From 85f36923be47b6990215ad444545a6a85133a0c6 Mon Sep 17 00:00:00 2001 From: Karthikeyan Periyasamy Date: Fri, 12 Nov 2021 10:03:40 +0200 Subject: [PATCH] ath11k: fix fw crash due to peer get authorized before key install Firmware expects host to authorize the peer after the successful key install. But host authorize the peer before the key install, this trigger the firmware assert which leads to Q6 crash. To avoid this Q6 crash, host should authorize the peer after the key install. So introduce is_authorized in peer object to identify that peer is authorize or not. When IEEE80211_STA_CONTROL_PORT flag is unset, peer move to authorize state before the vdev up. When the same flag is set then peer move to authorize state after vdev up. So added authorise check in ath11k_bss_assoc() to handle the earlier state transition case. Also added the WMI authorize procedure in ath11k_mac_op_sta_state() to handle the non-earlier state transition case. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1 Signed-off-by: Karthikeyan Periyasamy Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1636554200-12345-1-git-send-email-quic_periyasa@quicinc.com --- drivers/net/wireless/ath/ath11k/mac.c | 53 ++++++++++++++++++++++---- drivers/net/wireless/ath/ath11k/peer.h | 1 + 2 files changed, 47 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index a62c63ffb3cf4..b82910c3f5a57 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -2474,6 +2474,8 @@ static void ath11k_bss_assoc(struct ieee80211_hw *hw, struct ath11k_vif *arvif = (void *)vif->drv_priv; struct peer_assoc_params peer_arg; struct ieee80211_sta *ap_sta; + struct ath11k_peer *peer; + bool is_auth = false; int ret; lockdep_assert_held(&ar->conf_mutex); @@ -2536,13 +2538,22 @@ static void ath11k_bss_assoc(struct ieee80211_hw *hw, "mac vdev %d up (associated) bssid %pM aid %d\n", arvif->vdev_id, bss_conf->bssid, bss_conf->aid); - /* Authorize BSS Peer */ - ret = ath11k_wmi_set_peer_param(ar, arvif->bssid, - arvif->vdev_id, - WMI_PEER_AUTHORIZE, - 1); - if (ret) - ath11k_warn(ar->ab, "Unable to authorize BSS peer: %d\n", ret); + spin_lock_bh(&ar->ab->base_lock); + + peer = ath11k_peer_find(ar->ab, arvif->vdev_id, arvif->bssid); + if (peer && peer->is_authorized) + is_auth = true; + + spin_unlock_bh(&ar->ab->base_lock); + + if (is_auth) { + ret = ath11k_wmi_set_peer_param(ar, arvif->bssid, + arvif->vdev_id, + WMI_PEER_AUTHORIZE, + 1); + if (ret) + ath11k_warn(ar->ab, "Unable to authorize BSS peer: %d\n", ret); + } ret = ath11k_wmi_send_obss_spr_cmd(ar, arvif->vdev_id, &bss_conf->he_obss_pd); @@ -4220,6 +4231,34 @@ static int ath11k_mac_op_sta_state(struct ieee80211_hw *hw, if (ret) ath11k_warn(ar->ab, "Failed to associate station: %pM\n", sta->addr); + } else if (old_state == IEEE80211_STA_ASSOC && + new_state == IEEE80211_STA_AUTHORIZED) { + spin_lock_bh(&ar->ab->base_lock); + + peer = ath11k_peer_find(ar->ab, arvif->vdev_id, sta->addr); + if (peer) + peer->is_authorized = true; + + spin_unlock_bh(&ar->ab->base_lock); + + if (vif->type == NL80211_IFTYPE_STATION && arvif->is_up) { + ret = ath11k_wmi_set_peer_param(ar, sta->addr, + arvif->vdev_id, + WMI_PEER_AUTHORIZE, + 1); + if (ret) + ath11k_warn(ar->ab, "Unable to authorize peer %pM vdev %d: %d\n", + sta->addr, arvif->vdev_id, ret); + } + } else if (old_state == IEEE80211_STA_AUTHORIZED && + new_state == IEEE80211_STA_ASSOC) { + spin_lock_bh(&ar->ab->base_lock); + + peer = ath11k_peer_find(ar->ab, arvif->vdev_id, sta->addr); + if (peer) + peer->is_authorized = false; + + spin_unlock_bh(&ar->ab->base_lock); } else if (old_state == IEEE80211_STA_ASSOC && new_state == IEEE80211_STA_AUTH && (vif->type == NL80211_IFTYPE_AP || diff --git a/drivers/net/wireless/ath/ath11k/peer.h b/drivers/net/wireless/ath/ath11k/peer.h index 619db001be8e9..63fe5665badf3 100644 --- a/drivers/net/wireless/ath/ath11k/peer.h +++ b/drivers/net/wireless/ath/ath11k/peer.h @@ -28,6 +28,7 @@ struct ath11k_peer { u8 ucast_keyidx; u16 sec_type; u16 sec_type_grp; + bool is_authorized; }; void ath11k_peer_unmap_event(struct ath11k_base *ab, u16 peer_id);