10551 	struct sctp_tmit_chunk *chk, *a_chk;  in sctp_send_sack()  local
10575 	a_chk = NULL;  in sctp_send_sack()
10589 			a_chk = chk;  in sctp_send_sack()
10590 			if (a_chk->data) {  in sctp_send_sack()
10591 				sctp_m_freem(a_chk->data);  in sctp_send_sack()
10592 				a_chk->data = NULL;  in sctp_send_sack()
10594 			if (a_chk->whoTo) {  in sctp_send_sack()
10595 				sctp_free_remote_addr(a_chk->whoTo);  in sctp_send_sack()
10596 				a_chk->whoTo = NULL;  in sctp_send_sack()
10601 	if (a_chk == NULL) {  in sctp_send_sack()
10602 		sctp_alloc_a_chunk(stcb, a_chk);  in sctp_send_sack()
10603 		if (a_chk == NULL) {  in sctp_send_sack()
10616 		a_chk->copy_by_ref = 0;  in sctp_send_sack()
10617 		a_chk->rec.chunk_id.id = type;  in sctp_send_sack()
10618 		a_chk->rec.chunk_id.can_take_data = 1;  in sctp_send_sack()
10623 	a_chk->flags = 0;  in sctp_send_sack()
10624 	a_chk->asoc = asoc;  in sctp_send_sack()
10625 	a_chk->snd_count = 0;  in sctp_send_sack()
10626 	a_chk->send_size = 0;	/* fill in later */  in sctp_send_sack()
10627 	a_chk->sent = SCTP_DATAGRAM_UNSENT;  in sctp_send_sack()
10628 	a_chk->whoTo = NULL;  in sctp_send_sack()
10635 		a_chk->whoTo = sctp_find_alternate_net(stcb, asoc->last_data_chunk_from, 0);  in sctp_send_sack()
10636 		if (a_chk->whoTo == NULL) {  in sctp_send_sack()
10638 			a_chk->whoTo = asoc->last_data_chunk_from;  in sctp_send_sack()
10641 		a_chk->whoTo = asoc->last_data_chunk_from;  in sctp_send_sack()
10643 	if (a_chk->whoTo) {  in sctp_send_sack()
10644 		atomic_add_int(&a_chk->whoTo->ref_count, 1);  in sctp_send_sack()
10663 	a_chk->data = sctp_get_mbuf_for_msg(space_req, 0, M_NOWAIT, 1, MT_DATA);  in sctp_send_sack()
10664 	if ((a_chk->data == NULL) ||  in sctp_send_sack()
10665 	    (a_chk->whoTo == NULL)) {  in sctp_send_sack()
10667 		if (a_chk->data) {  in sctp_send_sack()
10669 			sctp_m_freem(a_chk->data);  in sctp_send_sack()
10670 			a_chk->data = NULL;  in sctp_send_sack()
10672 		sctp_free_a_chunk(stcb, a_chk, so_locked);  in sctp_send_sack()
10686 	SCTP_BUF_RESV_UF(a_chk->data, SCTP_MIN_OVERHEAD);  in sctp_send_sack()
10687 	space = (unsigned int)M_TRAILINGSPACE(a_chk->data);  in sctp_send_sack()
10688 	if (space > (a_chk->whoTo->mtu - SCTP_MIN_OVERHEAD)) {  in sctp_send_sack()
10689 		space = (a_chk->whoTo->mtu - SCTP_MIN_OVERHEAD);  in sctp_send_sack()
10691 	limit = mtod(a_chk->data, caddr_t);  in sctp_send_sack()
10717 		sack = mtod(a_chk->data, struct sctp_sack_chunk *);  in sctp_send_sack()
10727 		nr_sack = mtod(a_chk->data, struct sctp_nr_sack_chunk *);  in sctp_send_sack()
10900 		a_chk->send_size = (uint16_t)(sizeof(struct sctp_sack_chunk) +  in sctp_send_sack()
10903 		SCTP_BUF_LEN(a_chk->data) = a_chk->send_size;  in sctp_send_sack()
10910 		sack->ch.chunk_length = htons(a_chk->send_size);  in sctp_send_sack()
10912 		a_chk->send_size = (uint16_t)(sizeof(struct sctp_nr_sack_chunk) +  in sctp_send_sack()
10915 		SCTP_BUF_LEN(a_chk->data) = a_chk->send_size;  in sctp_send_sack()
10924 		nr_sack->ch.chunk_length = htons(a_chk->send_size);  in sctp_send_sack()
10926 	TAILQ_INSERT_TAIL(&asoc->control_send_queue, a_chk, sctp_next);  in sctp_send_sack()