mac80211: add a struct to hold tkip context

index 699d97b..17d0656 100644
@@ -256,8 +256,8 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 	case ALG_TKIP:
 		params.cipher = WLAN_CIPHER_SUITE_TKIP;
 
-		iv32 = key->u.tkip.iv32;
-		iv16 = key->u.tkip.iv16;
+		iv32 = key->u.tkip.tx.iv32;
+		iv16 = key->u.tkip.tx.iv16;
 
 		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 		    sdata->local->ops->get_tkip_seq)

index 879e721..c13b08b 100644
@@ -97,8 +97,8 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 		break;
 	case ALG_TKIP:
 		len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
-				key->u.tkip.iv32,
-				key->u.tkip.iv16);
+				key->u.tkip.tx.iv32,
+				key->u.tkip.tx.iv16);
 		break;
 	case ALG_CCMP:
 		tpn = key->u.ccmp.tx_pn;

@@ -128,8 +128,8 @@ static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 		for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
 			p += scnprintf(p, sizeof(buf)+buf-p,
 				       "%08x %04x\n",
-				       key->u.tkip.iv32_rx[i],
-				       key->u.tkip.iv16_rx[i]);
+				       key->u.tkip.rx[i].iv32,
+				       key->u.tkip.rx[i].iv16);
 		len = p - buf;
 		break;
 	case ALG_CCMP:

index f52c3df..a0f774a 100644
@@ -69,6 +69,13 @@ enum ieee80211_internal_key_flags {
 	KEY_FLAG_TODO_ADD_DEBUGFS	= BIT(5),
 };
 
+struct tkip_ctx {
+	u32 iv32;
+	u16 iv16;
+	u16 p1k[5];
+	int initialized;
+};
+
 struct ieee80211_key {
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;

@@ -85,16 +92,10 @@ struct ieee80211_key {
 	union {
 		struct {
 			/* last used TSC */
-			u32 iv32;
-			u16 iv16;
-			u16 p1k[5];
-			int tx_initialized;
+			struct tkip_ctx tx;
 
 			/* last received RSC */
-			u32 iv32_rx[NUM_RX_DATA_QUEUES];
-			u16 iv16_rx[NUM_RX_DATA_QUEUES];
-			u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
-			int rx_initialized[NUM_RX_DATA_QUEUES];
+			struct tkip_ctx rx[NUM_RX_DATA_QUEUES];
 		} tkip;
 		struct {
 			u8 tx_pn[6];

129 lines not on this page · raw message

index 45709ad..fbd9299 100644
@@ -176,8 +176,8 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
 	skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
 
 	/* update IV in key information to be able to detect replays */
-	rx->key->u.tkip.iv32_rx[rx->queue] = rx->tkip_iv32;
-	rx->key->u.tkip.iv16_rx[rx->queue] = rx->tkip_iv16;
+	rx->key->u.tkip.rx[rx->queue].iv32 = rx->tkip_iv32;
+	rx->key->u.tkip.rx[rx->queue].iv16 = rx->tkip_iv16;
 
 	return RX_CONTINUE;
 }

@@ -214,19 +214,19 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx,
 	pos += hdrlen;
 
 	/* Increase IV for the frame */
-	key->u.tkip.iv16++;
-	if (key->u.tkip.iv16 == 0)
-		key->u.tkip.iv32++;
+	key->u.tkip.tx.iv16++;
+	if (key->u.tkip.tx.iv16 == 0)
+		key->u.tkip.tx.iv32++;
 
 	if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
 		hdr = (struct ieee80211_hdr *)skb->data;
 
 		/* hwaccel - with preallocated room for IV */
 		ieee80211_tkip_add_iv(pos, key,
-				      (u8) (key->u.tkip.iv16 >> 8),
-				      (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
+				      (u8) (key->u.tkip.tx.iv16 >> 8),
+				      (u8) (((key->u.tkip.tx.iv16 >> 8) | 0x20) &
 					    0x7f),
-				      (u8) key->u.tkip.iv16);
+				      (u8) key->u.tkip.tx.iv16);
 
 		tx->control->key_idx = tx->key->conf.hw_key_idx;
 		return 0;