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nimble/host: Connect EATT when encryption is enabled

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Some peers reject connection to EATT PSM if encryption is not enabled.
Since EATT requires any PDUs to be sent only on encrypted link we
can postpone initiating EATT connection until encryption with no real
drawbacks.
This commit is contained in:
Szymon Janc
2024-03-20 13:25:25 +01:00
parent a6e47b687b
commit 6f8f2572e3
1 changed files with 10 additions and 5 deletions
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nimble/host/src/ble_eatt.c
+10 -5
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@@ -450,15 +450,20 @@ ble_eatt_gap_event(struct ble_gap_event *event, void *arg)
struct ble_eatt *eatt;
switch (event->type) {
case BLE_GAP_EVENT_CONNECT:
if (event->connect.status != 0) {
case BLE_GAP_EVENT_ENC_CHANGE:
if (event->enc_change.status != 0) {
return 0;
}
BLE_EATT_LOG_DEBUG("eatt: Device connected, waiting to write into "
"client supported features\n");
/* don't try to connect if already connected */
if (ble_eatt_find_by_conn_handle(event->enc_change.conn_handle)) {
return 0;
}
ble_npl_event_set_arg(&g_read_sup_srv_feat_ev, UINT_TO_POINTER(event->connect.conn_handle));
BLE_EATT_LOG_DEBUG("eatt: Encryption enabled, connecting EATT (conn_handle=0x%04x)\n",
event->enc_change.conn_handle);
ble_npl_event_set_arg(&g_read_sup_srv_feat_ev, UINT_TO_POINTER(event->enc_change.conn_handle));
ble_npl_eventq_put(ble_hs_evq_get(), &g_read_sup_srv_feat_ev);
break;