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-rw-r--r--src/seastar/dpdk/examples/ipsec-secgw/rt.c235
1 files changed, 235 insertions, 0 deletions
diff --git a/src/seastar/dpdk/examples/ipsec-secgw/rt.c b/src/seastar/dpdk/examples/ipsec-secgw/rt.c
new file mode 100644
index 00000000..e03c5f0b
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+++ b/src/seastar/dpdk/examples/ipsec-secgw/rt.c
@@ -0,0 +1,235 @@
+/*-
+ * 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"
+#include "parser.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;
+};
+
+struct ip4_route rt_ip4[RT_IPV4_MAX_RULES];
+uint32_t nb_rt_ip4;
+
+struct ip6_route rt_ip6[RT_IPV4_MAX_RULES];
+uint32_t nb_rt_ip6;
+
+void
+parse_rt_tokens(char **tokens, uint32_t n_tokens,
+ struct parse_status *status)
+{
+ uint32_t ti;
+ uint32_t *n_rts = NULL;
+ struct ip4_route *route_ipv4 = NULL;
+ struct ip6_route *route_ipv6 = NULL;
+
+ if (strcmp(tokens[0], "ipv4") == 0) {
+ n_rts = &nb_rt_ip4;
+ route_ipv4 = &rt_ip4[*n_rts];
+
+ APP_CHECK(*n_rts <= RT_IPV4_MAX_RULES - 1, status,
+ "too many rt rules, abort insertion\n");
+ if (status->status < 0)
+ return;
+
+ } else if (strcmp(tokens[0], "ipv6") == 0) {
+ n_rts = &nb_rt_ip6;
+ route_ipv6 = &rt_ip6[*n_rts];
+
+ APP_CHECK(*n_rts <= RT_IPV6_MAX_RULES - 1, status,
+ "too many rt rules, abort insertion\n");
+ if (status->status < 0)
+ return;
+ } else {
+ APP_CHECK(0, status, "unrecognized input \"%s\"",
+ tokens[0]);
+ return;
+ }
+
+ for (ti = 1; ti < n_tokens; ti++) {
+ if (strcmp(tokens[ti], "dst") == 0) {
+ INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
+ if (status->status < 0)
+ return;
+
+ if (route_ipv4 != NULL) {
+ struct in_addr ip;
+ uint32_t depth = 0;
+
+ APP_CHECK(parse_ipv4_addr(tokens[ti],
+ &ip, &depth) == 0, status,
+ "unrecognized input \"%s\", "
+ "expect valid ipv4 addr",
+ tokens[ti]);
+ if (status->status < 0)
+ return;
+ route_ipv4->ip = rte_bswap32(
+ (uint32_t)ip.s_addr);
+ route_ipv4->depth = (uint8_t)depth;
+ } else {
+ struct in6_addr ip;
+ uint32_t depth;
+
+ APP_CHECK(parse_ipv6_addr(tokens[ti],
+ &ip, &depth) == 0, status,
+ "unrecognized input \"%s\", "
+ "expect valid ipv6 address",
+ tokens[ti]);
+ if (status->status < 0)
+ return;
+ memcpy(route_ipv6->ip, ip.s6_addr, 16);
+ route_ipv6->depth = (uint8_t)depth;
+ }
+ }
+
+ if (strcmp(tokens[ti], "port") == 0) {
+ INCREMENT_TOKEN_INDEX(ti, n_tokens, status);
+ if (status->status < 0)
+ return;
+ APP_CHECK_TOKEN_IS_NUM(tokens, ti, status);
+ if (status->status < 0)
+ return;
+ if (route_ipv4 != NULL)
+ route_ipv4->if_out = atoi(tokens[ti]);
+ else
+ route_ipv6->if_out = atoi(tokens[ti]);
+ }
+ }
+
+ *n_rts = *n_rts + 1;
+}
+
+void
+rt_init(struct socket_ctx *ctx, int32_t socket_id)
+{
+ char name[PATH_MAX];
+ uint32_t i;
+ int32_t ret;
+ struct rte_lpm *lpm;
+ struct rte_lpm6 *lpm6;
+ char a, b, c, d;
+ 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);
+
+ if (nb_rt_ip4 == 0 && nb_rt_ip6 == 0)
+ RTE_LOG(WARNING, IPSEC, "No Routing rule specified\n");
+
+ printf("Creating IPv4 Routing Table (RT) context with %u max routes\n",
+ RT_IPV4_MAX_RULES);
+
+ /* 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_rt_ip4; i++) {
+ ret = rte_lpm_add(lpm, rt_ip4[i].ip, rt_ip4[i].depth,
+ rt_ip4[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_ip4[i].ip, &a, &b, &c, &d);
+ printf("LPM: Adding route %hhu.%hhu.%hhu.%hhu/%hhu (%hhu)\n",
+ a, b, c, d, rt_ip4[i].depth,
+ rt_ip4[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_rt_ip6; i++) {
+ ret = rte_lpm6_add(lpm6, rt_ip6[i].ip, rt_ip6[i].depth,
+ rt_ip6[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)((rt_ip6[i].ip[0] << 8) | rt_ip6[i].ip[1]),
+ (uint16_t)((rt_ip6[i].ip[2] << 8) | rt_ip6[i].ip[3]),
+ (uint16_t)((rt_ip6[i].ip[4] << 8) | rt_ip6[i].ip[5]),
+ (uint16_t)((rt_ip6[i].ip[6] << 8) | rt_ip6[i].ip[7]),
+ (uint16_t)((rt_ip6[i].ip[8] << 8) | rt_ip6[i].ip[9]),
+ (uint16_t)((rt_ip6[i].ip[10] << 8) | rt_ip6[i].ip[11]),
+ (uint16_t)((rt_ip6[i].ip[12] << 8) | rt_ip6[i].ip[13]),
+ (uint16_t)((rt_ip6[i].ip[14] << 8) | rt_ip6[i].ip[15]),
+ rt_ip6[i].depth, rt_ip6[i].if_out);
+ }
+
+ ctx->rt_ip4 = (struct rt_ctx *)lpm;
+ ctx->rt_ip6 = (struct rt_ctx *)lpm6;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-09 16:31:19 +0000