diff options
Diffstat (limited to 'drivers/net/wireless/libertas/scan.c')
-rw-r--r-- | drivers/net/wireless/libertas/scan.c | 188 |
1 files changed, 90 insertions, 98 deletions
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c index 90c18889b71..8b6ce61aba4 100644 --- a/drivers/net/wireless/libertas/scan.c +++ b/drivers/net/wireless/libertas/scan.c @@ -190,13 +190,13 @@ static inline int is_same_network(struct bss_descriptor *src, * 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP * * - * @param adapter A pointer to struct lbs_adapter + * @param priv A pointer to struct lbs_private * @param index Index in scantable to check against current driver settings * @param mode Network mode: Infrastructure or IBSS * * @return Index in scantable, or error code if negative */ -static int is_network_compatible(struct lbs_adapter *adapter, +static int is_network_compatible(struct lbs_private *priv, struct bss_descriptor * bss, u8 mode) { int matched = 0; @@ -206,31 +206,31 @@ static int is_network_compatible(struct lbs_adapter *adapter, if (bss->mode != mode) goto done; - if ((matched = match_bss_no_security(&adapter->secinfo, bss))) { + if ((matched = match_bss_no_security(&priv->secinfo, bss))) { goto done; - } else if ((matched = match_bss_static_wep(&adapter->secinfo, bss))) { + } else if ((matched = match_bss_static_wep(&priv->secinfo, bss))) { goto done; - } else if ((matched = match_bss_wpa(&adapter->secinfo, bss))) { + } else if ((matched = match_bss_wpa(&priv->secinfo, bss))) { lbs_deb_scan( "is_network_compatible() WPA: wpa_ie 0x%x " "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], - adapter->secinfo.wep_enabled ? "e" : "d", - adapter->secinfo.WPAenabled ? "e" : "d", - adapter->secinfo.WPA2enabled ? "e" : "d", + priv->secinfo.wep_enabled ? "e" : "d", + priv->secinfo.WPAenabled ? "e" : "d", + priv->secinfo.WPA2enabled ? "e" : "d", (bss->capability & WLAN_CAPABILITY_PRIVACY)); goto done; - } else if ((matched = match_bss_wpa2(&adapter->secinfo, bss))) { + } else if ((matched = match_bss_wpa2(&priv->secinfo, bss))) { lbs_deb_scan( "is_network_compatible() WPA2: wpa_ie 0x%x " "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s " "privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], - adapter->secinfo.wep_enabled ? "e" : "d", - adapter->secinfo.WPAenabled ? "e" : "d", - adapter->secinfo.WPA2enabled ? "e" : "d", + priv->secinfo.wep_enabled ? "e" : "d", + priv->secinfo.WPAenabled ? "e" : "d", + priv->secinfo.WPA2enabled ? "e" : "d", (bss->capability & WLAN_CAPABILITY_PRIVACY)); goto done; - } else if ((matched = match_bss_dynamic_wep(&adapter->secinfo, bss))) { + } else if ((matched = match_bss_dynamic_wep(&priv->secinfo, bss))) { lbs_deb_scan( "is_network_compatible() dynamic WEP: " "wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n", @@ -244,9 +244,9 @@ static int is_network_compatible(struct lbs_adapter *adapter, "is_network_compatible() FAILED: wpa_ie 0x%x " "wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0], - adapter->secinfo.wep_enabled ? "e" : "d", - adapter->secinfo.WPAenabled ? "e" : "d", - adapter->secinfo.WPA2enabled ? "e" : "d", + priv->secinfo.wep_enabled ? "e" : "d", + priv->secinfo.WPAenabled ? "e" : "d", + priv->secinfo.WPA2enabled ? "e" : "d", (bss->capability & WLAN_CAPABILITY_PRIVACY)); done: @@ -298,7 +298,6 @@ static int lbs_scan_create_channel_list(struct lbs_private *priv, u8 filteredscan) { - struct lbs_adapter *adapter = priv->adapter; struct region_channel *scanregion; struct chan_freq_power *cfp; int rgnidx; @@ -314,22 +313,22 @@ static int lbs_scan_create_channel_list(struct lbs_private *priv, */ scantype = CMD_SCAN_TYPE_ACTIVE; - for (rgnidx = 0; rgnidx < ARRAY_SIZE(adapter->region_channel); rgnidx++) { - if (priv->adapter->enable11d && - (adapter->connect_status != LBS_CONNECTED) && - (adapter->mesh_connect_status != LBS_CONNECTED)) { + for (rgnidx = 0; rgnidx < ARRAY_SIZE(priv->region_channel); rgnidx++) { + if (priv->enable11d && + (priv->connect_status != LBS_CONNECTED) && + (priv->mesh_connect_status != LBS_CONNECTED)) { /* Scan all the supported chan for the first scan */ - if (!adapter->universal_channel[rgnidx].valid) + if (!priv->universal_channel[rgnidx].valid) continue; - scanregion = &adapter->universal_channel[rgnidx]; + scanregion = &priv->universal_channel[rgnidx]; /* clear the parsed_region_chan for the first scan */ - memset(&adapter->parsed_region_chan, 0x00, - sizeof(adapter->parsed_region_chan)); + memset(&priv->parsed_region_chan, 0x00, + sizeof(priv->parsed_region_chan)); } else { - if (!adapter->region_channel[rgnidx].valid) + if (!priv->region_channel[rgnidx].valid) continue; - scanregion = &adapter->region_channel[rgnidx]; + scanregion = &priv->region_channel[rgnidx]; } for (nextchan = 0; @@ -337,10 +336,10 @@ static int lbs_scan_create_channel_list(struct lbs_private *priv, cfp = scanregion->CFP + nextchan; - if (priv->adapter->enable11d) { + if (priv->enable11d) { scantype = lbs_get_scan_type_11d(cfp->channel, - &adapter-> + &priv-> parsed_region_chan); } @@ -540,7 +539,6 @@ int lbs_scan_networks(struct lbs_private *priv, const struct lbs_ioctl_user_scan_cfg *user_cfg, int full_scan) { - struct lbs_adapter *adapter = priv->adapter; int ret = -ENOMEM; struct chanscanparamset *chan_list; struct chanscanparamset *curr_chans; @@ -598,12 +596,12 @@ int lbs_scan_networks(struct lbs_private *priv, /* Prepare to continue an interrupted scan */ lbs_deb_scan("chan_count %d, last_scanned_channel %d\n", - chan_count, adapter->last_scanned_channel); + chan_count, priv->last_scanned_channel); curr_chans = chan_list; /* advance channel list by already-scanned-channels */ - if (adapter->last_scanned_channel > 0) { - curr_chans += adapter->last_scanned_channel; - chan_count -= adapter->last_scanned_channel; + if (priv->last_scanned_channel > 0) { + curr_chans += priv->last_scanned_channel; + chan_count -= priv->last_scanned_channel; } /* Send scan command(s) @@ -627,12 +625,12 @@ int lbs_scan_networks(struct lbs_private *priv, /* somehow schedule the next part of the scan */ if (chan_count && !full_scan && - !priv->adapter->surpriseremoved) { + !priv->surpriseremoved) { /* -1 marks just that we're currently scanning */ - if (adapter->last_scanned_channel < 0) - adapter->last_scanned_channel = to_scan; + if (priv->last_scanned_channel < 0) + priv->last_scanned_channel = to_scan; else - adapter->last_scanned_channel += to_scan; + priv->last_scanned_channel += to_scan; cancel_delayed_work(&priv->scan_work); queue_delayed_work(priv->work_thread, &priv->scan_work, msecs_to_jiffies(300)); @@ -646,24 +644,24 @@ int lbs_scan_networks(struct lbs_private *priv, #ifdef CONFIG_LIBERTAS_DEBUG /* Dump the scan table */ - mutex_lock(&adapter->lock); + mutex_lock(&priv->lock); lbs_deb_scan("scan table:\n"); - list_for_each_entry(iter, &adapter->network_list, list) + list_for_each_entry(iter, &priv->network_list, list) lbs_deb_scan("%02d: BSSID %s, RSSI %d, SSID '%s'\n", i++, print_mac(mac, iter->bssid), (s32) iter->rssi, escape_essid(iter->ssid, iter->ssid_len)); - mutex_unlock(&adapter->lock); + mutex_unlock(&priv->lock); #endif out2: - adapter->last_scanned_channel = 0; + priv->last_scanned_channel = 0; out: - if (adapter->connect_status == LBS_CONNECTED) { + if (priv->connect_status == LBS_CONNECTED) { netif_carrier_on(priv->dev); netif_wake_queue(priv->dev); } - if (priv->mesh_dev && (adapter->mesh_connect_status == LBS_CONNECTED)) { + if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED)) { netif_carrier_on(priv->mesh_dev); netif_wake_queue(priv->mesh_dev); } @@ -931,13 +929,13 @@ done: * * Used in association code * - * @param adapter A pointer to struct lbs_adapter + * @param priv A pointer to struct lbs_private * @param bssid BSSID to find in the scan list * @param mode Network mode: Infrastructure or IBSS * * @return index in BSSID list, or error return code (< 0) */ -struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_adapter *adapter, +struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv, u8 * bssid, u8 mode) { struct bss_descriptor * iter_bss; @@ -955,14 +953,14 @@ struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_adapter *adapter, * continue past a matched bssid that is not compatible in case there * is an AP with multiple SSIDs assigned to the same BSSID */ - mutex_lock(&adapter->lock); - list_for_each_entry (iter_bss, &adapter->network_list, list) { + mutex_lock(&priv->lock); + list_for_each_entry (iter_bss, &priv->network_list, list) { if (compare_ether_addr(iter_bss->bssid, bssid)) continue; /* bssid doesn't match */ switch (mode) { case IW_MODE_INFRA: case IW_MODE_ADHOC: - if (!is_network_compatible(adapter, iter_bss, mode)) + if (!is_network_compatible(priv, iter_bss, mode)) break; found_bss = iter_bss; break; @@ -971,7 +969,7 @@ struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_adapter *adapter, break; } } - mutex_unlock(&adapter->lock); + mutex_unlock(&priv->lock); out: lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); @@ -983,14 +981,14 @@ out: * * Used in association code * - * @param adapter A pointer to struct lbs_adapter + * @param priv A pointer to struct lbs_private * @param ssid SSID to find in the list * @param bssid BSSID to qualify the SSID selection (if provided) * @param mode Network mode: Infrastructure or IBSS * * @return index in BSSID list */ -struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_adapter *adapter, +struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv, u8 *ssid, u8 ssid_len, u8 * bssid, u8 mode, int channel) { @@ -1001,9 +999,9 @@ struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_adapter *adapter, lbs_deb_enter(LBS_DEB_SCAN); - mutex_lock(&adapter->lock); + mutex_lock(&priv->lock); - list_for_each_entry (iter_bss, &adapter->network_list, list) { + list_for_each_entry (iter_bss, &priv->network_list, list) { if ( !tmp_oldest || (iter_bss->last_scanned < tmp_oldest->last_scanned)) tmp_oldest = iter_bss; @@ -1019,7 +1017,7 @@ struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_adapter *adapter, switch (mode) { case IW_MODE_INFRA: case IW_MODE_ADHOC: - if (!is_network_compatible(adapter, iter_bss, mode)) + if (!is_network_compatible(priv, iter_bss, mode)) break; if (bssid) { @@ -1044,7 +1042,7 @@ struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_adapter *adapter, } out: - mutex_unlock(&adapter->lock); + mutex_unlock(&priv->lock); lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss); return found_bss; } @@ -1055,12 +1053,12 @@ out: * Search the scan table for the best SSID that also matches the current * adapter network preference (infrastructure or adhoc) * - * @param adapter A pointer to struct lbs_adapter + * @param priv A pointer to struct lbs_private * * @return index in BSSID list */ static struct bss_descriptor *lbs_find_best_ssid_in_list( - struct lbs_adapter *adapter, + struct lbs_private *priv, u8 mode) { u8 bestrssi = 0; @@ -1069,13 +1067,13 @@ static struct bss_descriptor *lbs_find_best_ssid_in_list( lbs_deb_enter(LBS_DEB_SCAN); - mutex_lock(&adapter->lock); + mutex_lock(&priv->lock); - list_for_each_entry (iter_bss, &adapter->network_list, list) { + list_for_each_entry (iter_bss, &priv->network_list, list) { switch (mode) { case IW_MODE_INFRA: case IW_MODE_ADHOC: - if (!is_network_compatible(adapter, iter_bss, mode)) + if (!is_network_compatible(priv, iter_bss, mode)) break; if (SCAN_RSSI(iter_bss->rssi) <= bestrssi) break; @@ -1092,7 +1090,7 @@ static struct bss_descriptor *lbs_find_best_ssid_in_list( } } - mutex_unlock(&adapter->lock); + mutex_unlock(&priv->lock); lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss); return best_bss; } @@ -1110,17 +1108,16 @@ static struct bss_descriptor *lbs_find_best_ssid_in_list( int lbs_find_best_network_ssid(struct lbs_private *priv, u8 *out_ssid, u8 *out_ssid_len, u8 preferred_mode, u8 *out_mode) { - struct lbs_adapter *adapter = priv->adapter; int ret = -1; struct bss_descriptor * found; lbs_deb_enter(LBS_DEB_SCAN); lbs_scan_networks(priv, NULL, 1); - if (adapter->surpriseremoved) + if (priv->surpriseremoved) goto out; - found = lbs_find_best_ssid_in_list(adapter, preferred_mode); + 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); *out_ssid_len = found->ssid_len; @@ -1150,7 +1147,6 @@ out: int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid, u8 ssid_len, u8 clear_ssid) { - struct lbs_adapter *adapter = priv->adapter; struct lbs_ioctl_user_scan_cfg scancfg; int ret = 0; @@ -1166,7 +1162,7 @@ int lbs_send_specific_ssid_scan(struct lbs_private *priv, scancfg.clear_ssid = clear_ssid; lbs_scan_networks(priv, &scancfg, 1); - if (adapter->surpriseremoved) { + if (priv->surpriseremoved) { ret = -1; goto out; } @@ -1192,7 +1188,6 @@ static inline char *lbs_translate_scan(struct lbs_private *priv, char *start, char *stop, struct bss_descriptor *bss) { - struct lbs_adapter *adapter = priv->adapter; struct chan_freq_power *cfp; char *current_val; /* For rates */ struct iw_event iwe; /* Temporary buffer */ @@ -1204,7 +1199,7 @@ static inline char *lbs_translate_scan(struct lbs_private *priv, lbs_deb_enter(LBS_DEB_SCAN); - cfp = lbs_find_cfp_by_band_and_channel(adapter, 0, bss->channel); + cfp = lbs_find_cfp_by_band_and_channel(priv, 0, bss->channel); if (!cfp) { lbs_deb_scan("Invalid channel number %d\n", bss->channel); start = NULL; @@ -1247,25 +1242,25 @@ static inline char *lbs_translate_scan(struct lbs_private *priv, if (iwe.u.qual.qual > 100) iwe.u.qual.qual = 100; - if (adapter->NF[TYPE_BEACON][TYPE_NOAVG] == 0) { + if (priv->NF[TYPE_BEACON][TYPE_NOAVG] == 0) { iwe.u.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE; } else { iwe.u.qual.noise = - CAL_NF(adapter->NF[TYPE_BEACON][TYPE_NOAVG]); + CAL_NF(priv->NF[TYPE_BEACON][TYPE_NOAVG]); } /* Locally created ad-hoc BSSs won't have beacons if this is the * only station in the adhoc network; so get signal strength * from receive statistics. */ - if ((adapter->mode == IW_MODE_ADHOC) - && adapter->adhoccreate - && !lbs_ssid_cmp(adapter->curbssparams.ssid, - adapter->curbssparams.ssid_len, + if ((priv->mode == IW_MODE_ADHOC) + && priv->adhoccreate + && !lbs_ssid_cmp(priv->curbssparams.ssid, + priv->curbssparams.ssid_len, bss->ssid, bss->ssid_len)) { int snr, nf; - snr = adapter->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE; - nf = adapter->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE; + snr = priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE; + nf = priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE; iwe.u.qual.level = CAL_RSSI(snr, nf); } start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN); @@ -1294,10 +1289,10 @@ static inline char *lbs_translate_scan(struct lbs_private *priv, stop, &iwe, IW_EV_PARAM_LEN); } if ((bss->mode == IW_MODE_ADHOC) - && !lbs_ssid_cmp(adapter->curbssparams.ssid, - adapter->curbssparams.ssid_len, + && !lbs_ssid_cmp(priv->curbssparams.ssid, + priv->curbssparams.ssid_len, bss->ssid, bss->ssid_len) - && adapter->adhoccreate) { + && priv->adhoccreate) { iwe.u.bitrate.value = 22 * 500000; current_val = iwe_stream_add_value(start, current_val, stop, &iwe, IW_EV_PARAM_LEN); @@ -1356,7 +1351,6 @@ int lbs_set_scan(struct net_device *dev, struct iw_request_info *info, struct iw_param *wrqu, char *extra) { struct lbs_private *priv = dev->priv; - struct lbs_adapter *adapter = priv->adapter; lbs_deb_enter(LBS_DEB_SCAN); @@ -1380,9 +1374,9 @@ int lbs_set_scan(struct net_device *dev, struct iw_request_info *info, queue_delayed_work(priv->work_thread, &priv->scan_work, msecs_to_jiffies(50)); /* set marker that currently a scan is taking place */ - adapter->last_scanned_channel = -1; + priv->last_scanned_channel = -1; - if (adapter->surpriseremoved) + if (priv->surpriseremoved) return -EIO; lbs_deb_leave(LBS_DEB_SCAN); @@ -1405,7 +1399,6 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info, { #define SCAN_ITEM_SIZE 128 struct lbs_private *priv = dev->priv; - struct lbs_adapter *adapter = priv->adapter; int err = 0; char *ev = extra; char *stop = ev + dwrq->length; @@ -1415,17 +1408,17 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_SCAN); /* iwlist should wait until the current scan is finished */ - if (adapter->last_scanned_channel) + if (priv->last_scanned_channel) return -EAGAIN; /* Update RSSI if current BSS is a locally created ad-hoc BSS */ - if ((adapter->mode == IW_MODE_ADHOC) && adapter->adhoccreate) { + if ((priv->mode == IW_MODE_ADHOC) && priv->adhoccreate) { lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0, CMD_OPTION_WAITFORRSP, 0, NULL); } - mutex_lock(&adapter->lock); - list_for_each_entry_safe (iter_bss, safe, &adapter->network_list, list) { + mutex_lock(&priv->lock); + list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) { char * next_ev; unsigned long stale_time; @@ -1442,7 +1435,7 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info, stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE; if (time_after(jiffies, stale_time)) { list_move_tail (&iter_bss->list, - &adapter->network_free_list); + &priv->network_free_list); clear_bss_descriptor(iter_bss); continue; } @@ -1453,7 +1446,7 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info, continue; ev = next_ev; } - mutex_unlock(&adapter->lock); + mutex_unlock(&priv->lock); dwrq->length = (ev - extra); dwrq->flags = 0; @@ -1538,7 +1531,6 @@ int lbs_cmd_80211_scan(struct lbs_private *priv, */ int lbs_ret_80211_scan(struct lbs_private *priv, struct cmd_ds_command *resp) { - struct lbs_adapter *adapter = priv->adapter; struct cmd_ds_802_11_scan_rsp *pscan; struct bss_descriptor * iter_bss; struct bss_descriptor * safe; @@ -1552,11 +1544,11 @@ int lbs_ret_80211_scan(struct lbs_private *priv, struct cmd_ds_command *resp) lbs_deb_enter(LBS_DEB_SCAN); /* Prune old entries from scan table */ - list_for_each_entry_safe (iter_bss, safe, &adapter->network_list, list) { + list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) { unsigned long stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE; if (time_before(jiffies, stale_time)) continue; - list_move_tail (&iter_bss->list, &adapter->network_free_list); + list_move_tail (&iter_bss->list, &priv->network_free_list); clear_bss_descriptor(iter_bss); } @@ -1609,7 +1601,7 @@ int lbs_ret_80211_scan(struct lbs_private *priv, struct cmd_ds_command *resp) } /* Try to find this bss in the scan table */ - list_for_each_entry (iter_bss, &adapter->network_list, list) { + list_for_each_entry (iter_bss, &priv->network_list, list) { if (is_same_network(iter_bss, &new)) { found = iter_bss; break; @@ -1623,16 +1615,16 @@ int lbs_ret_80211_scan(struct lbs_private *priv, struct cmd_ds_command *resp) if (found) { /* found, clear it */ clear_bss_descriptor(found); - } else if (!list_empty(&adapter->network_free_list)) { + } else if (!list_empty(&priv->network_free_list)) { /* Pull one from the free list */ - found = list_entry(adapter->network_free_list.next, + found = list_entry(priv->network_free_list.next, struct bss_descriptor, list); - list_move_tail(&found->list, &adapter->network_list); + list_move_tail(&found->list, &priv->network_list); } else if (oldest) { /* If there are no more slots, expire the oldest */ found = oldest; clear_bss_descriptor(found); - list_move_tail(&found->list, &adapter->network_list); + list_move_tail(&found->list, &priv->network_list); } else { continue; } |