diff options
author | Johannes Berg <johannes@sipsolutions.net> | 2009-07-01 19:41:17 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-07-10 19:01:53 (GMT) |
commit | ab1faead50d09165b58c2854997c7205ca9c0d22 (patch) | |
tree | 6eb456e24aab52cdd9ed152d09008635a1ebd555 /net/mac80211/mlme.c | |
parent | 6dc1cb0319997648f59b0f46b9e093e779f0353d (diff) | |
download | linux-fsl-qoriq-ab1faead50d09165b58c2854997c7205ca9c0d22.tar.xz |
mac80211: remove dead code, clean up
With mac80211 now always controlled by an external SME,
a lot of code is dead -- SSID, BSSID, channel selection
is always done externally, etc. Additionally, rename
IEEE80211_STA_TKIP_WEP_USED to IEEE80211_STA_DISABLE_11N
and clean up the code a bit.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r-- | net/mac80211/mlme.c | 231 |
1 files changed, 22 insertions, 209 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 2b357c7..2d9b666 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -347,7 +347,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) sband->ht_cap.ht_supported && (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) && ht_ie[1] >= sizeof(struct ieee80211_ht_info) && - (!(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))) { + (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))) { struct ieee80211_ht_info *ht_info = (struct ieee80211_ht_info *)(ht_ie + 2); u16 cap = sband->ht_cap.cap; @@ -981,8 +981,6 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; struct ieee80211_local *local = sdata->local; - u8 *ies; - size_t ies_len; ifmgd->auth_tries++; if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) { @@ -1010,15 +1008,8 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata) printk(KERN_DEBUG "%s: authenticate with AP %pM\n", sdata->dev->name, ifmgd->bssid); - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - ies = ifmgd->sme_auth_ie; - ies_len = ifmgd->sme_auth_ie_len; - } else { - ies = NULL; - ies_len = 0; - } - ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ies, ies_len, - ifmgd->bssid, 0); + ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, ifmgd->sme_auth_ie, + ifmgd->sme_auth_ie_len, ifmgd->bssid, 0); ifmgd->auth_transaction = 2; mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT); @@ -1128,44 +1119,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, sta_info_destroy(sta); } -static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata) -{ - if (!sdata || !sdata->default_key || - sdata->default_key->conf.alg != ALG_WEP) - return 0; - return 1; -} - -static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - struct ieee80211_bss *bss; - int bss_privacy; - int wep_privacy; - int privacy_invoked; - - if (!ifmgd || (ifmgd->flags & IEEE80211_STA_EXT_SME)) - return 0; - - bss = ieee80211_rx_bss_get(local, ifmgd->bssid, - local->hw.conf.channel->center_freq, - ifmgd->ssid, ifmgd->ssid_len); - if (!bss) - return 0; - - bss_privacy = !!(bss->cbss.capability & WLAN_CAPABILITY_PRIVACY); - wep_privacy = !!ieee80211_sta_wep_configured(sdata); - privacy_invoked = !!(ifmgd->flags & IEEE80211_STA_PRIVACY_INVOKED); - - ieee80211_rx_bss_put(local, bss); - - if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) - return 0; - - return 1; -} - static void ieee80211_associate(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; @@ -1195,14 +1148,6 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata) ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE; printk(KERN_DEBUG "%s: associate with AP %pM\n", sdata->dev->name, ifmgd->bssid); - if (ieee80211_privacy_mismatch(sdata)) { - printk(KERN_DEBUG "%s: mismatch in privacy configuration and " - "mixed-cell disabled - abort association\n", sdata->dev->name); - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - return; - } - ieee80211_send_assoc(sdata); mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); @@ -1360,12 +1305,9 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata) printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name); ifmgd->flags |= IEEE80211_STA_AUTHENTICATED; - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - /* Wait for SME to request association */ - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(sdata->local); - } else - ieee80211_associate(sdata); + /* Wait for SME to request association */ + ifmgd->state = IEEE80211_STA_MLME_DISABLED; + ieee80211_recalc_idle(sdata->local); } @@ -1460,15 +1402,6 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n", sdata->dev->name, reason_code); - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE || - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE || - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) { - ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE; - mod_timer(&ifmgd->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); - } - ieee80211_set_disassoc(sdata, true, false, 0); ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED; cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len, GFP_KERNEL); @@ -1494,13 +1427,6 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n", sdata->dev->name, reason_code); - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) { - ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE; - mod_timer(&ifmgd->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); - } - ieee80211_set_disassoc(sdata, false, false, reason_code); cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len, GFP_KERNEL); } @@ -1573,11 +1499,9 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET; cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len, GFP_KERNEL); - if (ifmgd->flags & IEEE80211_STA_EXT_SME) { - /* Wait for SME to decide what to do next */ - ifmgd->state = IEEE80211_STA_MLME_DISABLED; - ieee80211_recalc_idle(local); - } + /* Wait for SME to decide what to do next */ + ifmgd->state = IEEE80211_STA_MLME_DISABLED; + ieee80211_recalc_idle(local); return; } @@ -1683,8 +1607,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, else sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - /* If TKIP/WEP is used, no need to parse AP's HT capabilities */ - if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) + if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) ieee80211_ht_cap_ie_to_sta_ht_cap(sband, elems.ht_cap_elem, &sta->sta.ht_cap); @@ -1718,7 +1641,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (elems.ht_info_elem && elems.wmm_param && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) && - !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) + !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem, ap_ht_cap_flags); @@ -1931,7 +1854,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && - !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) { + !(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) { struct sta_info *sta; struct ieee80211_supported_band *sband; u16 ap_ht_cap_flags; @@ -2090,26 +2013,6 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata) u16 capa_val = WLAN_CAPABILITY_ESS; struct ieee80211_channel *chan = local->oper_channel; - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) && - ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL)) { - capa_mask |= WLAN_CAPABILITY_PRIVACY; - if (sdata->default_key) - capa_val |= WLAN_CAPABILITY_PRIVACY; - } - - if (ifmgd->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) - chan = NULL; - - if (ifmgd->flags & IEEE80211_STA_AUTO_BSSID_SEL) - bssid = NULL; - - if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL) { - ssid = NULL; - ssid_len = 0; - } - bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid, ssid, ssid_len, capa_mask, capa_val); @@ -2119,10 +2022,6 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata) local->oper_channel_type = NL80211_CHAN_NO_HT; ieee80211_hw_config(local, 0); - if (!(ifmgd->flags & IEEE80211_STA_SSID_SET)) - ieee80211_sta_set_ssid(sdata, bss->ssid, - bss->ssid_len); - ieee80211_sta_set_bssid(sdata, bss->cbss.bssid); ieee80211_sta_def_wmm_params(sdata, bss->supp_rates_len, bss->supp_rates); if (sdata->u.mgd.mfp == IEEE80211_MFP_REQUIRED) @@ -2232,14 +2131,6 @@ static void ieee80211_sta_work(struct work_struct *work) WARN_ON(1); break; } - - if (ieee80211_privacy_mismatch(sdata)) { - printk(KERN_DEBUG "%s: privacy configuration mismatch and " - "mixed-cell disabled - disassociate\n", sdata->dev->name); - - ieee80211_set_disassoc(sdata, false, true, - WLAN_REASON_UNSPECIFIED); - } } static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) @@ -2306,9 +2197,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) skb_queue_head_init(&ifmgd->skb_queue); ifmgd->capab = WLAN_CAPABILITY_ESS; - ifmgd->flags |= IEEE80211_STA_CREATE_IBSS | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; + ifmgd->flags = 0; if (sdata->local->hw.queues >= 4) ifmgd->flags |= IEEE80211_STA_WMM_ENABLED; @@ -2324,96 +2213,20 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata) if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) return; - if ((ifmgd->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && - (ifmgd->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { - - if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_DEAUTH_LEAVING); - - if (ifmgd->ssid_len == 0) { - /* - * Only allow association to be started if a valid SSID - * is configured. - */ - return; - } - - if (!(ifmgd->flags & IEEE80211_STA_EXT_SME) || - ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE) - set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request); - else if (ifmgd->flags & IEEE80211_STA_EXT_SME) - set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request); - queue_work(local->hw.workqueue, &ifmgd->work); - } -} - -int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - if (ifmgd->ssid_len) - ifmgd->flags |= IEEE80211_STA_SSID_SET; - else - ifmgd->flags &= ~IEEE80211_STA_SSID_SET; - - return 0; -} - -int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len) -{ - struct ieee80211_if_managed *ifmgd; - - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - ifmgd = &sdata->u.mgd; - - if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) { - if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) - ieee80211_set_disassoc(sdata, true, true, - WLAN_REASON_DEAUTH_LEAVING); - - /* - * Do not use reassociation if SSID is changed (different ESS). - */ - ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid)); - memcpy(ifmgd->ssid, ssid, len); - ifmgd->ssid_len = len; - } - - return ieee80211_sta_commit(sdata); -} - -int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - memcpy(ssid, ifmgd->ssid, ifmgd->ssid_len); - *len = ifmgd->ssid_len; - return 0; -} - -int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - if (compare_ether_addr(bssid, ifmgd->bssid) != 0 && - ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) + if (WARN_ON(ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)) ieee80211_set_disassoc(sdata, true, true, WLAN_REASON_DEAUTH_LEAVING); - if (is_valid_ether_addr(bssid)) { - memcpy(ifmgd->bssid, bssid, ETH_ALEN); - ifmgd->flags |= IEEE80211_STA_BSSID_SET; - } else { - memset(ifmgd->bssid, 0, ETH_ALEN); - ifmgd->flags &= ~IEEE80211_STA_BSSID_SET; + if (WARN_ON(ifmgd->ssid_len == 0)) { + /* + * Only allow association to be started if a valid SSID + * is configured. + */ + return; } - return ieee80211_sta_commit(sdata); + set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request); + queue_work(local->hw.workqueue, &ifmgd->work); } int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, |