OSCL-LXR linux-6.0.1/​drivers/​net/​wireless/​marvell/​mwifiex/​join.c	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * NXP Wireless LAN device driver: association and ad-hoc start/join
  *
  * Copyright 2011-2020 NXP
  */
 
 #include "decl.h"
 #include "ioctl.h"
 #include "util.h"
 #include "fw.h"
 #include "main.h"
 #include "wmm.h"
 #include "11n.h"
 #include "11ac.h"
 
 #define CAPINFO_MASK    (~(BIT(15) | BIT(14) | BIT(12) | BIT(11) | BIT(9)))
 
 /*
  * Append a generic IE as a pass through TLV to a TLV buffer.
  *
  * This function is called from the network join command preparation routine.
  *
  * If the IE buffer has been setup by the application, this routine appends
  * the buffer as a pass through TLV type to the request.
  */
 static int
 mwifiex_cmd_append_generic_ie(struct mwifiex_private *priv, u8 **buffer)
 {
     int ret_len = 0;
     struct mwifiex_ie_types_header ie_header;
 
     /* Null Checks */
     if (!buffer)
         return 0;
     if (!(*buffer))
         return 0;
 
     /*
      * If there is a generic ie buffer setup, append it to the return
      *   parameter buffer pointer.
      */
     if (priv->gen_ie_buf_len) {
         mwifiex_dbg(priv->adapter, INFO,
                 "info: %s: append generic ie len %d to %p\n",
                 __func__, priv->gen_ie_buf_len, *buffer);
 
         /* Wrap the generic IE buffer with a pass through TLV type */
         ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
         ie_header.len = cpu_to_le16(priv->gen_ie_buf_len);
         memcpy(*buffer, &ie_header, sizeof(ie_header));
 
         /* Increment the return size and the return buffer pointer
            param */
         *buffer += sizeof(ie_header);
         ret_len += sizeof(ie_header);
 
         /* Copy the generic IE buffer to the output buffer, advance
            pointer */
         memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len);
 
         /* Increment the return size and the return buffer pointer
            param */
         *buffer += priv->gen_ie_buf_len;
         ret_len += priv->gen_ie_buf_len;
 
         /* Reset the generic IE buffer */
         priv->gen_ie_buf_len = 0;
     }
 
     /* return the length appended to the buffer */
     return ret_len;
 }
 
 /*
  * Append TSF tracking info from the scan table for the target AP.
  *
  * This function is called from the network join command preparation routine.
  *
  * The TSF table TSF sent to the firmware contains two TSF values:
  *      - The TSF of the target AP from its previous beacon/probe response
  *      - The TSF timestamp of our local MAC at the time we observed the
  *        beacon/probe response.
  *
  * The firmware uses the timestamp values to set an initial TSF value
  * in the MAC for the new association after a reassociation attempt.
  */
 static int
 mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer,
                struct mwifiex_bssdescriptor *bss_desc)
 {
     struct mwifiex_ie_types_tsf_timestamp tsf_tlv;
     __le64 tsf_val;
 
     /* Null Checks */
     if (buffer == NULL)
         return 0;
     if (*buffer == NULL)
         return 0;
 
     memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp));
 
     tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP);
     tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val));
 
     memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header));
     *buffer += sizeof(tsf_tlv.header);
 
     /* TSF at the time when beacon/probe_response was received */
     tsf_val = cpu_to_le64(bss_desc->fw_tsf);
     memcpy(*buffer, &tsf_val, sizeof(tsf_val));
     *buffer += sizeof(tsf_val);
 
     tsf_val = cpu_to_le64(bss_desc->timestamp);
 
     mwifiex_dbg(priv->adapter, INFO,
             "info: %s: TSF offset calc: %016llx - %016llx\n",
             __func__, bss_desc->timestamp, bss_desc->fw_tsf);
 
     memcpy(*buffer, &tsf_val, sizeof(tsf_val));
     *buffer += sizeof(tsf_val);
 
     return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val));
 }
 
 /*
  * This function finds out the common rates between rate1 and rate2.
  *
  * It will fill common rates in rate1 as output if found.
  *
  * NOTE: Setting the MSB of the basic rates needs to be taken
  * care of, either before or after calling this function.
  */
 static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1,
                     u32 rate1_size, u8 *rate2, u32 rate2_size)
 {
     int ret;
     u8 *ptr = rate1, *tmp;
     u32 i, j;
 
     tmp = kmemdup(rate1, rate1_size, GFP_KERNEL);
     if (!tmp) {
         mwifiex_dbg(priv->adapter, ERROR, "failed to alloc tmp buf\n");
         return -ENOMEM;
     }
 
     memset(rate1, 0, rate1_size);
 
     for (i = 0; i < rate2_size && rate2[i]; i++) {
         for (j = 0; j < rate1_size && tmp[j]; j++) {
             /* Check common rate, excluding the bit for
                basic rate */
             if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) {
                 *rate1++ = tmp[j];
                 break;
             }
         }
     }
 
     mwifiex_dbg(priv->adapter, INFO, "info: Tx data rate set to %#x\n",
             priv->data_rate);
 
     if (!priv->is_data_rate_auto) {
         while (*ptr) {
             if ((*ptr & 0x7f) == priv->data_rate) {
                 ret = 0;
                 goto done;
             }
             ptr++;
         }
         mwifiex_dbg(priv->adapter, ERROR,
                 "previously set fixed data rate %#x\t"
                 "is not compatible with the network\n",
                 priv->data_rate);
 
         ret = -1;
         goto done;
     }
 
     ret = 0;
 done:
     kfree(tmp);
     return ret;
 }
 
 /*
  * This function creates the intersection of the rates supported by a
  * target BSS and our adapter settings for use in an assoc/join command.
  */
 static int
 mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
                  struct mwifiex_bssdescriptor *bss_desc,
                  u8 *out_rates, u32 *out_rates_size)
 {
     u8 card_rates[MWIFIEX_SUPPORTED_RATES];
     u32 card_rates_size;
 
     /* Copy AP supported rates */
     memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES);
     /* Get the STA supported rates */
     card_rates_size = mwifiex_get_active_data_rates(priv, card_rates);
     /* Get the common rates between AP and STA supported rates */
     if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES,
                      card_rates, card_rates_size)) {
         *out_rates_size = 0;
         mwifiex_dbg(priv->adapter, ERROR,
                 "%s: cannot get common rates\n",
                 __func__);
         return -1;
     }
 
     *out_rates_size =
         min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES);
 
     return 0;
 }
 
 /*
  * This function appends a WPS IE. It is called from the network join command
  * preparation routine.
  *
  * If the IE buffer has been setup by the application, this routine appends
  * the buffer as a WPS TLV type to the request.
  */
 static int
 mwifiex_cmd_append_wps_ie(struct mwifiex_private *priv, u8 **buffer)
 {
     int retLen = 0;
     struct mwifiex_ie_types_header ie_header;
 
     if (!buffer || !*buffer)
         return 0;
 
     /*
      * If there is a wps ie buffer setup, append it to the return
      * parameter buffer pointer.
      */
     if (priv->wps_ie_len) {
         mwifiex_dbg(priv->adapter, CMD,
                 "cmd: append wps ie %d to %p\n",
                 priv->wps_ie_len, *buffer);
 
         /* Wrap the generic IE buffer with a pass through TLV type */
         ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
         ie_header.len = cpu_to_le16(priv->wps_ie_len);
         memcpy(*buffer, &ie_header, sizeof(ie_header));
         *buffer += sizeof(ie_header);
         retLen += sizeof(ie_header);
 
         memcpy(*buffer, priv->wps_ie, priv->wps_ie_len);
         *buffer += priv->wps_ie_len;
         retLen += priv->wps_ie_len;
 
     }
 
     kfree(priv->wps_ie);
     priv->wps_ie_len = 0;
     return retLen;
 }
 
 /*
  * This function appends a WAPI IE.
  *
  * This function is called from the network join command preparation routine.
  *
  * If the IE buffer has been setup by the application, this routine appends
  * the buffer as a WAPI TLV type to the request.
  */
 static int
 mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer)
 {
     int retLen = 0;
     struct mwifiex_ie_types_header ie_header;
 
     /* Null Checks */
     if (buffer == NULL)
         return 0;
     if (*buffer == NULL)
         return 0;
 
     /*
      * If there is a wapi ie buffer setup, append it to the return
      *   parameter buffer pointer.
      */
     if (priv->wapi_ie_len) {
         mwifiex_dbg(priv->adapter, CMD,
                 "cmd: append wapi ie %d to %p\n",
                 priv->wapi_ie_len, *buffer);
 
         /* Wrap the generic IE buffer with a pass through TLV type */
         ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE);
         ie_header.len = cpu_to_le16(priv->wapi_ie_len);
         memcpy(*buffer, &ie_header, sizeof(ie_header));
 
         /* Increment the return size and the return buffer pointer
            param */
         *buffer += sizeof(ie_header);
         retLen += sizeof(ie_header);
 
         /* Copy the wapi IE buffer to the output buffer, advance
            pointer */
         memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len);
 
         /* Increment the return size and the return buffer pointer
            param */
         *buffer += priv->wapi_ie_len;
         retLen += priv->wapi_ie_len;
 
     }
     /* return the length appended to the buffer */
     return retLen;
 }
 
 /*
  * This function appends rsn ie tlv for wpa/wpa2 security modes.
  * It is called from the network join command preparation routine.
  */
 static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv,
                       u8 **buffer)
 {
     struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv;
     int rsn_ie_len;
 
     if (!buffer || !(*buffer))
         return 0;
 
     rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer);
     rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]);
     rsn_ie_tlv->header.type = cpu_to_le16(
                  le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF);
     rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]);
     rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len)
                              & 0x00FF);
     if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2))
         memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2],
                le16_to_cpu(rsn_ie_tlv->header.len));
     else
         return -1;
 
     rsn_ie_len = sizeof(rsn_ie_tlv->header) +
                     le16_to_cpu(rsn_ie_tlv->header.len);
     *buffer += rsn_ie_len;
 
     return rsn_ie_len;
 }
 
 /*
  * This function prepares command for association.
  *
  * This sets the following parameters -
  *      - Peer MAC address
  *      - Listen interval
  *      - Beacon interval
  *      - Capability information
  *
  * ...and the following TLVs, as required -
  *      - SSID TLV
  *      - PHY TLV
  *      - SS TLV
  *      - Rates TLV
  *      - Authentication TLV
  *      - Channel TLV
  *      - WPA/WPA2 IE
  *      - 11n TLV
  *      - Vendor specific TLV
  *      - WMM TLV
  *      - WAPI IE
  *      - Generic IE
  *      - TSF TLV
  *
  * Preparation also includes -
  *      - Setting command ID and proper size
  *      - Ensuring correct endian-ness
  */
 int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
                  struct host_cmd_ds_command *cmd,
                  struct mwifiex_bssdescriptor *bss_desc)
 {
     struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
     struct mwifiex_ie_types_ssid_param_set *ssid_tlv;
     struct mwifiex_ie_types_phy_param_set *phy_tlv;
     struct mwifiex_ie_types_ss_param_set *ss_tlv;
     struct mwifiex_ie_types_rates_param_set *rates_tlv;
     struct mwifiex_ie_types_auth_type *auth_tlv;
     struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
     u8 rates[MWIFIEX_SUPPORTED_RATES];
     u32 rates_size;
     u16 tmp_cap;
     u8 *pos;
     int rsn_ie_len = 0;
 
     pos = (u8 *) assoc;
 
     cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE);
 
     /* Save so we know which BSS Desc to use in the response handler */
     priv->attempted_bss_desc = bss_desc;
 
     memcpy(assoc->peer_sta_addr,
            bss_desc->mac_address, sizeof(assoc->peer_sta_addr));
     pos += sizeof(assoc->peer_sta_addr);
 
     /* Set the listen interval */
     assoc->listen_interval = cpu_to_le16(priv->listen_interval);
     /* Set the beacon period */
     assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period);
 
     pos += sizeof(assoc->cap_info_bitmap);
     pos += sizeof(assoc->listen_interval);
     pos += sizeof(assoc->beacon_period);
     pos += sizeof(assoc->dtim_period);
 
     ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos;
     ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID);
     ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len);
     memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid,
            le16_to_cpu(ssid_tlv->header.len));
     pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len);
 
     phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos;
     phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS);
     phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set));
     memcpy(&phy_tlv->fh_ds.ds_param_set,
            &bss_desc->phy_param_set.ds_param_set.current_chan,
            sizeof(phy_tlv->fh_ds.ds_param_set));
     pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len);
 
     ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos;
     ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS);
     ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set));
     pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len);
 
     /* Get the common rates supported between the driver and the BSS Desc */
     if (mwifiex_setup_rates_from_bssdesc
         (priv, bss_desc, rates, &rates_size))
         return -1;
 
     /* Save the data rates into Current BSS state structure */
     priv->curr_bss_params.num_of_rates = rates_size;
     memcpy(&priv->curr_bss_params.data_rates, rates, rates_size);
 
     /* Setup the Rates TLV in the association command */
     rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos;
     rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES);
     rates_tlv->header.len = cpu_to_le16((u16) rates_size);
     memcpy(rates_tlv->rates, rates, rates_size);
     pos += sizeof(rates_tlv->header) + rates_size;
     mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_CMD: rates size = %d\n",
             rates_size);
 
     /* Add the Authentication type to be used for Auth frames */
     auth_tlv = (struct mwifiex_ie_types_auth_type *) pos;
     auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
     auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type));
     if (priv->sec_info.wep_enabled)
         auth_tlv->auth_type = cpu_to_le16(
                 (u16) priv->sec_info.authentication_mode);
     else
         auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM);
 
     pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len);
 
     if (IS_SUPPORT_MULTI_BANDS(priv->adapter) &&
         !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
         (!bss_desc->disable_11n) &&
         (priv->adapter->config_bands & BAND_GN ||
          priv->adapter->config_bands & BAND_AN) &&
         (bss_desc->bcn_ht_cap)
         )
         ) {
         /* Append a channel TLV for the channel the attempted AP was
            found on */
         chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
         chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
         chan_tlv->header.len =
             cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 
         memset(chan_tlv->chan_scan_param, 0x00,
                sizeof(struct mwifiex_chan_scan_param_set));
         chan_tlv->chan_scan_param[0].chan_number =
             (bss_desc->phy_param_set.ds_param_set.current_chan);
         mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Chan = %d\n",
                 chan_tlv->chan_scan_param[0].chan_number);
 
         chan_tlv->chan_scan_param[0].radio_type =
             mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
 
         mwifiex_dbg(priv->adapter, INFO, "info: Assoc: TLV Band = %d\n",
                 chan_tlv->chan_scan_param[0].radio_type);
         pos += sizeof(chan_tlv->header) +
             sizeof(struct mwifiex_chan_scan_param_set);
     }
 
     if (!priv->wps.session_enable) {
         if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
             rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
 
         if (rsn_ie_len == -1)
             return -1;
     }
 
     if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
         (!bss_desc->disable_11n) &&
         (priv->adapter->config_bands & BAND_GN ||
          priv->adapter->config_bands & BAND_AN))
         mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos);
 
     if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
         !bss_desc->disable_11n && !bss_desc->disable_11ac &&
         priv->adapter->config_bands & BAND_AAC)
         mwifiex_cmd_append_11ac_tlv(priv, bss_desc, &pos);
 
     /* Append vendor specific IE TLV */
     mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos);
 
     mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie,
                         bss_desc->bcn_ht_cap);
     if (priv->sec_info.wapi_enabled && priv->wapi_ie_len)
         mwifiex_cmd_append_wapi_ie(priv, &pos);
 
     if (priv->wps.session_enable && priv->wps_ie_len)
         mwifiex_cmd_append_wps_ie(priv, &pos);
 
     mwifiex_cmd_append_generic_ie(priv, &pos);
 
     mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
 
     mwifiex_11h_process_join(priv, &pos, bss_desc);
 
     cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
 
     /* Set the Capability info at last */
     tmp_cap = bss_desc->cap_info_bitmap;
 
     if (priv->adapter->config_bands == BAND_B)
         tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
 
     tmp_cap &= CAPINFO_MASK;
     mwifiex_dbg(priv->adapter, INFO,
             "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
             tmp_cap, CAPINFO_MASK);
     assoc->cap_info_bitmap = cpu_to_le16(tmp_cap);
 
     return 0;
 }
 
 static const char *assoc_failure_reason_to_str(u16 cap_info)
 {
     switch (cap_info) {
     case CONNECT_ERR_AUTH_ERR_STA_FAILURE:
         return "CONNECT_ERR_AUTH_ERR_STA_FAILURE";
     case CONNECT_ERR_AUTH_MSG_UNHANDLED:
         return "CONNECT_ERR_AUTH_MSG_UNHANDLED";
     case CONNECT_ERR_ASSOC_ERR_TIMEOUT:
         return "CONNECT_ERR_ASSOC_ERR_TIMEOUT";
     case CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED:
         return "CONNECT_ERR_ASSOC_ERR_AUTH_REFUSED";
     case CONNECT_ERR_STA_FAILURE:
         return "CONNECT_ERR_STA_FAILURE";
     }
 
     return "Unknown connect failure";
 }
 /*
  * Association firmware command response handler
  *
  * The response buffer for the association command has the following
  * memory layout.
  *
  * For cases where an association response was not received (indicated
  * by the CapInfo and AId field):
  *
  *     .------------------------------------------------------------.
  *     |  Header(4 * sizeof(t_u16)):  Standard command response hdr |
  *     .------------------------------------------------------------.
  *     |  cap_info/Error Return(t_u16):                             |
  *     |           0xFFFF(-1): Internal error                       |
  *     |           0xFFFE(-2): Authentication unhandled message     |
  *     |           0xFFFD(-3): Authentication refused               |
  *     |           0xFFFC(-4): Timeout waiting for AP response      |
  *     .------------------------------------------------------------.
  *     |  status_code(t_u16):                                       |
  *     |        If cap_info is -1:                                  |
  *     |           An internal firmware failure prevented the       |
  *     |           command from being processed.  The status_code   |
  *     |           will be set to 1.                                |
  *     |                                                            |
  *     |        If cap_info is -2:                                  |
  *     |           An authentication frame was received but was     |
  *     |           not handled by the firmware.  IEEE Status        |
  *     |           code for the failure is returned.                |
  *     |                                                            |
  *     |        If cap_info is -3:                                  |
  *     |           An authentication frame was received and the     |
  *     |           status_code is the IEEE Status reported in the   |
  *     |           response.                                        |
  *     |                                                            |
  *     |        If cap_info is -4:                                  |
  *     |           (1) Association response timeout                 |
  *     |           (2) Authentication response timeout              |
  *     .------------------------------------------------------------.
  *     |  a_id(t_u16): 0xFFFF                                       |
  *     .------------------------------------------------------------.
  *
  *
  * For cases where an association response was received, the IEEE
  * standard association response frame is returned:
  *
  *     .------------------------------------------------------------.
  *     |  Header(4 * sizeof(t_u16)):  Standard command response hdr |
  *     .------------------------------------------------------------.
  *     |  cap_info(t_u16): IEEE Capability                          |
  *     .------------------------------------------------------------.
  *     |  status_code(t_u16): IEEE Status Code                      |
  *     .------------------------------------------------------------.
  *     |  a_id(t_u16): IEEE Association ID                          |
  *     .------------------------------------------------------------.
  *     |  IEEE IEs(variable): Any received IEs comprising the       |
  *     |                      remaining portion of a received       |
  *     |                      association response frame.           |
  *     .------------------------------------------------------------.
  *
  * For simplistic handling, the status_code field can be used to determine
  * an association success (0) or failure (non-zero).
  */
 int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
                  struct host_cmd_ds_command *resp)
 {
     struct mwifiex_adapter *adapter = priv->adapter;
     int ret = 0;
     struct ieee_types_assoc_rsp *assoc_rsp;
     struct mwifiex_bssdescriptor *bss_desc;
     bool enable_data = true;
     u16 cap_info, status_code, aid;
     const u8 *ie_ptr;
     struct ieee80211_ht_operation *assoc_resp_ht_oper;
 
     if (!priv->attempted_bss_desc) {
         mwifiex_dbg(priv->adapter, ERROR,
                 "ASSOC_RESP: failed, association terminated by host\n");
         goto done;
     }
 
     assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
 
     cap_info = le16_to_cpu(assoc_rsp->cap_info_bitmap);
     status_code = le16_to_cpu(assoc_rsp->status_code);
     aid = le16_to_cpu(assoc_rsp->a_id);
 
     if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
         dev_err(priv->adapter->dev,
             "invalid AID value 0x%x; bits 15:14 not set\n",
             aid);
 
     aid &= ~(BIT(15) | BIT(14));
 
     priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
                    sizeof(priv->assoc_rsp_buf));
 
     assoc_rsp->a_id = cpu_to_le16(aid);
     memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
 
     if (status_code) {
         priv->adapter->dbg.num_cmd_assoc_failure++;
         mwifiex_dbg(priv->adapter, ERROR,
                 "ASSOC_RESP: failed,\t"
                 "status code=%d err=%#x a_id=%#x\n",
                 status_code, cap_info,
                 le16_to_cpu(assoc_rsp->a_id));
 
         mwifiex_dbg(priv->adapter, ERROR, "assoc failure: reason %s\n",
                 assoc_failure_reason_to_str(cap_info));
         if (cap_info == CONNECT_ERR_ASSOC_ERR_TIMEOUT) {
             if (status_code == MWIFIEX_ASSOC_CMD_FAILURE_AUTH) {
                 ret = WLAN_STATUS_AUTH_TIMEOUT;
                 mwifiex_dbg(priv->adapter, ERROR,
                         "ASSOC_RESP: AUTH timeout\n");
             } else {
                 ret = WLAN_STATUS_UNSPECIFIED_FAILURE;
                 mwifiex_dbg(priv->adapter, ERROR,
                         "ASSOC_RESP: UNSPECIFIED failure\n");
             }
         } else {
             ret = status_code;
         }
 
         goto done;
     }
 
     /* Send a Media Connected event, according to the Spec */
     priv->media_connected = true;
 
     priv->adapter->ps_state = PS_STATE_AWAKE;
     priv->adapter->pps_uapsd_mode = false;
     priv->adapter->tx_lock_flag = false;
 
     /* Set the attempted BSSID Index to current */
     bss_desc = priv->attempted_bss_desc;
 
     mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: %s\n",
             bss_desc->ssid.ssid);
 
     /* Make a copy of current BSSID descriptor */
     memcpy(&priv->curr_bss_params.bss_descriptor,
            bss_desc, sizeof(struct mwifiex_bssdescriptor));
 
     /* Update curr_bss_params */
     priv->curr_bss_params.bss_descriptor.channel
         = bss_desc->phy_param_set.ds_param_set.current_chan;
 
     priv->curr_bss_params.band = (u8) bss_desc->bss_band;
 
     if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
         priv->curr_bss_params.wmm_enabled = true;
     else
         priv->curr_bss_params.wmm_enabled = false;
 
     if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
         priv->curr_bss_params.wmm_enabled)
         priv->wmm_enabled = true;
     else
         priv->wmm_enabled = false;
 
     priv->curr_bss_params.wmm_uapsd_enabled = false;
 
     if (priv->wmm_enabled)
         priv->curr_bss_params.wmm_uapsd_enabled
             = ((bss_desc->wmm_ie.qos_info_bitmap &
                 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
 
     /* Store the bandwidth information from assoc response */
     ie_ptr = cfg80211_find_ie(WLAN_EID_HT_OPERATION, assoc_rsp->ie_buffer,
                   priv->assoc_rsp_size
                   - sizeof(struct ieee_types_assoc_rsp));
     if (ie_ptr) {
         assoc_resp_ht_oper = (struct ieee80211_ht_operation *)(ie_ptr
                     + sizeof(struct ieee_types_header));
         priv->assoc_resp_ht_param = assoc_resp_ht_oper->ht_param;
         priv->ht_param_present = true;
     } else {
         priv->ht_param_present = false;
     }
 
     mwifiex_dbg(priv->adapter, INFO,
             "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
             priv->curr_pkt_filter);
     if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
         priv->wpa_is_gtk_set = false;
 
     if (priv->wmm_enabled) {
         /* Don't re-enable carrier until we get the WMM_GET_STATUS
            event */
         enable_data = false;
     } else {
         /* Since WMM is not enabled, setup the queues with the
            defaults */
         mwifiex_wmm_setup_queue_priorities(priv, NULL);
         mwifiex_wmm_setup_ac_downgrade(priv);
     }
 
     if (enable_data)
         mwifiex_dbg(priv->adapter, INFO,
                 "info: post association, re-enabling data flow\n");
 
     /* Reset SNR/NF/RSSI values */
     priv->data_rssi_last = 0;
     priv->data_nf_last = 0;
     priv->data_rssi_avg = 0;
     priv->data_nf_avg = 0;
     priv->bcn_rssi_last = 0;
     priv->bcn_nf_last = 0;
     priv->bcn_rssi_avg = 0;
     priv->bcn_nf_avg = 0;
     priv->rxpd_rate = 0;
     priv->rxpd_htinfo = 0;
 
     mwifiex_save_curr_bcn(priv);
 
     priv->adapter->dbg.num_cmd_assoc_success++;
 
     mwifiex_dbg(priv->adapter, INFO, "info: ASSOC_RESP: associated\n");
 
     /* Add the ra_list here for infra mode as there will be only 1 ra
        always */
     mwifiex_ralist_add(priv,
                priv->curr_bss_params.bss_descriptor.mac_address);
 
     if (!netif_carrier_ok(priv->netdev))
         netif_carrier_on(priv->netdev);
     mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
 
     if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
         priv->scan_block = true;
     else
         priv->port_open = true;
 
 done:
     /* Need to indicate IOCTL complete */
     if (adapter->curr_cmd->wait_q_enabled) {
         if (ret)
             adapter->cmd_wait_q.status = -1;
         else
             adapter->cmd_wait_q.status = 0;
     }
 
     return ret;
 }
 
 /*
  * This function prepares command for ad-hoc start.
  *
  * Driver will fill up SSID, BSS mode, IBSS parameters, physical
  * parameters, probe delay, and capability information. Firmware
  * will fill up beacon period, basic rates and operational rates.
  *
  * In addition, the following TLVs are added -
  *      - Channel TLV
  *      - Vendor specific IE
  *      - WPA/WPA2 IE
  *      - HT Capabilities IE
  *      - HT Information IE
  *
  * Preparation also includes -
  *      - Setting command ID and proper size
  *      - Ensuring correct endian-ness
  */
 int
 mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
                 struct host_cmd_ds_command *cmd,
                 struct cfg80211_ssid *req_ssid)
 {
     int rsn_ie_len = 0;
     struct mwifiex_adapter *adapter = priv->adapter;
     struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
         &cmd->params.adhoc_start;
     struct mwifiex_bssdescriptor *bss_desc;
     u32 cmd_append_size = 0;
     u32 i;
     u16 tmp_cap;
     struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
     u8 radio_type;
 
     struct mwifiex_ie_types_htcap *ht_cap;
     struct mwifiex_ie_types_htinfo *ht_info;
     u8 *pos = (u8 *) adhoc_start +
             sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
 
     if (!adapter)
         return -1;
 
     cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
 
     bss_desc = &priv->curr_bss_params.bss_descriptor;
     priv->attempted_bss_desc = bss_desc;
 
     /*
      * Fill in the parameters for 2 data structures:
      *   1. struct host_cmd_ds_802_11_ad_hoc_start command
      *   2. bss_desc
      * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
      * probe delay, and Cap info.
      * Firmware will fill up beacon period, Basic rates
      * and operational rates.
      */
 
     memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
 
     if (req_ssid->ssid_len > IEEE80211_MAX_SSID_LEN)
         req_ssid->ssid_len = IEEE80211_MAX_SSID_LEN;
     memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
 
     mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n",
             adhoc_start->ssid);
 
     memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
     memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
 
     bss_desc->ssid.ssid_len = req_ssid->ssid_len;
 
     /* Set the BSS mode */
     adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
     bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
     adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
     bss_desc->beacon_period = priv->beacon_period;
 
     /* Set Physical param set */
 /* Parameter IE Id */
 #define DS_PARA_IE_ID   3
 /* Parameter IE length */
 #define DS_PARA_IE_LEN  1
 
     adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
     adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
 
     if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
                  (u16) priv->adhoc_channel, 0)) {
         struct mwifiex_chan_freq_power *cfp;
         cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
                       FIRST_VALID_CHANNEL, 0);
         if (cfp)
             priv->adhoc_channel = (u8) cfp->channel;
     }
 
     if (!priv->adhoc_channel) {
         mwifiex_dbg(adapter, ERROR,
                 "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
         return -1;
     }
 
     mwifiex_dbg(adapter, INFO,
             "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
             priv->adhoc_channel);
 
     priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
     priv->curr_bss_params.band = adapter->adhoc_start_band;
 
     bss_desc->channel = priv->adhoc_channel;
     adhoc_start->phy_param_set.ds_param_set.current_chan =
         priv->adhoc_channel;
 
     memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
            sizeof(union ieee_types_phy_param_set));
 
     /* Set IBSS param set */
 /* IBSS parameter IE Id */
 #define IBSS_PARA_IE_ID   6
 /* IBSS parameter IE length */
 #define IBSS_PARA_IE_LEN  2
 
     adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
     adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
     adhoc_start->ss_param_set.ibss_param_set.atim_window
                     = cpu_to_le16(priv->atim_window);
     memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
            sizeof(union ieee_types_ss_param_set));
 
     /* Set Capability info */
     bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
     tmp_cap = WLAN_CAPABILITY_IBSS;
 
     /* Set up privacy in bss_desc */
     if (priv->sec_info.encryption_mode) {
         /* Ad-Hoc capability privacy on */
         mwifiex_dbg(adapter, INFO,
                 "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
         bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
         tmp_cap |= WLAN_CAPABILITY_PRIVACY;
     } else {
         mwifiex_dbg(adapter, INFO,
                 "info: ADHOC_S_CMD: wep_status NOT set,\t"
                 "setting privacy to ACCEPT ALL\n");
         bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
     }
 
     memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
     mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
     if ((adapter->adhoc_start_band & BAND_G) &&
         (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
                      HostCmd_ACT_GEN_SET, 0,
                      &priv->curr_pkt_filter, false)) {
             mwifiex_dbg(adapter, ERROR,
                     "ADHOC_S_CMD: G Protection config failed\n");
             return -1;
         }
     }
     /* Find the last non zero */
     for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
         if (!adhoc_start->data_rate[i])
             break;
 
     priv->curr_bss_params.num_of_rates = i;
 
     /* Copy the ad-hoc creating rates into Current BSS rate structure */
     memcpy(&priv->curr_bss_params.data_rates,
            &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
 
     mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: rates=%4ph\n",
             adhoc_start->data_rate);
 
     mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
 
     if (IS_SUPPORT_MULTI_BANDS(adapter)) {
         /* Append a channel TLV */
         chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
         chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
         chan_tlv->header.len =
             cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 
         memset(chan_tlv->chan_scan_param, 0x00,
                sizeof(struct mwifiex_chan_scan_param_set));
         chan_tlv->chan_scan_param[0].chan_number =
             (u8) priv->curr_bss_params.bss_descriptor.channel;
 
         mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Chan = %d\n",
                 chan_tlv->chan_scan_param[0].chan_number);
 
         chan_tlv->chan_scan_param[0].radio_type
                = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
         if (adapter->adhoc_start_band & BAND_GN ||
             adapter->adhoc_start_band & BAND_AN) {
             if (adapter->sec_chan_offset ==
                         IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
                 chan_tlv->chan_scan_param[0].radio_type |=
                     (IEEE80211_HT_PARAM_CHA_SEC_ABOVE << 4);
             else if (adapter->sec_chan_offset ==
                         IEEE80211_HT_PARAM_CHA_SEC_BELOW)
                 chan_tlv->chan_scan_param[0].radio_type |=
                     (IEEE80211_HT_PARAM_CHA_SEC_BELOW << 4);
         }
         mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: TLV Band = %d\n",
                 chan_tlv->chan_scan_param[0].radio_type);
         pos += sizeof(chan_tlv->header) +
             sizeof(struct mwifiex_chan_scan_param_set);
         cmd_append_size +=
             sizeof(chan_tlv->header) +
             sizeof(struct mwifiex_chan_scan_param_set);
     }
 
     /* Append vendor specific IE TLV */
     cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
                 MWIFIEX_VSIE_MASK_ADHOC, &pos);
 
     if (priv->sec_info.wpa_enabled) {
         rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
         if (rsn_ie_len == -1)
             return -1;
         cmd_append_size += rsn_ie_len;
     }
 
     if (adapter->adhoc_11n_enabled) {
         /* Fill HT CAPABILITY */
         ht_cap = (struct mwifiex_ie_types_htcap *) pos;
         memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
         ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
         ht_cap->header.len =
                cpu_to_le16(sizeof(struct ieee80211_ht_cap));
         radio_type = mwifiex_band_to_radio_type(
                     priv->adapter->config_bands);
         mwifiex_fill_cap_info(priv, radio_type, &ht_cap->ht_cap);
 
         if (adapter->sec_chan_offset ==
                     IEEE80211_HT_PARAM_CHA_SEC_NONE) {
             u16 tmp_ht_cap;
 
             tmp_ht_cap = le16_to_cpu(ht_cap->ht_cap.cap_info);
             tmp_ht_cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
             tmp_ht_cap &= ~IEEE80211_HT_CAP_SGI_40;
             ht_cap->ht_cap.cap_info = cpu_to_le16(tmp_ht_cap);
         }
 
         pos += sizeof(struct mwifiex_ie_types_htcap);
         cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
 
         /* Fill HT INFORMATION */
         ht_info = (struct mwifiex_ie_types_htinfo *) pos;
         memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
         ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
         ht_info->header.len =
             cpu_to_le16(sizeof(struct ieee80211_ht_operation));
 
         ht_info->ht_oper.primary_chan =
             (u8) priv->curr_bss_params.bss_descriptor.channel;
         if (adapter->sec_chan_offset) {
             ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
             ht_info->ht_oper.ht_param |=
                     IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
         }
         ht_info->ht_oper.operation_mode =
              cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
         ht_info->ht_oper.basic_set[0] = 0xff;
         pos += sizeof(struct mwifiex_ie_types_htinfo);
         cmd_append_size +=
                 sizeof(struct mwifiex_ie_types_htinfo);
     }
 
     cmd->size =
         cpu_to_le16((u16)(sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
                   + S_DS_GEN + cmd_append_size));
 
     if (adapter->adhoc_start_band == BAND_B)
         tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
     else
         tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
 
     adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
 
     return 0;
 }
 
 /*
  * This function prepares command for ad-hoc join.
  *
  * Most of the parameters are set up by copying from the target BSS descriptor
  * from the scan response.
  *
  * In addition, the following TLVs are added -
  *      - Channel TLV
  *      - Vendor specific IE
  *      - WPA/WPA2 IE
  *      - 11n IE
  *
  * Preparation also includes -
  *      - Setting command ID and proper size
  *      - Ensuring correct endian-ness
  */
 int
 mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
                    struct host_cmd_ds_command *cmd,
                    struct mwifiex_bssdescriptor *bss_desc)
 {
     int rsn_ie_len = 0;
     struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
         &cmd->params.adhoc_join;
     struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
     u32 cmd_append_size = 0;
     u16 tmp_cap;
     u32 i, rates_size = 0;
     u16 curr_pkt_filter;
     u8 *pos =
         (u8 *) adhoc_join +
         sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
 
 /* Use G protection */
 #define USE_G_PROTECTION        0x02
     if (bss_desc->erp_flags & USE_G_PROTECTION) {
         curr_pkt_filter =
             priv->
             curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
 
         if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
                      HostCmd_ACT_GEN_SET, 0,
                      &curr_pkt_filter, false)) {
             mwifiex_dbg(priv->adapter, ERROR,
                     "ADHOC_J_CMD: G Protection config failed\n");
             return -1;
         }
     }
 
     priv->attempted_bss_desc = bss_desc;
 
     cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN);
 
     adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
 
     adhoc_join->bss_descriptor.beacon_period
         = cpu_to_le16(bss_desc->beacon_period);
 
     memcpy(&adhoc_join->bss_descriptor.bssid,
            &bss_desc->mac_address, ETH_ALEN);
 
     memcpy(&adhoc_join->bss_descriptor.ssid,
            &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
 
     memcpy(&adhoc_join->bss_descriptor.phy_param_set,
            &bss_desc->phy_param_set,
            sizeof(union ieee_types_phy_param_set));
 
     memcpy(&adhoc_join->bss_descriptor.ss_param_set,
            &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
 
     tmp_cap = bss_desc->cap_info_bitmap;
 
     tmp_cap &= CAPINFO_MASK;
 
     mwifiex_dbg(priv->adapter, INFO,
             "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
             tmp_cap, CAPINFO_MASK);
 
     /* Information on BSSID descriptor passed to FW */
     mwifiex_dbg(priv->adapter, INFO,
             "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n",
             adhoc_join->bss_descriptor.bssid,
             adhoc_join->bss_descriptor.ssid);
 
     for (i = 0; i < MWIFIEX_SUPPORTED_RATES &&
             bss_desc->supported_rates[i]; i++)
         ;
     rates_size = i;
 
     /* Copy Data Rates from the Rates recorded in scan response */
     memset(adhoc_join->bss_descriptor.data_rates, 0,
            sizeof(adhoc_join->bss_descriptor.data_rates));
     memcpy(adhoc_join->bss_descriptor.data_rates,
            bss_desc->supported_rates, rates_size);
 
     /* Copy the adhoc join rates into Current BSS state structure */
     priv->curr_bss_params.num_of_rates = rates_size;
     memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
            rates_size);
 
     /* Copy the channel information */
     priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
     priv->curr_bss_params.band = (u8) bss_desc->bss_band;
 
     if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled)
         tmp_cap |= WLAN_CAPABILITY_PRIVACY;
 
     if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
         /* Append a channel TLV */
         chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
         chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
         chan_tlv->header.len =
             cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
 
         memset(chan_tlv->chan_scan_param, 0x00,
                sizeof(struct mwifiex_chan_scan_param_set));
         chan_tlv->chan_scan_param[0].chan_number =
             (bss_desc->phy_param_set.ds_param_set.current_chan);
         mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Chan=%d\n",
                 chan_tlv->chan_scan_param[0].chan_number);
 
         chan_tlv->chan_scan_param[0].radio_type =
             mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
 
         mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_J_CMD: TLV Band=%d\n",
                 chan_tlv->chan_scan_param[0].radio_type);
         pos += sizeof(chan_tlv->header) +
                 sizeof(struct mwifiex_chan_scan_param_set);
         cmd_append_size += sizeof(chan_tlv->header) +
                 sizeof(struct mwifiex_chan_scan_param_set);
     }
 
     if (priv->sec_info.wpa_enabled)
         rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
     if (rsn_ie_len == -1)
         return -1;
     cmd_append_size += rsn_ie_len;
 
     if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
         cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
             bss_desc, &pos);
 
     /* Append vendor specific IE TLV */
     cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
             MWIFIEX_VSIE_MASK_ADHOC, &pos);
 
     cmd->size = cpu_to_le16
         ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
             + S_DS_GEN + cmd_append_size));
 
     adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
 
     return 0;
 }
 
 /*
  * This function handles the command response of ad-hoc start and
  * ad-hoc join.
  *
  * The function generates a device-connected event to notify
  * the applications, in case of successful ad-hoc start/join, and
  * saves the beacon buffer.
  */
 int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv,
                   struct host_cmd_ds_command *resp)
 {
     int ret = 0;
     struct mwifiex_adapter *adapter = priv->adapter;
     struct host_cmd_ds_802_11_ad_hoc_start_result *start_result =
                 &resp->params.start_result;
     struct host_cmd_ds_802_11_ad_hoc_join_result *join_result =
                 &resp->params.join_result;
     struct mwifiex_bssdescriptor *bss_desc;
     u16 cmd = le16_to_cpu(resp->command);
     u8 result;
 
     if (!priv->attempted_bss_desc) {
         mwifiex_dbg(priv->adapter, ERROR,
                 "ADHOC_RESP: failed, association terminated by host\n");
         goto done;
     }
 
     if (cmd == HostCmd_CMD_802_11_AD_HOC_START)
         result = start_result->result;
     else
         result = join_result->result;
 
     bss_desc = priv->attempted_bss_desc;
 
     /* Join result code 0 --> SUCCESS */
     if (result) {
         mwifiex_dbg(priv->adapter, ERROR, "ADHOC_RESP: failed\n");
         if (priv->media_connected)
             mwifiex_reset_connect_state(priv, result, true);
 
         memset(&priv->curr_bss_params.bss_descriptor,
                0x00, sizeof(struct mwifiex_bssdescriptor));
 
         ret = -1;
         goto done;
     }
 
     /* Send a Media Connected event, according to the Spec */
     priv->media_connected = true;
 
     if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) {
         mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_S_RESP %s\n",
                 bss_desc->ssid.ssid);
 
         /* Update the created network descriptor with the new BSSID */
         memcpy(bss_desc->mac_address,
                start_result->bssid, ETH_ALEN);
 
         priv->adhoc_state = ADHOC_STARTED;
     } else {
         /*
          * Now the join cmd should be successful.
          * If BSSID has changed use SSID to compare instead of BSSID
          */
         mwifiex_dbg(priv->adapter, INFO,
                 "info: ADHOC_J_RESP %s\n",
                 bss_desc->ssid.ssid);
 
         /*
          * Make a copy of current BSSID descriptor, only needed for
          * join since the current descriptor is already being used
          * for adhoc start
          */
         memcpy(&priv->curr_bss_params.bss_descriptor,
                bss_desc, sizeof(struct mwifiex_bssdescriptor));
 
         priv->adhoc_state = ADHOC_JOINED;
     }
 
     mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: channel = %d\n",
             priv->adhoc_channel);
     mwifiex_dbg(priv->adapter, INFO, "info: ADHOC_RESP: BSSID = %pM\n",
             priv->curr_bss_params.bss_descriptor.mac_address);
 
     if (!netif_carrier_ok(priv->netdev))
         netif_carrier_on(priv->netdev);
     mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
 
     mwifiex_save_curr_bcn(priv);
 
 done:
     /* Need to indicate IOCTL complete */
     if (adapter->curr_cmd->wait_q_enabled) {
         if (ret)
             adapter->cmd_wait_q.status = -1;
         else
             adapter->cmd_wait_q.status = 0;
 
     }
 
     return ret;
 }
 
 /*
  * This function associates to a specific BSS discovered in a scan.
  *
  * It clears any past association response stored for application
  * retrieval and calls the command preparation routine to send the
  * command to firmware.
  */
 int mwifiex_associate(struct mwifiex_private *priv,
               struct mwifiex_bssdescriptor *bss_desc)
 {
     /* Return error if the adapter is not STA role or table entry
      * is not marked as infra.
      */
     if ((GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) ||
         (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
         return -1;
 
     if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
         !bss_desc->disable_11n && !bss_desc->disable_11ac &&
         priv->adapter->config_bands & BAND_AAC)
         mwifiex_set_11ac_ba_params(priv);
     else
         mwifiex_set_ba_params(priv);
 
     /* Clear any past association response stored for application
        retrieval */
     priv->assoc_rsp_size = 0;
 
     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_ASSOCIATE,
                 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
 }
 
 /*
  * This function starts an ad-hoc network.
  *
  * It calls the command preparation routine to send the command to firmware.
  */
 int
 mwifiex_adhoc_start(struct mwifiex_private *priv,
             struct cfg80211_ssid *adhoc_ssid)
 {
     mwifiex_dbg(priv->adapter, INFO, "info: Adhoc Channel = %d\n",
             priv->adhoc_channel);
     mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.channel = %d\n",
             priv->curr_bss_params.bss_descriptor.channel);
     mwifiex_dbg(priv->adapter, INFO, "info: curr_bss_params.band = %d\n",
             priv->curr_bss_params.band);
 
     if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
         priv->adapter->config_bands & BAND_AAC)
         mwifiex_set_11ac_ba_params(priv);
     else
         mwifiex_set_ba_params(priv);
 
     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_START,
                 HostCmd_ACT_GEN_SET, 0, adhoc_ssid, true);
 }
 
 /*
  * This function joins an ad-hoc network found in a previous scan.
  *
  * It calls the command preparation routine to send the command to firmware,
  * if already not connected to the requested SSID.
  */
 int mwifiex_adhoc_join(struct mwifiex_private *priv,
                struct mwifiex_bssdescriptor *bss_desc)
 {
     mwifiex_dbg(priv->adapter, INFO,
             "info: adhoc join: curr_bss ssid =%s\n",
             priv->curr_bss_params.bss_descriptor.ssid.ssid);
     mwifiex_dbg(priv->adapter, INFO,
             "info: adhoc join: curr_bss ssid_len =%u\n",
             priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
     mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid =%s\n",
             bss_desc->ssid.ssid);
     mwifiex_dbg(priv->adapter, INFO, "info: adhoc join: ssid_len =%u\n",
             bss_desc->ssid.ssid_len);
 
     /* Check if the requested SSID is already joined */
     if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
         !mwifiex_ssid_cmp(&bss_desc->ssid,
                   &priv->curr_bss_params.bss_descriptor.ssid) &&
         (priv->curr_bss_params.bss_descriptor.bss_mode ==
                             NL80211_IFTYPE_ADHOC)) {
         mwifiex_dbg(priv->adapter, INFO,
                 "info: ADHOC_J_CMD: new ad-hoc SSID\t"
                 "is the same as current; not attempting to re-join\n");
         return -1;
     }
 
     if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info) &&
         !bss_desc->disable_11n && !bss_desc->disable_11ac &&
         priv->adapter->config_bands & BAND_AAC)
         mwifiex_set_11ac_ba_params(priv);
     else
         mwifiex_set_ba_params(priv);
 
     mwifiex_dbg(priv->adapter, INFO,
             "info: curr_bss_params.channel = %d\n",
             priv->curr_bss_params.bss_descriptor.channel);
     mwifiex_dbg(priv->adapter, INFO,
             "info: curr_bss_params.band = %c\n",
             priv->curr_bss_params.band);
 
     return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
                 HostCmd_ACT_GEN_SET, 0, bss_desc, true);
 }
 
 /*
  * This function deauthenticates/disconnects from infra network by sending
  * deauthentication request.
  */
 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
 {
     u8 mac_address[ETH_ALEN];
     int ret;
 
     if (!mac || is_zero_ether_addr(mac))
         memcpy(mac_address,
                priv->curr_bss_params.bss_descriptor.mac_address,
                ETH_ALEN);
     else
         memcpy(mac_address, mac, ETH_ALEN);
 
     ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
                    HostCmd_ACT_GEN_SET, 0, mac_address, true);
 
     return ret;
 }
 
 /*
  * This function deauthenticates/disconnects from a BSS.
  *
  * In case of infra made, it sends deauthentication request, and
  * in case of ad-hoc mode, a stop network request is sent to the firmware.
  * In AP mode, a command to stop bss is sent to firmware.
  */
 int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
 {
     int ret = 0;
 
     if (!priv->media_connected)
         return 0;
 
     switch (priv->bss_mode) {
     case NL80211_IFTYPE_STATION:
     case NL80211_IFTYPE_P2P_CLIENT:
         ret = mwifiex_deauthenticate_infra(priv, mac);
         if (ret)
             cfg80211_disconnected(priv->netdev, 0, NULL, 0,
                           true, GFP_KERNEL);
         break;
     case NL80211_IFTYPE_ADHOC:
         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_AD_HOC_STOP,
                     HostCmd_ACT_GEN_SET, 0, NULL, true);
     case NL80211_IFTYPE_AP:
         return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
                     HostCmd_ACT_GEN_SET, 0, NULL, true);
     default:
         break;
     }
 
     return ret;
 }
 
 /* This function deauthenticates/disconnects from all BSS. */
 void mwifiex_deauthenticate_all(struct mwifiex_adapter *adapter)
 {
     struct mwifiex_private *priv;
     int i;
 
     for (i = 0; i < adapter->priv_num; i++) {
         priv = adapter->priv[i];
         if (priv)
             mwifiex_deauthenticate(priv, NULL);
     }
 }
 EXPORT_SYMBOL_GPL(mwifiex_deauthenticate_all);
 
 /*
  * This function converts band to radio type used in channel TLV.
  */
 u8
 mwifiex_band_to_radio_type(u8 band)
 {
     switch (band) {
     case BAND_A:
     case BAND_AN:
     case BAND_A | BAND_AN:
     case BAND_A | BAND_AN | BAND_AAC:
         return HostCmd_SCAN_RADIO_TYPE_A;
     case BAND_B:
     case BAND_G:
     case BAND_B | BAND_G:
     default:
         return HostCmd_SCAN_RADIO_TYPE_BG;
     }
 }

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