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l2cap: send request for extended features only once

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This commit is contained in:
Matthias Ringwald 2018-09-25 15:47:23 +02:00
parent 93d791b29f
commit 04a731541f
1 changed files with 21 additions and 2 deletions
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23
src/l2cap.c
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@ -2170,9 +2170,28 @@ static void l2cap_hci_event_handler(uint8_t packet_type, uint16_t cid, uint8_t *
if (actual_level >= required_level){
#ifdef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE
// we need to know if ERTM is supported before sending a config response
int inform_app = 0;
hci_connection_t * connection = hci_connection_for_handle(channel->con_handle);
connection->l2cap_state.information_state = L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST;
channel->state = L2CAP_STATE_WAIT_INCOMING_EXTENDED_FEATURES;
switch (connection->l2cap_state.information_state){
case L2CAP_INFORMATION_STATE_IDLE:
// trigger extended feature request
connection->l2cap_state.information_state = L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST;
channel->state = L2CAP_STATE_WAIT_INCOMING_EXTENDED_FEATURES;
break;
case L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST:
// extended feature request already registered, wait for response
channel->state = L2CAP_STATE_WAIT_INCOMING_EXTENDED_FEATURES;
break;
case L2CAP_INFORMATION_STATE_W4_EXTENDED_FEATURE_RESPONSE:
// extended feature request already registered, wait for response
channel->state = L2CAP_STATE_WAIT_INCOMING_EXTENDED_FEATURES;
break;
case L2CAP_INFORMATION_STATE_DONE:
// already done, inform app
inform_app = 1;
break;
}
if (!inform_app) break;
#else
channel->state = L2CAP_STATE_WAIT_CLIENT_ACCEPT_OR_REJECT;
l2cap_emit_incoming_connection(channel);