build: increase readability via shortcut variables

[dpdk.git] / examples / ipsec-secgw / sp6.c

diff --git a/examples/ipsec-secgw/sp6.c b/examples/ipsec-secgw/sp6.c
index 62fb492..e67d85a 100644 (file)
--- a/examples/ipsec-secgw/sp6.c
+++ b/examples/ipsec-secgw/sp6.c
@@ -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
  */
 
 /*
@@ -63,7 +34,7 @@ enum {
 
 #define IP6_ADDR_SIZE 16
 
-struct rte_acl_field_def ip6_defs[IP6_NUM] = {
+static struct rte_acl_field_def ip6_defs[IP6_NUM] = {
        {
        .type = RTE_ACL_FIELD_TYPE_BITMASK,
        .size = sizeof(uint8_t),
@@ -145,11 +116,11 @@ struct rte_acl_field_def ip6_defs[IP6_NUM] = {
 
 RTE_ACL_RULE_DEF(acl6_rules, RTE_DIM(ip6_defs));
 
-struct acl6_rules acl6_rules_out[MAX_ACL_RULE_NUM];
-uint32_t nb_acl6_rules_out;
+static struct acl6_rules acl6_rules_out[MAX_ACL_RULE_NUM];
+static uint32_t nb_acl6_rules_out;
 
-struct acl6_rules acl6_rules_in[MAX_ACL_RULE_NUM];
-uint32_t nb_acl6_rules_in;
+static struct acl6_rules acl6_rules_in[MAX_ACL_RULE_NUM];
+static uint32_t nb_acl6_rules_in;
 
 void
 parse_sp6_tokens(char **tokens, uint32_t n_tokens,
@@ -647,3 +618,28 @@ sp6_init(struct socket_ctx *ctx, int32_t socket_id)
                RTE_LOG(WARNING, IPSEC, "No IPv6 SP Outbound rule "
                        "specified\n");
 }
+
+/*
+ * Search though SP rules for given SPI.
+ */
+int
+sp6_spi_present(uint32_t spi, int inbound)
+{
+       uint32_t i, num;
+       const struct acl6_rules *acr;
+
+       if (inbound != 0) {
+               acr = acl6_rules_in;
+               num = nb_acl6_rules_in;
+       } else {
+               acr = acl6_rules_out;
+               num = nb_acl6_rules_out;
+       }
+
+       for (i = 0; i != num; i++) {
+               if (acr[i].data.userdata == PROTECT(spi))
+                       return i;
+       }
+
+       return -ENOENT;
+}