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DPP: Indicate authentication success on ConfReqRX if needed (hostapd)

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It is possible to receive the Configuration Request frame before having
seen TX status for the Authentication Confirm. In that sequence, the
DPP-AUTH-SUCCESS event would not be indicated before processing the
configuration step and that could confuse upper layers that follow the
details of the DPP exchange. As a workaround, indicate DPP-AUTH-SUCCESS
when receiving the Configuration Request since the Enrollee/Responser
has clearly receive the Authentication Confirm even if the TX status for
it has not been received.

This was already done in wpa_supplicant in commit 422e73d623 ("DPP:
Indicate authentication success on ConfReqRX if needed") and matching
changes are now added to hostapd.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2021-03-20 16:09:19 +02:00
parent eff3212763
commit 512d973cc2
1 changed files with 13 additions and 0 deletions
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13
src/ap/dpp_hostapd.c
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@ -1982,6 +1982,19 @@ hostapd_dpp_gas_req_handler(struct hostapd_data *hapd, const u8 *sa,
wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
return NULL;
}
if (hapd->dpp_auth_ok_on_ack && auth->configurator) {
wpa_printf(MSG_DEBUG,
"DPP: Have not received ACK for Auth Confirm yet - assume it was received based on this GAS request");
/* hostapd_dpp_auth_success() would normally have been called
* from TX status handler, but since there was no such handler
* call yet, simply send out the event message and proceed with
* exchange. */
wpa_msg(hapd->msg_ctx, MSG_INFO,
DPP_EVENT_AUTH_SUCCESS "init=1");
hapd->dpp_auth_ok_on_ack = 0;
}
wpa_hexdump(MSG_DEBUG,
"DPP: Received Configuration Request (GAS Query Request)",
query, query_len);