Merge tag 'v4.0-rc1' into patchwork

Linux 34.0-rc1

* tag 'v4.0-rc1': (8947 commits)
  Linux 4.0-rc1
  autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
  procfs: fix race between symlink removals and traversals
  debugfs: leave freeing a symlink body until inode eviction
  Documentation/filesystems/Locking: ->get_sb() is long gone
  trylock_super(): replacement for grab_super_passive()
  fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
  SELinux: Use d_is_positive() rather than testing dentry->d_inode
  Smack: Use d_is_positive() rather than testing dentry->d_inode
  TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
  Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
  Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
  VFS: Split DCACHE_FILE_TYPE into regular and special types
  VFS: Add a fallthrough flag for marking virtual dentries
  VFS: Add a whiteout dentry type
  VFS: Introduce inode-getting helpers for layered/unioned fs environments
  kernel: make READ_ONCE() valid on const arguments
  blk-throttle: check stats_cpu before reading it from sysfs
  ...

1 files changed, 54 insertions, 17 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 683b10f46505..1101563357ea 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -272,7 +272,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	else if (rate && rate->flags & IEEE80211_RATE_ERP_G)
 		channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ;
 	else if (rate)
-		channel_flags |= IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ;
+		channel_flags |= IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ;
 	else
 		channel_flags |= IEEE80211_CHAN_2GHZ;
 	put_unaligned_le16(channel_flags, pos);
@@ -361,9 +361,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 		u16 known = local->hw.radiotap_vht_details;
 
 		rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
-		/* known field - how to handle 80+80? */
-		if (status->vht_flag & RX_VHT_FLAG_80P80MHZ)
-			known &= ~IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH;
 		put_unaligned_le16(known, pos);
 		pos += 2;
 		/* flags */
@@ -378,8 +375,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 		/* bandwidth */
 		if (status->vht_flag & RX_VHT_FLAG_80MHZ)
 			*pos++ = 4;
-		else if (status->vht_flag & RX_VHT_FLAG_80P80MHZ)
-			*pos++ = 0; /* marked not known above */
 		else if (status->vht_flag & RX_VHT_FLAG_160MHZ)
 			*pos++ = 11;
 		else if (status->flag & RX_FLAG_40MHZ)
@@ -652,6 +647,7 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb)
 {
 	struct ieee80211_mgmt *hdr = (struct ieee80211_mgmt *) skb->data;
 	struct ieee80211_mmie *mmie;
+	struct ieee80211_mmie_16 *mmie16;
 
 	if (skb->len < 24 + sizeof(*mmie) || !is_multicast_ether_addr(hdr->da))
 		return -1;
@@ -661,11 +657,18 @@ static int ieee80211_get_mmie_keyidx(struct sk_buff *skb)
 
 	mmie = (struct ieee80211_mmie *)
 		(skb->data + skb->len - sizeof(*mmie));
-	if (mmie->element_id != WLAN_EID_MMIE ||
-	    mmie->length != sizeof(*mmie) - 2)
-		return -1;
-
-	return le16_to_cpu(mmie->key_id);
+	if (mmie->element_id == WLAN_EID_MMIE &&
+	    mmie->length == sizeof(*mmie) - 2)
+		return le16_to_cpu(mmie->key_id);
+
+	mmie16 = (struct ieee80211_mmie_16 *)
+		(skb->data + skb->len - sizeof(*mmie16));
+	if (skb->len >= 24 + sizeof(*mmie16) &&
+	    mmie16->element_id == WLAN_EID_MMIE &&
+	    mmie16->length == sizeof(*mmie16) - 2)
+		return le16_to_cpu(mmie16->key_id);
+
+	return -1;
 }
 
 static int iwl80211_get_cs_keyid(const struct ieee80211_cipher_scheme *cs,
@@ -1655,11 +1658,27 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 		result = ieee80211_crypto_tkip_decrypt(rx);
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
-		result = ieee80211_crypto_ccmp_decrypt(rx);
+		result = ieee80211_crypto_ccmp_decrypt(
+			rx, IEEE80211_CCMP_MIC_LEN);
+		break;
+	case WLAN_CIPHER_SUITE_CCMP_256:
+		result = ieee80211_crypto_ccmp_decrypt(
+			rx, IEEE80211_CCMP_256_MIC_LEN);
 		break;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		result = ieee80211_crypto_aes_cmac_decrypt(rx);
 		break;
+	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+		result = ieee80211_crypto_aes_cmac_256_decrypt(rx);
+		break;
+	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
+	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
+		result = ieee80211_crypto_aes_gmac_decrypt(rx);
+		break;
+	case WLAN_CIPHER_SUITE_GCMP:
+	case WLAN_CIPHER_SUITE_GCMP_256:
+		result = ieee80211_crypto_gcmp_decrypt(rx);
+		break;
 	default:
 		result = ieee80211_crypto_hw_decrypt(rx);
 	}
@@ -1786,7 +1805,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 		/* This is the first fragment of a new frame. */
 		entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
 						 rx->seqno_idx, &(rx->skb));
-		if (rx->key && rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP &&
+		if (rx->key &&
+		    (rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP ||
+		     rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256) &&
 		    ieee80211_has_protected(fc)) {
 			int queue = rx->security_idx;
 			/* Store CCMP PN so that we can verify that the next
@@ -1815,7 +1836,9 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 		int i;
 		u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
 		int queue;
-		if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP)
+		if (!rx->key ||
+		    (rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP &&
+		     rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256))
 			return RX_DROP_UNUSABLE;
 		memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
 		for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
@@ -2314,6 +2337,15 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
 		return RX_DROP_MONITOR;
 
+	if (rx->sta) {
+		/* The seqno index has the same property as needed
+		 * for the rx_msdu field, i.e. it is IEEE80211_NUM_TIDS
+		 * for non-QoS-data frames. Here we know it's a data
+		 * frame, so count MSDUs.
+		 */
+		rx->sta->rx_msdu[rx->seqno_idx]++;
+	}
+
 	/*
 	 * Send unexpected-4addr-frame event to hostapd. For older versions,
 	 * also drop the frame to cooked monitor interfaces.
@@ -2598,7 +2630,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 		case WLAN_HT_ACTION_NOTIFY_CHANWIDTH: {
 			struct ieee80211_supported_band *sband;
 			u8 chanwidth = mgmt->u.action.u.ht_notify_cw.chanwidth;
-			enum ieee80211_sta_rx_bandwidth new_bw;
+			enum ieee80211_sta_rx_bandwidth max_bw, new_bw;
 
 			/* If it doesn't support 40 MHz it can't change ... */
 			if (!(rx->sta->sta.ht_cap.cap &
@@ -2606,13 +2638,18 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 				goto handled;
 
 			if (chanwidth == IEEE80211_HT_CHANWIDTH_20MHZ)
-				new_bw = IEEE80211_STA_RX_BW_20;
+				max_bw = IEEE80211_STA_RX_BW_20;
 			else
-				new_bw = ieee80211_sta_cur_vht_bw(rx->sta);
+				max_bw = ieee80211_sta_cap_rx_bw(rx->sta);
+
+			/* set cur_max_bandwidth and recalc sta bw */
+			rx->sta->cur_max_bandwidth = max_bw;
+			new_bw = ieee80211_sta_cur_vht_bw(rx->sta);
 
 			if (rx->sta->sta.bandwidth == new_bw)
 				goto handled;
 
+			rx->sta->sta.bandwidth = new_bw;
 			sband = rx->local->hw.wiphy->bands[status->band];
 
 			rate_control_rate_update(local, sband, rx->sta,