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wifi: mac80211: extend IEEE80211_KEY_FLAG_GENERATE_MMIE to other ciphers

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Extend the flag IEEE80211_KEY_FLAG_GENERATE_MMIE to BIP-CMAC-256,
BIP-GMAC-128 and BIP-GMAC-256 for the same reason and in the same
way that the flag was added originally in commit a0b4496a43
("mac80211: add IEEE80211_KEY_FLAG_GENERATE_MMIE to ieee80211_key_flags").

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://msgid.link/20240326003036.15215-1-michael-cy.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michael-CY Lee 2024-03-26 08:30:36 +08:00 committed by Johannes Berg
parent 0e9824e0d5
commit a35b36e6ee
2 changed files with 12 additions and 4 deletions
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4
include/net/mac80211.h
View File

@ -2124,8 +2124,8 @@ static inline bool lockdep_vif_wiphy_mutex_held(struct ieee80211_vif *vif)
* @IEEE80211_KEY_FLAG_GENERATE_MMIC on the same key.
* @IEEE80211_KEY_FLAG_NO_AUTO_TX: Key needs explicit Tx activation.
* @IEEE80211_KEY_FLAG_GENERATE_MMIE: This flag should be set by the driver
* for a AES_CMAC key to indicate that it requires sequence number
* generation only
* for a AES_CMAC or a AES_GMAC key to indicate that it requires sequence
* number generation only
* @IEEE80211_KEY_FLAG_SPP_AMSDU: SPP A-MSDUs can be used with this key
* (set by mac80211 from the sta->spp_amsdu flag)
*/

12
net/mac80211/wpa.c
View File

@ -895,7 +895,8 @@ ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx)
info = IEEE80211_SKB_CB(skb);
if (info->control.hw_key)
if (info->control.hw_key &&
!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIE))
return TX_CONTINUE;
if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie)))
@ -911,6 +912,9 @@ ieee80211_crypto_aes_cmac_256_encrypt(struct ieee80211_tx_data *tx)
bip_ipn_set64(mmie->sequence_number, pn64);
if (info->control.hw_key)
return TX_CONTINUE;
bip_aad(skb, aad);
/* MIC = AES-256-CMAC(IGTK, AAD || Management Frame Body || MMIE, 128)
@ -1040,7 +1044,8 @@ ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx)
info = IEEE80211_SKB_CB(skb);
if (info->control.hw_key)
if (info->control.hw_key &&
!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIE))
return TX_CONTINUE;
if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie)))
@ -1056,6 +1061,9 @@ ieee80211_crypto_aes_gmac_encrypt(struct ieee80211_tx_data *tx)
bip_ipn_set64(mmie->sequence_number, pn64);
if (info->control.hw_key)
return TX_CONTINUE;
bip_aad(skb, aad);
hdr = (struct ieee80211_hdr *)skb->data;