static struct wpabuf * wps_build_wsc_done(struct wps_data *wps)
{
struct wpabuf *msg;
wpa_printf(MSG_DEBUG, "WPS: Building Message WSC_Done");
msg = wpabuf_alloc(1000);
if (msg == NULL)
return NULL;
if (wps_build_version(msg) ||
wps_build_msg_type(msg, WPS_WSC_DONE) ||
wps_build_enrollee_nonce(wps, msg) ||
wps_build_registrar_nonce(wps, msg) ||
wps_build_wfa_ext(msg, 0, NULL, 0)) {
wpabuf_free(msg);
return NULL;
}
if (wps->wps->ap)
wps->state = RECV_ACK;
else {
wps_success_event(wps->wps);
wps->state = WPS_FINISHED;
}
return msg;
}
static enum wps_process_res wps_process_wsc_ack(struct wps_data *wps,
const struct wpabuf *msg)
{
struct wps_parse_attr attr;
wpa_printf(MSG_DEBUG, "WPS: Received WSC_ACK");
if (wps_parse_msg(msg, &attr) < 0)
return WPS_FAILURE;
if (!wps_version_supported(attr.version)) {
wpa_printf(MSG_DEBUG, "WPS: Unsupported message version 0x%x",
attr.version ? *attr.version : 0);
return WPS_FAILURE;
}
if (attr.msg_type == NULL) {
wpa_printf(MSG_DEBUG, "WPS: No Message Type attribute");
return WPS_FAILURE;
}
if (*attr.msg_type != WPS_WSC_ACK) {
wpa_printf(MSG_DEBUG, "WPS: Invalid Message Type %d",
*attr.msg_type);
return WPS_FAILURE;
}
if (attr.registrar_nonce == NULL ||
os_memcmp(wps->nonce_r, attr.registrar_nonce, WPS_NONCE_LEN != 0))
{
wpa_printf(MSG_DEBUG, "WPS: Mismatch in registrar nonce");
return WPS_FAILURE;
}
if (attr.enrollee_nonce == NULL ||
os_memcmp(wps->nonce_e, attr.enrollee_nonce, WPS_NONCE_LEN != 0)) {
wpa_printf(MSG_DEBUG, "WPS: Mismatch in enrollee nonce");
return WPS_FAILURE;
}
if (wps->state == RECV_ACK && wps->wps->ap) {
wpa_printf(MSG_DEBUG, "WPS: External Registrar registration "
"completed successfully");
wps_success_event(wps->wps);
wps->state = WPS_FINISHED;
return WPS_DONE;
}
return WPS_FAILURE;
}
