/*
* Copyright 2015, LabN Consulting, L.L.C.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef _QUAGGA_BGP_ENCAP_TYPES_H
#define _QUAGGA_BGP_ENCAP_TYPES_H
/* from http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel-types */
typedef enum {
BGP_ENCAP_TYPE_RESERVED=0,
BGP_ENCAP_TYPE_L2TPV3_OVER_IP=1,
BGP_ENCAP_TYPE_GRE=2,
BGP_ENCAP_TYPE_TRANSMIT_TUNNEL_ENDPOINT=3,
BGP_ENCAP_TYPE_IPSEC_IN_TUNNEL_MODE=4,
BGP_ENCAP_TYPE_IP_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE=5,
BGP_ENCAP_TYPE_MPLS_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE=6,
BGP_ENCAP_TYPE_IP_IN_IP=7,
BGP_ENCAP_TYPE_VXLAN=8,
BGP_ENCAP_TYPE_NVGRE=9,
BGP_ENCAP_TYPE_MPLS=10,
BGP_ENCAP_TYPE_MPLS_IN_GRE=11,
BGP_ENCAP_TYPE_VXLAN_GPE=12,
BGP_ENCAP_TYPE_MPLS_IN_UDP=13,
BGP_ENCAP_TYPE_PBB
} bgp_encap_types;
typedef enum {
BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION=1,
BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE=2,
BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA=3,
BGP_ENCAP_SUBTLV_TYPE_COLOR=4,
BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT=6 /* speculative, IANA assignment TBD */
} bgp_encap_subtlv_types;
/*
* Tunnel Encapsulation Attribute subtlvs
*/
struct bgp_tea_subtlv_encap_l2tpv3_over_ip {
uint32_t sessionid;
uint8_t cookie_length;
uint8_t cookie[8];
};
struct bgp_tea_subtlv_encap_gre_key {
uint32_t gre_key;
};
struct bgp_tea_subtlv_encap_pbb {
uint32_t flag_isid:1;
uint32_t flag_vid:1;
uint32_t isid:24;
uint16_t vid:12;
uint8_t macaddr[6];
};
struct bgp_tea_subtlv_proto_type {
uint16_t proto; /* ether-type */
};
struct bgp_tea_subtlv_color {
uint32_t color;
};
/* per draft-rosen-idr-tunnel-encaps */
struct bgp_tea_subtlv_remote_endpoint {
u_char family; /* IPv4 or IPv6 */
union {
struct in_addr v4;
struct in6_addr v6;
} ip_address;
as_t as4; /* always 4 bytes */
};
/*
* This is the length of the value part of the ipsec tunnel authenticator
* subtlv. Currently we only support the length for authenticator type 1.
*/
#define BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE 20
struct bgp_tea_subtlv_ipsec_ta {
uint16_t authenticator_type; /* only type 1 is supported so far */
uint8_t authenticator_length; /* octets in value field */
uint8_t value[BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE];
};
/*
* Subtlv valid flags
* TBD change names to add "VALID"
*/
#define BGP_TEA_SUBTLV_ENCAP 0x00000001
#define BGP_TEA_SUBTLV_PROTO_TYPE 0x00000002
#define BGP_TEA_SUBTLV_COLOR 0x00000004
#define BGP_TEA_SUBTLV_IPSEC_TA 0x00000008
#define BGP_TEA_SUBTLV_REMOTE_ENDPOINT 0x00000010
#define CHECK_SUBTLV_FLAG(ptr, flag) CHECK_FLAG((ptr)->valid_subtlvs, (flag))
#define SET_SUBTLV_FLAG(ptr, flag) SET_FLAG((ptr)->valid_subtlvs, (flag))
#define UNSET_SUBTLV_FLAG(ptr, flag) UNSET_FLAG((ptr)->valid_subtlvs, (flag))
/*
* Tunnel Type-specific APIs
*/
struct bgp_encap_type_reserved {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_l2tpv3_over_ip {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_encap_l2tpv3_over_ip st_encap;
struct bgp_tea_subtlv_proto_type st_proto; /* optional */
struct bgp_tea_subtlv_color st_color; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_gre {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_encap_gre_key st_encap; /* optional */
struct bgp_tea_subtlv_proto_type st_proto; /* optional */
struct bgp_tea_subtlv_color st_color; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_ip_in_ip {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_proto_type st_proto; /* optional */
struct bgp_tea_subtlv_color st_color; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_transmit_tunnel_endpoint {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_ipsec_in_tunnel_mode {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
};
struct bgp_encap_type_vxlan {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_nvgre {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_mpls {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_mpls_in_gre {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_vxlan_gpe {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_mpls_in_udp {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
/* No subtlvs defined in spec? */
};
struct bgp_encap_type_pbb {
uint32_t valid_subtlvs;
struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
struct bgp_tea_subtlv_encap_pbb st_encap;
};
#endif /* _QUAGGA_BGP_ENCAP_TYPES_H */
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