@@ -554,7 +554,7 @@ struct iwl_wowlan_gtk_status_v1 {
} __packed; /* WOWLAN_GTK_MATERIAL_VER_1 */
/**
- * struct iwl_wowlan_gtk_status - GTK status
+ * struct iwl_wowlan_gtk_status_v2 - GTK status
* @key: GTK material
* @key_len: GTK legth, if set to 0, the key is not available
* @key_flags: information about the key:
@@ -565,7 +565,7 @@ struct iwl_wowlan_gtk_status_v1 {
* @tkip_mic_key: TKIP RX MIC key
* @rsc: TSC RSC counters
*/
-struct iwl_wowlan_gtk_status {
+struct iwl_wowlan_gtk_status_v2 {
u8 key[WOWLAN_KEY_MAX_SIZE];
u8 key_len;
u8 key_flags;
@@ -574,6 +574,41 @@ struct iwl_wowlan_gtk_status {
struct iwl_wowlan_rsc_tsc_params_cmd_ver_2 rsc;
} __packed; /* WOWLAN_GTK_MATERIAL_VER_2 */
+/**
+ * struct iwl_wowlan_all_rsc_tsc_v5 - key counters
+ * @ucast_rsc: unicast RSC values
+ * @mcast_rsc: multicast RSC values (per key map value)
+ * @sta_id: station ID
+ * @mcast_key_id_map: map of key id to @mcast_rsc entry
+ */
+struct iwl_wowlan_all_rsc_tsc_v5 {
+ __le64 ucast_rsc[IWL_MAX_TID_COUNT];
+ __le64 mcast_rsc[2][IWL_MAX_TID_COUNT];
+ __le32 sta_id;
+ u8 mcast_key_id_map[4];
+} __packed; /* ALL_TSC_RSC_API_S_VER_5 */
+
+/**
+ * struct iwl_wowlan_gtk_status_v3 - GTK status
+ * @key: GTK material
+ * @key_len: GTK length, if set to 0, the key is not available
+ * @key_flags: information about the key:
+ * bits[0:1]: key index assigned by the AP
+ * bits[2:6]: GTK index of the key in the internal DB
+ * bit[7]: Set iff this is the currently used GTK
+ * @reserved: padding
+ * @tkip_mic_key: TKIP RX MIC key
+ * @sc: RSC/TSC counters
+ */
+struct iwl_wowlan_gtk_status_v3 {
+ u8 key[WOWLAN_KEY_MAX_SIZE];
+ u8 key_len;
+ u8 key_flags;
+ u8 reserved[2];
+ u8 tkip_mic_key[IWL_MIC_KEY_SIZE];
+ struct iwl_wowlan_all_rsc_tsc_v5 sc;
+} __packed; /* WOWLAN_GTK_MATERIAL_VER_3 */
+
#define IWL_WOWLAN_GTK_IDX_MASK (BIT(0) | BIT(1))
/**
@@ -640,7 +675,7 @@ struct iwl_wowlan_status_v6 {
* @wake_packet: wakeup packet
*/
struct iwl_wowlan_status_v7 {
- struct iwl_wowlan_gtk_status gtk[WOWLAN_GTK_KEYS_NUM];
+ struct iwl_wowlan_gtk_status_v2 gtk[WOWLAN_GTK_KEYS_NUM];
struct iwl_wowlan_igtk_status igtk[WOWLAN_IGTK_KEYS_NUM];
__le64 replay_ctr;
__le16 pattern_number;
@@ -676,7 +711,7 @@ struct iwl_wowlan_status_v7 {
* @wake_packet: wakeup packet
*/
struct iwl_wowlan_status_v9 {
- struct iwl_wowlan_gtk_status gtk[WOWLAN_GTK_KEYS_NUM];
+ struct iwl_wowlan_gtk_status_v2 gtk[WOWLAN_GTK_KEYS_NUM];
struct iwl_wowlan_igtk_status igtk[WOWLAN_IGTK_KEYS_NUM];
__le64 replay_ctr;
__le16 pattern_number;
@@ -693,6 +728,44 @@ struct iwl_wowlan_status_v9 {
u8 wake_packet[]; /* can be truncated from _length to _bufsize */
} __packed; /* WOWLAN_STATUSES_RSP_API_S_VER_9 */
+/**
+ * struct iwl_wowlan_status_v12 - WoWLAN status
+ * @gtk: GTK data
+ * @igtk: IGTK data
+ * @replay_ctr: GTK rekey replay counter
+ * @pattern_number: number of the matched pattern
+ * @non_qos_seq_ctr: non-QoS sequence counter to use next.
+ * Reserved if the struct has version >= 10.
+ * @qos_seq_ctr: QoS sequence counters to use next
+ * @wakeup_reasons: wakeup reasons, see &enum iwl_wowlan_wakeup_reason
+ * @num_of_gtk_rekeys: number of GTK rekeys
+ * @transmitted_ndps: number of transmitted neighbor discovery packets
+ * @received_beacons: number of received beacons
+ * @wake_packet_length: wakeup packet length
+ * @wake_packet_bufsize: wakeup packet buffer size
+ * @tid_tear_down: bit mask of tids whose BA sessions were closed
+ * in suspend state
+ * @reserved: unused
+ * @wake_packet: wakeup packet
+ */
+struct iwl_wowlan_status_v12 {
+ struct iwl_wowlan_gtk_status_v3 gtk[WOWLAN_GTK_KEYS_NUM];
+ struct iwl_wowlan_igtk_status igtk[WOWLAN_IGTK_KEYS_NUM];
+ __le64 replay_ctr;
+ __le16 pattern_number;
+ __le16 non_qos_seq_ctr;
+ __le16 qos_seq_ctr[8];
+ __le32 wakeup_reasons;
+ __le32 num_of_gtk_rekeys;
+ __le32 transmitted_ndps;
+ __le32 received_beacons;
+ __le32 wake_packet_length;
+ __le32 wake_packet_bufsize;
+ u8 tid_tear_down;
+ u8 reserved[3];
+ u8 wake_packet[]; /* can be truncated from _length to _bufsize */
+} __packed; /* WOWLAN_STATUSES_RSP_API_S_VER_12 */
+
/* TODO: NetDetect API */
#endif /* __iwl_fw_api_d3_h__ */
@@ -1390,6 +1390,13 @@ struct iwl_wowlan_status_data {
u16 qos_seq_ctr[8];
u8 tid_tear_down;
+ struct {
+ /* including RX MIC key for TKIP */
+ u8 key[WOWLAN_KEY_MAX_SIZE];
+ u8 len;
+ u8 flags;
+ } gtk;
+
struct {
/*
* We store both the TKIP and AES representations
@@ -1400,11 +1407,15 @@ struct iwl_wowlan_status_data {
struct {
struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
} tkip, aes;
- /* including RX MIC key for TKIP */
- u8 key[WOWLAN_KEY_MAX_SIZE];
- u8 len;
- u8 flags;
- } gtk;
+
+ /*
+ * We use -1 for when we have valid data but don't know
+ * the key ID from firmware, and thus it needs to be
+ * installed with the last key (depending on rekeying).
+ */
+ s8 key_id;
+ bool valid;
+ } gtk_seq[2];
struct {
/* Same as above */
@@ -1556,12 +1567,10 @@ static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
kfree_skb(pkt);
}
-static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
- struct ieee80211_key_seq *seq)
+static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
{
- u64 pn;
+ u64 pn = le64_to_cpu(le_pn);
- pn = le64_to_cpu(sc->pn);
seq->ccmp.pn[0] = pn >> 40;
seq->ccmp.pn[1] = pn >> 32;
seq->ccmp.pn[2] = pn >> 24;
@@ -1570,6 +1579,20 @@ static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
seq->ccmp.pn[5] = pn;
}
+static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
+ struct ieee80211_key_seq *seq)
+{
+ iwl_mvm_le64_to_aes_seq(sc->pn, seq);
+}
+
+static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
+{
+ u64 pn = le64_to_cpu(le_pn);
+
+ seq->tkip.iv16 = (u16)pn;
+ seq->tkip.iv32 = (u32)(pn >> 16);
+}
+
static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
struct ieee80211_key_seq *seq)
{
@@ -1630,10 +1653,12 @@ static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
/* GTK RX counters */
for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
- &status->gtk.tkip.seq[i]);
+ &status->gtk_seq[0].tkip.seq[i]);
iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
- &status->gtk.aes.seq[i]);
+ &status->gtk_seq[0].aes.seq[i]);
}
+ status->gtk_seq[0].valid = true;
+ status->gtk_seq[0].key_id = -1;
/* PTK TX counter */
status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
@@ -1649,28 +1674,103 @@ static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
}
}
-static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
- struct ieee80211_key_conf *key,
- struct iwl_wowlan_status_data *status,
- bool installed)
+static void
+iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
+ struct iwl_wowlan_all_rsc_tsc_v5 *sc,
+ unsigned int idx, unsigned int key_id)
{
- if (status->num_of_gtk_rekeys && !installed)
- return;
+ int tid;
+
+ for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
+ iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
+ &status->gtk_seq[idx].tkip.seq[tid]);
+ iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
+ &status->gtk_seq[idx].aes.seq[tid]);
+ }
+
+ status->gtk_seq[idx].valid = true;
+ status->gtk_seq[idx].key_id = key_id;
+}
+
+static void
+iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
+ struct iwl_wowlan_all_rsc_tsc_v5 *sc)
+{
+ int i, tid;
+ BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
+ BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
+ BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
+
+ /* GTK RX counters */
+ for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
+ u8 entry = sc->mcast_key_id_map[i];
+
+ if (entry < ARRAY_SIZE(sc->mcast_rsc))
+ iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
+ entry, i);
+ }
+
+ /* PTK TX counters not needed, assigned in device */
+
+ /* PTK RX counters */
+ for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
+ iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
+ &status->ptk.tkip.seq[tid]);
+ iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
+ &status->ptk.aes.seq[tid]);
+ }
+}
+
+static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
+ struct iwl_wowlan_status_data *status,
+ int idx)
+{
switch (key->cipher) {
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
- iwl_mvm_set_key_rx_seq_tids(key, status->gtk.aes.seq);
+ iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
break;
case WLAN_CIPHER_SUITE_TKIP:
- iwl_mvm_set_key_rx_seq_tids(key, status->gtk.tkip.seq);
+ iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
break;
default:
WARN_ON(1);
}
}
+static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
+ struct iwl_wowlan_status_data *status,
+ bool installed)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
+ if (!status->gtk_seq[i].valid)
+ continue;
+
+ /* Handle the case where we know the key ID */
+ if (status->gtk_seq[i].key_id == key->keyidx) {
+ s8 new_key_id = -1;
+
+ if (status->num_of_gtk_rekeys)
+ new_key_id = status->gtk.flags &
+ IWL_WOWLAN_GTK_IDX_MASK;
+
+ /* Don't install a new key's value to an old key */
+ if (new_key_id != key->keyidx)
+ iwl_mvm_set_key_rx_seq_idx(key, status, i);
+ continue;
+ }
+
+ /* handle the case where we didn't, last key only */
+ if (status->gtk_seq[i].key_id == -1 &&
+ (!status->num_of_gtk_rekeys || installed))
+ iwl_mvm_set_key_rx_seq_idx(key, status, i);
+ }
+}
+
struct iwl_mvm_d3_gtk_iter_data {
struct iwl_mvm *mvm;
struct iwl_wowlan_status_data *status;
@@ -1746,7 +1846,7 @@ static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
ieee80211_remove_key(key);
if (data->last_gtk == key)
- iwl_mvm_set_key_rx_seq(data->mvm, key, data->status, false);
+ iwl_mvm_set_key_rx_seq(key, data->status, false);
}
static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
@@ -1830,7 +1930,7 @@ static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
key = ieee80211_gtk_rekey_add(vif, &conf.conf);
if (IS_ERR(key))
return false;
- iwl_mvm_set_key_rx_seq(mvm, key, status, true);
+ iwl_mvm_set_key_rx_seq(key, status, true);
replay_ctr = cpu_to_be64(status->replay_ctr);
@@ -1898,9 +1998,10 @@ iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
iwl_mvm_parse_wowlan_status_common(v6)
iwl_mvm_parse_wowlan_status_common(v7)
iwl_mvm_parse_wowlan_status_common(v9)
+iwl_mvm_parse_wowlan_status_common(v12)
-static void iwl_mvm_convert_gtk(struct iwl_wowlan_status_data *status,
- struct iwl_wowlan_gtk_status *data)
+static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
+ struct iwl_wowlan_gtk_status_v2 *data)
{
BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key));
BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
@@ -1918,6 +2019,26 @@ static void iwl_mvm_convert_gtk(struct iwl_wowlan_status_data *status,
data->tkip_mic_key, sizeof(data->tkip_mic_key));
}
+static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
+ struct iwl_wowlan_gtk_status_v3 *data)
+{
+ /* The parts we need are identical in v2 and v3 */
+#define CHECK(_f) do { \
+ BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \
+ offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \
+ BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\
+ offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \
+} while (0)
+
+ CHECK(key);
+ CHECK(key_len);
+ CHECK(key_flags);
+ CHECK(tkip_mic_key);
+#undef CHECK
+
+ iwl_mvm_convert_gtk_v2(status, (void *)data);
+}
+
static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
struct iwl_wowlan_igtk_status *data)
{
@@ -2017,7 +2138,7 @@ iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
goto out_free_resp;
iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
- iwl_mvm_convert_gtk(status, &v7->gtk[0]);
+ iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
iwl_mvm_convert_igtk(status, &v7->igtk[0]);
} else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
@@ -2030,10 +2151,22 @@ iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
goto out_free_resp;
iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
- iwl_mvm_convert_gtk(status, &v9->gtk[0]);
+ iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
iwl_mvm_convert_igtk(status, &v9->igtk[0]);
status->tid_tear_down = v9->tid_tear_down;
+ } else if (notif_ver == 12) {
+ struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
+
+ status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
+ if (IS_ERR(status))
+ goto out_free_resp;
+
+ iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
+ iwl_mvm_convert_gtk_v3(status, &v12->gtk[0]);
+ iwl_mvm_convert_igtk(status, &v12->igtk[0]);
+
+ status->tid_tear_down = v12->tid_tear_down;
} else {
IWL_ERR(mvm,
"Firmware advertises unknown WoWLAN status response %d!\n",