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dpp: handle protocol errors in ROC timeout

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This is a standing TODO of properly handling these timeouts but
for now just treat any ROC timeout as an error if authenticating
or configuring.
This commit is contained in:
James Prestwood 2021-12-17 13:29:52 -08:00 committed by Denis Kenzior
parent 926c8bb9bd
commit d2240c4a62
1 changed files with 32 additions and 3 deletions
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35
src/dpp.c
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@ -1076,10 +1076,34 @@ static void dpp_presence_timeout(int error, void *user_data)
{
struct dpp_sm *dpp = user_data;
if (dpp->state != DPP_STATE_PRESENCE) {
l_debug("DPP state changed, stopping presence announcements");
dpp->freqs_idx = 0;
/*
* If cancelled this is likely due to netdev going down or from Stop().
* Otherwise there was some other problem which is probably not
* recoverable.
*/
if (error == -ECANCELED)
return;
else if (error < 0)
goto protocol_failed;
switch (dpp->state) {
case DPP_STATE_PRESENCE:
break;
case DPP_STATE_NOTHING:
/* Protocol already terminated */
return;
case DPP_STATE_AUTHENTICATING:
case DPP_STATE_CONFIGURING:
/*
* TODO: If either the auth or config protocol is running we
* need to stay on channel until the specified timeouts.
* Unfortunately the kernel makes this very inconvenient since
* there is no way to stay on channel indefinitely or any way
* of knowing what duration the kernel/card actually chooses.
*
* For now just treat this as a failure.
*/
goto protocol_failed;
}
dpp->freqs_idx++;
@ -1097,6 +1121,11 @@ static void dpp_presence_timeout(int error, void *user_data)
dpp->offchannel_id = offchannel_start(netdev_get_wdev_id(dpp->netdev),
dpp->current_freq, dpp->dwell, dpp_roc_started,
dpp, dpp_presence_timeout);
return;
protocol_failed:
dpp_reset(dpp);
return;
}
/*