/* misc utils */
-#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- unsigned int hdrlen;
- DECLARE_MAC_BUF(mac);
-
- printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
- if (skb->len < 4) {
- printk("\n");
- return;
- }
-
- hdrlen = ieee80211_hdrlen(hdr->frame_control);
- if (hdrlen > skb->len)
- hdrlen = skb->len;
- if (hdrlen >= 4)
- printk(" FC=0x%04x DUR=0x%04x",
- le16_to_cpu(hdr->frame_control), le16_to_cpu(hdr->duration_id));
- if (hdrlen >= 10)
- printk(" A1=%s", print_mac(mac, hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=%s", print_mac(mac, hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=%s", print_mac(mac, hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=%s", print_mac(mac, hdr->addr4));
- printk("\n");
-}
-#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
-}
-#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-
static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
int next_frag_len)
{
return cpu_to_le16(dur);
}
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
+static int inline is_ieee80211_device(struct ieee80211_local *local,
+ struct net_device *dev)
{
- return (wdev_priv(dev->ieee80211_ptr) ==
- wdev_priv(master->ieee80211_ptr));
+ return local == wdev_priv(dev->ieee80211_ptr);
}
/* tx handlers */
sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (likely(tx->rate_idx < 0)) {
- rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
+ rate_control_get_rate(tx->sdata, sband, tx->sta,
+ tx->skb, &rsel);
+ if (tx->sta)
+ tx->sta->last_txrate_idx = rsel.rate_idx;
tx->rate_idx = rsel.rate_idx;
if (unlikely(rsel.probe_idx >= 0)) {
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
- info->control.alt_retry_rate_idx = tx->rate_idx;
+ info->control.retries[0].rate_idx = tx->rate_idx;
+ info->control.retries[0].limit = tx->local->hw.max_altrate_tries;
tx->rate_idx = rsel.probe_idx;
- } else
- info->control.alt_retry_rate_idx = -1;
+ } else if (info->control.retries[0].limit == 0)
+ info->control.retries[0].rate_idx = -1;
if (unlikely(tx->rate_idx < 0))
return TX_DROP;
} else
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
if (tx->sdata->bss_conf.use_cts_prot &&
(tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
* frames.
* TODO: The last fragment could still use multiple retry
* rates. */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
}
/* Use CTS protection for unicast frames sent using extended rates if
int idx;
/* Do not use multiple retry rates when using RTS/CTS */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
/* Use min(data rate, max base rate) as CTS/RTS rate */
rate = &sband->bitrates[tx->rate_idx];
u8 *qc;
int tid;
- /* only for injected frames */
+ /*
+ * Packet injection may want to control the sequence
+ * number, if we have no matching interface then we
+ * neither assign one ourselves nor ask the driver to.
+ */
+ if (unlikely(!info->control.vif))
+ return TX_CONTINUE;
+
if (unlikely(ieee80211_is_ctl(hdr->frame_control)))
return TX_CONTINUE;
sband = tx->local->hw.wiphy->bands[tx->channel->band];
skb->do_not_encrypt = 1;
- info->flags |= IEEE80211_TX_CTL_INJECTED;
tx->flags &= ~IEEE80211_TX_FRAGMENTED;
/*
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->vif.type == NL80211_IFTYPE_MONITOR)) {
+ if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
return TX_DROP;
/*
* NB: @tx is uninitialised when passed in here
*/
-static int ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev)
+static int ieee80211_tx_prepare(struct ieee80211_local *local,
+ struct ieee80211_tx_data *tx,
+ struct sk_buff *skb)
{
struct net_device *dev;
dev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
+ if (unlikely(dev && !is_ieee80211_device(local, dev))) {
dev_put(dev);
dev = NULL;
}
return IEEE80211_TX_AGAIN;
info = IEEE80211_SKB_CB(skb);
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver", skb);
ret = local->ops->tx(local_to_hw(local), skb);
if (ret)
return IEEE80211_TX_AGAIN;
~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
}
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver",
- tx->extra_frag[i]);
ret = local->ops->tx(local_to_hw(local),
tx->extra_frag[i]);
if (ret)
return 0;
}
-int ieee80211_master_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
+int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
+ struct ieee80211_master_priv *mpriv = netdev_priv(dev);
+ struct ieee80211_local *local = mpriv->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct net_device *odev = NULL;
struct ieee80211_sub_if_data *osdata;
int headroom;
bool may_encrypt;
+ enum {
+ NOT_MONITOR,
+ FOUND_SDATA,
+ UNKNOWN_ADDRESS,
+ } monitor_iface = NOT_MONITOR;
int ret;
if (skb->iif)
odev = dev_get_by_index(&init_net, skb->iif);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
+ if (unlikely(odev && !is_ieee80211_device(local, odev))) {
dev_put(odev);
odev = NULL;
}
if (ieee80211_vif_is_mesh(&osdata->vif) &&
ieee80211_is_data(hdr->frame_control)) {
- if (ieee80211_is_data(hdr->frame_control)) {
- if (is_multicast_ether_addr(hdr->addr3))
- memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
- else
- if (mesh_nexthop_lookup(skb, osdata))
- return 0;
- if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
- IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
- fwded_frames);
+ if (is_multicast_ether_addr(hdr->addr3))
+ memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
+ else
+ if (mesh_nexthop_lookup(skb, osdata))
+ return 0;
+ if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
+ IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
+ fwded_frames);
+ } else if (unlikely(osdata->vif.type == NL80211_IFTYPE_MONITOR)) {
+ struct ieee80211_sub_if_data *sdata;
+ int hdrlen;
+ u16 len_rthdr;
+
+ info->flags |= IEEE80211_TX_CTL_INJECTED;
+ monitor_iface = UNKNOWN_ADDRESS;
+
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
+ hdr = (struct ieee80211_hdr *)skb->data + len_rthdr;
+ hdrlen = ieee80211_hdrlen(hdr->frame_control);
+
+ /* check the header is complete in the frame */
+ if (likely(skb->len >= len_rthdr + hdrlen)) {
+ /*
+ * We process outgoing injected frames that have a
+ * local address we handle as though they are our
+ * own frames.
+ * This code here isn't entirely correct, the local
+ * MAC address is not necessarily enough to find
+ * the interface to use; for that proper VLAN/WDS
+ * support we will need a different mechanism.
+ */
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces,
+ list) {
+ if (!netif_running(sdata->dev))
+ continue;
+ if (compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr2)) {
+ dev_hold(sdata->dev);
+ dev_put(odev);
+ osdata = sdata;
+ odev = osdata->dev;
+ skb->iif = sdata->dev->ifindex;
+ monitor_iface = FOUND_SDATA;
+ break;
+ }
+ }
+ rcu_read_unlock();
}
}
return 0;
}
- info->control.vif = &osdata->vif;
+ if (osdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+ osdata = container_of(osdata->bss,
+ struct ieee80211_sub_if_data,
+ u.ap);
+ if (likely(monitor_iface != UNKNOWN_ADDRESS))
+ info->control.vif = &osdata->vif;
ret = ieee80211_tx(odev, skb);
dev_put(odev);
int ieee80211_subif_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
int ret = 1, head_need;
u16 ethertype, hdrlen, meshhdrlen = 0;
__le16 fc;
struct sta_info *sta;
u32 sta_flags = 0;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(skb->len < ETH_HLEN)) {
ret = 0;
goto fail;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
- /* RA TA DA SA */
- memset(hdr.addr1, 0, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
/* Do not send frames with mesh_ttl == 0 */
sdata->u.mesh.mshstats.dropped_frames_ttl++;
ret = 0;
goto fail;
}
- meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata);
+ memset(&mesh_hdr, 0, sizeof(mesh_hdr));
+
+ if (compare_ether_addr(dev->dev_addr,
+ skb->data + ETH_ALEN) == 0) {
+ /* RA TA DA SA */
+ memset(hdr.addr1, 0, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata);
+ } else {
+ /* packet from other interface */
+ struct mesh_path *mppath;
+
+ memset(hdr.addr1, 0, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr4, dev->dev_addr, ETH_ALEN);
+
+ if (is_multicast_ether_addr(skb->data))
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ else {
+ rcu_read_lock();
+ mppath = mpp_path_lookup(skb->data, sdata);
+ if (mppath)
+ memcpy(hdr.addr3, mppath->mpp, ETH_ALEN);
+ else
+ memset(hdr.addr3, 0xff, ETH_ALEN);
+ rcu_read_unlock();
+ }
+
+ mesh_hdr.flags |= MESH_FLAGS_AE_A5_A6;
+ mesh_hdr.ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
+ put_unaligned(cpu_to_le32(sdata->u.mesh.mesh_seqnum), &mesh_hdr.seqnum);
+ memcpy(mesh_hdr.eaddr1, skb->data, ETH_ALEN);
+ memcpy(mesh_hdr.eaddr2, skb->data + ETH_ALEN, ETH_ALEN);
+ sdata->u.mesh.mesh_seqnum++;
+ meshhdrlen = 18;
+ }
hdrlen = 30;
break;
#endif
struct rate_selection rsel;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
- int *num_beacons;
enum ieee80211_band band = local->hw.conf.channel->band;
sband = local->hw.wiphy->bands[band];
if (beacon->tail)
memcpy(skb_put(skb, beacon->tail_len),
beacon->tail, beacon->tail_len);
-
- num_beacons = &ap->num_beacons;
} else
goto out;
} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_BEACON);
- num_beacons = &ifsta->num_beacons;
-#ifdef CONFIG_MAC80211_MESH
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
struct ieee80211_mgmt *mgmt;
u8 *pos;
*pos++ = 0x0;
mesh_mgmt_ies_add(skb, sdata);
-
- num_beacons = &sdata->u.mesh.num_beacons;
-#endif
} else {
WARN_ON(1);
goto out;
skb->do_not_encrypt = 1;
info->band = band;
- rate_control_get_rate(local->mdev, sband, skb, &rsel);
+ rate_control_get_rate(sdata, sband, NULL, skb, &rsel);
if (unlikely(rsel.rate_idx < 0)) {
if (net_ratelimit()) {
info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
info->control.retry_limit = 1;
- (*num_beacons)++;
out:
rcu_read_unlock();
return skb;
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
- if (!ieee80211_tx_prepare(&tx, skb, local->mdev))
+ if (!ieee80211_tx_prepare(local, &tx, skb))
break;
dev_kfree_skb_any(skb);
}