diff options
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r-- | net/mac80211/mlme.c | 81 |
1 files changed, 63 insertions, 18 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 7486f2dab4ba..098ce9b179ee 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -30,6 +30,7 @@ #include "driver-ops.h" #include "rate.h" #include "led.h" +#include "fils_aead.h" #define IEEE80211_AUTH_TIMEOUT (HZ / 5) #define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2) @@ -652,6 +653,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) 2 + sizeof(struct ieee80211_ht_cap) + /* HT */ 2 + sizeof(struct ieee80211_vht_cap) + /* VHT */ assoc_data->ie_len + /* extra IEs */ + (assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) + 9, /* WMM */ GFP_KERNEL); if (!skb) @@ -875,6 +877,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) memcpy(pos, assoc_data->ie + offset, noffset - offset); } + if (assoc_data->fils_kek_len && + fils_encrypt_assoc_req(skb, assoc_data) < 0) { + dev_kfree_skb(skb); + return; + } + drv_mgd_prepare_tx(local, sdata); IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; @@ -2510,7 +2518,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, } static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, - bool assoc) + bool assoc, bool abandon) { struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; @@ -2533,6 +2541,9 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, mutex_lock(&sdata->local->mtx); ieee80211_vif_release_channel(sdata); mutex_unlock(&sdata->local->mtx); + + if (abandon) + cfg80211_abandon_assoc(sdata->dev, assoc_data->bss); } kfree(assoc_data); @@ -2618,6 +2629,9 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, case WLAN_AUTH_LEAP: case WLAN_AUTH_FT: case WLAN_AUTH_SAE: + case WLAN_AUTH_FILS_SK: + case WLAN_AUTH_FILS_SK_PFS: + case WLAN_AUTH_FILS_PK: break; case WLAN_AUTH_SHARED_KEY: if (ifmgd->auth_data->expected_transaction != 4) { @@ -2762,7 +2776,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, bssid, reason_code, ieee80211_get_reason_code_string(reason_code)); - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, true); cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); return; @@ -3143,6 +3157,10 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, reassoc ? "Rea" : "A", mgmt->sa, capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); + if (assoc_data->fils_kek_len && + fils_decrypt_assoc_resp(sdata, (u8 *)mgmt, &len, assoc_data) < 0) + return; + pos = mgmt->u.assoc_resp.variable; ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems); @@ -3167,14 +3185,14 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, if (status_code != WLAN_STATUS_SUCCESS) { sdata_info(sdata, "%pM denied association (code=%d)\n", mgmt->sa, status_code); - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, false); event.u.mlme.status = MLME_DENIED; event.u.mlme.reason = status_code; drv_event_callback(sdata->local, sdata, &event); } else { if (!ieee80211_assoc_success(sdata, bss, mgmt, len)) { /* oops -- internal error -- send timeout for now */ - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, false); cfg80211_assoc_timeout(sdata->dev, bss); return; } @@ -3187,13 +3205,13 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, * recalc after assoc_data is NULL but before associated * is set can cause the interface to go idle */ - ieee80211_destroy_assoc_data(sdata, true); + ieee80211_destroy_assoc_data(sdata, true, false); /* get uapsd queues configuration */ uapsd_queues = 0; for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) if (sdata->tx_conf[ac].uapsd) - uapsd_queues |= BIT(ac); + uapsd_queues |= ieee80211_ac_to_qos_mask[ac]; } cfg80211_rx_assoc_resp(sdata->dev, bss, (u8 *)mgmt, len, uapsd_queues); @@ -3886,7 +3904,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) .u.mlme.status = MLME_TIMEOUT, }; - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, false); cfg80211_assoc_timeout(sdata->dev, bss); drv_event_callback(sdata->local, sdata, &event); } @@ -4025,7 +4043,7 @@ void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) WLAN_REASON_DEAUTH_LEAVING, false, frame_buf); if (ifmgd->assoc_data) - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, true); if (ifmgd->auth_data) ieee80211_destroy_auth_data(sdata, false); cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, @@ -4479,24 +4497,36 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, case NL80211_AUTHTYPE_SAE: auth_alg = WLAN_AUTH_SAE; break; + case NL80211_AUTHTYPE_FILS_SK: + auth_alg = WLAN_AUTH_FILS_SK; + break; + case NL80211_AUTHTYPE_FILS_SK_PFS: + auth_alg = WLAN_AUTH_FILS_SK_PFS; + break; + case NL80211_AUTHTYPE_FILS_PK: + auth_alg = WLAN_AUTH_FILS_PK; + break; default: return -EOPNOTSUPP; } - auth_data = kzalloc(sizeof(*auth_data) + req->sae_data_len + + auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + req->ie_len, GFP_KERNEL); if (!auth_data) return -ENOMEM; auth_data->bss = req->bss; - if (req->sae_data_len >= 4) { - __le16 *pos = (__le16 *) req->sae_data; - auth_data->sae_trans = le16_to_cpu(pos[0]); - auth_data->sae_status = le16_to_cpu(pos[1]); - memcpy(auth_data->data, req->sae_data + 4, - req->sae_data_len - 4); - auth_data->data_len += req->sae_data_len - 4; + if (req->auth_data_len >= 4) { + if (req->auth_type == NL80211_AUTHTYPE_SAE) { + __le16 *pos = (__le16 *) req->auth_data; + + auth_data->sae_trans = le16_to_cpu(pos[0]); + auth_data->sae_status = le16_to_cpu(pos[1]); + } + memcpy(auth_data->data, req->auth_data + 4, + req->auth_data_len - 4); + auth_data->data_len += req->auth_data_len - 4; } if (req->ie && req->ie_len) { @@ -4692,6 +4722,21 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, assoc_data->ie_len = req->ie_len; } + if (req->fils_kek) { + /* should already be checked in cfg80211 - so warn */ + if (WARN_ON(req->fils_kek_len > FILS_MAX_KEK_LEN)) { + err = -EINVAL; + goto err_free; + } + memcpy(assoc_data->fils_kek, req->fils_kek, + req->fils_kek_len); + assoc_data->fils_kek_len = req->fils_kek_len; + } + + if (req->fils_nonces) + memcpy(assoc_data->fils_nonces, req->fils_nonces, + 2 * FILS_NONCE_LEN); + assoc_data->bss = req->bss; if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) { @@ -4907,7 +4952,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, IEEE80211_STYPE_DEAUTH, req->reason_code, tx, frame_buf); - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, true); ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, req->reason_code); @@ -4982,7 +5027,7 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) sdata_lock(sdata); if (ifmgd->assoc_data) { struct cfg80211_bss *bss = ifmgd->assoc_data->bss; - ieee80211_destroy_assoc_data(sdata, false); + ieee80211_destroy_assoc_data(sdata, false, false); cfg80211_assoc_timeout(sdata->dev, bss); } if (ifmgd->auth_data) |