mirror of https://gitee.com/openkylin/linux.git
2139 lines
52 KiB
C
2139 lines
52 KiB
C
/*
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* Implement cfg80211 ("iw") support.
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*
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* Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
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* Holger Schurig <hs4233@mail.mn-solutions.de>
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*
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*/
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/slab.h>
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#include <linux/sched.h>
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#include <linux/ieee80211.h>
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#include <net/cfg80211.h>
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#include <asm/unaligned.h>
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#include "decl.h"
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#include "cfg.h"
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#include "cmd.h"
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#define CHAN2G(_channel, _freq, _flags) { \
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.band = IEEE80211_BAND_2GHZ, \
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.center_freq = (_freq), \
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.hw_value = (_channel), \
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.flags = (_flags), \
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.max_antenna_gain = 0, \
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.max_power = 30, \
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}
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static struct ieee80211_channel lbs_2ghz_channels[] = {
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CHAN2G(1, 2412, 0),
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CHAN2G(2, 2417, 0),
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CHAN2G(3, 2422, 0),
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CHAN2G(4, 2427, 0),
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CHAN2G(5, 2432, 0),
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CHAN2G(6, 2437, 0),
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CHAN2G(7, 2442, 0),
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CHAN2G(8, 2447, 0),
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CHAN2G(9, 2452, 0),
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CHAN2G(10, 2457, 0),
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CHAN2G(11, 2462, 0),
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CHAN2G(12, 2467, 0),
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CHAN2G(13, 2472, 0),
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CHAN2G(14, 2484, 0),
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};
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#define RATETAB_ENT(_rate, _hw_value, _flags) { \
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.bitrate = (_rate), \
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.hw_value = (_hw_value), \
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.flags = (_flags), \
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}
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/* Table 6 in section 3.2.1.1 */
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static struct ieee80211_rate lbs_rates[] = {
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RATETAB_ENT(10, 0, 0),
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RATETAB_ENT(20, 1, 0),
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RATETAB_ENT(55, 2, 0),
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RATETAB_ENT(110, 3, 0),
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RATETAB_ENT(60, 9, 0),
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RATETAB_ENT(90, 6, 0),
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RATETAB_ENT(120, 7, 0),
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RATETAB_ENT(180, 8, 0),
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RATETAB_ENT(240, 9, 0),
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RATETAB_ENT(360, 10, 0),
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RATETAB_ENT(480, 11, 0),
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RATETAB_ENT(540, 12, 0),
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};
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static struct ieee80211_supported_band lbs_band_2ghz = {
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.channels = lbs_2ghz_channels,
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.n_channels = ARRAY_SIZE(lbs_2ghz_channels),
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.bitrates = lbs_rates,
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.n_bitrates = ARRAY_SIZE(lbs_rates),
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};
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static const u32 cipher_suites[] = {
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WLAN_CIPHER_SUITE_WEP40,
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WLAN_CIPHER_SUITE_WEP104,
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WLAN_CIPHER_SUITE_TKIP,
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WLAN_CIPHER_SUITE_CCMP,
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};
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/* Time to stay on the channel */
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#define LBS_DWELL_PASSIVE 100
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#define LBS_DWELL_ACTIVE 40
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/***************************************************************************
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* Misc utility functions
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*
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* TLVs are Marvell specific. They are very similar to IEs, they have the
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* same structure: type, length, data*. The only difference: for IEs, the
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* type and length are u8, but for TLVs they're __le16.
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*/
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/*
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* Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
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* in the firmware spec
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*/
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static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
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{
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int ret = -ENOTSUPP;
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switch (auth_type) {
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case NL80211_AUTHTYPE_OPEN_SYSTEM:
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case NL80211_AUTHTYPE_SHARED_KEY:
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ret = auth_type;
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break;
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case NL80211_AUTHTYPE_AUTOMATIC:
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ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
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break;
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case NL80211_AUTHTYPE_NETWORK_EAP:
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ret = 0x80;
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break;
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default:
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/* silence compiler */
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break;
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}
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return ret;
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}
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/* Various firmware commands need the list of supported rates, but with
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the hight-bit set for basic rates */
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static int lbs_add_rates(u8 *rates)
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{
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size_t i;
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for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
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u8 rate = lbs_rates[i].bitrate / 5;
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if (rate == 0x02 || rate == 0x04 ||
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rate == 0x0b || rate == 0x16)
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rate |= 0x80;
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rates[i] = rate;
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}
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return ARRAY_SIZE(lbs_rates);
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}
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/***************************************************************************
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* TLV utility functions
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*
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* TLVs are Marvell specific. They are very similar to IEs, they have the
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* same structure: type, length, data*. The only difference: for IEs, the
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* type and length are u8, but for TLVs they're __le16.
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*/
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/*
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* Add ssid TLV
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*/
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#define LBS_MAX_SSID_TLV_SIZE \
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(sizeof(struct mrvl_ie_header) \
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+ IEEE80211_MAX_SSID_LEN)
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static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
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{
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struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
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/*
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* TLV-ID SSID 00 00
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* length 06 00
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* ssid 4d 4e 54 45 53 54
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*/
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ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
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ssid_tlv->header.len = cpu_to_le16(ssid_len);
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memcpy(ssid_tlv->ssid, ssid, ssid_len);
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return sizeof(ssid_tlv->header) + ssid_len;
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}
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/*
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* Add channel list TLV (section 8.4.2)
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*
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* Actual channel data comes from priv->wdev->wiphy->channels.
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*/
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#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
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(sizeof(struct mrvl_ie_header) \
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+ (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
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static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
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int last_channel, int active_scan)
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{
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int chanscanparamsize = sizeof(struct chanscanparamset) *
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(last_channel - priv->scan_channel);
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struct mrvl_ie_header *header = (void *) tlv;
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/*
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* TLV-ID CHANLIST 01 01
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* length 0e 00
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* channel 00 01 00 00 00 64 00
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* radio type 00
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* channel 01
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* scan type 00
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* min scan time 00 00
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* max scan time 64 00
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* channel 2 00 02 00 00 00 64 00
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*
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*/
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header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
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header->len = cpu_to_le16(chanscanparamsize);
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tlv += sizeof(struct mrvl_ie_header);
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/* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
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last_channel); */
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memset(tlv, 0, chanscanparamsize);
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while (priv->scan_channel < last_channel) {
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struct chanscanparamset *param = (void *) tlv;
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param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
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param->channumber =
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priv->scan_req->channels[priv->scan_channel]->hw_value;
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if (active_scan) {
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param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
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} else {
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param->chanscanmode.passivescan = 1;
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param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
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}
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tlv += sizeof(struct chanscanparamset);
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priv->scan_channel++;
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}
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return sizeof(struct mrvl_ie_header) + chanscanparamsize;
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}
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/*
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* Add rates TLV
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*
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* The rates are in lbs_bg_rates[], but for the 802.11b
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* rates the high bit is set. We add this TLV only because
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* there's a firmware which otherwise doesn't report all
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* APs in range.
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*/
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#define LBS_MAX_RATES_TLV_SIZE \
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(sizeof(struct mrvl_ie_header) \
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+ (ARRAY_SIZE(lbs_rates)))
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/* Adds a TLV with all rates the hardware supports */
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static int lbs_add_supported_rates_tlv(u8 *tlv)
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{
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size_t i;
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struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
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/*
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* TLV-ID RATES 01 00
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* length 0e 00
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* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
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*/
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rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
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tlv += sizeof(rate_tlv->header);
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i = lbs_add_rates(tlv);
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tlv += i;
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rate_tlv->header.len = cpu_to_le16(i);
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return sizeof(rate_tlv->header) + i;
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}
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/* Add common rates from a TLV and return the new end of the TLV */
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static u8 *
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add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
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{
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int hw, ap, ap_max = ie[1];
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u8 hw_rate;
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/* Advance past IE header */
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ie += 2;
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lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
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for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
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hw_rate = lbs_rates[hw].bitrate / 5;
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for (ap = 0; ap < ap_max; ap++) {
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if (hw_rate == (ie[ap] & 0x7f)) {
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*tlv++ = ie[ap];
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*nrates = *nrates + 1;
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}
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}
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}
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return tlv;
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}
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/*
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* Adds a TLV with all rates the hardware *and* BSS supports.
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*/
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static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
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{
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struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
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const u8 *rates_eid, *ext_rates_eid;
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int n = 0;
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rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
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ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
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/*
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* 01 00 TLV_TYPE_RATES
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* 04 00 len
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* 82 84 8b 96 rates
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*/
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rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
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tlv += sizeof(rate_tlv->header);
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/* Add basic rates */
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if (rates_eid) {
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tlv = add_ie_rates(tlv, rates_eid, &n);
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/* Add extended rates, if any */
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if (ext_rates_eid)
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tlv = add_ie_rates(tlv, ext_rates_eid, &n);
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} else {
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lbs_deb_assoc("assoc: bss had no basic rate IE\n");
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/* Fallback: add basic 802.11b rates */
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*tlv++ = 0x82;
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*tlv++ = 0x84;
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*tlv++ = 0x8b;
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*tlv++ = 0x96;
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n = 4;
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}
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rate_tlv->header.len = cpu_to_le16(n);
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return sizeof(rate_tlv->header) + n;
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}
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/*
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* Add auth type TLV.
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*
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* This is only needed for newer firmware (V9 and up).
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*/
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#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
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sizeof(struct mrvl_ie_auth_type)
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static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
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{
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struct mrvl_ie_auth_type *auth = (void *) tlv;
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/*
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* 1f 01 TLV_TYPE_AUTH_TYPE
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* 01 00 len
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* 01 auth type
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*/
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auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
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auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
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auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
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return sizeof(*auth);
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}
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/*
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* Add channel (phy ds) TLV
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*/
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#define LBS_MAX_CHANNEL_TLV_SIZE \
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sizeof(struct mrvl_ie_header)
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static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
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{
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struct mrvl_ie_ds_param_set *ds = (void *) tlv;
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/*
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* 03 00 TLV_TYPE_PHY_DS
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* 01 00 len
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* 06 channel
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*/
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ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
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ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
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ds->channel = channel;
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return sizeof(*ds);
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}
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/*
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* Add (empty) CF param TLV of the form:
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*/
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#define LBS_MAX_CF_PARAM_TLV_SIZE \
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sizeof(struct mrvl_ie_header)
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static int lbs_add_cf_param_tlv(u8 *tlv)
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{
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struct mrvl_ie_cf_param_set *cf = (void *)tlv;
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/*
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* 04 00 TLV_TYPE_CF
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* 06 00 len
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* 00 cfpcnt
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* 00 cfpperiod
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* 00 00 cfpmaxduration
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* 00 00 cfpdurationremaining
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*/
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cf->header.type = cpu_to_le16(TLV_TYPE_CF);
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cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
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return sizeof(*cf);
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}
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/*
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* Add WPA TLV
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*/
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#define LBS_MAX_WPA_TLV_SIZE \
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(sizeof(struct mrvl_ie_header) \
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+ 128 /* TODO: I guessed the size */)
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static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
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{
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size_t tlv_len;
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/*
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* We need just convert an IE to an TLV. IEs use u8 for the header,
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* u8 type
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* u8 len
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* u8[] data
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* but TLVs use __le16 instead:
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* __le16 type
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* __le16 len
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* u8[] data
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*/
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*tlv++ = *ie++;
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*tlv++ = 0;
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tlv_len = *tlv++ = *ie++;
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*tlv++ = 0;
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while (tlv_len--)
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*tlv++ = *ie++;
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/* the TLV is two bytes larger than the IE */
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return ie_len + 2;
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}
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|
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/***************************************************************************
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* Set Channel
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*/
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static int lbs_cfg_set_channel(struct wiphy *wiphy,
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struct net_device *netdev,
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struct ieee80211_channel *channel,
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enum nl80211_channel_type channel_type)
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{
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struct lbs_private *priv = wiphy_priv(wiphy);
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int ret = -ENOTSUPP;
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lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
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channel->center_freq, channel_type);
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if (channel_type != NL80211_CHAN_NO_HT)
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goto out;
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ret = lbs_set_channel(priv, channel->hw_value);
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out:
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lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
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return ret;
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}
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|
|
|
|
|
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/***************************************************************************
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* Scanning
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*/
|
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|
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/*
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* When scanning, the firmware doesn't send a nul packet with the power-safe
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* bit to the AP. So we cannot stay away from our current channel too long,
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* otherwise we loose data. So take a "nap" while scanning every other
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* while.
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*/
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#define LBS_SCAN_BEFORE_NAP 4
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|
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/*
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* When the firmware reports back a scan-result, it gives us an "u8 rssi",
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* which isn't really an RSSI, as it becomes larger when moving away from
|
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* the AP. Anyway, we need to convert that into mBm.
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*/
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#define LBS_SCAN_RSSI_TO_MBM(rssi) \
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((-(int)rssi + 3)*100)
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|
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static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
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struct cmd_header *resp)
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{
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struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
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int bsssize;
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const u8 *pos;
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u16 nr_sets;
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const u8 *tsfdesc;
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int tsfsize;
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int i;
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int ret = -EILSEQ;
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|
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lbs_deb_enter(LBS_DEB_CFG80211);
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|
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bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
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nr_sets = le16_to_cpu(scanresp->nr_sets);
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|
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lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
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nr_sets, bsssize, le16_to_cpu(resp->size));
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|
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if (nr_sets == 0) {
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ret = 0;
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goto done;
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}
|
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|
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/*
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|
* The general layout of the scan response is described in chapter
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* 5.7.1. Basically we have a common part, then any number of BSS
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* descriptor sections. Finally we have section with the same number
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* of TSFs.
|
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*
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* cmd_ds_802_11_scan_rsp
|
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* cmd_header
|
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* pos_size
|
|
* nr_sets
|
|
* bssdesc 1
|
|
* bssid
|
|
* rssi
|
|
* timestamp
|
|
* intvl
|
|
* capa
|
|
* IEs
|
|
* bssdesc 2
|
|
* bssdesc n
|
|
* MrvlIEtypes_TsfFimestamp_t
|
|
* TSF for BSS 1
|
|
* TSF for BSS 2
|
|
* TSF for BSS n
|
|
*/
|
|
|
|
pos = scanresp->bssdesc_and_tlvbuffer;
|
|
|
|
tsfdesc = pos + bsssize;
|
|
tsfsize = 4 + 8 * scanresp->nr_sets;
|
|
|
|
/* Validity check: we expect a Marvell-Local TLV */
|
|
i = get_unaligned_le16(tsfdesc);
|
|
tsfdesc += 2;
|
|
if (i != TLV_TYPE_TSFTIMESTAMP)
|
|
goto done;
|
|
/* Validity check: the TLV holds TSF values with 8 bytes each, so
|
|
* the size in the TLV must match the nr_sets value */
|
|
i = get_unaligned_le16(tsfdesc);
|
|
tsfdesc += 2;
|
|
if (i / 8 != scanresp->nr_sets)
|
|
goto done;
|
|
|
|
for (i = 0; i < scanresp->nr_sets; i++) {
|
|
const u8 *bssid;
|
|
const u8 *ie;
|
|
int left;
|
|
int ielen;
|
|
int rssi;
|
|
u16 intvl;
|
|
u16 capa;
|
|
int chan_no = -1;
|
|
const u8 *ssid = NULL;
|
|
u8 ssid_len = 0;
|
|
DECLARE_SSID_BUF(ssid_buf);
|
|
|
|
int len = get_unaligned_le16(pos);
|
|
pos += 2;
|
|
|
|
/* BSSID */
|
|
bssid = pos;
|
|
pos += ETH_ALEN;
|
|
/* RSSI */
|
|
rssi = *pos++;
|
|
/* Packet time stamp */
|
|
pos += 8;
|
|
/* Beacon interval */
|
|
intvl = get_unaligned_le16(pos);
|
|
pos += 2;
|
|
/* Capabilities */
|
|
capa = get_unaligned_le16(pos);
|
|
pos += 2;
|
|
|
|
/* To find out the channel, we must parse the IEs */
|
|
ie = pos;
|
|
/* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
|
|
interval, capabilities */
|
|
ielen = left = len - (6 + 1 + 8 + 2 + 2);
|
|
while (left >= 2) {
|
|
u8 id, elen;
|
|
id = *pos++;
|
|
elen = *pos++;
|
|
left -= 2;
|
|
if (elen > left || elen == 0)
|
|
goto done;
|
|
if (id == WLAN_EID_DS_PARAMS)
|
|
chan_no = *pos;
|
|
if (id == WLAN_EID_SSID) {
|
|
ssid = pos;
|
|
ssid_len = elen;
|
|
}
|
|
left -= elen;
|
|
pos += elen;
|
|
}
|
|
|
|
/* No channel, no luck */
|
|
if (chan_no != -1) {
|
|
struct wiphy *wiphy = priv->wdev->wiphy;
|
|
int freq = ieee80211_channel_to_frequency(chan_no);
|
|
struct ieee80211_channel *channel =
|
|
ieee80211_get_channel(wiphy, freq);
|
|
|
|
lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
|
|
"%d dBm\n",
|
|
bssid, capa, chan_no,
|
|
print_ssid(ssid_buf, ssid, ssid_len),
|
|
LBS_SCAN_RSSI_TO_MBM(rssi)/100);
|
|
|
|
if (channel ||
|
|
!(channel->flags & IEEE80211_CHAN_DISABLED))
|
|
cfg80211_inform_bss(wiphy, channel,
|
|
bssid, le64_to_cpu(*(__le64 *)tsfdesc),
|
|
capa, intvl, ie, ielen,
|
|
LBS_SCAN_RSSI_TO_MBM(rssi),
|
|
GFP_KERNEL);
|
|
}
|
|
tsfdesc += 8;
|
|
}
|
|
ret = 0;
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Our scan command contains a TLV, consting of a SSID TLV, a channel list
|
|
* TLV and a rates TLV. Determine the maximum size of them:
|
|
*/
|
|
#define LBS_SCAN_MAX_CMD_SIZE \
|
|
(sizeof(struct cmd_ds_802_11_scan) \
|
|
+ LBS_MAX_SSID_TLV_SIZE \
|
|
+ LBS_MAX_CHANNEL_LIST_TLV_SIZE \
|
|
+ LBS_MAX_RATES_TLV_SIZE)
|
|
|
|
/*
|
|
* Assumes priv->scan_req is initialized and valid
|
|
* Assumes priv->scan_channel is initialized
|
|
*/
|
|
static void lbs_scan_worker(struct work_struct *work)
|
|
{
|
|
struct lbs_private *priv =
|
|
container_of(work, struct lbs_private, scan_work.work);
|
|
struct cmd_ds_802_11_scan *scan_cmd;
|
|
u8 *tlv; /* pointer into our current, growing TLV storage area */
|
|
int last_channel;
|
|
int running, carrier;
|
|
|
|
lbs_deb_enter(LBS_DEB_SCAN);
|
|
|
|
scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
|
|
if (scan_cmd == NULL)
|
|
goto out_no_scan_cmd;
|
|
|
|
/* prepare fixed part of scan command */
|
|
scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
|
|
|
|
/* stop network while we're away from our main channel */
|
|
running = !netif_queue_stopped(priv->dev);
|
|
carrier = netif_carrier_ok(priv->dev);
|
|
if (running)
|
|
netif_stop_queue(priv->dev);
|
|
if (carrier)
|
|
netif_carrier_off(priv->dev);
|
|
|
|
/* prepare fixed part of scan command */
|
|
tlv = scan_cmd->tlvbuffer;
|
|
|
|
/* add SSID TLV */
|
|
if (priv->scan_req->n_ssids)
|
|
tlv += lbs_add_ssid_tlv(tlv,
|
|
priv->scan_req->ssids[0].ssid,
|
|
priv->scan_req->ssids[0].ssid_len);
|
|
|
|
/* add channel TLVs */
|
|
last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
|
|
if (last_channel > priv->scan_req->n_channels)
|
|
last_channel = priv->scan_req->n_channels;
|
|
tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
|
|
priv->scan_req->n_ssids);
|
|
|
|
/* add rates TLV */
|
|
tlv += lbs_add_supported_rates_tlv(tlv);
|
|
|
|
if (priv->scan_channel < priv->scan_req->n_channels) {
|
|
cancel_delayed_work(&priv->scan_work);
|
|
queue_delayed_work(priv->work_thread, &priv->scan_work,
|
|
msecs_to_jiffies(300));
|
|
}
|
|
|
|
/* This is the final data we are about to send */
|
|
scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
|
|
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
|
|
sizeof(*scan_cmd));
|
|
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
|
|
tlv - scan_cmd->tlvbuffer);
|
|
|
|
__lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
|
|
le16_to_cpu(scan_cmd->hdr.size),
|
|
lbs_ret_scan, 0);
|
|
|
|
if (priv->scan_channel >= priv->scan_req->n_channels) {
|
|
/* Mark scan done */
|
|
if (priv->internal_scan)
|
|
kfree(priv->scan_req);
|
|
else
|
|
cfg80211_scan_done(priv->scan_req, false);
|
|
|
|
priv->scan_req = NULL;
|
|
priv->last_scan = jiffies;
|
|
}
|
|
|
|
/* Restart network */
|
|
if (carrier)
|
|
netif_carrier_on(priv->dev);
|
|
if (running && !priv->tx_pending_len)
|
|
netif_wake_queue(priv->dev);
|
|
|
|
kfree(scan_cmd);
|
|
|
|
/* Wake up anything waiting on scan completion */
|
|
if (priv->scan_req == NULL) {
|
|
lbs_deb_scan("scan: waking up waiters\n");
|
|
wake_up_all(&priv->scan_q);
|
|
}
|
|
|
|
out_no_scan_cmd:
|
|
lbs_deb_leave(LBS_DEB_SCAN);
|
|
}
|
|
|
|
static void _internal_start_scan(struct lbs_private *priv, bool internal,
|
|
struct cfg80211_scan_request *request)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
|
|
request->n_ssids, request->n_channels, request->ie_len);
|
|
|
|
priv->scan_channel = 0;
|
|
queue_delayed_work(priv->work_thread, &priv->scan_work,
|
|
msecs_to_jiffies(50));
|
|
|
|
priv->scan_req = request;
|
|
priv->internal_scan = internal;
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
}
|
|
|
|
static int lbs_cfg_scan(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
struct cfg80211_scan_request *request)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
|
|
/* old scan request not yet processed */
|
|
ret = -EAGAIN;
|
|
goto out;
|
|
}
|
|
|
|
_internal_start_scan(priv, false, request);
|
|
|
|
if (priv->surpriseremoved)
|
|
ret = -EIO;
|
|
|
|
out:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* Events
|
|
*/
|
|
|
|
void lbs_send_disconnect_notification(struct lbs_private *priv)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
cfg80211_disconnected(priv->dev,
|
|
0,
|
|
NULL, 0,
|
|
GFP_KERNEL);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
}
|
|
|
|
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
cfg80211_michael_mic_failure(priv->dev,
|
|
priv->assoc_bss,
|
|
event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
|
|
NL80211_KEYTYPE_GROUP :
|
|
NL80211_KEYTYPE_PAIRWISE,
|
|
-1,
|
|
NULL,
|
|
GFP_KERNEL);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
}
|
|
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* Connect/disconnect
|
|
*/
|
|
|
|
|
|
/*
|
|
* This removes all WEP keys
|
|
*/
|
|
static int lbs_remove_wep_keys(struct lbs_private *priv)
|
|
{
|
|
struct cmd_ds_802_11_set_wep cmd;
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
|
|
cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Set WEP keys
|
|
*/
|
|
static int lbs_set_wep_keys(struct lbs_private *priv)
|
|
{
|
|
struct cmd_ds_802_11_set_wep cmd;
|
|
int i;
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
/*
|
|
* command 13 00
|
|
* size 50 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* action 02 00 ACT_ADD
|
|
* transmit key 00 00
|
|
* type for key 1 01 WEP40
|
|
* type for key 2 00
|
|
* type for key 3 00
|
|
* type for key 4 00
|
|
* key 1 39 39 39 39 39 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* key 2 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* key 3 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* key 4 00 00 00 00 00 00 00 00
|
|
*/
|
|
if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
|
|
priv->wep_key_len[2] || priv->wep_key_len[3]) {
|
|
/* Only set wep keys if we have at least one of them */
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
|
|
cmd.action = cpu_to_le16(CMD_ACT_ADD);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
switch (priv->wep_key_len[i]) {
|
|
case WLAN_KEY_LEN_WEP40:
|
|
cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
|
|
break;
|
|
case WLAN_KEY_LEN_WEP104:
|
|
cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
|
|
break;
|
|
default:
|
|
cmd.keytype[i] = 0;
|
|
break;
|
|
}
|
|
memcpy(cmd.keymaterial[i], priv->wep_key[i],
|
|
priv->wep_key_len[i]);
|
|
}
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
|
|
} else {
|
|
/* Otherwise remove all wep keys */
|
|
ret = lbs_remove_wep_keys(priv);
|
|
}
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Enable/Disable RSN status
|
|
*/
|
|
static int lbs_enable_rsn(struct lbs_private *priv, int enable)
|
|
{
|
|
struct cmd_ds_802_11_enable_rsn cmd;
|
|
int ret;
|
|
|
|
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
|
|
|
|
/*
|
|
* cmd 2f 00
|
|
* size 0c 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* action 01 00 ACT_SET
|
|
* enable 01 00
|
|
*/
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
cmd.action = cpu_to_le16(CMD_ACT_SET);
|
|
cmd.enable = cpu_to_le16(enable);
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Set WPA/WPA key material
|
|
*/
|
|
|
|
/* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
|
|
* get rid of WEXT, this should go into host.h */
|
|
|
|
struct cmd_key_material {
|
|
struct cmd_header hdr;
|
|
|
|
__le16 action;
|
|
struct MrvlIEtype_keyParamSet param;
|
|
} __packed;
|
|
|
|
static int lbs_set_key_material(struct lbs_private *priv,
|
|
int key_type,
|
|
int key_info,
|
|
u8 *key, u16 key_len)
|
|
{
|
|
struct cmd_key_material cmd;
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
/*
|
|
* Example for WPA (TKIP):
|
|
*
|
|
* cmd 5e 00
|
|
* size 34 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* action 01 00
|
|
* TLV type 00 01 key param
|
|
* length 00 26
|
|
* key type 01 00 TKIP
|
|
* key info 06 00 UNICAST | ENABLED
|
|
* key len 20 00
|
|
* key 32 bytes
|
|
*/
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
cmd.action = cpu_to_le16(CMD_ACT_SET);
|
|
cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
|
|
cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
|
|
cmd.param.keytypeid = cpu_to_le16(key_type);
|
|
cmd.param.keyinfo = cpu_to_le16(key_info);
|
|
cmd.param.keylen = cpu_to_le16(key_len);
|
|
if (key && key_len)
|
|
memcpy(cmd.param.key, key, key_len);
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Sets the auth type (open, shared, etc) in the firmware. That
|
|
* we use CMD_802_11_AUTHENTICATE is misleading, this firmware
|
|
* command doesn't send an authentication frame at all, it just
|
|
* stores the auth_type.
|
|
*/
|
|
static int lbs_set_authtype(struct lbs_private *priv,
|
|
struct cfg80211_connect_params *sme)
|
|
{
|
|
struct cmd_ds_802_11_authenticate cmd;
|
|
int ret;
|
|
|
|
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
|
|
|
|
/*
|
|
* cmd 11 00
|
|
* size 19 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* BSS id 00 13 19 80 da 30
|
|
* auth type 00
|
|
* reserved 00 00 00 00 00 00 00 00 00 00
|
|
*/
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
if (sme->bssid)
|
|
memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
|
|
/* convert auth_type */
|
|
ret = lbs_auth_to_authtype(sme->auth_type);
|
|
if (ret < 0)
|
|
goto done;
|
|
|
|
cmd.authtype = ret;
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Create association request
|
|
*/
|
|
#define LBS_ASSOC_MAX_CMD_SIZE \
|
|
(sizeof(struct cmd_ds_802_11_associate) \
|
|
- 512 /* cmd_ds_802_11_associate.iebuf */ \
|
|
+ LBS_MAX_SSID_TLV_SIZE \
|
|
+ LBS_MAX_CHANNEL_TLV_SIZE \
|
|
+ LBS_MAX_CF_PARAM_TLV_SIZE \
|
|
+ LBS_MAX_AUTH_TYPE_TLV_SIZE \
|
|
+ LBS_MAX_WPA_TLV_SIZE)
|
|
|
|
static int lbs_associate(struct lbs_private *priv,
|
|
struct cfg80211_bss *bss,
|
|
struct cfg80211_connect_params *sme)
|
|
{
|
|
struct cmd_ds_802_11_associate_response *resp;
|
|
struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
|
|
GFP_KERNEL);
|
|
const u8 *ssid_eid;
|
|
size_t len, resp_ie_len;
|
|
int status;
|
|
int ret;
|
|
u8 *pos = &(cmd->iebuf[0]);
|
|
u8 *tmp;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (!cmd) {
|
|
ret = -ENOMEM;
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* cmd 50 00
|
|
* length 34 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* BSS id 00 13 19 80 da 30
|
|
* capabilities 11 00
|
|
* listen interval 0a 00
|
|
* beacon interval 00 00
|
|
* DTIM period 00
|
|
* TLVs xx (up to 512 bytes)
|
|
*/
|
|
cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
|
|
|
|
/* Fill in static fields */
|
|
memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
|
|
cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
|
|
cmd->capability = cpu_to_le16(bss->capability);
|
|
|
|
/* add SSID TLV */
|
|
ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
|
|
if (ssid_eid)
|
|
pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
|
|
else
|
|
lbs_deb_assoc("no SSID\n");
|
|
|
|
/* add DS param TLV */
|
|
if (bss->channel)
|
|
pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
|
|
else
|
|
lbs_deb_assoc("no channel\n");
|
|
|
|
/* add (empty) CF param TLV */
|
|
pos += lbs_add_cf_param_tlv(pos);
|
|
|
|
/* add rates TLV */
|
|
tmp = pos + 4; /* skip Marvell IE header */
|
|
pos += lbs_add_common_rates_tlv(pos, bss);
|
|
lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
|
|
|
|
/* add auth type TLV */
|
|
if (priv->fwrelease >= 0x09000000)
|
|
pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
|
|
|
|
/* add WPA/WPA2 TLV */
|
|
if (sme->ie && sme->ie_len)
|
|
pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
|
|
|
|
len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
|
|
(u16)(pos - (u8 *) &cmd->iebuf);
|
|
cmd->hdr.size = cpu_to_le16(len);
|
|
|
|
/* store for later use */
|
|
memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
|
|
if (ret)
|
|
goto done;
|
|
|
|
|
|
/* generate connect message to cfg80211 */
|
|
|
|
resp = (void *) cmd; /* recast for easier field access */
|
|
status = le16_to_cpu(resp->statuscode);
|
|
|
|
/* Convert statis code of old firmware */
|
|
if (priv->fwrelease < 0x09000000)
|
|
switch (status) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
lbs_deb_assoc("invalid association parameters\n");
|
|
status = WLAN_STATUS_CAPS_UNSUPPORTED;
|
|
break;
|
|
case 2:
|
|
lbs_deb_assoc("timer expired while waiting for AP\n");
|
|
status = WLAN_STATUS_AUTH_TIMEOUT;
|
|
break;
|
|
case 3:
|
|
lbs_deb_assoc("association refused by AP\n");
|
|
status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
|
|
break;
|
|
case 4:
|
|
lbs_deb_assoc("authentication refused by AP\n");
|
|
status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
|
|
break;
|
|
default:
|
|
lbs_deb_assoc("association failure %d\n", status);
|
|
status = WLAN_STATUS_UNSPECIFIED_FAILURE;
|
|
}
|
|
|
|
lbs_deb_assoc("status %d, capability 0x%04x\n", status,
|
|
le16_to_cpu(resp->capability));
|
|
|
|
resp_ie_len = le16_to_cpu(resp->hdr.size)
|
|
- sizeof(resp->hdr)
|
|
- 6;
|
|
cfg80211_connect_result(priv->dev,
|
|
priv->assoc_bss,
|
|
sme->ie, sme->ie_len,
|
|
resp->iebuf, resp_ie_len,
|
|
status,
|
|
GFP_KERNEL);
|
|
|
|
if (status == 0) {
|
|
/* TODO: get rid of priv->connect_status */
|
|
priv->connect_status = LBS_CONNECTED;
|
|
netif_carrier_on(priv->dev);
|
|
if (!priv->tx_pending_len)
|
|
netif_tx_wake_all_queues(priv->dev);
|
|
}
|
|
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static struct cfg80211_scan_request *
|
|
_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
|
|
{
|
|
struct cfg80211_scan_request *creq = NULL;
|
|
int i, n_channels = 0;
|
|
enum ieee80211_band band;
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
if (wiphy->bands[band])
|
|
n_channels += wiphy->bands[band]->n_channels;
|
|
}
|
|
|
|
creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
|
|
n_channels * sizeof(void *),
|
|
GFP_ATOMIC);
|
|
if (!creq)
|
|
return NULL;
|
|
|
|
/* SSIDs come after channels */
|
|
creq->ssids = (void *)&creq->channels[n_channels];
|
|
creq->n_channels = n_channels;
|
|
creq->n_ssids = 1;
|
|
|
|
/* Scan all available channels */
|
|
i = 0;
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
int j;
|
|
|
|
if (!wiphy->bands[band])
|
|
continue;
|
|
|
|
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
|
|
/* ignore disabled channels */
|
|
if (wiphy->bands[band]->channels[j].flags &
|
|
IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
creq->channels[i] = &wiphy->bands[band]->channels[j];
|
|
i++;
|
|
}
|
|
}
|
|
if (i) {
|
|
/* Set real number of channels specified in creq->channels[] */
|
|
creq->n_channels = i;
|
|
|
|
/* Scan for the SSID we're going to connect to */
|
|
memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
|
|
creq->ssids[0].ssid_len = sme->ssid_len;
|
|
} else {
|
|
/* No channels found... */
|
|
kfree(creq);
|
|
creq = NULL;
|
|
}
|
|
|
|
return creq;
|
|
}
|
|
|
|
static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
|
|
struct cfg80211_connect_params *sme)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
struct cfg80211_bss *bss = NULL;
|
|
int ret = 0;
|
|
u8 preamble = RADIO_PREAMBLE_SHORT;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (!sme->bssid) {
|
|
/* Run a scan if one isn't in-progress already and if the last
|
|
* scan was done more than 2 seconds ago.
|
|
*/
|
|
if (priv->scan_req == NULL &&
|
|
time_after(jiffies, priv->last_scan + (2 * HZ))) {
|
|
struct cfg80211_scan_request *creq;
|
|
|
|
creq = _new_connect_scan_req(wiphy, sme);
|
|
if (!creq) {
|
|
ret = -EINVAL;
|
|
goto done;
|
|
}
|
|
|
|
lbs_deb_assoc("assoc: scanning for compatible AP\n");
|
|
_internal_start_scan(priv, true, creq);
|
|
}
|
|
|
|
/* Wait for any in-progress scan to complete */
|
|
lbs_deb_assoc("assoc: waiting for scan to complete\n");
|
|
wait_event_interruptible_timeout(priv->scan_q,
|
|
(priv->scan_req == NULL),
|
|
(15 * HZ));
|
|
lbs_deb_assoc("assoc: scanning competed\n");
|
|
}
|
|
|
|
/* Find the BSS we want using available scan results */
|
|
bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
|
|
sme->ssid, sme->ssid_len,
|
|
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
|
|
if (!bss) {
|
|
lbs_pr_err("assoc: bss %pM not in scan results\n",
|
|
sme->bssid);
|
|
ret = -ENOENT;
|
|
goto done;
|
|
}
|
|
lbs_deb_assoc("trying %pM\n", bss->bssid);
|
|
lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
|
|
sme->crypto.cipher_group,
|
|
sme->key_idx, sme->key_len);
|
|
|
|
/* As this is a new connection, clear locally stored WEP keys */
|
|
priv->wep_tx_key = 0;
|
|
memset(priv->wep_key, 0, sizeof(priv->wep_key));
|
|
memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
|
|
|
|
/* set/remove WEP keys */
|
|
switch (sme->crypto.cipher_group) {
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
/* Store provided WEP keys in priv-> */
|
|
priv->wep_tx_key = sme->key_idx;
|
|
priv->wep_key_len[sme->key_idx] = sme->key_len;
|
|
memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
|
|
/* Set WEP keys and WEP mode */
|
|
lbs_set_wep_keys(priv);
|
|
priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
|
|
lbs_set_mac_control(priv);
|
|
/* No RSN mode for WEP */
|
|
lbs_enable_rsn(priv, 0);
|
|
break;
|
|
case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
|
|
/*
|
|
* If we don't have no WEP, no WPA and no WPA2,
|
|
* we remove all keys like in the WPA/WPA2 setup,
|
|
* we just don't set RSN.
|
|
*
|
|
* Therefore: fall-throught
|
|
*/
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
/* Remove WEP keys and WEP mode */
|
|
lbs_remove_wep_keys(priv);
|
|
priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
|
|
lbs_set_mac_control(priv);
|
|
|
|
/* clear the WPA/WPA2 keys */
|
|
lbs_set_key_material(priv,
|
|
KEY_TYPE_ID_WEP, /* doesn't matter */
|
|
KEY_INFO_WPA_UNICAST,
|
|
NULL, 0);
|
|
lbs_set_key_material(priv,
|
|
KEY_TYPE_ID_WEP, /* doesn't matter */
|
|
KEY_INFO_WPA_MCAST,
|
|
NULL, 0);
|
|
/* RSN mode for WPA/WPA2 */
|
|
lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
|
|
break;
|
|
default:
|
|
lbs_pr_err("unsupported cipher group 0x%x\n",
|
|
sme->crypto.cipher_group);
|
|
ret = -ENOTSUPP;
|
|
goto done;
|
|
}
|
|
|
|
lbs_set_authtype(priv, sme);
|
|
lbs_set_radio(priv, preamble, 1);
|
|
|
|
/* Do the actual association */
|
|
ret = lbs_associate(priv, bss, sme);
|
|
|
|
done:
|
|
if (bss)
|
|
cfg80211_put_bss(bss);
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
|
|
u16 reason_code)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
struct cmd_ds_802_11_deauthenticate cmd;
|
|
|
|
lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
|
|
|
|
/* store for lbs_cfg_ret_disconnect() */
|
|
priv->disassoc_reason = reason_code;
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
/* Mildly ugly to use a locally store my own BSSID ... */
|
|
memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
|
|
cmd.reasoncode = cpu_to_le16(reason_code);
|
|
|
|
if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
|
|
return -EFAULT;
|
|
|
|
cfg80211_disconnected(priv->dev,
|
|
priv->disassoc_reason,
|
|
NULL, 0,
|
|
GFP_KERNEL);
|
|
priv->connect_status = LBS_DISCONNECTED;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int lbs_cfg_set_default_key(struct wiphy *wiphy,
|
|
struct net_device *netdev,
|
|
u8 key_index)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (key_index != priv->wep_tx_key) {
|
|
lbs_deb_assoc("set_default_key: to %d\n", key_index);
|
|
priv->wep_tx_key = key_index;
|
|
lbs_set_wep_keys(priv);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
|
|
u8 idx, const u8 *mac_addr,
|
|
struct key_params *params)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
u16 key_info;
|
|
u16 key_type;
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
|
|
params->cipher, mac_addr);
|
|
lbs_deb_assoc("add_key: key index %d, key len %d\n",
|
|
idx, params->key_len);
|
|
if (params->key_len)
|
|
lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
|
|
params->key, params->key_len);
|
|
|
|
lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
|
|
if (params->seq_len)
|
|
lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
|
|
params->seq, params->seq_len);
|
|
|
|
switch (params->cipher) {
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
/* actually compare if something has changed ... */
|
|
if ((priv->wep_key_len[idx] != params->key_len) ||
|
|
memcmp(priv->wep_key[idx],
|
|
params->key, params->key_len) != 0) {
|
|
priv->wep_key_len[idx] = params->key_len;
|
|
memcpy(priv->wep_key[idx],
|
|
params->key, params->key_len);
|
|
lbs_set_wep_keys(priv);
|
|
}
|
|
break;
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
|
|
? KEY_INFO_WPA_UNICAST
|
|
: KEY_INFO_WPA_MCAST);
|
|
key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
|
|
? KEY_TYPE_ID_TKIP
|
|
: KEY_TYPE_ID_AES;
|
|
lbs_set_key_material(priv,
|
|
key_type,
|
|
key_info,
|
|
params->key, params->key_len);
|
|
break;
|
|
default:
|
|
lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
|
|
ret = -ENOTSUPP;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
|
|
u8 key_index, const u8 *mac_addr)
|
|
{
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
|
|
key_index, mac_addr);
|
|
|
|
#ifdef TODO
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
/*
|
|
* I think can keep this a NO-OP, because:
|
|
|
|
* - we clear all keys whenever we do lbs_cfg_connect() anyway
|
|
* - neither "iw" nor "wpa_supplicant" won't call this during
|
|
* an ongoing connection
|
|
* - TODO: but I have to check if this is still true when
|
|
* I set the AP to periodic re-keying
|
|
* - we've not kzallec() something when we've added a key at
|
|
* lbs_cfg_connect() or lbs_cfg_add_key().
|
|
*
|
|
* This causes lbs_cfg_del_key() only called at disconnect time,
|
|
* where we'd just waste time deleting a key that is not going
|
|
* to be used anyway.
|
|
*/
|
|
if (key_index < 3 && priv->wep_key_len[key_index]) {
|
|
priv->wep_key_len[key_index] = 0;
|
|
lbs_set_wep_keys(priv);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/***************************************************************************
|
|
* Get station
|
|
*/
|
|
|
|
static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
|
|
u8 *mac, struct station_info *sinfo)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
s8 signal, noise;
|
|
int ret;
|
|
size_t i;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
sinfo->filled |= STATION_INFO_TX_BYTES |
|
|
STATION_INFO_TX_PACKETS |
|
|
STATION_INFO_RX_BYTES |
|
|
STATION_INFO_RX_PACKETS;
|
|
sinfo->tx_bytes = priv->dev->stats.tx_bytes;
|
|
sinfo->tx_packets = priv->dev->stats.tx_packets;
|
|
sinfo->rx_bytes = priv->dev->stats.rx_bytes;
|
|
sinfo->rx_packets = priv->dev->stats.rx_packets;
|
|
|
|
/* Get current RSSI */
|
|
ret = lbs_get_rssi(priv, &signal, &noise);
|
|
if (ret == 0) {
|
|
sinfo->signal = signal;
|
|
sinfo->filled |= STATION_INFO_SIGNAL;
|
|
}
|
|
|
|
/* Convert priv->cur_rate from hw_value to NL80211 value */
|
|
for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
|
|
if (priv->cur_rate == lbs_rates[i].hw_value) {
|
|
sinfo->txrate.legacy = lbs_rates[i].bitrate;
|
|
sinfo->filled |= STATION_INFO_TX_BITRATE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* "Site survey", here just current channel and noise level
|
|
*/
|
|
|
|
static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
|
|
int idx, struct survey_info *survey)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
s8 signal, noise;
|
|
int ret;
|
|
|
|
if (idx != 0)
|
|
ret = -ENOENT;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
survey->channel = ieee80211_get_channel(wiphy,
|
|
ieee80211_channel_to_frequency(priv->channel));
|
|
|
|
ret = lbs_get_rssi(priv, &signal, &noise);
|
|
if (ret == 0) {
|
|
survey->filled = SURVEY_INFO_NOISE_DBM;
|
|
survey->noise = noise;
|
|
}
|
|
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* Change interface
|
|
*/
|
|
|
|
static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
|
|
enum nl80211_iftype type, u32 *flags,
|
|
struct vif_params *params)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
switch (type) {
|
|
case NL80211_IFTYPE_MONITOR:
|
|
ret = lbs_set_monitor_mode(priv, 1);
|
|
break;
|
|
case NL80211_IFTYPE_STATION:
|
|
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
|
|
ret = lbs_set_monitor_mode(priv, 0);
|
|
if (!ret)
|
|
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
|
|
ret = lbs_set_monitor_mode(priv, 0);
|
|
if (!ret)
|
|
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
|
|
break;
|
|
default:
|
|
ret = -ENOTSUPP;
|
|
}
|
|
|
|
if (!ret)
|
|
priv->wdev->iftype = type;
|
|
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* IBSS (Ad-Hoc)
|
|
*/
|
|
|
|
/* The firmware needs the following bits masked out of the beacon-derived
|
|
* capability field when associating/joining to a BSS:
|
|
* 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
|
|
*/
|
|
#define CAPINFO_MASK (~(0xda00))
|
|
|
|
|
|
static void lbs_join_post(struct lbs_private *priv,
|
|
struct cfg80211_ibss_params *params,
|
|
u8 *bssid, u16 capability)
|
|
{
|
|
u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
|
|
2 + 4 + /* basic rates */
|
|
2 + 1 + /* DS parameter */
|
|
2 + 2 + /* atim */
|
|
2 + 8]; /* extended rates */
|
|
u8 *fake = fake_ie;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
/*
|
|
* For cfg80211_inform_bss, we'll need a fake IE, as we can't get
|
|
* the real IE from the firmware. So we fabricate a fake IE based on
|
|
* what the firmware actually sends (sniffed with wireshark).
|
|
*/
|
|
/* Fake SSID IE */
|
|
*fake++ = WLAN_EID_SSID;
|
|
*fake++ = params->ssid_len;
|
|
memcpy(fake, params->ssid, params->ssid_len);
|
|
fake += params->ssid_len;
|
|
/* Fake supported basic rates IE */
|
|
*fake++ = WLAN_EID_SUPP_RATES;
|
|
*fake++ = 4;
|
|
*fake++ = 0x82;
|
|
*fake++ = 0x84;
|
|
*fake++ = 0x8b;
|
|
*fake++ = 0x96;
|
|
/* Fake DS channel IE */
|
|
*fake++ = WLAN_EID_DS_PARAMS;
|
|
*fake++ = 1;
|
|
*fake++ = params->channel->hw_value;
|
|
/* Fake IBSS params IE */
|
|
*fake++ = WLAN_EID_IBSS_PARAMS;
|
|
*fake++ = 2;
|
|
*fake++ = 0; /* ATIM=0 */
|
|
*fake++ = 0;
|
|
/* Fake extended rates IE, TODO: don't add this for 802.11b only,
|
|
* but I don't know how this could be checked */
|
|
*fake++ = WLAN_EID_EXT_SUPP_RATES;
|
|
*fake++ = 8;
|
|
*fake++ = 0x0c;
|
|
*fake++ = 0x12;
|
|
*fake++ = 0x18;
|
|
*fake++ = 0x24;
|
|
*fake++ = 0x30;
|
|
*fake++ = 0x48;
|
|
*fake++ = 0x60;
|
|
*fake++ = 0x6c;
|
|
lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
|
|
|
|
cfg80211_inform_bss(priv->wdev->wiphy,
|
|
params->channel,
|
|
bssid,
|
|
0,
|
|
capability,
|
|
params->beacon_interval,
|
|
fake_ie, fake - fake_ie,
|
|
0, GFP_KERNEL);
|
|
|
|
memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
|
|
priv->wdev->ssid_len = params->ssid_len;
|
|
|
|
cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
|
|
|
|
/* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
|
|
priv->connect_status = LBS_CONNECTED;
|
|
netif_carrier_on(priv->dev);
|
|
if (!priv->tx_pending_len)
|
|
netif_wake_queue(priv->dev);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
}
|
|
|
|
static int lbs_ibss_join_existing(struct lbs_private *priv,
|
|
struct cfg80211_ibss_params *params,
|
|
struct cfg80211_bss *bss)
|
|
{
|
|
const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
|
|
struct cmd_ds_802_11_ad_hoc_join cmd;
|
|
u8 preamble = RADIO_PREAMBLE_SHORT;
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
/* TODO: set preamble based on scan result */
|
|
ret = lbs_set_radio(priv, preamble, 1);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/*
|
|
* Example CMD_802_11_AD_HOC_JOIN command:
|
|
*
|
|
* command 2c 00 CMD_802_11_AD_HOC_JOIN
|
|
* size 65 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* bssid 02 27 27 97 2f 96
|
|
* ssid 49 42 53 53 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* type 02 CMD_BSS_TYPE_IBSS
|
|
* beacon period 64 00
|
|
* dtim period 00
|
|
* timestamp 00 00 00 00 00 00 00 00
|
|
* localtime 00 00 00 00 00 00 00 00
|
|
* IE DS 03
|
|
* IE DS len 01
|
|
* IE DS channel 01
|
|
* reserveed 00 00 00 00
|
|
* IE IBSS 06
|
|
* IE IBSS len 02
|
|
* IE IBSS atim 00 00
|
|
* reserved 00 00 00 00
|
|
* capability 02 00
|
|
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
|
|
* fail timeout ff 00
|
|
* probe delay 00 00
|
|
*/
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
|
|
memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
|
|
memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
|
|
cmd.bss.type = CMD_BSS_TYPE_IBSS;
|
|
cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
|
|
cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
|
|
cmd.bss.ds.header.len = 1;
|
|
cmd.bss.ds.channel = params->channel->hw_value;
|
|
cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
|
|
cmd.bss.ibss.header.len = 2;
|
|
cmd.bss.ibss.atimwindow = 0;
|
|
cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
|
|
|
|
/* set rates to the intersection of our rates and the rates in the
|
|
bss */
|
|
if (!rates_eid) {
|
|
lbs_add_rates(cmd.bss.rates);
|
|
} else {
|
|
int hw, i;
|
|
u8 rates_max = rates_eid[1];
|
|
u8 *rates = cmd.bss.rates;
|
|
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
|
|
u8 hw_rate = lbs_rates[hw].bitrate / 5;
|
|
for (i = 0; i < rates_max; i++) {
|
|
if (hw_rate == (rates_eid[i+2] & 0x7f)) {
|
|
u8 rate = rates_eid[i+2];
|
|
if (rate == 0x02 || rate == 0x04 ||
|
|
rate == 0x0b || rate == 0x16)
|
|
rate |= 0x80;
|
|
*rates++ = rate;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Only v8 and below support setting this */
|
|
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
|
|
cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
|
|
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
|
|
}
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/*
|
|
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
|
|
*
|
|
* response 2c 80
|
|
* size 09 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* reserved 00
|
|
*/
|
|
lbs_join_post(priv, params, bss->bssid, bss->capability);
|
|
|
|
out:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
static int lbs_ibss_start_new(struct lbs_private *priv,
|
|
struct cfg80211_ibss_params *params)
|
|
{
|
|
struct cmd_ds_802_11_ad_hoc_start cmd;
|
|
struct cmd_ds_802_11_ad_hoc_result *resp =
|
|
(struct cmd_ds_802_11_ad_hoc_result *) &cmd;
|
|
u8 preamble = RADIO_PREAMBLE_SHORT;
|
|
int ret = 0;
|
|
u16 capability;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
ret = lbs_set_radio(priv, preamble, 1);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/*
|
|
* Example CMD_802_11_AD_HOC_START command:
|
|
*
|
|
* command 2b 00 CMD_802_11_AD_HOC_START
|
|
* size b1 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* ssid 54 45 53 54 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* 00 00 00 00 00 00 00 00
|
|
* bss type 02
|
|
* beacon period 64 00
|
|
* dtim period 00
|
|
* IE IBSS 06
|
|
* IE IBSS len 02
|
|
* IE IBSS atim 00 00
|
|
* reserved 00 00 00 00
|
|
* IE DS 03
|
|
* IE DS len 01
|
|
* IE DS channel 01
|
|
* reserved 00 00 00 00
|
|
* probe delay 00 00
|
|
* capability 02 00
|
|
* rates 82 84 8b 96 (basic rates with have bit 7 set)
|
|
* 0c 12 18 24 30 48 60 6c
|
|
* padding 100 bytes
|
|
*/
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
memcpy(cmd.ssid, params->ssid, params->ssid_len);
|
|
cmd.bsstype = CMD_BSS_TYPE_IBSS;
|
|
cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
|
|
cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
|
|
cmd.ibss.header.len = 2;
|
|
cmd.ibss.atimwindow = 0;
|
|
cmd.ds.header.id = WLAN_EID_DS_PARAMS;
|
|
cmd.ds.header.len = 1;
|
|
cmd.ds.channel = params->channel->hw_value;
|
|
/* Only v8 and below support setting probe delay */
|
|
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
|
|
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
|
|
/* TODO: mix in WLAN_CAPABILITY_PRIVACY */
|
|
capability = WLAN_CAPABILITY_IBSS;
|
|
cmd.capability = cpu_to_le16(capability);
|
|
lbs_add_rates(cmd.rates);
|
|
|
|
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/*
|
|
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
|
|
*
|
|
* response 2b 80
|
|
* size 14 00
|
|
* sequence xx xx
|
|
* result 00 00
|
|
* reserved 00
|
|
* bssid 02 2b 7b 0f 86 0e
|
|
*/
|
|
lbs_join_post(priv, params, resp->bssid, capability);
|
|
|
|
out:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
|
|
struct cfg80211_ibss_params *params)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
int ret = 0;
|
|
struct cfg80211_bss *bss;
|
|
DECLARE_SSID_BUF(ssid_buf);
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (!params->channel) {
|
|
ret = -ENOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
ret = lbs_set_channel(priv, params->channel->hw_value);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/* Search if someone is beaconing. This assumes that the
|
|
* bss list is populated already */
|
|
bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
|
|
params->ssid, params->ssid_len,
|
|
WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
|
|
|
|
if (bss) {
|
|
ret = lbs_ibss_join_existing(priv, params, bss);
|
|
cfg80211_put_bss(bss);
|
|
} else
|
|
ret = lbs_ibss_start_new(priv, params);
|
|
|
|
|
|
out:
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
struct cmd_ds_802_11_ad_hoc_stop cmd;
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
|
|
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
|
|
|
|
/* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
|
|
lbs_mac_event_disconnected(priv);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
|
|
/***************************************************************************
|
|
* Initialization
|
|
*/
|
|
|
|
static struct cfg80211_ops lbs_cfg80211_ops = {
|
|
.set_channel = lbs_cfg_set_channel,
|
|
.scan = lbs_cfg_scan,
|
|
.connect = lbs_cfg_connect,
|
|
.disconnect = lbs_cfg_disconnect,
|
|
.add_key = lbs_cfg_add_key,
|
|
.del_key = lbs_cfg_del_key,
|
|
.set_default_key = lbs_cfg_set_default_key,
|
|
.get_station = lbs_cfg_get_station,
|
|
.dump_survey = lbs_get_survey,
|
|
.change_virtual_intf = lbs_change_intf,
|
|
.join_ibss = lbs_join_ibss,
|
|
.leave_ibss = lbs_leave_ibss,
|
|
};
|
|
|
|
|
|
/*
|
|
* At this time lbs_private *priv doesn't even exist, so we just allocate
|
|
* memory and don't initialize the wiphy further. This is postponed until we
|
|
* can talk to the firmware and happens at registration time in
|
|
* lbs_cfg_wiphy_register().
|
|
*/
|
|
struct wireless_dev *lbs_cfg_alloc(struct device *dev)
|
|
{
|
|
int ret = 0;
|
|
struct wireless_dev *wdev;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
|
|
if (!wdev) {
|
|
dev_err(dev, "cannot allocate wireless device\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
|
|
if (!wdev->wiphy) {
|
|
dev_err(dev, "cannot allocate wiphy\n");
|
|
ret = -ENOMEM;
|
|
goto err_wiphy_new;
|
|
}
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return wdev;
|
|
|
|
err_wiphy_new:
|
|
kfree(wdev);
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
|
|
static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
|
|
{
|
|
struct region_code_mapping {
|
|
const char *cn;
|
|
int code;
|
|
};
|
|
|
|
/* Section 5.17.2 */
|
|
static struct region_code_mapping regmap[] = {
|
|
{"US ", 0x10}, /* US FCC */
|
|
{"CA ", 0x20}, /* Canada */
|
|
{"EU ", 0x30}, /* ETSI */
|
|
{"ES ", 0x31}, /* Spain */
|
|
{"FR ", 0x32}, /* France */
|
|
{"JP ", 0x40}, /* Japan */
|
|
};
|
|
size_t i;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(regmap); i++)
|
|
if (regmap[i].code == priv->regioncode) {
|
|
regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
|
|
break;
|
|
}
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
}
|
|
|
|
|
|
/*
|
|
* This function get's called after lbs_setup_firmware() determined the
|
|
* firmware capabities. So we can setup the wiphy according to our
|
|
* hardware/firmware.
|
|
*/
|
|
int lbs_cfg_register(struct lbs_private *priv)
|
|
{
|
|
struct wireless_dev *wdev = priv->wdev;
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
wdev->wiphy->max_scan_ssids = 1;
|
|
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
|
|
|
|
wdev->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
if (lbs_rtap_supported(priv))
|
|
wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
|
|
|
|
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
|
|
|
|
/*
|
|
* We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
|
|
* never seen a firmware without WPA
|
|
*/
|
|
wdev->wiphy->cipher_suites = cipher_suites;
|
|
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
|
|
wdev->wiphy->reg_notifier = lbs_reg_notifier;
|
|
|
|
ret = wiphy_register(wdev->wiphy);
|
|
if (ret < 0)
|
|
lbs_pr_err("cannot register wiphy device\n");
|
|
|
|
priv->wiphy_registered = true;
|
|
|
|
ret = register_netdev(priv->dev);
|
|
if (ret)
|
|
lbs_pr_err("cannot register network device\n");
|
|
|
|
INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
|
|
|
|
lbs_cfg_set_regulatory_hint(priv);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
int lbs_reg_notifier(struct wiphy *wiphy,
|
|
struct regulatory_request *request)
|
|
{
|
|
struct lbs_private *priv = wiphy_priv(wiphy);
|
|
int ret;
|
|
|
|
lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
|
|
"callback for domain %c%c\n", request->alpha2[0],
|
|
request->alpha2[1]);
|
|
|
|
ret = lbs_set_11d_domain_info(priv, request, wiphy->bands);
|
|
|
|
lbs_deb_leave(LBS_DEB_CFG80211);
|
|
return ret;
|
|
}
|
|
|
|
void lbs_scan_deinit(struct lbs_private *priv)
|
|
{
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
cancel_delayed_work_sync(&priv->scan_work);
|
|
}
|
|
|
|
|
|
void lbs_cfg_free(struct lbs_private *priv)
|
|
{
|
|
struct wireless_dev *wdev = priv->wdev;
|
|
|
|
lbs_deb_enter(LBS_DEB_CFG80211);
|
|
|
|
if (!wdev)
|
|
return;
|
|
|
|
if (priv->wiphy_registered)
|
|
wiphy_unregister(wdev->wiphy);
|
|
|
|
if (wdev->wiphy)
|
|
wiphy_free(wdev->wiphy);
|
|
|
|
kfree(wdev);
|
|
}
|