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rfcomm: return RFCOMM_CHANNEL_ALREADY_REGISTERED if outgoing connection for given server channel already exists

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This commit is contained in:
Matthias Ringwald 2016-06-07 17:05:24 +02:00
parent 04da39e3f2
commit 2a1147c94c
1 changed files with 8 additions and 0 deletions
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8
src/classic/rfcomm.c
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@ -2201,6 +2201,14 @@ static uint8_t rfcomm_channel_create_internal(btstack_packet_handler_t packet_ha
new_multiplexer = 1;
}
// check if channel for this remote service already exists
uint8_t dlci = (server_channel << 1) | (multiplexer->outgoing ^ 1);
channel = rfcomm_channel_for_multiplexer_and_dlci(multiplexer, dlci);
if (channel){
status = RFCOMM_CHANNEL_ALREADY_REGISTERED;
goto fail;
}
// prepare channel
channel = rfcomm_channel_create(multiplexer, NULL, server_channel);
if (!channel){