| 1965 | return -EOPNOTSUPP; |
| 1966 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 1967 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 1968 | |
| 1969 | if (!params->channel) { |
| 1970 | ret = -ENOTSUPP; |
| 1971 | goto out; |
| 1972 | } |
| 1973 | |
| 1974 | ret = lbs_set_channel(priv, params->channel->hw_value); |
| 1975 | if (ret) |
| 1976 | goto out; |
| 1977 | |
| 1978 | /* Search if someone is beaconing. This assumes that the |
| 1979 | * bss list is populated already */ |
| 1980 | bss = cfg80211_get_bss(wiphy, params->channel, params->bssid, |
| 1981 | params->ssid, params->ssid_len, |
| 1982 | WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); |
| 1983 | |
| 1984 | if (bss) { |
| 1985 | ret = lbs_ibss_join_existing(priv, params, bss); |
| 1986 | cfg80211_put_bss(bss); |
| 1987 | } else |
| 1988 | ret = lbs_ibss_start_new(priv, params); |
| 1989 | |
| 1990 | |
| 1991 | out: |
| 1992 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 1993 | return ret; |
| 1994 | } |
| 1995 | |
| 1996 | |
| 1997 | static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| 1998 | { |
| 1999 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 2000 | struct cmd_ds_802_11_ad_hoc_stop cmd; |
| 2001 | int ret = 0; |
| 2002 | |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 2003 | if (dev == priv->mesh_dev) |
| 2004 | return -EOPNOTSUPP; |
| 2005 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2006 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2007 | |
| 2008 | memset(&cmd, 0, sizeof(cmd)); |
| 2009 | cmd.hdr.size = cpu_to_le16(sizeof(cmd)); |
| 2010 | ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd); |
| 2011 | |
| 2012 | /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */ |
| 2013 | lbs_mac_event_disconnected(priv); |
| 2014 | |
| 2015 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 2016 | return ret; |
| 2017 | } |
| 2018 | |
| 2019 | |
| 2020 | |
| 2021 | |
Randy Dunlap | 8973a6e | 2011-04-26 15:25:29 -0700 | [diff] [blame] | 2022 | /* |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2023 | * Initialization |
| 2024 | */ |
| 2025 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2026 | static struct cfg80211_ops lbs_cfg80211_ops = { |
| 2027 | .set_channel = lbs_cfg_set_channel, |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2028 | .scan = lbs_cfg_scan, |
| 2029 | .connect = lbs_cfg_connect, |
| 2030 | .disconnect = lbs_cfg_disconnect, |
| 2031 | .add_key = lbs_cfg_add_key, |
| 2032 | .del_key = lbs_cfg_del_key, |
| 2033 | .set_default_key = lbs_cfg_set_default_key, |
| 2034 | .get_station = lbs_cfg_get_station, |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2035 | .change_virtual_intf = lbs_change_intf, |
| 2036 | .join_ibss = lbs_join_ibss, |
| 2037 | .leave_ibss = lbs_leave_ibss, |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2038 | }; |
| 2039 | |
| 2040 | |
| 2041 | /* |
| 2042 | * At this time lbs_private *priv doesn't even exist, so we just allocate |
| 2043 | * memory and don't initialize the wiphy further. This is postponed until we |
| 2044 | * can talk to the firmware and happens at registration time in |
| 2045 | * lbs_cfg_wiphy_register(). |
| 2046 | */ |
| 2047 | struct wireless_dev *lbs_cfg_alloc(struct device *dev) |
| 2048 | { |
| 2049 | int ret = 0; |
| 2050 | struct wireless_dev *wdev; |
| 2051 | |
| 2052 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2053 | |
| 2054 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| 2055 | if (!wdev) { |
| 2056 | dev_err(dev, "cannot allocate wireless device\n"); |
| 2057 | return ERR_PTR(-ENOMEM); |
| 2058 | } |
| 2059 | |
| 2060 | wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private)); |
| 2061 | if (!wdev->wiphy) { |
| 2062 | dev_err(dev, "cannot allocate wiphy\n"); |
| 2063 | ret = -ENOMEM; |
| 2064 | goto err_wiphy_new; |
| 2065 | } |
| 2066 | |
| 2067 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 2068 | return wdev; |
| 2069 | |
| 2070 | err_wiphy_new: |
| 2071 | kfree(wdev); |
| 2072 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 2073 | return ERR_PTR(ret); |
| 2074 | } |
| 2075 | |
| 2076 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2077 | static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv) |
| 2078 | { |
| 2079 | struct region_code_mapping { |
| 2080 | const char *cn; |
| 2081 | int code; |
| 2082 | }; |
| 2083 | |
| 2084 | /* Section 5.17.2 */ |
Joe Perches | 482e039 | 2010-11-20 18:38:58 -0800 | [diff] [blame] | 2085 | static const struct region_code_mapping regmap[] = { |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2086 | {"US ", 0x10}, /* US FCC */ |
| 2087 | {"CA ", 0x20}, /* Canada */ |
| 2088 | {"EU ", 0x30}, /* ETSI */ |
| 2089 | {"ES ", 0x31}, /* Spain */ |
| 2090 | {"FR ", 0x32}, /* France */ |
| 2091 | {"JP ", 0x40}, /* Japan */ |
| 2092 | }; |
| 2093 | size_t i; |
| 2094 | |
| 2095 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2096 | |
| 2097 | for (i = 0; i < ARRAY_SIZE(regmap); i++) |
| 2098 | if (regmap[i].code == priv->regioncode) { |
| 2099 | regulatory_hint(priv->wdev->wiphy, regmap[i].cn); |
| 2100 | break; |
| 2101 | } |
| 2102 | |
| 2103 | lbs_deb_leave(LBS_DEB_CFG80211); |
| 2104 | } |
| 2105 | |
| 2106 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2107 | /* |
| 2108 | * This function get's called after lbs_setup_firmware() determined the |
| 2109 | * firmware capabities. So we can setup the wiphy according to our |
| 2110 | * hardware/firmware. |
| 2111 | */ |
| 2112 | int lbs_cfg_register(struct lbs_private *priv) |
| 2113 | { |
| 2114 | struct wireless_dev *wdev = priv->wdev; |
| 2115 | int ret; |
| 2116 | |
| 2117 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2118 | |
| 2119 | wdev->wiphy->max_scan_ssids = 1; |
| 2120 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| 2121 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2122 | wdev->wiphy->interface_modes = |
| 2123 | BIT(NL80211_IFTYPE_STATION) | |
| 2124 | BIT(NL80211_IFTYPE_ADHOC); |
| 2125 | if (lbs_rtap_supported(priv)) |
| 2126 | wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
Daniel Drake | 49fee69 | 2011-07-21 20:43:17 +0100 | [diff] [blame] | 2127 | if (lbs_mesh_activated(priv)) |
| 2128 | wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT); |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2129 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2130 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz; |
| 2131 | |
| 2132 | /* |
| 2133 | * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have |
| 2134 | * never seen a firmware without WPA |
| 2135 | */ |
| 2136 | wdev->wiphy->cipher_suites = cipher_suites; |
| 2137 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 2138 | wdev->wiphy->reg_notifier = lbs_reg_notifier; |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2139 | |
| 2140 | ret = wiphy_register(wdev->wiphy); |
| 2141 | if (ret < 0) |
Joe Perches | 0e4e06a | 2011-05-02 16:49:14 -0700 | [diff] [blame] | 2142 | pr_err("cannot register wiphy device\n"); |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2143 | |
Daniel Mack | 7371400 | 2010-03-29 17:14:18 +0200 | [diff] [blame] | 2144 | priv->wiphy_registered = true; |
| 2145 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2146 | ret = register_netdev(priv->dev); |
| 2147 | if (ret) |
Joe Perches | 0e4e06a | 2011-05-02 16:49:14 -0700 | [diff] [blame] | 2148 | pr_err("cannot register network device\n"); |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2149 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2150 | INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); |
| 2151 | |
| 2152 | lbs_cfg_set_regulatory_hint(priv); |
| 2153 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2154 | lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); |
| 2155 | return ret; |
| 2156 | } |
| 2157 | |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 2158 | int lbs_reg_notifier(struct wiphy *wiphy, |
| 2159 | struct regulatory_request *request) |
| 2160 | { |
Dan Williams | cc4b9d3 | 2010-07-27 12:56:05 -0700 | [diff] [blame] | 2161 | struct lbs_private *priv = wiphy_priv(wiphy); |
| 2162 | int ret; |
| 2163 | |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 2164 | lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain " |
| 2165 | "callback for domain %c%c\n", request->alpha2[0], |
| 2166 | request->alpha2[1]); |
| 2167 | |
Dan Williams | cc4b9d3 | 2010-07-27 12:56:05 -0700 | [diff] [blame] | 2168 | ret = lbs_set_11d_domain_info(priv, request, wiphy->bands); |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 2169 | |
| 2170 | lbs_deb_leave(LBS_DEB_CFG80211); |
Dan Williams | cc4b9d3 | 2010-07-27 12:56:05 -0700 | [diff] [blame] | 2171 | return ret; |
Kiran Divekar | 1047d5e | 2010-06-04 23:20:42 -0700 | [diff] [blame] | 2172 | } |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2173 | |
Kiran Divekar | e86dc1c | 2010-06-14 22:01:26 +0530 | [diff] [blame] | 2174 | void lbs_scan_deinit(struct lbs_private *priv) |
| 2175 | { |
| 2176 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2177 | cancel_delayed_work_sync(&priv->scan_work); |
| 2178 | } |
| 2179 | |
| 2180 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2181 | void lbs_cfg_free(struct lbs_private *priv) |
| 2182 | { |
| 2183 | struct wireless_dev *wdev = priv->wdev; |
| 2184 | |
| 2185 | lbs_deb_enter(LBS_DEB_CFG80211); |
| 2186 | |
| 2187 | if (!wdev) |
| 2188 | return; |
| 2189 | |
Daniel Mack | 7371400 | 2010-03-29 17:14:18 +0200 | [diff] [blame] | 2190 | if (priv->wiphy_registered) |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2191 | wiphy_unregister(wdev->wiphy); |
Daniel Mack | 7371400 | 2010-03-29 17:14:18 +0200 | [diff] [blame] | 2192 | |
| 2193 | if (wdev->wiphy) |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2194 | wiphy_free(wdev->wiphy); |
Daniel Mack | 7371400 | 2010-03-29 17:14:18 +0200 | [diff] [blame] | 2195 | |
Holger Schurig | ff9fc79 | 2009-10-06 16:31:54 +0200 | [diff] [blame] | 2196 | kfree(wdev); |
| 2197 | } |