diff options
| author |   Ole Troan <ot@cisco.com> | 2021-08-11 13:54:14 +0200 |
|---|---|---|
| committer |   Neale Ranns <neale@graphiant.com> | 2021-08-13 18:07:23 +0000 |
| commit | 8034a36a9cedc95f6762bf0a07f6617d0bf69bfe (patch) | |
| tree | d22313b64c46a26c5c46fcf8c2cb799b02e92197 /src/vnet/ip/ip_sas.h | |
| parent | d170681b24724c522adaf1e2f4f0e1f3289dbf82 (diff) | |
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 <ot@cisco.com>
Change-Id: I1a3382c1f7d4ace0386c2c19e4e47b045b73a3ed
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip_sas.h')
| -rw-r--r-- | src/vnet/ip/ip_sas.h | 32 |
1 files changed, 32 insertions, 0 deletions
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 <stdbool.h> +#include <vnet/ip/ip6_packet.h> +#include <vnet/ip/ip4_packet.h> + +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 |