From: Max Stepanov <max.stepanov@xxxxxxxxx>
This patch fixes a bug in security. Enables CCMP HW encryption with
aggregations.
Signed-off-by: Max Stepanov <max.stepanov@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-4965-commands.h | 4 ++++
drivers/net/wireless/iwlwifi/iwl4965-base.c | 2 ++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-commands.h b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
index 35f592d..1025ffe 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
@@ -1045,6 +1045,10 @@ struct iwl4965_rx_mpdu_res_start {
* MAC header) to DWORD boundary. */
#define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
+/* accelerate aggregation support
+ * 0 - no CCMP encryption; 1 - CCMP encryption */
+#define TX_CMD_FLG_AGG_CCMP_MSK __constant_cpu_to_le32(1 << 22)
+
/* HCCA-AP - disable duration overwriting. */
#define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 0b73351..d0cb36b 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -2427,6 +2427,8 @@ static void iwl4965_build_tx_cmd_hwcrypto(struct iwl4965_priv *priv,
case ALG_CCMP:
cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
+ if (ctl->flags & IEEE80211_TXCTL_AMPDU)
+ cmd->cmd.tx.tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
break;
--
1.5.3.4
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