Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * NXP Wireless LAN device driver: AP specific command handling
0004  *
0005  * Copyright 2011-2020 NXP
0006  */
0007 
0008 #include "main.h"
0009 #include "11ac.h"
0010 #include "11n.h"
0011 
0012 /* This function parses security related parameters from cfg80211_ap_settings
0013  * and sets into FW understandable bss_config structure.
0014  */
0015 int mwifiex_set_secure_params(struct mwifiex_private *priv,
0016                   struct mwifiex_uap_bss_param *bss_config,
0017                   struct cfg80211_ap_settings *params) {
0018     int i;
0019     struct mwifiex_wep_key wep_key;
0020 
0021     if (!params->privacy) {
0022         bss_config->protocol = PROTOCOL_NO_SECURITY;
0023         bss_config->key_mgmt = KEY_MGMT_NONE;
0024         bss_config->wpa_cfg.length = 0;
0025         priv->sec_info.wep_enabled = 0;
0026         priv->sec_info.wpa_enabled = 0;
0027         priv->sec_info.wpa2_enabled = 0;
0028 
0029         return 0;
0030     }
0031 
0032     switch (params->auth_type) {
0033     case NL80211_AUTHTYPE_OPEN_SYSTEM:
0034         bss_config->auth_mode = WLAN_AUTH_OPEN;
0035         break;
0036     case NL80211_AUTHTYPE_SHARED_KEY:
0037         bss_config->auth_mode = WLAN_AUTH_SHARED_KEY;
0038         break;
0039     case NL80211_AUTHTYPE_NETWORK_EAP:
0040         bss_config->auth_mode = WLAN_AUTH_LEAP;
0041         break;
0042     default:
0043         bss_config->auth_mode = MWIFIEX_AUTH_MODE_AUTO;
0044         break;
0045     }
0046 
0047     bss_config->key_mgmt_operation |= KEY_MGMT_ON_HOST;
0048 
0049     for (i = 0; i < params->crypto.n_akm_suites; i++) {
0050         switch (params->crypto.akm_suites[i]) {
0051         case WLAN_AKM_SUITE_8021X:
0052             if (params->crypto.wpa_versions &
0053                 NL80211_WPA_VERSION_1) {
0054                 bss_config->protocol = PROTOCOL_WPA;
0055                 bss_config->key_mgmt = KEY_MGMT_EAP;
0056             }
0057             if (params->crypto.wpa_versions &
0058                 NL80211_WPA_VERSION_2) {
0059                 bss_config->protocol |= PROTOCOL_WPA2;
0060                 bss_config->key_mgmt = KEY_MGMT_EAP;
0061             }
0062             break;
0063         case WLAN_AKM_SUITE_PSK:
0064             if (params->crypto.wpa_versions &
0065                 NL80211_WPA_VERSION_1) {
0066                 bss_config->protocol = PROTOCOL_WPA;
0067                 bss_config->key_mgmt = KEY_MGMT_PSK;
0068             }
0069             if (params->crypto.wpa_versions &
0070                 NL80211_WPA_VERSION_2) {
0071                 bss_config->protocol |= PROTOCOL_WPA2;
0072                 bss_config->key_mgmt = KEY_MGMT_PSK;
0073             }
0074             break;
0075         default:
0076             break;
0077         }
0078     }
0079     for (i = 0; i < params->crypto.n_ciphers_pairwise; i++) {
0080         switch (params->crypto.ciphers_pairwise[i]) {
0081         case WLAN_CIPHER_SUITE_WEP40:
0082         case WLAN_CIPHER_SUITE_WEP104:
0083             break;
0084         case WLAN_CIPHER_SUITE_TKIP:
0085             if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
0086                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
0087                                 CIPHER_TKIP;
0088             if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
0089                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
0090                                 CIPHER_TKIP;
0091             break;
0092         case WLAN_CIPHER_SUITE_CCMP:
0093             if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
0094                 bss_config->wpa_cfg.pairwise_cipher_wpa |=
0095                                 CIPHER_AES_CCMP;
0096             if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
0097                 bss_config->wpa_cfg.pairwise_cipher_wpa2 |=
0098                                 CIPHER_AES_CCMP;
0099             break;
0100         default:
0101             break;
0102         }
0103     }
0104 
0105     switch (params->crypto.cipher_group) {
0106     case WLAN_CIPHER_SUITE_WEP40:
0107     case WLAN_CIPHER_SUITE_WEP104:
0108         if (priv->sec_info.wep_enabled) {
0109             bss_config->protocol = PROTOCOL_STATIC_WEP;
0110             bss_config->key_mgmt = KEY_MGMT_NONE;
0111             bss_config->wpa_cfg.length = 0;
0112 
0113             for (i = 0; i < NUM_WEP_KEYS; i++) {
0114                 wep_key = priv->wep_key[i];
0115                 bss_config->wep_cfg[i].key_index = i;
0116 
0117                 if (priv->wep_key_curr_index == i)
0118                     bss_config->wep_cfg[i].is_default = 1;
0119                 else
0120                     bss_config->wep_cfg[i].is_default = 0;
0121 
0122                 bss_config->wep_cfg[i].length =
0123                                  wep_key.key_length;
0124                 memcpy(&bss_config->wep_cfg[i].key,
0125                        &wep_key.key_material,
0126                        wep_key.key_length);
0127             }
0128         }
0129         break;
0130     case WLAN_CIPHER_SUITE_TKIP:
0131         bss_config->wpa_cfg.group_cipher = CIPHER_TKIP;
0132         break;
0133     case WLAN_CIPHER_SUITE_CCMP:
0134         bss_config->wpa_cfg.group_cipher = CIPHER_AES_CCMP;
0135         break;
0136     default:
0137         break;
0138     }
0139 
0140     return 0;
0141 }
0142 
0143 /* This function updates 11n related parameters from IE and sets them into
0144  * bss_config structure.
0145  */
0146 void
0147 mwifiex_set_ht_params(struct mwifiex_private *priv,
0148               struct mwifiex_uap_bss_param *bss_cfg,
0149               struct cfg80211_ap_settings *params)
0150 {
0151     const u8 *ht_ie;
0152 
0153     if (!ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
0154         return;
0155 
0156     ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, params->beacon.tail,
0157                  params->beacon.tail_len);
0158     if (ht_ie) {
0159         memcpy(&bss_cfg->ht_cap, ht_ie + 2,
0160                sizeof(struct ieee80211_ht_cap));
0161         priv->ap_11n_enabled = 1;
0162     } else {
0163         memset(&bss_cfg->ht_cap, 0, sizeof(struct ieee80211_ht_cap));
0164         bss_cfg->ht_cap.cap_info = cpu_to_le16(MWIFIEX_DEF_HT_CAP);
0165         bss_cfg->ht_cap.ampdu_params_info = MWIFIEX_DEF_AMPDU;
0166     }
0167 
0168     return;
0169 }
0170 
0171 /* This function updates 11ac related parameters from IE
0172  * and sets them into bss_config structure.
0173  */
0174 void mwifiex_set_vht_params(struct mwifiex_private *priv,
0175                 struct mwifiex_uap_bss_param *bss_cfg,
0176                 struct cfg80211_ap_settings *params)
0177 {
0178     const u8 *vht_ie;
0179 
0180     vht_ie = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, params->beacon.tail,
0181                   params->beacon.tail_len);
0182     if (vht_ie) {
0183         memcpy(&bss_cfg->vht_cap, vht_ie + 2,
0184                sizeof(struct ieee80211_vht_cap));
0185         priv->ap_11ac_enabled = 1;
0186     } else {
0187         priv->ap_11ac_enabled = 0;
0188     }
0189 
0190     return;
0191 }
0192 
0193 /* This function updates 11ac related parameters from IE
0194  * and sets them into bss_config structure.
0195  */
0196 void mwifiex_set_tpc_params(struct mwifiex_private *priv,
0197                 struct mwifiex_uap_bss_param *bss_cfg,
0198                 struct cfg80211_ap_settings *params)
0199 {
0200     const u8 *tpc_ie;
0201 
0202     tpc_ie = cfg80211_find_ie(WLAN_EID_TPC_REQUEST, params->beacon.tail,
0203                   params->beacon.tail_len);
0204     if (tpc_ie)
0205         bss_cfg->power_constraint = *(tpc_ie + 2);
0206     else
0207         bss_cfg->power_constraint = 0;
0208 }
0209 
0210 /* Enable VHT only when cfg80211_ap_settings has VHT IE.
0211  * Otherwise disable VHT.
0212  */
0213 void mwifiex_set_vht_width(struct mwifiex_private *priv,
0214                enum nl80211_chan_width width,
0215                bool ap_11ac_enable)
0216 {
0217     struct mwifiex_adapter *adapter = priv->adapter;
0218     struct mwifiex_11ac_vht_cfg vht_cfg;
0219 
0220     vht_cfg.band_config = VHT_CFG_5GHZ;
0221     vht_cfg.cap_info = adapter->hw_dot_11ac_dev_cap;
0222 
0223     if (!ap_11ac_enable) {
0224         vht_cfg.mcs_tx_set = DISABLE_VHT_MCS_SET;
0225         vht_cfg.mcs_rx_set = DISABLE_VHT_MCS_SET;
0226     } else {
0227         vht_cfg.mcs_tx_set = DEFAULT_VHT_MCS_SET;
0228         vht_cfg.mcs_rx_set = DEFAULT_VHT_MCS_SET;
0229     }
0230 
0231     vht_cfg.misc_config  = VHT_CAP_UAP_ONLY;
0232 
0233     if (ap_11ac_enable && width >= NL80211_CHAN_WIDTH_80)
0234         vht_cfg.misc_config |= VHT_BW_80_160_80P80;
0235 
0236     mwifiex_send_cmd(priv, HostCmd_CMD_11AC_CFG,
0237              HostCmd_ACT_GEN_SET, 0, &vht_cfg, true);
0238 
0239     return;
0240 }
0241 
0242 /* This function finds supported rates IE from beacon parameter and sets
0243  * these rates into bss_config structure.
0244  */
0245 void
0246 mwifiex_set_uap_rates(struct mwifiex_uap_bss_param *bss_cfg,
0247               struct cfg80211_ap_settings *params)
0248 {
0249     struct ieee_types_header *rate_ie;
0250     int var_offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
0251     const u8 *var_pos = params->beacon.head + var_offset;
0252     int len = params->beacon.head_len - var_offset;
0253     u8 rate_len = 0;
0254 
0255     rate_ie = (void *)cfg80211_find_ie(WLAN_EID_SUPP_RATES, var_pos, len);
0256     if (rate_ie) {
0257         if (rate_ie->len > MWIFIEX_SUPPORTED_RATES)
0258             return;
0259         memcpy(bss_cfg->rates, rate_ie + 1, rate_ie->len);
0260         rate_len = rate_ie->len;
0261     }
0262 
0263     rate_ie = (void *)cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
0264                        params->beacon.tail,
0265                        params->beacon.tail_len);
0266     if (rate_ie) {
0267         if (rate_ie->len > MWIFIEX_SUPPORTED_RATES - rate_len)
0268             return;
0269         memcpy(bss_cfg->rates + rate_len, rate_ie + 1, rate_ie->len);
0270     }
0271 
0272     return;
0273 }
0274 
0275 /* This function initializes some of mwifiex_uap_bss_param variables.
0276  * This helps FW in ignoring invalid values. These values may or may not
0277  * be get updated to valid ones at later stage.
0278  */
0279 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
0280 {
0281     config->bcast_ssid_ctl = 0x7F;
0282     config->radio_ctl = 0x7F;
0283     config->dtim_period = 0x7F;
0284     config->beacon_period = 0x7FFF;
0285     config->auth_mode = 0x7F;
0286     config->rts_threshold = 0x7FFF;
0287     config->frag_threshold = 0x7FFF;
0288     config->retry_limit = 0x7F;
0289     config->qos_info = 0xFF;
0290 }
0291 
0292 /* This function parses BSS related parameters from structure
0293  * and prepares TLVs specific to WPA/WPA2 security.
0294  * These TLVs are appended to command buffer.
0295  */
0296 static void
0297 mwifiex_uap_bss_wpa(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
0298 {
0299     struct host_cmd_tlv_pwk_cipher *pwk_cipher;
0300     struct host_cmd_tlv_gwk_cipher *gwk_cipher;
0301     struct host_cmd_tlv_passphrase *passphrase;
0302     struct host_cmd_tlv_akmp *tlv_akmp;
0303     struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
0304     u16 cmd_size = *param_size;
0305     u8 *tlv = *tlv_buf;
0306 
0307     tlv_akmp = (struct host_cmd_tlv_akmp *)tlv;
0308     tlv_akmp->header.type = cpu_to_le16(TLV_TYPE_UAP_AKMP);
0309     tlv_akmp->header.len = cpu_to_le16(sizeof(struct host_cmd_tlv_akmp) -
0310                     sizeof(struct mwifiex_ie_types_header));
0311     tlv_akmp->key_mgmt_operation = cpu_to_le16(bss_cfg->key_mgmt_operation);
0312     tlv_akmp->key_mgmt = cpu_to_le16(bss_cfg->key_mgmt);
0313     cmd_size += sizeof(struct host_cmd_tlv_akmp);
0314     tlv += sizeof(struct host_cmd_tlv_akmp);
0315 
0316     if (bss_cfg->wpa_cfg.pairwise_cipher_wpa & VALID_CIPHER_BITMAP) {
0317         pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
0318         pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
0319         pwk_cipher->header.len =
0320             cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
0321                     sizeof(struct mwifiex_ie_types_header));
0322         pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA);
0323         pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa;
0324         cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
0325         tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
0326     }
0327 
0328     if (bss_cfg->wpa_cfg.pairwise_cipher_wpa2 & VALID_CIPHER_BITMAP) {
0329         pwk_cipher = (struct host_cmd_tlv_pwk_cipher *)tlv;
0330         pwk_cipher->header.type = cpu_to_le16(TLV_TYPE_PWK_CIPHER);
0331         pwk_cipher->header.len =
0332             cpu_to_le16(sizeof(struct host_cmd_tlv_pwk_cipher) -
0333                     sizeof(struct mwifiex_ie_types_header));
0334         pwk_cipher->proto = cpu_to_le16(PROTOCOL_WPA2);
0335         pwk_cipher->cipher = bss_cfg->wpa_cfg.pairwise_cipher_wpa2;
0336         cmd_size += sizeof(struct host_cmd_tlv_pwk_cipher);
0337         tlv += sizeof(struct host_cmd_tlv_pwk_cipher);
0338     }
0339 
0340     if (bss_cfg->wpa_cfg.group_cipher & VALID_CIPHER_BITMAP) {
0341         gwk_cipher = (struct host_cmd_tlv_gwk_cipher *)tlv;
0342         gwk_cipher->header.type = cpu_to_le16(TLV_TYPE_GWK_CIPHER);
0343         gwk_cipher->header.len =
0344             cpu_to_le16(sizeof(struct host_cmd_tlv_gwk_cipher) -
0345                     sizeof(struct mwifiex_ie_types_header));
0346         gwk_cipher->cipher = bss_cfg->wpa_cfg.group_cipher;
0347         cmd_size += sizeof(struct host_cmd_tlv_gwk_cipher);
0348         tlv += sizeof(struct host_cmd_tlv_gwk_cipher);
0349     }
0350 
0351     if (bss_cfg->wpa_cfg.length) {
0352         passphrase = (struct host_cmd_tlv_passphrase *)tlv;
0353         passphrase->header.type =
0354                 cpu_to_le16(TLV_TYPE_UAP_WPA_PASSPHRASE);
0355         passphrase->header.len = cpu_to_le16(bss_cfg->wpa_cfg.length);
0356         memcpy(passphrase->passphrase, bss_cfg->wpa_cfg.passphrase,
0357                bss_cfg->wpa_cfg.length);
0358         cmd_size += sizeof(struct mwifiex_ie_types_header) +
0359                 bss_cfg->wpa_cfg.length;
0360         tlv += sizeof(struct mwifiex_ie_types_header) +
0361                 bss_cfg->wpa_cfg.length;
0362     }
0363 
0364     *param_size = cmd_size;
0365     *tlv_buf = tlv;
0366 
0367     return;
0368 }
0369 
0370 /* This function parses WMM related parameters from cfg80211_ap_settings
0371  * structure and updates bss_config structure.
0372  */
0373 void
0374 mwifiex_set_wmm_params(struct mwifiex_private *priv,
0375                struct mwifiex_uap_bss_param *bss_cfg,
0376                struct cfg80211_ap_settings *params)
0377 {
0378     const u8 *vendor_ie;
0379     const u8 *wmm_ie;
0380     static const u8 wmm_oui[] = {0x00, 0x50, 0xf2, 0x02};
0381 
0382     vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
0383                         WLAN_OUI_TYPE_MICROSOFT_WMM,
0384                         params->beacon.tail,
0385                         params->beacon.tail_len);
0386     if (vendor_ie) {
0387         wmm_ie = vendor_ie;
0388         if (*(wmm_ie + 1) > sizeof(struct mwifiex_types_wmm_info))
0389             return;
0390         memcpy(&bss_cfg->wmm_info, wmm_ie +
0391                sizeof(struct ieee_types_header), *(wmm_ie + 1));
0392         priv->wmm_enabled = 1;
0393     } else {
0394         memset(&bss_cfg->wmm_info, 0, sizeof(bss_cfg->wmm_info));
0395         memcpy(&bss_cfg->wmm_info.oui, wmm_oui, sizeof(wmm_oui));
0396         bss_cfg->wmm_info.subtype = MWIFIEX_WMM_SUBTYPE;
0397         bss_cfg->wmm_info.version = MWIFIEX_WMM_VERSION;
0398         priv->wmm_enabled = 0;
0399     }
0400 
0401     bss_cfg->qos_info = 0x00;
0402     return;
0403 }
0404 /* This function parses BSS related parameters from structure
0405  * and prepares TLVs specific to WEP encryption.
0406  * These TLVs are appended to command buffer.
0407  */
0408 static void
0409 mwifiex_uap_bss_wep(u8 **tlv_buf, void *cmd_buf, u16 *param_size)
0410 {
0411     struct host_cmd_tlv_wep_key *wep_key;
0412     u16 cmd_size = *param_size;
0413     int i;
0414     u8 *tlv = *tlv_buf;
0415     struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
0416 
0417     for (i = 0; i < NUM_WEP_KEYS; i++) {
0418         if (bss_cfg->wep_cfg[i].length &&
0419             (bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP40 ||
0420              bss_cfg->wep_cfg[i].length == WLAN_KEY_LEN_WEP104)) {
0421             wep_key = (struct host_cmd_tlv_wep_key *)tlv;
0422             wep_key->header.type =
0423                 cpu_to_le16(TLV_TYPE_UAP_WEP_KEY);
0424             wep_key->header.len =
0425                 cpu_to_le16(bss_cfg->wep_cfg[i].length + 2);
0426             wep_key->key_index = bss_cfg->wep_cfg[i].key_index;
0427             wep_key->is_default = bss_cfg->wep_cfg[i].is_default;
0428             memcpy(wep_key->key, bss_cfg->wep_cfg[i].key,
0429                    bss_cfg->wep_cfg[i].length);
0430             cmd_size += sizeof(struct mwifiex_ie_types_header) + 2 +
0431                     bss_cfg->wep_cfg[i].length;
0432             tlv += sizeof(struct mwifiex_ie_types_header) + 2 +
0433                     bss_cfg->wep_cfg[i].length;
0434         }
0435     }
0436 
0437     *param_size = cmd_size;
0438     *tlv_buf = tlv;
0439 
0440     return;
0441 }
0442 
0443 /* This function enable 11D if userspace set the country IE.
0444  */
0445 void mwifiex_config_uap_11d(struct mwifiex_private *priv,
0446                 struct cfg80211_beacon_data *beacon_data)
0447 {
0448     enum state_11d_t state_11d;
0449     const u8 *country_ie;
0450 
0451     country_ie = cfg80211_find_ie(WLAN_EID_COUNTRY, beacon_data->tail,
0452                       beacon_data->tail_len);
0453     if (country_ie) {
0454         /* Send cmd to FW to enable 11D function */
0455         state_11d = ENABLE_11D;
0456         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
0457                      HostCmd_ACT_GEN_SET, DOT11D_I,
0458                      &state_11d, true)) {
0459             mwifiex_dbg(priv->adapter, ERROR,
0460                     "11D: failed to enable 11D\n");
0461         }
0462     }
0463 }
0464 
0465 /* This function parses BSS related parameters from structure
0466  * and prepares TLVs. These TLVs are appended to command buffer.
0467 */
0468 static int
0469 mwifiex_uap_bss_param_prepare(u8 *tlv, void *cmd_buf, u16 *param_size)
0470 {
0471     struct host_cmd_tlv_dtim_period *dtim_period;
0472     struct host_cmd_tlv_beacon_period *beacon_period;
0473     struct host_cmd_tlv_ssid *ssid;
0474     struct host_cmd_tlv_bcast_ssid *bcast_ssid;
0475     struct host_cmd_tlv_channel_band *chan_band;
0476     struct host_cmd_tlv_frag_threshold *frag_threshold;
0477     struct host_cmd_tlv_rts_threshold *rts_threshold;
0478     struct host_cmd_tlv_retry_limit *retry_limit;
0479     struct host_cmd_tlv_encrypt_protocol *encrypt_protocol;
0480     struct host_cmd_tlv_auth_type *auth_type;
0481     struct host_cmd_tlv_rates *tlv_rates;
0482     struct host_cmd_tlv_ageout_timer *ao_timer, *ps_ao_timer;
0483     struct host_cmd_tlv_power_constraint *pwr_ct;
0484     struct mwifiex_ie_types_htcap *htcap;
0485     struct mwifiex_ie_types_wmmcap *wmm_cap;
0486     struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
0487     int i;
0488     u16 cmd_size = *param_size;
0489 
0490     if (bss_cfg->ssid.ssid_len) {
0491         ssid = (struct host_cmd_tlv_ssid *)tlv;
0492         ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
0493         ssid->header.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
0494         memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
0495         cmd_size += sizeof(struct mwifiex_ie_types_header) +
0496                 bss_cfg->ssid.ssid_len;
0497         tlv += sizeof(struct mwifiex_ie_types_header) +
0498                 bss_cfg->ssid.ssid_len;
0499 
0500         bcast_ssid = (struct host_cmd_tlv_bcast_ssid *)tlv;
0501         bcast_ssid->header.type = cpu_to_le16(TLV_TYPE_UAP_BCAST_SSID);
0502         bcast_ssid->header.len =
0503                 cpu_to_le16(sizeof(bcast_ssid->bcast_ctl));
0504         bcast_ssid->bcast_ctl = bss_cfg->bcast_ssid_ctl;
0505         cmd_size += sizeof(struct host_cmd_tlv_bcast_ssid);
0506         tlv += sizeof(struct host_cmd_tlv_bcast_ssid);
0507     }
0508     if (bss_cfg->rates[0]) {
0509         tlv_rates = (struct host_cmd_tlv_rates *)tlv;
0510         tlv_rates->header.type = cpu_to_le16(TLV_TYPE_UAP_RATES);
0511 
0512         for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_cfg->rates[i];
0513              i++)
0514             tlv_rates->rates[i] = bss_cfg->rates[i];
0515 
0516         tlv_rates->header.len = cpu_to_le16(i);
0517         cmd_size += sizeof(struct host_cmd_tlv_rates) + i;
0518         tlv += sizeof(struct host_cmd_tlv_rates) + i;
0519     }
0520     if (bss_cfg->channel &&
0521         (((bss_cfg->band_cfg & BIT(0)) == BAND_CONFIG_BG &&
0522           bss_cfg->channel <= MAX_CHANNEL_BAND_BG) ||
0523         ((bss_cfg->band_cfg & BIT(0)) == BAND_CONFIG_A &&
0524          bss_cfg->channel <= MAX_CHANNEL_BAND_A))) {
0525         chan_band = (struct host_cmd_tlv_channel_band *)tlv;
0526         chan_band->header.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
0527         chan_band->header.len =
0528             cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
0529                     sizeof(struct mwifiex_ie_types_header));
0530         chan_band->band_config = bss_cfg->band_cfg;
0531         chan_band->channel = bss_cfg->channel;
0532         cmd_size += sizeof(struct host_cmd_tlv_channel_band);
0533         tlv += sizeof(struct host_cmd_tlv_channel_band);
0534     }
0535     if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
0536         bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
0537         beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
0538         beacon_period->header.type =
0539                     cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
0540         beacon_period->header.len =
0541             cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
0542                     sizeof(struct mwifiex_ie_types_header));
0543         beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
0544         cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
0545         tlv += sizeof(struct host_cmd_tlv_beacon_period);
0546     }
0547     if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
0548         bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
0549         dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
0550         dtim_period->header.type =
0551             cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
0552         dtim_period->header.len =
0553             cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
0554                     sizeof(struct mwifiex_ie_types_header));
0555         dtim_period->period = bss_cfg->dtim_period;
0556         cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
0557         tlv += sizeof(struct host_cmd_tlv_dtim_period);
0558     }
0559     if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
0560         rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
0561         rts_threshold->header.type =
0562                     cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
0563         rts_threshold->header.len =
0564             cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
0565                     sizeof(struct mwifiex_ie_types_header));
0566         rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
0567         cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
0568         tlv += sizeof(struct host_cmd_tlv_frag_threshold);
0569     }
0570     if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
0571         (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
0572         frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
0573         frag_threshold->header.type =
0574                 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
0575         frag_threshold->header.len =
0576             cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
0577                     sizeof(struct mwifiex_ie_types_header));
0578         frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
0579         cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
0580         tlv += sizeof(struct host_cmd_tlv_frag_threshold);
0581     }
0582     if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
0583         retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
0584         retry_limit->header.type =
0585             cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
0586         retry_limit->header.len =
0587             cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
0588                     sizeof(struct mwifiex_ie_types_header));
0589         retry_limit->limit = (u8)bss_cfg->retry_limit;
0590         cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
0591         tlv += sizeof(struct host_cmd_tlv_retry_limit);
0592     }
0593     if ((bss_cfg->protocol & PROTOCOL_WPA) ||
0594         (bss_cfg->protocol & PROTOCOL_WPA2) ||
0595         (bss_cfg->protocol & PROTOCOL_EAP))
0596         mwifiex_uap_bss_wpa(&tlv, cmd_buf, &cmd_size);
0597     else
0598         mwifiex_uap_bss_wep(&tlv, cmd_buf, &cmd_size);
0599 
0600     if ((bss_cfg->auth_mode <= WLAN_AUTH_SHARED_KEY) ||
0601         (bss_cfg->auth_mode == MWIFIEX_AUTH_MODE_AUTO)) {
0602         auth_type = (struct host_cmd_tlv_auth_type *)tlv;
0603         auth_type->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
0604         auth_type->header.len =
0605             cpu_to_le16(sizeof(struct host_cmd_tlv_auth_type) -
0606             sizeof(struct mwifiex_ie_types_header));
0607         auth_type->auth_type = (u8)bss_cfg->auth_mode;
0608         cmd_size += sizeof(struct host_cmd_tlv_auth_type);
0609         tlv += sizeof(struct host_cmd_tlv_auth_type);
0610     }
0611     if (bss_cfg->protocol) {
0612         encrypt_protocol = (struct host_cmd_tlv_encrypt_protocol *)tlv;
0613         encrypt_protocol->header.type =
0614             cpu_to_le16(TLV_TYPE_UAP_ENCRY_PROTOCOL);
0615         encrypt_protocol->header.len =
0616             cpu_to_le16(sizeof(struct host_cmd_tlv_encrypt_protocol)
0617             - sizeof(struct mwifiex_ie_types_header));
0618         encrypt_protocol->proto = cpu_to_le16(bss_cfg->protocol);
0619         cmd_size += sizeof(struct host_cmd_tlv_encrypt_protocol);
0620         tlv += sizeof(struct host_cmd_tlv_encrypt_protocol);
0621     }
0622 
0623     if (bss_cfg->ht_cap.cap_info) {
0624         htcap = (struct mwifiex_ie_types_htcap *)tlv;
0625         htcap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
0626         htcap->header.len =
0627                 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
0628         htcap->ht_cap.cap_info = bss_cfg->ht_cap.cap_info;
0629         htcap->ht_cap.ampdu_params_info =
0630                          bss_cfg->ht_cap.ampdu_params_info;
0631         memcpy(&htcap->ht_cap.mcs, &bss_cfg->ht_cap.mcs,
0632                sizeof(struct ieee80211_mcs_info));
0633         htcap->ht_cap.extended_ht_cap_info =
0634                     bss_cfg->ht_cap.extended_ht_cap_info;
0635         htcap->ht_cap.tx_BF_cap_info = bss_cfg->ht_cap.tx_BF_cap_info;
0636         htcap->ht_cap.antenna_selection_info =
0637                     bss_cfg->ht_cap.antenna_selection_info;
0638         cmd_size += sizeof(struct mwifiex_ie_types_htcap);
0639         tlv += sizeof(struct mwifiex_ie_types_htcap);
0640     }
0641 
0642     if (bss_cfg->wmm_info.qos_info != 0xFF) {
0643         wmm_cap = (struct mwifiex_ie_types_wmmcap *)tlv;
0644         wmm_cap->header.type = cpu_to_le16(WLAN_EID_VENDOR_SPECIFIC);
0645         wmm_cap->header.len = cpu_to_le16(sizeof(wmm_cap->wmm_info));
0646         memcpy(&wmm_cap->wmm_info, &bss_cfg->wmm_info,
0647                sizeof(wmm_cap->wmm_info));
0648         cmd_size += sizeof(struct mwifiex_ie_types_wmmcap);
0649         tlv += sizeof(struct mwifiex_ie_types_wmmcap);
0650     }
0651 
0652     if (bss_cfg->sta_ao_timer) {
0653         ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
0654         ao_timer->header.type = cpu_to_le16(TLV_TYPE_UAP_AO_TIMER);
0655         ao_timer->header.len = cpu_to_le16(sizeof(*ao_timer) -
0656                     sizeof(struct mwifiex_ie_types_header));
0657         ao_timer->sta_ao_timer = cpu_to_le32(bss_cfg->sta_ao_timer);
0658         cmd_size += sizeof(*ao_timer);
0659         tlv += sizeof(*ao_timer);
0660     }
0661 
0662     if (bss_cfg->power_constraint) {
0663         pwr_ct = (void *)tlv;
0664         pwr_ct->header.type = cpu_to_le16(TLV_TYPE_PWR_CONSTRAINT);
0665         pwr_ct->header.len = cpu_to_le16(sizeof(u8));
0666         pwr_ct->constraint = bss_cfg->power_constraint;
0667         cmd_size += sizeof(*pwr_ct);
0668         tlv += sizeof(*pwr_ct);
0669     }
0670 
0671     if (bss_cfg->ps_sta_ao_timer) {
0672         ps_ao_timer = (struct host_cmd_tlv_ageout_timer *)tlv;
0673         ps_ao_timer->header.type =
0674                 cpu_to_le16(TLV_TYPE_UAP_PS_AO_TIMER);
0675         ps_ao_timer->header.len = cpu_to_le16(sizeof(*ps_ao_timer) -
0676                 sizeof(struct mwifiex_ie_types_header));
0677         ps_ao_timer->sta_ao_timer =
0678                     cpu_to_le32(bss_cfg->ps_sta_ao_timer);
0679         cmd_size += sizeof(*ps_ao_timer);
0680         tlv += sizeof(*ps_ao_timer);
0681     }
0682 
0683     *param_size = cmd_size;
0684 
0685     return 0;
0686 }
0687 
0688 /* This function parses custom IEs from IE list and prepares command buffer */
0689 static int mwifiex_uap_custom_ie_prepare(u8 *tlv, void *cmd_buf, u16 *ie_size)
0690 {
0691     struct mwifiex_ie_list *ap_ie = cmd_buf;
0692     struct mwifiex_ie_types_header *tlv_ie = (void *)tlv;
0693 
0694     if (!ap_ie || !ap_ie->len)
0695         return -1;
0696 
0697     *ie_size += le16_to_cpu(ap_ie->len) +
0698             sizeof(struct mwifiex_ie_types_header);
0699 
0700     tlv_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
0701     tlv_ie->len = ap_ie->len;
0702     tlv += sizeof(struct mwifiex_ie_types_header);
0703 
0704     memcpy(tlv, ap_ie->ie_list, le16_to_cpu(ap_ie->len));
0705 
0706     return 0;
0707 }
0708 
0709 /* Parse AP config structure and prepare TLV based command structure
0710  * to be sent to FW for uAP configuration
0711  */
0712 static int
0713 mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
0714                u32 type, void *cmd_buf)
0715 {
0716     u8 *tlv;
0717     u16 cmd_size, param_size, ie_size;
0718     struct host_cmd_ds_sys_config *sys_cfg;
0719 
0720     cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
0721     cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
0722     sys_cfg = (struct host_cmd_ds_sys_config *)&cmd->params.uap_sys_config;
0723     sys_cfg->action = cpu_to_le16(cmd_action);
0724     tlv = sys_cfg->tlv;
0725 
0726     switch (type) {
0727     case UAP_BSS_PARAMS_I:
0728         param_size = cmd_size;
0729         if (mwifiex_uap_bss_param_prepare(tlv, cmd_buf, &param_size))
0730             return -1;
0731         cmd->size = cpu_to_le16(param_size);
0732         break;
0733     case UAP_CUSTOM_IE_I:
0734         ie_size = cmd_size;
0735         if (mwifiex_uap_custom_ie_prepare(tlv, cmd_buf, &ie_size))
0736             return -1;
0737         cmd->size = cpu_to_le16(ie_size);
0738         break;
0739     default:
0740         return -1;
0741     }
0742 
0743     return 0;
0744 }
0745 
0746 /* This function prepares AP specific deauth command with mac supplied in
0747  * function parameter.
0748  */
0749 static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
0750                       struct host_cmd_ds_command *cmd, u8 *mac)
0751 {
0752     struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
0753 
0754     cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
0755     memcpy(sta_deauth->mac, mac, ETH_ALEN);
0756     sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
0757 
0758     cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
0759                 S_DS_GEN);
0760     return 0;
0761 }
0762 
0763 /* This function prepares the AP specific commands before sending them
0764  * to the firmware.
0765  * This is a generic function which calls specific command preparation
0766  * routines based upon the command number.
0767  */
0768 int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
0769                 u16 cmd_action, u32 type,
0770                 void *data_buf, void *cmd_buf)
0771 {
0772     struct host_cmd_ds_command *cmd = cmd_buf;
0773 
0774     switch (cmd_no) {
0775     case HostCmd_CMD_UAP_SYS_CONFIG:
0776         if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, type, data_buf))
0777             return -1;
0778         break;
0779     case HostCmd_CMD_UAP_BSS_START:
0780     case HostCmd_CMD_UAP_BSS_STOP:
0781     case HOST_CMD_APCMD_SYS_RESET:
0782     case HOST_CMD_APCMD_STA_LIST:
0783         cmd->command = cpu_to_le16(cmd_no);
0784         cmd->size = cpu_to_le16(S_DS_GEN);
0785         break;
0786     case HostCmd_CMD_UAP_STA_DEAUTH:
0787         if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
0788             return -1;
0789         break;
0790     case HostCmd_CMD_CHAN_REPORT_REQUEST:
0791         if (mwifiex_cmd_issue_chan_report_request(priv, cmd_buf,
0792                               data_buf))
0793             return -1;
0794         break;
0795     default:
0796         mwifiex_dbg(priv->adapter, ERROR,
0797                 "PREP_CMD: unknown cmd %#x\n", cmd_no);
0798         return -1;
0799     }
0800 
0801     return 0;
0802 }
0803 
0804 void mwifiex_uap_set_channel(struct mwifiex_private *priv,
0805                  struct mwifiex_uap_bss_param *bss_cfg,
0806                  struct cfg80211_chan_def chandef)
0807 {
0808     u8 config_bands = 0, old_bands = priv->adapter->config_bands;
0809 
0810     priv->bss_chandef = chandef;
0811 
0812     bss_cfg->channel = ieee80211_frequency_to_channel(
0813                              chandef.chan->center_freq);
0814 
0815     /* Set appropriate bands */
0816     if (chandef.chan->band == NL80211_BAND_2GHZ) {
0817         bss_cfg->band_cfg = BAND_CONFIG_BG;
0818         config_bands = BAND_B | BAND_G;
0819 
0820         if (chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
0821             config_bands |= BAND_GN;
0822     } else {
0823         bss_cfg->band_cfg = BAND_CONFIG_A;
0824         config_bands = BAND_A;
0825 
0826         if (chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
0827             config_bands |= BAND_AN;
0828 
0829         if (chandef.width > NL80211_CHAN_WIDTH_40)
0830             config_bands |= BAND_AAC;
0831     }
0832 
0833     switch (chandef.width) {
0834     case NL80211_CHAN_WIDTH_5:
0835     case NL80211_CHAN_WIDTH_10:
0836     case NL80211_CHAN_WIDTH_20_NOHT:
0837     case NL80211_CHAN_WIDTH_20:
0838         break;
0839     case NL80211_CHAN_WIDTH_40:
0840         if (chandef.center_freq1 < chandef.chan->center_freq)
0841             bss_cfg->band_cfg |= MWIFIEX_SEC_CHAN_BELOW;
0842         else
0843             bss_cfg->band_cfg |= MWIFIEX_SEC_CHAN_ABOVE;
0844         break;
0845     case NL80211_CHAN_WIDTH_80:
0846     case NL80211_CHAN_WIDTH_80P80:
0847     case NL80211_CHAN_WIDTH_160:
0848         bss_cfg->band_cfg |=
0849             mwifiex_get_sec_chan_offset(bss_cfg->channel) << 4;
0850         break;
0851     default:
0852         mwifiex_dbg(priv->adapter,
0853                 WARN, "Unknown channel width: %d\n",
0854                 chandef.width);
0855         break;
0856     }
0857 
0858     priv->adapter->config_bands = config_bands;
0859 
0860     if (old_bands != config_bands) {
0861         mwifiex_send_domain_info_cmd_fw(priv->adapter->wiphy);
0862         mwifiex_dnld_txpwr_table(priv);
0863     }
0864 }
0865 
0866 int mwifiex_config_start_uap(struct mwifiex_private *priv,
0867                  struct mwifiex_uap_bss_param *bss_cfg)
0868 {
0869     if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
0870                  HostCmd_ACT_GEN_SET,
0871                  UAP_BSS_PARAMS_I, bss_cfg, true)) {
0872         mwifiex_dbg(priv->adapter, ERROR,
0873                 "Failed to set AP configuration\n");
0874         return -1;
0875     }
0876 
0877     if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
0878                  HostCmd_ACT_GEN_SET, 0, NULL, true)) {
0879         mwifiex_dbg(priv->adapter, ERROR,
0880                 "Failed to start the BSS\n");
0881         return -1;
0882     }
0883 
0884     if (priv->sec_info.wep_enabled)
0885         priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
0886     else
0887         priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
0888 
0889     if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
0890                  HostCmd_ACT_GEN_SET, 0,
0891                  &priv->curr_pkt_filter, true))
0892         return -1;
0893 
0894     return 0;
0895 }
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!