@@ -1939,8 +1939,7 @@ static void ath12k_dp_rx_h_csum_offload(struct sk_buff *msdu,
CHECKSUM_NONE : CHECKSUM_UNNECESSARY;
}
-static int ath12k_dp_rx_crypto_mic_len(struct ath12k *ar,
- enum hal_encrypt_type enctype)
+int ath12k_dp_rx_crypto_mic_len(struct ath12k *ar, enum hal_encrypt_type enctype)
{
switch (enctype) {
case HAL_ENCRYPT_TYPE_OPEN:
@@ -163,4 +163,7 @@ int ath12k_dp_htt_tlv_iter(struct ath12k_base *ab, const void *ptr, size_t len,
void *data);
void ath12k_dp_rx_h_fetch_info(struct ath12k_base *ab, struct hal_rx_desc *rx_desc,
struct ath12k_dp_rx_info *rx_info);
+
+int ath12k_dp_rx_crypto_mic_len(struct ath12k *ar, enum hal_encrypt_type enctype);
+
#endif /* ATH12K_DP_RX_H */
@@ -4719,8 +4719,8 @@ static int ath12k_install_key(struct ath12k_link_vif *arvif,
switch (key->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
+ case WLAN_CIPHER_SUITE_CCMP_256:
arg.key_cipher = WMI_CIPHER_AES_CCM;
- /* TODO: Re-check if flag is valid */
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
break;
case WLAN_CIPHER_SUITE_TKIP:
@@ -4728,12 +4728,10 @@ static int ath12k_install_key(struct ath12k_link_vif *arvif,
arg.key_txmic_len = 8;
arg.key_rxmic_len = 8;
break;
- case WLAN_CIPHER_SUITE_CCMP_256:
- arg.key_cipher = WMI_CIPHER_AES_CCM;
- break;
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
arg.key_cipher = WMI_CIPHER_AES_GCM;
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
break;
default:
ath12k_warn(ar->ab, "cipher %d is not supported\n", key->cipher);
@@ -7153,6 +7151,8 @@ static int ath12k_mac_mgmt_tx_wmi(struct ath12k *ar, struct ath12k_link_vif *arv
struct ath12k_base *ab = ar->ab;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info;
+ enum hal_encrypt_type enctype;
+ unsigned int mic_len;
dma_addr_t paddr;
int buf_id;
int ret;
@@ -7168,12 +7168,16 @@ static int ath12k_mac_mgmt_tx_wmi(struct ath12k *ar, struct ath12k_link_vif *arv
return -ENOSPC;
info = IEEE80211_SKB_CB(skb);
- if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP)) {
+ if ((ATH12K_SKB_CB(skb)->flags & ATH12K_SKB_CIPHER_SET) &&
+ !(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP)) {
if ((ieee80211_is_action(hdr->frame_control) ||
ieee80211_is_deauth(hdr->frame_control) ||
ieee80211_is_disassoc(hdr->frame_control)) &&
ieee80211_has_protected(hdr->frame_control)) {
- skb_put(skb, IEEE80211_CCMP_MIC_LEN);
+ enctype =
+ ath12k_dp_tx_get_encrypt_type(ATH12K_SKB_CB(skb)->cipher);
+ mic_len = ath12k_dp_rx_crypto_mic_len(ar, enctype);
+ skb_put(skb, mic_len);
}
}
Currently for CCMP256, GCMP128 and GCMP256 ciphers, in ath12k_install_key() IEEE80211_KEY_FLAG_GENERATE_IV_MGMT is not set and in ath12k_mac_mgmt_tx_wmi() a length of IEEE80211_CCMP_MIC_LEN is reserved for all ciphers. This results in unexpected drop of protected management frames in case either of above 3 ciphers is used. The reason is, without IEEE80211_KEY_FLAG_GENERATE_IV_MGMT set, mac80211 will not generate CCMP/GCMP headers in TX frame for ath12k. Also MIC length reserved is wrong and such frames are dropped by hardware. Fix this by setting IEEE80211_KEY_FLAG_GENERATE_IV_MGMT flag for above ciphers and by reserving proper MIC length for those ciphers. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> --- drivers/net/wireless/ath/ath12k/dp_rx.c | 3 +-- drivers/net/wireless/ath/ath12k/dp_rx.h | 3 +++ drivers/net/wireless/ath/ath12k/mac.c | 16 ++++++++++------ 3 files changed, 14 insertions(+), 8 deletions(-)