netnatm/sig/sig_reset.c

38 #include <netnatm/sig/uni.h>
43 static void response_restart(struct uni *, struct uni_msg *, struct uni_all *);
44 static void response_status(struct uni *, struct uni_msg *, struct uni_all *);
46 static void response_t317(struct uni *);
48 static void response_error(struct uni *, struct uniapi_reset_error_response *,
50 static void response_response(struct uni *, struct uniapi_reset_response *,
53 static void start_request(struct uni *, struct uniapi_reset_request *,
56 static void start_t316(struct uni *);
58 static void start_restart_ack(struct uni *, struct uni_msg *, struct uni_all *);
59 static void start_status(struct uni *, struct uni_msg *, struct uni_all *);
61 static int restart_forward(struct uni *, const struct uni_all *);
82 uni_sig_start(struct uni *uni, u_int sig, uint32_t cookie,
86 		VERBOSE(uni, UNI_FAC_ERR, 1, "Signal %d outside of range to "
95 	VERBOSE(uni, UNI_FAC_RESTART, 1,
97 	    start_sigs[sig], uni->glob_start, cookie);
105 		start_request(uni,
114 		start_t316(uni);
121 		start_restart_ack(uni, m, u);
127 		start_status(uni, m, u);
143 start_request(struct uni *uni, struct uniapi_reset_request *req, uint32_t cookie)
148 	if (uni->glob_start != UNI_CALLSTATE_REST0) {
149 		uniapi_uni_error(uni, UNIAPI_ERROR_BAD_CALLSTATE, cookie, 0);
154 		uniapi_uni_error(uni, UNIAPI_ERROR_NOMEM, cookie, 0);
162 	if (restart_forward(uni, resp))
165 	uni->connid_start = req->connid;
166 	uni->restart_start = req->restart;
168 	if ((err = uni_send_output(resp, uni)) != 0)
169 		uniapi_uni_error(uni, UNIAPI_ERROR_ENCODING, cookie, 0);
174 	uni->cnt316 = 0;
175 	TIMER_START_UNI(uni, t316, uni->timer316);
176 	uni->glob_start = UNI_CALLSTATE_REST1;
178 	VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Start state := 1");
181 	uniapi_uni_error(uni, UNIAPI_OK, cookie, 0);
188 t316_func(struct uni *uni)
190 	uni_enq_start(uni, SIGS_T316, 0, NULL, NULL);
197 start_t316(struct uni *uni)
199 	if (uni->glob_start != UNI_CALLSTATE_REST1) {
200 		VERBOSE0(uni, UNI_FAC_ERR, "T316 in state %d",
201 		    uni->glob_start);
205 	if (++uni->cnt316 == uni->init316) {
209 		VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Start error");
216 			uni->funcs->uni_output(uni, uni->arg,
220 		uni->glob_start = UNI_CALLSTATE_REST0;
221 		VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Start state := 0");
229 		resp->u.restart.restart = uni->restart_start;
230 		resp->u.restart.connid = uni->connid_start;
232 		(void)uni_send_output(resp, uni);
236 		TIMER_START_UNI(uni, t316, uni->timer316);
244 start_restart_ack(struct uni *uni, struct uni_msg *m, struct uni_all *u)
250 	if (uni->glob_start == UNI_CALLSTATE_REST0) {
251 		uni_respond_status_mtype(uni, &u->u.hdr.cref, uni->glob_start,
256 	if (uni->glob_start != UNI_CALLSTATE_REST1) {
264 	(void)uni_decode_body(m, u, &uni->cx);
265 	MANDATE_IE(uni, u->u.restart_ack.restart, UNI_IE_RESTART);
273 			(void)UNI_SAVE_IERR(&uni->cx, UNI_IE_CONNID,
278 			MANDATE_IE(uni, u->u.restart_ack.connid, UNI_IE_CONNID);
289 	    IE_ISGOOD(uni->restart_start) &&
290 	    u->u.restart_ack.restart.rclass == uni->restart_start.rclass &&
291 	    !IE_ISGOOD(u->u.restart_ack.connid) == !IE_ISGOOD(uni->connid_start) &&
292 	    (!IE_ISGOOD(uni->connid_start) ||
293 	       (u->u.restart_ack.connid.vpci == uni->connid_start.vpci &&
294 	        u->u.restart_ack.connid.vci == uni->connid_start.vci)))
297 	switch (uni_verify(uni, u->u.hdr.act)) {
300 		uni_respond_status_verify(uni, &u->u.hdr.cref,
306 		uni->glob_start = UNI_CALLSTATE_REST0;
307 		VERBOSE(uni, UNI_FAC_RESTART, 1,
313 		uni_respond_status_verify(uni, &u->u.hdr.cref,
337 	TIMER_STOP_UNI(uni, t316);
339 	uni->funcs->uni_output(uni, uni->arg, UNIAPI_RESET_confirm, 0, app);
341 	uni->glob_start = UNI_CALLSTATE_REST0;
342 	VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Start state := 0");
366 start_status(struct uni *uni, struct uni_msg *m, struct uni_all *u)
368 	(void)uni_decode_body(m, u, &uni->cx);
369 	MANDATE_IE(uni, u->u.status.callstate, UNI_IE_CALLSTATE);
370 	MANDATE_IE(uni, u->u.status.cause, UNI_IE_CAUSE);
371 	switch (uni_verify(uni, u->u.hdr.act)) {
373 		uni->glob_start = UNI_CALLSTATE_REST0;
374 		VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Start state := 0");
381 		uni_respond_status_verify(uni, &u->u.hdr.cref, uni->glob_start,
395 	     uni->glob_start == UNI_CALLSTATE_REST0) ||
397 	     uni->glob_start == UNI_CALLSTATE_REST1) ||
399 	     uni->glob_start == UNI_CALLSTATE_REST1)) {
415 		uni->funcs->uni_output(uni, uni->arg,
427 			uni->funcs->uni_output(uni, uni->arg,
438 uni_sig_respond(struct uni *uni, u_int sig, uint32_t cookie,
442 		VERBOSE(uni, UNI_FAC_ERR, 1, "Signal %d outside of range to "
451 	VERBOSE(uni, UNI_FAC_RESTART, 1,
453 	    respond_sigs[sig], uni->glob_respond, cookie);
461 		response_restart(uni, m, u);
467 		response_status(uni, m, u);
476 		response_error(uni,
483 		response_response(uni,
492 		response_t317(uni);
505 restart_forward(struct uni *uni, const struct uni_all *u)
513 	TAILQ_FOREACH(c, &uni->calls, link) {
533 response_restart(struct uni *uni, struct uni_msg *m, struct uni_all *u)
538 	if (uni->glob_respond == UNI_CALLSTATE_REST0) {
542 		(void)uni_decode_body(m, u, &uni->cx);
543 		MANDATE_IE(uni, u->u.restart.restart, UNI_IE_RESTART);
550 				(void)UNI_SAVE_IERR(&uni->cx, UNI_IE_CONNID,
555 				MANDATE_IE(uni, u->u.restart.connid, UNI_IE_CONNID);
558 		switch (uni_verify(uni, u->u.hdr.act)) {
561 			uni_respond_status_verify(uni, &u->u.hdr.cref,
569 			uni_respond_status_verify(uni, &u->u.hdr.cref,
581 		if (restart_forward(uni, u))
593 		uni_enq_coord(uni, SIGO_RESET_indication, 0, app);
595 		TIMER_START_UNI(uni, t317, uni->timer317);
596 		uni->glob_respond = UNI_CALLSTATE_REST2;
598 		VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Respond state := 2");
601 	} else if (uni->glob_respond == UNI_CALLSTATE_REST2) {
606 		uni_respond_status_mtype(uni, &u->u.hdr.cref, uni->glob_respond,
615 response_t317(struct uni *uni)
620 	if (uni->glob_respond != UNI_CALLSTATE_REST2) {
621 		VERBOSE0(uni, UNI_FAC_ERR, "T317 in state %d",
622 		    uni->glob_respond);
626 	VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Respond error");
632 		uni->funcs->uni_output(uni, uni->arg,
636 	uni->glob_respond = UNI_CALLSTATE_REST0;
637 	VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Respond state := 0");
644 response_error(struct uni *uni, struct uniapi_reset_error_response *c,
649 	if (uni->glob_respond != UNI_CALLSTATE_REST2) {
650 		uniapi_uni_error(uni, UNIAPI_ERROR_BAD_CALLSTATE, cookie, 0);
655 		uniapi_uni_error(uni, UNIAPI_ERROR_NOMEM, cookie, 0);
667 		if (IE_ISGOOD(uni->connid_respond))
669 			    uni->connid_respond.vpci,
670 			    uni->connid_respond.vci);
673 	if (uni_send_output(resp, uni) != 0) {
674 		uniapi_uni_error(uni, UNIAPI_ERROR_ENCODING, cookie, 0);
679 	uniapi_uni_error(uni, UNIAPI_OK, cookie, 0);
686 response_response(struct uni *uni, struct uniapi_reset_response *arg,
691 	if (uni->glob_respond != UNI_CALLSTATE_REST2) {
692 		uniapi_uni_error(uni, UNIAPI_ERROR_BAD_CALLSTATE, cookie, 0);
697 		uniapi_uni_error(uni, UNIAPI_ERROR_MISSING_IE, cookie, 0);
702 		uniapi_uni_error(uni, UNIAPI_ERROR_NOMEM, cookie, 0);
706 	TIMER_STOP_UNI(uni, t317);
713 	if (uni_send_output(resp, uni) != 0) {
714 		uniapi_uni_error(uni, UNIAPI_ERROR_ENCODING, cookie, 0);
721 	uni->glob_respond = UNI_CALLSTATE_REST0;
722 	VERBOSE(uni, UNI_FAC_RESTART, 1, "Reset-Respond state := 0");
724 	uniapi_uni_error(uni, UNIAPI_OK, cookie, 0);
748 response_status(struct uni *uni, struct uni_msg *m, struct uni_all *u)
750 	(void)uni_decode_body(m, u, &uni->cx);
751 	MANDATE_IE(uni, u->u.status.callstate, UNI_IE_CALLSTATE);
752 	MANDATE_IE(uni, u->u.status.cause, UNI_IE_CAUSE);
753 	switch (uni_verify(uni, u->u.hdr.act)) {
755 		if (uni->proto == UNIPROTO_UNI40U) {
756 			uni->glob_respond = UNI_CALLSTATE_REST0;
757 			VERBOSE(uni, UNI_FAC_RESTART, 1,
767 		uni_respond_status_verify(uni, &u->u.hdr.cref,
768 		    uni->glob_respond, NULL, 0);
781 	     uni->glob_respond == UNI_CALLSTATE_REST0) ||
783 	     uni->glob_respond == UNI_CALLSTATE_REST0) ||
785 	     uni->glob_respond == UNI_CALLSTATE_REST2)) {
802 		uni->funcs->uni_output(uni, uni->arg,
814 			uni->funcs->uni_output(uni, uni->arg,
824 t317_func(struct uni *uni)
826 	uni_enq_resp(uni, SIGR_T317, 0, NULL, NULL);