+++ /dev/null
-From: Felix Fietkau <nbd@nbd.name>
-Date: Wed, 22 Mar 2023 10:17:49 +0100
-Subject: [PATCH] wifi: mt76: ignore key disable commands
-
-This helps avoid cleartext leakage of already queued or powersave buffered
-packets, when a reassoc triggers the key deletion.
-
-Cc: stable@vger.kernel.org
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/mt7603/main.c
-+++ b/mt7603/main.c
-@@ -512,15 +512,15 @@ mt7603_set_key(struct ieee80211_hw *hw,
- !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
- return -EOPNOTSUPP;
-
-- if (cmd == SET_KEY) {
-- key->hw_key_idx = wcid->idx;
-- wcid->hw_key_idx = idx;
-- } else {
-+ if (cmd != SET_KEY) {
- if (idx == wcid->hw_key_idx)
- wcid->hw_key_idx = -1;
-
-- key = NULL;
-+ return 0;
- }
-+
-+ key->hw_key_idx = wcid->idx;
-+ wcid->hw_key_idx = idx;
- mt76_wcid_key_setup(&dev->mt76, wcid, key);
-
- return mt7603_wtbl_set_key(dev, wcid->idx, key);
---- a/mt7615/mac.c
-+++ b/mt7615/mac.c
-@@ -1178,8 +1178,7 @@ EXPORT_SYMBOL_GPL(mt7615_mac_set_rates);
- static int
- mt7615_mac_wtbl_update_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
- struct ieee80211_key_conf *key,
-- enum mt76_cipher_type cipher, u16 cipher_mask,
-- enum set_key_cmd cmd)
-+ enum mt76_cipher_type cipher, u16 cipher_mask)
- {
- u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx) + 30 * 4;
- u8 data[32] = {};
-@@ -1188,27 +1187,18 @@ mt7615_mac_wtbl_update_key(struct mt7615
- return -EINVAL;
-
- mt76_rr_copy(dev, addr, data, sizeof(data));
-- if (cmd == SET_KEY) {
-- if (cipher == MT_CIPHER_TKIP) {
-- /* Rx/Tx MIC keys are swapped */
-- memcpy(data, key->key, 16);
-- memcpy(data + 16, key->key + 24, 8);
-- memcpy(data + 24, key->key + 16, 8);
-- } else {
-- if (cipher_mask == BIT(cipher))
-- memcpy(data, key->key, key->keylen);
-- else if (cipher != MT_CIPHER_BIP_CMAC_128)
-- memcpy(data, key->key, 16);
-- if (cipher == MT_CIPHER_BIP_CMAC_128)
-- memcpy(data + 16, key->key, 16);
-- }
-+ if (cipher == MT_CIPHER_TKIP) {
-+ /* Rx/Tx MIC keys are swapped */
-+ memcpy(data, key->key, 16);
-+ memcpy(data + 16, key->key + 24, 8);
-+ memcpy(data + 24, key->key + 16, 8);
- } else {
-+ if (cipher_mask == BIT(cipher))
-+ memcpy(data, key->key, key->keylen);
-+ else if (cipher != MT_CIPHER_BIP_CMAC_128)
-+ memcpy(data, key->key, 16);
- if (cipher == MT_CIPHER_BIP_CMAC_128)
-- memset(data + 16, 0, 16);
-- else if (cipher_mask)
-- memset(data, 0, 16);
-- if (!cipher_mask)
-- memset(data, 0, sizeof(data));
-+ memcpy(data + 16, key->key, 16);
- }
-
- mt76_wr_copy(dev, addr, data, sizeof(data));
-@@ -1219,7 +1209,7 @@ mt7615_mac_wtbl_update_key(struct mt7615
- static int
- mt7615_mac_wtbl_update_pk(struct mt7615_dev *dev, struct mt76_wcid *wcid,
- enum mt76_cipher_type cipher, u16 cipher_mask,
-- int keyidx, enum set_key_cmd cmd)
-+ int keyidx)
- {
- u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx), w0, w1;
-
-@@ -1238,9 +1228,7 @@ mt7615_mac_wtbl_update_pk(struct mt7615_
- else
- w0 &= ~MT_WTBL_W0_RX_IK_VALID;
-
-- if (cmd == SET_KEY &&
-- (cipher != MT_CIPHER_BIP_CMAC_128 ||
-- cipher_mask == BIT(cipher))) {
-+ if (cipher != MT_CIPHER_BIP_CMAC_128 || cipher_mask == BIT(cipher)) {
- w0 &= ~MT_WTBL_W0_KEY_IDX;
- w0 |= FIELD_PREP(MT_WTBL_W0_KEY_IDX, keyidx);
- }
-@@ -1257,19 +1245,10 @@ mt7615_mac_wtbl_update_pk(struct mt7615_
-
- static void
- mt7615_mac_wtbl_update_cipher(struct mt7615_dev *dev, struct mt76_wcid *wcid,
-- enum mt76_cipher_type cipher, u16 cipher_mask,
-- enum set_key_cmd cmd)
-+ enum mt76_cipher_type cipher, u16 cipher_mask)
- {
- u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx);
-
-- if (!cipher_mask) {
-- mt76_clear(dev, addr + 2 * 4, MT_WTBL_W2_KEY_TYPE);
-- return;
-- }
--
-- if (cmd != SET_KEY)
-- return;
--
- if (cipher == MT_CIPHER_BIP_CMAC_128 &&
- cipher_mask & ~BIT(MT_CIPHER_BIP_CMAC_128))
- return;
-@@ -1280,8 +1259,7 @@ mt7615_mac_wtbl_update_cipher(struct mt7
-
- int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
- struct mt76_wcid *wcid,
-- struct ieee80211_key_conf *key,
-- enum set_key_cmd cmd)
-+ struct ieee80211_key_conf *key)
- {
- enum mt76_cipher_type cipher;
- u16 cipher_mask = wcid->cipher;
-@@ -1291,19 +1269,14 @@ int __mt7615_mac_wtbl_set_key(struct mt7
- if (cipher == MT_CIPHER_NONE)
- return -EOPNOTSUPP;
-
-- if (cmd == SET_KEY)
-- cipher_mask |= BIT(cipher);
-- else
-- cipher_mask &= ~BIT(cipher);
--
-- mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, cipher_mask, cmd);
-- err = mt7615_mac_wtbl_update_key(dev, wcid, key, cipher, cipher_mask,
-- cmd);
-+ cipher_mask |= BIT(cipher);
-+ mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, cipher_mask);
-+ err = mt7615_mac_wtbl_update_key(dev, wcid, key, cipher, cipher_mask);
- if (err < 0)
- return err;
-
- err = mt7615_mac_wtbl_update_pk(dev, wcid, cipher, cipher_mask,
-- key->keyidx, cmd);
-+ key->keyidx);
- if (err < 0)
- return err;
-
-@@ -1314,13 +1287,12 @@ int __mt7615_mac_wtbl_set_key(struct mt7
-
- int mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
- struct mt76_wcid *wcid,
-- struct ieee80211_key_conf *key,
-- enum set_key_cmd cmd)
-+ struct ieee80211_key_conf *key)
- {
- int err;
-
- spin_lock_bh(&dev->mt76.lock);
-- err = __mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
-+ err = __mt7615_mac_wtbl_set_key(dev, wcid, key);
- spin_unlock_bh(&dev->mt76.lock);
-
- return err;
---- a/mt7615/main.c
-+++ b/mt7615/main.c
-@@ -391,18 +391,17 @@ static int mt7615_set_key(struct ieee802
-
- if (cmd == SET_KEY)
- *wcid_keyidx = idx;
-- else if (idx == *wcid_keyidx)
-- *wcid_keyidx = -1;
-- else
-+ else {
-+ if (idx == *wcid_keyidx)
-+ *wcid_keyidx = -1;
- goto out;
-+ }
-
-- mt76_wcid_key_setup(&dev->mt76, wcid,
-- cmd == SET_KEY ? key : NULL);
--
-+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
- if (mt76_is_mmio(&dev->mt76))
-- err = mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
-+ err = mt7615_mac_wtbl_set_key(dev, wcid, key);
- else
-- err = __mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
-+ err = __mt7615_mac_wtbl_set_key(dev, wcid, key);
-
- out:
- mt7615_mutex_release(dev);
---- a/mt7615/mt7615.h
-+++ b/mt7615/mt7615.h
-@@ -482,11 +482,9 @@ int mt7615_mac_write_txwi(struct mt7615_
- void mt7615_mac_set_timing(struct mt7615_phy *phy);
- int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
- struct mt76_wcid *wcid,
-- struct ieee80211_key_conf *key,
-- enum set_key_cmd cmd);
-+ struct ieee80211_key_conf *key);
- int mt7615_mac_wtbl_set_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
-- struct ieee80211_key_conf *key,
-- enum set_key_cmd cmd);
-+ struct ieee80211_key_conf *key);
- void mt7615_mac_reset_work(struct work_struct *work);
- u32 mt7615_mac_get_sta_tid_sn(struct mt7615_dev *dev, int wcid, u8 tid);
-
---- a/mt76x02_util.c
-+++ b/mt76x02_util.c
-@@ -455,20 +455,20 @@ int mt76x02_set_key(struct ieee80211_hw
- msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL;
- wcid = msta ? &msta->wcid : &mvif->group_wcid;
-
-- if (cmd == SET_KEY) {
-- key->hw_key_idx = wcid->idx;
-- wcid->hw_key_idx = idx;
-- if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
-- key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
-- wcid->sw_iv = true;
-- }
-- } else {
-+ if (cmd != SET_KEY) {
- if (idx == wcid->hw_key_idx) {
- wcid->hw_key_idx = -1;
- wcid->sw_iv = false;
- }
-
-- key = NULL;
-+ return 0;
-+ }
-+
-+ key->hw_key_idx = wcid->idx;
-+ wcid->hw_key_idx = idx;
-+ if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
-+ key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
-+ wcid->sw_iv = true;
- }
- mt76_wcid_key_setup(&dev->mt76, wcid, key);
-
---- a/mt7915/main.c
-+++ b/mt7915/main.c
-@@ -387,16 +387,15 @@ static int mt7915_set_key(struct ieee802
- mt7915_mcu_add_bss_info(phy, vif, true);
- }
-
-- if (cmd == SET_KEY)
-+ if (cmd == SET_KEY) {
- *wcid_keyidx = idx;
-- else if (idx == *wcid_keyidx)
-- *wcid_keyidx = -1;
-- else
-+ } else {
-+ if (idx == *wcid_keyidx)
-+ *wcid_keyidx = -1;
- goto out;
-+ }
-
-- mt76_wcid_key_setup(&dev->mt76, wcid,
-- cmd == SET_KEY ? key : NULL);
--
-+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
- err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
- key, MCU_EXT_CMD(STA_REC_UPDATE),
- &msta->wcid, cmd);
---- a/mt7921/main.c
-+++ b/mt7921/main.c
-@@ -463,16 +463,15 @@ static int mt7921_set_key(struct ieee802
-
- mt7921_mutex_acquire(dev);
-
-- if (cmd == SET_KEY)
-+ if (cmd == SET_KEY) {
- *wcid_keyidx = idx;
-- else if (idx == *wcid_keyidx)
-- *wcid_keyidx = -1;
-- else
-+ } else {
-+ if (idx == *wcid_keyidx)
-+ *wcid_keyidx = -1;
- goto out;
-+ }
-
-- mt76_wcid_key_setup(&dev->mt76, wcid,
-- cmd == SET_KEY ? key : NULL);
--
-+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
- err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
- key, MCU_UNI_CMD(STA_REC_UPDATE),
- &msta->wcid, cmd);
projects / openwrt / openwrt.git / commitdiff