Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 145 insertions, 0 deletions

diff --git a/examples/ipsec-secgw/rt.c b/examples/ipsec-secgw/rt.c
new file mode 100644
index 00000000..a6d0866a
--- /dev/null
+++ b/examples/ipsec-secgw/rt.c
@@ -0,0 +1,145 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2016 Intel Corporation. All rights reserved.
+ *   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.
+ */
+
+/*
+ * Routing Table (RT)
+ */
+#include <sys/types.h>
+#include <rte_lpm.h>
+#include <rte_errno.h>
+
+#include "ipsec.h"
+
+#define RT_IPV4_MAX_RULES         64
+
+struct ipv4_route {
+	uint32_t ip;
+	uint8_t  depth;
+	uint8_t  if_out;
+};
+
+/* In the default routing table we have:
+ * ep0 protected ports 0 and 1, and unprotected ports 2 and 3.
+ */
+static struct ipv4_route rt_ipv4_ep0[] = {
+	{ IPv4(172, 16, 2, 5), 32, 0 },
+	{ IPv4(172, 16, 2, 6), 32, 0 },
+	{ IPv4(172, 16, 2, 7), 32, 1 },
+	{ IPv4(172, 16, 2, 8), 32, 1 },
+
+	{ IPv4(192, 168, 115, 0), 24, 2 },
+	{ IPv4(192, 168, 116, 0), 24, 2 },
+	{ IPv4(192, 168, 117, 0), 24, 3 },
+	{ IPv4(192, 168, 118, 0), 24, 3 },
+
+	{ IPv4(192, 168, 210, 0), 24, 2 },
+
+	{ IPv4(192, 168, 240, 0), 24, 2 },
+	{ IPv4(192, 168, 250, 0), 24, 0 }
+};
+
+/* In the default routing table we have:
+ * ep1 protected ports 0 and 1, and unprotected ports 2 and 3.
+ */
+static struct ipv4_route rt_ipv4_ep1[] = {
+	{ IPv4(172, 16, 1, 5), 32, 2 },
+	{ IPv4(172, 16, 1, 6), 32, 2 },
+	{ IPv4(172, 16, 1, 7), 32, 3 },
+	{ IPv4(172, 16, 1, 8), 32, 3 },
+
+	{ IPv4(192, 168, 105, 0), 24, 0 },
+	{ IPv4(192, 168, 106, 0), 24, 0 },
+	{ IPv4(192, 168, 107, 0), 24, 1 },
+	{ IPv4(192, 168, 108, 0), 24, 1 },
+
+	{ IPv4(192, 168, 200, 0), 24, 0 },
+
+	{ IPv4(192, 168, 240, 0), 24, 2 },
+	{ IPv4(192, 168, 250, 0), 24, 0 }
+};
+
+void
+rt_init(struct socket_ctx *ctx, int socket_id, unsigned ep)
+{
+	char name[PATH_MAX];
+	unsigned i;
+	int ret;
+	struct rte_lpm *lpm;
+	struct ipv4_route *rt;
+	char a, b, c, d;
+	unsigned nb_routes;
+	struct rte_lpm_config conf = { 0 };
+
+	if (ctx == NULL)
+		rte_exit(EXIT_FAILURE, "NULL context.\n");
+
+	if (ctx->rt_ipv4 != NULL)
+		rte_exit(EXIT_FAILURE, "Routing Table for socket %u already "
+			"initialized\n", socket_id);
+
+	printf("Creating Routing Table (RT) context with %u max routes\n",
+			RT_IPV4_MAX_RULES);
+
+	if (ep == 0) {
+		rt = rt_ipv4_ep0;
+		nb_routes = RTE_DIM(rt_ipv4_ep0);
+	} else if (ep == 1) {
+		rt = rt_ipv4_ep1;
+		nb_routes = RTE_DIM(rt_ipv4_ep1);
+	} else
+		rte_exit(EXIT_FAILURE, "Invalid EP value %u. Only 0 or 1 "
+			"supported.\n", ep);
+
+	/* create the LPM table */
+	snprintf(name, sizeof(name), "%s_%u", "rt_ipv4", socket_id);
+	conf.max_rules = RT_IPV4_MAX_RULES;
+	conf.number_tbl8s = RTE_LPM_TBL8_NUM_ENTRIES;
+	lpm = rte_lpm_create(name, socket_id, &conf);
+	if (lpm == NULL)
+		rte_exit(EXIT_FAILURE, "Unable to create LPM table "
+			"on socket %d\n", socket_id);
+
+	/* populate the LPM table */
+	for (i = 0; i < nb_routes; i++) {
+		ret = rte_lpm_add(lpm, rt[i].ip, rt[i].depth, rt[i].if_out);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE, "Unable to add entry num %u to "
+				"LPM table on socket %d\n", i, socket_id);
+
+		uint32_t_to_char(rt[i].ip, &a, &b, &c, &d);
+		printf("LPM: Adding route %hhu.%hhu.%hhu.%hhu/%hhu (%hhu)\n",
+				a, b, c, d, rt[i].depth, rt[i].if_out);
+	}
+
+	ctx->rt_ipv4 = (struct rt_ctx *)lpm;
+}