Function sctp_build_readq_entry

freebsd/netinet/sctp_indata.c:134–169

* Build out our readq entry based on the incoming packet. */

 * Build out our readq entry based on the incoming packet.
 */
struct sctp_queued_to_read *
sctp_build_readq_entry(struct sctp_tcb *stcb,
    struct sctp_nets *net,
    uint32_t tsn, uint32_t ppid,
    uint32_t context, uint16_t sid,
    uint32_t mid, uint8_t flags,
    struct mbuf *dm)
{
	struct sctp_queued_to_read *read_queue_e = NULL;

	sctp_alloc_a_readq(stcb, read_queue_e);
	if (read_queue_e == NULL) {
		goto failed_build;
	}
	memset(read_queue_e, 0, sizeof(struct sctp_queued_to_read));
	read_queue_e->sinfo_stream = sid;
	read_queue_e->sinfo_flags = (flags << 8);
	read_queue_e->sinfo_ppid = ppid;
	read_queue_e->sinfo_context = context;
	read_queue_e->sinfo_tsn = tsn;
	read_queue_e->sinfo_cumtsn = tsn;
	read_queue_e->sinfo_assoc_id = sctp_get_associd(stcb);
	read_queue_e->mid = mid;
	read_queue_e->top_fsn = read_queue_e->fsn_included = 0xffffffff;
	TAILQ_INIT(&read_queue_e->reasm);
	read_queue_e->whoFrom = net;
	atomic_add_int(&net->ref_count, 1);
	read_queue_e->data = dm;
	read_queue_e->stcb = stcb;
	read_queue_e->port_from = stcb->rport;
	if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
		read_queue_e->do_not_ref_stcb = 1;
	}
failed_build:
	return (read_queue_e);
}

struct mbuf *
sctp_build_ctl_nchunk(struct sctp_inpcb *inp, struct sctp_sndrcvinfo *sinfo)