#include <linux/skbuff.h>
#include <linux/etherdevice.h>
#include <linux/bitmap.h>
+#include <linux/rcupdate.h>
+#include <net/net_namespace.h>
#include <net/ieee80211_radiotap.h>
#include <net/cfg80211.h>
#include <net/mac80211.h>
static ieee80211_txrx_result
ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
{
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
+ struct ieee80211_key *key;
if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
tx->key = NULL;
- else if (tx->sta && tx->sta->key)
- tx->key = tx->sta->key;
- else if (tx->sdata->default_key)
- tx->key = tx->sdata->default_key;
+ else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
+ tx->key = key;
+ 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))) {
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) {
tx->key->tx_rx_count++;
return -1;
} else {
tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- if (tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- if (ieee80211_wep_add_iv(tx->local, skb, tx->key) ==
- NULL)
+ if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
+ if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
return -1;
}
}
}
}
+ /*
+ * 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;
}
* 1 usec = 1/8 * (1080 / 10) = 13.5 */
if (mode->mode == MODE_IEEE80211A ||
- mode->mode == MODE_ATHEROS_TURBO ||
- mode->mode == MODE_ATHEROS_TURBOG ||
(mode->mode == MODE_IEEE80211G &&
tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
hdrtime = CHAN_UTIL_HDR_SHORT;
*/
control->retry_limit = 1; /* no retry */
- control->key_idx = HW_KEY_IDX_INVALID;
control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
IEEE80211_TXCTL_USE_CTS_PROTECT);
control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT |
tx->dev = dev; /* use original interface */
tx->local = local;
tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- tx->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
/*
* set defaults for things that can be set by
res = TXRX_QUEUED; /* indication it was monitor packet */
}
+ 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;
struct net_device *dev;
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- dev = dev_get_by_index(pkt_data->ifindex);
+ dev = dev_get_by_index(&init_net, pkt_data->ifindex);
if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
dev_put(dev);
dev = NULL;
return 0;
}
+ /*
+ * key references are protected using RCU and this requires that
+ * we are in a read-site RCU section during receive processing
+ */
+ rcu_read_lock();
+
sta = tx.sta;
tx.u.tx.mgmt_interface = mgmt;
tx.u.tx.mode = local->hw.conf.mode;
if (unlikely(res == TXRX_QUEUED)) {
I802_DEBUG_INC(local->tx_handlers_queued);
+ rcu_read_unlock();
return 0;
}
store->last_frag_rate_ctrl_probe =
!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
}
+ rcu_read_unlock();
return 0;
drop:
if (tx.u.tx.extra_frag[i])
dev_kfree_skb(tx.u.tx.extra_frag[i]);
kfree(tx.u.tx.extra_frag);
+ rcu_read_unlock();
return 0;
}
memset(&control, 0, sizeof(struct ieee80211_tx_control));
if (pkt_data->ifindex)
- odev = dev_get_by_index(pkt_data->ifindex);
+ odev = dev_get_by_index(&init_net, pkt_data->ifindex);
if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
dev_put(odev);
odev = NULL;
nh_pos += encaps_len;
h_pos += encaps_len;
}
- memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
+
+ if (fc & IEEE80211_STYPE_QOS_DATA) {
+ __le16 *qos_control;
+
+ qos_control = (__le16*) skb_push(skb, 2);
+ memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2);
+ /*
+ * Maybe we could actually set some fields here, for now just
+ * initialise to zero to indicate no special operation.
+ */
+ *qos_control = 0;
+ } else
+ memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
+
nh_pos += hdrlen;
h_pos += hdrlen;
pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
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
if (!(fc & IEEE80211_FCTL_PROTECTED))
pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
dev_queue_xmit(skb);
u8 *b_head, *b_tail;
int bh_len, bt_len;
- bdev = dev_get_by_index(if_id);
+ bdev = dev_get_by_index(&init_net, if_id);
if (bdev) {
sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
ap = &sdata->u.ap;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_ap *bss = NULL;
- bdev = dev_get_by_index(if_id);
+ bdev = dev_get_by_index(&init_net, if_id);
if (bdev) {
sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
bss = &sdata->u.ap;
}
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);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff