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-rw-r--r--net/mac80211/mlme.c71
1 files changed, 38 insertions, 33 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index edba1d8158f..82d49341eaa 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -88,6 +88,8 @@ MODULE_PARM_DESC(probe_wait_ms,
#define TMR_RUNNING_TIMER 0
#define TMR_RUNNING_CHANSW 1
+#define DEAUTH_DISASSOC_LEN (24 /* hdr */ + 2 /* reason */)
+
/*
* All cfg80211 functions have to be called outside a locked
* section so that they can acquire a lock themselves... This
@@ -613,47 +615,41 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype,
- u16 reason, bool cfg80211_locked,
- bool send_frame)
+ u16 reason, bool send_frame,
+ u8 *frame_buf)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb)
- return;
+ struct ieee80211_mgmt *mgmt = (void *)frame_buf;
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
+ /* build frame */
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
+ mgmt->duration = 0; /* initialize only */
+ mgmt->seq_ctrl = 0; /* initialize only */
memcpy(mgmt->da, bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, bssid, ETH_ALEN);
- mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
- skb_put(skb, 2);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
- if (stype == IEEE80211_STYPE_DEAUTH)
- if (cfg80211_locked)
- __cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
- else
- cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
- else
- if (cfg80211_locked)
- __cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
- else
- cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
- if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
- IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ if (send_frame) {
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ DEAUTH_DISASSOC_LEN);
+ if (!skb)
+ return;
- if (send_frame)
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ /* copy in frame */
+ memcpy(skb_put(skb, DEAUTH_DISASSOC_LEN),
+ mgmt, DEAUTH_DISASSOC_LEN);
+
+ if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
+ IEEE80211_SKB_CB(skb)->flags |=
+ IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
- else
- kfree_skb(skb);
+ }
}
void ieee80211_send_pspoll(struct ieee80211_local *local,
@@ -1675,6 +1671,7 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
u8 bssid[ETH_ALEN];
+ u8 frame_buf[DEAUTH_DISASSOC_LEN];
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated) {
@@ -1697,7 +1694,8 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
- false, true);
+ false, frame_buf);
+ cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
@@ -2696,6 +2694,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ u8 frame_buf[DEAUTH_DISASSOC_LEN];
ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
@@ -2708,7 +2707,8 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
*/
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH,
- reason, false, true);
+ reason, false, frame_buf);
+ cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
@@ -3444,6 +3444,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
bool assoc_bss = false;
+ u8 frame_buf[DEAUTH_DISASSOC_LEN];
mutex_lock(&ifmgd->mtx);
@@ -3463,7 +3464,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
ieee80211_send_deauth_disassoc(sdata, req->bssid,
IEEE80211_STYPE_DEAUTH,
- req->reason_code, true, true);
+ req->reason_code, true, frame_buf);
+ __cfg80211_send_deauth(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
if (assoc_bss)
sta_info_flush(sdata->local, sdata);
@@ -3479,6 +3481,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 bssid[ETH_ALEN];
+ u8 frame_buf[DEAUTH_DISASSOC_LEN];
mutex_lock(&ifmgd->mtx);
@@ -3502,8 +3505,10 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&ifmgd->mtx);
ieee80211_send_deauth_disassoc(sdata, req->bss->bssid,
- IEEE80211_STYPE_DISASSOC, req->reason_code,
- true, !req->local_state_change);
+ IEEE80211_STYPE_DISASSOC,
+ req->reason_code,
+ !req->local_state_change, frame_buf);
+ __cfg80211_send_disassoc(sdata->dev, frame_buf, DEAUTH_DISASSOC_LEN);
sta_info_flush(sdata->local, sdata);
mutex_lock(&sdata->local->mtx);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-15 07:18:37 +0000