diff options
Diffstat (limited to 'drivers/net/wireless/libertas/assoc.c')
-rw-r--r-- | drivers/net/wireless/libertas/assoc.c | 445 |
1 files changed, 414 insertions, 31 deletions
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c index dd87326..7510673 100644 --- a/drivers/net/wireless/libertas/assoc.c +++ b/drivers/net/wireless/libertas/assoc.c @@ -23,6 +23,13 @@ static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) = */ #define CAPINFO_MASK (~(0xda00)) +/** + * 802.11b/g supported bitrates (in 500Kb/s units) + */ +u8 lbs_bg_rates[MAX_RATES] = + { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c, +0x00, 0x00 }; + /** * @brief This function finds common rates between rates and card rates. @@ -147,6 +154,397 @@ static int lbs_set_authentication(struct lbs_private *priv, u8 bssid[6], u8 auth } +int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action, + struct assoc_request *assoc) +{ + struct cmd_ds_802_11_set_wep cmd; + int ret = 0; + + lbs_deb_enter(LBS_DEB_CMD); + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + + cmd.action = cpu_to_le16(cmd_action); + + if (cmd_action == CMD_ACT_ADD) { + int i; + + /* default tx key index */ + cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx & + CMD_WEP_KEY_INDEX_MASK); + + /* Copy key types and material to host command structure */ + for (i = 0; i < 4; i++) { + struct enc_key *pkey = &assoc->wep_keys[i]; + + switch (pkey->len) { + case KEY_LEN_WEP_40: + cmd.keytype[i] = CMD_TYPE_WEP_40_BIT; + memmove(cmd.keymaterial[i], pkey->key, pkey->len); + lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i); + break; + case KEY_LEN_WEP_104: + cmd.keytype[i] = CMD_TYPE_WEP_104_BIT; + memmove(cmd.keymaterial[i], pkey->key, pkey->len); + lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i); + break; + case 0: + break; + default: + lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n", + i, pkey->len); + ret = -1; + goto done; + break; + } + } + } else if (cmd_action == CMD_ACT_REMOVE) { + /* ACT_REMOVE clears _all_ WEP keys */ + + /* default tx key index */ + cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx & + CMD_WEP_KEY_INDEX_MASK); + lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx); + } + + ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd); +done: + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + +int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action, + uint16_t *enable) +{ + struct cmd_ds_802_11_enable_rsn cmd; + int ret; + + lbs_deb_enter(LBS_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(cmd_action); + + if (cmd_action == CMD_ACT_GET) + cmd.enable = 0; + else { + if (*enable) + cmd.enable = cpu_to_le16(CMD_ENABLE_RSN); + else + cmd.enable = cpu_to_le16(CMD_DISABLE_RSN); + lbs_deb_cmd("ENABLE_RSN: %d\n", *enable); + } + + ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd); + if (!ret && cmd_action == CMD_ACT_GET) + *enable = le16_to_cpu(cmd.enable); + + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + +static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam, + struct enc_key *key) +{ + lbs_deb_enter(LBS_DEB_CMD); + + if (key->flags & KEY_INFO_WPA_ENABLED) + keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED); + if (key->flags & KEY_INFO_WPA_UNICAST) + keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST); + if (key->flags & KEY_INFO_WPA_MCAST) + keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST); + + keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL); + keyparam->keytypeid = cpu_to_le16(key->type); + keyparam->keylen = cpu_to_le16(key->len); + memcpy(keyparam->key, key->key, key->len); + + /* Length field doesn't include the {type,length} header */ + keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4); + lbs_deb_leave(LBS_DEB_CMD); +} + +int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action, + struct assoc_request *assoc) +{ + struct cmd_ds_802_11_key_material cmd; + int ret = 0; + int index = 0; + + lbs_deb_enter(LBS_DEB_CMD); + + cmd.action = cpu_to_le16(cmd_action); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + + if (cmd_action == CMD_ACT_GET) { + cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_header) + 2); + } else { + memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet)); + + if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) { + set_one_wpa_key(&cmd.keyParamSet[index], + &assoc->wpa_unicast_key); + index++; + } + + if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) { + set_one_wpa_key(&cmd.keyParamSet[index], + &assoc->wpa_mcast_key); + index++; + } + + /* The common header and as many keys as we included */ + cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd), + keyParamSet[index])); + } + ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd); + /* Copy the returned key to driver private data */ + if (!ret && cmd_action == CMD_ACT_GET) { + void *buf_ptr = cmd.keyParamSet; + void *resp_end = &(&cmd)[1]; + + while (buf_ptr < resp_end) { + struct MrvlIEtype_keyParamSet *keyparam = buf_ptr; + struct enc_key *key; + uint16_t param_set_len = le16_to_cpu(keyparam->length); + uint16_t key_len = le16_to_cpu(keyparam->keylen); + uint16_t key_flags = le16_to_cpu(keyparam->keyinfo); + uint16_t key_type = le16_to_cpu(keyparam->keytypeid); + void *end; + + end = (void *)keyparam + sizeof(keyparam->type) + + sizeof(keyparam->length) + param_set_len; + + /* Make sure we don't access past the end of the IEs */ + if (end > resp_end) + break; + + if (key_flags & KEY_INFO_WPA_UNICAST) + key = &priv->wpa_unicast_key; + else if (key_flags & KEY_INFO_WPA_MCAST) + key = &priv->wpa_mcast_key; + else + break; + + /* Copy returned key into driver */ + memset(key, 0, sizeof(struct enc_key)); + if (key_len > sizeof(key->key)) + break; + key->type = key_type; + key->flags = key_flags; + key->len = key_len; + memcpy(key->key, keyparam->key, key->len); + + buf_ptr = end + 1; + } + } + + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + +static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok) +{ +/* Bit Rate +* 15:13 Reserved +* 12 54 Mbps +* 11 48 Mbps +* 10 36 Mbps +* 9 24 Mbps +* 8 18 Mbps +* 7 12 Mbps +* 6 9 Mbps +* 5 6 Mbps +* 4 Reserved +* 3 11 Mbps +* 2 5.5 Mbps +* 1 2 Mbps +* 0 1 Mbps +**/ + + uint16_t ratemask; + int i = lbs_data_rate_to_fw_index(rate); + if (lower_rates_ok) + ratemask = (0x1fef >> (12 - i)); + else + ratemask = (1 << i); + return cpu_to_le16(ratemask); +} + +int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv, + uint16_t cmd_action) +{ + struct cmd_ds_802_11_rate_adapt_rateset cmd; + int ret; + + lbs_deb_enter(LBS_DEB_CMD); + + if (!priv->cur_rate && !priv->enablehwauto) + return -EINVAL; + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + + cmd.action = cpu_to_le16(cmd_action); + cmd.enablehwauto = cpu_to_le16(priv->enablehwauto); + cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto); + ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd); + if (!ret && cmd_action == CMD_ACT_GET) { + priv->ratebitmap = le16_to_cpu(cmd.bitmap); + priv->enablehwauto = le16_to_cpu(cmd.enablehwauto); + } + + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + +/** + * @brief Set the data rate + * + * @param priv A pointer to struct lbs_private structure + * @param rate The desired data rate, or 0 to clear a locked rate + * + * @return 0 on success, error on failure + */ +int lbs_set_data_rate(struct lbs_private *priv, u8 rate) +{ + struct cmd_ds_802_11_data_rate cmd; + int ret = 0; + + lbs_deb_enter(LBS_DEB_CMD); + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + + if (rate > 0) { + cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE); + cmd.rates[0] = lbs_data_rate_to_fw_index(rate); + if (cmd.rates[0] == 0) { + lbs_deb_cmd("DATA_RATE: invalid requested rate of" + " 0x%02X\n", rate); + ret = 0; + goto out; + } + lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]); + } else { + cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO); + lbs_deb_cmd("DATA_RATE: setting auto\n"); + } + + ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd); + if (ret) + goto out; + + lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof(cmd)); + + /* FIXME: get actual rates FW can do if this command actually returns + * all data rates supported. + */ + priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]); + lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate); + +out: + lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret); + return ret; +} + + +int lbs_cmd_802_11_rssi(struct lbs_private *priv, + struct cmd_ds_command *cmd) +{ + + lbs_deb_enter(LBS_DEB_CMD); + cmd->command = cpu_to_le16(CMD_802_11_RSSI); + cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + + sizeof(struct cmd_header)); + cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR); + + /* reset Beacon SNR/NF/RSSI values */ + priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0; + priv->SNR[TYPE_BEACON][TYPE_AVG] = 0; + priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0; + priv->NF[TYPE_BEACON][TYPE_AVG] = 0; + priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0; + priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0; + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +int lbs_ret_802_11_rssi(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp; + + lbs_deb_enter(LBS_DEB_CMD); + + /* store the non average value */ + priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->SNR); + priv->NF[TYPE_BEACON][TYPE_NOAVG] = + get_unaligned_le16(&rssirsp->noisefloor); + + priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgSNR); + priv->NF[TYPE_BEACON][TYPE_AVG] = + get_unaligned_le16(&rssirsp->avgnoisefloor); + + priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = + CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG], + priv->NF[TYPE_BEACON][TYPE_NOAVG]); + + priv->RSSI[TYPE_BEACON][TYPE_AVG] = + CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE, + priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE); + + lbs_deb_cmd("RSSI: beacon %d, avg %d\n", + priv->RSSI[TYPE_BEACON][TYPE_NOAVG], + priv->RSSI[TYPE_BEACON][TYPE_AVG]); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + + +int lbs_cmd_bcn_ctrl(struct lbs_private *priv, + struct cmd_ds_command *cmd, + u16 cmd_action) +{ + struct cmd_ds_802_11_beacon_control + *bcn_ctrl = &cmd->params.bcn_ctrl; + + lbs_deb_enter(LBS_DEB_CMD); + cmd->size = + cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control) + + sizeof(struct cmd_header)); + cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL); + + bcn_ctrl->action = cpu_to_le16(cmd_action); + bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable); + bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +int lbs_ret_802_11_bcn_ctrl(struct lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11_beacon_control *bcn_ctrl = + &resp->params.bcn_ctrl; + + lbs_deb_enter(LBS_DEB_CMD); + + if (bcn_ctrl->action == CMD_ACT_GET) { + priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable); + priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period); + } + + lbs_deb_enter(LBS_DEB_CMD); + return 0; +} + + + static int lbs_assoc_post(struct lbs_private *priv, struct cmd_ds_802_11_associate_response *resp) { @@ -226,7 +624,7 @@ static int lbs_assoc_post(struct lbs_private *priv, priv->connect_status = LBS_CONNECTED; /* Update current SSID and BSSID */ - memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); + memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN); priv->curbssparams.ssid_len = bss->ssid_len; memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN); @@ -369,12 +767,7 @@ static int lbs_associate(struct lbs_private *priv, (u16)(pos - (u8 *) &cmd.iebuf)); /* update curbssparams */ - priv->curbssparams.channel = bss->phy.ds.channel; - - if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { - ret = -1; - goto done; - } + priv->channel = bss->phy.ds.channel; ret = lbs_cmd_with_response(priv, command, &cmd); if (ret == 0) { @@ -472,7 +865,7 @@ static int lbs_adhoc_post(struct lbs_private *priv, memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN); /* Set the new SSID to current SSID */ - memcpy(&priv->curbssparams.ssid, &bss->ssid, IW_ESSID_MAX_SIZE); + memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN); priv->curbssparams.ssid_len = bss->ssid_len; netif_carrier_on(priv->dev); @@ -487,7 +880,7 @@ static int lbs_adhoc_post(struct lbs_private *priv, lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %pM, channel %d\n", print_ssid(ssid, bss->ssid, bss->ssid_len), priv->curbssparams.bssid, - priv->curbssparams.channel); + priv->channel); done: lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret); @@ -560,7 +953,7 @@ static int lbs_adhoc_join(struct lbs_private *priv, lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band); priv->adhoccreate = 0; - priv->curbssparams.channel = bss->channel; + priv->channel = bss->channel; /* Build the join command */ memset(&cmd, 0, sizeof(cmd)); @@ -633,11 +1026,6 @@ static int lbs_adhoc_join(struct lbs_private *priv, } } - if (lbs_parse_dnld_countryinfo_11d(priv, bss)) { - ret = -1; - goto out; - } - ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd); if (ret == 0) { ret = lbs_adhoc_post(priv, @@ -737,12 +1125,6 @@ static int lbs_adhoc_start(struct lbs_private *priv, lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n", cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]); - if (lbs_create_dnld_countryinfo_11d(priv)) { - lbs_deb_join("ADHOC_START: dnld_countryinfo_11d failed\n"); - ret = -1; - goto out; - } - lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n", assoc_req->channel, assoc_req->band); @@ -1099,7 +1481,7 @@ static int assoc_helper_essid(struct lbs_private *priv, /* else send START command */ lbs_deb_assoc("SSID not found, creating adhoc network\n"); memcpy(&assoc_req->bss.ssid, &assoc_req->ssid, - IW_ESSID_MAX_SIZE); + IEEE80211_MAX_SSID_LEN); assoc_req->bss.ssid_len = assoc_req->ssid_len; lbs_adhoc_start(priv, assoc_req); } @@ -1185,7 +1567,8 @@ static int assoc_helper_mode(struct lbs_private *priv, } priv->mode = assoc_req->mode; - ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, assoc_req->mode); + ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, + assoc_req->mode == IW_MODE_ADHOC ? 2 : 1); done: lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); @@ -1205,7 +1588,7 @@ static int assoc_helper_channel(struct lbs_private *priv, goto done; } - if (assoc_req->channel == priv->curbssparams.channel) + if (assoc_req->channel == priv->channel) goto done; if (priv->mesh_dev) { @@ -1217,7 +1600,7 @@ static int assoc_helper_channel(struct lbs_private *priv, } lbs_deb_assoc("ASSOC: channel: %d -> %d\n", - priv->curbssparams.channel, assoc_req->channel); + priv->channel, assoc_req->channel); ret = lbs_set_channel(priv, assoc_req->channel); if (ret < 0) @@ -1232,7 +1615,7 @@ static int assoc_helper_channel(struct lbs_private *priv, goto done; } - if (assoc_req->channel != priv->curbssparams.channel) { + if (assoc_req->channel != priv->channel) { lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n", assoc_req->channel); goto restore_mesh; @@ -1253,7 +1636,7 @@ static int assoc_helper_channel(struct lbs_private *priv, restore_mesh: if (priv->mesh_dev) lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, - priv->curbssparams.channel); + priv->channel); done: lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret); @@ -1475,7 +1858,7 @@ static int should_stop_adhoc(struct lbs_private *priv, } if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) { - if (assoc_req->channel != priv->curbssparams.channel) + if (assoc_req->channel != priv->channel) return 1; } @@ -1557,7 +1940,7 @@ static int lbs_find_best_network_ssid(struct lbs_private *priv, found = lbs_find_best_ssid_in_list(priv, preferred_mode); if (found && (found->ssid_len > 0)) { - memcpy(out_ssid, &found->ssid, IW_ESSID_MAX_SIZE); + memcpy(out_ssid, &found->ssid, IEEE80211_MAX_SSID_LEN); *out_ssid_len = found->ssid_len; *out_mode = found->mode; ret = 0; @@ -1775,12 +2158,12 @@ struct assoc_request *lbs_get_association_request(struct lbs_private *priv) assoc_req = priv->pending_assoc_req; if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) { memcpy(&assoc_req->ssid, &priv->curbssparams.ssid, - IW_ESSID_MAX_SIZE); + IEEE80211_MAX_SSID_LEN); assoc_req->ssid_len = priv->curbssparams.ssid_len; } if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) - assoc_req->channel = priv->curbssparams.channel; + assoc_req->channel = priv->channel; if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags)) assoc_req->band = priv->curbssparams.band; |