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-rw-r--r--net/mac80211/tx.c187
1 files changed, 94 insertions, 93 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c413d4836af..20d683641b4 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -38,43 +38,6 @@
/* 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)
{
@@ -111,7 +74,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
hdr = (struct ieee80211_hdr *)tx->skb->data;
if (ieee80211_is_ctl(hdr->frame_control)) {
/* TODO: These control frames are not currently sent by
- * 80211.o, but should they be implemented, this function
+ * mac80211, but should they be implemented, this function
* needs to be updated to support duration field calculation.
*
* RTS: time needed to transmit pending data/mgmt frame plus
@@ -153,7 +116,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
if (r->bitrate > txrate->bitrate)
break;
- if (tx->sdata->basic_rates & BIT(i))
+ if (tx->sdata->bss_conf.basic_rates & BIT(i))
rate = r->bitrate;
switch (sband->band) {
@@ -222,11 +185,11 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED))
return TX_CONTINUE;
- if (unlikely(tx->local->sta_sw_scanning) &&
+ if (unlikely(tx->local->sw_scanning) &&
!ieee80211_is_probe_req(hdr->frame_control))
return TX_DROP;
- if (tx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+ if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
return TX_CONTINUE;
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
@@ -236,7 +199,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (likely(tx->flags & IEEE80211_TX_UNICAST)) {
if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ tx->sdata->vif.type != NL80211_IFTYPE_ADHOC &&
ieee80211_is_data(hdr->frame_control))) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
DECLARE_MAC_BUF(mac);
@@ -250,7 +213,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
} else {
if (unlikely(ieee80211_is_data(hdr->frame_control) &&
tx->local->num_sta == 0 &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) {
+ tx->sdata->vif.type != NL80211_IFTYPE_ADHOC)) {
/*
* No associated STAs - no need to send multicast
* frames.
@@ -281,7 +244,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
struct ieee80211_if_ap *ap;
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ if (sdata->vif.type != NL80211_IFTYPE_AP)
continue;
ap = &sdata->u.ap;
skb = skb_dequeue(&ap->ps_bc_buf);
@@ -381,7 +344,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
"before %d)\n",
- print_mac(mac, sta->addr), sta->aid,
+ print_mac(mac, sta->sta.addr), sta->sta.aid,
skb_queue_len(&sta->ps_tx_buf));
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
@@ -392,7 +355,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: STA %s TX "
"buffer full - dropping oldest frame\n",
- tx->dev->name, print_mac(mac, sta->addr));
+ tx->dev->name, print_mac(mac, sta->sta.addr));
}
#endif
dev_kfree_skb(old);
@@ -411,7 +374,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
else if (unlikely(test_sta_flags(sta, WLAN_STA_PS))) {
printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll "
"set -> send frame\n", tx->dev->name,
- print_mac(mac, sta->addr));
+ print_mac(mac, sta->sta.addr));
}
#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
clear_sta_flags(sta, WLAN_STA_PSPOLL);
@@ -485,6 +448,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
if (likely(tx->rate_idx < 0)) {
rate_control_get_rate(tx->dev, sband, 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;
@@ -528,7 +493,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (tx->sta)
- info->control.aid = tx->sta->aid;
+ info->control.sta = &tx->sta->sta;
if (!info->control.retry_limit) {
if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -594,7 +559,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
for (idx = 0; idx < sband->n_bitrates; idx++) {
if (sband->bitrates[idx].bitrate > rate->bitrate)
continue;
- if (tx->sdata->basic_rates & BIT(idx) &&
+ if (tx->sdata->bss_conf.basic_rates & BIT(idx) &&
(baserate < 0 ||
(sband->bitrates[baserate].bitrate
< sband->bitrates[idx].bitrate)))
@@ -608,7 +573,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
}
if (tx->sta)
- info->control.aid = tx->sta->aid;
+ info->control.sta = &tx->sta->sta;
return TX_CONTINUE;
}
@@ -622,7 +587,14 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
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;
@@ -847,7 +819,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
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;
/*
@@ -979,7 +950,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
+ if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) {
if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
return TX_DROP;
@@ -1060,8 +1031,6 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
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;
@@ -1091,9 +1060,6 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
~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)
@@ -1298,6 +1264,11 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
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)
@@ -1330,9 +1301,53 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
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.sta,
+ 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;
+ struct ieee80211_local *local = osdata->local;
+ struct ieee80211_hdr *hdr;
+ 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();
+ }
}
may_encrypt = !skb->do_not_encrypt;
@@ -1349,7 +1364,12 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
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);
@@ -1457,8 +1477,8 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
/* DA BSSID SA */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1466,7 +1486,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
hdrlen = 24;
break;
- case IEEE80211_IF_TYPE_WDS:
+ case NL80211_IFTYPE_WDS:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
/* RA TA DA SA */
memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
@@ -1476,16 +1496,16 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
hdrlen = 30;
break;
#ifdef CONFIG_MAC80211_MESH
- case IEEE80211_IF_TYPE_MESH_POINT:
+ 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.sta.mshcfg.dot11MeshTTL) {
+ if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
/* Do not send frames with mesh_ttl == 0 */
- sdata->u.sta.mshstats.dropped_frames_ttl++;
+ sdata->u.mesh.mshstats.dropped_frames_ttl++;
ret = 0;
goto fail;
}
@@ -1493,7 +1513,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
hdrlen = 30;
break;
#endif
- case IEEE80211_IF_TYPE_STA:
+ case NL80211_IFTYPE_STATION:
fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
/* BSSID SA DA */
memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
@@ -1501,7 +1521,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
memcpy(hdr.addr3, skb->data, ETH_ALEN);
hdrlen = 24;
break;
- case IEEE80211_IF_TYPE_IBSS:
+ case NL80211_IFTYPE_ADHOC:
/* DA SA BSSID */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
@@ -1580,19 +1600,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
nh_pos -= skip_header_bytes;
h_pos -= skip_header_bytes;
- /* TODO: implement support for fragments so that there is no need to
- * reallocate and copy payload; it might be enough to support one
- * extra fragment that would be copied in the beginning of the frame
- * data.. anyway, it would be nice to include this into skb structure
- * somehow
- *
- * There are few options for this:
- * use skb->cb as an extra space for 802.11 header
- * allocate new buffer if not enough headroom
- * make sure that there is enough headroom in every skb by increasing
- * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
- * alloc_skb() (net/core/skbuff.c)
- */
head_need = hdrlen + encaps_len + meshhdrlen - skb_headroom(skb);
/*
@@ -1815,10 +1822,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct rate_selection rsel;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
- struct ieee80211_mgmt *mgmt;
- int *num_beacons;
enum ieee80211_band band = local->hw.conf.channel->band;
- u8 *pos;
sband = local->hw.wiphy->bands[band];
@@ -1827,7 +1831,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
sdata = vif_to_sdata(vif);
bdev = sdata->dev;
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == NL80211_IFTYPE_AP) {
ap = &sdata->u.ap;
beacon = rcu_dereference(ap->beacon);
if (ap && beacon) {
@@ -1865,11 +1869,9 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
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 == IEEE80211_IF_TYPE_IBSS) {
+ } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
struct ieee80211_hdr *hdr;
ifsta = &sdata->u.sta;
@@ -1884,8 +1886,10 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_BEACON);
- num_beacons = &ifsta->num_beacons;
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos;
+
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + 400);
if (!skb)
@@ -1909,8 +1913,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
*pos++ = 0x0;
mesh_mgmt_ies_add(skb, sdata);
-
- num_beacons = &sdata->u.sta.num_beacons;
} else {
WARN_ON(1);
goto out;
@@ -1947,7 +1949,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
info->control.retry_limit = 1;
- (*num_beacons)++;
out:
rcu_read_unlock();
return skb;
@@ -2009,7 +2010,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
rcu_read_lock();
beacon = rcu_dereference(bss->beacon);
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon || !beacon->head)
+ if (sdata->vif.type != NL80211_IFTYPE_AP || !beacon || !beacon->head)
goto out;
if (bss->dtim_count != 0)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-08 19:52:14 +0000