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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_types; | |
48 | ||
49 | /* | |
50 | * Tunnel Encapsulation Attribute subtlvs | |
51 | */ | |
52 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip { | |
53 | uint32_t sessionid; | |
54 | uint8_t cookie_length; | |
55 | uint8_t cookie[8]; | |
56 | }; | |
57 | ||
58 | struct bgp_tea_subtlv_encap_gre_key { | |
59 | uint32_t gre_key; | |
60 | }; | |
61 | ||
62 | struct bgp_tea_subtlv_encap_pbb { | |
63 | uint32_t flag_isid:1; | |
64 | uint32_t flag_vid:1; | |
65 | uint32_t isid:24; | |
66 | uint16_t vid:12; | |
67 | uint8_t macaddr[6]; | |
68 | }; | |
69 | ||
70 | struct bgp_tea_subtlv_proto_type { | |
71 | uint16_t proto; /* ether-type */ | |
72 | }; | |
73 | ||
74 | struct bgp_tea_subtlv_color { | |
75 | uint32_t color; | |
76 | }; | |
77 | ||
78 | /* | |
79 | * This is the length of the value part of the ipsec tunnel authenticator | |
80 | * subtlv. Currently we only support the length for authenticator type 1. | |
81 | */ | |
82 | #define BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE 20 | |
83 | ||
84 | struct bgp_tea_subtlv_ipsec_ta { | |
85 | uint16_t authenticator_type; /* only type 1 is supported so far */ | |
86 | uint8_t authenticator_length; /* octets in value field */ | |
87 | uint8_t value[BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE]; | |
88 | }; | |
89 | ||
90 | /* | |
91 | * Subtlv valid flags | |
92 | * TBD change names to add "VALID" | |
93 | */ | |
94 | #define BGP_TEA_SUBTLV_ENCAP 0x00000001 | |
95 | #define BGP_TEA_SUBTLV_PROTO_TYPE 0x00000002 | |
96 | #define BGP_TEA_SUBTLV_COLOR 0x00000004 | |
97 | #define BGP_TEA_SUBTLV_IPSEC_TA 0x00000008 | |
98 | ||
99 | ||
100 | /* | |
101 | * Tunnel Type-specific APIs | |
102 | */ | |
103 | struct bgp_encap_type_reserved { | |
104 | }; | |
105 | ||
106 | struct bgp_encap_type_l2tpv3_over_ip { | |
107 | uint32_t valid_subtlvs; | |
108 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip st_encap; | |
109 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
110 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
111 | }; | |
112 | ||
113 | struct bgp_encap_type_gre { | |
114 | uint32_t valid_subtlvs; | |
115 | struct bgp_tea_subtlv_encap_gre_key st_encap; /* optional */ | |
116 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
117 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
118 | }; | |
119 | ||
120 | struct bgp_encap_type_ip_in_ip { | |
121 | uint32_t valid_subtlvs; | |
122 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
123 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
124 | }; | |
125 | ||
126 | struct bgp_encap_type_transmit_tunnel_endpoint { | |
127 | /* No subtlvs defined in spec? */ | |
128 | }; | |
129 | ||
130 | struct bgp_encap_type_ipsec_in_tunnel_mode { | |
131 | uint32_t valid_subtlvs; | |
132 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
133 | }; | |
134 | ||
135 | struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode { | |
136 | uint32_t valid_subtlvs; | |
137 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
138 | }; | |
139 | ||
140 | struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode { | |
141 | uint32_t valid_subtlvs; | |
142 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
143 | }; | |
144 | ||
145 | struct bgp_encap_type_vxlan { | |
146 | /* No subtlvs defined in spec? */ | |
147 | }; | |
148 | ||
149 | struct bgp_encap_type_nvgre { | |
150 | /* No subtlvs defined in spec? */ | |
151 | }; | |
152 | ||
153 | struct bgp_encap_type_mpls { | |
154 | /* No subtlvs defined in spec? */ | |
155 | }; | |
156 | ||
157 | struct bgp_encap_type_mpls_in_gre { | |
158 | /* No subtlvs defined in spec? */ | |
159 | }; | |
160 | ||
161 | struct bgp_encap_type_vxlan_gpe { | |
162 | /* No subtlvs defined in spec? */ | |
163 | }; | |
164 | ||
165 | struct bgp_encap_type_mpls_in_udp { | |
166 | /* No subtlvs defined in spec? */ | |
167 | }; | |
168 | ||
169 | struct bgp_encap_type_pbb { | |
170 | uint32_t valid_subtlvs; | |
171 | struct bgp_tea_subtlv_encap_pbb st_encap; | |
172 | }; | |
173 | ||
174 | #endif /* _QUAGGA_BGP_ENCAP_TYPES_H */ |