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1// SPDX-License-Identifier: GPL-2.02/*3 * Implement cfg80211 ("iw") support.4 *5 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany6 * Holger Schurig <hs4233@mail.mn-solutions.de>7 *8 */9 10#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt11 12#include <linux/hardirq.h>13#include <linux/sched.h>14#include <linux/wait.h>15#include <linux/slab.h>16#include <linux/ieee80211.h>17#include <net/cfg80211.h>18#include <linux/unaligned.h>19 20#include "decl.h"21#include "cfg.h"22#include "cmd.h"23#include "mesh.h"24 25 26#define CHAN2G(_channel, _freq, _flags) { \27 .band = NL80211_BAND_2GHZ, \28 .center_freq = (_freq), \29 .hw_value = (_channel), \30 .flags = (_flags), \31 .max_antenna_gain = 0, \32 .max_power = 30, \33}34 35static struct ieee80211_channel lbs_2ghz_channels[] = {36 CHAN2G(1, 2412, 0),37 CHAN2G(2, 2417, 0),38 CHAN2G(3, 2422, 0),39 CHAN2G(4, 2427, 0),40 CHAN2G(5, 2432, 0),41 CHAN2G(6, 2437, 0),42 CHAN2G(7, 2442, 0),43 CHAN2G(8, 2447, 0),44 CHAN2G(9, 2452, 0),45 CHAN2G(10, 2457, 0),46 CHAN2G(11, 2462, 0),47 CHAN2G(12, 2467, 0),48 CHAN2G(13, 2472, 0),49 CHAN2G(14, 2484, 0),50};51 52#define RATETAB_ENT(_rate, _hw_value, _flags) { \53 .bitrate = (_rate), \54 .hw_value = (_hw_value), \55 .flags = (_flags), \56}57 58 59/* Table 6 in section 3.2.1.1 */60static struct ieee80211_rate lbs_rates[] = {61 RATETAB_ENT(10, 0, 0),62 RATETAB_ENT(20, 1, 0),63 RATETAB_ENT(55, 2, 0),64 RATETAB_ENT(110, 3, 0),65 RATETAB_ENT(60, 9, 0),66 RATETAB_ENT(90, 6, 0),67 RATETAB_ENT(120, 7, 0),68 RATETAB_ENT(180, 8, 0),69 RATETAB_ENT(240, 9, 0),70 RATETAB_ENT(360, 10, 0),71 RATETAB_ENT(480, 11, 0),72 RATETAB_ENT(540, 12, 0),73};74 75static struct ieee80211_supported_band lbs_band_2ghz = {76 .channels = lbs_2ghz_channels,77 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),78 .bitrates = lbs_rates,79 .n_bitrates = ARRAY_SIZE(lbs_rates),80};81 82 83static const u32 cipher_suites[] = {84 WLAN_CIPHER_SUITE_WEP40,85 WLAN_CIPHER_SUITE_WEP104,86 WLAN_CIPHER_SUITE_TKIP,87 WLAN_CIPHER_SUITE_CCMP,88};89 90/* Time to stay on the channel */91#define LBS_DWELL_PASSIVE 10092#define LBS_DWELL_ACTIVE 4093 94 95/***************************************************************************96 * Misc utility functions97 *98 * TLVs are Marvell specific. They are very similar to IEs, they have the99 * same structure: type, length, data*. The only difference: for IEs, the100 * type and length are u8, but for TLVs they're __le16.101 */102 103/*104 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1105 * in the firmware spec106 */107static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)108{109 int ret = -ENOTSUPP;110 111 switch (auth_type) {112 case NL80211_AUTHTYPE_OPEN_SYSTEM:113 case NL80211_AUTHTYPE_SHARED_KEY:114 ret = auth_type;115 break;116 case NL80211_AUTHTYPE_AUTOMATIC:117 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;118 break;119 case NL80211_AUTHTYPE_NETWORK_EAP:120 ret = 0x80;121 break;122 default:123 /* silence compiler */124 break;125 }126 return ret;127}128 129 130/*131 * Various firmware commands need the list of supported rates, but with132 * the hight-bit set for basic rates133 */134static int lbs_add_rates(u8 *rates)135{136 size_t i;137 138 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {139 u8 rate = lbs_rates[i].bitrate / 5;140 if (rate == 0x02 || rate == 0x04 ||141 rate == 0x0b || rate == 0x16)142 rate |= 0x80;143 rates[i] = rate;144 }145 return ARRAY_SIZE(lbs_rates);146}147 148 149/***************************************************************************150 * TLV utility functions151 *152 * TLVs are Marvell specific. They are very similar to IEs, they have the153 * same structure: type, length, data*. The only difference: for IEs, the154 * type and length are u8, but for TLVs they're __le16.155 */156 157 158/*159 * Add ssid TLV160 */161#define LBS_MAX_SSID_TLV_SIZE \162 (sizeof(struct mrvl_ie_header) \163 + IEEE80211_MAX_SSID_LEN)164 165static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)166{167 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;168 169 /*170 * TLV-ID SSID 00 00171 * length 06 00172 * ssid 4d 4e 54 45 53 54173 */174 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);175 ssid_tlv->header.len = cpu_to_le16(ssid_len);176 memcpy(ssid_tlv->ssid, ssid, ssid_len);177 return sizeof(ssid_tlv->header) + ssid_len;178}179 180 181/*182 * Add channel list TLV (section 8.4.2)183 *184 * Actual channel data comes from priv->wdev->wiphy->channels.185 */186#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \187 (sizeof(struct mrvl_ie_header) \188 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))189 190static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,191 int last_channel, int active_scan)192{193 int chanscanparamsize = sizeof(struct chanscanparamset) *194 (last_channel - priv->scan_channel);195 196 struct mrvl_ie_header *header = (void *) tlv;197 198 /*199 * TLV-ID CHANLIST 01 01200 * length 0e 00201 * channel 00 01 00 00 00 64 00202 * radio type 00203 * channel 01204 * scan type 00205 * min scan time 00 00206 * max scan time 64 00207 * channel 2 00 02 00 00 00 64 00208 *209 */210 211 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);212 header->len = cpu_to_le16(chanscanparamsize);213 tlv += sizeof(struct mrvl_ie_header);214 215 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,216 last_channel); */217 memset(tlv, 0, chanscanparamsize);218 219 while (priv->scan_channel < last_channel) {220 struct chanscanparamset *param = (void *) tlv;221 222 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;223 param->channumber =224 priv->scan_req->channels[priv->scan_channel]->hw_value;225 if (active_scan) {226 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);227 } else {228 param->chanscanmode.passivescan = 1;229 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);230 }231 tlv += sizeof(struct chanscanparamset);232 priv->scan_channel++;233 }234 return sizeof(struct mrvl_ie_header) + chanscanparamsize;235}236 237 238/*239 * Add rates TLV240 *241 * The rates are in lbs_bg_rates[], but for the 802.11b242 * rates the high bit is set. We add this TLV only because243 * there's a firmware which otherwise doesn't report all244 * APs in range.245 */246#define LBS_MAX_RATES_TLV_SIZE \247 (sizeof(struct mrvl_ie_header) \248 + (ARRAY_SIZE(lbs_rates)))249 250/* Adds a TLV with all rates the hardware supports */251static int lbs_add_supported_rates_tlv(u8 *tlv)252{253 size_t i;254 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;255 256 /*257 * TLV-ID RATES 01 00258 * length 0e 00259 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c260 */261 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);262 tlv += sizeof(rate_tlv->header);263 i = lbs_add_rates(tlv);264 tlv += i;265 rate_tlv->header.len = cpu_to_le16(i);266 return sizeof(rate_tlv->header) + i;267}268 269/* Add common rates from a TLV and return the new end of the TLV */270static u8 *271add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)272{273 int hw, ap, ap_max = ie[1];274 u8 hw_rate;275 276 if (ap_max > MAX_RATES) {277 lbs_deb_assoc("invalid rates\n");278 return tlv;279 }280 /* Advance past IE header */281 ie += 2;282 283 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);284 285 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {286 hw_rate = lbs_rates[hw].bitrate / 5;287 for (ap = 0; ap < ap_max; ap++) {288 if (hw_rate == (ie[ap] & 0x7f)) {289 *tlv++ = ie[ap];290 *nrates = *nrates + 1;291 }292 }293 }294 return tlv;295}296 297/*298 * Adds a TLV with all rates the hardware *and* BSS supports.299 */300static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)301{302 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;303 const u8 *rates_eid, *ext_rates_eid;304 int n = 0;305 306 rcu_read_lock();307 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);308 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);309 310 /*311 * 01 00 TLV_TYPE_RATES312 * 04 00 len313 * 82 84 8b 96 rates314 */315 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);316 tlv += sizeof(rate_tlv->header);317 318 /* Add basic rates */319 if (rates_eid) {320 tlv = add_ie_rates(tlv, rates_eid, &n);321 322 /* Add extended rates, if any */323 if (ext_rates_eid)324 tlv = add_ie_rates(tlv, ext_rates_eid, &n);325 } else {326 lbs_deb_assoc("assoc: bss had no basic rate IE\n");327 /* Fallback: add basic 802.11b rates */328 *tlv++ = 0x82;329 *tlv++ = 0x84;330 *tlv++ = 0x8b;331 *tlv++ = 0x96;332 n = 4;333 }334 rcu_read_unlock();335 336 rate_tlv->header.len = cpu_to_le16(n);337 return sizeof(rate_tlv->header) + n;338}339 340 341/*342 * Add auth type TLV.343 *344 * This is only needed for newer firmware (V9 and up).345 */346#define LBS_MAX_AUTH_TYPE_TLV_SIZE \347 sizeof(struct mrvl_ie_auth_type)348 349static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)350{351 struct mrvl_ie_auth_type *auth = (void *) tlv;352 353 /*354 * 1f 01 TLV_TYPE_AUTH_TYPE355 * 01 00 len356 * 01 auth type357 */358 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);359 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));360 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));361 return sizeof(*auth);362}363 364 365/*366 * Add channel (phy ds) TLV367 */368#define LBS_MAX_CHANNEL_TLV_SIZE \369 sizeof(struct mrvl_ie_header)370 371static int lbs_add_channel_tlv(u8 *tlv, u8 channel)372{373 struct mrvl_ie_ds_param_set *ds = (void *) tlv;374 375 /*376 * 03 00 TLV_TYPE_PHY_DS377 * 01 00 len378 * 06 channel379 */380 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);381 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));382 ds->channel = channel;383 return sizeof(*ds);384}385 386 387/*388 * Add (empty) CF param TLV of the form:389 */390#define LBS_MAX_CF_PARAM_TLV_SIZE \391 sizeof(struct mrvl_ie_header)392 393static int lbs_add_cf_param_tlv(u8 *tlv)394{395 struct mrvl_ie_cf_param_set *cf = (void *)tlv;396 397 /*398 * 04 00 TLV_TYPE_CF399 * 06 00 len400 * 00 cfpcnt401 * 00 cfpperiod402 * 00 00 cfpmaxduration403 * 00 00 cfpdurationremaining404 */405 cf->header.type = cpu_to_le16(TLV_TYPE_CF);406 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));407 return sizeof(*cf);408}409 410/*411 * Add WPA TLV412 */413#define LBS_MAX_WPA_TLV_SIZE \414 (sizeof(struct mrvl_ie_header) \415 + 128 /* TODO: I guessed the size */)416 417static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)418{419 struct mrvl_ie_data *wpatlv = (struct mrvl_ie_data *)tlv;420 const struct element *wpaie;421 422 /* Find the first RSN or WPA IE to use */423 wpaie = cfg80211_find_elem(WLAN_EID_RSN, ie, ie_len);424 if (!wpaie)425 wpaie = cfg80211_find_vendor_elem(WLAN_OUI_MICROSOFT,426 WLAN_OUI_TYPE_MICROSOFT_WPA,427 ie, ie_len);428 if (!wpaie || wpaie->datalen > 128)429 return 0;430 431 /*432 * Convert the found IE to a TLV. IEs use u8 for the header,433 * u8 type434 * u8 len435 * u8[] data436 * but TLVs use __le16 instead:437 * __le16 type438 * __le16 len439 * u8[] data440 */441 wpatlv->header.type = cpu_to_le16(wpaie->id);442 wpatlv->header.len = cpu_to_le16(wpaie->datalen);443 memcpy(wpatlv->data, wpaie->data, wpaie->datalen);444 445 /* Return the total number of bytes added to the TLV buffer */446 return sizeof(struct mrvl_ie_header) + wpaie->datalen;447}448 449/* Add WPS enrollee TLV450 */451#define LBS_MAX_WPS_ENROLLEE_TLV_SIZE \452 (sizeof(struct mrvl_ie_header) \453 + 256)454 455static int lbs_add_wps_enrollee_tlv(u8 *tlv, const u8 *ie, size_t ie_len)456{457 struct mrvl_ie_data *wpstlv = (struct mrvl_ie_data *)tlv;458 const struct element *wpsie;459 460 /* Look for a WPS IE and add it to the probe request */461 wpsie = cfg80211_find_vendor_elem(WLAN_OUI_MICROSOFT,462 WLAN_OUI_TYPE_MICROSOFT_WPS,463 ie, ie_len);464 if (!wpsie)465 return 0;466 467 /* Convert the WPS IE to a TLV. The IE looks like this:468 * u8 type (WLAN_EID_VENDOR_SPECIFIC)469 * u8 len470 * u8[] data471 * but the TLV will look like this instead:472 * __le16 type (TLV_TYPE_WPS_ENROLLEE)473 * __le16 len474 * u8[] data475 */476 wpstlv->header.type = cpu_to_le16(TLV_TYPE_WPS_ENROLLEE);477 wpstlv->header.len = cpu_to_le16(wpsie->datalen);478 memcpy(wpstlv->data, wpsie->data, wpsie->datalen);479 480 /* Return the total number of bytes added to the TLV buffer */481 return sizeof(struct mrvl_ie_header) + wpsie->datalen;482}483 484/*485 * Set Channel486 */487 488static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,489 struct cfg80211_chan_def *chandef)490{491 struct lbs_private *priv = wiphy_priv(wiphy);492 int ret = -ENOTSUPP;493 494 if (cfg80211_get_chandef_type(chandef) != NL80211_CHAN_NO_HT)495 goto out;496 497 ret = lbs_set_channel(priv, chandef->chan->hw_value);498 499 out:500 return ret;501}502 503static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,504 struct net_device *netdev,505 struct ieee80211_channel *channel)506{507 struct lbs_private *priv = wiphy_priv(wiphy);508 int ret = -ENOTSUPP;509 510 if (netdev != priv->mesh_dev)511 goto out;512 513 ret = lbs_mesh_set_channel(priv, channel->hw_value);514 515 out:516 return ret;517}518 519 520 521/*522 * Scanning523 */524 525/*526 * When scanning, the firmware doesn't send a nul packet with the power-safe527 * bit to the AP. So we cannot stay away from our current channel too long,528 * otherwise we loose data. So take a "nap" while scanning every other529 * while.530 */531#define LBS_SCAN_BEFORE_NAP 4532 533 534/*535 * When the firmware reports back a scan-result, it gives us an "u8 rssi",536 * which isn't really an RSSI, as it becomes larger when moving away from537 * the AP. Anyway, we need to convert that into mBm.538 */539#define LBS_SCAN_RSSI_TO_MBM(rssi) \540 ((-(int)rssi + 3)*100)541 542static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,543 struct cmd_header *resp)544{545 struct cfg80211_bss *bss;546 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;547 int bsssize;548 const u8 *pos;549 const u8 *tsfdesc;550 int tsfsize;551 int i;552 int ret = -EILSEQ;553 554 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);555 556 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",557 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));558 559 if (scanresp->nr_sets == 0) {560 ret = 0;561 goto done;562 }563 564 /*565 * The general layout of the scan response is described in chapter566 * 5.7.1. Basically we have a common part, then any number of BSS567 * descriptor sections. Finally we have section with the same number568 * of TSFs.569 *570 * cmd_ds_802_11_scan_rsp571 * cmd_header572 * pos_size573 * nr_sets574 * bssdesc 1575 * bssid576 * rssi577 * timestamp578 * intvl579 * capa580 * IEs581 * bssdesc 2582 * bssdesc n583 * MrvlIEtypes_TsfFimestamp_t584 * TSF for BSS 1585 * TSF for BSS 2586 * TSF for BSS n587 */588 589 pos = scanresp->bssdesc_and_tlvbuffer;590 591 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,592 bsssize);593 594 tsfdesc = pos + bsssize;595 tsfsize = 4 + 8 * scanresp->nr_sets;596 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);597 598 /* Validity check: we expect a Marvell-Local TLV */599 i = get_unaligned_le16(tsfdesc);600 tsfdesc += 2;601 if (i != TLV_TYPE_TSFTIMESTAMP) {602 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);603 goto done;604 }605 606 /*607 * Validity check: the TLV holds TSF values with 8 bytes each, so608 * the size in the TLV must match the nr_sets value609 */610 i = get_unaligned_le16(tsfdesc);611 tsfdesc += 2;612 if (i / 8 != scanresp->nr_sets) {613 lbs_deb_scan("scan response: invalid number of TSF timestamp "614 "sets (expected %d got %d)\n", scanresp->nr_sets,615 i / 8);616 goto done;617 }618 619 for (i = 0; i < scanresp->nr_sets; i++) {620 const u8 *bssid;621 const u8 *ie;622 int left;623 int ielen;624 int rssi;625 u16 intvl;626 u16 capa;627 int chan_no = -1;628 const u8 *ssid = NULL;629 u8 ssid_len = 0;630 631 int len = get_unaligned_le16(pos);632 pos += 2;633 634 /* BSSID */635 bssid = pos;636 pos += ETH_ALEN;637 /* RSSI */638 rssi = *pos++;639 /* Packet time stamp */640 pos += 8;641 /* Beacon interval */642 intvl = get_unaligned_le16(pos);643 pos += 2;644 /* Capabilities */645 capa = get_unaligned_le16(pos);646 pos += 2;647 648 /* To find out the channel, we must parse the IEs */649 ie = pos;650 /*651 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon652 * interval, capabilities653 */654 ielen = left = len - (6 + 1 + 8 + 2 + 2);655 while (left >= 2) {656 u8 id, elen;657 id = *pos++;658 elen = *pos++;659 left -= 2;660 if (elen > left) {661 lbs_deb_scan("scan response: invalid IE fmt\n");662 goto done;663 }664 665 if (id == WLAN_EID_DS_PARAMS)666 chan_no = *pos;667 if (id == WLAN_EID_SSID) {668 ssid = pos;669 ssid_len = elen;670 }671 left -= elen;672 pos += elen;673 }674 675 /* No channel, no luck */676 if (chan_no != -1) {677 struct wiphy *wiphy = priv->wdev->wiphy;678 int freq = ieee80211_channel_to_frequency(chan_no,679 NL80211_BAND_2GHZ);680 struct ieee80211_channel *channel =681 ieee80211_get_channel(wiphy, freq);682 683 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",684 bssid, capa, chan_no, ssid_len, ssid,685 LBS_SCAN_RSSI_TO_MBM(rssi)/100);686 687 if (channel &&688 !(channel->flags & IEEE80211_CHAN_DISABLED)) {689 bss = cfg80211_inform_bss(wiphy, channel,690 CFG80211_BSS_FTYPE_UNKNOWN,691 bssid, get_unaligned_le64(tsfdesc),692 capa, intvl, ie, ielen,693 LBS_SCAN_RSSI_TO_MBM(rssi),694 GFP_KERNEL);695 cfg80211_put_bss(wiphy, bss);696 }697 } else698 lbs_deb_scan("scan response: missing BSS channel IE\n");699 700 tsfdesc += 8;701 }702 ret = 0;703 704 done:705 return ret;706}707 708 709/*710 * Our scan command contains a TLV, consisting of a SSID TLV, a channel list711 * TLV, a rates TLV, and an optional WPS IE. Determine the maximum size of them:712 */713#define LBS_SCAN_MAX_CMD_SIZE \714 (sizeof(struct cmd_ds_802_11_scan) \715 + LBS_MAX_SSID_TLV_SIZE \716 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \717 + LBS_MAX_RATES_TLV_SIZE \718 + LBS_MAX_WPS_ENROLLEE_TLV_SIZE)719 720/*721 * Assumes priv->scan_req is initialized and valid722 * Assumes priv->scan_channel is initialized723 */724static void lbs_scan_worker(struct work_struct *work)725{726 struct lbs_private *priv =727 container_of(work, struct lbs_private, scan_work.work);728 struct cmd_ds_802_11_scan *scan_cmd;729 u8 *tlv; /* pointer into our current, growing TLV storage area */730 int last_channel;731 int running, carrier;732 733 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);734 if (scan_cmd == NULL)735 return;736 737 /* prepare fixed part of scan command */738 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;739 740 /* stop network while we're away from our main channel */741 running = !netif_queue_stopped(priv->dev);742 carrier = netif_carrier_ok(priv->dev);743 if (running)744 netif_stop_queue(priv->dev);745 if (carrier)746 netif_carrier_off(priv->dev);747 748 /* prepare fixed part of scan command */749 tlv = scan_cmd->tlvbuffer;750 751 /* add SSID TLV */752 if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)753 tlv += lbs_add_ssid_tlv(tlv,754 priv->scan_req->ssids[0].ssid,755 priv->scan_req->ssids[0].ssid_len);756 757 /* add channel TLVs */758 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;759 if (last_channel > priv->scan_req->n_channels)760 last_channel = priv->scan_req->n_channels;761 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,762 priv->scan_req->n_ssids);763 764 /* add rates TLV */765 tlv += lbs_add_supported_rates_tlv(tlv);766 767 /* add optional WPS enrollee TLV */768 if (priv->scan_req->ie && priv->scan_req->ie_len)769 tlv += lbs_add_wps_enrollee_tlv(tlv, priv->scan_req->ie,770 priv->scan_req->ie_len);771 772 if (priv->scan_channel < priv->scan_req->n_channels) {773 cancel_delayed_work(&priv->scan_work);774 if (netif_running(priv->dev))775 queue_delayed_work(priv->work_thread, &priv->scan_work,776 msecs_to_jiffies(300));777 }778 779 /* This is the final data we are about to send */780 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);781 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,782 sizeof(*scan_cmd));783 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,784 tlv - scan_cmd->tlvbuffer);785 786 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,787 le16_to_cpu(scan_cmd->hdr.size),788 lbs_ret_scan, 0);789 790 if (priv->scan_channel >= priv->scan_req->n_channels) {791 /* Mark scan done */792 cancel_delayed_work(&priv->scan_work);793 lbs_scan_done(priv);794 }795 796 /* Restart network */797 if (carrier)798 netif_carrier_on(priv->dev);799 if (running && !priv->tx_pending_len)800 netif_wake_queue(priv->dev);801 802 kfree(scan_cmd);803 804 /* Wake up anything waiting on scan completion */805 if (priv->scan_req == NULL) {806 lbs_deb_scan("scan: waking up waiters\n");807 wake_up_all(&priv->scan_q);808 }809}810 811static void _internal_start_scan(struct lbs_private *priv, bool internal,812 struct cfg80211_scan_request *request)813{814 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",815 request->n_ssids, request->n_channels, request->ie_len);816 817 priv->scan_channel = 0;818 priv->scan_req = request;819 priv->internal_scan = internal;820 821 queue_delayed_work(priv->work_thread, &priv->scan_work,822 msecs_to_jiffies(50));823}824 825/*826 * Clean up priv->scan_req. Should be used to handle the allocation details.827 */828void lbs_scan_done(struct lbs_private *priv)829{830 WARN_ON(!priv->scan_req);831 832 if (priv->internal_scan) {833 kfree(priv->scan_req);834 } else {835 struct cfg80211_scan_info info = {836 .aborted = false,837 };838 839 cfg80211_scan_done(priv->scan_req, &info);840 }841 842 priv->scan_req = NULL;843}844 845static int lbs_cfg_scan(struct wiphy *wiphy,846 struct cfg80211_scan_request *request)847{848 struct lbs_private *priv = wiphy_priv(wiphy);849 int ret = 0;850 851 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {852 /* old scan request not yet processed */853 ret = -EAGAIN;854 goto out;855 }856 857 _internal_start_scan(priv, false, request);858 859 if (priv->surpriseremoved)860 ret = -EIO;861 862 out:863 return ret;864}865 866 867 868 869/*870 * Events871 */872 873void lbs_send_disconnect_notification(struct lbs_private *priv,874 bool locally_generated)875{876 cfg80211_disconnected(priv->dev, 0, NULL, 0, locally_generated,877 GFP_KERNEL);878}879 880void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)881{882 cfg80211_michael_mic_failure(priv->dev,883 priv->assoc_bss,884 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?885 NL80211_KEYTYPE_GROUP :886 NL80211_KEYTYPE_PAIRWISE,887 -1,888 NULL,889 GFP_KERNEL);890}891 892 893 894 895/*896 * Connect/disconnect897 */898 899 900/*901 * This removes all WEP keys902 */903static int lbs_remove_wep_keys(struct lbs_private *priv)904{905 struct cmd_ds_802_11_set_wep cmd;906 int ret;907 908 memset(&cmd, 0, sizeof(cmd));909 cmd.hdr.size = cpu_to_le16(sizeof(cmd));910 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);911 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);912 913 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);914 915 return ret;916}917 918/*919 * Set WEP keys920 */921static int lbs_set_wep_keys(struct lbs_private *priv)922{923 struct cmd_ds_802_11_set_wep cmd;924 int i;925 int ret;926 927 /*928 * command 13 00929 * size 50 00930 * sequence xx xx931 * result 00 00932 * action 02 00 ACT_ADD933 * transmit key 00 00934 * type for key 1 01 WEP40935 * type for key 2 00936 * type for key 3 00937 * type for key 4 00938 * key 1 39 39 39 39 39 00 00 00939 * 00 00 00 00 00 00 00 00940 * key 2 00 00 00 00 00 00 00 00941 * 00 00 00 00 00 00 00 00942 * key 3 00 00 00 00 00 00 00 00943 * 00 00 00 00 00 00 00 00944 * key 4 00 00 00 00 00 00 00 00945 */946 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||947 priv->wep_key_len[2] || priv->wep_key_len[3]) {948 /* Only set wep keys if we have at least one of them */949 memset(&cmd, 0, sizeof(cmd));950 cmd.hdr.size = cpu_to_le16(sizeof(cmd));951 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);952 cmd.action = cpu_to_le16(CMD_ACT_ADD);953 954 for (i = 0; i < 4; i++) {955 switch (priv->wep_key_len[i]) {956 case WLAN_KEY_LEN_WEP40:957 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;958 break;959 case WLAN_KEY_LEN_WEP104:960 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;961 break;962 default:963 cmd.keytype[i] = 0;964 break;965 }966 memcpy(cmd.keymaterial[i], priv->wep_key[i],967 priv->wep_key_len[i]);968 }969 970 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);971 } else {972 /* Otherwise remove all wep keys */973 ret = lbs_remove_wep_keys(priv);974 }975 976 return ret;977}978 979 980/*981 * Enable/Disable RSN status982 */983static int lbs_enable_rsn(struct lbs_private *priv, int enable)984{985 struct cmd_ds_802_11_enable_rsn cmd;986 int ret;987 988 /*989 * cmd 2f 00990 * size 0c 00991 * sequence xx xx992 * result 00 00993 * action 01 00 ACT_SET994 * enable 01 00995 */996 memset(&cmd, 0, sizeof(cmd));997 cmd.hdr.size = cpu_to_le16(sizeof(cmd));998 cmd.action = cpu_to_le16(CMD_ACT_SET);999 cmd.enable = cpu_to_le16(enable);1000 1001 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);1002 1003 return ret;1004}1005 1006 1007/*1008 * Set WPA/WPA key material1009 */1010 1011/*1012 * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we1013 * get rid of WEXT, this should go into host.h1014 */1015 1016struct cmd_key_material {1017 struct cmd_header hdr;1018 1019 __le16 action;1020 struct MrvlIEtype_keyParamSet param;1021} __packed;1022 1023static int lbs_set_key_material(struct lbs_private *priv,1024 int key_type, int key_info,1025 const u8 *key, u16 key_len)1026{1027 struct cmd_key_material cmd;1028 int ret;1029 1030 /*1031 * Example for WPA (TKIP):1032 *1033 * cmd 5e 001034 * size 34 001035 * sequence xx xx1036 * result 00 001037 * action 01 001038 * TLV type 00 01 key param1039 * length 00 261040 * key type 01 00 TKIP1041 * key info 06 00 UNICAST | ENABLED1042 * key len 20 001043 * key 32 bytes1044 */1045 memset(&cmd, 0, sizeof(cmd));1046 cmd.hdr.size = cpu_to_le16(sizeof(cmd));1047 cmd.action = cpu_to_le16(CMD_ACT_SET);1048 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);1049 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);1050 cmd.param.keytypeid = cpu_to_le16(key_type);1051 cmd.param.keyinfo = cpu_to_le16(key_info);1052 cmd.param.keylen = cpu_to_le16(key_len);1053 if (key && key_len)1054 memcpy(cmd.param.key, key, key_len);1055 1056 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);1057 1058 return ret;1059}1060 1061 1062/*1063 * Sets the auth type (open, shared, etc) in the firmware. That1064 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware1065 * command doesn't send an authentication frame at all, it just1066 * stores the auth_type.1067 */1068static int lbs_set_authtype(struct lbs_private *priv,1069 struct cfg80211_connect_params *sme)1070{1071 struct cmd_ds_802_11_authenticate cmd;1072 int ret;1073 1074 /*1075 * cmd 11 001076 * size 19 001077 * sequence xx xx1078 * result 00 001079 * BSS id 00 13 19 80 da 301080 * auth type 001081 * reserved 00 00 00 00 00 00 00 00 00 001082 */1083 memset(&cmd, 0, sizeof(cmd));1084 cmd.hdr.size = cpu_to_le16(sizeof(cmd));1085 if (sme->bssid)1086 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);1087 /* convert auth_type */1088 ret = lbs_auth_to_authtype(sme->auth_type);1089 if (ret < 0)1090 goto done;1091 1092 cmd.authtype = ret;1093 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);1094 1095 done:1096 return ret;1097}1098 1099 1100/*1101 * Create association request1102 */1103#define LBS_ASSOC_MAX_CMD_SIZE \1104 (sizeof(struct cmd_ds_802_11_associate) \1105 + LBS_MAX_SSID_TLV_SIZE \1106 + LBS_MAX_CHANNEL_TLV_SIZE \1107 + LBS_MAX_CF_PARAM_TLV_SIZE \1108 + LBS_MAX_AUTH_TYPE_TLV_SIZE \1109 + LBS_MAX_WPA_TLV_SIZE)1110 1111static int lbs_associate(struct lbs_private *priv,1112 struct cfg80211_bss *bss,1113 struct cfg80211_connect_params *sme)1114{1115 struct cmd_ds_802_11_associate_response *resp;1116 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,1117 GFP_KERNEL);1118 const u8 *ssid_eid;1119 size_t len, resp_ie_len;1120 int status;1121 int ret;1122 u8 *pos;1123 u8 *tmp;1124 1125 if (!cmd) {1126 ret = -ENOMEM;1127 goto done;1128 }1129 pos = &cmd->iebuf[0];1130 1131 /*1132 * cmd 50 001133 * length 34 001134 * sequence xx xx1135 * result 00 001136 * BSS id 00 13 19 80 da 301137 * capabilities 11 001138 * listen interval 0a 001139 * beacon interval 00 001140 * DTIM period 001141 * TLVs xx (up to 512 bytes)1142 */1143 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);1144 1145 /* Fill in static fields */1146 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);1147 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);1148 cmd->capability = cpu_to_le16(bss->capability);1149 1150 /* add SSID TLV */1151 rcu_read_lock();1152 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);1153 if (ssid_eid)1154 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);1155 else1156 lbs_deb_assoc("no SSID\n");1157 rcu_read_unlock();1158 1159 /* add DS param TLV */1160 if (bss->channel)1161 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);1162 else1163 lbs_deb_assoc("no channel\n");1164 1165 /* add (empty) CF param TLV */1166 pos += lbs_add_cf_param_tlv(pos);1167 1168 /* add rates TLV */1169 tmp = pos + 4; /* skip Marvell IE header */1170 pos += lbs_add_common_rates_tlv(pos, bss);1171 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);1172 1173 /* add auth type TLV */1174 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)1175 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);1176 1177 /* add WPA/WPA2 TLV */1178 if (sme->ie && sme->ie_len)1179 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);1180 1181 len = sizeof(*cmd) + (u16)(pos - (u8 *) &cmd->iebuf);1182 cmd->hdr.size = cpu_to_le16(len);1183 1184 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,1185 le16_to_cpu(cmd->hdr.size));1186 1187 /* store for later use */1188 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);1189 1190 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);1191 if (ret)1192 goto done;1193 1194 /* generate connect message to cfg80211 */1195 1196 resp = (void *) cmd; /* recast for easier field access */1197 status = le16_to_cpu(resp->statuscode);1198 1199 /* Older FW versions map the IEEE 802.11 Status Code in the association1200 * response to the following values returned in resp->statuscode:1201 *1202 * IEEE Status Code Marvell Status Code1203 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS1204 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED1205 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED1206 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED1207 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED1208 * others -> 0x0003 ASSOC_RESULT_REFUSED1209 *1210 * Other response codes:1211 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)1212 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for1213 * association response from the AP)1214 */1215 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {1216 switch (status) {1217 case 0:1218 break;1219 case 1:1220 lbs_deb_assoc("invalid association parameters\n");1221 status = WLAN_STATUS_CAPS_UNSUPPORTED;1222 break;1223 case 2:1224 lbs_deb_assoc("timer expired while waiting for AP\n");1225 status = WLAN_STATUS_AUTH_TIMEOUT;1226 break;1227 case 3:1228 lbs_deb_assoc("association refused by AP\n");1229 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;1230 break;1231 case 4:1232 lbs_deb_assoc("authentication refused by AP\n");1233 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;1234 break;1235 default:1236 lbs_deb_assoc("association failure %d\n", status);1237 /* v5 OLPC firmware does return the AP status code if1238 * it's not one of the values above. Let that through.1239 */1240 break;1241 }1242 }1243 1244 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "1245 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),1246 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));1247 1248 resp_ie_len = le16_to_cpu(resp->hdr.size)1249 - sizeof(resp->hdr)1250 - 6;1251 cfg80211_connect_result(priv->dev,1252 priv->assoc_bss,1253 sme->ie, sme->ie_len,1254 resp->iebuf, resp_ie_len,1255 status,1256 GFP_KERNEL);1257 1258 if (status == 0) {1259 /* TODO: get rid of priv->connect_status */1260 priv->connect_status = LBS_CONNECTED;1261 netif_carrier_on(priv->dev);1262 if (!priv->tx_pending_len)1263 netif_tx_wake_all_queues(priv->dev);1264 }1265 1266 kfree(cmd);1267done:1268 return ret;1269}1270 1271static struct cfg80211_scan_request *1272_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)1273{1274 struct cfg80211_scan_request *creq = NULL;1275 int i, n_channels = ieee80211_get_num_supported_channels(wiphy);1276 enum nl80211_band band;1277 1278 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +1279 n_channels * sizeof(void *),1280 GFP_ATOMIC);1281 if (!creq)1282 return NULL;1283 1284 /* SSIDs come after channels */1285 creq->ssids = (void *)&creq->channels[n_channels];1286 creq->n_channels = n_channels;1287 creq->n_ssids = 1;1288 1289 /* Scan all available channels */1290 i = 0;1291 for (band = 0; band < NUM_NL80211_BANDS; band++) {1292 int j;1293 1294 if (!wiphy->bands[band])1295 continue;1296 1297 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {1298 /* ignore disabled channels */1299 if (wiphy->bands[band]->channels[j].flags &1300 IEEE80211_CHAN_DISABLED)1301 continue;1302 1303 creq->channels[i] = &wiphy->bands[band]->channels[j];1304 i++;1305 }1306 }1307 if (i) {1308 /* Set real number of channels specified in creq->channels[] */1309 creq->n_channels = i;1310 1311 /* Scan for the SSID we're going to connect to */1312 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);1313 creq->ssids[0].ssid_len = sme->ssid_len;1314 } else {1315 /* No channels found... */1316 kfree(creq);1317 creq = NULL;1318 }1319 1320 return creq;1321}1322 1323static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,1324 struct cfg80211_connect_params *sme)1325{1326 struct lbs_private *priv = wiphy_priv(wiphy);1327 struct cfg80211_bss *bss = NULL;1328 int ret = 0;1329 u8 preamble = RADIO_PREAMBLE_SHORT;1330 1331 if (dev == priv->mesh_dev)1332 return -EOPNOTSUPP;1333 1334 if (!sme->bssid) {1335 struct cfg80211_scan_request *creq;1336 1337 /*1338 * Scan for the requested network after waiting for existing1339 * scans to finish.1340 */1341 lbs_deb_assoc("assoc: waiting for existing scans\n");1342 wait_event_interruptible_timeout(priv->scan_q,1343 (priv->scan_req == NULL),1344 (15 * HZ));1345 1346 creq = _new_connect_scan_req(wiphy, sme);1347 if (!creq) {1348 ret = -EINVAL;1349 goto done;1350 }1351 1352 lbs_deb_assoc("assoc: scanning for compatible AP\n");1353 _internal_start_scan(priv, true, creq);1354 1355 lbs_deb_assoc("assoc: waiting for scan to complete\n");1356 wait_event_interruptible_timeout(priv->scan_q,1357 (priv->scan_req == NULL),1358 (15 * HZ));1359 lbs_deb_assoc("assoc: scanning completed\n");1360 }1361 1362 /* Find the BSS we want using available scan results */1363 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,1364 sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,1365 IEEE80211_PRIVACY_ANY);1366 if (!bss) {1367 wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",1368 sme->bssid);1369 ret = -ENOENT;1370 goto done;1371 }1372 lbs_deb_assoc("trying %pM\n", bss->bssid);1373 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",1374 sme->crypto.cipher_group,1375 sme->key_idx, sme->key_len);1376 1377 /* As this is a new connection, clear locally stored WEP keys */1378 priv->wep_tx_key = 0;1379 memset(priv->wep_key, 0, sizeof(priv->wep_key));1380 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));1381 1382 /* set/remove WEP keys */1383 switch (sme->crypto.cipher_group) {1384 case WLAN_CIPHER_SUITE_WEP40:1385 case WLAN_CIPHER_SUITE_WEP104:1386 /* Store provided WEP keys in priv-> */1387 priv->wep_tx_key = sme->key_idx;1388 priv->wep_key_len[sme->key_idx] = sme->key_len;1389 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);1390 /* Set WEP keys and WEP mode */1391 lbs_set_wep_keys(priv);1392 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;1393 lbs_set_mac_control(priv);1394 /* No RSN mode for WEP */1395 lbs_enable_rsn(priv, 0);1396 break;1397 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */1398 /*1399 * If we don't have no WEP, no WPA and no WPA2,1400 * we remove all keys like in the WPA/WPA2 setup,1401 * we just don't set RSN.1402 *1403 * Therefore: fall-through1404 */1405 case WLAN_CIPHER_SUITE_TKIP:1406 case WLAN_CIPHER_SUITE_CCMP:1407 /* Remove WEP keys and WEP mode */1408 lbs_remove_wep_keys(priv);1409 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;1410 lbs_set_mac_control(priv);1411 1412 /* clear the WPA/WPA2 keys */1413 lbs_set_key_material(priv,1414 KEY_TYPE_ID_WEP, /* doesn't matter */1415 KEY_INFO_WPA_UNICAST,1416 NULL, 0);1417 lbs_set_key_material(priv,1418 KEY_TYPE_ID_WEP, /* doesn't matter */1419 KEY_INFO_WPA_MCAST,1420 NULL, 0);1421 /* RSN mode for WPA/WPA2 */1422 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);1423 break;1424 default:1425 wiphy_err(wiphy, "unsupported cipher group 0x%x\n",1426 sme->crypto.cipher_group);1427 ret = -ENOTSUPP;1428 goto done;1429 }1430 1431 ret = lbs_set_authtype(priv, sme);1432 if (ret == -ENOTSUPP) {1433 wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);1434 goto done;1435 }1436 1437 lbs_set_radio(priv, preamble, 1);1438 1439 /* Do the actual association */1440 ret = lbs_associate(priv, bss, sme);1441 1442 done:1443 if (bss)1444 cfg80211_put_bss(wiphy, bss);1445 return ret;1446}1447 1448int lbs_disconnect(struct lbs_private *priv, u16 reason)1449{1450 struct cmd_ds_802_11_deauthenticate cmd;1451 int ret;1452 1453 memset(&cmd, 0, sizeof(cmd));1454 cmd.hdr.size = cpu_to_le16(sizeof(cmd));1455 /* Mildly ugly to use a locally store my own BSSID ... */1456 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);1457 cmd.reasoncode = cpu_to_le16(reason);1458 1459 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);1460 if (ret)1461 return ret;1462 1463 cfg80211_disconnected(priv->dev,1464 reason,1465 NULL, 0, true,1466 GFP_KERNEL);1467 priv->connect_status = LBS_DISCONNECTED;1468 1469 return 0;1470}1471 1472static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,1473 u16 reason_code)1474{1475 struct lbs_private *priv = wiphy_priv(wiphy);1476 1477 if (dev == priv->mesh_dev)1478 return -EOPNOTSUPP;1479 1480 /* store for lbs_cfg_ret_disconnect() */1481 priv->disassoc_reason = reason_code;1482 1483 return lbs_disconnect(priv, reason_code);1484}1485 1486static int lbs_cfg_set_default_key(struct wiphy *wiphy,1487 struct net_device *netdev, int link_id,1488 u8 key_index, bool unicast,1489 bool multicast)1490{1491 struct lbs_private *priv = wiphy_priv(wiphy);1492 1493 if (netdev == priv->mesh_dev)1494 return -EOPNOTSUPP;1495 1496 if (key_index != priv->wep_tx_key) {1497 lbs_deb_assoc("set_default_key: to %d\n", key_index);1498 priv->wep_tx_key = key_index;1499 lbs_set_wep_keys(priv);1500 }1501 1502 return 0;1503}1504 1505 1506static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,1507 int link_id, u8 idx, bool pairwise,1508 const u8 *mac_addr, struct key_params *params)1509{1510 struct lbs_private *priv = wiphy_priv(wiphy);1511 u16 key_info;1512 u16 key_type;1513 int ret = 0;1514 1515 if (netdev == priv->mesh_dev)1516 return -EOPNOTSUPP;1517 1518 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",1519 params->cipher, mac_addr);1520 lbs_deb_assoc("add_key: key index %d, key len %d\n",1521 idx, params->key_len);1522 if (params->key_len)1523 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",1524 params->key, params->key_len);1525 1526 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);1527 if (params->seq_len)1528 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",1529 params->seq, params->seq_len);1530 1531 switch (params->cipher) {1532 case WLAN_CIPHER_SUITE_WEP40:1533 case WLAN_CIPHER_SUITE_WEP104:1534 /* actually compare if something has changed ... */1535 if ((priv->wep_key_len[idx] != params->key_len) ||1536 memcmp(priv->wep_key[idx],1537 params->key, params->key_len) != 0) {1538 priv->wep_key_len[idx] = params->key_len;1539 memcpy(priv->wep_key[idx],1540 params->key, params->key_len);1541 lbs_set_wep_keys(priv);1542 }1543 break;1544 case WLAN_CIPHER_SUITE_TKIP:1545 case WLAN_CIPHER_SUITE_CCMP:1546 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)1547 ? KEY_INFO_WPA_UNICAST1548 : KEY_INFO_WPA_MCAST);1549 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)1550 ? KEY_TYPE_ID_TKIP1551 : KEY_TYPE_ID_AES;1552 lbs_set_key_material(priv,1553 key_type,1554 key_info,1555 params->key, params->key_len);1556 break;1557 default:1558 wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);1559 ret = -ENOTSUPP;1560 break;1561 }1562 1563 return ret;1564}1565 1566 1567static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,1568 int link_id, u8 key_index, bool pairwise,1569 const u8 *mac_addr)1570{1571 1572 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",1573 key_index, mac_addr);1574 1575#ifdef TODO1576 struct lbs_private *priv = wiphy_priv(wiphy);1577 /*1578 * I think can keep this a NO-OP, because:1579 1580 * - we clear all keys whenever we do lbs_cfg_connect() anyway1581 * - neither "iw" nor "wpa_supplicant" won't call this during1582 * an ongoing connection1583 * - TODO: but I have to check if this is still true when1584 * I set the AP to periodic re-keying1585 * - we've not kzallec() something when we've added a key at1586 * lbs_cfg_connect() or lbs_cfg_add_key().1587 *1588 * This causes lbs_cfg_del_key() only called at disconnect time,1589 * where we'd just waste time deleting a key that is not going1590 * to be used anyway.1591 */1592 if (key_index < 3 && priv->wep_key_len[key_index]) {1593 priv->wep_key_len[key_index] = 0;1594 lbs_set_wep_keys(priv);1595 }1596#endif1597 1598 return 0;1599}1600 1601 1602/*1603 * Get station1604 */1605 1606static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,1607 const u8 *mac, struct station_info *sinfo)1608{1609 struct lbs_private *priv = wiphy_priv(wiphy);1610 s8 signal, noise;1611 int ret;1612 size_t i;1613 1614 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES) |1615 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |1616 BIT_ULL(NL80211_STA_INFO_RX_BYTES) |1617 BIT_ULL(NL80211_STA_INFO_RX_PACKETS);1618 sinfo->tx_bytes = priv->dev->stats.tx_bytes;1619 sinfo->tx_packets = priv->dev->stats.tx_packets;1620 sinfo->rx_bytes = priv->dev->stats.rx_bytes;1621 sinfo->rx_packets = priv->dev->stats.rx_packets;1622 1623 /* Get current RSSI */1624 ret = lbs_get_rssi(priv, &signal, &noise);1625 if (ret == 0) {1626 sinfo->signal = signal;1627 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);1628 }1629 1630 /* Convert priv->cur_rate from hw_value to NL80211 value */1631 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {1632 if (priv->cur_rate == lbs_rates[i].hw_value) {1633 sinfo->txrate.legacy = lbs_rates[i].bitrate;1634 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);1635 break;1636 }1637 }1638 1639 return 0;1640}1641 1642 1643 1644 1645/*1646 * Change interface1647 */1648 1649static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,1650 enum nl80211_iftype type,1651 struct vif_params *params)1652{1653 struct lbs_private *priv = wiphy_priv(wiphy);1654 int ret = 0;1655 1656 if (dev == priv->mesh_dev)1657 return -EOPNOTSUPP;1658 1659 switch (type) {1660 case NL80211_IFTYPE_MONITOR:1661 case NL80211_IFTYPE_STATION:1662 case NL80211_IFTYPE_ADHOC:1663 break;1664 default:1665 return -EOPNOTSUPP;1666 }1667 1668 if (priv->iface_running)1669 ret = lbs_set_iface_type(priv, type);1670 1671 if (!ret)1672 priv->wdev->iftype = type;1673 1674 return ret;1675}1676 1677 1678 1679/*1680 * IBSS (Ad-Hoc)1681 */1682 1683/*1684 * The firmware needs the following bits masked out of the beacon-derived1685 * capability field when associating/joining to a BSS:1686 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)1687 */1688#define CAPINFO_MASK (~(0xda00))1689 1690 1691static void lbs_join_post(struct lbs_private *priv,1692 struct cfg80211_ibss_params *params,1693 u8 *bssid, u16 capability)1694{1695 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */1696 2 + 4 + /* basic rates */1697 2 + 1 + /* DS parameter */1698 2 + 2 + /* atim */1699 2 + 8]; /* extended rates */1700 u8 *fake = fake_ie;1701 struct cfg80211_bss *bss;1702 1703 /*1704 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get1705 * the real IE from the firmware. So we fabricate a fake IE based on1706 * what the firmware actually sends (sniffed with wireshark).1707 */1708 /* Fake SSID IE */1709 *fake++ = WLAN_EID_SSID;1710 *fake++ = params->ssid_len;1711 memcpy(fake, params->ssid, params->ssid_len);1712 fake += params->ssid_len;1713 /* Fake supported basic rates IE */1714 *fake++ = WLAN_EID_SUPP_RATES;1715 *fake++ = 4;1716 *fake++ = 0x82;1717 *fake++ = 0x84;1718 *fake++ = 0x8b;1719 *fake++ = 0x96;1720 /* Fake DS channel IE */1721 *fake++ = WLAN_EID_DS_PARAMS;1722 *fake++ = 1;1723 *fake++ = params->chandef.chan->hw_value;1724 /* Fake IBSS params IE */1725 *fake++ = WLAN_EID_IBSS_PARAMS;1726 *fake++ = 2;1727 *fake++ = 0; /* ATIM=0 */1728 *fake++ = 0;1729 /* Fake extended rates IE, TODO: don't add this for 802.11b only,1730 * but I don't know how this could be checked */1731 *fake++ = WLAN_EID_EXT_SUPP_RATES;1732 *fake++ = 8;1733 *fake++ = 0x0c;1734 *fake++ = 0x12;1735 *fake++ = 0x18;1736 *fake++ = 0x24;1737 *fake++ = 0x30;1738 *fake++ = 0x48;1739 *fake++ = 0x60;1740 *fake++ = 0x6c;1741 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);1742 1743 bss = cfg80211_inform_bss(priv->wdev->wiphy,1744 params->chandef.chan,1745 CFG80211_BSS_FTYPE_UNKNOWN,1746 bssid,1747 0,1748 capability,1749 params->beacon_interval,1750 fake_ie, fake - fake_ie,1751 0, GFP_KERNEL);1752 cfg80211_put_bss(priv->wdev->wiphy, bss);1753 1754 cfg80211_ibss_joined(priv->dev, bssid, params->chandef.chan,1755 GFP_KERNEL);1756 1757 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */1758 priv->connect_status = LBS_CONNECTED;1759 netif_carrier_on(priv->dev);1760 if (!priv->tx_pending_len)1761 netif_wake_queue(priv->dev);1762}1763 1764static int lbs_ibss_join_existing(struct lbs_private *priv,1765 struct cfg80211_ibss_params *params,1766 struct cfg80211_bss *bss)1767{1768 const u8 *rates_eid;1769 struct cmd_ds_802_11_ad_hoc_join cmd;1770 u8 preamble = RADIO_PREAMBLE_SHORT;1771 int ret = 0;1772 int hw, i;1773 u8 rates_max;1774 u8 *rates;1775 1776 /* TODO: set preamble based on scan result */1777 ret = lbs_set_radio(priv, preamble, 1);1778 if (ret)1779 goto out;1780 1781 /*1782 * Example CMD_802_11_AD_HOC_JOIN command:1783 *1784 * command 2c 00 CMD_802_11_AD_HOC_JOIN1785 * size 65 001786 * sequence xx xx1787 * result 00 001788 * bssid 02 27 27 97 2f 961789 * ssid 49 42 53 53 00 00 00 001790 * 00 00 00 00 00 00 00 001791 * 00 00 00 00 00 00 00 001792 * 00 00 00 00 00 00 00 001793 * type 02 CMD_BSS_TYPE_IBSS1794 * beacon period 64 001795 * dtim period 001796 * timestamp 00 00 00 00 00 00 00 001797 * localtime 00 00 00 00 00 00 00 001798 * IE DS 031799 * IE DS len 011800 * IE DS channel 011801 * reserveed 00 00 00 001802 * IE IBSS 061803 * IE IBSS len 021804 * IE IBSS atim 00 001805 * reserved 00 00 00 001806 * capability 02 001807 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 001808 * fail timeout ff 001809 * probe delay 00 001810 */1811 memset(&cmd, 0, sizeof(cmd));1812 cmd.hdr.size = cpu_to_le16(sizeof(cmd));1813 1814 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);1815 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);1816 cmd.bss.type = CMD_BSS_TYPE_IBSS;1817 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);1818 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;1819 cmd.bss.ds.header.len = 1;1820 cmd.bss.ds.channel = params->chandef.chan->hw_value;1821 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;1822 cmd.bss.ibss.header.len = 2;1823 cmd.bss.ibss.atimwindow = 0;1824 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);1825 1826 /* set rates to the intersection of our rates and the rates in the1827 bss */1828 rcu_read_lock();1829 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);1830 if (!rates_eid) {1831 lbs_add_rates(cmd.bss.rates);1832 } else {1833 rates_max = rates_eid[1];1834 if (rates_max > MAX_RATES) {1835 lbs_deb_join("invalid rates");1836 rcu_read_unlock();1837 ret = -EINVAL;1838 goto out;1839 }1840 rates = cmd.bss.rates;1841 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {1842 u8 hw_rate = lbs_rates[hw].bitrate / 5;1843 for (i = 0; i < rates_max; i++) {1844 if (hw_rate == (rates_eid[i+2] & 0x7f)) {1845 u8 rate = rates_eid[i+2];1846 if (rate == 0x02 || rate == 0x04 ||1847 rate == 0x0b || rate == 0x16)1848 rate |= 0x80;1849 *rates++ = rate;1850 }1851 }1852 }1853 }1854 rcu_read_unlock();1855 1856 /* Only v8 and below support setting this */1857 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {1858 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);1859 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);1860 }1861 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);1862 if (ret)1863 goto out;1864 1865 /*1866 * This is a sample response to CMD_802_11_AD_HOC_JOIN:1867 *1868 * response 2c 801869 * size 09 001870 * sequence xx xx1871 * result 00 001872 * reserved 001873 */1874 lbs_join_post(priv, params, bss->bssid, bss->capability);1875 1876 out:1877 return ret;1878}1879 1880 1881 1882static int lbs_ibss_start_new(struct lbs_private *priv,1883 struct cfg80211_ibss_params *params)1884{1885 struct cmd_ds_802_11_ad_hoc_start cmd;1886 struct cmd_ds_802_11_ad_hoc_result *resp =1887 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;1888 u8 preamble = RADIO_PREAMBLE_SHORT;1889 int ret = 0;1890 u16 capability;1891 1892 ret = lbs_set_radio(priv, preamble, 1);1893 if (ret)1894 goto out;1895 1896 /*1897 * Example CMD_802_11_AD_HOC_START command:1898 *1899 * command 2b 00 CMD_802_11_AD_HOC_START1900 * size b1 001901 * sequence xx xx1902 * result 00 001903 * ssid 54 45 53 54 00 00 00 001904 * 00 00 00 00 00 00 00 001905 * 00 00 00 00 00 00 00 001906 * 00 00 00 00 00 00 00 001907 * bss type 021908 * beacon period 64 001909 * dtim period 001910 * IE IBSS 061911 * IE IBSS len 021912 * IE IBSS atim 00 001913 * reserved 00 00 00 001914 * IE DS 031915 * IE DS len 011916 * IE DS channel 011917 * reserved 00 00 00 001918 * probe delay 00 001919 * capability 02 001920 * rates 82 84 8b 96 (basic rates with have bit 7 set)1921 * 0c 12 18 24 30 48 60 6c1922 * padding 100 bytes1923 */1924 memset(&cmd, 0, sizeof(cmd));1925 cmd.hdr.size = cpu_to_le16(sizeof(cmd));1926 memcpy(cmd.ssid, params->ssid, params->ssid_len);1927 cmd.bsstype = CMD_BSS_TYPE_IBSS;1928 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);1929 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;1930 cmd.ibss.header.len = 2;1931 cmd.ibss.atimwindow = 0;1932 cmd.ds.header.id = WLAN_EID_DS_PARAMS;1933 cmd.ds.header.len = 1;1934 cmd.ds.channel = params->chandef.chan->hw_value;1935 /* Only v8 and below support setting probe delay */1936 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)1937 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);1938 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */1939 capability = WLAN_CAPABILITY_IBSS;1940 cmd.capability = cpu_to_le16(capability);1941 lbs_add_rates(cmd.rates);1942 1943 1944 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);1945 if (ret)1946 goto out;1947 1948 /*1949 * This is a sample response to CMD_802_11_AD_HOC_JOIN:1950 *1951 * response 2b 801952 * size 14 001953 * sequence xx xx1954 * result 00 001955 * reserved 001956 * bssid 02 2b 7b 0f 86 0e1957 */1958 lbs_join_post(priv, params, resp->bssid, capability);1959 1960 out:1961 return ret;1962}1963 1964 1965static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,1966 struct cfg80211_ibss_params *params)1967{1968 struct lbs_private *priv = wiphy_priv(wiphy);1969 int ret = 0;1970 struct cfg80211_bss *bss;1971 1972 if (dev == priv->mesh_dev)1973 return -EOPNOTSUPP;1974 1975 if (!params->chandef.chan) {1976 ret = -ENOTSUPP;1977 goto out;1978 }1979 1980 ret = lbs_set_channel(priv, params->chandef.chan->hw_value);1981 if (ret)1982 goto out;1983 1984 /* Search if someone is beaconing. This assumes that the1985 * bss list is populated already */1986 bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,1987 params->ssid, params->ssid_len,1988 IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);1989 1990 if (bss) {1991 ret = lbs_ibss_join_existing(priv, params, bss);1992 cfg80211_put_bss(wiphy, bss);1993 } else1994 ret = lbs_ibss_start_new(priv, params);1995 1996 1997 out:1998 return ret;1999}2000 2001 2002static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)2003{2004 struct lbs_private *priv = wiphy_priv(wiphy);2005 struct cmd_ds_802_11_ad_hoc_stop cmd;2006 int ret = 0;2007 2008 if (dev == priv->mesh_dev)2009 return -EOPNOTSUPP;2010 2011 memset(&cmd, 0, sizeof(cmd));2012 cmd.hdr.size = cpu_to_le16(sizeof(cmd));2013 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);2014 2015 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */2016 lbs_mac_event_disconnected(priv, true);2017 2018 return ret;2019}2020 2021 2022 2023static int lbs_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,2024 bool enabled, int timeout)2025{2026 struct lbs_private *priv = wiphy_priv(wiphy);2027 2028 if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {2029 if (!enabled)2030 return 0;2031 else2032 return -EINVAL;2033 }2034 /* firmware does not work well with too long latency with power saving2035 * enabled, so do not enable it if there is only polling, no2036 * interrupts (like in some sdio hosts which can only2037 * poll for sdio irqs)2038 */2039 if (priv->is_polling) {2040 if (!enabled)2041 return 0;2042 else2043 return -EINVAL;2044 }2045 if (!enabled) {2046 priv->psmode = LBS802_11POWERMODECAM;2047 if (priv->psstate != PS_STATE_FULL_POWER)2048 lbs_set_ps_mode(priv,2049 PS_MODE_ACTION_EXIT_PS,2050 true);2051 return 0;2052 }2053 if (priv->psmode != LBS802_11POWERMODECAM)2054 return 0;2055 priv->psmode = LBS802_11POWERMODEMAX_PSP;2056 if (priv->connect_status == LBS_CONNECTED)2057 lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS, true);2058 return 0;2059}2060 2061/*2062 * Initialization2063 */2064 2065static const struct cfg80211_ops lbs_cfg80211_ops = {2066 .set_monitor_channel = lbs_cfg_set_monitor_channel,2067 .libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,2068 .scan = lbs_cfg_scan,2069 .connect = lbs_cfg_connect,2070 .disconnect = lbs_cfg_disconnect,2071 .add_key = lbs_cfg_add_key,2072 .del_key = lbs_cfg_del_key,2073 .set_default_key = lbs_cfg_set_default_key,2074 .get_station = lbs_cfg_get_station,2075 .change_virtual_intf = lbs_change_intf,2076 .join_ibss = lbs_join_ibss,2077 .leave_ibss = lbs_leave_ibss,2078 .set_power_mgmt = lbs_set_power_mgmt,2079};2080 2081 2082/*2083 * At this time lbs_private *priv doesn't even exist, so we just allocate2084 * memory and don't initialize the wiphy further. This is postponed until we2085 * can talk to the firmware and happens at registration time in2086 * lbs_cfg_wiphy_register().2087 */2088struct wireless_dev *lbs_cfg_alloc(struct device *dev)2089{2090 int ret = 0;2091 struct wireless_dev *wdev;2092 2093 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);2094 if (!wdev)2095 return ERR_PTR(-ENOMEM);2096 2097 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));2098 if (!wdev->wiphy) {2099 dev_err(dev, "cannot allocate wiphy\n");2100 ret = -ENOMEM;2101 goto err_wiphy_new;2102 }2103 2104 return wdev;2105 2106 err_wiphy_new:2107 kfree(wdev);2108 return ERR_PTR(ret);2109}2110 2111 2112static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)2113{2114 struct region_code_mapping {2115 const char *cn;2116 int code;2117 };2118 2119 /* Section 5.17.2 */2120 static const struct region_code_mapping regmap[] = {2121 {"US ", 0x10}, /* US FCC */2122 {"CA ", 0x20}, /* Canada */2123 {"EU ", 0x30}, /* ETSI */2124 {"ES ", 0x31}, /* Spain */2125 {"FR ", 0x32}, /* France */2126 {"JP ", 0x40}, /* Japan */2127 };2128 size_t i;2129 2130 for (i = 0; i < ARRAY_SIZE(regmap); i++)2131 if (regmap[i].code == priv->regioncode) {2132 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);2133 break;2134 }2135}2136 2137static void lbs_reg_notifier(struct wiphy *wiphy,2138 struct regulatory_request *request)2139{2140 struct lbs_private *priv = wiphy_priv(wiphy);2141 2142 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));2143 if (lbs_iface_active(priv))2144 lbs_set_11d_domain_info(priv);2145}2146 2147/*2148 * This function get's called after lbs_setup_firmware() determined the2149 * firmware capabities. So we can setup the wiphy according to our2150 * hardware/firmware.2151 */2152int lbs_cfg_register(struct lbs_private *priv)2153{2154 struct wireless_dev *wdev = priv->wdev;2155 int ret;2156 2157 wdev->wiphy->max_scan_ssids = 1;2158 wdev->wiphy->max_scan_ie_len = 256;2159 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;2160 2161 wdev->wiphy->interface_modes =2162 BIT(NL80211_IFTYPE_STATION) |2163 BIT(NL80211_IFTYPE_ADHOC);2164 if (lbs_rtap_supported(priv))2165 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);2166 if (lbs_mesh_activated(priv))2167 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);2168 2169 wdev->wiphy->bands[NL80211_BAND_2GHZ] = &lbs_band_2ghz;2170 2171 /*2172 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have2173 * never seen a firmware without WPA2174 */2175 wdev->wiphy->cipher_suites = cipher_suites;2176 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);2177 wdev->wiphy->reg_notifier = lbs_reg_notifier;2178 2179 ret = wiphy_register(wdev->wiphy);2180 if (ret < 0)2181 pr_err("cannot register wiphy device\n");2182 2183 priv->wiphy_registered = true;2184 2185 ret = register_netdev(priv->dev);2186 if (ret)2187 pr_err("cannot register network device\n");2188 2189 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);2190 2191 lbs_cfg_set_regulatory_hint(priv);2192 2193 return ret;2194}2195 2196void lbs_scan_deinit(struct lbs_private *priv)2197{2198 cancel_delayed_work_sync(&priv->scan_work);2199}2200 2201 2202void lbs_cfg_free(struct lbs_private *priv)2203{2204 struct wireless_dev *wdev = priv->wdev;2205 2206 if (!wdev)2207 return;2208 2209 if (priv->wiphy_registered)2210 wiphy_unregister(wdev->wiphy);2211 2212 if (wdev->wiphy)2213 wiphy_free(wdev->wiphy);2214 2215 kfree(wdev);2216}2217