2 * Implement cfg80211 ("iw") support.
4 * Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
5 * Holger Schurig <hs4233@mail.mn-solutions.de>
9 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11 #include <linux/hardirq.h>
12 #include <linux/sched.h>
13 #include <linux/wait.h>
14 #include <linux/slab.h>
15 #include <linux/ieee80211.h>
16 #include <net/cfg80211.h>
17 #include <asm/unaligned.h>
25 #define CHAN2G(_channel, _freq, _flags) { \
26 .band = IEEE80211_BAND_2GHZ, \
27 .center_freq = (_freq), \
28 .hw_value = (_channel), \
30 .max_antenna_gain = 0, \
34 static struct ieee80211_channel lbs_2ghz_channels[] = {
51 #define RATETAB_ENT(_rate, _hw_value, _flags) { \
53 .hw_value = (_hw_value), \
58 /* Table 6 in section 3.2.1.1 */
59 static struct ieee80211_rate lbs_rates[] = {
60 RATETAB_ENT(10, 0, 0),
61 RATETAB_ENT(20, 1, 0),
62 RATETAB_ENT(55, 2, 0),
63 RATETAB_ENT(110, 3, 0),
64 RATETAB_ENT(60, 9, 0),
65 RATETAB_ENT(90, 6, 0),
66 RATETAB_ENT(120, 7, 0),
67 RATETAB_ENT(180, 8, 0),
68 RATETAB_ENT(240, 9, 0),
69 RATETAB_ENT(360, 10, 0),
70 RATETAB_ENT(480, 11, 0),
71 RATETAB_ENT(540, 12, 0),
74 static struct ieee80211_supported_band lbs_band_2ghz = {
75 .channels = lbs_2ghz_channels,
76 .n_channels = ARRAY_SIZE(lbs_2ghz_channels),
77 .bitrates = lbs_rates,
78 .n_bitrates = ARRAY_SIZE(lbs_rates),
82 static const u32 cipher_suites[] = {
83 WLAN_CIPHER_SUITE_WEP40,
84 WLAN_CIPHER_SUITE_WEP104,
85 WLAN_CIPHER_SUITE_TKIP,
86 WLAN_CIPHER_SUITE_CCMP,
89 /* Time to stay on the channel */
90 #define LBS_DWELL_PASSIVE 100
91 #define LBS_DWELL_ACTIVE 40
94 /***************************************************************************
95 * Misc utility functions
97 * TLVs are Marvell specific. They are very similar to IEs, they have the
98 * same structure: type, length, data*. The only difference: for IEs, the
99 * type and length are u8, but for TLVs they're __le16.
103 * Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
104 * in the firmware spec
106 static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
111 case NL80211_AUTHTYPE_OPEN_SYSTEM:
112 case NL80211_AUTHTYPE_SHARED_KEY:
115 case NL80211_AUTHTYPE_AUTOMATIC:
116 ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
118 case NL80211_AUTHTYPE_NETWORK_EAP:
122 /* silence compiler */
130 * Various firmware commands need the list of supported rates, but with
131 * the hight-bit set for basic rates
133 static int lbs_add_rates(u8 *rates)
137 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
138 u8 rate = lbs_rates[i].bitrate / 5;
139 if (rate == 0x02 || rate == 0x04 ||
140 rate == 0x0b || rate == 0x16)
144 return ARRAY_SIZE(lbs_rates);
148 /***************************************************************************
149 * TLV utility functions
151 * TLVs are Marvell specific. They are very similar to IEs, they have the
152 * same structure: type, length, data*. The only difference: for IEs, the
153 * type and length are u8, but for TLVs they're __le16.
160 #define LBS_MAX_SSID_TLV_SIZE \
161 (sizeof(struct mrvl_ie_header) \
162 + IEEE80211_MAX_SSID_LEN)
164 static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
166 struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
171 * ssid 4d 4e 54 45 53 54
173 ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
174 ssid_tlv->header.len = cpu_to_le16(ssid_len);
175 memcpy(ssid_tlv->ssid, ssid, ssid_len);
176 return sizeof(ssid_tlv->header) + ssid_len;
181 * Add channel list TLV (section 8.4.2)
183 * Actual channel data comes from priv->wdev->wiphy->channels.
185 #define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
186 (sizeof(struct mrvl_ie_header) \
187 + (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
189 static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
190 int last_channel, int active_scan)
192 int chanscanparamsize = sizeof(struct chanscanparamset) *
193 (last_channel - priv->scan_channel);
195 struct mrvl_ie_header *header = (void *) tlv;
198 * TLV-ID CHANLIST 01 01
200 * channel 00 01 00 00 00 64 00
204 * min scan time 00 00
205 * max scan time 64 00
206 * channel 2 00 02 00 00 00 64 00
210 header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
211 header->len = cpu_to_le16(chanscanparamsize);
212 tlv += sizeof(struct mrvl_ie_header);
214 /* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
216 memset(tlv, 0, chanscanparamsize);
218 while (priv->scan_channel < last_channel) {
219 struct chanscanparamset *param = (void *) tlv;
221 param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
223 priv->scan_req->channels[priv->scan_channel]->hw_value;
225 param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
227 param->chanscanmode.passivescan = 1;
228 param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
230 tlv += sizeof(struct chanscanparamset);
231 priv->scan_channel++;
233 return sizeof(struct mrvl_ie_header) + chanscanparamsize;
240 * The rates are in lbs_bg_rates[], but for the 802.11b
241 * rates the high bit is set. We add this TLV only because
242 * there's a firmware which otherwise doesn't report all
245 #define LBS_MAX_RATES_TLV_SIZE \
246 (sizeof(struct mrvl_ie_header) \
247 + (ARRAY_SIZE(lbs_rates)))
249 /* Adds a TLV with all rates the hardware supports */
250 static int lbs_add_supported_rates_tlv(u8 *tlv)
253 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
258 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
260 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
261 tlv += sizeof(rate_tlv->header);
262 i = lbs_add_rates(tlv);
264 rate_tlv->header.len = cpu_to_le16(i);
265 return sizeof(rate_tlv->header) + i;
268 /* Add common rates from a TLV and return the new end of the TLV */
270 add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
272 int hw, ap, ap_max = ie[1];
275 /* Advance past IE header */
278 lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
280 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
281 hw_rate = lbs_rates[hw].bitrate / 5;
282 for (ap = 0; ap < ap_max; ap++) {
283 if (hw_rate == (ie[ap] & 0x7f)) {
285 *nrates = *nrates + 1;
293 * Adds a TLV with all rates the hardware *and* BSS supports.
295 static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
297 struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
298 const u8 *rates_eid, *ext_rates_eid;
301 rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
302 ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
305 * 01 00 TLV_TYPE_RATES
309 rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
310 tlv += sizeof(rate_tlv->header);
312 /* Add basic rates */
314 tlv = add_ie_rates(tlv, rates_eid, &n);
316 /* Add extended rates, if any */
318 tlv = add_ie_rates(tlv, ext_rates_eid, &n);
320 lbs_deb_assoc("assoc: bss had no basic rate IE\n");
321 /* Fallback: add basic 802.11b rates */
329 rate_tlv->header.len = cpu_to_le16(n);
330 return sizeof(rate_tlv->header) + n;
337 * This is only needed for newer firmware (V9 and up).
339 #define LBS_MAX_AUTH_TYPE_TLV_SIZE \
340 sizeof(struct mrvl_ie_auth_type)
342 static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
344 struct mrvl_ie_auth_type *auth = (void *) tlv;
347 * 1f 01 TLV_TYPE_AUTH_TYPE
351 auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
352 auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
353 auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
354 return sizeof(*auth);
359 * Add channel (phy ds) TLV
361 #define LBS_MAX_CHANNEL_TLV_SIZE \
362 sizeof(struct mrvl_ie_header)
364 static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
366 struct mrvl_ie_ds_param_set *ds = (void *) tlv;
369 * 03 00 TLV_TYPE_PHY_DS
373 ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
374 ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
375 ds->channel = channel;
381 * Add (empty) CF param TLV of the form:
383 #define LBS_MAX_CF_PARAM_TLV_SIZE \
384 sizeof(struct mrvl_ie_header)
386 static int lbs_add_cf_param_tlv(u8 *tlv)
388 struct mrvl_ie_cf_param_set *cf = (void *)tlv;
395 * 00 00 cfpmaxduration
396 * 00 00 cfpdurationremaining
398 cf->header.type = cpu_to_le16(TLV_TYPE_CF);
399 cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
406 #define LBS_MAX_WPA_TLV_SIZE \
407 (sizeof(struct mrvl_ie_header) \
408 + 128 /* TODO: I guessed the size */)
410 static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
415 * We need just convert an IE to an TLV. IEs use u8 for the header,
419 * but TLVs use __le16 instead:
426 tlv_len = *tlv++ = *ie++;
430 /* the TLV is two bytes larger than the IE */
438 static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
439 struct ieee80211_channel *channel,
440 enum nl80211_channel_type channel_type)
442 struct lbs_private *priv = wiphy_priv(wiphy);
445 lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
446 channel->center_freq, channel_type);
448 if (channel_type != NL80211_CHAN_NO_HT)
451 ret = lbs_set_channel(priv, channel->hw_value);
454 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
458 static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,
459 struct net_device *netdev,
460 struct ieee80211_channel *channel)
462 struct lbs_private *priv = wiphy_priv(wiphy);
465 lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d",
466 netdev_name(netdev), channel->center_freq);
468 if (netdev != priv->mesh_dev)
471 ret = lbs_mesh_set_channel(priv, channel->hw_value);
474 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
485 * When scanning, the firmware doesn't send a nul packet with the power-safe
486 * bit to the AP. So we cannot stay away from our current channel too long,
487 * otherwise we loose data. So take a "nap" while scanning every other
490 #define LBS_SCAN_BEFORE_NAP 4
494 * When the firmware reports back a scan-result, it gives us an "u8 rssi",
495 * which isn't really an RSSI, as it becomes larger when moving away from
496 * the AP. Anyway, we need to convert that into mBm.
498 #define LBS_SCAN_RSSI_TO_MBM(rssi) \
499 ((-(int)rssi + 3)*100)
501 static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
502 struct cmd_header *resp)
504 struct cfg80211_bss *bss;
505 struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
513 lbs_deb_enter(LBS_DEB_CFG80211);
515 bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
517 lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
518 scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
520 if (scanresp->nr_sets == 0) {
526 * The general layout of the scan response is described in chapter
527 * 5.7.1. Basically we have a common part, then any number of BSS
528 * descriptor sections. Finally we have section with the same number
531 * cmd_ds_802_11_scan_rsp
544 * MrvlIEtypes_TsfFimestamp_t
550 pos = scanresp->bssdesc_and_tlvbuffer;
552 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
553 scanresp->bssdescriptsize);
555 tsfdesc = pos + bsssize;
556 tsfsize = 4 + 8 * scanresp->nr_sets;
557 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
559 /* Validity check: we expect a Marvell-Local TLV */
560 i = get_unaligned_le16(tsfdesc);
562 if (i != TLV_TYPE_TSFTIMESTAMP) {
563 lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
568 * Validity check: the TLV holds TSF values with 8 bytes each, so
569 * the size in the TLV must match the nr_sets value
571 i = get_unaligned_le16(tsfdesc);
573 if (i / 8 != scanresp->nr_sets) {
574 lbs_deb_scan("scan response: invalid number of TSF timestamp "
575 "sets (expected %d got %d)\n", scanresp->nr_sets,
580 for (i = 0; i < scanresp->nr_sets; i++) {
589 const u8 *ssid = NULL;
591 DECLARE_SSID_BUF(ssid_buf);
593 int len = get_unaligned_le16(pos);
601 /* Packet time stamp */
603 /* Beacon interval */
604 intvl = get_unaligned_le16(pos);
607 capa = get_unaligned_le16(pos);
610 /* To find out the channel, we must parse the IEs */
613 * 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
614 * interval, capabilities
616 ielen = left = len - (6 + 1 + 8 + 2 + 2);
622 if (elen > left || elen == 0) {
623 lbs_deb_scan("scan response: invalid IE fmt\n");
627 if (id == WLAN_EID_DS_PARAMS)
629 if (id == WLAN_EID_SSID) {
637 /* No channel, no luck */
639 struct wiphy *wiphy = priv->wdev->wiphy;
640 int freq = ieee80211_channel_to_frequency(chan_no,
641 IEEE80211_BAND_2GHZ);
642 struct ieee80211_channel *channel =
643 ieee80211_get_channel(wiphy, freq);
645 lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
647 bssid, capa, chan_no,
648 print_ssid(ssid_buf, ssid, ssid_len),
649 LBS_SCAN_RSSI_TO_MBM(rssi)/100);
652 !(channel->flags & IEEE80211_CHAN_DISABLED)) {
653 bss = cfg80211_inform_bss(wiphy, channel,
654 bssid, get_unaligned_le64(tsfdesc),
655 capa, intvl, ie, ielen,
656 LBS_SCAN_RSSI_TO_MBM(rssi),
658 cfg80211_put_bss(bss);
661 lbs_deb_scan("scan response: missing BSS channel IE\n");
668 lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
674 * Our scan command contains a TLV, consting of a SSID TLV, a channel list
675 * TLV and a rates TLV. Determine the maximum size of them:
677 #define LBS_SCAN_MAX_CMD_SIZE \
678 (sizeof(struct cmd_ds_802_11_scan) \
679 + LBS_MAX_SSID_TLV_SIZE \
680 + LBS_MAX_CHANNEL_LIST_TLV_SIZE \
681 + LBS_MAX_RATES_TLV_SIZE)
684 * Assumes priv->scan_req is initialized and valid
685 * Assumes priv->scan_channel is initialized
687 static void lbs_scan_worker(struct work_struct *work)
689 struct lbs_private *priv =
690 container_of(work, struct lbs_private, scan_work.work);
691 struct cmd_ds_802_11_scan *scan_cmd;
692 u8 *tlv; /* pointer into our current, growing TLV storage area */
694 int running, carrier;
696 lbs_deb_enter(LBS_DEB_SCAN);
698 scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
699 if (scan_cmd == NULL)
700 goto out_no_scan_cmd;
702 /* prepare fixed part of scan command */
703 scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
705 /* stop network while we're away from our main channel */
706 running = !netif_queue_stopped(priv->dev);
707 carrier = netif_carrier_ok(priv->dev);
709 netif_stop_queue(priv->dev);
711 netif_carrier_off(priv->dev);
713 /* prepare fixed part of scan command */
714 tlv = scan_cmd->tlvbuffer;
717 if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
718 tlv += lbs_add_ssid_tlv(tlv,
719 priv->scan_req->ssids[0].ssid,
720 priv->scan_req->ssids[0].ssid_len);
722 /* add channel TLVs */
723 last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
724 if (last_channel > priv->scan_req->n_channels)
725 last_channel = priv->scan_req->n_channels;
726 tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
727 priv->scan_req->n_ssids);
730 tlv += lbs_add_supported_rates_tlv(tlv);
732 if (priv->scan_channel < priv->scan_req->n_channels) {
733 cancel_delayed_work(&priv->scan_work);
734 if (netif_running(priv->dev))
735 queue_delayed_work(priv->work_thread, &priv->scan_work,
736 msecs_to_jiffies(300));
739 /* This is the final data we are about to send */
740 scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
741 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
743 lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
744 tlv - scan_cmd->tlvbuffer);
746 __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
747 le16_to_cpu(scan_cmd->hdr.size),
750 if (priv->scan_channel >= priv->scan_req->n_channels) {
752 cancel_delayed_work(&priv->scan_work);
756 /* Restart network */
758 netif_carrier_on(priv->dev);
759 if (running && !priv->tx_pending_len)
760 netif_wake_queue(priv->dev);
764 /* Wake up anything waiting on scan completion */
765 if (priv->scan_req == NULL) {
766 lbs_deb_scan("scan: waking up waiters\n");
767 wake_up_all(&priv->scan_q);
771 lbs_deb_leave(LBS_DEB_SCAN);
774 static void _internal_start_scan(struct lbs_private *priv, bool internal,
775 struct cfg80211_scan_request *request)
777 lbs_deb_enter(LBS_DEB_CFG80211);
779 lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
780 request->n_ssids, request->n_channels, request->ie_len);
782 priv->scan_channel = 0;
783 priv->scan_req = request;
784 priv->internal_scan = internal;
786 queue_delayed_work(priv->work_thread, &priv->scan_work,
787 msecs_to_jiffies(50));
789 lbs_deb_leave(LBS_DEB_CFG80211);
793 * Clean up priv->scan_req. Should be used to handle the allocation details.
795 void lbs_scan_done(struct lbs_private *priv)
797 WARN_ON(!priv->scan_req);
799 if (priv->internal_scan)
800 kfree(priv->scan_req);
802 cfg80211_scan_done(priv->scan_req, false);
804 priv->scan_req = NULL;
807 static int lbs_cfg_scan(struct wiphy *wiphy,
808 struct cfg80211_scan_request *request)
810 struct lbs_private *priv = wiphy_priv(wiphy);
813 lbs_deb_enter(LBS_DEB_CFG80211);
815 if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
816 /* old scan request not yet processed */
821 _internal_start_scan(priv, false, request);
823 if (priv->surpriseremoved)
827 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
838 void lbs_send_disconnect_notification(struct lbs_private *priv)
840 lbs_deb_enter(LBS_DEB_CFG80211);
842 cfg80211_disconnected(priv->dev,
847 lbs_deb_leave(LBS_DEB_CFG80211);
850 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
852 lbs_deb_enter(LBS_DEB_CFG80211);
854 cfg80211_michael_mic_failure(priv->dev,
856 event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
857 NL80211_KEYTYPE_GROUP :
858 NL80211_KEYTYPE_PAIRWISE,
863 lbs_deb_leave(LBS_DEB_CFG80211);
875 * This removes all WEP keys
877 static int lbs_remove_wep_keys(struct lbs_private *priv)
879 struct cmd_ds_802_11_set_wep cmd;
882 lbs_deb_enter(LBS_DEB_CFG80211);
884 memset(&cmd, 0, sizeof(cmd));
885 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
886 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
887 cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
889 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
891 lbs_deb_leave(LBS_DEB_CFG80211);
898 static int lbs_set_wep_keys(struct lbs_private *priv)
900 struct cmd_ds_802_11_set_wep cmd;
904 lbs_deb_enter(LBS_DEB_CFG80211);
911 * action 02 00 ACT_ADD
913 * type for key 1 01 WEP40
917 * key 1 39 39 39 39 39 00 00 00
918 * 00 00 00 00 00 00 00 00
919 * key 2 00 00 00 00 00 00 00 00
920 * 00 00 00 00 00 00 00 00
921 * key 3 00 00 00 00 00 00 00 00
922 * 00 00 00 00 00 00 00 00
923 * key 4 00 00 00 00 00 00 00 00
925 if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
926 priv->wep_key_len[2] || priv->wep_key_len[3]) {
927 /* Only set wep keys if we have at least one of them */
928 memset(&cmd, 0, sizeof(cmd));
929 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
930 cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
931 cmd.action = cpu_to_le16(CMD_ACT_ADD);
933 for (i = 0; i < 4; i++) {
934 switch (priv->wep_key_len[i]) {
935 case WLAN_KEY_LEN_WEP40:
936 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
938 case WLAN_KEY_LEN_WEP104:
939 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
945 memcpy(cmd.keymaterial[i], priv->wep_key[i],
946 priv->wep_key_len[i]);
949 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
951 /* Otherwise remove all wep keys */
952 ret = lbs_remove_wep_keys(priv);
955 lbs_deb_leave(LBS_DEB_CFG80211);
961 * Enable/Disable RSN status
963 static int lbs_enable_rsn(struct lbs_private *priv, int enable)
965 struct cmd_ds_802_11_enable_rsn cmd;
968 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
975 * action 01 00 ACT_SET
978 memset(&cmd, 0, sizeof(cmd));
979 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
980 cmd.action = cpu_to_le16(CMD_ACT_SET);
981 cmd.enable = cpu_to_le16(enable);
983 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
985 lbs_deb_leave(LBS_DEB_CFG80211);
991 * Set WPA/WPA key material
995 * like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
996 * get rid of WEXT, this should go into host.h
999 struct cmd_key_material {
1000 struct cmd_header hdr;
1003 struct MrvlIEtype_keyParamSet param;
1006 static int lbs_set_key_material(struct lbs_private *priv,
1009 u8 *key, u16 key_len)
1011 struct cmd_key_material cmd;
1014 lbs_deb_enter(LBS_DEB_CFG80211);
1017 * Example for WPA (TKIP):
1024 * TLV type 00 01 key param
1026 * key type 01 00 TKIP
1027 * key info 06 00 UNICAST | ENABLED
1031 memset(&cmd, 0, sizeof(cmd));
1032 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1033 cmd.action = cpu_to_le16(CMD_ACT_SET);
1034 cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
1035 cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
1036 cmd.param.keytypeid = cpu_to_le16(key_type);
1037 cmd.param.keyinfo = cpu_to_le16(key_info);
1038 cmd.param.keylen = cpu_to_le16(key_len);
1040 memcpy(cmd.param.key, key, key_len);
1042 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
1044 lbs_deb_leave(LBS_DEB_CFG80211);
1050 * Sets the auth type (open, shared, etc) in the firmware. That
1051 * we use CMD_802_11_AUTHENTICATE is misleading, this firmware
1052 * command doesn't send an authentication frame at all, it just
1053 * stores the auth_type.
1055 static int lbs_set_authtype(struct lbs_private *priv,
1056 struct cfg80211_connect_params *sme)
1058 struct cmd_ds_802_11_authenticate cmd;
1061 lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
1068 * BSS id 00 13 19 80 da 30
1070 * reserved 00 00 00 00 00 00 00 00 00 00
1072 memset(&cmd, 0, sizeof(cmd));
1073 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1075 memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
1076 /* convert auth_type */
1077 ret = lbs_auth_to_authtype(sme->auth_type);
1082 ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
1085 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1091 * Create association request
1093 #define LBS_ASSOC_MAX_CMD_SIZE \
1094 (sizeof(struct cmd_ds_802_11_associate) \
1095 - 512 /* cmd_ds_802_11_associate.iebuf */ \
1096 + LBS_MAX_SSID_TLV_SIZE \
1097 + LBS_MAX_CHANNEL_TLV_SIZE \
1098 + LBS_MAX_CF_PARAM_TLV_SIZE \
1099 + LBS_MAX_AUTH_TYPE_TLV_SIZE \
1100 + LBS_MAX_WPA_TLV_SIZE)
1102 static int lbs_associate(struct lbs_private *priv,
1103 struct cfg80211_bss *bss,
1104 struct cfg80211_connect_params *sme)
1106 struct cmd_ds_802_11_associate_response *resp;
1107 struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
1110 size_t len, resp_ie_len;
1113 u8 *pos = &(cmd->iebuf[0]);
1116 lbs_deb_enter(LBS_DEB_CFG80211);
1128 * BSS id 00 13 19 80 da 30
1129 * capabilities 11 00
1130 * listen interval 0a 00
1131 * beacon interval 00 00
1133 * TLVs xx (up to 512 bytes)
1135 cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
1137 /* Fill in static fields */
1138 memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
1139 cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
1140 cmd->capability = cpu_to_le16(bss->capability);
1143 ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
1145 pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
1147 lbs_deb_assoc("no SSID\n");
1149 /* add DS param TLV */
1151 pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
1153 lbs_deb_assoc("no channel\n");
1155 /* add (empty) CF param TLV */
1156 pos += lbs_add_cf_param_tlv(pos);
1159 tmp = pos + 4; /* skip Marvell IE header */
1160 pos += lbs_add_common_rates_tlv(pos, bss);
1161 lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
1163 /* add auth type TLV */
1164 if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
1165 pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
1167 /* add WPA/WPA2 TLV */
1168 if (sme->ie && sme->ie_len)
1169 pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
1171 len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
1172 (u16)(pos - (u8 *) &cmd->iebuf);
1173 cmd->hdr.size = cpu_to_le16(len);
1175 lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
1176 le16_to_cpu(cmd->hdr.size));
1178 /* store for later use */
1179 memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
1181 ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
1185 /* generate connect message to cfg80211 */
1187 resp = (void *) cmd; /* recast for easier field access */
1188 status = le16_to_cpu(resp->statuscode);
1190 /* Older FW versions map the IEEE 802.11 Status Code in the association
1191 * response to the following values returned in resp->statuscode:
1193 * IEEE Status Code Marvell Status Code
1194 * 0 -> 0x0000 ASSOC_RESULT_SUCCESS
1195 * 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1196 * 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1197 * 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1198 * 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
1199 * others -> 0x0003 ASSOC_RESULT_REFUSED
1201 * Other response codes:
1202 * 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
1203 * 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
1204 * association response from the AP)
1206 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1211 lbs_deb_assoc("invalid association parameters\n");
1212 status = WLAN_STATUS_CAPS_UNSUPPORTED;
1215 lbs_deb_assoc("timer expired while waiting for AP\n");
1216 status = WLAN_STATUS_AUTH_TIMEOUT;
1219 lbs_deb_assoc("association refused by AP\n");
1220 status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
1223 lbs_deb_assoc("authentication refused by AP\n");
1224 status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
1227 lbs_deb_assoc("association failure %d\n", status);
1228 /* v5 OLPC firmware does return the AP status code if
1229 * it's not one of the values above. Let that through.
1235 lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
1236 "aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
1237 le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
1239 resp_ie_len = le16_to_cpu(resp->hdr.size)
1242 cfg80211_connect_result(priv->dev,
1244 sme->ie, sme->ie_len,
1245 resp->iebuf, resp_ie_len,
1250 /* TODO: get rid of priv->connect_status */
1251 priv->connect_status = LBS_CONNECTED;
1252 netif_carrier_on(priv->dev);
1253 if (!priv->tx_pending_len)
1254 netif_tx_wake_all_queues(priv->dev);
1259 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1263 static struct cfg80211_scan_request *
1264 _new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
1266 struct cfg80211_scan_request *creq = NULL;
1267 int i, n_channels = 0;
1268 enum ieee80211_band band;
1270 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1271 if (wiphy->bands[band])
1272 n_channels += wiphy->bands[band]->n_channels;
1275 creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
1276 n_channels * sizeof(void *),
1281 /* SSIDs come after channels */
1282 creq->ssids = (void *)&creq->channels[n_channels];
1283 creq->n_channels = n_channels;
1286 /* Scan all available channels */
1288 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1291 if (!wiphy->bands[band])
1294 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
1295 /* ignore disabled channels */
1296 if (wiphy->bands[band]->channels[j].flags &
1297 IEEE80211_CHAN_DISABLED)
1300 creq->channels[i] = &wiphy->bands[band]->channels[j];
1305 /* Set real number of channels specified in creq->channels[] */
1306 creq->n_channels = i;
1308 /* Scan for the SSID we're going to connect to */
1309 memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
1310 creq->ssids[0].ssid_len = sme->ssid_len;
1312 /* No channels found... */
1320 static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
1321 struct cfg80211_connect_params *sme)
1323 struct lbs_private *priv = wiphy_priv(wiphy);
1324 struct cfg80211_bss *bss = NULL;
1326 u8 preamble = RADIO_PREAMBLE_SHORT;
1328 if (dev == priv->mesh_dev)
1331 lbs_deb_enter(LBS_DEB_CFG80211);
1334 struct cfg80211_scan_request *creq;
1337 * Scan for the requested network after waiting for existing
1340 lbs_deb_assoc("assoc: waiting for existing scans\n");
1341 wait_event_interruptible_timeout(priv->scan_q,
1342 (priv->scan_req == NULL),
1345 creq = _new_connect_scan_req(wiphy, sme);
1351 lbs_deb_assoc("assoc: scanning for compatible AP\n");
1352 _internal_start_scan(priv, true, creq);
1354 lbs_deb_assoc("assoc: waiting for scan to complete\n");
1355 wait_event_interruptible_timeout(priv->scan_q,
1356 (priv->scan_req == NULL),
1358 lbs_deb_assoc("assoc: scanning competed\n");
1361 /* Find the BSS we want using available scan results */
1362 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
1363 sme->ssid, sme->ssid_len,
1364 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
1366 wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
1371 lbs_deb_assoc("trying %pM\n", bss->bssid);
1372 lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
1373 sme->crypto.cipher_group,
1374 sme->key_idx, sme->key_len);
1376 /* As this is a new connection, clear locally stored WEP keys */
1377 priv->wep_tx_key = 0;
1378 memset(priv->wep_key, 0, sizeof(priv->wep_key));
1379 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1381 /* set/remove WEP keys */
1382 switch (sme->crypto.cipher_group) {
1383 case WLAN_CIPHER_SUITE_WEP40:
1384 case WLAN_CIPHER_SUITE_WEP104:
1385 /* Store provided WEP keys in priv-> */
1386 priv->wep_tx_key = sme->key_idx;
1387 priv->wep_key_len[sme->key_idx] = sme->key_len;
1388 memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
1389 /* Set WEP keys and WEP mode */
1390 lbs_set_wep_keys(priv);
1391 priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
1392 lbs_set_mac_control(priv);
1393 /* No RSN mode for WEP */
1394 lbs_enable_rsn(priv, 0);
1396 case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
1398 * If we don't have no WEP, no WPA and no WPA2,
1399 * we remove all keys like in the WPA/WPA2 setup,
1400 * we just don't set RSN.
1402 * Therefore: fall-through
1404 case WLAN_CIPHER_SUITE_TKIP:
1405 case WLAN_CIPHER_SUITE_CCMP:
1406 /* Remove WEP keys and WEP mode */
1407 lbs_remove_wep_keys(priv);
1408 priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
1409 lbs_set_mac_control(priv);
1411 /* clear the WPA/WPA2 keys */
1412 lbs_set_key_material(priv,
1413 KEY_TYPE_ID_WEP, /* doesn't matter */
1414 KEY_INFO_WPA_UNICAST,
1416 lbs_set_key_material(priv,
1417 KEY_TYPE_ID_WEP, /* doesn't matter */
1420 /* RSN mode for WPA/WPA2 */
1421 lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
1424 wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
1425 sme->crypto.cipher_group);
1430 ret = lbs_set_authtype(priv, sme);
1431 if (ret == -ENOTSUPP) {
1432 wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);
1436 lbs_set_radio(priv, preamble, 1);
1438 /* Do the actual association */
1439 ret = lbs_associate(priv, bss, sme);
1443 cfg80211_put_bss(bss);
1444 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1448 int lbs_disconnect(struct lbs_private *priv, u16 reason)
1450 struct cmd_ds_802_11_deauthenticate cmd;
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);
1459 ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
1463 cfg80211_disconnected(priv->dev,
1467 priv->connect_status = LBS_DISCONNECTED;
1472 static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
1475 struct lbs_private *priv = wiphy_priv(wiphy);
1477 if (dev == priv->mesh_dev)
1480 lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
1482 /* store for lbs_cfg_ret_disconnect() */
1483 priv->disassoc_reason = reason_code;
1485 return lbs_disconnect(priv, reason_code);
1488 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
1489 struct net_device *netdev,
1490 u8 key_index, bool unicast,
1493 struct lbs_private *priv = wiphy_priv(wiphy);
1495 if (netdev == priv->mesh_dev)
1498 lbs_deb_enter(LBS_DEB_CFG80211);
1500 if (key_index != priv->wep_tx_key) {
1501 lbs_deb_assoc("set_default_key: to %d\n", key_index);
1502 priv->wep_tx_key = key_index;
1503 lbs_set_wep_keys(priv);
1510 static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
1511 u8 idx, bool pairwise, const u8 *mac_addr,
1512 struct key_params *params)
1514 struct lbs_private *priv = wiphy_priv(wiphy);
1519 if (netdev == priv->mesh_dev)
1522 lbs_deb_enter(LBS_DEB_CFG80211);
1524 lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
1525 params->cipher, mac_addr);
1526 lbs_deb_assoc("add_key: key index %d, key len %d\n",
1527 idx, params->key_len);
1528 if (params->key_len)
1529 lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
1530 params->key, params->key_len);
1532 lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
1533 if (params->seq_len)
1534 lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
1535 params->seq, params->seq_len);
1537 switch (params->cipher) {
1538 case WLAN_CIPHER_SUITE_WEP40:
1539 case WLAN_CIPHER_SUITE_WEP104:
1540 /* actually compare if something has changed ... */
1541 if ((priv->wep_key_len[idx] != params->key_len) ||
1542 memcmp(priv->wep_key[idx],
1543 params->key, params->key_len) != 0) {
1544 priv->wep_key_len[idx] = params->key_len;
1545 memcpy(priv->wep_key[idx],
1546 params->key, params->key_len);
1547 lbs_set_wep_keys(priv);
1550 case WLAN_CIPHER_SUITE_TKIP:
1551 case WLAN_CIPHER_SUITE_CCMP:
1552 key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
1553 ? KEY_INFO_WPA_UNICAST
1554 : KEY_INFO_WPA_MCAST);
1555 key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
1558 lbs_set_key_material(priv,
1561 params->key, params->key_len);
1564 wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
1573 static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
1574 u8 key_index, bool pairwise, const u8 *mac_addr)
1577 lbs_deb_enter(LBS_DEB_CFG80211);
1579 lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
1580 key_index, mac_addr);
1583 struct lbs_private *priv = wiphy_priv(wiphy);
1585 * I think can keep this a NO-OP, because:
1587 * - we clear all keys whenever we do lbs_cfg_connect() anyway
1588 * - neither "iw" nor "wpa_supplicant" won't call this during
1589 * an ongoing connection
1590 * - TODO: but I have to check if this is still true when
1591 * I set the AP to periodic re-keying
1592 * - we've not kzallec() something when we've added a key at
1593 * lbs_cfg_connect() or lbs_cfg_add_key().
1595 * This causes lbs_cfg_del_key() only called at disconnect time,
1596 * where we'd just waste time deleting a key that is not going
1597 * to be used anyway.
1599 if (key_index < 3 && priv->wep_key_len[key_index]) {
1600 priv->wep_key_len[key_index] = 0;
1601 lbs_set_wep_keys(priv);
1613 static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
1614 u8 *mac, struct station_info *sinfo)
1616 struct lbs_private *priv = wiphy_priv(wiphy);
1621 lbs_deb_enter(LBS_DEB_CFG80211);
1623 sinfo->filled |= STATION_INFO_TX_BYTES |
1624 STATION_INFO_TX_PACKETS |
1625 STATION_INFO_RX_BYTES |
1626 STATION_INFO_RX_PACKETS;
1627 sinfo->tx_bytes = priv->dev->stats.tx_bytes;
1628 sinfo->tx_packets = priv->dev->stats.tx_packets;
1629 sinfo->rx_bytes = priv->dev->stats.rx_bytes;
1630 sinfo->rx_packets = priv->dev->stats.rx_packets;
1632 /* Get current RSSI */
1633 ret = lbs_get_rssi(priv, &signal, &noise);
1635 sinfo->signal = signal;
1636 sinfo->filled |= STATION_INFO_SIGNAL;
1639 /* Convert priv->cur_rate from hw_value to NL80211 value */
1640 for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
1641 if (priv->cur_rate == lbs_rates[i].hw_value) {
1642 sinfo->txrate.legacy = lbs_rates[i].bitrate;
1643 sinfo->filled |= STATION_INFO_TX_BITRATE;
1658 static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
1659 enum nl80211_iftype type, u32 *flags,
1660 struct vif_params *params)
1662 struct lbs_private *priv = wiphy_priv(wiphy);
1665 if (dev == priv->mesh_dev)
1669 case NL80211_IFTYPE_MONITOR:
1670 case NL80211_IFTYPE_STATION:
1671 case NL80211_IFTYPE_ADHOC:
1677 lbs_deb_enter(LBS_DEB_CFG80211);
1679 if (priv->iface_running)
1680 ret = lbs_set_iface_type(priv, type);
1683 priv->wdev->iftype = type;
1685 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1696 * The firmware needs the following bits masked out of the beacon-derived
1697 * capability field when associating/joining to a BSS:
1698 * 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
1700 #define CAPINFO_MASK (~(0xda00))
1703 static void lbs_join_post(struct lbs_private *priv,
1704 struct cfg80211_ibss_params *params,
1705 u8 *bssid, u16 capability)
1707 u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
1708 2 + 4 + /* basic rates */
1709 2 + 1 + /* DS parameter */
1711 2 + 8]; /* extended rates */
1713 struct cfg80211_bss *bss;
1715 lbs_deb_enter(LBS_DEB_CFG80211);
1718 * For cfg80211_inform_bss, we'll need a fake IE, as we can't get
1719 * the real IE from the firmware. So we fabricate a fake IE based on
1720 * what the firmware actually sends (sniffed with wireshark).
1723 *fake++ = WLAN_EID_SSID;
1724 *fake++ = params->ssid_len;
1725 memcpy(fake, params->ssid, params->ssid_len);
1726 fake += params->ssid_len;
1727 /* Fake supported basic rates IE */
1728 *fake++ = WLAN_EID_SUPP_RATES;
1734 /* Fake DS channel IE */
1735 *fake++ = WLAN_EID_DS_PARAMS;
1737 *fake++ = params->channel->hw_value;
1738 /* Fake IBSS params IE */
1739 *fake++ = WLAN_EID_IBSS_PARAMS;
1741 *fake++ = 0; /* ATIM=0 */
1743 /* Fake extended rates IE, TODO: don't add this for 802.11b only,
1744 * but I don't know how this could be checked */
1745 *fake++ = WLAN_EID_EXT_SUPP_RATES;
1755 lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
1757 bss = cfg80211_inform_bss(priv->wdev->wiphy,
1762 params->beacon_interval,
1763 fake_ie, fake - fake_ie,
1765 cfg80211_put_bss(bss);
1767 memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
1768 priv->wdev->ssid_len = params->ssid_len;
1770 cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
1772 /* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
1773 priv->connect_status = LBS_CONNECTED;
1774 netif_carrier_on(priv->dev);
1775 if (!priv->tx_pending_len)
1776 netif_wake_queue(priv->dev);
1778 lbs_deb_leave(LBS_DEB_CFG80211);
1781 static int lbs_ibss_join_existing(struct lbs_private *priv,
1782 struct cfg80211_ibss_params *params,
1783 struct cfg80211_bss *bss)
1785 const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
1786 struct cmd_ds_802_11_ad_hoc_join cmd;
1787 u8 preamble = RADIO_PREAMBLE_SHORT;
1790 lbs_deb_enter(LBS_DEB_CFG80211);
1792 /* TODO: set preamble based on scan result */
1793 ret = lbs_set_radio(priv, preamble, 1);
1798 * Example CMD_802_11_AD_HOC_JOIN command:
1800 * command 2c 00 CMD_802_11_AD_HOC_JOIN
1804 * bssid 02 27 27 97 2f 96
1805 * ssid 49 42 53 53 00 00 00 00
1806 * 00 00 00 00 00 00 00 00
1807 * 00 00 00 00 00 00 00 00
1808 * 00 00 00 00 00 00 00 00
1809 * type 02 CMD_BSS_TYPE_IBSS
1810 * beacon period 64 00
1812 * timestamp 00 00 00 00 00 00 00 00
1813 * localtime 00 00 00 00 00 00 00 00
1817 * reserveed 00 00 00 00
1820 * IE IBSS atim 00 00
1821 * reserved 00 00 00 00
1823 * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
1824 * fail timeout ff 00
1827 memset(&cmd, 0, sizeof(cmd));
1828 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1830 memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
1831 memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
1832 cmd.bss.type = CMD_BSS_TYPE_IBSS;
1833 cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
1834 cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
1835 cmd.bss.ds.header.len = 1;
1836 cmd.bss.ds.channel = params->channel->hw_value;
1837 cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1838 cmd.bss.ibss.header.len = 2;
1839 cmd.bss.ibss.atimwindow = 0;
1840 cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
1842 /* set rates to the intersection of our rates and the rates in the
1845 lbs_add_rates(cmd.bss.rates);
1848 u8 rates_max = rates_eid[1];
1849 u8 *rates = cmd.bss.rates;
1850 for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
1851 u8 hw_rate = lbs_rates[hw].bitrate / 5;
1852 for (i = 0; i < rates_max; i++) {
1853 if (hw_rate == (rates_eid[i+2] & 0x7f)) {
1854 u8 rate = rates_eid[i+2];
1855 if (rate == 0x02 || rate == 0x04 ||
1856 rate == 0x0b || rate == 0x16)
1864 /* Only v8 and below support setting this */
1865 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
1866 cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
1867 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1869 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
1874 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1882 lbs_join_post(priv, params, bss->bssid, bss->capability);
1885 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1891 static int lbs_ibss_start_new(struct lbs_private *priv,
1892 struct cfg80211_ibss_params *params)
1894 struct cmd_ds_802_11_ad_hoc_start cmd;
1895 struct cmd_ds_802_11_ad_hoc_result *resp =
1896 (struct cmd_ds_802_11_ad_hoc_result *) &cmd;
1897 u8 preamble = RADIO_PREAMBLE_SHORT;
1901 lbs_deb_enter(LBS_DEB_CFG80211);
1903 ret = lbs_set_radio(priv, preamble, 1);
1908 * Example CMD_802_11_AD_HOC_START command:
1910 * command 2b 00 CMD_802_11_AD_HOC_START
1914 * ssid 54 45 53 54 00 00 00 00
1915 * 00 00 00 00 00 00 00 00
1916 * 00 00 00 00 00 00 00 00
1917 * 00 00 00 00 00 00 00 00
1919 * beacon period 64 00
1923 * IE IBSS atim 00 00
1924 * reserved 00 00 00 00
1928 * reserved 00 00 00 00
1931 * rates 82 84 8b 96 (basic rates with have bit 7 set)
1932 * 0c 12 18 24 30 48 60 6c
1935 memset(&cmd, 0, sizeof(cmd));
1936 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1937 memcpy(cmd.ssid, params->ssid, params->ssid_len);
1938 cmd.bsstype = CMD_BSS_TYPE_IBSS;
1939 cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
1940 cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
1941 cmd.ibss.header.len = 2;
1942 cmd.ibss.atimwindow = 0;
1943 cmd.ds.header.id = WLAN_EID_DS_PARAMS;
1944 cmd.ds.header.len = 1;
1945 cmd.ds.channel = params->channel->hw_value;
1946 /* Only v8 and below support setting probe delay */
1947 if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
1948 cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
1949 /* TODO: mix in WLAN_CAPABILITY_PRIVACY */
1950 capability = WLAN_CAPABILITY_IBSS;
1951 cmd.capability = cpu_to_le16(capability);
1952 lbs_add_rates(cmd.rates);
1955 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
1960 * This is a sample response to CMD_802_11_AD_HOC_JOIN:
1967 * bssid 02 2b 7b 0f 86 0e
1969 lbs_join_post(priv, params, resp->bssid, capability);
1972 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
1977 static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1978 struct cfg80211_ibss_params *params)
1980 struct lbs_private *priv = wiphy_priv(wiphy);
1982 struct cfg80211_bss *bss;
1983 DECLARE_SSID_BUF(ssid_buf);
1985 if (dev == priv->mesh_dev)
1988 lbs_deb_enter(LBS_DEB_CFG80211);
1990 if (!params->channel) {
1995 ret = lbs_set_channel(priv, params->channel->hw_value);
1999 /* Search if someone is beaconing. This assumes that the
2000 * bss list is populated already */
2001 bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
2002 params->ssid, params->ssid_len,
2003 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
2006 ret = lbs_ibss_join_existing(priv, params, bss);
2007 cfg80211_put_bss(bss);
2009 ret = lbs_ibss_start_new(priv, params);
2013 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2018 static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2020 struct lbs_private *priv = wiphy_priv(wiphy);
2021 struct cmd_ds_802_11_ad_hoc_stop cmd;
2024 if (dev == priv->mesh_dev)
2027 lbs_deb_enter(LBS_DEB_CFG80211);
2029 memset(&cmd, 0, sizeof(cmd));
2030 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2031 ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
2033 /* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
2034 lbs_mac_event_disconnected(priv);
2036 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2047 static struct cfg80211_ops lbs_cfg80211_ops = {
2048 .set_monitor_channel = lbs_cfg_set_monitor_channel,
2049 .libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,
2050 .scan = lbs_cfg_scan,
2051 .connect = lbs_cfg_connect,
2052 .disconnect = lbs_cfg_disconnect,
2053 .add_key = lbs_cfg_add_key,
2054 .del_key = lbs_cfg_del_key,
2055 .set_default_key = lbs_cfg_set_default_key,
2056 .get_station = lbs_cfg_get_station,
2057 .change_virtual_intf = lbs_change_intf,
2058 .join_ibss = lbs_join_ibss,
2059 .leave_ibss = lbs_leave_ibss,
2064 * At this time lbs_private *priv doesn't even exist, so we just allocate
2065 * memory and don't initialize the wiphy further. This is postponed until we
2066 * can talk to the firmware and happens at registration time in
2067 * lbs_cfg_wiphy_register().
2069 struct wireless_dev *lbs_cfg_alloc(struct device *dev)
2072 struct wireless_dev *wdev;
2074 lbs_deb_enter(LBS_DEB_CFG80211);
2076 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2078 dev_err(dev, "cannot allocate wireless device\n");
2079 return ERR_PTR(-ENOMEM);
2082 wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
2084 dev_err(dev, "cannot allocate wiphy\n");
2089 lbs_deb_leave(LBS_DEB_CFG80211);
2094 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2095 return ERR_PTR(ret);
2099 static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
2101 struct region_code_mapping {
2106 /* Section 5.17.2 */
2107 static const struct region_code_mapping regmap[] = {
2108 {"US ", 0x10}, /* US FCC */
2109 {"CA ", 0x20}, /* Canada */
2110 {"EU ", 0x30}, /* ETSI */
2111 {"ES ", 0x31}, /* Spain */
2112 {"FR ", 0x32}, /* France */
2113 {"JP ", 0x40}, /* Japan */
2117 lbs_deb_enter(LBS_DEB_CFG80211);
2119 for (i = 0; i < ARRAY_SIZE(regmap); i++)
2120 if (regmap[i].code == priv->regioncode) {
2121 regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
2125 lbs_deb_leave(LBS_DEB_CFG80211);
2130 * This function get's called after lbs_setup_firmware() determined the
2131 * firmware capabities. So we can setup the wiphy according to our
2132 * hardware/firmware.
2134 int lbs_cfg_register(struct lbs_private *priv)
2136 struct wireless_dev *wdev = priv->wdev;
2139 lbs_deb_enter(LBS_DEB_CFG80211);
2141 wdev->wiphy->max_scan_ssids = 1;
2142 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2144 wdev->wiphy->interface_modes =
2145 BIT(NL80211_IFTYPE_STATION) |
2146 BIT(NL80211_IFTYPE_ADHOC);
2147 if (lbs_rtap_supported(priv))
2148 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
2149 if (lbs_mesh_activated(priv))
2150 wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
2152 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
2155 * We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
2156 * never seen a firmware without WPA
2158 wdev->wiphy->cipher_suites = cipher_suites;
2159 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2160 wdev->wiphy->reg_notifier = lbs_reg_notifier;
2162 ret = wiphy_register(wdev->wiphy);
2164 pr_err("cannot register wiphy device\n");
2166 priv->wiphy_registered = true;
2168 ret = register_netdev(priv->dev);
2170 pr_err("cannot register network device\n");
2172 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
2174 lbs_cfg_set_regulatory_hint(priv);
2176 lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
2180 int lbs_reg_notifier(struct wiphy *wiphy,
2181 struct regulatory_request *request)
2183 struct lbs_private *priv = wiphy_priv(wiphy);
2186 lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
2187 "callback for domain %c%c\n", request->alpha2[0],
2188 request->alpha2[1]);
2190 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
2191 if (lbs_iface_active(priv))
2192 ret = lbs_set_11d_domain_info(priv);
2194 lbs_deb_leave(LBS_DEB_CFG80211);
2198 void lbs_scan_deinit(struct lbs_private *priv)
2200 lbs_deb_enter(LBS_DEB_CFG80211);
2201 cancel_delayed_work_sync(&priv->scan_work);
2205 void lbs_cfg_free(struct lbs_private *priv)
2207 struct wireless_dev *wdev = priv->wdev;
2209 lbs_deb_enter(LBS_DEB_CFG80211);
2214 if (priv->wiphy_registered)
2215 wiphy_unregister(wdev->wiphy);
2218 wiphy_free(wdev->wiphy);