Ole Troan
53fffa1db7
Previously all types are compound. This adds support for aliases, so one can do things like: typedef u32 interface_index; or typedef u8 ip4_address[4]; Change-Id: I0455cad0123fc88acb491d2a3ea2725426bdb246 Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Klement Sekera <ksekera@cisco.com>
150 lines
3.7 KiB
Plaintext
150 lines
3.7 KiB
Plaintext
/*
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* Copyright (c) 2018 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* The IPIP module implements IP{v4,v6} over IP{v4,v6} tunnelling as
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* described in RFC2473 and to some extent the largely historical
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* RFC1853. The module also supports an IPv4 over IPv6 automatic
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* tunnelling mechanism called 6RD (RFC5969).
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*
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* The IPIP API module supports a CRD model for adding, deleting and
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* listing tunnels. A tunnel is represented as an interface in
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* VPP. The "handle" representing a tunnel is the sw_if_index. As any
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* interface, the user must configure an IPv4 and/or IPv6 address on
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* the interface. This is the inner or payload protocol.
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*
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* Tunnel MTU: The tunnel MTU (the payload MTU) is configurable per
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* protocol. If a tunnel MTU is larger than the path MTU, the outer
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* packet will be fragmented. Fragmentation support is configurable,
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* as it can have severe performance issues, and might be used as an
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* attack vector (the remote side must reassemble.)
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*
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* Traffic class / TOS field can either be configured to a fixed
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* value, or can be copied from the inner to the outer header.
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* (For now we have stolen ~0 to indicate copy).
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*
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* Note:
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*
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* - The Tunnel encapsulation limit described in RFC2473 is not
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* implemented.
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*
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* - ICMP proxying, as in a tunnel head-end receiving ICMP erors on
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* the outer packet is currently not relayed to the original source
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* of the packet.
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*
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* - PMTUD / MTU probing and tunnel keepalives are not yet implemented.
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*
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*/
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option version = "1.1.0";
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import "vnet/interface_types.api";
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/**
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* Create an IP{v4,v6} over IP{v4,v6} tunnel.
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*/
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define ipip_add_tunnel
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{
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u32 client_index;
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u32 context;
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u8 is_ipv6;
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u32 instance; /* If non-~0, specifies a custom dev instance */
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u8 src_address[16];
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u8 dst_address[16];
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u32 table_id;
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u8 tc_tos; /* If ~0, the TOS/TC value is copied from
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inner packet, otherwise set to value */
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};
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define ipip_add_tunnel_reply
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{
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u32 context;
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i32 retval;
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vl_api_interface_index_t sw_if_index;
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};
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/**
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* Delete an IP{v4,v6} over IP{v4,v6} tunnel.
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*/
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autoreply define ipip_del_tunnel
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{
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u32 client_index;
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u32 context;
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vl_api_interface_index_t sw_if_index;
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};
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/**
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* Create an IPv4 over IPv6 automatic tunnel (6RD)
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*/
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define ipip_6rd_add_tunnel
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{
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u32 client_index;
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u32 context;
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u32 ip6_table_id;
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u32 ip4_table_id;
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u8 ip6_prefix[16];
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u8 ip4_prefix[4];
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u8 ip4_src[4];
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u8 ip6_prefix_len;
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u8 ip4_prefix_len;
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u8 security_check;
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u8 tc_tos; /* If ~0, the TOS/TC value is copied from
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inner packet, otherwise set to value */
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};
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define ipip_6rd_add_tunnel_reply
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{
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u32 context;
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i32 retval;
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vl_api_interface_index_t sw_if_index;
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};
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/**
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* Delete an IPv4 over IPv6 automatic tunnel (6RD)
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*/
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autoreply define ipip_6rd_del_tunnel
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{
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u32 client_index;
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u32 context;
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vl_api_interface_index_t sw_if_index;
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};
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/**
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* List all IPIP tunnels
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*/
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define ipip_tunnel_dump
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{
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u32 client_index;
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u32 context;
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vl_api_interface_index_t sw_if_index;
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};
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define ipip_tunnel_details
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{
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u32 context;
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vl_api_interface_index_t sw_if_index;
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u32 instance;
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u8 is_ipv6;
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u8 src_address[16];
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u8 dst_address[16];
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u32 fib_index;
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u8 tc_tos;
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};
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/*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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