diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 887fe95b9805..39e864b35083 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1479,6 +1479,9 @@ enum ieee80211_key_flags {
* wants to be given when a frame is transmitted and needs to be
* encrypted in hardware.
* @cipher: The key's cipher suite selector.
+ * @tx_pn: PN used for TX on non-TKIP keys, may be used by the driver
+ * as well if it needs to do software PN assignment by itself
+ * (e.g. due to TSO)
* @flags: key flags, see &enum ieee80211_key_flags.
* @keyidx: the key index (0-3)
* @keylen: key material length
@@ -1491,6 +1494,7 @@ enum ieee80211_key_flags {
* @iv_len: The IV length for this key type
*/
struct ieee80211_key_conf {
+ atomic64_t tx_pn;
u32 cipher;
u8 icv_len;
u8 iv_len;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index bb9f83640b46..02f48c848ef5 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -361,66 +361,25 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
break;
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
+ case WLAN_CIPHER_SUITE_AES_CMAC:
+ case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+ BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
+ offsetof(typeof(kseq), aes_cmac));
+ case WLAN_CIPHER_SUITE_BIP_GMAC_128:
+ case WLAN_CIPHER_SUITE_BIP_GMAC_256:
+ BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
+ offsetof(typeof(kseq), aes_gmac));
+ case WLAN_CIPHER_SUITE_GCMP:
+ case WLAN_CIPHER_SUITE_GCMP_256:
+ BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
+ offsetof(typeof(kseq), gcmp));
+
if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
drv_get_key_seq(sdata->local, key, &kseq);
memcpy(seq, kseq.ccmp.pn, 6);
} else {
- pn64 = atomic64_read(&key->u.ccmp.tx_pn);
- seq[0] = pn64;
- seq[1] = pn64 >> 8;
- seq[2] = pn64 >> 16;
- seq[3] = pn64 >> 24;
- seq[4] = pn64 >> 32;
- seq[5] = pn64 >> 40;
- }
- params.seq = seq;
- params.seq_len = 6;
- break;
- case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
- !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
- drv_get_key_seq(sdata->local, key, &kseq);
- memcpy(seq, kseq.aes_cmac.pn, 6);
- } else {
- pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
- seq[0] = pn64;
- seq[1] = pn64 >> 8;
- seq[2] = pn64 >> 16;
- seq[3] = pn64 >> 24;
- seq[4] = pn64 >> 32;
- seq[5] = pn64 >> 40;
- }
- params.seq = seq;
- params.seq_len = 6;
- break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
- !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
- drv_get_key_seq(sdata->local, key, &kseq);
- memcpy(seq, kseq.aes_gmac.pn, 6);
- } else {
- pn64 = atomic64_read(&key->u.aes_gmac.tx_pn);
- seq[0] = pn64;
- seq[1] = pn64 >> 8;
- seq[2] = pn64 >> 16;
- seq[3] = pn64 >> 24;
- seq[4] = pn64 >> 32;
- seq[5] = pn64 >> 40;
- }
- params.seq = seq;
- params.seq_len = 6;
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
- !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
- drv_get_key_seq(sdata->local, key, &kseq);
- memcpy(seq, kseq.gcmp.pn, 6);
- } else {
- pn64 = atomic64_read(&key->u.gcmp.tx_pn);
+ pn64 = atomic64_read(&key->conf.tx_pn);
seq[0] = pn64;
seq[1] = pn64 >> 8;
seq[2] = pn64 >> 16;
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 71ac1b5f4da5..e82bf1e9d7a8 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -95,28 +95,13 @@ static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
break;
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
- pn = atomic64_read(&key->u.ccmp.tx_pn);
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
- (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
- break;
case WLAN_CIPHER_SUITE_AES_CMAC:
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- pn = atomic64_read(&key->u.aes_cmac.tx_pn);
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
- (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
- break;
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn = atomic64_read(&key->u.aes_gmac.tx_pn);
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
- (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
- break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
- pn = atomic64_read(&key->u.gcmp.tx_pn);
+ pn = atomic64_read(&key->conf.tx_pn);
len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 2e677376c958..9a4a4bfafdc2 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -832,27 +832,19 @@ void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
break;
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
- pn64 = atomic64_read(&key->u.ccmp.tx_pn);
- seq->ccmp.pn[5] = pn64;
- seq->ccmp.pn[4] = pn64 >> 8;
- seq->ccmp.pn[3] = pn64 >> 16;
- seq->ccmp.pn[2] = pn64 >> 24;
- seq->ccmp.pn[1] = pn64 >> 32;
- seq->ccmp.pn[0] = pn64 >> 40;
- break;
case WLAN_CIPHER_SUITE_AES_CMAC:
case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
- seq->ccmp.pn[5] = pn64;
- seq->ccmp.pn[4] = pn64 >> 8;
- seq->ccmp.pn[3] = pn64 >> 16;
- seq->ccmp.pn[2] = pn64 >> 24;
- seq->ccmp.pn[1] = pn64 >> 32;
- seq->ccmp.pn[0] = pn64 >> 40;
- break;
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), aes_cmac));
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn64 = atomic64_read(&key->u.aes_gmac.tx_pn);
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), aes_gmac));
+ case WLAN_CIPHER_SUITE_GCMP:
+ case WLAN_CIPHER_SUITE_GCMP_256:
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), gcmp));
+ pn64 = atomic64_read(&key->conf.tx_pn);
seq->ccmp.pn[5] = pn64;
seq->ccmp.pn[4] = pn64 >> 8;
seq->ccmp.pn[3] = pn64 >> 16;
@@ -860,16 +852,6 @@ void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf,
seq->ccmp.pn[1] = pn64 >> 32;
seq->ccmp.pn[0] = pn64 >> 40;
break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn64 = atomic64_read(&key->u.gcmp.tx_pn);
- seq->gcmp.pn[5] = pn64;
- seq->gcmp.pn[4] = pn64 >> 8;
- seq->gcmp.pn[3] = pn64 >> 16;
- seq->gcmp.pn[2] = pn64 >> 24;
- seq->gcmp.pn[1] = pn64 >> 32;
- seq->gcmp.pn[0] = pn64 >> 40;
- break;
default:
WARN_ON(1);
}
@@ -944,43 +926,25 @@ void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf,
break;
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
+ case WLAN_CIPHER_SUITE_AES_CMAC:
+ case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), aes_cmac));
+ case WLAN_CIPHER_SUITE_BIP_GMAC_128:
+ case WLAN_CIPHER_SUITE_BIP_GMAC_256:
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), aes_gmac));
+ case WLAN_CIPHER_SUITE_GCMP:
+ case WLAN_CIPHER_SUITE_GCMP_256:
+ BUILD_BUG_ON(offsetof(typeof(*seq), ccmp) !=
+ offsetof(typeof(*seq), gcmp));
pn64 = (u64)seq->ccmp.pn[5] |
((u64)seq->ccmp.pn[4] << 8) |
((u64)seq->ccmp.pn[3] << 16) |
((u64)seq->ccmp.pn[2] << 24) |
((u64)seq->ccmp.pn[1] << 32) |
((u64)seq->ccmp.pn[0] << 40);
- atomic64_set(&key->u.ccmp.tx_pn, pn64);
- break;
- case WLAN_CIPHER_SUITE_AES_CMAC:
- case WLAN_CIPHER_SUITE_BIP_CMAC_256:
- pn64 = (u64)seq->aes_cmac.pn[5] |
- ((u64)seq->aes_cmac.pn[4] << 8) |
- ((u64)seq->aes_cmac.pn[3] << 16) |
- ((u64)seq->aes_cmac.pn[2] << 24) |
- ((u64)seq->aes_cmac.pn[1] << 32) |
- ((u64)seq->aes_cmac.pn[0] << 40);
- atomic64_set(&key->u.aes_cmac.tx_pn, pn64);
- break;
- case WLAN_CIPHER_SUITE_BIP_GMAC_128:
- case WLAN_CIPHER_SUITE_BIP_GMAC_256:
- pn64 = (u64)seq->aes_gmac.pn[5] |
- ((u64)seq->aes_gmac.pn[4] << 8) |
- ((u64)seq->aes_gmac.pn[3] << 16) |
- ((u64)seq->aes_gmac.pn[2] << 24) |
- ((u64)seq->aes_gmac.pn[1] << 32) |
- ((u64)seq->aes_gmac.pn[0] << 40);
- atomic64_set(&key->u.aes_gmac.tx_pn, pn64);
- break;
- case WLAN_CIPHER_SUITE_GCMP:
- case WLAN_CIPHER_SUITE_GCMP_256:
- pn64 = (u64)seq->gcmp.pn[5] |
- ((u64)seq->gcmp.pn[4] << 8) |
- ((u64)seq->gcmp.pn[3] << 16) |
- ((u64)seq->gcmp.pn[2] << 24) |
- ((u64)seq->gcmp.pn[1] << 32) |
- ((u64)seq->gcmp.pn[0] << 40);
- atomic64_set(&key->u.gcmp.tx_pn, pn64);
+ atomic64_set(&key->conf.tx_pn, pn64);
break;
default:
WARN_ON(1);
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index df430a618764..ac747e442139 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -77,7 +77,6 @@ struct ieee80211_key {
u32 mic_failures;
} tkip;
struct {
- atomic64_t tx_pn;
/*
* Last received packet number. The first
* IEEE80211_NUM_TIDS counters are used with Data
@@ -89,21 +88,18 @@ struct ieee80211_key {
u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp;
struct {
- atomic64_t tx_pn;
u8 rx_pn[IEEE80211_CMAC_PN_LEN];
struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCMACReplays */
u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
} aes_cmac;
struct {
- atomic64_t tx_pn;
u8 rx_pn[IEEE80211_GMAC_PN_LEN];
struct crypto_aead *tfm;
u32 replays; /* dot11RSNAStatsCMACReplays */
u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
} aes_gmac;
struct {
- atomic64_t tx_pn;
/* Last received packet number. The first
* IEEE80211_NUM_TIDS counters are used with Data
* frames and the last counter is used with Robust
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8df134213adf..dbef1b881b3d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2813,17 +2813,9 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
switch (fast_tx->key->conf.cipher) {
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
- pn = atomic64_inc_return(&fast_tx->key->u.ccmp.tx_pn);
- crypto_hdr[0] = pn;
- crypto_hdr[1] = pn >> 8;
- crypto_hdr[4] = pn >> 16;
- crypto_hdr[5] = pn >> 24;
- crypto_hdr[6] = pn >> 32;
- crypto_hdr[7] = pn >> 40;
- break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
- pn = atomic64_inc_return(&fast_tx->key->u.gcmp.tx_pn);
+ pn = atomic64_inc_return(&fast_tx->key->conf.tx_pn);
crypto_hdr[0] = pn;
crypto_hdr[1] = pn >> 8;
crypto_hdr[4] = pn >> 16;
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 9d63d93c836e..943f7606527e 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -444,7 +444,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb,
hdr = (struct ieee80211_hdr *) pos;
pos += hdrlen;
- pn64 = atomic64_inc_return(&key->u.ccmp.tx_pn);
+ pn64 = atomic64_inc_return(&key->conf.tx_pn);
pn[5] = pn64;
pn[4] = pn64 >> 8;
@@ -670,7 +670,7 @@ static int gcmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
hdr = (struct ieee80211_hdr *)pos;
pos += hdrlen;
- pn64 = atomic64_inc_return(&key->u.gcmp.tx_pn);
+ pn64 = atomic64_inc_return(&key->conf.tx_pn);
pn[5] = pn64;
pn[4] = pn64 >> 8;
@@ -940,7 +940,7 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx)
mmie->key_id = cpu_to_le16(key->conf.keyidx);
/* PN = PN + 1 */
- pn64 = atomic64_inc_return(&key->u.aes_cmac.tx_pn);
+ pn64 = atomic64_inc_return(&key->conf.tx_pn);
bip_ipn_set64(mmie->sequence_number, pn64);
@@ -984,7 +984,7 @@ ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx)
mmie->key_id = cpu_to_le16(key->conf.keyidx);
/* PN = PN + 1 */
- pn64 = atomic64_inc_return(&key->u.aes_cmac.tx_pn);
+ pn64 = atomic64_inc_return(&key->conf.tx_pn);
bip_ipn_set64(mmie->sequence_number, pn64);
@@ -1129,7 +1129,7 @@ ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx)
mmie->key_id = cpu_to_le16(key->conf.keyidx);
/* PN = PN + 1 */
- pn64 = atomic64_inc_return(&key->u.aes_gmac.tx_pn);
+ pn64 = atomic64_inc_return(&key->conf.tx_pn);
bip_ipn_set64(mmie->sequence_number, pn64);