Function pdcp_entity_priv_populate

dpdk/lib/pdcp/pdcp_process.c:1105–1216

}

static int
pdcp_entity_priv_populate(struct entity_priv *en_priv, const struct rte_pdcp_entity_conf *conf)
{
	struct rte_crypto_sym_xform *c_xfrm, *a_xfrm;
	int ret;

	ret = pdcp_crypto_xfrm_get(conf, &c_xfrm, &a_xfrm);
	if (ret)
		return ret;

	/**
	 * flags.is_authenticated
	 *
	 * MAC-I would be added in case of control plane packets and when authentication
	 * transform is not NULL.
	 */

	if ((conf->pdcp_xfrm.domain == RTE_SECURITY_PDCP_MODE_CONTROL) && (a_xfrm == NULL))
		return -EINVAL;

	if (a_xfrm != NULL)
		en_priv->flags.is_authenticated = 1;

	/**
	 * flags.is_cipher_in_bits
	 *
	 * For ZUC & SNOW3G cipher algos, offset & length need to be provided in bits.
	 */

	if ((c_xfrm->cipher.algo == RTE_CRYPTO_CIPHER_SNOW3G_UEA2) ||
	    (c_xfrm->cipher.algo == RTE_CRYPTO_CIPHER_ZUC_EEA3))
		en_priv->flags.is_cipher_in_bits = 1;

	/**
	 * flags.is_auth_in_bits
	 *
	 * For ZUC & SNOW3G authentication algos, offset & length need to be provided in bits.
	 */

	if (a_xfrm != NULL) {
		if ((a_xfrm->auth.algo == RTE_CRYPTO_AUTH_SNOW3G_UIA2) ||
		    (a_xfrm->auth.algo == RTE_CRYPTO_AUTH_ZUC_EIA3))
			en_priv->flags.is_auth_in_bits = 1;
	}

	/**
	 * flags.is_ul_entity
	 *
	 * Indicate whether the entity is UL/transmitting PDCP entity.
	 */
	if (conf->pdcp_xfrm.pkt_dir == RTE_SECURITY_PDCP_UPLINK)
		en_priv->flags.is_ul_entity = 1;

	/**
	 * flags.is_null_auth
	 *
	 * For NULL auth, 4B zeros need to be added by lib PDCP. Indicate that
	 * algo is NULL auth to perform the same.