1: /*
2: * Copyright 2015, LabN Consulting, L.L.C.
3: *
4: * This program is free software; you can redistribute it and/or
5: * modify it under the terms of the GNU General Public License
6: * as published by the Free Software Foundation; either version 2
7: * of the License, or (at your option) any later version.
8: *
9: * This program is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: * GNU General Public License for more details.
13: *
14: * You should have received a copy of the GNU General Public License
15: * along with this program; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17: *
18: */
19:
20: #ifndef _QUAGGA_BGP_ENCAP_TYPES_H
21: #define _QUAGGA_BGP_ENCAP_TYPES_H
22:
23: /* from http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel-types */
24: typedef enum {
25: BGP_ENCAP_TYPE_RESERVED=0,
26: BGP_ENCAP_TYPE_L2TPV3_OVER_IP=1,
27: BGP_ENCAP_TYPE_GRE=2,
28: BGP_ENCAP_TYPE_TRANSMIT_TUNNEL_ENDPOINT=3,
29: BGP_ENCAP_TYPE_IPSEC_IN_TUNNEL_MODE=4,
30: BGP_ENCAP_TYPE_IP_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE=5,
31: BGP_ENCAP_TYPE_MPLS_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE=6,
32: BGP_ENCAP_TYPE_IP_IN_IP=7,
33: BGP_ENCAP_TYPE_VXLAN=8,
34: BGP_ENCAP_TYPE_NVGRE=9,
35: BGP_ENCAP_TYPE_MPLS=10,
36: BGP_ENCAP_TYPE_MPLS_IN_GRE=11,
37: BGP_ENCAP_TYPE_VXLAN_GPE=12,
38: BGP_ENCAP_TYPE_MPLS_IN_UDP=13,
39: BGP_ENCAP_TYPE_PBB
40: } bgp_encap_types;
41:
42: typedef enum {
43: BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION=1,
44: BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE=2,
45: BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA=3,
46: BGP_ENCAP_SUBTLV_TYPE_COLOR=4,
47: BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT=6 /* speculative, IANA assignment TBD */
48: } bgp_encap_subtlv_types;
49:
50: /*
51: * Tunnel Encapsulation Attribute subtlvs
52: */
53: struct bgp_tea_subtlv_encap_l2tpv3_over_ip {
54: uint32_t sessionid;
55: uint8_t cookie_length;
56: uint8_t cookie[8];
57: };
58:
59: struct bgp_tea_subtlv_encap_gre_key {
60: uint32_t gre_key;
61: };
62:
63: struct bgp_tea_subtlv_encap_pbb {
64: uint32_t flag_isid:1;
65: uint32_t flag_vid:1;
66: uint32_t isid:24;
67: uint16_t vid:12;
68: uint8_t macaddr[6];
69: };
70:
71: struct bgp_tea_subtlv_proto_type {
72: uint16_t proto; /* ether-type */
73: };
74:
75: struct bgp_tea_subtlv_color {
76: uint32_t color;
77: };
78:
79: /* per draft-rosen-idr-tunnel-encaps */
80: struct bgp_tea_subtlv_remote_endpoint {
81: u_char family; /* IPv4 or IPv6 */
82: union {
83: struct in_addr v4;
84: struct in6_addr v6;
85: } ip_address;
86: as_t as4; /* always 4 bytes */
87: };
88:
89: /*
90: * This is the length of the value part of the ipsec tunnel authenticator
91: * subtlv. Currently we only support the length for authenticator type 1.
92: */
93: #define BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE 20
94:
95: struct bgp_tea_subtlv_ipsec_ta {
96: uint16_t authenticator_type; /* only type 1 is supported so far */
97: uint8_t authenticator_length; /* octets in value field */
98: uint8_t value[BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE];
99: };
100:
101: /*
102: * Subtlv valid flags
103: * TBD change names to add "VALID"
104: */
105: #define BGP_TEA_SUBTLV_ENCAP 0x00000001
106: #define BGP_TEA_SUBTLV_PROTO_TYPE 0x00000002
107: #define BGP_TEA_SUBTLV_COLOR 0x00000004
108: #define BGP_TEA_SUBTLV_IPSEC_TA 0x00000008
109: #define BGP_TEA_SUBTLV_REMOTE_ENDPOINT 0x00000010
110:
111: #define CHECK_SUBTLV_FLAG(ptr, flag) CHECK_FLAG((ptr)->valid_subtlvs, (flag))
112: #define SET_SUBTLV_FLAG(ptr, flag) SET_FLAG((ptr)->valid_subtlvs, (flag))
113: #define UNSET_SUBTLV_FLAG(ptr, flag) UNSET_FLAG((ptr)->valid_subtlvs, (flag))
114:
115: /*
116: * Tunnel Type-specific APIs
117: */
118: struct bgp_encap_type_reserved {
119: uint32_t valid_subtlvs;
120: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
121: };
122:
123: struct bgp_encap_type_l2tpv3_over_ip {
124: uint32_t valid_subtlvs;
125: struct bgp_tea_subtlv_encap_l2tpv3_over_ip st_encap;
126: struct bgp_tea_subtlv_proto_type st_proto; /* optional */
127: struct bgp_tea_subtlv_color st_color; /* optional */
128: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
129: };
130:
131: struct bgp_encap_type_gre {
132: uint32_t valid_subtlvs;
133: struct bgp_tea_subtlv_encap_gre_key st_encap; /* optional */
134: struct bgp_tea_subtlv_proto_type st_proto; /* optional */
135: struct bgp_tea_subtlv_color st_color; /* optional */
136: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
137: };
138:
139: struct bgp_encap_type_ip_in_ip {
140: uint32_t valid_subtlvs;
141: struct bgp_tea_subtlv_proto_type st_proto; /* optional */
142: struct bgp_tea_subtlv_color st_color; /* optional */
143: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
144: };
145:
146: struct bgp_encap_type_transmit_tunnel_endpoint {
147: uint32_t valid_subtlvs;
148: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
149: /* No subtlvs defined in spec? */
150: };
151:
152: struct bgp_encap_type_ipsec_in_tunnel_mode {
153: uint32_t valid_subtlvs;
154: struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
155: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
156: };
157:
158: struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode {
159: uint32_t valid_subtlvs;
160: struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
161: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
162: };
163:
164: struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode {
165: uint32_t valid_subtlvs;
166: struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */
167: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
168: };
169:
170: struct bgp_encap_type_vxlan {
171: uint32_t valid_subtlvs;
172: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
173: /* No subtlvs defined in spec? */
174: };
175:
176: struct bgp_encap_type_nvgre {
177: uint32_t valid_subtlvs;
178: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
179: /* No subtlvs defined in spec? */
180: };
181:
182: struct bgp_encap_type_mpls {
183: uint32_t valid_subtlvs;
184: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
185: /* No subtlvs defined in spec? */
186: };
187:
188: struct bgp_encap_type_mpls_in_gre {
189: uint32_t valid_subtlvs;
190: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
191: /* No subtlvs defined in spec? */
192: };
193:
194: struct bgp_encap_type_vxlan_gpe {
195: uint32_t valid_subtlvs;
196: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
197: /* No subtlvs defined in spec? */
198: };
199:
200: struct bgp_encap_type_mpls_in_udp {
201: uint32_t valid_subtlvs;
202: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
203: /* No subtlvs defined in spec? */
204: };
205:
206: struct bgp_encap_type_pbb {
207: uint32_t valid_subtlvs;
208: struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */
209: struct bgp_tea_subtlv_encap_pbb st_encap;
210: };
211:
212: #endif /* _QUAGGA_BGP_ENCAP_TYPES_H */
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