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Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c88
1 files changed, 42 insertions, 46 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8ba10a48ded4..01eb08527817 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -319,9 +319,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
if (tx->sdata->vif.type == NL80211_IFTYPE_OCB)
return TX_CONTINUE;
- if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
- return TX_CONTINUE;
-
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
return TX_CONTINUE;
@@ -1942,19 +1939,24 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
/* device xmit handlers */
+enum ieee80211_encrypt {
+ ENCRYPT_NO,
+ ENCRYPT_MGMT,
+ ENCRYPT_DATA,
+};
+
static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
- int head_need, bool may_encrypt)
+ int head_need,
+ enum ieee80211_encrypt encrypt)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_hdr *hdr;
bool enc_tailroom;
int tail_need = 0;
- hdr = (struct ieee80211_hdr *) skb->data;
- enc_tailroom = may_encrypt &&
- (sdata->crypto_tx_tailroom_needed_cnt ||
- ieee80211_is_mgmt(hdr->frame_control));
+ enc_tailroom = encrypt == ENCRYPT_MGMT ||
+ (encrypt == ENCRYPT_DATA &&
+ sdata->crypto_tx_tailroom_needed_cnt);
if (enc_tailroom) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
@@ -1985,23 +1987,29 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
int headroom;
- bool may_encrypt;
+ enum ieee80211_encrypt encrypt;
- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
+ if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)
+ encrypt = ENCRYPT_NO;
+ else if (ieee80211_is_mgmt(hdr->frame_control))
+ encrypt = ENCRYPT_MGMT;
+ else
+ encrypt = ENCRYPT_DATA;
headroom = local->tx_headroom;
- if (may_encrypt)
+ if (encrypt != ENCRYPT_NO)
headroom += sdata->encrypt_headroom;
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(sdata, skb, headroom, encrypt)) {
ieee80211_free_txskb(&local->hw, skb);
return;
}
+ /* reload after potential resize */
hdr = (struct ieee80211_hdr *) skb->data;
info->control.vif = &sdata->vif;
@@ -2102,6 +2110,9 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
info->flags |= IEEE80211_TX_CTL_NO_ACK;
if (txflags & IEEE80211_RADIOTAP_F_TX_NOSEQNO)
info->control.flags |= IEEE80211_TX_CTRL_NO_SEQNO;
+ if (txflags & IEEE80211_RADIOTAP_F_TX_ORDER)
+ info->control.flags |=
+ IEEE80211_TX_CTRL_DONT_REORDER;
break;
case IEEE80211_RADIOTAP_RATE:
@@ -2268,11 +2279,13 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
payload[7]);
}
- /*
- * Initialize skb->priority for QoS frames. This is put in the TID field
- * of the frame before passing it to the driver.
+ /* Initialize skb->priority for QoS frames. If the DONT_REORDER flag
+ * is set, stick to the default value for skb->priority to assure
+ * frames injected with this flag are not reordered relative to each
+ * other.
*/
- if (ieee80211_is_data_qos(hdr->frame_control)) {
+ if (ieee80211_is_data_qos(hdr->frame_control) &&
+ !(info->control.flags & IEEE80211_TX_CTRL_DONT_REORDER)) {
u8 *p = ieee80211_get_qos_ctl(hdr);
skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;
}
@@ -2284,8 +2297,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
* we handle as though they are non-injected frames.
* This code here isn't entirely correct, the local MAC address
* isn't always enough to find the interface to use; for proper
- * VLAN/WDS support we will need a different mechanism (which
- * likely isn't going to be monitor interfaces).
+ * VLAN support we have an nl80211-based mechanism.
*
* This is necessary, for example, for old hostapd versions that
* don't use nl80211-based management TX/RX.
@@ -2296,8 +2308,7 @@ netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
if (!ieee80211_sdata_running(tmp_sdata))
continue;
if (tmp_sdata->vif.type == NL80211_IFTYPE_MONITOR ||
- tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
- tmp_sdata->vif.type == NL80211_IFTYPE_WDS)
+ tmp_sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
continue;
if (ether_addr_equal(tmp_sdata->vif.addr, hdr->addr2)) {
sdata = tmp_sdata;
@@ -2391,9 +2402,6 @@ int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
}
sta = sta_info_get_bss(sdata, skb->data);
break;
- case NL80211_IFTYPE_WDS:
- sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
- break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
/* determined much later */
@@ -2569,20 +2577,6 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
hdrlen = 24;
band = chanctx_conf->def.chan->band;
break;
- 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);
- memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 30;
- /*
- * This is the exception! WDS style interfaces are prohibited
- * when channel contexts are in used so this must be valid
- */
- band = local->hw.conf.chandef.chan->band;
- break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
if (!is_multicast_ether_addr(skb->data)) {
@@ -2828,7 +2822,7 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
head_need += sdata->encrypt_headroom;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ if (ieee80211_skb_resize(sdata, skb, head_need, ENCRYPT_DATA)) {
ieee80211_free_txskb(&local->hw, skb);
skb = NULL;
return ERR_PTR(-ENOMEM);
@@ -3502,7 +3496,7 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
if (unlikely(ieee80211_skb_resize(sdata, skb,
max_t(int, extra_head + hw_headroom -
skb_headroom(skb), 0),
- false))) {
+ ENCRYPT_NO))) {
kfree_skb(skb);
return true;
}
@@ -3619,13 +3613,14 @@ begin:
tx.skb = skb;
tx.sdata = vif_to_sdata(info->control.vif);
- if (txq->sta && !(info->flags & IEEE80211_TX_CTL_INJECTED)) {
+ if (txq->sta) {
tx.sta = container_of(txq->sta, struct sta_info, sta);
/*
* Drop unicast frames to unauthorised stations unless they are
- * EAPOL frames from the local station.
+ * injected frames or EAPOL frames from the local station.
*/
- if (unlikely(ieee80211_is_data(hdr->frame_control) &&
+ if (unlikely(!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
+ ieee80211_is_data(hdr->frame_control) &&
!ieee80211_vif_is_mesh(&tx.sdata->vif) &&
tx.sdata->vif.type != NL80211_IFTYPE_OCB &&
!is_multicast_ether_addr(hdr->addr1) &&
@@ -4406,9 +4401,10 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local,
/*
* Transmit all pending packets. Called from tasklet.
*/
-void ieee80211_tx_pending(unsigned long data)
+void ieee80211_tx_pending(struct tasklet_struct *t)
{
- struct ieee80211_local *local = (struct ieee80211_local *)data;
+ struct ieee80211_local *local = from_tasklet(local, t,
+ tx_pending_tasklet);
unsigned long flags;
int i;
bool txok;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 18:24:32 +0000