const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
int hdrlen;
+ DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
if (skb->len < 4) {
printk(" FC=0x%04x DUR=0x%04x",
fc, le16_to_cpu(hdr->duration_id));
if (hdrlen >= 10)
- printk(" A1=" MAC_FMT, MAC_ARG(hdr->addr1));
+ printk(" A1=%s", print_mac(mac, hdr->addr1));
if (hdrlen >= 16)
- printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
+ printk(" A2=%s", print_mac(mac, hdr->addr2));
if (hdrlen >= 24)
- printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
+ printk(" A3=%s", print_mac(mac, hdr->addr3));
if (hdrlen >= 30)
- printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
+ printk(" A4=%s", print_mac(mac, hdr->addr4));
printk("\n");
}
#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
* to closest integer */
dur = ieee80211_frame_duration(local, 10, rate, erp,
- tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+ tx->sdata->bss_conf.use_short_preamble);
if (next_frag_len) {
/* Frame is fragmented: duration increases with time needed to
/* next fragment */
dur += ieee80211_frame_duration(local, next_frag_len,
txrate->rate, erp,
- tx->sdata->flags &
- IEEE80211_SDATA_SHORT_PREAMBLE);
+ tx->sdata->bss_conf.use_short_preamble);
}
return dur;
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
u32 sta_flags;
- if (unlikely(tx->local->sta_scanning != 0) &&
+ if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
+ return TXRX_CONTINUE;
+
+ if (unlikely(tx->local->sta_sw_scanning) &&
((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
(tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
return TXRX_DROP;
if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
(tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ DECLARE_MAC_BUF(mac);
printk(KERN_DEBUG "%s: dropped data frame to not "
- "associated station " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(hdr->addr1));
+ "associated station %s\n",
+ tx->dev->name, print_mac(mac, hdr->addr1));
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
return TXRX_DROP;
} else {
if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
tx->local->num_sta == 0 &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
+ tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) {
/*
* No associated STAs - no need to send multicast
* frames.
return TXRX_CONTINUE;
}
- if (unlikely(!tx->u.tx.mgmt_interface && tx->sdata->ieee802_1x &&
- !(sta_flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
- " (unauthorized port)\n", tx->dev->name,
- MAC_ARG(hdr->addr1));
-#endif
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
- return TXRX_DROP;
- }
-
return TXRX_CONTINUE;
}
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
- read_lock(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
+ /*
+ * virtual interfaces are protected by RCU
+ */
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
struct ieee80211_if_ap *ap;
if (sdata->dev == local->mdev ||
- sdata->type != IEEE80211_IF_TYPE_AP)
+ sdata->vif.type != IEEE80211_IF_TYPE_AP)
continue;
ap = &sdata->u.ap;
skb = skb_dequeue(&ap->ps_bc_buf);
}
total += skb_queue_len(&ap->ps_bc_buf);
}
- read_unlock(&local->sub_if_lock);
+ rcu_read_unlock();
read_lock_bh(&local->sta_lock);
list_for_each_entry(sta, &local->sta_list, list) {
local->total_ps_buffered = total;
printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
- local->mdev->name, purged);
+ wiphy_name(local->hw.wiphy), purged);
}
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
{
- /* broadcast/multicast frame */
- /* If any of the associated stations is in power save mode,
- * the frame is buffered to be sent after DTIM beacon frame */
- if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
- tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
- tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
- !(tx->fc & IEEE80211_FCTL_ORDER)) {
+ /*
+ * broadcast/multicast frame
+ *
+ * If any of the associated stations is in power save mode,
+ * the frame is buffered to be sent after DTIM beacon frame.
+ * This is done either by the hardware or us.
+ */
+
+ /* not AP/IBSS or ordered frame */
+ if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
+ return TXRX_CONTINUE;
+
+ /* no stations in PS mode */
+ if (!atomic_read(&tx->sdata->bss->num_sta_ps))
+ return TXRX_CONTINUE;
+
+ /* buffered in mac80211 */
+ if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) {
if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
purge_old_ps_buffers(tx->local);
if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
return TXRX_QUEUED;
}
+ /* buffered in hardware */
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM;
+
return TXRX_CONTINUE;
}
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
{
struct sta_info *sta = tx->sta;
+ DECLARE_MAC_BUF(mac);
if (unlikely(!sta ||
((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
struct ieee80211_tx_packet_data *pkt_data;
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
+ printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
"before %d)\n",
- MAC_ARG(sta->addr), sta->aid,
+ print_mac(mac, sta->addr), sta->aid,
skb_queue_len(&sta->ps_tx_buf));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
sta->flags |= WLAN_STA_TIM;
if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " TX "
+ printk(KERN_DEBUG "%s: STA %s TX "
"buffer full - dropping oldest frame\n",
- tx->dev->name, MAC_ARG(sta->addr));
+ tx->dev->name, print_mac(mac, sta->addr));
}
dev_kfree_skb(old);
} else
}
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
else if (unlikely(sta->flags & WLAN_STA_PS)) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
+ printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll "
"set -> send frame\n", tx->dev->name,
- MAC_ARG(sta->addr));
+ print_mac(mac, sta->addr));
}
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
sta->pspoll = 0;
return TXRX_CONTINUE;
}
-
static ieee80211_txrx_result
ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
{
return ieee80211_tx_h_multicast_ps_buf(tx);
}
-
-
-
static ieee80211_txrx_result
ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
{
struct ieee80211_key *key;
+ u16 fc = tx->fc;
if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
tx->key = NULL;
else if ((key = rcu_dereference(tx->sdata->default_key)))
tx->key = key;
else if (tx->sdata->drop_unencrypted &&
- !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
+ !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) &&
+ !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) {
I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
return TXRX_DROP;
- } else {
+ } else
tx->key = NULL;
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- }
if (tx->key) {
+ u16 ftype, stype;
+
tx->key->tx_rx_count++;
- if (unlikely(tx->local->key_tx_rx_threshold &&
- tx->key->tx_rx_count >
- tx->local->key_tx_rx_threshold)) {
- ieee80211_key_threshold_notify(tx->dev, tx->key,
- tx->sta);
+ /* TODO: add threshold stuff again */
+
+ switch (tx->key->conf.alg) {
+ case ALG_WEP:
+ ftype = fc & IEEE80211_FCTL_FTYPE;
+ stype = fc & IEEE80211_FCTL_STYPE;
+
+ if (ftype == IEEE80211_FTYPE_MGMT &&
+ stype == IEEE80211_STYPE_AUTH)
+ break;
+ case ALG_TKIP:
+ case ALG_CCMP:
+ if (!WLAN_FC_DATA_PRESENT(fc))
+ tx->key = NULL;
+ break;
}
}
+ if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+
return TXRX_CONTINUE;
}
return TXRX_DROP;
}
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
-{
- if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
- if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
- return -1;
- } else {
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
- if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
- return -1;
- }
- }
- return 0;
-}
-
static ieee80211_txrx_result
-ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!tx->key || tx->key->conf.alg != ALG_WEP ||
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
+ if (!tx->key)
return TXRX_CONTINUE;
- tx->u.tx.control->iv_len = WEP_IV_LEN;
- tx->u.tx.control->icv_len = WEP_ICV_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if (wep_encrypt_skb(tx, tx->skb) < 0) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
- return TXRX_DROP;
+ switch (tx->key->conf.alg) {
+ case ALG_WEP:
+ return ieee80211_crypto_wep_encrypt(tx);
+ case ALG_TKIP:
+ return ieee80211_crypto_tkip_encrypt(tx);
+ case ALG_CCMP:
+ return ieee80211_crypto_ccmp_encrypt(tx);
}
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
- I802_DEBUG_INC(tx->local->
- tx_handlers_drop_wep);
- return TXRX_DROP;
- }
- }
- }
-
- return TXRX_CONTINUE;
+ /* not reached */
+ WARN_ON(1);
+ return TXRX_DROP;
}
static ieee80211_txrx_result
ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
{
- struct rate_control_extra extra;
-
- memset(&extra, 0, sizeof(extra));
- extra.mode = tx->u.tx.mode;
- extra.mgmt_data = tx->sdata &&
- tx->sdata->type == IEEE80211_IF_TYPE_MGMT;
- extra.ethertype = tx->ethertype;
-
- tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev, tx->skb,
- &extra);
- if (unlikely(extra.probe != NULL)) {
- tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE;
- tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
- tx->u.tx.rate = extra.probe;
- } else {
+ struct rate_selection rsel;
+
+ if (likely(!tx->u.tx.rate)) {
+ rate_control_get_rate(tx->dev, tx->u.tx.mode, tx->skb, &rsel);
+ tx->u.tx.rate = rsel.rate;
+ if (unlikely(rsel.probe != NULL)) {
+ tx->u.tx.control->flags |=
+ IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
+ tx->u.tx.rate = rsel.probe;
+ } else
+ tx->u.tx.control->alt_retry_rate = -1;
+
+ if (!tx->u.tx.rate)
+ return TXRX_DROP;
+ } else
tx->u.tx.control->alt_retry_rate = -1;
- }
- if (!tx->u.tx.rate)
- return TXRX_DROP;
+
if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
+ tx->sdata->bss_conf.use_cts_prot &&
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
- if (extra.probe)
+ if (rsel.probe)
tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
else
tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.rate = extra.nonerp;
- tx->u.tx.control->rate = extra.nonerp;
+ tx->u.tx.rate = rsel.nonerp;
+ tx->u.tx.control->rate = rsel.nonerp;
tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
} else {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
struct ieee80211_tx_control *control = tx->u.tx.control;
struct ieee80211_hw_mode *mode = tx->u.tx.mode;
- if (!is_multicast_ether_addr(hdr->addr1)) {
- if (tx->skb->len + FCS_LEN > tx->local->rts_threshold &&
- tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD) {
- control->flags |= IEEE80211_TXCTL_USE_RTS_CTS;
- control->flags |= IEEE80211_TXCTL_LONG_RETRY_LIMIT;
- control->retry_limit =
- tx->local->long_retry_limit;
+ if (!control->retry_limit) {
+ if (!is_multicast_ether_addr(hdr->addr1)) {
+ if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
+ && tx->local->rts_threshold <
+ IEEE80211_MAX_RTS_THRESHOLD) {
+ control->flags |=
+ IEEE80211_TXCTL_USE_RTS_CTS;
+ control->flags |=
+ IEEE80211_TXCTL_LONG_RETRY_LIMIT;
+ control->retry_limit =
+ tx->local->long_retry_limit;
+ } else {
+ control->retry_limit =
+ tx->local->short_retry_limit;
+ }
} else {
- control->retry_limit =
- tx->local->short_retry_limit;
+ control->retry_limit = 1;
}
- } else {
- control->retry_limit = 1;
}
if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
if (mode->mode == MODE_IEEE80211G &&
(tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
(tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ tx->sdata->bss_conf.use_cts_prot &&
!(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
* available on the network at the current point in time. */
if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
(tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
- (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ tx->sdata->bss_conf.use_short_preamble &&
(!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
}
}
}
- /*
- * Tell hardware to not encrypt when we had sw crypto.
- * Because we use the same flag to internally indicate that
- * no (software) encryption should be done, we have to set it
- * after all crypto handlers.
- */
- if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-
return TXRX_CONTINUE;
}
ieee80211_tx_h_select_key,
ieee80211_tx_h_michael_mic_add,
ieee80211_tx_h_fragment,
- ieee80211_tx_h_tkip_encrypt,
- ieee80211_tx_h_ccmp_encrypt,
- ieee80211_tx_h_wep_encrypt,
+ ieee80211_tx_h_encrypt,
ieee80211_tx_h_rate_ctrl,
ieee80211_tx_h_misc,
ieee80211_tx_h_load_stats,
* with Radiotap Header -- only called for monitor mode interface
*/
static ieee80211_txrx_result
-__ieee80211_parse_tx_radiotap(
- struct ieee80211_txrx_data *tx,
- struct sk_buff *skb, struct ieee80211_tx_control *control)
+__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb)
{
/*
* this is the moment to interpret and discard the radiotap header that
(struct ieee80211_radiotap_header *) skb->data;
struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
+ struct ieee80211_tx_control *control = tx->u.tx.control;
- /*
- * default control situation for all injected packets
- * FIXME: this does not suit all usage cases, expand to allow control
- */
-
- control->retry_limit = 1; /* no retry */
- control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
- IEEE80211_TXCTL_USE_CTS_PROTECT);
- control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT |
- IEEE80211_TXCTL_NO_ACK;
- control->antenna_sel_tx = 0; /* default to default antenna */
+ control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
/*
* for every radiotap entry that is present
for (i = 0; i < mode->num_rates; i++) {
struct ieee80211_rate *r = &mode->rates[i];
- if (r->rate > target_rate)
- continue;
-
- control->rate = r;
-
- if (r->flags & IEEE80211_RATE_PREAMBLE2)
- control->tx_rate = r->val2;
- else
- control->tx_rate = r->val;
-
- /* end on exact match */
- if (r->rate == target_rate)
- i = mode->num_rates;
+ if (r->rate == target_rate) {
+ tx->u.tx.rate = r;
+ break;
+ }
}
break;
skb_trim(skb, skb->len - FCS_LEN);
}
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
+ control->flags &=
+ ~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
break;
+ /*
+ * Please update the file
+ * Documentation/networking/mac80211-injection.txt
+ * when parsing new fields here.
+ */
+
default:
break;
}
return TXRX_CONTINUE;
}
-static ieee80211_txrx_result inline
+/*
+ * initialises @tx
+ */
+static ieee80211_txrx_result
__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
struct sk_buff *skb,
struct net_device *dev,
struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_hdr *hdr;
struct ieee80211_sub_if_data *sdata;
- ieee80211_txrx_result res = TXRX_CONTINUE;
int hdrlen;
tx->dev = dev; /* use original interface */
tx->local = local;
tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
+ tx->u.tx.control = control;
/*
- * set defaults for things that can be set by
- * injected radiotap headers
+ * Set this flag (used below to indicate "automatic fragmentation"),
+ * it will be cleared/left by radiotap as desired.
*/
- control->power_level = local->hw.conf.power_level;
- control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) {
- if (__ieee80211_parse_tx_radiotap(tx, skb, control) ==
- TXRX_DROP) {
+ if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
+ if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
return TXRX_DROP;
- }
+
/*
- * we removed the radiotap header after this point,
- * we filled control with what we could use
- * set to the actual ieee header now
+ * __ieee80211_parse_tx_radiotap has now removed
+ * the radiotap header that was present and pre-filled
+ * 'tx' with tx control information.
*/
- hdr = (struct ieee80211_hdr *) skb->data;
- res = TXRX_QUEUED; /* indication it was monitor packet */
}
+ hdr = (struct ieee80211_hdr *) skb->data;
+
tx->sta = sta_info_get(local, hdr->addr1);
tx->fc = le16_to_cpu(hdr->frame_control);
- tx->u.tx.control = control;
+
if (is_multicast_ether_addr(hdr->addr1)) {
tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
control->flags |= IEEE80211_TXCTL_NO_ACK;
tx->flags |= IEEE80211_TXRXD_TXUNICAST;
control->flags &= ~IEEE80211_TXCTL_NO_ACK;
}
- if (local->fragmentation_threshold < IEEE80211_MAX_FRAG_THRESHOLD &&
- (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- skb->len + FCS_LEN > local->fragmentation_threshold &&
- !local->ops->set_frag_threshold)
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
- else
- tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+
+ if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+ if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+ skb->len + FCS_LEN > local->fragmentation_threshold &&
+ !local->ops->set_frag_threshold)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+ else
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+ }
+
if (!tx->sta)
control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
else if (tx->sta->clear_dst_mask) {
control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
tx->sta->clear_dst_mask = 0;
}
+
hdrlen = ieee80211_get_hdrlen(tx->fc);
if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
}
control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
- return res;
+ return TXRX_CONTINUE;
}
-/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
- * finished with it. */
-static int inline ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev,
- struct ieee80211_tx_control *control)
+/*
+ * NB: @tx is uninitialised when passed in here
+ */
+static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb,
+ struct net_device *mdev,
+ struct ieee80211_tx_control *control)
{
struct ieee80211_tx_packet_data *pkt_data;
struct net_device *dev;
}
if (unlikely(!dev))
return -ENODEV;
+ /* initialises tx with control */
__ieee80211_tx_prepare(tx, skb, dev, control);
+ dev_put(dev);
return 0;
}
return IEEE80211_TX_AGAIN;
}
if (skb) {
- ieee80211_dump_frame(local->mdev->name, "TX to low-level driver", skb);
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
+ "TX to low-level driver", skb);
ret = local->ops->tx(local_to_hw(local), skb, control);
if (ret)
return IEEE80211_TX_AGAIN;
~IEEE80211_TXCTL_RATE_CTRL_PROBE;
}
- ieee80211_dump_frame(local->mdev->name,
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
"TX to low-level driver",
tx->u.tx.extra_frag[i]);
ret = local->ops->tx(local_to_hw(local),
}
static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_tx_control *control, int mgmt)
+ struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sta_info *sta;
return 0;
}
+ /* initialises tx */
res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
if (res_prepare == TXRX_DROP) {
rcu_read_lock();
sta = tx.sta;
- tx.u.tx.mgmt_interface = mgmt;
tx.u.tx.mode = local->hw.conf.mode;
- if (res_prepare == TXRX_QUEUED) { /* if it was an injected packet */
- res = TXRX_CONTINUE;
- } else {
- for (handler = local->tx_handlers; *handler != NULL;
- handler++) {
- res = (*handler)(&tx);
- if (res != TXRX_CONTINUE)
- break;
- }
+ for (handler = local->tx_handlers; *handler != NULL;
+ handler++) {
+ res = (*handler)(&tx);
+ if (res != TXRX_CONTINUE)
+ break;
}
skb = tx.skb; /* handlers are allowed to change skb */
}
}
- control.ifindex = odev->ifindex;
- control.type = osdata->type;
+ control.vif = &osdata->vif;
+ control.type = osdata->vif.type;
if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
control.flags |= IEEE80211_TXCTL_REQUEUE;
+ if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME)
+ control.flags |= IEEE80211_TXCTL_EAPOL_FRAME;
control.queue = pkt_data->queue;
- ret = ieee80211_tx(odev, skb, &control,
- control.type == IEEE80211_IF_TYPE_MGMT);
+ ret = ieee80211_tx(odev, skb, &control);
dev_put(odev);
return ret;
int encaps_len, skip_header_bytes;
int nh_pos, h_pos;
struct sta_info *sta;
+ u32 sta_flags = 0;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(skb->len < ETH_HLEN)) {
/* convert Ethernet header to proper 802.11 header (based on
* operation mode) */
ethertype = (skb->data[12] << 8) | skb->data[13];
- /* TODO: handling for 802.1x authorized/unauthorized port */
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_AP:
case IEEE80211_IF_TYPE_VLAN:
fc |= IEEE80211_FCTL_FROMDS;
goto fail;
}
- /* receiver is QoS enabled, use a QoS type frame */
sta = sta_info_get(local, hdr.addr1);
if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
+ sta_flags = sta->flags;
sta_info_put(sta);
}
+ /* receiver is QoS enabled, use a QoS type frame */
+ if (sta_flags & WLAN_STA_WME) {
+ fc |= IEEE80211_STYPE_QOS_DATA;
+ hdrlen += 2;
+ }
+
+ /*
+ * If port access control is enabled, drop frames to unauthorised
+ * stations unless they are EAPOL frames from the local station.
+ */
+ if (unlikely(sdata->ieee802_1x_pac &&
+ !(sta_flags & WLAN_STA_AUTHORIZED) &&
+ !(ethertype == ETH_P_PAE &&
+ compare_ether_addr(dev->dev_addr,
+ skb->data + ETH_ALEN) == 0))) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ DECLARE_MAC_BUF(mac);
+
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped frame to %s"
+ " (unauthorized port)\n", dev->name,
+ print_mac(mac, hdr.addr1));
+#endif
+
+ I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
+
+ ret = 0;
+ goto fail;
+ }
+
hdr.frame_control = cpu_to_le16(fc);
hdr.duration_id = 0;
hdr.seq_ctrl = 0;
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
pkt_data->ifindex = dev->ifindex;
- if (sdata->type == IEEE80211_IF_TYPE_MGMT)
- pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
+ if (ethertype == ETH_P_PAE)
+ pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
skb->dev = local->mdev;
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
/* Update skb pointers to various headers since this modified frame
* is going to go through Linux networking code that may potentially
return ret;
}
-/*
- * This is the transmit routine for the 802.11 type interfaces
- * called by upper layers of the linux networking
- * stack when it has a frame to transmit
- */
-int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb->len < 10) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (skb_headroom(skb) < sdata->local->tx_headroom) {
- if (pskb_expand_head(skb, sdata->local->tx_headroom,
- 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return 0;
- }
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
- if (sdata->type == IEEE80211_IF_TYPE_MGMT)
- pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
-
- skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
- skb->dev = sdata->local->mdev;
-
- /*
- * We're using the protocol field of the the frame control header
- * to request TX callback for hostapd. BIT(1) is checked.
- */
- if ((fc & BIT(1)) == BIT(1)) {
- pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
- fc &= ~BIT(1);
- hdr->frame_control = cpu_to_le16(fc);
- }
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
-
- dev_queue_xmit(skb);
-
- return 0;
-}
-
/* helper functions for pending packets for when queues are stopped */
void ieee80211_clear_tx_pending(struct ieee80211_local *local)
static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
struct ieee80211_if_ap *bss,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ struct beacon_data *beacon)
{
u8 *pos, *tim;
int aid0 = 0;
IEEE80211_MAX_AID+1);
if (bss->dtim_count == 0)
- bss->dtim_count = bss->dtim_period - 1;
+ bss->dtim_count = beacon->dtim_period - 1;
else
bss->dtim_count--;
*pos++ = WLAN_EID_TIM;
*pos++ = 4;
*pos++ = bss->dtim_count;
- *pos++ = bss->dtim_period;
+ *pos++ = beacon->dtim_period;
if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
aid0 = 1;
read_unlock_bh(&local->sta_lock);
}
-struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = hw_to_local(hw);
struct net_device *bdev;
struct ieee80211_sub_if_data *sdata = NULL;
struct ieee80211_if_ap *ap = NULL;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *b_head, *b_tail;
- int bh_len, bt_len;
-
- bdev = dev_get_by_index(&init_net, if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- ap = &sdata->u.ap;
- dev_put(bdev);
- }
+ struct rate_selection rsel;
+ struct beacon_data *beacon;
- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
- !ap->beacon_head) {
+ rcu_read_lock();
+
+ sdata = vif_to_sdata(vif);
+ bdev = sdata->dev;
+ ap = &sdata->u.ap;
+
+ beacon = rcu_dereference(ap->beacon);
+
+ if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for idx=%d "
- "(%s)\n", if_id, bdev ? bdev->name : "N/A");
+ printk(KERN_DEBUG "no beacon data avail for %s\n",
+ bdev->name);
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- return NULL;
+ skb = NULL;
+ goto out;
}
- /* Assume we are generating the normal beacon locally */
- b_head = ap->beacon_head;
- b_tail = ap->beacon_tail;
- bh_len = ap->beacon_head_len;
- bt_len = ap->beacon_tail_len;
-
- skb = dev_alloc_skb(local->tx_headroom +
- bh_len + bt_len + 256 /* maximum TIM len */);
+ /* headroom, head length, tail length and maximum TIM length */
+ skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
+ beacon->tail_len + 256);
if (!skb)
- return NULL;
+ goto out;
skb_reserve(skb, local->tx_headroom);
- memcpy(skb_put(skb, bh_len), b_head, bh_len);
+ memcpy(skb_put(skb, beacon->head_len), beacon->head,
+ beacon->head_len);
ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
- ieee80211_beacon_add_tim(local, ap, skb);
+ ieee80211_beacon_add_tim(local, ap, skb, beacon);
- if (b_tail) {
- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
- }
+ if (beacon->tail)
+ memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
+ beacon->tail_len);
if (control) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
-
- rate = rate_control_get_rate(local, local->mdev, skb, &extra);
- if (!rate) {
+ rate_control_get_rate(local->mdev, local->oper_hw_mode, skb,
+ &rsel);
+ if (!rsel.rate) {
if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
- "found\n", local->mdev->name);
+ printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
+ "no rate found\n",
+ wiphy_name(local->hw.wiphy));
}
dev_kfree_skb(skb);
- return NULL;
+ skb = NULL;
+ goto out;
}
+ control->vif = vif;
control->tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
+ (sdata->bss_conf.use_short_preamble &&
+ (rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ rsel.rate->val2 : rsel.rate->val;
control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
control->power_level = local->hw.conf.power_level;
control->flags |= IEEE80211_TXCTL_NO_ACK;
}
ap->num_beacons++;
+
+ out:
+ rcu_read_unlock();
return skb;
}
EXPORT_SYMBOL(ieee80211_beacon_get);
-void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
const struct ieee80211_tx_control *frame_txctl,
struct ieee80211_rts *rts)
fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
rts->frame_control = cpu_to_le16(fctl);
- rts->duration = ieee80211_rts_duration(hw, if_id, frame_len, frame_txctl);
+ rts->duration = ieee80211_rts_duration(hw, vif, frame_len,
+ frame_txctl);
memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
}
EXPORT_SYMBOL(ieee80211_rts_get);
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
const struct ieee80211_tx_control *frame_txctl,
struct ieee80211_cts *cts)
fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
cts->frame_control = cpu_to_le16(fctl);
- cts->duration = ieee80211_ctstoself_duration(hw, if_id, frame_len, frame_txctl);
+ cts->duration = ieee80211_ctstoself_duration(hw, vif,
+ frame_len, frame_txctl);
memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
}
EXPORT_SYMBOL(ieee80211_ctstoself_get);
struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = hw_to_local(hw);
struct net_device *bdev;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_ap *bss = NULL;
+ struct beacon_data *beacon;
- bdev = dev_get_by_index(&init_net, if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- bss = &sdata->u.ap;
- dev_put(bdev);
- }
- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
+ sdata = vif_to_sdata(vif);
+ bdev = sdata->dev;
+
+
+ if (!bss)
+ return NULL;
+
+ rcu_read_lock();
+ beacon = rcu_dereference(bss->beacon);
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon ||
+ !beacon->head) {
+ rcu_read_unlock();
return NULL;
+ }
+ rcu_read_unlock();
if (bss->dtim_count != 0)
return NULL; /* send buffered bc/mc only after DTIM beacon */
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
- if (ieee80211_tx_prepare(&tx, skb, local->mdev, control) == 0)
+ if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
break;
dev_kfree_skb_any(skb);
}
sta = tx.sta;
tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
+ tx.u.tx.mode = local->hw.conf.mode;
for (handler = local->tx_handlers; *handler != NULL; handler++) {
res = (*handler)(&tx);
if (res == TXRX_DROP || res == TXRX_QUEUED)
break;
}
- dev_put(tx.dev);
skb = tx.skb; /* handlers are allowed to change skb */
if (res == TXRX_DROP) {
projects / firefly-linux-kernel-4.4.55.git / blobdiff