[PATCH v3 04/12] net: add ESP header to generic flow steering

[Akhil Goyal <akhil.goyal@nxp.com>]

From: Boris Pismenny <borisp@mellanox.com>

The ESP header is required for IPsec crypto actions.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
---
 doc/api/doxy-api-index.md   |  1 +
 lib/librte_ether/rte_flow.h | 26 ++++++++++++++++++++
 lib/librte_net/Makefile     |  2 +-
 lib/librte_net/rte_esp.h    | 60 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 88 insertions(+), 1 deletion(-)
 create mode 100644 lib/librte_net/rte_esp.h

diff --git a/doc/api/doxy-api-index.md b/doc/api/doxy-api-index.md
index a3d39fc..23bafbc 100644
--- a/doc/api/doxy-api-index.md
+++ b/doc/api/doxy-api-index.md
@@ -107,6 +107,7 @@ The public API headers are grouped by topics:
   [LPM IPv6 route]     (@ref rte_lpm6.h),
   [ACL]                (@ref rte_acl.h),
   [EFD]                (@ref rte_efd.h)
+  [ESP]                (@ref rte_esp.h)
 
 - **QoS**:
   [metering]           (@ref rte_meter.h),
diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index bba6169..ea08af6 100644
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -50,6 +50,7 @@
 #include <rte_tcp.h>
 #include <rte_udp.h>
 #include <rte_byteorder.h>
+#include <rte_esp.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -309,6 +310,13 @@ enum rte_flow_item_type {
 	 * See struct rte_flow_item_fuzzy.
 	 */
 	RTE_FLOW_ITEM_TYPE_FUZZY,
+
+	/**
+	 * Matches a ESP header.
+	 *
+	 * See struct rte_flow_item_esp.
+	 */
+	RTE_FLOW_ITEM_TYPE_ESP,
 };
 
 /**
@@ -735,6 +743,24 @@ static const struct rte_flow_item_fuzzy rte_flow_item_fuzzy_mask = {
 #endif
 
 /**
+ * RTE_FLOW_ITEM_TYPE_ESP
+ *
+ * Matches an ESP header.
+ */
+struct rte_flow_item_esp {
+	struct esp_hdr hdr; /**< ESP header definition. */
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_ESP. */
+#ifndef __cplusplus
+static const struct rte_flow_item_esp rte_flow_item_esp_mask = {
+	.hdr = {
+		.spi = 0xffffffff,
+	},
+};
+#endif
+
+/**
  * Matching pattern item definition.
  *
  * A pattern is formed by stacking items starting from the lowest protocol
diff --git a/lib/librte_net/Makefile b/lib/librte_net/Makefile
index 56727c4..0f87b23 100644
--- a/lib/librte_net/Makefile
+++ b/lib/librte_net/Makefile
@@ -42,7 +42,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_NET) := rte_net.c
 SRCS-$(CONFIG_RTE_LIBRTE_NET) += rte_net_crc.c
 
 # install includes
-SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include := rte_ip.h rte_tcp.h rte_udp.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include := rte_ip.h rte_tcp.h rte_udp.h rte_esp.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_sctp.h rte_icmp.h rte_arp.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_ether.h rte_gre.h rte_net.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_net_crc.h
diff --git a/lib/librte_net/rte_esp.h b/lib/librte_net/rte_esp.h
new file mode 100644
index 0000000..e228af0
--- /dev/null
+++ b/lib/librte_net/rte_esp.h
@@ -0,0 +1,60 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_ESP_H_
+#define _RTE_ESP_H_
+
+/**
+ * @file
+ *
+ * ESP-related defines
+ */
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * ESP Header
+ */
+struct esp_hdr {
+	uint32_t spi;  /**< Security Parameters Index */
+	uint32_t seq;  /**< packet sequence number */
+} __attribute__((__packed__));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_ESP_H_ */
-- 
2.9.3