[dpdk-dev] [PATCH v2 37/37] net/txgbe: add security type in flow action

[Jiawen Wu <jiawenwu@trustnetic.com>]

Add security type in flow action.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
 drivers/net/txgbe/txgbe_flow.c  | 52 +++++++++++++++++++++++++++++++++
 drivers/net/txgbe/txgbe_ipsec.c | 30 +++++++++++++++++++
 drivers/net/txgbe/txgbe_ipsec.h |  3 ++
 3 files changed, 85 insertions(+)

diff --git a/drivers/net/txgbe/txgbe_flow.c b/drivers/net/txgbe/txgbe_flow.c
index b5f4073e2..5ca89d619 100644
--- a/drivers/net/txgbe/txgbe_flow.c
+++ b/drivers/net/txgbe/txgbe_flow.c
@@ -145,6 +145,9 @@ const struct rte_flow_action *next_no_void_action(
  * END
  * other members in mask and spec should set to 0x00.
  * item->last should be NULL.
+ *
+ * Special case for flow action type RTE_FLOW_ACTION_TYPE_SECURITY.
+ *
  */
 static int
 cons_parse_ntuple_filter(const struct rte_flow_attr *attr,
@@ -193,6 +196,43 @@ cons_parse_ntuple_filter(const struct rte_flow_attr *attr,
 	memset(&eth_null, 0, sizeof(struct rte_flow_item_eth));
 	memset(&vlan_null, 0, sizeof(struct rte_flow_item_vlan));
 
+#ifdef RTE_LIB_SECURITY
+	/**
+	 *  Special case for flow action type RTE_FLOW_ACTION_TYPE_SECURITY
+	 */
+	act = next_no_void_action(actions, NULL);
+	if (act->type == RTE_FLOW_ACTION_TYPE_SECURITY) {
+		const void *conf = act->conf;
+		/* check if the next not void item is END */
+		act = next_no_void_action(actions, act);
+		if (act->type != RTE_FLOW_ACTION_TYPE_END) {
+			memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+			rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_ACTION,
+				act, "Not supported action.");
+			return -rte_errno;
+		}
+
+		/* get the IP pattern*/
+		item = next_no_void_pattern(pattern, NULL);
+		while (item->type != RTE_FLOW_ITEM_TYPE_IPV4 &&
+				item->type != RTE_FLOW_ITEM_TYPE_IPV6) {
+			if (item->last ||
+					item->type == RTE_FLOW_ITEM_TYPE_END) {
+				rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_ITEM,
+					item, "IP pattern missing.");
+				return -rte_errno;
+			}
+			item = next_no_void_pattern(pattern, item);
+		}
+
+		filter->proto = IPPROTO_ESP;
+		return txgbe_crypto_add_ingress_sa_from_flow(conf, item->spec,
+					item->type == RTE_FLOW_ITEM_TYPE_IPV6);
+	}
+#endif
+
 	/* the first not void item can be MAC or IPv4 */
 	item = next_no_void_pattern(pattern, NULL);
 
@@ -563,6 +603,12 @@ txgbe_parse_ntuple_filter(struct rte_eth_dev *dev,
 	if (ret)
 		return ret;
 
+#ifdef RTE_LIB_SECURITY
+	/* ESP flow not really a flow */
+	if (filter->proto == IPPROTO_ESP)
+		return 0;
+#endif
+
 	/* txgbe doesn't support tcp flags */
 	if (filter->flags & RTE_NTUPLE_FLAGS_TCP_FLAG) {
 		memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
@@ -2690,6 +2736,12 @@ txgbe_flow_create(struct rte_eth_dev *dev,
 	ret = txgbe_parse_ntuple_filter(dev, attr, pattern,
 			actions, &ntuple_filter, error);
 
+#ifdef RTE_LIB_SECURITY
+	/* ESP flow not really a flow*/
+	if (ntuple_filter.proto == IPPROTO_ESP)
+		return flow;
+#endif
+
 	if (!ret) {
 		ret = txgbe_add_del_ntuple_filter(dev, &ntuple_filter, TRUE);
 		if (!ret) {
diff --git a/drivers/net/txgbe/txgbe_ipsec.c b/drivers/net/txgbe/txgbe_ipsec.c
index f8c54f3d4..d0543ce0b 100644
--- a/drivers/net/txgbe/txgbe_ipsec.c
+++ b/drivers/net/txgbe/txgbe_ipsec.c
@@ -658,6 +658,36 @@ txgbe_crypto_enable_ipsec(struct rte_eth_dev *dev)
 	return 0;
 }
 
+int
+txgbe_crypto_add_ingress_sa_from_flow(const void *sess,
+				      const void *ip_spec,
+				      uint8_t is_ipv6)
+{
+	struct txgbe_crypto_session *ic_session =
+			get_sec_session_private_data(sess);
+
+	if (ic_session->op == TXGBE_OP_AUTHENTICATED_DECRYPTION) {
+		if (is_ipv6) {
+			const struct rte_flow_item_ipv6 *ipv6 = ip_spec;
+			ic_session->src_ip.type = IPv6;
+			ic_session->dst_ip.type = IPv6;
+			rte_memcpy(ic_session->src_ip.ipv6,
+				   ipv6->hdr.src_addr, 16);
+			rte_memcpy(ic_session->dst_ip.ipv6,
+				   ipv6->hdr.dst_addr, 16);
+		} else {
+			const struct rte_flow_item_ipv4 *ipv4 = ip_spec;
+			ic_session->src_ip.type = IPv4;
+			ic_session->dst_ip.type = IPv4;
+			ic_session->src_ip.ipv4 = ipv4->hdr.src_addr;
+			ic_session->dst_ip.ipv4 = ipv4->hdr.dst_addr;
+		}
+		return txgbe_crypto_add_sa(ic_session);
+	}
+
+	return 0;
+}
+
 static struct rte_security_ops txgbe_security_ops = {
 	.session_create = txgbe_crypto_create_session,
 	.session_get_size = txgbe_crypto_session_get_size,
diff --git a/drivers/net/txgbe/txgbe_ipsec.h b/drivers/net/txgbe/txgbe_ipsec.h
index 54c27d8ce..1e5678437 100644
--- a/drivers/net/txgbe/txgbe_ipsec.h
+++ b/drivers/net/txgbe/txgbe_ipsec.h
@@ -91,5 +91,8 @@ struct txgbe_ipsec {
 
 int txgbe_ipsec_ctx_create(struct rte_eth_dev *dev);
 int txgbe_crypto_enable_ipsec(struct rte_eth_dev *dev);
+int txgbe_crypto_add_ingress_sa_from_flow(const void *sess,
+					  const void *ip_spec,
+					  uint8_t is_ipv6);
 
 #endif /*TXGBE_IPSEC_H_*/
-- 
2.18.4