sjanc commented on a change in pull request #871:
URL: https://github.com/apache/mynewt-nimble/pull/871#discussion_r502371188
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File path: nimble/controller/src/ble_ll_conn.c
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@@ -1015,8 +1015,14 @@ ble_ll_conn_tx_pdu(struct ble_ll_conn_sm *connsm)
/*
* If we are encrypting, we are only allowed to send certain
* kinds of LL control PDU's. If none is enqueued, send empty pdu!
+ *
+ * In Slave role, we are allowed to send unencrypted packets until
+ * LL_ENC_RSP is sent.
*/
- if (connsm->enc_data.enc_state > CONN_ENC_S_ENCRYPTED) {
+ if (((connsm->enc_data.enc_state > CONN_ENC_S_ENCRYPTED) &&
+ CONN_IS_MASTER(connsm)) ||
+ ((connsm->enc_data.enc_state > CONN_ENC_S_ENC_RSP_TO_BE_SENT) &&
+ !CONN_IS_MASTER(connsm))) {
Review comment:
we also have CONN_IS_SLAVE macro :)
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