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numam-dpdk/examples/ipsec-secgw/rt.c
Sergio Gonzalez Monroy f159e70b09 examples/ipsec-secgw: support transport mode 
IPSec transport mode support.

Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-06-21 12:12:09 +02:00

273 lines
9.0 KiB
C
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/*-
* 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_lpm6.h>
#include <rte_errno.h>
#include <rte_ip.h>
#include "ipsec.h"
#define RT_IPV4_MAX_RULES 1024
#define RT_IPV6_MAX_RULES 1024
struct ip4_route {
uint32_t ip;
uint8_t depth;
uint8_t if_out;
};
struct ip6_route {
uint8_t ip[16];
uint8_t depth;
uint8_t if_out;
};
static struct ip4_route rt_ip4_ep0[] = {
/* Outbound */
/* Tunnels */
{ IPv4(172, 16, 2, 5), 32, 0 },
{ IPv4(172, 16, 2, 6), 32, 1 },
/* Transport */
{ IPv4(192, 168, 175, 0), 24, 0 },
{ IPv4(192, 168, 176, 0), 24, 1 },
/* Bypass */
{ IPv4(192, 168, 240, 0), 24, 0 },
{ IPv4(192, 168, 241, 0), 24, 1 },
/* Inbound */
/* Tunnels */
{ IPv4(192, 168, 115, 0), 24, 2 },
{ IPv4(192, 168, 116, 0), 24, 3 },
{ IPv4(192, 168, 65, 0), 24, 2 },
{ IPv4(192, 168, 66, 0), 24, 3 },
/* Transport */
{ IPv4(192, 168, 185, 0), 24, 2 },
{ IPv4(192, 168, 186, 0), 24, 3 },
/* NULL */
{ IPv4(192, 168, 210, 0), 24, 2 },
{ IPv4(192, 168, 211, 0), 24, 3 },
/* Bypass */
{ IPv4(192, 168, 245, 0), 24, 2 },
{ IPv4(192, 168, 246, 0), 24, 3 },
};
static struct ip6_route rt_ip6_ep0[] = {
/* Outbound */
/* Tunnels */
{ { 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
0x22, 0x22, 0x22, 0x22, 0x22, 0x55, 0x55 }, 116, 0 },
{ { 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22,
0x22, 0x22, 0x22, 0x22, 0x22, 0x66, 0x66 }, 116, 1 },
/* Transport */
{ { 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 116, 0 },
{ { 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00 }, 116, 1 },
/* Inbound */
/* Tunnels */
{ { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa,
0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbb,
0xbb, 0xbb, 0xbb, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
{ { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55,
0x55, 0x55, 0x55, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66,
0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
/* Transport */
{ { 0xff, 0xff, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0xff, 0xff, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
};
static struct ip4_route rt_ip4_ep1[] = {
/* Outbound */
/* Tunnels */
{ IPv4(172, 16, 1, 5), 32, 0 },
{ IPv4(172, 16, 1, 6), 32, 1 },
/* Transport */
{ IPv4(192, 168, 185, 0), 24, 0 },
{ IPv4(192, 168, 186, 0), 24, 1 },
/* Bypass */
{ IPv4(192, 168, 245, 0), 24, 0 },
{ IPv4(192, 168, 246, 0), 24, 1 },
/* Inbound */
/* Tunnels */
{ IPv4(192, 168, 105, 0), 24, 2 },
{ IPv4(192, 168, 106, 0), 24, 3 },
{ IPv4(192, 168, 55, 0), 24, 2 },
{ IPv4(192, 168, 56, 0), 24, 3 },
/* Transport */
{ IPv4(192, 168, 175, 0), 24, 2 },
{ IPv4(192, 168, 176, 0), 24, 3 },
/* NULL */
{ IPv4(192, 168, 200, 0), 24, 2 },
{ IPv4(192, 168, 201, 0), 24, 3 },
/* Bypass */
{ IPv4(192, 168, 240, 0), 24, 2 },
{ IPv4(192, 168, 241, 0), 24, 3 },
};
static struct ip6_route rt_ip6_ep1[] = {
/* Outbound */
/* Tunnels */
{ { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x11, 0x11, 0x55, 0x55 }, 116, 0 },
{ { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x11, 0x11, 0x66, 0x66 }, 116, 1 },
/* Transport */
{ { 0xff, 0xff, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 116, 0 },
{ { 0xff, 0xff, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00 }, 116, 1 },
/* Inbound */
/* Tunnels */
{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa,
0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbb,
0xbb, 0xbb, 0xbb, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55,
0x55, 0x55, 0x55, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66,
0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
/* Transport */
{ { 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, 116, 2 },
{ { 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x11, 0x11, 0x11,
0x11, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00 }, 116, 3 },
};
void
rt_init(struct socket_ctx *ctx, int32_t socket_id, uint32_t ep)
{
char name[PATH_MAX];
uint32_t i;
int32_t ret;
struct rte_lpm *lpm;
struct rte_lpm6 *lpm6;
struct ip4_route *rt;
struct ip6_route *rt6;
char a, b, c, d;
uint32_t nb_routes, nb_routes6;
struct rte_lpm_config conf = { 0 };
struct rte_lpm6_config conf6 = { 0 };
if (ctx == NULL)
rte_exit(EXIT_FAILURE, "NULL context.\n");
if (ctx->rt_ip4 != NULL)
rte_exit(EXIT_FAILURE, "IPv4 Routing Table for socket %u "
"already initialized\n", socket_id);
if (ctx->rt_ip6 != NULL)
rte_exit(EXIT_FAILURE, "IPv6 Routing Table for socket %u "
"already initialized\n", socket_id);
printf("Creating IPv4 Routing Table (RT) context with %u max routes\n",
RT_IPV4_MAX_RULES);
if (ep == 0) {
rt = rt_ip4_ep0;
nb_routes = RTE_DIM(rt_ip4_ep0);
rt6 = rt_ip6_ep0;
nb_routes6 = RTE_DIM(rt_ip6_ep0);
} else if (ep == 1) {
rt = rt_ip4_ep1;
nb_routes = RTE_DIM(rt_ip4_ep1);
rt6 = rt_ip6_ep1;
nb_routes6 = RTE_DIM(rt_ip6_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_ip4", 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 %s LPM table "
"on socket %d\n", name, 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, "Fail to add entry num %u to %s "
"LPM table on socket %d\n", i, name, 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);
}
snprintf(name, sizeof(name), "%s_%u", "rt_ip6", socket_id);
conf6.max_rules = RT_IPV6_MAX_RULES;
conf6.number_tbl8s = RTE_LPM_TBL8_NUM_ENTRIES;
lpm6 = rte_lpm6_create(name, socket_id, &conf6);
if (lpm6 == NULL)
rte_exit(EXIT_FAILURE, "Unable to create %s LPM table "
"on socket %d\n", name, socket_id);
/* populate the LPM table */
for (i = 0; i < nb_routes6; i++) {
ret = rte_lpm6_add(lpm6, rt6[i].ip, rt6[i].depth,
rt6[i].if_out);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Fail to add entry num %u to %s "
"LPM table on socket %d\n", i, name, socket_id);
printf("LPM6: Adding route "
" %hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%hhx (%hhx)\n",
(uint16_t)((rt6[i].ip[0] << 8) | rt6[i].ip[1]),
(uint16_t)((rt6[i].ip[2] << 8) | rt6[i].ip[3]),
(uint16_t)((rt6[i].ip[4] << 8) | rt6[i].ip[5]),
(uint16_t)((rt6[i].ip[6] << 8) | rt6[i].ip[7]),
(uint16_t)((rt6[i].ip[8] << 8) | rt6[i].ip[9]),
(uint16_t)((rt6[i].ip[10] << 8) | rt6[i].ip[11]),
(uint16_t)((rt6[i].ip[12] << 8) | rt6[i].ip[13]),
(uint16_t)((rt6[i].ip[14] << 8) | rt6[i].ip[15]),
rt6[i].depth, rt6[i].if_out);
}
ctx->rt_ip4 = (struct rt_ctx *)lpm;
ctx->rt_ip6 = (struct rt_ctx *)lpm6;
}
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