diff options
Diffstat (limited to 'kernel/drivers/net/wireless/mwifiex/sta_ioctl.c')
| -rw-r--r-- | kernel/drivers/net/wireless/mwifiex/sta_ioctl.c | 1400 |
1 files changed, 1400 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/mwifiex/sta_ioctl.c b/kernel/drivers/net/wireless/mwifiex/sta_ioctl.c new file mode 100644 index 000000000..0599e41e2 --- /dev/null +++ b/kernel/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -0,0 +1,1400 @@ +/* + * Marvell Wireless LAN device driver: functions for station ioctl + * + * Copyright (C) 2011-2014, 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" +#include "cfg80211.h" + +static int disconnect_on_suspend; +module_param(disconnect_on_suspend, int, 0644); + +/* + * Copies the multicast address list from device to driver. + * + * This function does not validate the destination memory for + * size, and the calling function must ensure enough memory is + * available. + */ +int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist, + struct net_device *dev) +{ + int i = 0; + struct netdev_hw_addr *ha; + + netdev_for_each_mc_addr(ha, dev) + memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN); + + return i; +} + +/* + * Wait queue completion handler. + * + * This function waits on a cmd wait queue. It also cancels the pending + * request after waking up, in case of errors. + */ +int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter, + struct cmd_ctrl_node *cmd_queued) +{ + int status; + + /* Wait for completion */ + status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait, + *(cmd_queued->condition), + (12 * HZ)); + if (status <= 0) { + dev_err(adapter->dev, "cmd_wait_q terminated: %d\n", status); + mwifiex_cancel_all_pending_cmd(adapter); + return status; + } + + status = adapter->cmd_wait_q.status; + adapter->cmd_wait_q.status = 0; + + return status; +} + +/* + * This function prepares the correct firmware command and + * issues it to set the multicast list. + * + * This function can be used to enable promiscuous mode, or enable all + * multicast packets, or to enable selective multicast. + */ +int mwifiex_request_set_multicast_list(struct mwifiex_private *priv, + struct mwifiex_multicast_list *mcast_list) +{ + int ret = 0; + u16 old_pkt_filter; + + old_pkt_filter = priv->curr_pkt_filter; + + if (mcast_list->mode == MWIFIEX_PROMISC_MODE) { + dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n"); + priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; + priv->curr_pkt_filter &= + ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + } else { + /* Multicast */ + priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE; + if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) { + dev_dbg(priv->adapter->dev, + "info: Enabling All Multicast!\n"); + priv->curr_pkt_filter |= + HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + } else { + priv->curr_pkt_filter &= + ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE; + dev_dbg(priv->adapter->dev, + "info: Set multicast list=%d\n", + mcast_list->num_multicast_addr); + /* Send multicast addresses to firmware */ + ret = mwifiex_send_cmd(priv, + HostCmd_CMD_MAC_MULTICAST_ADR, + HostCmd_ACT_GEN_SET, 0, + mcast_list, false); + } + } + dev_dbg(priv->adapter->dev, + "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n", + old_pkt_filter, priv->curr_pkt_filter); + if (old_pkt_filter != priv->curr_pkt_filter) { + ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, + HostCmd_ACT_GEN_SET, + 0, &priv->curr_pkt_filter, false); + } + + return ret; +} + +/* + * This function fills bss descriptor structure using provided + * information. + * beacon_ie buffer is allocated in this function. It is caller's + * responsibility to free the memory. + */ +int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv, + struct cfg80211_bss *bss, + struct mwifiex_bssdescriptor *bss_desc) +{ + u8 *beacon_ie; + size_t beacon_ie_len; + struct mwifiex_bss_priv *bss_priv = (void *)bss->priv; + const struct cfg80211_bss_ies *ies; + + rcu_read_lock(); + ies = rcu_dereference(bss->ies); + beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC); + beacon_ie_len = ies->len; + bss_desc->timestamp = ies->tsf; + rcu_read_unlock(); + + if (!beacon_ie) { + dev_err(priv->adapter->dev, " failed to alloc beacon_ie\n"); + return -ENOMEM; + } + + memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN); + bss_desc->rssi = bss->signal; + /* The caller of this function will free beacon_ie */ + bss_desc->beacon_buf = beacon_ie; + bss_desc->beacon_buf_size = beacon_ie_len; + bss_desc->beacon_period = bss->beacon_interval; + bss_desc->cap_info_bitmap = bss->capability; + bss_desc->bss_band = bss_priv->band; + bss_desc->fw_tsf = bss_priv->fw_tsf; + if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) { + dev_dbg(priv->adapter->dev, "info: InterpretIE: AP WEP enabled\n"); + bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; + } else { + bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; + } + if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS) + bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; + else + bss_desc->bss_mode = NL80211_IFTYPE_STATION; + + /* Disable 11ac by default. Enable it only where there + * exist VHT_CAP IE in AP beacon + */ + bss_desc->disable_11ac = true; + + if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT) + bss_desc->sensed_11h = true; + + return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc); +} + +void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv) +{ + if (priv->adapter->dt_node) { + char txpwr[] = {"marvell,00_txpwrlimit"}; + + memcpy(&txpwr[8], priv->adapter->country_code, 2); + mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr); + } +} + +static int mwifiex_process_country_ie(struct mwifiex_private *priv, + struct cfg80211_bss *bss) +{ + const u8 *country_ie; + u8 country_ie_len; + struct mwifiex_802_11d_domain_reg *domain_info = + &priv->adapter->domain_reg; + + rcu_read_lock(); + country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY); + if (!country_ie) { + rcu_read_unlock(); + return 0; + } + + country_ie_len = country_ie[1]; + if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) { + rcu_read_unlock(); + return 0; + } + + if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) { + rcu_read_unlock(); + wiphy_dbg(priv->wdev.wiphy, + "11D: skip setting domain info in FW\n"); + return 0; + } + memcpy(priv->adapter->country_code, &country_ie[2], 2); + + domain_info->country_code[0] = country_ie[2]; + domain_info->country_code[1] = country_ie[3]; + domain_info->country_code[2] = ' '; + + country_ie_len -= IEEE80211_COUNTRY_STRING_LEN; + + domain_info->no_of_triplet = + country_ie_len / sizeof(struct ieee80211_country_ie_triplet); + + memcpy((u8 *)domain_info->triplet, + &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len); + + rcu_read_unlock(); + + if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, + HostCmd_ACT_GEN_SET, 0, NULL, false)) { + wiphy_err(priv->adapter->wiphy, + "11D: setting domain info in FW\n"); + return -1; + } + + mwifiex_dnld_txpwr_table(priv); + + return 0; +} + +/* + * In Ad-Hoc mode, the IBSS is created if not found in scan list. + * In both Ad-Hoc and infra mode, an deauthentication is performed + * first. + */ +int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, + struct cfg80211_ssid *req_ssid) +{ + int ret; + struct mwifiex_adapter *adapter = priv->adapter; + struct mwifiex_bssdescriptor *bss_desc = NULL; + + priv->scan_block = false; + + if (bss) { + mwifiex_process_country_ie(priv, bss); + + /* Allocate and fill new bss descriptor */ + bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), + GFP_KERNEL); + if (!bss_desc) + return -ENOMEM; + + ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc); + if (ret) + goto done; + } + + if (priv->bss_mode == NL80211_IFTYPE_STATION || + priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { + u8 config_bands; + + if (!bss_desc) + return -1; + + if (mwifiex_band_to_radio_type(bss_desc->bss_band) == + HostCmd_SCAN_RADIO_TYPE_BG) { + config_bands = BAND_B | BAND_G | BAND_GN; + } else { + config_bands = BAND_A | BAND_AN; + if (adapter->fw_bands & BAND_AAC) + config_bands |= BAND_AAC; + } + + if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) + adapter->config_bands = config_bands; + + ret = mwifiex_check_network_compatibility(priv, bss_desc); + if (ret) + goto done; + + if (mwifiex_11h_get_csa_closed_channel(priv) == + (u8)bss_desc->channel) { + dev_err(adapter->dev, + "Attempt to reconnect on csa closed chan(%d)\n", + bss_desc->channel); + goto done; + } + + dev_dbg(adapter->dev, "info: SSID found in scan list ... " + "associating...\n"); + + mwifiex_stop_net_dev_queue(priv->netdev, adapter); + if (netif_carrier_ok(priv->netdev)) + netif_carrier_off(priv->netdev); + + /* Clear any past association response stored for + * application retrieval */ + priv->assoc_rsp_size = 0; + ret = mwifiex_associate(priv, bss_desc); + + /* If auth type is auto and association fails using open mode, + * try to connect using shared mode */ + if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && + priv->sec_info.is_authtype_auto && + priv->sec_info.wep_enabled) { + priv->sec_info.authentication_mode = + NL80211_AUTHTYPE_SHARED_KEY; + ret = mwifiex_associate(priv, bss_desc); + } + + if (bss) + cfg80211_put_bss(priv->adapter->wiphy, bss); + } else { + /* Adhoc mode */ + /* If the requested SSID matches current SSID, return */ + if (bss_desc && bss_desc->ssid.ssid_len && + (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. + ssid, &bss_desc->ssid))) { + ret = 0; + goto done; + } + + priv->adhoc_is_link_sensed = false; + + ret = mwifiex_check_network_compatibility(priv, bss_desc); + + mwifiex_stop_net_dev_queue(priv->netdev, adapter); + if (netif_carrier_ok(priv->netdev)) + netif_carrier_off(priv->netdev); + + if (!ret) { + dev_dbg(adapter->dev, "info: network found in scan" + " list. Joining...\n"); + ret = mwifiex_adhoc_join(priv, bss_desc); + if (bss) + cfg80211_put_bss(priv->adapter->wiphy, bss); + } else { + dev_dbg(adapter->dev, "info: Network not found in " + "the list, creating adhoc with ssid = %s\n", + req_ssid->ssid); + ret = mwifiex_adhoc_start(priv, req_ssid); + } + } + +done: + /* beacon_ie buffer was allocated in function + * mwifiex_fill_new_bss_desc(). Free it now. + */ + if (bss_desc) + kfree(bss_desc->beacon_buf); + kfree(bss_desc); + return ret; +} + +/* + * IOCTL request handler to set host sleep configuration. + * + * This function prepares the correct firmware command and + * issues it. + */ +int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action, + int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg) + +{ + struct mwifiex_adapter *adapter = priv->adapter; + int status = 0; + u32 prev_cond = 0; + + if (!hs_cfg) + return -ENOMEM; + + switch (action) { + case HostCmd_ACT_GEN_SET: + if (adapter->pps_uapsd_mode) { + dev_dbg(adapter->dev, "info: Host Sleep IOCTL" + " is blocked in UAPSD/PPS mode\n"); + status = -1; + break; + } + if (hs_cfg->is_invoke_hostcmd) { + if (hs_cfg->conditions == HS_CFG_CANCEL) { + if (!adapter->is_hs_configured) + /* Already cancelled */ + break; + /* Save previous condition */ + prev_cond = le32_to_cpu(adapter->hs_cfg + .conditions); + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + } else if (hs_cfg->conditions) { + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; + if (hs_cfg->gap) + adapter->hs_cfg.gap = (u8)hs_cfg->gap; + } else if (adapter->hs_cfg.conditions == + cpu_to_le32(HS_CFG_CANCEL)) { + /* Return failure if no parameters for HS + enable */ + status = -1; + break; + } + + status = mwifiex_send_cmd(priv, + HostCmd_CMD_802_11_HS_CFG_ENH, + HostCmd_ACT_GEN_SET, 0, + &adapter->hs_cfg, + cmd_type == MWIFIEX_SYNC_CMD); + + if (hs_cfg->conditions == HS_CFG_CANCEL) + /* Restore previous condition */ + adapter->hs_cfg.conditions = + cpu_to_le32(prev_cond); + } else { + adapter->hs_cfg.conditions = + cpu_to_le32(hs_cfg->conditions); + adapter->hs_cfg.gpio = (u8)hs_cfg->gpio; + adapter->hs_cfg.gap = (u8)hs_cfg->gap; + } + break; + case HostCmd_ACT_GEN_GET: + hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions); + hs_cfg->gpio = adapter->hs_cfg.gpio; + hs_cfg->gap = adapter->hs_cfg.gap; + break; + default: + status = -1; + break; + } + + return status; +} + +/* + * Sends IOCTL request to cancel the existing Host Sleep configuration. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type) +{ + struct mwifiex_ds_hs_cfg hscfg; + + hscfg.conditions = HS_CFG_CANCEL; + hscfg.is_invoke_hostcmd = true; + + return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET, + cmd_type, &hscfg); +} +EXPORT_SYMBOL_GPL(mwifiex_cancel_hs); + +/* + * Sends IOCTL request to cancel the existing Host Sleep configuration. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_enable_hs(struct mwifiex_adapter *adapter) +{ + struct mwifiex_ds_hs_cfg hscfg; + struct mwifiex_private *priv; + int i; + + if (disconnect_on_suspend) { + for (i = 0; i < adapter->priv_num; i++) { + priv = adapter->priv[i]; + if (priv) + mwifiex_deauthenticate(priv, NULL); + } + } + + if (adapter->hs_activated) { + dev_dbg(adapter->dev, "cmd: HS Already activated\n"); + return true; + } + + adapter->hs_activate_wait_q_woken = false; + + memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg)); + hscfg.is_invoke_hostcmd = true; + + adapter->hs_enabling = true; + mwifiex_cancel_all_pending_cmd(adapter); + + if (mwifiex_set_hs_params(mwifiex_get_priv(adapter, + MWIFIEX_BSS_ROLE_STA), + HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD, + &hscfg)) { + dev_err(adapter->dev, "IOCTL request HS enable failed\n"); + return false; + } + + if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q, + adapter->hs_activate_wait_q_woken, + (10 * HZ)) <= 0) { + dev_err(adapter->dev, "hs_activate_wait_q terminated\n"); + return false; + } + + return true; +} +EXPORT_SYMBOL_GPL(mwifiex_enable_hs); + +/* + * IOCTL request handler to get BSS information. + * + * This function collates the information from different driver structures + * to send to the user. + */ +int mwifiex_get_bss_info(struct mwifiex_private *priv, + struct mwifiex_bss_info *info) +{ + struct mwifiex_adapter *adapter = priv->adapter; + struct mwifiex_bssdescriptor *bss_desc; + + if (!info) + return -1; + + bss_desc = &priv->curr_bss_params.bss_descriptor; + + info->bss_mode = priv->bss_mode; + + memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid)); + + memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN); + + info->bss_chan = bss_desc->channel; + + memcpy(info->country_code, adapter->country_code, + IEEE80211_COUNTRY_STRING_LEN); + + info->media_connected = priv->media_connected; + + info->max_power_level = priv->max_tx_power_level; + info->min_power_level = priv->min_tx_power_level; + + info->adhoc_state = priv->adhoc_state; + + info->bcn_nf_last = priv->bcn_nf_last; + + if (priv->sec_info.wep_enabled) + info->wep_status = true; + else + info->wep_status = false; + + info->is_hs_configured = adapter->is_hs_configured; + info->is_deep_sleep = adapter->is_deep_sleep; + + return 0; +} + +/* + * The function disables auto deep sleep mode. + */ +int mwifiex_disable_auto_ds(struct mwifiex_private *priv) +{ + struct mwifiex_ds_auto_ds auto_ds; + + auto_ds.auto_ds = DEEP_SLEEP_OFF; + + return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, + DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true); +} +EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds); + +/* + * Sends IOCTL request to get the data rate. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate) +{ + int ret; + + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY, + HostCmd_ACT_GEN_GET, 0, NULL, true); + + if (!ret) { + if (priv->is_data_rate_auto) + *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate, + priv->tx_htinfo); + else + *rate = priv->data_rate; + } + + return ret; +} + +/* + * IOCTL request handler to set tx power configuration. + * + * This function prepares the correct firmware command and + * issues it. + * + * For non-auto power mode, all the following power groups are set - + * - Modulation class HR/DSSS + * - Modulation class OFDM + * - Modulation class HTBW20 + * - Modulation class HTBW40 + */ +int mwifiex_set_tx_power(struct mwifiex_private *priv, + struct mwifiex_power_cfg *power_cfg) +{ + int ret; + struct host_cmd_ds_txpwr_cfg *txp_cfg; + struct mwifiex_types_power_group *pg_tlv; + struct mwifiex_power_group *pg; + u8 *buf; + u16 dbm = 0; + + if (!power_cfg->is_power_auto) { + dbm = (u16) power_cfg->power_level; + if ((dbm < priv->min_tx_power_level) || + (dbm > priv->max_tx_power_level)) { + dev_err(priv->adapter->dev, "txpower value %d dBm" + " is out of range (%d dBm-%d dBm)\n", + dbm, priv->min_tx_power_level, + priv->max_tx_power_level); + return -1; + } + } + buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf; + txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET); + if (!power_cfg->is_power_auto) { + txp_cfg->mode = cpu_to_le32(1); + pg_tlv = (struct mwifiex_types_power_group *) + (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); + pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP); + pg_tlv->length = + cpu_to_le16(4 * sizeof(struct mwifiex_power_group)); + pg = (struct mwifiex_power_group *) + (buf + sizeof(struct host_cmd_ds_txpwr_cfg) + + sizeof(struct mwifiex_types_power_group)); + /* Power group for modulation class HR/DSSS */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x03; + pg->modulation_class = MOD_CLASS_HR_DSSS; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg++; + /* Power group for modulation class OFDM */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x07; + pg->modulation_class = MOD_CLASS_OFDM; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg++; + /* Power group for modulation class HTBW20 */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x20; + pg->modulation_class = MOD_CLASS_HT; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg->ht_bandwidth = HT_BW_20; + pg++; + /* Power group for modulation class HTBW40 */ + pg->first_rate_code = 0x00; + pg->last_rate_code = 0x20; + pg->modulation_class = MOD_CLASS_HT; + pg->power_step = 0; + pg->power_min = (s8) dbm; + pg->power_max = (s8) dbm; + pg->ht_bandwidth = HT_BW_40; + } + ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG, + HostCmd_ACT_GEN_SET, 0, buf, true); + + kfree(buf); + return ret; +} + +/* + * IOCTL request handler to get power save mode. + * + * This function prepares the correct firmware command and + * issues it. + */ +int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode) +{ + int ret; + struct mwifiex_adapter *adapter = priv->adapter; + u16 sub_cmd; + + if (*ps_mode) + adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; + else + adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; + sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS; + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, + sub_cmd, BITMAP_STA_PS, NULL, true); + if ((!ret) && (sub_cmd == DIS_AUTO_PS)) + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH, + GET_PS, 0, NULL, false); + + return ret; +} + +/* + * IOCTL request handler to set/reset WPA IE. + * + * The supplied WPA IE is treated as a opaque buffer. Only the first field + * is checked to determine WPA version. If buffer length is zero, the existing + * WPA IE is reset. + */ +static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv, + u8 *ie_data_ptr, u16 ie_len) +{ + if (ie_len) { + if (ie_len > sizeof(priv->wpa_ie)) { + dev_err(priv->adapter->dev, + "failed to copy WPA IE, too big\n"); + return -1; + } + memcpy(priv->wpa_ie, ie_data_ptr, ie_len); + priv->wpa_ie_len = (u8) ie_len; + dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n", + priv->wpa_ie_len, priv->wpa_ie[0]); + + if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) { + priv->sec_info.wpa_enabled = true; + } else if (priv->wpa_ie[0] == WLAN_EID_RSN) { + priv->sec_info.wpa2_enabled = true; + } else { + priv->sec_info.wpa_enabled = false; + priv->sec_info.wpa2_enabled = false; + } + } else { + memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie)); + priv->wpa_ie_len = 0; + dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n", + priv->wpa_ie_len, priv->wpa_ie[0]); + priv->sec_info.wpa_enabled = false; + priv->sec_info.wpa2_enabled = false; + } + + return 0; +} + +/* + * IOCTL request handler to set/reset WAPI IE. + * + * The supplied WAPI IE is treated as a opaque buffer. Only the first field + * is checked to internally enable WAPI. If buffer length is zero, the existing + * WAPI IE is reset. + */ +static int mwifiex_set_wapi_ie(struct mwifiex_private *priv, + u8 *ie_data_ptr, u16 ie_len) +{ + if (ie_len) { + if (ie_len > sizeof(priv->wapi_ie)) { + dev_dbg(priv->adapter->dev, + "info: failed to copy WAPI IE, too big\n"); + return -1; + } + memcpy(priv->wapi_ie, ie_data_ptr, ie_len); + priv->wapi_ie_len = ie_len; + dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n", + priv->wapi_ie_len, priv->wapi_ie[0]); + + if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY) + priv->sec_info.wapi_enabled = true; + } else { + memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie)); + priv->wapi_ie_len = ie_len; + dev_dbg(priv->adapter->dev, + "info: Reset wapi_ie_len=%d IE=%#x\n", + priv->wapi_ie_len, priv->wapi_ie[0]); + priv->sec_info.wapi_enabled = false; + } + return 0; +} + +/* + * IOCTL request handler to set/reset WPS IE. + * + * The supplied WPS IE is treated as a opaque buffer. Only the first field + * is checked to internally enable WPS. If buffer length is zero, the existing + * WPS IE is reset. + */ +static int mwifiex_set_wps_ie(struct mwifiex_private *priv, + u8 *ie_data_ptr, u16 ie_len) +{ + if (ie_len) { + if (ie_len > MWIFIEX_MAX_VSIE_LEN) { + dev_dbg(priv->adapter->dev, + "info: failed to copy WPS IE, too big\n"); + return -1; + } + + priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL); + if (!priv->wps_ie) + return -ENOMEM; + + memcpy(priv->wps_ie, ie_data_ptr, ie_len); + priv->wps_ie_len = ie_len; + dev_dbg(priv->adapter->dev, "cmd: Set wps_ie_len=%d IE=%#x\n", + priv->wps_ie_len, priv->wps_ie[0]); + } else { + kfree(priv->wps_ie); + priv->wps_ie_len = ie_len; + dev_dbg(priv->adapter->dev, + "info: Reset wps_ie_len=%d\n", priv->wps_ie_len); + } + return 0; +} + +/* + * IOCTL request handler to set WAPI key. + * + * This function prepares the correct firmware command and + * issues it. + */ +static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + + return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED, + encrypt_key, true); +} + +/* + * IOCTL request handler to set WEP network key. + * + * This function prepares the correct firmware command and + * issues it, after validation checks. + */ +static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + struct mwifiex_adapter *adapter = priv->adapter; + int ret; + struct mwifiex_wep_key *wep_key; + int index; + + if (priv->wep_key_curr_index >= NUM_WEP_KEYS) + priv->wep_key_curr_index = 0; + wep_key = &priv->wep_key[priv->wep_key_curr_index]; + index = encrypt_key->key_index; + if (encrypt_key->key_disable) { + priv->sec_info.wep_enabled = 0; + } else if (!encrypt_key->key_len) { + /* Copy the required key as the current key */ + wep_key = &priv->wep_key[index]; + if (!wep_key->key_length) { + dev_err(adapter->dev, + "key not set, so cannot enable it\n"); + return -1; + } + + if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) { + memcpy(encrypt_key->key_material, + wep_key->key_material, wep_key->key_length); + encrypt_key->key_len = wep_key->key_length; + } + + priv->wep_key_curr_index = (u16) index; + priv->sec_info.wep_enabled = 1; + } else { + wep_key = &priv->wep_key[index]; + memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); + /* Copy the key in the driver */ + memcpy(wep_key->key_material, + encrypt_key->key_material, + encrypt_key->key_len); + wep_key->key_index = index; + wep_key->key_length = encrypt_key->key_len; + priv->sec_info.wep_enabled = 1; + } + if (wep_key->key_length) { + void *enc_key; + + if (encrypt_key->key_disable) { + memset(&priv->wep_key[index], 0, + sizeof(struct mwifiex_wep_key)); + if (wep_key->key_length) + goto done; + } + + if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) + enc_key = encrypt_key; + else + enc_key = NULL; + + /* Send request to firmware */ + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, 0, enc_key, false); + if (ret) + return ret; + } + +done: + if (priv->sec_info.wep_enabled) + priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; + else + priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; + + ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL, + HostCmd_ACT_GEN_SET, 0, + &priv->curr_pkt_filter, true); + + return ret; +} + +/* + * IOCTL request handler to set WPA key. + * + * This function prepares the correct firmware command and + * issues it, after validation checks. + * + * Current driver only supports key length of up to 32 bytes. + * + * This function can also be used to disable a currently set key. + */ +static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int ret; + u8 remove_key = false; + struct host_cmd_ds_802_11_key_material *ibss_key; + + /* Current driver only supports key length of up to 32 bytes */ + if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) { + dev_err(priv->adapter->dev, "key length too long\n"); + return -1; + } + + if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { + /* + * IBSS/WPA-None uses only one key (Group) for both receiving + * and sending unicast and multicast packets. + */ + /* Send the key as PTK to firmware */ + encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, + KEY_INFO_ENABLED, encrypt_key, false); + if (ret) + return ret; + + ibss_key = &priv->aes_key; + memset(ibss_key, 0, + sizeof(struct host_cmd_ds_802_11_key_material)); + /* Copy the key in the driver */ + memcpy(ibss_key->key_param_set.key, encrypt_key->key_material, + encrypt_key->key_len); + memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len, + sizeof(ibss_key->key_param_set.key_len)); + ibss_key->key_param_set.key_type_id + = cpu_to_le16(KEY_TYPE_ID_TKIP); + ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED); + + /* Send the key as GTK to firmware */ + encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST; + } + + if (!encrypt_key->key_index) + encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST; + + if (remove_key) + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, + !KEY_INFO_ENABLED, encrypt_key, true); + else + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, + HostCmd_ACT_GEN_SET, + KEY_INFO_ENABLED, encrypt_key, true); + + return ret; +} + +/* + * IOCTL request handler to set/get network keys. + * + * This is a generic key handling function which supports WEP, WPA + * and WAPI. + */ +static int +mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv, + struct mwifiex_ds_encrypt_key *encrypt_key) +{ + int status; + + if (encrypt_key->is_wapi_key) + status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key); + else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104) + status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key); + else + status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key); + return status; +} + +/* + * This function returns the driver version. + */ +int +mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version, + int max_len) +{ + union { + __le32 l; + u8 c[4]; + } ver; + char fw_ver[32]; + + ver.l = cpu_to_le32(adapter->fw_release_number); + sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]); + + snprintf(version, max_len, driver_version, fw_ver); + + dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version); + + return 0; +} + +/* + * Sends IOCTL request to set encoding parameters. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp, + const u8 *key, int key_len, u8 key_index, + const u8 *mac_addr, int disable) +{ + struct mwifiex_ds_encrypt_key encrypt_key; + + memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); + encrypt_key.key_len = key_len; + encrypt_key.key_index = key_index; + + if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC) + encrypt_key.is_igtk_key = true; + + if (!disable) { + if (key_len) + memcpy(encrypt_key.key_material, key, key_len); + else + encrypt_key.is_current_wep_key = true; + + if (mac_addr) + memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); + if (kp && kp->seq && kp->seq_len) { + memcpy(encrypt_key.pn, kp->seq, kp->seq_len); + encrypt_key.pn_len = kp->seq_len; + encrypt_key.is_rx_seq_valid = true; + } + } else { + if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) + return 0; + encrypt_key.key_disable = true; + if (mac_addr) + memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN); + } + + return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key); +} + +/* + * Sends IOCTL request to get extended version. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_get_ver_ext(struct mwifiex_private *priv) +{ + struct mwifiex_ver_ext ver_ext; + + memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext)); + if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT, + HostCmd_ACT_GEN_GET, 0, &ver_ext, true)) + return -1; + + return 0; +} + +int +mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action, + struct ieee80211_channel *chan, + unsigned int duration) +{ + struct host_cmd_ds_remain_on_chan roc_cfg; + u8 sc; + + memset(&roc_cfg, 0, sizeof(roc_cfg)); + roc_cfg.action = cpu_to_le16(action); + if (action == HostCmd_ACT_GEN_SET) { + roc_cfg.band_cfg = chan->band; + sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT); + roc_cfg.band_cfg |= (sc << 2); + + roc_cfg.channel = + ieee80211_frequency_to_channel(chan->center_freq); + roc_cfg.duration = cpu_to_le32(duration); + } + if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN, + action, 0, &roc_cfg, true)) { + dev_err(priv->adapter->dev, "failed to remain on channel\n"); + return -1; + } + + return roc_cfg.status; +} + +/* + * Sends IOCTL request to get statistics information. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_get_stats_info(struct mwifiex_private *priv, + struct mwifiex_ds_get_stats *log) +{ + return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG, + HostCmd_ACT_GEN_GET, 0, log, true); +} + +/* + * IOCTL request handler to read/write register. + * + * This function prepares the correct firmware command and + * issues it. + * + * Access to the following registers are supported - + * - MAC + * - BBP + * - RF + * - PMIC + * - CAU + */ +static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv, + struct mwifiex_ds_reg_rw *reg_rw, + u16 action) +{ + u16 cmd_no; + + switch (le32_to_cpu(reg_rw->type)) { + case MWIFIEX_REG_MAC: + cmd_no = HostCmd_CMD_MAC_REG_ACCESS; + break; + case MWIFIEX_REG_BBP: + cmd_no = HostCmd_CMD_BBP_REG_ACCESS; + break; + case MWIFIEX_REG_RF: + cmd_no = HostCmd_CMD_RF_REG_ACCESS; + break; + case MWIFIEX_REG_PMIC: + cmd_no = HostCmd_CMD_PMIC_REG_ACCESS; + break; + case MWIFIEX_REG_CAU: + cmd_no = HostCmd_CMD_CAU_REG_ACCESS; + break; + default: + return -1; + } + + return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true); +} + +/* + * Sends IOCTL request to write to a register. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type, + u32 reg_offset, u32 reg_value) +{ + struct mwifiex_ds_reg_rw reg_rw; + + reg_rw.type = cpu_to_le32(reg_type); + reg_rw.offset = cpu_to_le32(reg_offset); + reg_rw.value = cpu_to_le32(reg_value); + + return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET); +} + +/* + * Sends IOCTL request to read from a register. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type, + u32 reg_offset, u32 *value) +{ + int ret; + struct mwifiex_ds_reg_rw reg_rw; + + reg_rw.type = cpu_to_le32(reg_type); + reg_rw.offset = cpu_to_le32(reg_offset); + ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET); + + if (ret) + goto done; + + *value = le32_to_cpu(reg_rw.value); + +done: + return ret; +} + +/* + * Sends IOCTL request to read from EEPROM. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes, + u8 *value) +{ + int ret; + struct mwifiex_ds_read_eeprom rd_eeprom; + + rd_eeprom.offset = cpu_to_le16((u16) offset); + rd_eeprom.byte_count = cpu_to_le16((u16) bytes); + + /* Send request to firmware */ + ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS, + HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true); + + if (!ret) + memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA); + return ret; +} + +/* + * This function sets a generic IE. In addition to generic IE, it can + * also handle WPA, WPA2 and WAPI IEs. + */ +static int +mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr, + u16 ie_len) +{ + int ret = 0; + struct ieee_types_vendor_header *pvendor_ie; + const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 }; + const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 }; + + /* If the passed length is zero, reset the buffer */ + if (!ie_len) { + priv->gen_ie_buf_len = 0; + priv->wps.session_enable = false; + + return 0; + } else if (!ie_data_ptr) { + return -1; + } + pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; + /* Test to see if it is a WPA IE, if not, then it is a gen IE */ + if (((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) && + (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) || + (pvendor_ie->element_id == WLAN_EID_RSN)) { + + /* IE is a WPA/WPA2 IE so call set_wpa function */ + ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len); + priv->wps.session_enable = false; + + return ret; + } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) { + /* IE is a WAPI IE so call set_wapi function */ + ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len); + + return ret; + } + /* + * Verify that the passed length is not larger than the + * available space remaining in the buffer + */ + if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) { + + /* Test to see if it is a WPS IE, if so, enable + * wps session flag + */ + pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr; + if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) && + (!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) { + priv->wps.session_enable = true; + dev_dbg(priv->adapter->dev, + "info: WPS Session Enabled.\n"); + ret = mwifiex_set_wps_ie(priv, ie_data_ptr, ie_len); + } + + /* Append the passed data to the end of the + genIeBuffer */ + memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr, + ie_len); + /* Increment the stored buffer length by the + size passed */ + priv->gen_ie_buf_len += ie_len; + } else { + /* Passed data does not fit in the remaining + buffer space */ + ret = -1; + } + + /* Return 0, or -1 for error case */ + return ret; +} + +/* + * IOCTL request handler to set/get generic IE. + * + * In addition to various generic IEs, this function can also be + * used to set the ARP filter. + */ +static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv, + struct mwifiex_ds_misc_gen_ie *gen_ie, + u16 action) +{ + struct mwifiex_adapter *adapter = priv->adapter; + + switch (gen_ie->type) { + case MWIFIEX_IE_TYPE_GEN_IE: + if (action == HostCmd_ACT_GEN_GET) { + gen_ie->len = priv->wpa_ie_len; + memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len); + } else { + mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data, + (u16) gen_ie->len); + } + break; + case MWIFIEX_IE_TYPE_ARP_FILTER: + memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter)); + if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) { + adapter->arp_filter_size = 0; + dev_err(adapter->dev, "invalid ARP filter size\n"); + return -1; + } else { + memcpy(adapter->arp_filter, gen_ie->ie_data, + gen_ie->len); + adapter->arp_filter_size = gen_ie->len; + } + break; + default: + dev_err(adapter->dev, "invalid IE type\n"); + return -1; + } + return 0; +} + +/* + * Sends IOCTL request to set a generic IE. + * + * This function allocates the IOCTL request buffer, fills it + * with requisite parameters and calls the IOCTL handler. + */ +int +mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len) +{ + struct mwifiex_ds_misc_gen_ie gen_ie; + + if (ie_len > IEEE_MAX_IE_SIZE) + return -EFAULT; + + gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE; + gen_ie.len = ie_len; + memcpy(gen_ie.ie_data, ie, ie_len); + if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET)) + return -EFAULT; + + return 0; +} |