Function key_setsadbxsa2

freebsd/netipsec/key.c:3859–3884

* set data into sadb_x_sa2. */

 * set data into sadb_x_sa2.
 */
static struct mbuf *
key_setsadbxsa2(u_int8_t mode, u_int32_t seq, u_int32_t reqid)
{
	struct mbuf *m;
	struct sadb_x_sa2 *p;
	size_t len;

	len = PFKEY_ALIGN8(sizeof(struct sadb_x_sa2));
	m = m_get2(len, M_NOWAIT, MT_DATA, 0);
	if (m == NULL)
		return (NULL);
	m_align(m, len);
	m->m_len = len;
	p = mtod(m, struct sadb_x_sa2 *);

	bzero(p, len);
	p->sadb_x_sa2_len = PFKEY_UNIT64(len);
	p->sadb_x_sa2_exttype = SADB_X_EXT_SA2;
	p->sadb_x_sa2_mode = mode;
	p->sadb_x_sa2_reserved1 = 0;
	p->sadb_x_sa2_reserved2 = 0;
	p->sadb_x_sa2_sequence = seq;
	p->sadb_x_sa2_reqid = reqid;

	return m;
}

/*
 * Set data into sadb_x_sa_replay.