From 8034a36a9cedc95f6762bf0a07f6617d0bf69bfe Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Wed, 11 Aug 2021 13:54:14 +0200 Subject: ip: source address selection Implement a simple source address selection algorithm for IPv4 and IPv6. IPv6 does not yet implement RFC6724 but supports link-locals. ping now chooses correct source address for link-local destination. Added ping support for link-local multicast (e.g. allnodes). Type: feature Signed-off-by: Ole Troan Change-Id: I1a3382c1f7d4ace0386c2c19e4e47b045b73a3ed Signed-off-by: Ole Troan --- src/vnet/ip/ip_sas.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/vnet/ip/ip_sas.h (limited to 'src/vnet/ip/ip_sas.h') diff --git a/src/vnet/ip/ip_sas.h b/src/vnet/ip/ip_sas.h new file mode 100644 index 00000000000..b1e9e732ed9 --- /dev/null +++ b/src/vnet/ip/ip_sas.h @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2021 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef included_ip_sas_h +#define included_ip_sas_h + +#include +#include +#include + +bool ip6_sas_by_sw_if_index (u32 sw_if_index, const ip6_address_t *dst, + ip6_address_t *src); +bool ip4_sas_by_sw_if_index (u32 sw_if_index, const ip4_address_t *dst, + ip4_address_t *src); +bool ip6_sas (u32 table_id, u32 sw_if_index, const ip6_address_t *dst, + ip6_address_t *src); +bool ip4_sas (u32 table_id, u32 sw_if_index, const ip4_address_t *dst, + ip4_address_t *src); + +#endif -- cgit 1.2.3-korg