summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/mwifiex/join.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/mwifiex/join.c')
-rw-r--r--drivers/net/wireless/mwifiex/join.c1423
1 files changed, 1423 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
new file mode 100644
index 00000000000..5eab3dc29b1
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -0,0 +1,1423 @@
+/*
+ * Marvell Wireless LAN device driver: association and ad-hoc start/join
+ *
+ * Copyright (C) 2011, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.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) {
+ dev_dbg(priv->adapter->dev, "info: %s: append generic %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->network_tsf);
+ memcpy(*buffer, &tsf_val, sizeof(tsf_val));
+ *buffer += sizeof(tsf_val);
+
+ memcpy(&tsf_val, bss_desc->time_stamp, sizeof(tsf_val));
+
+ dev_dbg(priv->adapter->dev, "info: %s: TSF offset calc: %016llx - "
+ "%016llx\n", __func__, tsf_val, bss_desc->network_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 = kmalloc(rate1_size, GFP_KERNEL);
+ if (!tmp) {
+ dev_err(priv->adapter->dev, "failed to alloc tmp buf\n");
+ return -ENOMEM;
+ }
+
+ memcpy(tmp, rate1, rate1_size);
+ memset(rate1, 0, rate1_size);
+
+ for (i = 0; rate2[i] && i < rate2_size; i++) {
+ for (j = 0; tmp[j] && j < rate1_size; j++) {
+ /* Check common rate, excluding the bit for
+ basic rate */
+ if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) {
+ *rate1++ = tmp[j];
+ break;
+ }
+ }
+ }
+
+ dev_dbg(priv->adapter->dev, "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++;
+ }
+ dev_err(priv->adapter->dev, "previously set fixed data rate %#x"
+ " 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;
+ dev_err(priv->adapter->dev, "%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 updates the scan entry TSF timestamps to reflect
+ * a new association.
+ */
+static void
+mwifiex_update_tsf_timestamps(struct mwifiex_private *priv,
+ struct mwifiex_bssdescriptor *new_bss_desc)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+ u32 table_idx;
+ long long new_tsf_base;
+ signed long long tsf_delta;
+
+ memcpy(&new_tsf_base, new_bss_desc->time_stamp, sizeof(new_tsf_base));
+
+ tsf_delta = new_tsf_base - new_bss_desc->network_tsf;
+
+ dev_dbg(adapter->dev, "info: TSF: update TSF timestamps, "
+ "0x%016llx -> 0x%016llx\n",
+ new_bss_desc->network_tsf, new_tsf_base);
+
+ for (table_idx = 0; table_idx < adapter->num_in_scan_table;
+ table_idx++)
+ adapter->scan_table[table_idx].network_tsf += tsf_delta;
+}
+
+/*
+ * 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) {
+ dev_dbg(priv->adapter->dev, "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,
+ void *data_buf)
+{
+ struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
+ struct mwifiex_bssdescriptor *bss_desc;
+ 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;
+
+ bss_desc = (struct mwifiex_bssdescriptor *) data_buf;
+ pos = (u8 *) assoc;
+
+ mwifiex_cfg_tx_buf(priv, bss_desc);
+
+ 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;
+ dev_dbg(priv->adapter->dev, "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_status == MWIFIEX_802_11_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);
+ dev_dbg(priv->adapter->dev, "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);
+
+ dev_dbg(priv->adapter->dev, "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);
+
+ /* 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);
+
+
+ mwifiex_cmd_append_generic_ie(priv, &pos);
+
+ mwifiex_cmd_append_tsf_tlv(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;
+ dev_dbg(priv->adapter->dev, "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;
+}
+
+/*
+ * 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;
+ u8 enable_data = true;
+
+ assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
+
+ priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
+ sizeof(priv->assoc_rsp_buf));
+
+ memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
+
+ if (le16_to_cpu(assoc_rsp->status_code)) {
+ priv->adapter->dbg.num_cmd_assoc_failure++;
+ dev_err(priv->adapter->dev, "ASSOC_RESP: association failed, "
+ "status code = %d, error = 0x%x, a_id = 0x%x\n",
+ le16_to_cpu(assoc_rsp->status_code),
+ le16_to_cpu(assoc_rsp->cap_info_bitmap),
+ le16_to_cpu(assoc_rsp->a_id));
+
+ ret = -1;
+ 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;
+
+ dev_dbg(priv->adapter->dev, "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;
+
+ /*
+ * Adjust the timestamps in the scan table to be relative to the newly
+ * associated AP's TSF
+ */
+ mwifiex_update_tsf_timestamps(priv, bss_desc);
+
+ 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);
+
+ dev_dbg(priv->adapter->dev, "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)
+ dev_dbg(priv->adapter->dev,
+ "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++;
+
+ dev_dbg(priv->adapter->dev, "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);
+ if (netif_queue_stopped(priv->netdev))
+ netif_wake_queue(priv->netdev);
+
+ if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
+ priv->scan_block = 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, void *data_buf)
+{
+ 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;
+ uint16_t ht_cap_info;
+ struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
+
+ 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);
+
+ memcpy(adhoc_start->ssid,
+ ((struct mwifiex_802_11_ssid *) data_buf)->ssid,
+ ((struct mwifiex_802_11_ssid *) data_buf)->ssid_len);
+
+ dev_dbg(adapter->dev, "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,
+ ((struct mwifiex_802_11_ssid *) data_buf)->ssid,
+ ((struct mwifiex_802_11_ssid *) data_buf)->ssid_len);
+
+ bss_desc->ssid.ssid_len =
+ ((struct mwifiex_802_11_ssid *) data_buf)->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_by_band_and_channel_from_cfg80211
+ (priv, adapter->adhoc_start_band, (u16)
+ priv->adhoc_channel)) {
+ struct mwifiex_chan_freq_power *cfp;
+ cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv,
+ adapter->adhoc_start_band, FIRST_VALID_CHANNEL);
+ if (cfp)
+ priv->adhoc_channel = (u8) cfp->channel;
+ }
+
+ if (!priv->adhoc_channel) {
+ dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
+ return -1;
+ }
+
+ dev_dbg(adapter->dev, "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 = le16_to_cpu(adhoc_start->cap_info_bitmap);
+ tmp_cap &= ~WLAN_CAPABILITY_ESS;
+ tmp_cap |= WLAN_CAPABILITY_IBSS;
+
+ /* Set up privacy in bss_desc */
+ if (priv->sec_info.encryption_mode) {
+ /* Ad-Hoc capability privacy on */
+ dev_dbg(adapter->dev,
+ "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 {
+ dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
+ " setting privacy to ACCEPT ALL\n");
+ bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
+ }
+
+ memset(adhoc_start->DataRate, 0, sizeof(adhoc_start->DataRate));
+ mwifiex_get_active_data_rates(priv, adhoc_start->DataRate);
+ if ((adapter->adhoc_start_band & BAND_G) &&
+ (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
+ if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
+ HostCmd_ACT_GEN_SET, 0,
+ &priv->curr_pkt_filter)) {
+ dev_err(adapter->dev,
+ "ADHOC_S_CMD: G Protection config failed\n");
+ return -1;
+ }
+ }
+ /* Find the last non zero */
+ for (i = 0; i < sizeof(adhoc_start->DataRate) &&
+ adhoc_start->DataRate[i];
+ i++)
+ ;
+
+ 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->DataRate, priv->curr_bss_params.num_of_rates);
+
+ dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
+ adhoc_start->DataRate[0], adhoc_start->DataRate[1],
+ adhoc_start->DataRate[2], adhoc_start->DataRate[3]);
+
+ dev_dbg(adapter->dev, "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;
+
+ dev_dbg(adapter->dev, "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->chan_offset == SEC_CHANNEL_ABOVE)
+ chan_tlv->chan_scan_param[0].radio_type |=
+ SECOND_CHANNEL_ABOVE;
+ else if (adapter->chan_offset == SEC_CHANNEL_BELOW)
+ chan_tlv->chan_scan_param[0].radio_type |=
+ SECOND_CHANNEL_BELOW;
+ }
+ dev_dbg(adapter->dev, "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) {
+ {
+ 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));
+ ht_cap_info = le16_to_cpu(ht_cap->ht_cap.cap_info);
+
+ ht_cap_info |= IEEE80211_HT_CAP_SGI_20;
+ if (adapter->chan_offset) {
+ ht_cap_info |= IEEE80211_HT_CAP_SGI_40;
+ ht_cap_info |= IEEE80211_HT_CAP_DSSSCCK40;
+ ht_cap_info |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+ SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask);
+ }
+
+ ht_cap->ht_cap.ampdu_params_info
+ = IEEE80211_HT_MAX_AMPDU_64K;
+ ht_cap->ht_cap.mcs.rx_mask[0] = 0xff;
+ pos += sizeof(struct mwifiex_ie_types_htcap);
+ cmd_append_size +=
+ sizeof(struct mwifiex_ie_types_htcap);
+ }
+ {
+ 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_INFORMATION);
+ ht_info->header.len =
+ cpu_to_le16(sizeof(struct ieee80211_ht_info));
+ ht_info->ht_info.control_chan =
+ (u8) priv->curr_bss_params.bss_descriptor.
+ channel;
+ if (adapter->chan_offset) {
+ ht_info->ht_info.ht_param =
+ adapter->chan_offset;
+ ht_info->ht_info.ht_param |=
+ IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
+ }
+ ht_info->ht_info.operation_mode =
+ cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+ ht_info->ht_info.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, void *data_buf)
+{
+ int rsn_ie_len = 0;
+ struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
+ &cmd->params.adhoc_join;
+ struct mwifiex_bssdescriptor *bss_desc =
+ (struct mwifiex_bssdescriptor *) data_buf;
+ 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_async(priv, HostCmd_CMD_MAC_CONTROL,
+ HostCmd_ACT_GEN_SET, 0,
+ &curr_pkt_filter)) {
+ dev_err(priv->adapter->dev,
+ "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;
+
+ dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: tmp_cap=%4X"
+ " CAPINFO_MASK=%4lX\n", tmp_cap, CAPINFO_MASK);
+
+ /* Information on BSSID descriptor passed to FW */
+ dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: BSSID = %pM, SSID = %s\n",
+ adhoc_join->bss_descriptor.bssid,
+ adhoc_join->bss_descriptor.ssid);
+
+ for (i = 0; bss_desc->supported_rates[i] &&
+ i < MWIFIEX_SUPPORTED_RATES;
+ 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_status == MWIFIEX_802_11_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);
+ dev_dbg(priv->adapter->dev, "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);
+
+ dev_dbg(priv->adapter->dev, "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_result *adhoc_result;
+ struct mwifiex_bssdescriptor *bss_desc;
+
+ adhoc_result = &resp->params.adhoc_result;
+
+ bss_desc = priv->attempted_bss_desc;
+
+ /* Join result code 0 --> SUCCESS */
+ if (le16_to_cpu(resp->result)) {
+ dev_err(priv->adapter->dev, "ADHOC_RESP: failed\n");
+ if (priv->media_connected)
+ mwifiex_reset_connect_state(priv);
+
+ 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) {
+ dev_dbg(priv->adapter->dev, "info: ADHOC_S_RESP %s\n",
+ bss_desc->ssid.ssid);
+
+ /* Update the created network descriptor with the new BSSID */
+ memcpy(bss_desc->mac_address,
+ adhoc_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
+ */
+ dev_dbg(priv->adapter->dev, "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;
+ }
+
+ dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: channel = %d\n",
+ priv->adhoc_channel);
+ dev_dbg(priv->adapter->dev, "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);
+ if (netif_queue_stopped(priv->netdev))
+ netif_wake_queue(priv->netdev);
+
+ 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)
+{
+ u8 current_bssid[ETH_ALEN];
+
+ /* Return error if the adapter or table entry is not marked as infra */
+ if ((priv->bss_mode != NL80211_IFTYPE_STATION) ||
+ (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
+ return -1;
+
+ memcpy(&current_bssid,
+ &priv->curr_bss_params.bss_descriptor.mac_address,
+ sizeof(current_bssid));
+
+ /* Clear any past association response stored for application
+ retrieval */
+ priv->assoc_rsp_size = 0;
+
+ return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_ASSOCIATE,
+ HostCmd_ACT_GEN_SET, 0, bss_desc);
+}
+
+/*
+ * 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 mwifiex_802_11_ssid *adhoc_ssid)
+{
+ dev_dbg(priv->adapter->dev, "info: Adhoc Channel = %d\n",
+ priv->adhoc_channel);
+ dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
+ priv->curr_bss_params.bss_descriptor.channel);
+ dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %d\n",
+ priv->curr_bss_params.band);
+
+ return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_START,
+ HostCmd_ACT_GEN_SET, 0, adhoc_ssid);
+}
+
+/*
+ * 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)
+{
+ dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
+ priv->curr_bss_params.bss_descriptor.ssid.ssid);
+ dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
+ priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
+ dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
+ bss_desc->ssid.ssid);
+ dev_dbg(priv->adapter->dev, "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)) {
+ dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
+ " is the same as current; not attempting to re-join\n");
+ return -1;
+ }
+
+ dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
+ priv->curr_bss_params.bss_descriptor.channel);
+ dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
+ priv->curr_bss_params.band);
+
+ return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
+ HostCmd_ACT_GEN_SET, 0, bss_desc);
+}
+
+/*
+ * 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;
+ u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
+
+ if (mac) {
+ if (!memcmp(mac, zero_mac, sizeof(zero_mac)))
+ memcpy((u8 *) &mac_address,
+ (u8 *) &priv->curr_bss_params.bss_descriptor.
+ mac_address, ETH_ALEN);
+ else
+ memcpy((u8 *) &mac_address, (u8 *) mac, ETH_ALEN);
+ } else {
+ memcpy((u8 *) &mac_address, (u8 *) &priv->curr_bss_params.
+ bss_descriptor.mac_address, ETH_ALEN);
+ }
+
+ ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
+ HostCmd_ACT_GEN_SET, 0, &mac_address);
+
+ 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.
+ */
+int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
+{
+ int ret = 0;
+
+ if (priv->media_connected) {
+ if (priv->bss_mode == NL80211_IFTYPE_STATION) {
+ ret = mwifiex_deauthenticate_infra(priv, mac);
+ } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
+ ret = mwifiex_send_cmd_sync(priv,
+ HostCmd_CMD_802_11_AD_HOC_STOP,
+ HostCmd_ACT_GEN_SET, 0, NULL);
+ }
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(mwifiex_deauthenticate);
+
+/*
+ * 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:
+ return HostCmd_SCAN_RADIO_TYPE_A;
+ case BAND_B:
+ case BAND_G:
+ case BAND_B | BAND_G:
+ default:
+ return HostCmd_SCAN_RADIO_TYPE_BG;
+ }
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 15:52:13 +0000