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[MAC80211]: Remove bitfields from struct ieee80211_txrx_data
mac80211, remove bitfields from struct ieee80211_txrx_data Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Michael Wu <flamingice@sourmilk.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Slaby
David S. Miller
parent
e8bf96495c
commit
badffb725c
@ -113,6 +113,15 @@ typedef enum {
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TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
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} ieee80211_txrx_result;
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/* flags used in struct ieee80211_txrx_data.flags */
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/* whether the MSDU was fragmented */
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#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
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#define IEEE80211_TXRXD_TXUNICAST BIT(1)
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#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
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#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
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#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
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/* frame is destined to interface currently processed (incl. multicast frames) */
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#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
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struct ieee80211_txrx_data {
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struct sk_buff *skb;
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struct net_device *dev;
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@ -121,13 +130,10 @@ struct ieee80211_txrx_data {
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struct sta_info *sta;
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u16 fc, ethertype;
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struct ieee80211_key *key;
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unsigned int fragmented:1; /* whether the MSDU was fragmented */
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unsigned int flags;
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union {
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struct {
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struct ieee80211_tx_control *control;
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unsigned int unicast:1;
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unsigned int ps_buffered:1;
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unsigned int probe_last_frag:1;
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struct ieee80211_hw_mode *mode;
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struct ieee80211_rate *rate;
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/* use this rate (if set) for last fragment; rate can
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@ -147,10 +153,6 @@ struct ieee80211_txrx_data {
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int sent_ps_buffered;
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int queue;
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int load;
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unsigned int in_scan:1;
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/* frame is destined to interface currently processed
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* (including multicast frames) */
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unsigned int ra_match:1;
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} rx;
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} u;
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};
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@ -176,7 +178,7 @@ struct ieee80211_tx_stored_packet {
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int last_frag_rateidx;
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int last_frag_hwrate;
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struct ieee80211_rate *last_frag_rate;
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unsigned int last_frag_rate_ctrl_probe:1;
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unsigned int last_frag_rate_ctrl_probe;
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};
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typedef ieee80211_txrx_result (*ieee80211_tx_handler)
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@ -221,7 +221,7 @@ ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
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return TXRX_QUEUED;
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}
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if (unlikely(rx->u.rx.in_scan)) {
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if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
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/* scanning finished during invoking of handlers */
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I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
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return TXRX_DROP;
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@ -241,7 +241,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
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if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
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rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
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hdr->seq_ctrl)) {
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if (rx->u.rx.ra_match) {
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if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
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rx->local->dot11FrameDuplicateCount++;
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rx->sta->num_duplicates++;
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}
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@ -259,7 +259,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
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return TXRX_DROP;
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}
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if (!rx->u.rx.ra_match)
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if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
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rx->skb->pkt_type = PACKET_OTHERHOST;
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else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
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rx->skb->pkt_type = PACKET_HOST;
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@ -287,7 +287,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
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if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
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!(rx->fc & IEEE80211_FCTL_TODS) &&
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(rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
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|| !rx->u.rx.ra_match) {
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|| !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
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/* Drop IBSS frames and frames for other hosts
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* silently. */
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return TXRX_DROP;
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@ -338,7 +338,7 @@ ieee80211_rx_h_load_key(struct ieee80211_txrx_data *rx)
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* No point in finding a key if the frame is neither
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* addressed to us nor a multicast frame.
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*/
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if (!rx->u.rx.ra_match)
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if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
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return TXRX_CONTINUE;
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if (!is_multicast_ether_addr(hdr->addr1) && rx->sta && rx->sta->key) {
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@ -480,7 +480,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
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sta->last_rx = jiffies;
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}
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if (!rx->u.rx.ra_match)
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if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
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return TXRX_CONTINUE;
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sta->rx_fragments++;
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@ -522,7 +522,8 @@ ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx)
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{
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if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
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(rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
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!rx->key || rx->key->alg != ALG_WEP || !rx->u.rx.ra_match)
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!rx->key || rx->key->alg != ALG_WEP ||
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!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
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return TXRX_CONTINUE;
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/* Check for weak IVs, if hwaccel did not remove IV from the frame */
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@ -755,7 +756,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
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}
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/* Complete frame has been reassembled - process it now */
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rx->fragmented = 1;
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rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
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out:
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if (rx->sta)
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@ -776,7 +777,7 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
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if (likely(!rx->sta ||
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(rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
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(rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
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!rx->u.rx.ra_match))
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!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
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return TXRX_CONTINUE;
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skb = skb_dequeue(&rx->sta->tx_filtered);
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@ -860,7 +861,8 @@ static ieee80211_txrx_result
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ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
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{
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if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
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rx->sdata->type != IEEE80211_IF_TYPE_STA && rx->u.rx.ra_match) {
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rx->sdata->type != IEEE80211_IF_TYPE_STA &&
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(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
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/* Pass both encrypted and unencrypted EAPOL frames to user
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* space for processing. */
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if (!rx->local->apdev)
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@ -1053,7 +1055,8 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
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sdata->stats.rx_bytes += skb->len;
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if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
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|| sdata->type == IEEE80211_IF_TYPE_VLAN) && rx->u.rx.ra_match) {
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|| sdata->type == IEEE80211_IF_TYPE_VLAN) &&
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(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
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if (is_multicast_ether_addr(skb->data)) {
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/* send multicast frames both to higher layers in
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* local net stack and back to the wireless media */
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@ -1104,7 +1107,7 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
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{
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struct ieee80211_sub_if_data *sdata;
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if (!rx->u.rx.ra_match)
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if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
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return TXRX_DROP;
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sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
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@ -1279,30 +1282,30 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
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if (!bssid)
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return 0;
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if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
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if (!rx->u.rx.in_scan)
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if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
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return 0;
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rx->u.rx.ra_match = 0;
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rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
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} else if (!multicast &&
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compare_ether_addr(sdata->dev->dev_addr,
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hdr->addr1) != 0) {
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if (!sdata->promisc)
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return 0;
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rx->u.rx.ra_match = 0;
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rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
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}
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break;
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case IEEE80211_IF_TYPE_IBSS:
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if (!bssid)
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return 0;
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if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
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if (!rx->u.rx.in_scan)
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if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
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return 0;
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rx->u.rx.ra_match = 0;
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rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
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} else if (!multicast &&
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compare_ether_addr(sdata->dev->dev_addr,
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hdr->addr1) != 0) {
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if (!sdata->promisc)
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return 0;
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rx->u.rx.ra_match = 0;
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rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
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} else if (!rx->sta)
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rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
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bssid, hdr->addr2);
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@ -1314,11 +1317,12 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
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return 0;
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} else if (!ieee80211_bssid_match(bssid,
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sdata->dev->dev_addr)) {
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if (!rx->u.rx.in_scan)
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if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
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return 0;
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rx->u.rx.ra_match = 0;
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rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
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}
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if (sdata->dev == sdata->local->mdev && !rx->u.rx.in_scan)
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if (sdata->dev == sdata->local->mdev &&
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!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
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/* do not receive anything via
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* master device when not scanning */
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return 0;
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@ -1384,7 +1388,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
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}
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if (unlikely(local->sta_scanning))
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rx.u.rx.in_scan = 1;
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rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
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if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
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sta) != TXRX_CONTINUE)
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@ -1394,7 +1398,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
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skb_push(skb, radiotap_len);
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if (sta && !sta->assoc_ap && !(sta->flags & WLAN_STA_WDS) &&
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!local->iff_promiscs && !is_multicast_ether_addr(hdr->addr1)) {
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rx.u.rx.ra_match = 1;
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rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
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ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
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rx.sta);
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sta_info_put(sta);
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@ -1405,7 +1409,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
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read_lock(&local->sub_if_lock);
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list_for_each_entry(sdata, &local->sub_if_list, list) {
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rx.u.rx.ra_match = 1;
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rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
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if (!netif_running(sdata->dev))
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continue;
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@ -223,12 +223,12 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
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(tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
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return TXRX_DROP;
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if (tx->u.tx.ps_buffered)
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if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
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return TXRX_CONTINUE;
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sta_flags = tx->sta ? tx->sta->flags : 0;
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if (likely(tx->u.tx.unicast)) {
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if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
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if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
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tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
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(tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
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@ -410,10 +410,10 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
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static ieee80211_txrx_result
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ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
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{
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if (unlikely(tx->u.tx.ps_buffered))
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if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
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return TXRX_CONTINUE;
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if (tx->u.tx.unicast)
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if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
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return ieee80211_tx_h_unicast_ps_buf(tx);
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else
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return ieee80211_tx_h_multicast_ps_buf(tx);
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@ -467,7 +467,7 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
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u8 *pos;
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int frag_threshold = tx->local->fragmentation_threshold;
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if (!tx->fragmented)
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if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
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return TXRX_CONTINUE;
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first = tx->skb;
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@ -604,7 +604,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
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&extra);
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if (unlikely(extra.probe != NULL)) {
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tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE;
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tx->u.tx.probe_last_frag = 1;
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tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
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tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
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tx->u.tx.rate = extra.probe;
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} else {
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@ -613,11 +613,13 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
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if (!tx->u.tx.rate)
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return TXRX_DROP;
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if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
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tx->sdata->use_protection && tx->fragmented &&
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extra.nonerp) {
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tx->sdata->use_protection &&
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(tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
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tx->u.tx.last_frag_rate = tx->u.tx.rate;
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tx->u.tx.probe_last_frag = extra.probe ? 1 : 0;
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if (extra.probe)
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tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
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else
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tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
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tx->u.tx.rate = extra.nonerp;
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tx->u.tx.control->rate = extra.nonerp;
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tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
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@ -654,7 +656,7 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
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control->retry_limit = 1;
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}
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if (tx->fragmented) {
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if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
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/* Do not use multiple retry rates when sending fragmented
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* frames.
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* TODO: The last fragment could still use multiple retry
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@ -667,7 +669,8 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
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* for the frame. */
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if (mode->mode == MODE_IEEE80211G &&
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(tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
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tx->u.tx.unicast && tx->sdata->use_protection &&
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(tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
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tx->sdata->use_protection &&
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!(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
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control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
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@ -685,8 +688,8 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
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* for remaining fragments will be updated when they are being sent
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* to low-level driver in ieee80211_tx(). */
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dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
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tx->fragmented ? tx->u.tx.extra_frag[0]->len :
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0);
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(tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
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tx->u.tx.extra_frag[0]->len : 0);
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hdr->duration_id = cpu_to_le16(dur);
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if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
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@ -976,15 +979,20 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
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}
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tx->u.tx.control = control;
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tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1);
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if (is_multicast_ether_addr(hdr->addr1))
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if (is_multicast_ether_addr(hdr->addr1)) {
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tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
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control->flags |= IEEE80211_TXCTL_NO_ACK;
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else
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} else {
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tx->flags |= IEEE80211_TXRXD_TXUNICAST;
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control->flags &= ~IEEE80211_TXCTL_NO_ACK;
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tx->fragmented = local->fragmentation_threshold <
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IEEE80211_MAX_FRAG_THRESHOLD && tx->u.tx.unicast &&
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skb->len + FCS_LEN > local->fragmentation_threshold &&
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(!local->ops->set_frag_threshold);
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}
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if (local->fragmentation_threshold < IEEE80211_MAX_FRAG_THRESHOLD &&
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(tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
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skb->len + FCS_LEN > local->fragmentation_threshold &&
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!local->ops->set_frag_threshold)
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tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
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else
|
||||
tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
|
||||
if (!tx->sta)
|
||||
control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
|
||||
else if (tx->sta->clear_dst_mask) {
|
||||
@ -1055,7 +1063,7 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
|
||||
if (i == tx->u.tx.num_extra_frag) {
|
||||
control->tx_rate = tx->u.tx.last_frag_hwrate;
|
||||
control->rate = tx->u.tx.last_frag_rate;
|
||||
if (tx->u.tx.probe_last_frag)
|
||||
if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
|
||||
control->flags |=
|
||||
IEEE80211_TXCTL_RATE_CTRL_PROBE;
|
||||
else
|
||||
@ -1186,7 +1194,8 @@ retry:
|
||||
store->num_extra_frag = tx.u.tx.num_extra_frag;
|
||||
store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
|
||||
store->last_frag_rate = tx.u.tx.last_frag_rate;
|
||||
store->last_frag_rate_ctrl_probe = tx.u.tx.probe_last_frag;
|
||||
store->last_frag_rate_ctrl_probe =
|
||||
!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
|
||||
}
|
||||
return 0;
|
||||
|
||||
@ -1613,7 +1622,9 @@ void ieee80211_tx_pending(unsigned long data)
|
||||
tx.u.tx.num_extra_frag = store->num_extra_frag;
|
||||
tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
|
||||
tx.u.tx.last_frag_rate = store->last_frag_rate;
|
||||
tx.u.tx.probe_last_frag = store->last_frag_rate_ctrl_probe;
|
||||
tx.flags = 0;
|
||||
if (store->last_frag_rate_ctrl_probe)
|
||||
tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
|
||||
ret = __ieee80211_tx(local, store->skb, &tx);
|
||||
if (ret) {
|
||||
if (ret == IEEE80211_TX_FRAG_AGAIN)
|
||||
@ -1859,7 +1870,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
|
||||
dev_kfree_skb_any(skb);
|
||||
}
|
||||
sta = tx.sta;
|
||||
tx.u.tx.ps_buffered = 1;
|
||||
tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
|
||||
|
||||
for (handler = local->tx_handlers; *handler != NULL; handler++) {
|
||||
res = (*handler)(&tx);
|
||||
|
||||
@ -90,7 +90,7 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
|
||||
return TXRX_DROP;
|
||||
|
||||
if (!tx->key->force_sw_encrypt &&
|
||||
!tx->fragmented &&
|
||||
!(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
|
||||
!(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
|
||||
!wpa_test) {
|
||||
/* hwaccel - with no need for preallocated room for Michael MIC
|
||||
@ -154,7 +154,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
|
||||
/* Need to verify Michael MIC sometimes in software even when
|
||||
* hwaccel is used. Atheros ar5212: fragmented frames and QoS
|
||||
* frames. */
|
||||
if (!rx->fragmented && !wpa_test)
|
||||
if (!(rx->flags & IEEE80211_TXRXD_FRAGMENTED) && !wpa_test)
|
||||
goto remove_mic;
|
||||
}
|
||||
|
||||
@ -173,7 +173,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
|
||||
ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
|
||||
michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
|
||||
if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
|
||||
if (!rx->u.rx.ra_match)
|
||||
if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
|
||||
return TXRX_DROP;
|
||||
|
||||
printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
|
||||
|
||||
Loading…
Reference in New Issue
Block a user