1 // SPDX-License-Identifier: GPL-2.0
3 * Implement cfg80211 ("iw") support.
5 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
6 * Holger Schurig <hs4233@mail.mn-solutions.de>
10 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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 <asm/unaligned.h>
26 #define CHAN2G(_channel, _freq, _flags) { \
27 .band = NL80211_BAND_2GHZ, \
28 .center_freq = (_freq), \
29 .hw_value = (_channel), \
31 .max_antenna_gain = 0, \
35 static struct ieee80211_channel lbs_2ghz_channels[] = {
52 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
54 .hw_value = (_hw_value), \
59 /* Table 6 in section 3.2.1.1 */
60 static 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),
75 static 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),
83 static const u32 cipher_suites[] = {
84 WLAN_CIPHER_SUITE_WEP40,
85 WLAN_CIPHER_SUITE_WEP104,
86 WLAN_CIPHER_SUITE_TKIP,
87 WLAN_CIPHER_SUITE_CCMP,
90 /* Time to stay on the channel */
91 #define LBS_DWELL_PASSIVE 100
92 #define LBS_DWELL_ACTIVE 40
95 /***************************************************************************
96 * Misc utility functions
98 * TLVs are Marvell specific. They are very similar to IEs, they have the
99 * same structure: type, length, data*. The only difference: for IEs, the
100 * type and length are u8, but for TLVs they're __le16.
104 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
105 * in the firmware spec
107 static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
112 case NL80211_AUTHTYPE_OPEN_SYSTEM:
113 case NL80211_AUTHTYPE_SHARED_KEY:
116 case NL80211_AUTHTYPE_AUTOMATIC:
117 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
119 case NL80211_AUTHTYPE_NETWORK_EAP:
123 /* silence compiler */
131 * Various firmware commands need the list of supported rates, but with
132 * the hight-bit set for basic rates
134 static int lbs_add_rates(u8 *rates)
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)
145 return ARRAY_SIZE(lbs_rates);
149 /***************************************************************************
150 * TLV utility functions
152 * TLVs are Marvell specific. They are very similar to IEs, they have the
153 * same structure: type, length, data*. The only difference: for IEs, the
154 * type and length are u8, but for TLVs they're __le16.
161 #define LBS_MAX_SSID_TLV_SIZE \
162 (sizeof(struct mrvl_ie_header) \
163 + IEEE80211_MAX_SSID_LEN)
165 static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
167 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
172 * ssid 4d 4e 54 45 53 54
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;
182 * Add channel list TLV (section 8.4.2)
184 * Actual channel data comes from priv->wdev->wiphy->channels.
186 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
187 (sizeof(struct mrvl_ie_header) \
188 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
190 static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
191 int last_channel, int active_scan)
193 int chanscanparamsize = sizeof(struct chanscanparamset) *
194 (last_channel - priv->scan_channel);
196 struct mrvl_ie_header *header = (void *) tlv;
199 * TLV-ID CHANLIST 01 01
201 * channel 00 01 00 00 00 64 00
205 * min scan time 00 00
206 * max scan time 64 00
207 * channel 2 00 02 00 00 00 64 00
211 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
212 header->len = cpu_to_le16(chanscanparamsize);
213 tlv += sizeof(struct mrvl_ie_header);
215 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
217 memset(tlv, 0, chanscanparamsize);
219 while (priv->scan_channel < last_channel) {
220 struct chanscanparamset *param = (void *) tlv;
222 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
224 priv->scan_req->channels[priv->scan_channel]->hw_value;
226 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
228 param->chanscanmode.passivescan = 1;
229 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
231 tlv += sizeof(struct chanscanparamset);
232 priv->scan_channel++;
234 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
241 * The rates are in lbs_bg_rates[], but for the 802.11b
242 * rates the high bit is set. We add this TLV only because
243 * there's a firmware which otherwise doesn't report all
246 #define LBS_MAX_RATES_TLV_SIZE \
247 (sizeof(struct mrvl_ie_header) \
248 + (ARRAY_SIZE(lbs_rates)))
250 /* Adds a TLV with all rates the hardware supports */
251 static int lbs_add_supported_rates_tlv(u8 *tlv)
254 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
259 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
261 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
262 tlv += sizeof(rate_tlv->header);
263 i = lbs_add_rates(tlv);
265 rate_tlv->header.len = cpu_to_le16(i);
266 return sizeof(rate_tlv->header) + i;
269 /* Add common rates from a TLV and return the new end of the TLV */
271 add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
273 int hw, ap, ap_max = ie[1];
276 if (ap_max > MAX_RATES) {
277 lbs_deb_assoc("invalid rates\n");
280 /* Advance past IE header */
283 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
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)) {
290 *nrates = *nrates + 1;
298 * Adds a TLV with all rates the hardware *and* BSS supports.
300 static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
302 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
303 const u8 *rates_eid, *ext_rates_eid;
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);
311 * 01 00 TLV_TYPE_RATES
315 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
316 tlv += sizeof(rate_tlv->header);
318 /* Add basic rates */
320 tlv = add_ie_rates(tlv, rates_eid, &n);
322 /* Add extended rates, if any */
324 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
326 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
327 /* Fallback: add basic 802.11b rates */
336 rate_tlv->header.len = cpu_to_le16(n);
337 return sizeof(rate_tlv->header) + n;
344 * This is only needed for newer firmware (V9 and up).
346 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
347 sizeof(struct mrvl_ie_auth_type)
349 static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
351 struct mrvl_ie_auth_type *auth = (void *) tlv;
354 * 1f 01 TLV_TYPE_AUTH_TYPE
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);
366 * Add channel (phy ds) TLV
368 #define LBS_MAX_CHANNEL_TLV_SIZE \
369 sizeof(struct mrvl_ie_header)
371 static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
373 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
376 * 03 00 TLV_TYPE_PHY_DS
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;
388 * Add (empty) CF param TLV of the form:
390 #define LBS_MAX_CF_PARAM_TLV_SIZE \
391 sizeof(struct mrvl_ie_header)
393 static int lbs_add_cf_param_tlv(u8 *tlv)
395 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
402 * 00 00 cfpmaxduration
403 * 00 00 cfpdurationremaining
405 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
406 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
413 #define LBS_MAX_WPA_TLV_SIZE \
414 (sizeof(struct mrvl_ie_header) \
415 + 128 /* TODO: I guessed the size */)
417 static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
422 * We need just convert an IE to an TLV. IEs use u8 for the header,
426 * but TLVs use __le16 instead:
433 tlv_len = *tlv++ = *ie++;
437 /* the TLV is two bytes larger than the IE */
445 static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
446 struct cfg80211_chan_def *chandef)
448 struct lbs_private *priv = wiphy_priv(wiphy);
451 if (cfg80211_get_chandef_type(chandef) != NL80211_CHAN_NO_HT)
454 ret = lbs_set_channel(priv, chandef->chan->hw_value);
460 static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,
461 struct net_device *netdev,
462 struct ieee80211_channel *channel)
464 struct lbs_private *priv = wiphy_priv(wiphy);
467 if (netdev != priv->mesh_dev)
470 ret = lbs_mesh_set_channel(priv, channel->hw_value);
483 * When scanning, the firmware doesn't send a nul packet with the power-safe
484 * bit to the AP. So we cannot stay away from our current channel too long,
485 * otherwise we loose data. So take a "nap" while scanning every other
488 #define LBS_SCAN_BEFORE_NAP 4
492 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
493 * which isn't really an RSSI, as it becomes larger when moving away from
494 * the AP. Anyway, we need to convert that into mBm.
496 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
497 ((-(int)rssi + 3)*100)
499 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
500 struct cmd_header *resp)
502 struct cfg80211_bss *bss;
503 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
511 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
513 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
514 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
516 if (scanresp->nr_sets == 0) {
522 * The general layout of the scan response is described in chapter
523 * 5.7.1. Basically we have a common part, then any number of BSS
524 * descriptor sections. Finally we have section with the same number
527 * cmd_ds_802_11_scan_rsp
540 * MrvlIEtypes_TsfFimestamp_t
546 pos = scanresp->bssdesc_and_tlvbuffer;
548 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
549 scanresp->bssdescriptsize);
551 tsfdesc = pos + bsssize;
552 tsfsize = 4 + 8 * scanresp->nr_sets;
553 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
555 /* Validity check: we expect a Marvell-Local TLV */
556 i = get_unaligned_le16(tsfdesc);
558 if (i != TLV_TYPE_TSFTIMESTAMP) {
559 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
564 * Validity check: the TLV holds TSF values with 8 bytes each, so
565 * the size in the TLV must match the nr_sets value
567 i = get_unaligned_le16(tsfdesc);
569 if (i / 8 != scanresp->nr_sets) {
570 lbs_deb_scan("scan response: invalid number of TSF timestamp "
571 "sets (expected %d got %d)\n", scanresp->nr_sets,
576 for (i = 0; i < scanresp->nr_sets; i++) {
585 const u8 *ssid = NULL;
588 int len = get_unaligned_le16(pos);
596 /* Packet time stamp */
598 /* Beacon interval */
599 intvl = get_unaligned_le16(pos);
602 capa = get_unaligned_le16(pos);
605 /* To find out the channel, we must parse the IEs */
608 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
609 * interval, capabilities
611 ielen = left = len - (6 + 1 + 8 + 2 + 2);
618 lbs_deb_scan("scan response: invalid IE fmt\n");
622 if (id == WLAN_EID_DS_PARAMS)
624 if (id == WLAN_EID_SSID) {
632 /* No channel, no luck */
634 struct wiphy *wiphy = priv->wdev->wiphy;
635 int freq = ieee80211_channel_to_frequency(chan_no,
637 struct ieee80211_channel *channel =
638 ieee80211_get_channel(wiphy, freq);
640 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",
641 bssid, capa, chan_no, ssid_len, ssid,
642 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
645 !(channel->flags & IEEE80211_CHAN_DISABLED)) {
646 bss = cfg80211_inform_bss(wiphy, channel,
647 CFG80211_BSS_FTYPE_UNKNOWN,
648 bssid, get_unaligned_le64(tsfdesc),
649 capa, intvl, ie, ielen,
650 LBS_SCAN_RSSI_TO_MBM(rssi),
652 cfg80211_put_bss(wiphy, bss);
655 lbs_deb_scan("scan response: missing BSS channel IE\n");
667 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
668 * TLV and a rates TLV. Determine the maximum size of them:
670 #define LBS_SCAN_MAX_CMD_SIZE \
671 (sizeof(struct cmd_ds_802_11_scan) \
672 + LBS_MAX_SSID_TLV_SIZE \
673 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
674 + LBS_MAX_RATES_TLV_SIZE)
677 * Assumes priv->scan_req is initialized and valid
678 * Assumes priv->scan_channel is initialized
680 static void lbs_scan_worker(struct work_struct *work)
682 struct lbs_private *priv =
683 container_of(work, struct lbs_private, scan_work.work);
684 struct cmd_ds_802_11_scan *scan_cmd;
685 u8 *tlv; /* pointer into our current, growing TLV storage area */
687 int running, carrier;
689 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
690 if (scan_cmd == NULL)
693 /* prepare fixed part of scan command */
694 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
696 /* stop network while we're away from our main channel */
697 running = !netif_queue_stopped(priv->dev);
698 carrier = netif_carrier_ok(priv->dev);
700 netif_stop_queue(priv->dev);
702 netif_carrier_off(priv->dev);
704 /* prepare fixed part of scan command */
705 tlv = scan_cmd->tlvbuffer;
708 if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
709 tlv += lbs_add_ssid_tlv(tlv,
710 priv->scan_req->ssids[0].ssid,
711 priv->scan_req->ssids[0].ssid_len);
713 /* add channel TLVs */
714 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
715 if (last_channel > priv->scan_req->n_channels)
716 last_channel = priv->scan_req->n_channels;
717 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
718 priv->scan_req->n_ssids);
721 tlv += lbs_add_supported_rates_tlv(tlv);
723 if (priv->scan_channel < priv->scan_req->n_channels) {
724 cancel_delayed_work(&priv->scan_work);
725 if (netif_running(priv->dev))
726 queue_delayed_work(priv->work_thread, &priv->scan_work,
727 msecs_to_jiffies(300));
730 /* This is the final data we are about to send */
731 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
732 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
734 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
735 tlv - scan_cmd->tlvbuffer);
737 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
738 le16_to_cpu(scan_cmd->hdr.size),
741 if (priv->scan_channel >= priv->scan_req->n_channels) {
743 cancel_delayed_work(&priv->scan_work);
747 /* Restart network */
749 netif_carrier_on(priv->dev);
750 if (running && !priv->tx_pending_len)
751 netif_wake_queue(priv->dev);
755 /* Wake up anything waiting on scan completion */
756 if (priv->scan_req == NULL) {
757 lbs_deb_scan("scan: waking up waiters\n");
758 wake_up_all(&priv->scan_q);
762 static void _internal_start_scan(struct lbs_private *priv, bool internal,
763 struct cfg80211_scan_request *request)
765 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
766 request->n_ssids, request->n_channels, request->ie_len);
768 priv->scan_channel = 0;
769 priv->scan_req = request;
770 priv->internal_scan = internal;
772 queue_delayed_work(priv->work_thread, &priv->scan_work,
773 msecs_to_jiffies(50));
777 * Clean up priv->scan_req. Should be used to handle the allocation details.
779 void lbs_scan_done(struct lbs_private *priv)
781 WARN_ON(!priv->scan_req);
783 if (priv->internal_scan) {
784 kfree(priv->scan_req);
786 struct cfg80211_scan_info info = {
790 cfg80211_scan_done(priv->scan_req, &info);
793 priv->scan_req = NULL;
796 static int lbs_cfg_scan(struct wiphy *wiphy,
797 struct cfg80211_scan_request *request)
799 struct lbs_private *priv = wiphy_priv(wiphy);
802 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
803 /* old scan request not yet processed */
808 _internal_start_scan(priv, false, request);
810 if (priv->surpriseremoved)
824 void lbs_send_disconnect_notification(struct lbs_private *priv,
825 bool locally_generated)
827 cfg80211_disconnected(priv->dev, 0, NULL, 0, locally_generated,
831 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
833 cfg80211_michael_mic_failure(priv->dev,
835 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
836 NL80211_KEYTYPE_GROUP :
837 NL80211_KEYTYPE_PAIRWISE,
852 * This removes all WEP keys
854 static int lbs_remove_wep_keys(struct lbs_private *priv)
856 struct cmd_ds_802_11_set_wep cmd;
859 memset(&cmd, 0, sizeof(cmd));
860 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
861 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
862 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
864 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
872 static int lbs_set_wep_keys(struct lbs_private *priv)
874 struct cmd_ds_802_11_set_wep cmd;
883 * action 02 00 ACT_ADD
885 * type for key 1 01 WEP40
889 * key 1 39 39 39 39 39 00 00 00
890 * 00 00 00 00 00 00 00 00
891 * key 2 00 00 00 00 00 00 00 00
892 * 00 00 00 00 00 00 00 00
893 * key 3 00 00 00 00 00 00 00 00
894 * 00 00 00 00 00 00 00 00
895 * key 4 00 00 00 00 00 00 00 00
897 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
898 priv->wep_key_len[2] || priv->wep_key_len[3]) {
899 /* Only set wep keys if we have at least one of them */
900 memset(&cmd, 0, sizeof(cmd));
901 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
902 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
903 cmd.action = cpu_to_le16(CMD_ACT_ADD);
905 for (i = 0; i < 4; i++) {
906 switch (priv->wep_key_len[i]) {
907 case WLAN_KEY_LEN_WEP40:
908 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
910 case WLAN_KEY_LEN_WEP104:
911 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
917 memcpy(cmd.keymaterial[i], priv->wep_key[i],
918 priv->wep_key_len[i]);
921 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
923 /* Otherwise remove all wep keys */
924 ret = lbs_remove_wep_keys(priv);
932 * Enable/Disable RSN status
934 static int lbs_enable_rsn(struct lbs_private *priv, int enable)
936 struct cmd_ds_802_11_enable_rsn cmd;
944 * action 01 00 ACT_SET
947 memset(&cmd, 0, sizeof(cmd));
948 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
949 cmd.action = cpu_to_le16(CMD_ACT_SET);
950 cmd.enable = cpu_to_le16(enable);
952 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
959 * Set WPA/WPA key material
963 * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
964 * get rid of WEXT, this should go into host.h
967 struct cmd_key_material {
968 struct cmd_header hdr;
971 struct MrvlIEtype_keyParamSet param;
974 static int lbs_set_key_material(struct lbs_private *priv,
975 int key_type, int key_info,
976 const u8 *key, u16 key_len)
978 struct cmd_key_material cmd;
982 * Example for WPA (TKIP):
989 * TLV type 00 01 key param
991 * key type 01 00 TKIP
992 * key info 06 00 UNICAST | ENABLED
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.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
1000 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
1001 cmd.param.keytypeid = cpu_to_le16(key_type);
1002 cmd.param.keyinfo = cpu_to_le16(key_info);
1003 cmd.param.keylen = cpu_to_le16(key_len);
1005 memcpy(cmd.param.key, key, key_len);
1007 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1014 * Sets the auth type (open, shared, etc) in the firmware. That
1015 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1016 * command doesn't send an authentication frame at all, it just
1017 * stores the auth_type.
1019 static int lbs_set_authtype(struct lbs_private *priv,
1020 struct cfg80211_connect_params *sme)
1022 struct cmd_ds_802_11_authenticate cmd;
1030 * BSS id 00 13 19 80 da 30
1032 * reserved 00 00 00 00 00 00 00 00 00 00
1034 memset(&cmd, 0, sizeof(cmd));
1035 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1037 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1038 /* convert auth_type */
1039 ret = lbs_auth_to_authtype(sme->auth_type);
1044 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1052 * Create association request
1054 #define LBS_ASSOC_MAX_CMD_SIZE \
1055 (sizeof(struct cmd_ds_802_11_associate) \
1056 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1057 + LBS_MAX_SSID_TLV_SIZE \
1058 + LBS_MAX_CHANNEL_TLV_SIZE \
1059 + LBS_MAX_CF_PARAM_TLV_SIZE \
1060 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1061 + LBS_MAX_WPA_TLV_SIZE)
1063 static int lbs_associate(struct lbs_private *priv,
1064 struct cfg80211_bss *bss,
1065 struct cfg80211_connect_params *sme)
1067 struct cmd_ds_802_11_associate_response *resp;
1068 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1071 size_t len, resp_ie_len;
1081 pos = &cmd->iebuf[0];
1088 * BSS id 00 13 19 80 da 30
1089 * capabilities 11 00
1090 * listen interval 0a 00
1091 * beacon interval 00 00
1093 * TLVs xx (up to 512 bytes)
1095 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1097 /* Fill in static fields */
1098 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1099 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1100 cmd->capability = cpu_to_le16(bss->capability);
1104 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1106 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1108 lbs_deb_assoc("no SSID\n");
1111 /* add DS param TLV */
1113 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1115 lbs_deb_assoc("no channel\n");
1117 /* add (empty) CF param TLV */
1118 pos += lbs_add_cf_param_tlv(pos);
1121 tmp = pos + 4; /* skip Marvell IE header */
1122 pos += lbs_add_common_rates_tlv(pos, bss);
1123 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
1125 /* add auth type TLV */
1126 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
1127 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1129 /* add WPA/WPA2 TLV */
1130 if (sme->ie && sme->ie_len)
1131 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1133 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1134 (u16)(pos - (u8 *) &cmd->iebuf);
1135 cmd->hdr.size = cpu_to_le16(len);
1137 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1138 le16_to_cpu(cmd->hdr.size));
1140 /* store for later use */
1141 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1143 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1147 /* generate connect message to cfg80211 */
1149 resp = (void *) cmd; /* recast for easier field access */
1150 status = le16_to_cpu(resp->statuscode);
1152 /* Older FW versions map the IEEE 802.11 Status Code in the association
1153 * response to the following values returned in resp->statuscode:
1155 * IEEE Status Code Marvell Status Code
1156 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1157 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1158 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1159 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1160 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1161 * others -> 0x0003 ASSOC_RESULT_REFUSED
1163 * Other response codes:
1164 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1165 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1166 * association response from the AP)
1168 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1173 lbs_deb_assoc("invalid association parameters\n");
1174 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1177 lbs_deb_assoc("timer expired while waiting for AP\n");
1178 status = WLAN_STATUS_AUTH_TIMEOUT;
1181 lbs_deb_assoc("association refused by AP\n");
1182 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1185 lbs_deb_assoc("authentication refused by AP\n");
1186 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1189 lbs_deb_assoc("association failure %d\n", status);
1190 /* v5 OLPC firmware does return the AP status code if
1191 * it's not one of the values above. Let that through.
1197 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1198 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1199 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
1201 resp_ie_len = le16_to_cpu(resp->hdr.size)
1204 cfg80211_connect_result(priv->dev,
1206 sme->ie, sme->ie_len,
1207 resp->iebuf, resp_ie_len,
1212 /* TODO: get rid of priv->connect_status */
1213 priv->connect_status = LBS_CONNECTED;
1214 netif_carrier_on(priv->dev);
1215 if (!priv->tx_pending_len)
1216 netif_tx_wake_all_queues(priv->dev);
1224 static struct cfg80211_scan_request *
1225 _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1227 struct cfg80211_scan_request *creq = NULL;
1228 int i, n_channels = ieee80211_get_num_supported_channels(wiphy);
1229 enum nl80211_band band;
1231 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1232 n_channels * sizeof(void *),
1237 /* SSIDs come after channels */
1238 creq->ssids = (void *)&creq->channels[n_channels];
1239 creq->n_channels = n_channels;
1242 /* Scan all available channels */
1244 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1247 if (!wiphy->bands[band])
1250 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1251 /* ignore disabled channels */
1252 if (wiphy->bands[band]->channels[j].flags &
1253 IEEE80211_CHAN_DISABLED)
1256 creq->channels[i] = &wiphy->bands[band]->channels[j];
1261 /* Set real number of channels specified in creq->channels[] */
1262 creq->n_channels = i;
1264 /* Scan for the SSID we're going to connect to */
1265 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1266 creq->ssids[0].ssid_len = sme->ssid_len;
1268 /* No channels found... */
1276 static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1277 struct cfg80211_connect_params *sme)
1279 struct lbs_private *priv = wiphy_priv(wiphy);
1280 struct cfg80211_bss *bss = NULL;
1282 u8 preamble = RADIO_PREAMBLE_SHORT;
1284 if (dev == priv->mesh_dev)
1288 struct cfg80211_scan_request *creq;
1291 * Scan for the requested network after waiting for existing
1294 lbs_deb_assoc("assoc: waiting for existing scans\n");
1295 wait_event_interruptible_timeout(priv->scan_q,
1296 (priv->scan_req == NULL),
1299 creq = _new_connect_scan_req(wiphy, sme);
1305 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1306 _internal_start_scan(priv, true, creq);
1308 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1309 wait_event_interruptible_timeout(priv->scan_q,
1310 (priv->scan_req == NULL),
1312 lbs_deb_assoc("assoc: scanning completed\n");
1315 /* Find the BSS we want using available scan results */
1316 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1317 sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,
1318 IEEE80211_PRIVACY_ANY);
1320 wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
1325 lbs_deb_assoc("trying %pM\n", bss->bssid);
1326 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1327 sme->crypto.cipher_group,
1328 sme->key_idx, sme->key_len);
1330 /* As this is a new connection, clear locally stored WEP keys */
1331 priv->wep_tx_key = 0;
1332 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1333 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1335 /* set/remove WEP keys */
1336 switch (sme->crypto.cipher_group) {
1337 case WLAN_CIPHER_SUITE_WEP40:
1338 case WLAN_CIPHER_SUITE_WEP104:
1339 /* Store provided WEP keys in priv-> */
1340 priv->wep_tx_key = sme->key_idx;
1341 priv->wep_key_len[sme->key_idx] = sme->key_len;
1342 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1343 /* Set WEP keys and WEP mode */
1344 lbs_set_wep_keys(priv);
1345 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1346 lbs_set_mac_control(priv);
1347 /* No RSN mode for WEP */
1348 lbs_enable_rsn(priv, 0);
1350 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1352 * If we don't have no WEP, no WPA and no WPA2,
1353 * we remove all keys like in the WPA/WPA2 setup,
1354 * we just don't set RSN.
1356 * Therefore: fall-through
1358 case WLAN_CIPHER_SUITE_TKIP:
1359 case WLAN_CIPHER_SUITE_CCMP:
1360 /* Remove WEP keys and WEP mode */
1361 lbs_remove_wep_keys(priv);
1362 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1363 lbs_set_mac_control(priv);
1365 /* clear the WPA/WPA2 keys */
1366 lbs_set_key_material(priv,
1367 KEY_TYPE_ID_WEP, /* doesn't matter */
1368 KEY_INFO_WPA_UNICAST,
1370 lbs_set_key_material(priv,
1371 KEY_TYPE_ID_WEP, /* doesn't matter */
1374 /* RSN mode for WPA/WPA2 */
1375 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1378 wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
1379 sme->crypto.cipher_group);
1384 ret = lbs_set_authtype(priv, sme);
1385 if (ret == -ENOTSUPP) {
1386 wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);
1390 lbs_set_radio(priv, preamble, 1);
1392 /* Do the actual association */
1393 ret = lbs_associate(priv, bss, sme);
1397 cfg80211_put_bss(wiphy, bss);
1401 int lbs_disconnect(struct lbs_private *priv, u16 reason)
1403 struct cmd_ds_802_11_deauthenticate cmd;
1406 memset(&cmd, 0, sizeof(cmd));
1407 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1408 /* Mildly ugly to use a locally store my own BSSID ... */
1409 memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
1410 cmd.reasoncode = cpu_to_le16(reason);
1412 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
1416 cfg80211_disconnected(priv->dev,
1420 priv->connect_status = LBS_DISCONNECTED;
1425 static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1428 struct lbs_private *priv = wiphy_priv(wiphy);
1430 if (dev == priv->mesh_dev)
1433 /* store for lbs_cfg_ret_disconnect() */
1434 priv->disassoc_reason = reason_code;
1436 return lbs_disconnect(priv, reason_code);
1439 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1440 struct net_device *netdev,
1441 u8 key_index, bool unicast,
1444 struct lbs_private *priv = wiphy_priv(wiphy);
1446 if (netdev == priv->mesh_dev)
1449 if (key_index != priv->wep_tx_key) {
1450 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1451 priv->wep_tx_key = key_index;
1452 lbs_set_wep_keys(priv);
1459 static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1460 u8 idx, bool pairwise, const u8 *mac_addr,
1461 struct key_params *params)
1463 struct lbs_private *priv = wiphy_priv(wiphy);
1468 if (netdev == priv->mesh_dev)
1471 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1472 params->cipher, mac_addr);
1473 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1474 idx, params->key_len);
1475 if (params->key_len)
1476 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1477 params->key, params->key_len);
1479 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1480 if (params->seq_len)
1481 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1482 params->seq, params->seq_len);
1484 switch (params->cipher) {
1485 case WLAN_CIPHER_SUITE_WEP40:
1486 case WLAN_CIPHER_SUITE_WEP104:
1487 /* actually compare if something has changed ... */
1488 if ((priv->wep_key_len[idx] != params->key_len) ||
1489 memcmp(priv->wep_key[idx],
1490 params->key, params->key_len) != 0) {
1491 priv->wep_key_len[idx] = params->key_len;
1492 memcpy(priv->wep_key[idx],
1493 params->key, params->key_len);
1494 lbs_set_wep_keys(priv);
1497 case WLAN_CIPHER_SUITE_TKIP:
1498 case WLAN_CIPHER_SUITE_CCMP:
1499 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1500 ? KEY_INFO_WPA_UNICAST
1501 : KEY_INFO_WPA_MCAST);
1502 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1505 lbs_set_key_material(priv,
1508 params->key, params->key_len);
1511 wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
1520 static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1521 u8 key_index, bool pairwise, const u8 *mac_addr)
1524 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1525 key_index, mac_addr);
1528 struct lbs_private *priv = wiphy_priv(wiphy);
1530 * I think can keep this a NO-OP, because:
1532 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1533 * - neither "iw" nor "wpa_supplicant" won't call this during
1534 * an ongoing connection
1535 * - TODO: but I have to check if this is still true when
1536 * I set the AP to periodic re-keying
1537 * - we've not kzallec() something when we've added a key at
1538 * lbs_cfg_connect() or lbs_cfg_add_key().
1540 * This causes lbs_cfg_del_key() only called at disconnect time,
1541 * where we'd just waste time deleting a key that is not going
1542 * to be used anyway.
1544 if (key_index < 3 && priv->wep_key_len[key_index]) {
1545 priv->wep_key_len[key_index] = 0;
1546 lbs_set_wep_keys(priv);
1558 static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1559 const u8 *mac, struct station_info *sinfo)
1561 struct lbs_private *priv = wiphy_priv(wiphy);
1566 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
1567 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) |
1568 BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
1569 BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
1570 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1571 sinfo->tx_packets = priv->dev->stats.tx_packets;
1572 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1573 sinfo->rx_packets = priv->dev->stats.rx_packets;
1575 /* Get current RSSI */
1576 ret = lbs_get_rssi(priv, &signal, &noise);
1578 sinfo->signal = signal;
1579 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
1582 /* Convert priv->cur_rate from hw_value to NL80211 value */
1583 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1584 if (priv->cur_rate == lbs_rates[i].hw_value) {
1585 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1586 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1601 static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1602 enum nl80211_iftype type,
1603 struct vif_params *params)
1605 struct lbs_private *priv = wiphy_priv(wiphy);
1608 if (dev == priv->mesh_dev)
1612 case NL80211_IFTYPE_MONITOR:
1613 case NL80211_IFTYPE_STATION:
1614 case NL80211_IFTYPE_ADHOC:
1620 if (priv->iface_running)
1621 ret = lbs_set_iface_type(priv, type);
1624 priv->wdev->iftype = type;
1636 * The firmware needs the following bits masked out of the beacon-derived
1637 * capability field when associating/joining to a BSS:
1638 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1640 #define CAPINFO_MASK (~(0xda00))
1643 static void lbs_join_post(struct lbs_private *priv,
1644 struct cfg80211_ibss_params *params,
1645 u8 *bssid, u16 capability)
1647 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1648 2 + 4 + /* basic rates */
1649 2 + 1 + /* DS parameter */
1651 2 + 8]; /* extended rates */
1653 struct cfg80211_bss *bss;
1656 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1657 * the real IE from the firmware. So we fabricate a fake IE based on
1658 * what the firmware actually sends (sniffed with wireshark).
1661 *fake++ = WLAN_EID_SSID;
1662 *fake++ = params->ssid_len;
1663 memcpy(fake, params->ssid, params->ssid_len);
1664 fake += params->ssid_len;
1665 /* Fake supported basic rates IE */
1666 *fake++ = WLAN_EID_SUPP_RATES;
1672 /* Fake DS channel IE */
1673 *fake++ = WLAN_EID_DS_PARAMS;
1675 *fake++ = params->chandef.chan->hw_value;
1676 /* Fake IBSS params IE */
1677 *fake++ = WLAN_EID_IBSS_PARAMS;
1679 *fake++ = 0; /* ATIM=0 */
1681 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1682 * but I don't know how this could be checked */
1683 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1693 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1695 bss = cfg80211_inform_bss(priv->wdev->wiphy,
1696 params->chandef.chan,
1697 CFG80211_BSS_FTYPE_UNKNOWN,
1701 params->beacon_interval,
1702 fake_ie, fake - fake_ie,
1704 cfg80211_put_bss(priv->wdev->wiphy, bss);
1706 cfg80211_ibss_joined(priv->dev, bssid, params->chandef.chan,
1709 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1710 priv->connect_status = LBS_CONNECTED;
1711 netif_carrier_on(priv->dev);
1712 if (!priv->tx_pending_len)
1713 netif_wake_queue(priv->dev);
1716 static int lbs_ibss_join_existing(struct lbs_private *priv,
1717 struct cfg80211_ibss_params *params,
1718 struct cfg80211_bss *bss)
1720 const u8 *rates_eid;
1721 struct cmd_ds_802_11_ad_hoc_join cmd;
1722 u8 preamble = RADIO_PREAMBLE_SHORT;
1728 /* TODO: set preamble based on scan result */
1729 ret = lbs_set_radio(priv, preamble, 1);
1734 * Example CMD_802_11_AD_HOC_JOIN command:
1736 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1740 * bssid 02 27 27 97 2f 96
1741 * ssid 49 42 53 53 00 00 00 00
1742 * 00 00 00 00 00 00 00 00
1743 * 00 00 00 00 00 00 00 00
1744 * 00 00 00 00 00 00 00 00
1745 * type 02 CMD_BSS_TYPE_IBSS
1746 * beacon period 64 00
1748 * timestamp 00 00 00 00 00 00 00 00
1749 * localtime 00 00 00 00 00 00 00 00
1753 * reserveed 00 00 00 00
1756 * IE IBSS atim 00 00
1757 * reserved 00 00 00 00
1759 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1760 * fail timeout ff 00
1763 memset(&cmd, 0, sizeof(cmd));
1764 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1766 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1767 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1768 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1769 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1770 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1771 cmd.bss.ds.header.len = 1;
1772 cmd.bss.ds.channel = params->chandef.chan->hw_value;
1773 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1774 cmd.bss.ibss.header.len = 2;
1775 cmd.bss.ibss.atimwindow = 0;
1776 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1778 /* set rates to the intersection of our rates and the rates in the
1781 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1783 lbs_add_rates(cmd.bss.rates);
1785 rates_max = rates_eid[1];
1786 if (rates_max > MAX_RATES) {
1787 lbs_deb_join("invalid rates");
1790 rates = cmd.bss.rates;
1791 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1792 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1793 for (i = 0; i < rates_max; i++) {
1794 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1795 u8 rate = rates_eid[i+2];
1796 if (rate == 0x02 || rate == 0x04 ||
1797 rate == 0x0b || rate == 0x16)
1806 /* Only v8 and below support setting this */
1807 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1808 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1809 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1811 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1816 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1824 lbs_join_post(priv, params, bss->bssid, bss->capability);
1832 static int lbs_ibss_start_new(struct lbs_private *priv,
1833 struct cfg80211_ibss_params *params)
1835 struct cmd_ds_802_11_ad_hoc_start cmd;
1836 struct cmd_ds_802_11_ad_hoc_result *resp =
1837 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1838 u8 preamble = RADIO_PREAMBLE_SHORT;
1842 ret = lbs_set_radio(priv, preamble, 1);
1847 * Example CMD_802_11_AD_HOC_START command:
1849 * command 2b 00 CMD_802_11_AD_HOC_START
1853 * ssid 54 45 53 54 00 00 00 00
1854 * 00 00 00 00 00 00 00 00
1855 * 00 00 00 00 00 00 00 00
1856 * 00 00 00 00 00 00 00 00
1858 * beacon period 64 00
1862 * IE IBSS atim 00 00
1863 * reserved 00 00 00 00
1867 * reserved 00 00 00 00
1870 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1871 * 0c 12 18 24 30 48 60 6c
1874 memset(&cmd, 0, sizeof(cmd));
1875 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1876 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1877 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1878 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1879 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1880 cmd.ibss.header.len = 2;
1881 cmd.ibss.atimwindow = 0;
1882 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1883 cmd.ds.header.len = 1;
1884 cmd.ds.channel = params->chandef.chan->hw_value;
1885 /* Only v8 and below support setting probe delay */
1886 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1887 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1888 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1889 capability = WLAN_CAPABILITY_IBSS;
1890 cmd.capability = cpu_to_le16(capability);
1891 lbs_add_rates(cmd.rates);
1894 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1899 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1906 * bssid 02 2b 7b 0f 86 0e
1908 lbs_join_post(priv, params, resp->bssid, capability);
1915 static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1916 struct cfg80211_ibss_params *params)
1918 struct lbs_private *priv = wiphy_priv(wiphy);
1920 struct cfg80211_bss *bss;
1922 if (dev == priv->mesh_dev)
1925 if (!params->chandef.chan) {
1930 ret = lbs_set_channel(priv, params->chandef.chan->hw_value);
1934 /* Search if someone is beaconing. This assumes that the
1935 * bss list is populated already */
1936 bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,
1937 params->ssid, params->ssid_len,
1938 IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
1941 ret = lbs_ibss_join_existing(priv, params, bss);
1942 cfg80211_put_bss(wiphy, bss);
1944 ret = lbs_ibss_start_new(priv, params);
1952 static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1954 struct lbs_private *priv = wiphy_priv(wiphy);
1955 struct cmd_ds_802_11_ad_hoc_stop cmd;
1958 if (dev == priv->mesh_dev)
1961 memset(&cmd, 0, sizeof(cmd));
1962 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1963 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
1965 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
1966 lbs_mac_event_disconnected(priv, true);
1973 static int lbs_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1974 bool enabled, int timeout)
1976 struct lbs_private *priv = wiphy_priv(wiphy);
1978 if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
1984 /* firmware does not work well with too long latency with power saving
1985 * enabled, so do not enable it if there is only polling, no
1986 * interrupts (like in some sdio hosts which can only
1987 * poll for sdio irqs)
1989 if (priv->is_polling) {
1996 priv->psmode = LBS802_11POWERMODECAM;
1997 if (priv->psstate != PS_STATE_FULL_POWER)
1998 lbs_set_ps_mode(priv,
1999 PS_MODE_ACTION_EXIT_PS,
2003 if (priv->psmode != LBS802_11POWERMODECAM)
2005 priv->psmode = LBS802_11POWERMODEMAX_PSP;
2006 if (priv->connect_status == LBS_CONNECTED)
2007 lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS, true);
2015 static const struct cfg80211_ops lbs_cfg80211_ops = {
2016 .set_monitor_channel = lbs_cfg_set_monitor_channel,
2017 .libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,
2018 .scan = lbs_cfg_scan,
2019 .connect = lbs_cfg_connect,
2020 .disconnect = lbs_cfg_disconnect,
2021 .add_key = lbs_cfg_add_key,
2022 .del_key = lbs_cfg_del_key,
2023 .set_default_key = lbs_cfg_set_default_key,
2024 .get_station = lbs_cfg_get_station,
2025 .change_virtual_intf = lbs_change_intf,
2026 .join_ibss = lbs_join_ibss,
2027 .leave_ibss = lbs_leave_ibss,
2028 .set_power_mgmt = lbs_set_power_mgmt,
2033 * At this time lbs_private *priv doesn't even exist, so we just allocate
2034 * memory and don't initialize the wiphy further. This is postponed until we
2035 * can talk to the firmware and happens at registration time in
2036 * lbs_cfg_wiphy_register().
2038 struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2041 struct wireless_dev *wdev;
2043 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2045 return ERR_PTR(-ENOMEM);
2047 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2049 dev_err(dev, "cannot allocate wiphy\n");
2058 return ERR_PTR(ret);
2062 static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2064 struct region_code_mapping {
2069 /* Section 5.17.2 */
2070 static const struct region_code_mapping regmap[] = {
2071 {"US ", 0x10}, /* US FCC */
2072 {"CA ", 0x20}, /* Canada */
2073 {"EU ", 0x30}, /* ETSI */
2074 {"ES ", 0x31}, /* Spain */
2075 {"FR ", 0x32}, /* France */
2076 {"JP ", 0x40}, /* Japan */
2080 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2081 if (regmap[i].code == priv->regioncode) {
2082 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2087 static void lbs_reg_notifier(struct wiphy *wiphy,
2088 struct regulatory_request *request)
2090 struct lbs_private *priv = wiphy_priv(wiphy);
2092 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
2093 if (lbs_iface_active(priv))
2094 lbs_set_11d_domain_info(priv);
2098 * This function get's called after lbs_setup_firmware() determined the
2099 * firmware capabities. So we can setup the wiphy according to our
2100 * hardware/firmware.
2102 int lbs_cfg_register(struct lbs_private *priv)
2104 struct wireless_dev *wdev = priv->wdev;
2107 wdev->wiphy->max_scan_ssids = 1;
2108 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2110 wdev->wiphy->interface_modes =
2111 BIT(NL80211_IFTYPE_STATION) |
2112 BIT(NL80211_IFTYPE_ADHOC);
2113 if (lbs_rtap_supported(priv))
2114 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
2115 if (lbs_mesh_activated(priv))
2116 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
2118 wdev->wiphy->bands[NL80211_BAND_2GHZ] = &lbs_band_2ghz;
2121 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2122 * never seen a firmware without WPA
2124 wdev->wiphy->cipher_suites = cipher_suites;
2125 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2126 wdev->wiphy->reg_notifier = lbs_reg_notifier;
2128 ret = wiphy_register(wdev->wiphy);
2130 pr_err("cannot register wiphy device\n");
2132 priv->wiphy_registered = true;
2134 ret = register_netdev(priv->dev);
2136 pr_err("cannot register network device\n");
2138 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2140 lbs_cfg_set_regulatory_hint(priv);
2145 void lbs_scan_deinit(struct lbs_private *priv)
2147 cancel_delayed_work_sync(&priv->scan_work);
2151 void lbs_cfg_free(struct lbs_private *priv)
2153 struct wireless_dev *wdev = priv->wdev;
2158 if (priv->wiphy_registered)
2159 wiphy_unregister(wdev->wiphy);
2162 wiphy_free(wdev->wiphy);