6213 	struct sctp_tmit_chunk *chk, *nchk;  in sctp_prune_prsctp()  local
6218 		TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {  in sctp_prune_prsctp()
6225 			if (PR_SCTP_BUF_ENABLED(chk->flags)) {  in sctp_prune_prsctp()
6230 				if (chk->rec.data.timetodrop.tv_sec > (long)srcv->sinfo_timetolive) {  in sctp_prune_prsctp()
6238 					if (chk->data) {  in sctp_prune_prsctp()
6246 						if (chk->sent > SCTP_DATAGRAM_UNSENT)  in sctp_prune_prsctp()
6250 						ret_spc = sctp_release_pr_sctp_chunk(stcb, chk,  in sctp_prune_prsctp()
6262 		TAILQ_FOREACH_SAFE(chk, &asoc->send_queue, sctp_next, nchk) {  in sctp_prune_prsctp()
6264 			if (PR_SCTP_BUF_ENABLED(chk->flags)) {  in sctp_prune_prsctp()
6265 				if (chk->rec.data.timetodrop.tv_sec > (long)srcv->sinfo_timetolive) {  in sctp_prune_prsctp()
6266 					if (chk->data) {  in sctp_prune_prsctp()
6273 						ret_spc = sctp_release_pr_sctp_chunk(stcb, chk,  in sctp_prune_prsctp()
6991 	struct sctp_tmit_chunk *chk, *nchk;  in sctp_toss_old_cookies()  local
6993 	TAILQ_FOREACH_SAFE(chk, &asoc->control_send_queue, sctp_next, nchk) {  in sctp_toss_old_cookies()
6994 		if (chk->rec.chunk_id.id == SCTP_COOKIE_ECHO) {  in sctp_toss_old_cookies()
6995 			TAILQ_REMOVE(&asoc->control_send_queue, chk, sctp_next);  in sctp_toss_old_cookies()
6997 			if (chk->data) {  in sctp_toss_old_cookies()
6998 				sctp_m_freem(chk->data);  in sctp_toss_old_cookies()
6999 				chk->data = NULL;  in sctp_toss_old_cookies()
7001 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_toss_old_cookies()
7010 	struct sctp_tmit_chunk *chk, *nchk;  in sctp_toss_old_asconf()  local
7014 	TAILQ_FOREACH_SAFE(chk, &asoc->asconf_send_queue, sctp_next, nchk) {  in sctp_toss_old_asconf()
7016 		if (chk->rec.chunk_id.id == SCTP_ASCONF) {  in sctp_toss_old_asconf()
7017 			if (chk->data) {  in sctp_toss_old_asconf()
7018 				acp = mtod(chk->data, struct sctp_asconf_chunk *);  in sctp_toss_old_asconf()
7024 			TAILQ_REMOVE(&asoc->asconf_send_queue, chk, sctp_next);  in sctp_toss_old_asconf()
7026 			if (chk->data) {  in sctp_toss_old_asconf()
7027 				sctp_m_freem(chk->data);  in sctp_toss_old_asconf()
7028 				chk->data = NULL;  in sctp_toss_old_asconf()
7030 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_toss_old_asconf()
7130 	struct sctp_tmit_chunk *chk, *nchk;  in sctp_clean_up_ctl()  local
7132 	TAILQ_FOREACH_SAFE(chk, &asoc->control_send_queue, sctp_next, nchk) {  in sctp_clean_up_ctl()
7133 		if ((chk->rec.chunk_id.id == SCTP_SELECTIVE_ACK) ||  in sctp_clean_up_ctl()
7134 		    (chk->rec.chunk_id.id == SCTP_NR_SELECTIVE_ACK) ||	/* EY */  in sctp_clean_up_ctl()
7135 		    (chk->rec.chunk_id.id == SCTP_HEARTBEAT_REQUEST) ||  in sctp_clean_up_ctl()
7136 		    (chk->rec.chunk_id.id == SCTP_HEARTBEAT_ACK) ||  in sctp_clean_up_ctl()
7137 		    (chk->rec.chunk_id.id == SCTP_FORWARD_CUM_TSN) ||  in sctp_clean_up_ctl()
7138 		    (chk->rec.chunk_id.id == SCTP_SHUTDOWN) ||  in sctp_clean_up_ctl()
7139 		    (chk->rec.chunk_id.id == SCTP_SHUTDOWN_ACK) ||  in sctp_clean_up_ctl()
7140 		    (chk->rec.chunk_id.id == SCTP_OPERATION_ERROR) ||  in sctp_clean_up_ctl()
7141 		    (chk->rec.chunk_id.id == SCTP_PACKET_DROPPED) ||  in sctp_clean_up_ctl()
7142 		    (chk->rec.chunk_id.id == SCTP_COOKIE_ACK) ||  in sctp_clean_up_ctl()
7143 		    (chk->rec.chunk_id.id == SCTP_ECN_CWR) ||  in sctp_clean_up_ctl()
7144 		    (chk->rec.chunk_id.id == SCTP_ASCONF_ACK)) {  in sctp_clean_up_ctl()
7147 			TAILQ_REMOVE(&asoc->control_send_queue, chk, sctp_next);  in sctp_clean_up_ctl()
7149 			if (chk->data) {  in sctp_clean_up_ctl()
7150 				sctp_m_freem(chk->data);  in sctp_clean_up_ctl()
7151 				chk->data = NULL;  in sctp_clean_up_ctl()
7153 			if (chk->rec.chunk_id.id == SCTP_FORWARD_CUM_TSN) {  in sctp_clean_up_ctl()
7156 			sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_clean_up_ctl()
7157 		} else if (chk->rec.chunk_id.id == SCTP_STREAM_RESET) {  in sctp_clean_up_ctl()
7159 			if (chk != asoc->str_reset) {  in sctp_clean_up_ctl()
7239 	struct sctp_tmit_chunk *chk;  in sctp_move_to_outqueue()  local
7380 	sctp_alloc_a_chunk(stcb, chk);  in sctp_move_to_outqueue()
7381 	if (chk == NULL) {  in sctp_move_to_outqueue()
7399 	memset(chk, 0, sizeof(*chk));  in sctp_move_to_outqueue()
7400 	chk->rec.data.rcv_flags = rcv_flags;  in sctp_move_to_outqueue()
7408 		chk->data = sp->data;  in sctp_move_to_outqueue()
7409 		chk->last_mbuf = sp->tail_mbuf;  in sctp_move_to_outqueue()
7416 		chk->data = SCTP_M_COPYM(sp->data, 0, to_move, M_NOWAIT);  in sctp_move_to_outqueue()
7417 		chk->last_mbuf = NULL;  in sctp_move_to_outqueue()
7418 		if (chk->data == NULL) {  in sctp_move_to_outqueue()
7420 			sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_move_to_outqueue()
7427 			sctp_log_mbc(chk->data, SCTP_MBUF_ICOPY);  in sctp_move_to_outqueue()
7455 	if (SCTP_BUF_IS_EXTENDED(chk->data)) {  in sctp_move_to_outqueue()
7456 		chk->copy_by_ref = 1;  in sctp_move_to_outqueue()
7458 		chk->copy_by_ref = 0;  in sctp_move_to_outqueue()
7464 	if (chk->last_mbuf == NULL) {  in sctp_move_to_outqueue()
7465 		chk->last_mbuf = chk->data;  in sctp_move_to_outqueue()
7466 		while (SCTP_BUF_NEXT(chk->last_mbuf) != NULL) {  in sctp_move_to_outqueue()
7467 			chk->last_mbuf = SCTP_BUF_NEXT(chk->last_mbuf);  in sctp_move_to_outqueue()
7486 	if (M_LEADINGSPACE(chk->data) < leading) {  in sctp_move_to_outqueue()
7499 				sp->data = chk->data;  in sctp_move_to_outqueue()
7500 				sp->tail_mbuf = chk->last_mbuf;  in sctp_move_to_outqueue()
7506 				sp->data = chk->data;  in sctp_move_to_outqueue()
7507 				SCTP_BUF_NEXT(chk->last_mbuf) = m_tmp;  in sctp_move_to_outqueue()
7511 			chk->data = NULL;  in sctp_move_to_outqueue()
7513 			sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_move_to_outqueue()
7518 			SCTP_BUF_NEXT(m) = chk->data;  in sctp_move_to_outqueue()
7519 			chk->data = m;  in sctp_move_to_outqueue()
7520 			M_ALIGN(chk->data, 4);  in sctp_move_to_outqueue()
7523 	SCTP_BUF_PREPEND(chk->data, SCTP_DATA_CHUNK_OVERHEAD(stcb), M_NOWAIT);  in sctp_move_to_outqueue()
7524 	if (chk->data == NULL) {  in sctp_move_to_outqueue()
7530 		sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_move_to_outqueue()
7537 	chk->book_size = chk->send_size = (uint16_t)(to_move + SCTP_DATA_CHUNK_OVERHEAD(stcb));  in sctp_move_to_outqueue()
7538 	chk->book_size_scale = 0;  in sctp_move_to_outqueue()
7539 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_move_to_outqueue()
7541 	chk->flags = 0;  in sctp_move_to_outqueue()
7542 	chk->asoc = &stcb->asoc;  in sctp_move_to_outqueue()
7543 	chk->pad_inplace = 0;  in sctp_move_to_outqueue()
7544 	chk->no_fr_allowed = 0;  in sctp_move_to_outqueue()
7548 			chk->rec.data.mid = 0;  in sctp_move_to_outqueue()
7550 			chk->rec.data.mid = strq->next_mid_ordered;  in sctp_move_to_outqueue()
7557 			chk->rec.data.mid = strq->next_mid_unordered;  in sctp_move_to_outqueue()
7562 			chk->rec.data.mid = strq->next_mid_ordered;  in sctp_move_to_outqueue()
7568 	chk->rec.data.sid = sp->sid;  in sctp_move_to_outqueue()
7569 	chk->rec.data.ppid = sp->ppid;  in sctp_move_to_outqueue()
7570 	chk->rec.data.context = sp->context;  in sctp_move_to_outqueue()
7571 	chk->rec.data.doing_fast_retransmit = 0;  in sctp_move_to_outqueue()
7573 	chk->rec.data.timetodrop = sp->ts;  in sctp_move_to_outqueue()
7574 	chk->flags = sp->act_flags;  in sctp_move_to_outqueue()
7577 		chk->whoTo = sp->net;  in sctp_move_to_outqueue()
7578 		atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_move_to_outqueue()
7580 		chk->whoTo = NULL;  in sctp_move_to_outqueue()
7583 		chk->auth_keyid = sp->auth_keyid;  in sctp_move_to_outqueue()
7584 		sctp_auth_key_acquire(stcb, chk->auth_keyid);  in sctp_move_to_outqueue()
7585 		chk->holds_key_ref = 1;  in sctp_move_to_outqueue()
7588 	chk->rec.data.tsn = atomic_fetchadd_int(&asoc->sending_seq, 1);  in sctp_move_to_outqueue()
7592 		    (uint32_t)((chk->rec.data.sid << 16) | (0x0000ffff & chk->rec.data.mid)),  in sctp_move_to_outqueue()
7593 		    chk->rec.data.tsn);  in sctp_move_to_outqueue()
7596 		dchkh = mtod(chk->data, struct sctp_data_chunk *);  in sctp_move_to_outqueue()
7598 		ndchkh = mtod(chk->data, struct sctp_idata_chunk *);  in sctp_move_to_outqueue()
7611 	asoc->out_tsnlog[asoc->tsn_out_at].tsn = chk->rec.data.tsn;  in sctp_move_to_outqueue()
7612 	asoc->out_tsnlog[asoc->tsn_out_at].strm = chk->rec.data.sid;  in sctp_move_to_outqueue()
7613 	asoc->out_tsnlog[asoc->tsn_out_at].seq = chk->rec.data.mid;  in sctp_move_to_outqueue()
7614 	asoc->out_tsnlog[asoc->tsn_out_at].sz = chk->send_size;  in sctp_move_to_outqueue()
7615 	asoc->out_tsnlog[asoc->tsn_out_at].flgs = chk->rec.data.rcv_flags;  in sctp_move_to_outqueue()
7623 		dchkh->ch.chunk_flags = chk->rec.data.rcv_flags;  in sctp_move_to_outqueue()
7624 		dchkh->dp.tsn = htonl(chk->rec.data.tsn);  in sctp_move_to_outqueue()
7626 		dchkh->dp.ssn = htons((uint16_t)chk->rec.data.mid);  in sctp_move_to_outqueue()
7627 		dchkh->dp.ppid = chk->rec.data.ppid;  in sctp_move_to_outqueue()
7628 		dchkh->ch.chunk_length = htons(chk->send_size);  in sctp_move_to_outqueue()
7631 		ndchkh->ch.chunk_flags = chk->rec.data.rcv_flags;  in sctp_move_to_outqueue()
7632 		ndchkh->dp.tsn = htonl(chk->rec.data.tsn);  in sctp_move_to_outqueue()
7635 		ndchkh->dp.mid = htonl(chk->rec.data.mid);  in sctp_move_to_outqueue()
7637 			ndchkh->dp.ppid_fsn.ppid = chk->rec.data.ppid;  in sctp_move_to_outqueue()
7641 		ndchkh->ch.chunk_length = htons(chk->send_size);  in sctp_move_to_outqueue()
7644 	if (chk->send_size < SCTP_SIZE32(chk->book_size)) {  in sctp_move_to_outqueue()
7649 		pads = SCTP_SIZE32(chk->book_size) - chk->send_size;  in sctp_move_to_outqueue()
7650 		lm = sctp_pad_lastmbuf(chk->data, pads, chk->last_mbuf);  in sctp_move_to_outqueue()
7652 			chk->last_mbuf = lm;  in sctp_move_to_outqueue()
7653 			chk->pad_inplace = 1;  in sctp_move_to_outqueue()
7655 		chk->send_size += pads;  in sctp_move_to_outqueue()
7657 	if (PR_SCTP_ENABLED(chk->flags)) {  in sctp_move_to_outqueue()
7690 	TAILQ_INSERT_TAIL(&asoc->send_queue, chk, sctp_next);  in sctp_move_to_outqueue()
7774 	struct sctp_tmit_chunk *chk;  in sctp_fix_ecn_echo()  local
7776 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_fix_ecn_echo()
7777 		if (chk->rec.chunk_id.id == SCTP_ECN_ECHO) {  in sctp_fix_ecn_echo()
7778 			chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_fix_ecn_echo()
7787 	struct sctp_tmit_chunk *chk;  in sctp_move_chunks_from_net()  local
7803 	TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {  in sctp_move_chunks_from_net()
7804 		if (chk->whoTo == net) {  in sctp_move_chunks_from_net()
7805 			sctp_free_remote_addr(chk->whoTo);  in sctp_move_chunks_from_net()
7806 			chk->whoTo = NULL;  in sctp_move_chunks_from_net()
7835 	struct sctp_tmit_chunk *chk, *nchk;  in sctp_med_chunk_output()  local
7911 		TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_med_chunk_output()
7912 			if ((chk->rec.chunk_id.id == SCTP_SELECTIVE_ACK) ||  in sctp_med_chunk_output()
7913 			    (chk->rec.chunk_id.id == SCTP_NR_SELECTIVE_ACK)) {  in sctp_med_chunk_output()
7914 				sack_goes_to = chk->whoTo;  in sctp_med_chunk_output()
7926 		TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {  in sctp_med_chunk_output()
7927 			if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8011 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_med_chunk_output()
8012 		if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8014 				chk->whoTo = asoc->alternate;  in sctp_med_chunk_output()
8016 				chk->whoTo = asoc->primary_destination;  in sctp_med_chunk_output()
8018 			atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_med_chunk_output()
8086 		TAILQ_FOREACH_SAFE(chk, &asoc->asconf_send_queue, sctp_next, nchk) {  in sctp_med_chunk_output()
8087 			if (chk->rec.chunk_id.id != SCTP_ASCONF) {  in sctp_med_chunk_output()
8090 			if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8101 				if (chk->whoTo != net) {  in sctp_med_chunk_output()
8105 			if (chk->data == NULL) {  in sctp_med_chunk_output()
8108 			if (chk->sent != SCTP_DATAGRAM_UNSENT &&  in sctp_med_chunk_output()
8109 			    chk->sent != SCTP_DATAGRAM_RESEND) {  in sctp_med_chunk_output()
8121 			    sctp_auth_is_required_chunk(chk->rec.chunk_id.id,  in sctp_med_chunk_output()
8127 			if ((chk->send_size < (int)(mtu - omtu)) ||  in sctp_med_chunk_output()
8128 			    (chk->flags & CHUNK_FLAGS_FRAGMENT_OK)) {  in sctp_med_chunk_output()
8144 				    (sctp_auth_is_required_chunk(chk->rec.chunk_id.id,  in sctp_med_chunk_output()
8151 					    chk->rec.chunk_id.id);  in sctp_med_chunk_output()
8154 				outchain = sctp_copy_mbufchain(chk->data, outchain, &endoutchain,  in sctp_med_chunk_output()
8155 				    (int)chk->rec.chunk_id.can_take_data,  in sctp_med_chunk_output()
8156 				    chk->send_size, chk->copy_by_ref);  in sctp_med_chunk_output()
8164 				if (mtu > (chk->send_size + omtu))  in sctp_med_chunk_output()
8165 					mtu -= (chk->send_size + omtu);  in sctp_med_chunk_output()
8168 				to_out += (chk->send_size + omtu);  in sctp_med_chunk_output()
8170 				if (chk->flags & CHUNK_FLAGS_FRAGMENT_OK) {  in sctp_med_chunk_output()
8173 				if (chk->rec.chunk_id.can_take_data)  in sctp_med_chunk_output()
8174 					chk->data = NULL;  in sctp_med_chunk_output()
8186 				chk->sent = SCTP_DATAGRAM_SENT;  in sctp_med_chunk_output()
8187 				if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8188 					chk->whoTo = net;  in sctp_med_chunk_output()
8191 				chk->snd_count++;  in sctp_med_chunk_output()
8289 		TAILQ_FOREACH_SAFE(chk, &asoc->control_send_queue, sctp_next, nchk) {  in sctp_med_chunk_output()
8291 			    (chk->rec.chunk_id.id == SCTP_ECN_ECHO) &&  in sctp_med_chunk_output()
8292 			    (chk->whoTo != sack_goes_to)) {  in sctp_med_chunk_output()
8298 				if (chk->whoTo == net) {  in sctp_med_chunk_output()
8312 			if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8323 				if (chk->whoTo != net) {  in sctp_med_chunk_output()
8328 			if (chk->data == NULL) {  in sctp_med_chunk_output()
8331 			if (chk->sent != SCTP_DATAGRAM_UNSENT) {  in sctp_med_chunk_output()
8348 			    sctp_auth_is_required_chunk(chk->rec.chunk_id.id,  in sctp_med_chunk_output()
8354 			if ((chk->send_size <= (int)(mtu - omtu)) ||  in sctp_med_chunk_output()
8355 			    (chk->flags & CHUNK_FLAGS_FRAGMENT_OK)) {  in sctp_med_chunk_output()
8371 				    (sctp_auth_is_required_chunk(chk->rec.chunk_id.id,  in sctp_med_chunk_output()
8378 					    chk->rec.chunk_id.id);  in sctp_med_chunk_output()
8381 				outchain = sctp_copy_mbufchain(chk->data, outchain, &endoutchain,  in sctp_med_chunk_output()
8382 				    (int)chk->rec.chunk_id.can_take_data,  in sctp_med_chunk_output()
8383 				    chk->send_size, chk->copy_by_ref);  in sctp_med_chunk_output()
8391 				if (mtu > (chk->send_size + omtu))  in sctp_med_chunk_output()
8392 					mtu -= (chk->send_size + omtu);  in sctp_med_chunk_output()
8395 				to_out += (chk->send_size + omtu);  in sctp_med_chunk_output()
8397 				if (chk->flags & CHUNK_FLAGS_FRAGMENT_OK) {  in sctp_med_chunk_output()
8400 				if (chk->rec.chunk_id.can_take_data)  in sctp_med_chunk_output()
8401 					chk->data = NULL;  in sctp_med_chunk_output()
8403 				if ((chk->rec.chunk_id.id == SCTP_SELECTIVE_ACK) ||  in sctp_med_chunk_output()
8404 				    (chk->rec.chunk_id.id == SCTP_NR_SELECTIVE_ACK) ||	/* EY */  in sctp_med_chunk_output()
8405 				    (chk->rec.chunk_id.id == SCTP_HEARTBEAT_REQUEST) ||  in sctp_med_chunk_output()
8406 				    (chk->rec.chunk_id.id == SCTP_HEARTBEAT_ACK) ||  in sctp_med_chunk_output()
8407 				    (chk->rec.chunk_id.id == SCTP_SHUTDOWN) ||  in sctp_med_chunk_output()
8408 				    (chk->rec.chunk_id.id == SCTP_SHUTDOWN_ACK) ||  in sctp_med_chunk_output()
8409 				    (chk->rec.chunk_id.id == SCTP_OPERATION_ERROR) ||  in sctp_med_chunk_output()
8410 				    (chk->rec.chunk_id.id == SCTP_COOKIE_ACK) ||  in sctp_med_chunk_output()
8411 				    (chk->rec.chunk_id.id == SCTP_ECN_CWR) ||  in sctp_med_chunk_output()
8412 				    (chk->rec.chunk_id.id == SCTP_PACKET_DROPPED) ||  in sctp_med_chunk_output()
8413 				    (chk->rec.chunk_id.id == SCTP_ASCONF_ACK)) {  in sctp_med_chunk_output()
8414 					if (chk->rec.chunk_id.id == SCTP_HEARTBEAT_REQUEST) {  in sctp_med_chunk_output()
8418 					if ((chk->rec.chunk_id.id == SCTP_SELECTIVE_ACK) ||  in sctp_med_chunk_output()
8419 					    (chk->rec.chunk_id.id == SCTP_NR_SELECTIVE_ACK)) {  in sctp_med_chunk_output()
8436 					if (chk->rec.chunk_id.id == SCTP_COOKIE_ECHO) {  in sctp_med_chunk_output()
8439 					} else if (chk->rec.chunk_id.id == SCTP_ECN_ECHO) {  in sctp_med_chunk_output()
8454 					chk->sent = SCTP_DATAGRAM_SENT;  in sctp_med_chunk_output()
8455 					if (chk->whoTo == NULL) {  in sctp_med_chunk_output()
8456 						chk->whoTo = net;  in sctp_med_chunk_output()
8459 					chk->snd_count++;  in sctp_med_chunk_output()
8641 			TAILQ_FOREACH_SAFE(chk, &asoc->send_queue, sctp_next, nchk) {  in sctp_med_chunk_output()
8652 				if ((chk->whoTo != NULL) &&  in sctp_med_chunk_output()
8653 				    (chk->whoTo != net)) {  in sctp_med_chunk_output()
8661 					    (chk->whoTo == NULL)) {  in sctp_med_chunk_output()
8665 					    (chk->whoTo == NULL)) {  in sctp_med_chunk_output()
8669 				if ((chk->send_size > omtu) && ((chk->flags & CHUNK_FLAGS_FRAGMENT_OK) == 0)) {  in sctp_med_chunk_output()
8683 					    chk->send_size, mtu);  in sctp_med_chunk_output()
8684 					chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;  in sctp_med_chunk_output()
8690 					dchkh = mtod(chk->data, struct sctp_data_chunk *);  in sctp_med_chunk_output()
8693 				if (((chk->send_size <= mtu) && (chk->send_size <= r_mtu)) ||  in sctp_med_chunk_output()
8694 				    ((chk->flags & CHUNK_FLAGS_FRAGMENT_OK) && (chk->send_size <= asoc->peers_rwnd))) {  in sctp_med_chunk_output()
8710 							auth_keyid = chk->auth_keyid;  in sctp_med_chunk_output()
8718 							auth_keyid = chk->auth_keyid;  in sctp_med_chunk_output()
8720 						} else if (auth_keyid != chk->auth_keyid) {  in sctp_med_chunk_output()
8728 					outchain = sctp_copy_mbufchain(chk->data, outchain, &endoutchain, 0,  in sctp_med_chunk_output()
8729 					    chk->send_size, chk->copy_by_ref);  in sctp_med_chunk_output()
8741 					if (chk->flags & CHUNK_FLAGS_FRAGMENT_OK) {  in sctp_med_chunk_output()
8745 					if (mtu > chk->send_size)  in sctp_med_chunk_output()
8746 						mtu -= chk->send_size;  in sctp_med_chunk_output()
8750 					if (r_mtu > chk->send_size)  in sctp_med_chunk_output()
8751 						r_mtu -= chk->send_size;  in sctp_med_chunk_output()
8755 					to_out += chk->send_size;  in sctp_med_chunk_output()
8764 					chk->window_probe = 0;  in sctp_med_chunk_output()
8765 					data_list[bundle_at++] = chk;  in sctp_med_chunk_output()
8769 					if (chk->sent == SCTP_DATAGRAM_UNSENT) {  in sctp_med_chunk_output()
8770 						if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) == 0) {  in sctp_med_chunk_output()
8775 						if (((chk->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) == SCTP_DATA_LAST_FRAG) &&  in sctp_med_chunk_output()
8776 						    ((chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) == 0))  in sctp_med_chunk_output()
8959 	struct sctp_tmit_chunk *chk;  in sctp_queue_op_err()  local
8991 	sctp_alloc_a_chunk(stcb, chk);  in sctp_queue_op_err()
8992 	if (chk == NULL) {  in sctp_queue_op_err()
8997 	chk->copy_by_ref = 0;  in sctp_queue_op_err()
8998 	chk->rec.chunk_id.id = SCTP_OPERATION_ERROR;  in sctp_queue_op_err()
8999 	chk->rec.chunk_id.can_take_data = 0;  in sctp_queue_op_err()
9000 	chk->flags = 0;  in sctp_queue_op_err()
9001 	chk->send_size = (uint16_t)chunk_length;  in sctp_queue_op_err()
9002 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_queue_op_err()
9003 	chk->snd_count = 0;  in sctp_queue_op_err()
9004 	chk->asoc = &stcb->asoc;  in sctp_queue_op_err()
9005 	chk->data = op_err;  in sctp_queue_op_err()
9006 	chk->whoTo = NULL;  in sctp_queue_op_err()
9010 	hdr->chunk_length = htons(chk->send_size);  in sctp_queue_op_err()
9011 	TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_queue_op_err()
9012 	chk->asoc->ctrl_queue_cnt++;  in sctp_queue_op_err()
9029 	struct sctp_tmit_chunk *chk;  in sctp_send_cookie_echo()  local
9081 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_cookie_echo()
9082 	if (chk == NULL) {  in sctp_send_cookie_echo()
9087 	chk->copy_by_ref = 0;  in sctp_send_cookie_echo()
9088 	chk->rec.chunk_id.id = SCTP_COOKIE_ECHO;  in sctp_send_cookie_echo()
9089 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_cookie_echo()
9090 	chk->flags = CHUNK_FLAGS_FRAGMENT_OK;  in sctp_send_cookie_echo()
9091 	chk->send_size = SCTP_SIZE32(plen);  in sctp_send_cookie_echo()
9092 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_cookie_echo()
9093 	chk->snd_count = 0;  in sctp_send_cookie_echo()
9094 	chk->asoc = &stcb->asoc;  in sctp_send_cookie_echo()
9095 	chk->data = cookie;  in sctp_send_cookie_echo()
9096 	chk->whoTo = net;  in sctp_send_cookie_echo()
9097 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_cookie_echo()
9098 	TAILQ_INSERT_HEAD(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_cookie_echo()
9099 	chk->asoc->ctrl_queue_cnt++;  in sctp_send_cookie_echo()
9115 	struct sctp_tmit_chunk *chk;  in sctp_send_heartbeat_ack()  local
9137 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_heartbeat_ack()
9138 	if (chk == NULL) {  in sctp_send_heartbeat_ack()
9143 	chk->copy_by_ref = 0;  in sctp_send_heartbeat_ack()
9144 	chk->rec.chunk_id.id = SCTP_HEARTBEAT_ACK;  in sctp_send_heartbeat_ack()
9145 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_heartbeat_ack()
9146 	chk->flags = 0;  in sctp_send_heartbeat_ack()
9147 	chk->send_size = chk_length;  in sctp_send_heartbeat_ack()
9148 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_heartbeat_ack()
9149 	chk->snd_count = 0;  in sctp_send_heartbeat_ack()
9150 	chk->asoc = &stcb->asoc;  in sctp_send_heartbeat_ack()
9151 	chk->data = outchain;  in sctp_send_heartbeat_ack()
9152 	chk->whoTo = net;  in sctp_send_heartbeat_ack()
9153 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_heartbeat_ack()
9154 	TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_heartbeat_ack()
9155 	chk->asoc->ctrl_queue_cnt++;  in sctp_send_heartbeat_ack()
9164 	struct sctp_tmit_chunk *chk;  in sctp_send_cookie_ack()  local
9174 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_cookie_ack()
9175 	if (chk == NULL) {  in sctp_send_cookie_ack()
9180 	chk->copy_by_ref = 0;  in sctp_send_cookie_ack()
9181 	chk->rec.chunk_id.id = SCTP_COOKIE_ACK;  in sctp_send_cookie_ack()
9182 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_cookie_ack()
9183 	chk->flags = 0;  in sctp_send_cookie_ack()
9184 	chk->send_size = sizeof(struct sctp_chunkhdr);  in sctp_send_cookie_ack()
9185 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_cookie_ack()
9186 	chk->snd_count = 0;  in sctp_send_cookie_ack()
9187 	chk->asoc = &stcb->asoc;  in sctp_send_cookie_ack()
9188 	chk->data = cookie_ack;  in sctp_send_cookie_ack()
9189 	if (chk->asoc->last_control_chunk_from != NULL) {  in sctp_send_cookie_ack()
9190 		chk->whoTo = chk->asoc->last_control_chunk_from;  in sctp_send_cookie_ack()
9191 		atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_cookie_ack()
9193 		chk->whoTo = NULL;  in sctp_send_cookie_ack()
9198 	hdr->chunk_length = htons(chk->send_size);  in sctp_send_cookie_ack()
9199 	SCTP_BUF_LEN(cookie_ack) = chk->send_size;  in sctp_send_cookie_ack()
9200 	TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_cookie_ack()
9201 	chk->asoc->ctrl_queue_cnt++;  in sctp_send_cookie_ack()
9211 	struct sctp_tmit_chunk *chk;  in sctp_send_shutdown_ack()  local
9219 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_shutdown_ack()
9220 	if (chk == NULL) {  in sctp_send_shutdown_ack()
9225 	chk->copy_by_ref = 0;  in sctp_send_shutdown_ack()
9226 	chk->rec.chunk_id.id = SCTP_SHUTDOWN_ACK;  in sctp_send_shutdown_ack()
9227 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_shutdown_ack()
9228 	chk->flags = 0;  in sctp_send_shutdown_ack()
9229 	chk->send_size = sizeof(struct sctp_chunkhdr);  in sctp_send_shutdown_ack()
9230 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_shutdown_ack()
9231 	chk->snd_count = 0;  in sctp_send_shutdown_ack()
9232 	chk->asoc = &stcb->asoc;  in sctp_send_shutdown_ack()
9233 	chk->data = m_shutdown_ack;  in sctp_send_shutdown_ack()
9234 	chk->whoTo = net;  in sctp_send_shutdown_ack()
9235 	if (chk->whoTo) {  in sctp_send_shutdown_ack()
9236 		atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_shutdown_ack()
9241 	ack_cp->ch.chunk_length = htons(chk->send_size);  in sctp_send_shutdown_ack()
9242 	SCTP_BUF_LEN(m_shutdown_ack) = chk->send_size;  in sctp_send_shutdown_ack()
9243 	TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_shutdown_ack()
9244 	chk->asoc->ctrl_queue_cnt++;  in sctp_send_shutdown_ack()
9254 	struct sctp_tmit_chunk *chk;  in sctp_send_shutdown()  local
9256 	TAILQ_FOREACH(chk, &stcb->asoc.control_send_queue, sctp_next) {  in sctp_send_shutdown()
9257 		if (chk->rec.chunk_id.id == SCTP_SHUTDOWN) {  in sctp_send_shutdown()
9259 			if (chk->whoTo) {  in sctp_send_shutdown()
9260 				sctp_free_remote_addr(chk->whoTo);  in sctp_send_shutdown()
9261 				chk->whoTo = NULL;  in sctp_send_shutdown()
9266 	if (chk == NULL) {  in sctp_send_shutdown()
9273 		sctp_alloc_a_chunk(stcb, chk);  in sctp_send_shutdown()
9274 		if (chk == NULL) {  in sctp_send_shutdown()
9279 		chk->copy_by_ref = 0;  in sctp_send_shutdown()
9280 		chk->rec.chunk_id.id = SCTP_SHUTDOWN;  in sctp_send_shutdown()
9281 		chk->rec.chunk_id.can_take_data = 1;  in sctp_send_shutdown()
9282 		chk->flags = 0;  in sctp_send_shutdown()
9283 		chk->send_size = sizeof(struct sctp_shutdown_chunk);  in sctp_send_shutdown()
9284 		chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_shutdown()
9285 		chk->snd_count = 0;  in sctp_send_shutdown()
9286 		chk->asoc = &stcb->asoc;  in sctp_send_shutdown()
9287 		chk->data = m_shutdown;  in sctp_send_shutdown()
9288 		chk->whoTo = net;  in sctp_send_shutdown()
9289 		if (chk->whoTo) {  in sctp_send_shutdown()
9290 			atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_shutdown()
9295 		shutdown_cp->ch.chunk_length = htons(chk->send_size);  in sctp_send_shutdown()
9297 		SCTP_BUF_LEN(m_shutdown) = chk->send_size;  in sctp_send_shutdown()
9298 		TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_shutdown()
9299 		chk->asoc->ctrl_queue_cnt++;  in sctp_send_shutdown()
9301 		TAILQ_REMOVE(&stcb->asoc.control_send_queue, chk, sctp_next);  in sctp_send_shutdown()
9302 		chk->whoTo = net;  in sctp_send_shutdown()
9303 		if (chk->whoTo) {  in sctp_send_shutdown()
9304 			atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_shutdown()
9306 		shutdown_cp = mtod(chk->data, struct sctp_shutdown_chunk *);  in sctp_send_shutdown()
9308 		TAILQ_INSERT_TAIL(&stcb->asoc.control_send_queue, chk, sctp_next);  in sctp_send_shutdown()
9320 	struct sctp_tmit_chunk *chk;  in sctp_send_asconf()  local
9338 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_asconf()
9339 	if (chk == NULL) {  in sctp_send_asconf()
9345 	chk->copy_by_ref = 0;  in sctp_send_asconf()
9346 	chk->rec.chunk_id.id = SCTP_ASCONF;  in sctp_send_asconf()
9347 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_asconf()
9348 	chk->flags = CHUNK_FLAGS_FRAGMENT_OK;  in sctp_send_asconf()
9349 	chk->data = m_asconf;  in sctp_send_asconf()
9350 	chk->send_size = len;  in sctp_send_asconf()
9351 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_asconf()
9352 	chk->snd_count = 0;  in sctp_send_asconf()
9353 	chk->asoc = &stcb->asoc;  in sctp_send_asconf()
9354 	chk->whoTo = net;  in sctp_send_asconf()
9355 	if (chk->whoTo) {  in sctp_send_asconf()
9356 		atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_asconf()
9358 	TAILQ_INSERT_TAIL(&chk->asoc->asconf_send_queue, chk, sctp_next);  in sctp_send_asconf()
9359 	chk->asoc->ctrl_queue_cnt++;  in sctp_send_asconf()
9370 	struct sctp_tmit_chunk *chk;  in sctp_send_asconf_ack()  local
9428 		sctp_alloc_a_chunk(stcb, chk);  in sctp_send_asconf_ack()
9429 		if (chk == NULL) {  in sctp_send_asconf_ack()
9435 		chk->copy_by_ref = 0;  in sctp_send_asconf_ack()
9436 		chk->rec.chunk_id.id = SCTP_ASCONF_ACK;  in sctp_send_asconf_ack()
9437 		chk->rec.chunk_id.can_take_data = 1;  in sctp_send_asconf_ack()
9438 		chk->flags = CHUNK_FLAGS_FRAGMENT_OK;  in sctp_send_asconf_ack()
9439 		chk->whoTo = net;  in sctp_send_asconf_ack()
9440 		if (chk->whoTo) {  in sctp_send_asconf_ack()
9441 			atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_asconf_ack()
9443 		chk->data = m_ack;  in sctp_send_asconf_ack()
9444 		chk->send_size = ack->len;  in sctp_send_asconf_ack()
9445 		chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_asconf_ack()
9446 		chk->snd_count = 0;  in sctp_send_asconf_ack()
9447 		chk->asoc = &stcb->asoc;  in sctp_send_asconf_ack()
9449 		TAILQ_INSERT_TAIL(&chk->asoc->control_send_queue, chk, sctp_next);  in sctp_send_asconf_ack()
9450 		chk->asoc->ctrl_queue_cnt++;  in sctp_send_asconf_ack()
9474 	struct sctp_tmit_chunk *chk, *fwd;  in sctp_chunk_retransmission()  local
9510 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_chunk_retransmission()
9511 		if ((chk->rec.chunk_id.id == SCTP_COOKIE_ECHO) ||  in sctp_chunk_retransmission()
9512 		    (chk->rec.chunk_id.id == SCTP_STREAM_RESET) ||  in sctp_chunk_retransmission()
9513 		    (chk->rec.chunk_id.id == SCTP_FORWARD_CUM_TSN)) {  in sctp_chunk_retransmission()
9514 			if (chk->sent != SCTP_DATAGRAM_RESEND) {  in sctp_chunk_retransmission()
9517 			if (chk->rec.chunk_id.id == SCTP_STREAM_RESET) {  in sctp_chunk_retransmission()
9518 				if (chk != asoc->str_reset) {  in sctp_chunk_retransmission()
9527 			if (chk->rec.chunk_id.id == SCTP_FORWARD_CUM_TSN) {  in sctp_chunk_retransmission()
9535 			    (sctp_auth_is_required_chunk(chk->rec.chunk_id.id,  in sctp_chunk_retransmission()
9540 				    chk->rec.chunk_id.id);  in sctp_chunk_retransmission()
9543 			m = sctp_copy_mbufchain(chk->data, m, &endofchain, 0, chk->send_size, chk->copy_by_ref);  in sctp_chunk_retransmission()
9559 		if (chk->rec.chunk_id.id == SCTP_COOKIE_ECHO) {  in sctp_chunk_retransmission()
9560 			sctp_timer_start(SCTP_TIMER_TYPE_COOKIE, inp, stcb, chk->whoTo);  in sctp_chunk_retransmission()
9562 		} else if (chk->rec.chunk_id.id == SCTP_ASCONF) {  in sctp_chunk_retransmission()
9564 			sctp_timer_start(SCTP_TIMER_TYPE_ASCONF, inp, stcb, chk->whoTo);  in sctp_chunk_retransmission()
9567 		chk->snd_count++;	/* update our count */  in sctp_chunk_retransmission()
9568 		if ((error = sctp_lowlevel_chunk_output(inp, stcb, chk->whoTo,  in sctp_chunk_retransmission()
9569 		    (struct sockaddr *)&chk->whoTo->ro._l_addr, m,  in sctp_chunk_retransmission()
9573 		    chk->whoTo->port, NULL,  in sctp_chunk_retransmission()
9595 		chk->sent = SCTP_DATAGRAM_SENT;  in sctp_chunk_retransmission()
9621 	TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {  in sctp_chunk_retransmission()
9622 		if (chk->sent != SCTP_DATAGRAM_RESEND) {  in sctp_chunk_retransmission()
9626 		if (chk->data == NULL) {  in sctp_chunk_retransmission()
9628 			    chk->rec.data.tsn, chk->snd_count, chk->sent);  in sctp_chunk_retransmission()
9632 		    (chk->snd_count >= SCTP_BASE_SYSCTL(sctp_max_retran_chunk))) {  in sctp_chunk_retransmission()
9637 			    chk->rec.data.tsn, chk->snd_count);  in sctp_chunk_retransmission()
9648 		net = chk->whoTo;  in sctp_chunk_retransmission()
9671 			if (tsn == chk->rec.data.tsn) {  in sctp_chunk_retransmission()
9687 				chk->window_probe = 1;  in sctp_chunk_retransmission()
9688 				chk->whoTo->window_probe = 1;  in sctp_chunk_retransmission()
9697 		if (chk->rec.data.doing_fast_retransmit == 0) {  in sctp_chunk_retransmission()
9725 		if ((chk->send_size <= (mtu - dmtu)) ||  in sctp_chunk_retransmission()
9726 		    (chk->flags & CHUNK_FLAGS_FRAGMENT_OK)) {  in sctp_chunk_retransmission()
9736 					auth_keyid = chk->auth_keyid;  in sctp_chunk_retransmission()
9740 					auth_keyid = chk->auth_keyid;  in sctp_chunk_retransmission()
9742 				} else if (chk->auth_keyid != auth_keyid) {  in sctp_chunk_retransmission()
9747 			m = sctp_copy_mbufchain(chk->data, m, &endofchain, 0, chk->send_size, chk->copy_by_ref);  in sctp_chunk_retransmission()
9753 			if (chk->flags & CHUNK_FLAGS_FRAGMENT_OK) {  in sctp_chunk_retransmission()
9757 			if (mtu > (chk->send_size + dmtu))  in sctp_chunk_retransmission()
9758 				mtu -= (chk->send_size + dmtu);  in sctp_chunk_retransmission()
9761 			data_list[bundle_at++] = chk;  in sctp_chunk_retransmission()
9771 			for (fwd = TAILQ_NEXT(chk, sctp_next); fwd != NULL; fwd = TAILQ_NEXT(fwd, sctp_next)) {  in sctp_chunk_retransmission()
10331 	struct sctp_tmit_chunk *chk, *at, *tp1, *last;  in send_forward_tsn()  local
10341 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in send_forward_tsn()
10342 		if (chk->rec.chunk_id.id == SCTP_FORWARD_CUM_TSN) {  in send_forward_tsn()
10344 			chk->sent = SCTP_DATAGRAM_UNSENT;  in send_forward_tsn()
10345 			chk->snd_count = 0;  in send_forward_tsn()
10347 			if (chk->whoTo) {  in send_forward_tsn()
10348 				sctp_free_remote_addr(chk->whoTo);  in send_forward_tsn()
10349 				chk->whoTo = NULL;  in send_forward_tsn()
10355 	sctp_alloc_a_chunk(stcb, chk);  in send_forward_tsn()
10356 	if (chk == NULL) {  in send_forward_tsn()
10360 	chk->copy_by_ref = 0;  in send_forward_tsn()
10366 	chk->rec.chunk_id.id = SCTP_FORWARD_CUM_TSN;  in send_forward_tsn()
10367 	chk->rec.chunk_id.can_take_data = 0;  in send_forward_tsn()
10368 	chk->flags = 0;  in send_forward_tsn()
10369 	chk->asoc = asoc;  in send_forward_tsn()
10370 	chk->whoTo = NULL;  in send_forward_tsn()
10371 	chk->data = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);  in send_forward_tsn()
10372 	if (chk->data == NULL) {  in send_forward_tsn()
10373 		sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in send_forward_tsn()
10376 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in send_forward_tsn()
10377 	chk->sent = SCTP_DATAGRAM_UNSENT;  in send_forward_tsn()
10378 	chk->snd_count = 0;  in send_forward_tsn()
10379 	TAILQ_INSERT_TAIL(&asoc->control_send_queue, chk, sctp_next);  in send_forward_tsn()
10386 	SCTP_BUF_LEN(chk->data) = 0;  in send_forward_tsn()
10406 	cnt_of_space = (unsigned int)M_TRAILINGSPACE(chk->data);  in send_forward_tsn()
10474 	chk->send_size = space_needed;  in send_forward_tsn()
10476 	fwdtsn = mtod(chk->data, struct sctp_forward_tsn_chunk *);  in send_forward_tsn()
10477 	fwdtsn->ch.chunk_length = htons(chk->send_size);  in send_forward_tsn()
10485 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in send_forward_tsn()
10551 	struct sctp_tmit_chunk *chk, *a_chk;  in sctp_send_sack()  local
10584 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_send_sack()
10585 		if (chk->rec.chunk_id.id == type) {  in sctp_send_sack()
10587 			TAILQ_REMOVE(&asoc->control_send_queue, chk, sctp_next);  in sctp_send_sack()
10589 			a_chk = chk;  in sctp_send_sack()
11373 	struct sctp_tmit_chunk *chk;  in sctp_send_hb()  local
11394 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_hb()
11395 	if (chk == NULL) {  in sctp_send_hb()
11400 	chk->copy_by_ref = 0;  in sctp_send_hb()
11401 	chk->rec.chunk_id.id = SCTP_HEARTBEAT_REQUEST;  in sctp_send_hb()
11402 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_hb()
11403 	chk->flags = 0;  in sctp_send_hb()
11404 	chk->asoc = &stcb->asoc;  in sctp_send_hb()
11405 	chk->send_size = sizeof(struct sctp_heartbeat_chunk);  in sctp_send_hb()
11407 	chk->data = sctp_get_mbuf_for_msg(chk->send_size, 0, M_NOWAIT, 1, MT_HEADER);  in sctp_send_hb()
11408 	if (chk->data == NULL) {  in sctp_send_hb()
11409 		sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_send_hb()
11412 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_hb()
11413 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_hb()
11414 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_hb()
11415 	chk->snd_count = 0;  in sctp_send_hb()
11416 	chk->whoTo = net;  in sctp_send_hb()
11417 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_hb()
11419 	hb = mtod(chk->data, struct sctp_heartbeat_chunk *);  in sctp_send_hb()
11424 	hb->ch.chunk_length = htons(chk->send_size);  in sctp_send_hb()
11460 		if (chk->data) {  in sctp_send_hb()
11461 			sctp_m_freem(chk->data);  in sctp_send_hb()
11462 			chk->data = NULL;  in sctp_send_hb()
11464 		sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_send_hb()
11469 	TAILQ_INSERT_TAIL(&stcb->asoc.control_send_queue, chk, sctp_next);  in sctp_send_hb()
11481 	struct sctp_tmit_chunk *chk;  in sctp_send_ecn_echo()  local
11488 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_send_ecn_echo()
11489 		if ((chk->rec.chunk_id.id == SCTP_ECN_ECHO) && (net == chk->whoTo)) {  in sctp_send_ecn_echo()
11493 			ecne = mtod(chk->data, struct sctp_ecne_chunk *);  in sctp_send_ecn_echo()
11506 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_ecn_echo()
11507 	if (chk == NULL) {  in sctp_send_ecn_echo()
11511 	chk->copy_by_ref = 0;  in sctp_send_ecn_echo()
11512 	chk->rec.chunk_id.id = SCTP_ECN_ECHO;  in sctp_send_ecn_echo()
11513 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_ecn_echo()
11514 	chk->flags = 0;  in sctp_send_ecn_echo()
11515 	chk->asoc = &stcb->asoc;  in sctp_send_ecn_echo()
11516 	chk->send_size = sizeof(struct sctp_ecne_chunk);  in sctp_send_ecn_echo()
11517 	chk->data = sctp_get_mbuf_for_msg(chk->send_size, 0, M_NOWAIT, 1, MT_HEADER);  in sctp_send_ecn_echo()
11518 	if (chk->data == NULL) {  in sctp_send_ecn_echo()
11519 		sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_send_ecn_echo()
11522 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_ecn_echo()
11523 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_ecn_echo()
11524 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_ecn_echo()
11525 	chk->snd_count = 0;  in sctp_send_ecn_echo()
11526 	chk->whoTo = net;  in sctp_send_ecn_echo()
11527 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_ecn_echo()
11530 	ecne = mtod(chk->data, struct sctp_ecne_chunk *);  in sctp_send_ecn_echo()
11536 	TAILQ_INSERT_HEAD(&stcb->asoc.control_send_queue, chk, sctp_next);  in sctp_send_ecn_echo()
11546 	struct sctp_tmit_chunk *chk;  in sctp_send_packet_dropped()  local
11569 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_packet_dropped()
11570 	if (chk == NULL) {  in sctp_send_packet_dropped()
11573 	chk->copy_by_ref = 0;  in sctp_send_packet_dropped()
11574 	chk->rec.chunk_id.id = SCTP_PACKET_DROPPED;  in sctp_send_packet_dropped()
11575 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_packet_dropped()
11576 	chk->flags = 0;  in sctp_send_packet_dropped()
11578 	chk->send_size = len;  in sctp_send_packet_dropped()
11599 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_send_packet_dropped()
11618 	chk->asoc = &stcb->asoc;  in sctp_send_packet_dropped()
11619 	chk->data = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);  in sctp_send_packet_dropped()
11620 	if (chk->data == NULL) {  in sctp_send_packet_dropped()
11622 		sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_send_packet_dropped()
11625 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_packet_dropped()
11626 	drp = mtod(chk->data, struct sctp_pktdrop_chunk *);  in sctp_send_packet_dropped()
11628 		sctp_m_freem(chk->data);  in sctp_send_packet_dropped()
11629 		chk->data = NULL;  in sctp_send_packet_dropped()
11632 	chk->book_size = SCTP_SIZE32((chk->send_size + sizeof(struct sctp_pktdrop_chunk) +  in sctp_send_packet_dropped()
11634 	chk->book_size_scale = 0;  in sctp_send_packet_dropped()
11642 		chk->send_size = (uint16_t)(len - sizeof(struct sctp_pktdrop_chunk));  in sctp_send_packet_dropped()
11643 		len = chk->send_size;  in sctp_send_packet_dropped()
11652 	chk->send_size += sizeof(struct sctp_pktdrop_chunk);  in sctp_send_packet_dropped()
11653 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_packet_dropped()
11654 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_packet_dropped()
11655 	chk->snd_count = 0;  in sctp_send_packet_dropped()
11658 		chk->whoTo = net;  in sctp_send_packet_dropped()
11659 		atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_packet_dropped()
11661 		chk->whoTo = NULL;  in sctp_send_packet_dropped()
11664 	drp->ch.chunk_length = htons(chk->send_size);  in sctp_send_packet_dropped()
11685 	TAILQ_INSERT_TAIL(&stcb->asoc.control_send_queue, chk, sctp_next);  in sctp_send_packet_dropped()
11694 	struct sctp_tmit_chunk *chk;  in sctp_send_cwr()  local
11701 	TAILQ_FOREACH(chk, &asoc->control_send_queue, sctp_next) {  in sctp_send_cwr()
11702 		if ((chk->rec.chunk_id.id == SCTP_ECN_CWR) && (net == chk->whoTo)) {  in sctp_send_cwr()
11709 			cwr = mtod(chk->data, struct sctp_cwr_chunk *);  in sctp_send_cwr()
11721 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_cwr()
11722 	if (chk == NULL) {  in sctp_send_cwr()
11725 	chk->copy_by_ref = 0;  in sctp_send_cwr()
11726 	chk->rec.chunk_id.id = SCTP_ECN_CWR;  in sctp_send_cwr()
11727 	chk->rec.chunk_id.can_take_data = 1;  in sctp_send_cwr()
11728 	chk->flags = 0;  in sctp_send_cwr()
11729 	chk->asoc = asoc;  in sctp_send_cwr()
11730 	chk->send_size = sizeof(struct sctp_cwr_chunk);  in sctp_send_cwr()
11731 	chk->data = sctp_get_mbuf_for_msg(chk->send_size, 0, M_NOWAIT, 1, MT_HEADER);  in sctp_send_cwr()
11732 	if (chk->data == NULL) {  in sctp_send_cwr()
11733 		sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);  in sctp_send_cwr()
11736 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_cwr()
11737 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_cwr()
11738 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_cwr()
11739 	chk->snd_count = 0;  in sctp_send_cwr()
11740 	chk->whoTo = net;  in sctp_send_cwr()
11741 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_cwr()
11742 	cwr = mtod(chk->data, struct sctp_cwr_chunk *);  in sctp_send_cwr()
11747 	TAILQ_INSERT_TAIL(&asoc->control_send_queue, chk, sctp_next);  in sctp_send_cwr()
11752 sctp_add_stream_reset_out(struct sctp_tcb *stcb, struct sctp_tmit_chunk *chk,  in sctp_add_stream_reset_out()  argument
11761 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_stream_reset_out()
11817 	chk->book_size = len + old_len;  in sctp_add_stream_reset_out()
11818 	chk->book_size_scale = 0;  in sctp_add_stream_reset_out()
11819 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_add_stream_reset_out()
11820 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_add_stream_reset_out()
11825 sctp_add_stream_reset_in(struct sctp_tmit_chunk *chk,  in sctp_add_stream_reset_in()  argument
11833 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_stream_reset_in()
11858 	chk->book_size = len + old_len;  in sctp_add_stream_reset_in()
11859 	chk->book_size_scale = 0;  in sctp_add_stream_reset_in()
11860 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_add_stream_reset_in()
11861 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_add_stream_reset_in()
11866 sctp_add_stream_reset_tsn(struct sctp_tmit_chunk *chk,  in sctp_add_stream_reset_tsn()  argument
11873 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_stream_reset_tsn()
11886 	chk->send_size = len + old_len;  in sctp_add_stream_reset_tsn()
11887 	chk->book_size = SCTP_SIZE32(chk->send_size);  in sctp_add_stream_reset_tsn()
11888 	chk->book_size_scale = 0;  in sctp_add_stream_reset_tsn()
11889 	SCTP_BUF_LEN(chk->data) = SCTP_SIZE32(chk->send_size);  in sctp_add_stream_reset_tsn()
11894 sctp_add_stream_reset_result(struct sctp_tmit_chunk *chk,  in sctp_add_stream_reset_result()  argument
11901 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_stream_reset_result()
11915 	chk->book_size = len + old_len;  in sctp_add_stream_reset_result()
11916 	chk->book_size_scale = 0;  in sctp_add_stream_reset_result()
11917 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_add_stream_reset_result()
11918 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_add_stream_reset_result()
11928 	struct sctp_tmit_chunk *chk;  in sctp_send_deferred_reset_response()  local
11942 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_deferred_reset_response()
11943 	if (chk == NULL) {  in sctp_send_deferred_reset_response()
11947 	chk->copy_by_ref = 0;  in sctp_send_deferred_reset_response()
11948 	chk->rec.chunk_id.id = SCTP_STREAM_RESET;  in sctp_send_deferred_reset_response()
11949 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_deferred_reset_response()
11950 	chk->flags = 0;  in sctp_send_deferred_reset_response()
11951 	chk->asoc = &stcb->asoc;  in sctp_send_deferred_reset_response()
11952 	chk->book_size = sizeof(struct sctp_chunkhdr);  in sctp_send_deferred_reset_response()
11953 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_send_deferred_reset_response()
11954 	chk->book_size_scale = 0;  in sctp_send_deferred_reset_response()
11955 	chk->data = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);  in sctp_send_deferred_reset_response()
11956 	if (chk->data == NULL) {  in sctp_send_deferred_reset_response()
11957 		sctp_free_a_chunk(stcb, chk, SCTP_SO_LOCKED);  in sctp_send_deferred_reset_response()
11961 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_deferred_reset_response()
11963 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_deferred_reset_response()
11964 	chk->snd_count = 0;  in sctp_send_deferred_reset_response()
11966 		chk->whoTo = stcb->asoc.alternate;  in sctp_send_deferred_reset_response()
11968 		chk->whoTo = stcb->asoc.primary_destination;  in sctp_send_deferred_reset_response()
11970 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_send_deferred_reset_response()
11973 	ch->chunk_length = htons(chk->book_size);  in sctp_send_deferred_reset_response()
11974 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_deferred_reset_response()
11975 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_deferred_reset_response()
11976 	sctp_add_stream_reset_result(chk, ent->seq, response);  in sctp_send_deferred_reset_response()
11979 	    chk,  in sctp_send_deferred_reset_response()
11985 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *chk,  in sctp_add_stream_reset_result_tsn()  argument
11993 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_stream_reset_result_tsn()
12009 	chk->book_size = len + old_len;  in sctp_add_stream_reset_result_tsn()
12010 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_add_stream_reset_result_tsn()
12011 	chk->book_size_scale = 0;  in sctp_add_stream_reset_result_tsn()
12012 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_add_stream_reset_result_tsn()
12017 sctp_add_an_out_stream(struct sctp_tmit_chunk *chk,  in sctp_add_an_out_stream()  argument
12025 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_an_out_stream()
12042 	chk->send_size = len + old_len;  in sctp_add_an_out_stream()
12043 	chk->book_size = SCTP_SIZE32(chk->send_size);  in sctp_add_an_out_stream()
12044 	chk->book_size_scale = 0;  in sctp_add_an_out_stream()
12045 	SCTP_BUF_LEN(chk->data) = SCTP_SIZE32(chk->send_size);  in sctp_add_an_out_stream()
12050 sctp_add_an_in_stream(struct sctp_tmit_chunk *chk,  in sctp_add_an_in_stream()  argument
12058 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_add_an_in_stream()
12074 	chk->send_size = len + old_len;  in sctp_add_an_in_stream()
12075 	chk->book_size = SCTP_SIZE32(chk->send_size);  in sctp_add_an_in_stream()
12076 	chk->book_size_scale = 0;  in sctp_add_an_in_stream()
12077 	SCTP_BUF_LEN(chk->data) = SCTP_SIZE32(chk->send_size);  in sctp_add_an_in_stream()
12085 	struct sctp_tmit_chunk *chk;  in sctp_send_stream_reset_out_if_possible()  local
12094 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_stream_reset_out_if_possible()
12095 	if (chk == NULL) {  in sctp_send_stream_reset_out_if_possible()
12099 	chk->copy_by_ref = 0;  in sctp_send_stream_reset_out_if_possible()
12100 	chk->rec.chunk_id.id = SCTP_STREAM_RESET;  in sctp_send_stream_reset_out_if_possible()
12101 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_stream_reset_out_if_possible()
12102 	chk->flags = 0;  in sctp_send_stream_reset_out_if_possible()
12103 	chk->asoc = &stcb->asoc;  in sctp_send_stream_reset_out_if_possible()
12104 	chk->book_size = sizeof(struct sctp_chunkhdr);  in sctp_send_stream_reset_out_if_possible()
12105 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_send_stream_reset_out_if_possible()
12106 	chk->book_size_scale = 0;  in sctp_send_stream_reset_out_if_possible()
12107 	chk->data = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);  in sctp_send_stream_reset_out_if_possible()
12108 	if (chk->data == NULL) {  in sctp_send_stream_reset_out_if_possible()
12109 		sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_send_stream_reset_out_if_possible()
12113 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_stream_reset_out_if_possible()
12116 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_stream_reset_out_if_possible()
12117 	chk->snd_count = 0;  in sctp_send_stream_reset_out_if_possible()
12119 		chk->whoTo = stcb->asoc.alternate;  in sctp_send_stream_reset_out_if_possible()
12121 		chk->whoTo = stcb->asoc.primary_destination;  in sctp_send_stream_reset_out_if_possible()
12123 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_send_stream_reset_out_if_possible()
12126 	ch->chunk_length = htons(chk->book_size);  in sctp_send_stream_reset_out_if_possible()
12127 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_stream_reset_out_if_possible()
12128 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_stream_reset_out_if_possible()
12130 …if (sctp_add_stream_reset_out(stcb, chk, seq, (stcb->asoc.str_reset_seq_in - 1), (stcb->asoc.sendi…  in sctp_send_stream_reset_out_if_possible()
12134 		m_freem(chk->data);  in sctp_send_stream_reset_out_if_possible()
12135 		chk->data = NULL;  in sctp_send_stream_reset_out_if_possible()
12136 		sctp_free_a_chunk(stcb, chk, so_locked);  in sctp_send_stream_reset_out_if_possible()
12139 	asoc->str_reset = chk;  in sctp_send_stream_reset_out_if_possible()
12142 	    chk,  in sctp_send_stream_reset_out_if_possible()
12149 	sctp_timer_start(SCTP_TIMER_TYPE_STRRESET, stcb->sctp_ep, stcb, chk->whoTo);  in sctp_send_stream_reset_out_if_possible()
12163 	struct sctp_tmit_chunk *chk;  in sctp_send_str_reset_req()  local
12199 	sctp_alloc_a_chunk(stcb, chk);  in sctp_send_str_reset_req()
12200 	if (chk == NULL) {  in sctp_send_str_reset_req()
12204 	chk->copy_by_ref = 0;  in sctp_send_str_reset_req()
12205 	chk->rec.chunk_id.id = SCTP_STREAM_RESET;  in sctp_send_str_reset_req()
12206 	chk->rec.chunk_id.can_take_data = 0;  in sctp_send_str_reset_req()
12207 	chk->flags = 0;  in sctp_send_str_reset_req()
12208 	chk->asoc = &stcb->asoc;  in sctp_send_str_reset_req()
12209 	chk->book_size = sizeof(struct sctp_chunkhdr);  in sctp_send_str_reset_req()
12210 	chk->send_size = SCTP_SIZE32(chk->book_size);  in sctp_send_str_reset_req()
12211 	chk->book_size_scale = 0;  in sctp_send_str_reset_req()
12212 	chk->data = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA);  in sctp_send_str_reset_req()
12213 	if (chk->data == NULL) {  in sctp_send_str_reset_req()
12214 		sctp_free_a_chunk(stcb, chk, SCTP_SO_LOCKED);  in sctp_send_str_reset_req()
12218 	SCTP_BUF_RESV_UF(chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_str_reset_req()
12221 	chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_str_reset_req()
12222 	chk->snd_count = 0;  in sctp_send_str_reset_req()
12224 		chk->whoTo = stcb->asoc.alternate;  in sctp_send_str_reset_req()
12226 		chk->whoTo = stcb->asoc.primary_destination;  in sctp_send_str_reset_req()
12228 	atomic_add_int(&chk->whoTo->ref_count, 1);  in sctp_send_str_reset_req()
12229 	ch = mtod(chk->data, struct sctp_chunkhdr *);  in sctp_send_str_reset_req()
12232 	ch->chunk_length = htons(chk->book_size);  in sctp_send_str_reset_req()
12233 	SCTP_BUF_LEN(chk->data) = chk->send_size;  in sctp_send_str_reset_req()
12239 …ret = sctp_add_stream_reset_out(stcb, chk, seq, (stcb->asoc.str_reset_seq_in - 1), (stcb->asoc.sen…  in sctp_send_str_reset_req()
12331 		sctp_add_an_out_stream(chk, seq, adding_o);  in sctp_send_str_reset_req()
12336 		sctp_add_an_in_stream(chk, seq, adding_i);  in sctp_send_str_reset_req()
12341 		sctp_add_stream_reset_in(chk, number_entries, list, seq);  in sctp_send_str_reset_req()
12346 		sctp_add_stream_reset_tsn(chk, seq);  in sctp_send_str_reset_req()
12349 	asoc->str_reset = chk;  in sctp_send_str_reset_req()
12352 	    chk,  in sctp_send_str_reset_req()
12358 	sctp_timer_start(SCTP_TIMER_TYPE_STRRESET, stcb->sctp_ep, stcb, chk->whoTo);  in sctp_send_str_reset_req()