]> git.proxmox.com Git - ceph.git/blobdiff - ceph/src/seastar/dpdk/examples/ipsec-secgw/sp4.c
import 15.2.0 Octopus source
[ceph.git] / ceph / src / seastar / dpdk / examples / ipsec-secgw / sp4.c
index 38c72a9271eb9ff42beac427a65197870dea8e36..ca9ee7f24430915e239a3bc6cea6899fc3057026 100644 (file)
@@ -1,34 +1,5 @@
-/*-
- *   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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 Intel Corporation
  */
 
 /*
@@ -73,7 +44,7 @@ enum {
        RTE_ACL_IPV4_NUM
 };
 
-struct rte_acl_field_def ip4_defs[NUM_FIELDS_IPV4] = {
+static struct rte_acl_field_def ip4_defs[NUM_FIELDS_IPV4] = {
        {
        .type = RTE_ACL_FIELD_TYPE_BITMASK,
        .size = sizeof(uint8_t),
@@ -114,11 +85,11 @@ struct rte_acl_field_def ip4_defs[NUM_FIELDS_IPV4] = {
 
 RTE_ACL_RULE_DEF(acl4_rules, RTE_DIM(ip4_defs));
 
-struct acl4_rules acl4_rules_out[MAX_ACL_RULE_NUM];
-uint32_t nb_acl4_rules_out;
+static struct acl4_rules acl4_rules_out[MAX_ACL_RULE_NUM];
+static uint32_t nb_acl4_rules_out;
 
-struct acl4_rules acl4_rules_in[MAX_ACL_RULE_NUM];
-uint32_t nb_acl4_rules_in;
+static struct acl4_rules acl4_rules_in[MAX_ACL_RULE_NUM];
+static uint32_t nb_acl4_rules_in;
 
 void
 parse_sp4_tokens(char **tokens, uint32_t n_tokens,
@@ -128,6 +99,7 @@ parse_sp4_tokens(char **tokens, uint32_t n_tokens,
 
        uint32_t *ri = NULL; /* rule index */
        uint32_t ti = 0; /* token index */
+       uint32_t tv;
 
        uint32_t esp_p = 0;
        uint32_t protect_p = 0;
@@ -198,8 +170,12 @@ parse_sp4_tokens(char **tokens, uint32_t n_tokens,
                        if (status->status < 0)
                                return;
 
-                       rule_ipv4->data.userdata =
-                               PROTECT(atoi(tokens[ti]));
+                       tv = atoi(tokens[ti]);
+                       APP_CHECK(tv != DISCARD && tv != BYPASS, status,
+                               "invalid SPI: %s", tokens[ti]);
+                       if (status->status < 0)
+                               return;
+                       rule_ipv4->data.userdata = tv;
 
                        protect_p = 1;
                        continue;
@@ -501,6 +477,36 @@ acl4_init(const char *name, int32_t socketid, const struct acl4_rules *rules,
        return ctx;
 }
 
+/*
+ * check that for each rule it's SPI has a correspondent entry in SAD
+ */
+static int
+check_spi_value(int inbound)
+{
+       uint32_t i, num, spi;
+       const struct acl4_rules *acr;
+
+       if (inbound != 0) {
+               acr = acl4_rules_in;
+               num = nb_acl4_rules_in;
+       } else {
+               acr = acl4_rules_out;
+               num = nb_acl4_rules_out;
+       }
+
+       for (i = 0; i != num; i++) {
+               spi = acr[i].data.userdata;
+               if (spi != DISCARD && spi != BYPASS &&
+                               sa_spi_present(spi, inbound) < 0) {
+                       RTE_LOG(ERR, IPSEC, "SPI %u is not present in SAD\n",
+                               spi);
+                       return -ENOENT;
+               }
+       }
+
+       return 0;
+}
+
 void
 sp4_init(struct socket_ctx *ctx, int32_t socket_id)
 {
@@ -517,6 +523,14 @@ sp4_init(struct socket_ctx *ctx, int32_t socket_id)
                rte_exit(EXIT_FAILURE, "Outbound SP DB for socket %u already "
                                "initialized\n", socket_id);
 
+       if (check_spi_value(1) < 0)
+               rte_exit(EXIT_FAILURE,
+                       "Inbound IPv4 SP DB has unmatched in SAD SPIs\n");
+
+       if (check_spi_value(0) < 0)
+               rte_exit(EXIT_FAILURE,
+                       "Outbound IPv4 SP DB has unmatched in SAD SPIs\n");
+
        if (nb_acl4_rules_in > 0) {
                name = "sp_ip4_in";
                ctx->sp_ip4_in = (struct sp_ctx *)acl4_init(name,
@@ -533,3 +547,28 @@ sp4_init(struct socket_ctx *ctx, int32_t socket_id)
                RTE_LOG(WARNING, IPSEC, "No IPv4 SP Outbound rule "
                        "specified\n");
 }
+
+/*
+ * Search though SP rules for given SPI.
+ */
+int
+sp4_spi_present(uint32_t spi, int inbound)
+{
+       uint32_t i, num;
+       const struct acl4_rules *acr;
+
+       if (inbound != 0) {
+               acr = acl4_rules_in;
+               num = nb_acl4_rules_in;
+       } else {
+               acr = acl4_rules_out;
+               num = nb_acl4_rules_out;
+       }
+
+       for (i = 0; i != num; i++) {
+               if (acr[i].data.userdata == spi)
+                       return i;
+       }
+
+       return -ENOENT;
+}