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netdev: allow reassociation for auth-protos
This adds support in netdev_reassociate for all the auth protocols (SAE/FILS/OWE) by moving the bulk of netdev_connect into netdev_connect_common. In addition PREV_BSSID is set in the associate message if 'in_reassoc' is true.
This commit is contained in:
James Prestwood
Denis Kenzior
parent
da0fa4e012
commit
80fec3f5f4
136
src/netdev.c
136
src/netdev.c
@ -180,6 +180,7 @@ struct netdev {
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bool aborting : 1;
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bool events_ready : 1;
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bool retry_auth : 1;
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bool in_reassoc : 1;
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};
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struct netdev_preauth_state {
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@ -780,6 +781,7 @@ static void netdev_connect_free(struct netdev *netdev)
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netdev->result = NETDEV_RESULT_OK;
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netdev->last_code = 0;
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netdev->in_ft = false;
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netdev->in_reassoc = false;
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netdev->ignore_connect_event = false;
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netdev->expect_connect_failure = false;
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netdev->cur_rssi_low = false;
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@ -1122,7 +1124,7 @@ static void netdev_disconnect_event(struct l_genl_msg *msg,
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l_debug("");
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if (!netdev->connected || netdev->disconnect_cmd_id > 0 ||
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netdev->in_ft)
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netdev->in_ft || netdev->in_reassoc)
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return;
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if (!l_genl_attr_init(&attr, msg)) {
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@ -2559,6 +2561,7 @@ static void netdev_associate_event(struct l_genl_msg *msg,
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false);
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netdev->in_ft = false;
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netdev->in_reassoc = false;
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netdev->associated = true;
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return;
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} else if (ret == -EAGAIN) {
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@ -2745,6 +2748,11 @@ static void netdev_sae_tx_associate(void *user_data)
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l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, n_used);
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/* If doing a non-FT Reassociation */
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if (netdev->in_reassoc)
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l_genl_msg_append_attr(msg, NL80211_ATTR_PREV_BSSID, 6,
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netdev->ap->prev_bssid);
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if (!l_genl_family_send(nl80211, msg, netdev_assoc_cb, netdev, NULL)) {
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l_genl_msg_unref(msg);
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netdev_connect_failed(netdev, NETDEV_RESULT_ASSOCIATION_FAILED,
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@ -2797,6 +2805,11 @@ static void netdev_owe_tx_associate(struct iovec *owe_iov, size_t n_owe_iov,
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l_genl_msg_append_attrv(msg, NL80211_ATTR_IE, iov, c_iov);
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/* If doing a non-FT Reassociation */
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if (netdev->in_reassoc)
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l_genl_msg_append_attr(msg, NL80211_ATTR_PREV_BSSID, 6,
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netdev->ap->prev_bssid);
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if (!l_genl_family_send(nl80211, msg, netdev_assoc_cb,
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netdev, NULL)) {
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l_genl_msg_unref(msg);
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@ -2859,6 +2872,11 @@ static void netdev_fils_tx_associate(struct iovec *fils_iov, size_t n_fils_iov,
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l_genl_msg_append_attr(msg, NL80211_ATTR_FILS_NONCES,
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nonces_len, nonces);
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/* If doing a non-FT Reassociation */
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if (netdev->in_reassoc)
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l_genl_msg_append_attr(msg, NL80211_ATTR_PREV_BSSID, 6,
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netdev->ap->prev_bssid);
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if (!l_genl_family_send(nl80211, msg, netdev_assoc_cb,
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netdev, NULL)) {
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l_genl_msg_unref(msg);
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@ -3424,36 +3442,9 @@ offload_1x:
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return 0;
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}
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static void netdev_connect_common(struct netdev *netdev,
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struct l_genl_msg *cmd_connect,
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static int netdev_connect_common(struct netdev *netdev,
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struct scan_bss *bss,
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struct handshake_state *hs,
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struct eapol_sm *sm,
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netdev_event_func_t event_filter,
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netdev_connect_cb_t cb, void *user_data)
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{
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netdev->connect_cmd = cmd_connect;
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netdev->event_filter = event_filter;
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netdev->connect_cb = cb;
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netdev->user_data = user_data;
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netdev->handshake = hs;
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netdev->sm = sm;
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netdev->frequency = bss->frequency;
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netdev->cur_rssi = bss->signal_strength / 100;
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netdev_rssi_level_init(netdev);
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netdev_cqm_rssi_update(netdev);
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handshake_state_set_authenticator_address(hs, bss->addr);
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if (!wiphy_has_ext_feature(netdev->wiphy,
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NL80211_EXT_FEATURE_CAN_REPLACE_PTK0))
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handshake_state_set_no_rekey(hs, true);
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wiphy_radio_work_insert(netdev->wiphy, &netdev->work, 1,
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&connect_work_ops);
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}
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int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
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struct scan_bss *prev_bss,
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struct handshake_state *hs,
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const struct iovec *vendor_ies,
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size_t num_vendor_ies,
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@ -3465,16 +3456,7 @@ int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
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struct l_genl_msg *cmd_connect = NULL;
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struct eapol_sm *sm = NULL;
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bool is_rsn = hs->supplicant_ie != NULL;
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if (!(netdev->ifi_flags & IFF_UP))
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return -ENETDOWN;
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if (netdev->type != NL80211_IFTYPE_STATION &&
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netdev->type != NL80211_IFTYPE_P2P_CLIENT)
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return -ENOTSUP;
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if (netdev->connected || netdev->connect_cmd_id || netdev->work.id)
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return -EISCONN;
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const uint8_t *prev_bssid = prev_bss ? prev_bss->addr : NULL;
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if (!is_rsn) {
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nhs->type = CONNECTION_TYPE_SOFTMAC;
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@ -3522,7 +3504,7 @@ int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
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default:
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build_cmd_connect:
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cmd_connect = netdev_build_cmd_connect(netdev, bss, hs,
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NULL, vendor_ies, num_vendor_ies);
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prev_bssid, vendor_ies, num_vendor_ies);
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if (!is_offload(hs) && (is_rsn || hs->settings_8021x)) {
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sm = eapol_sm_new(hs);
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@ -3532,11 +3514,51 @@ build_cmd_connect:
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}
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}
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netdev_connect_common(netdev, cmd_connect, bss, hs, sm,
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event_filter, cb, user_data);
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netdev->connect_cmd = cmd_connect;
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netdev->event_filter = event_filter;
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netdev->connect_cb = cb;
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netdev->user_data = user_data;
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netdev->handshake = hs;
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netdev->sm = sm;
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netdev->frequency = bss->frequency;
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netdev->cur_rssi = bss->signal_strength / 100;
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netdev_rssi_level_init(netdev);
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netdev_cqm_rssi_update(netdev);
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handshake_state_set_authenticator_address(hs, bss->addr);
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if (!wiphy_has_ext_feature(netdev->wiphy,
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NL80211_EXT_FEATURE_CAN_REPLACE_PTK0))
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handshake_state_set_no_rekey(hs, true);
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wiphy_radio_work_insert(netdev->wiphy, &netdev->work, 1,
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&connect_work_ops);
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return 0;
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}
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int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
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struct handshake_state *hs,
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const struct iovec *vendor_ies,
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size_t num_vendor_ies,
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netdev_event_func_t event_filter,
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netdev_connect_cb_t cb, void *user_data)
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{
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if (!(netdev->ifi_flags & IFF_UP))
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return -ENETDOWN;
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if (netdev->type != NL80211_IFTYPE_STATION &&
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netdev->type != NL80211_IFTYPE_P2P_CLIENT)
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return -ENOTSUP;
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if (netdev->connected || netdev->connect_cmd_id || netdev->work.id)
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return -EISCONN;
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return netdev_connect_common(netdev, bss, NULL, hs, vendor_ies,
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num_vendor_ies, event_filter, cb,
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user_data);
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}
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static void disconnect_idle(struct l_idle *idle, void *user_data)
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{
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struct netdev *netdev = user_data;
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@ -3622,35 +3644,25 @@ int netdev_reassociate(struct netdev *netdev, struct scan_bss *target_bss,
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netdev_event_func_t event_filter,
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netdev_connect_cb_t cb, void *user_data)
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{
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struct l_genl_msg *cmd_connect;
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struct netdev_handshake_state;
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struct handshake_state *old_hs;
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struct eapol_sm *sm = NULL, *old_sm;
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bool is_rsn = hs->supplicant_ie != NULL;
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if (netdev_handshake_state_setup_connection_type(hs) < 0)
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return -ENOTSUP;
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/* TODO: SoftMac SAE/FILS Re-Associations are not suppored yet */
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if (L_WARN_ON(IE_AKM_IS_SAE(hs->akm_suite) ||
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IE_AKM_IS_FILS(hs->akm_suite)))
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return -ENOTSUP;
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cmd_connect = netdev_build_cmd_connect(netdev, target_bss, hs,
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orig_bss->addr, NULL, 0);
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if (is_rsn)
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sm = eapol_sm_new(hs);
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struct eapol_sm *old_sm;
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int ret;
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old_sm = netdev->sm;
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old_hs = netdev->handshake;
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netdev_connect_common(netdev, cmd_connect, target_bss, hs, sm,
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ret = netdev_connect_common(netdev, target_bss, orig_bss, hs, NULL, 0,
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event_filter, cb, user_data);
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if (ret < 0)
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return ret;
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if (netdev->ap)
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memcpy(netdev->ap->prev_bssid, orig_bss->addr, ETH_ALEN);
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netdev->associated = false;
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netdev->operational = false;
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netdev->connected = false;
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netdev->in_reassoc = true;
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netdev_rssi_polling_update(netdev);
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