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f4c89855 LB |
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 | * | |
896014f4 DL |
14 | * You should have received a copy of the GNU General Public License along |
15 | * with this program; see the file COPYING; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
f4c89855 LB |
17 | */ |
18 | ||
19 | #ifndef _QUAGGA_BGP_ENCAP_TYPES_H | |
20 | #define _QUAGGA_BGP_ENCAP_TYPES_H | |
21 | ||
86f6f09e | 22 | #include "bgpd/bgp_ecommunity.h" |
23 | ||
d62a17ae | 24 | /* from |
25 | * http://www.iana.org/assignments/bgp-parameters/bgp-parameters.xhtml#tunnel-types | |
26 | */ | |
f4c89855 | 27 | typedef enum { |
d62a17ae | 28 | BGP_ENCAP_TYPE_RESERVED = 0, |
29 | BGP_ENCAP_TYPE_L2TPV3_OVER_IP = 1, | |
30 | BGP_ENCAP_TYPE_GRE = 2, | |
31 | BGP_ENCAP_TYPE_TRANSMIT_TUNNEL_ENDPOINT = 3, | |
32 | BGP_ENCAP_TYPE_IPSEC_IN_TUNNEL_MODE = 4, | |
33 | BGP_ENCAP_TYPE_IP_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE = 5, | |
34 | BGP_ENCAP_TYPE_MPLS_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE = 6, | |
35 | BGP_ENCAP_TYPE_IP_IN_IP = 7, | |
36 | BGP_ENCAP_TYPE_VXLAN = 8, | |
37 | BGP_ENCAP_TYPE_NVGRE = 9, | |
38 | BGP_ENCAP_TYPE_MPLS = 10, /* NOTE: Encap SAFI&Attribute not used */ | |
39 | BGP_ENCAP_TYPE_MPLS_IN_GRE = 11, | |
40 | BGP_ENCAP_TYPE_VXLAN_GPE = 12, | |
41 | BGP_ENCAP_TYPE_MPLS_IN_UDP = 13, | |
42 | BGP_ENCAP_TYPE_PBB | |
f4c89855 LB |
43 | } bgp_encap_types; |
44 | ||
45 | typedef enum { | |
d62a17ae | 46 | BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION = 1, |
47 | BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE = 2, | |
48 | BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA = 3, | |
49 | BGP_ENCAP_SUBTLV_TYPE_COLOR = 4, | |
50 | BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT = | |
51 | 6 /* speculative, IANA assignment TBD */ | |
f4c89855 LB |
52 | } bgp_encap_subtlv_types; |
53 | ||
54 | /* | |
55 | * Tunnel Encapsulation Attribute subtlvs | |
56 | */ | |
57 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip { | |
d62a17ae | 58 | uint32_t sessionid; |
59 | uint8_t cookie_length; | |
60 | uint8_t cookie[8]; | |
f4c89855 LB |
61 | }; |
62 | ||
63 | struct bgp_tea_subtlv_encap_gre_key { | |
d62a17ae | 64 | uint32_t gre_key; |
f4c89855 LB |
65 | }; |
66 | ||
67 | struct bgp_tea_subtlv_encap_pbb { | |
d62a17ae | 68 | uint32_t flag_isid : 1; |
69 | uint32_t flag_vid : 1; | |
70 | uint32_t isid : 24; | |
71 | uint16_t vid : 12; | |
72 | uint8_t macaddr[6]; | |
f4c89855 LB |
73 | }; |
74 | ||
75 | struct bgp_tea_subtlv_proto_type { | |
d62a17ae | 76 | uint16_t proto; /* ether-type */ |
f4c89855 LB |
77 | }; |
78 | ||
79 | struct bgp_tea_subtlv_color { | |
d62a17ae | 80 | uint32_t color; |
f4c89855 LB |
81 | }; |
82 | ||
587ff0fd LB |
83 | /* per draft-rosen-idr-tunnel-encaps */ |
84 | struct bgp_tea_subtlv_remote_endpoint { | |
d7c0a89a | 85 | uint8_t family; /* IPv4 or IPv6 */ |
d62a17ae | 86 | union { |
87 | struct in_addr v4; | |
88 | struct in6_addr v6; | |
89 | } ip_address; | |
90 | as_t as4; /* always 4 bytes */ | |
587ff0fd LB |
91 | }; |
92 | ||
f4c89855 LB |
93 | /* |
94 | * This is the length of the value part of the ipsec tunnel authenticator | |
95 | * subtlv. Currently we only support the length for authenticator type 1. | |
96 | */ | |
97 | #define BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE 20 | |
98 | ||
99 | struct bgp_tea_subtlv_ipsec_ta { | |
d62a17ae | 100 | uint16_t authenticator_type; /* only type 1 is supported so far */ |
101 | uint8_t authenticator_length; /* octets in value field */ | |
102 | uint8_t value[BGP_ENCAP_SUBTLV_IPSEC_TA_SIZE]; | |
f4c89855 LB |
103 | }; |
104 | ||
105 | /* | |
106 | * Subtlv valid flags | |
107 | * TBD change names to add "VALID" | |
108 | */ | |
109 | #define BGP_TEA_SUBTLV_ENCAP 0x00000001 | |
110 | #define BGP_TEA_SUBTLV_PROTO_TYPE 0x00000002 | |
111 | #define BGP_TEA_SUBTLV_COLOR 0x00000004 | |
112 | #define BGP_TEA_SUBTLV_IPSEC_TA 0x00000008 | |
587ff0fd | 113 | #define BGP_TEA_SUBTLV_REMOTE_ENDPOINT 0x00000010 |
f4c89855 | 114 | |
587ff0fd LB |
115 | #define CHECK_SUBTLV_FLAG(ptr, flag) CHECK_FLAG((ptr)->valid_subtlvs, (flag)) |
116 | #define SET_SUBTLV_FLAG(ptr, flag) SET_FLAG((ptr)->valid_subtlvs, (flag)) | |
117 | #define UNSET_SUBTLV_FLAG(ptr, flag) UNSET_FLAG((ptr)->valid_subtlvs, (flag)) | |
f4c89855 LB |
118 | |
119 | /* | |
120 | * Tunnel Type-specific APIs | |
121 | */ | |
122 | struct bgp_encap_type_reserved { | |
d62a17ae | 123 | uint32_t valid_subtlvs; |
124 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
125 | }; |
126 | ||
127 | struct bgp_encap_type_l2tpv3_over_ip { | |
d62a17ae | 128 | uint32_t valid_subtlvs; |
129 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip st_encap; | |
130 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
131 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
132 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
133 | }; |
134 | ||
135 | struct bgp_encap_type_gre { | |
d62a17ae | 136 | uint32_t valid_subtlvs; |
137 | struct bgp_tea_subtlv_encap_gre_key st_encap; /* optional */ | |
138 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
139 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
140 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
141 | }; |
142 | ||
143 | struct bgp_encap_type_ip_in_ip { | |
d62a17ae | 144 | uint32_t valid_subtlvs; |
145 | struct bgp_tea_subtlv_proto_type st_proto; /* optional */ | |
146 | struct bgp_tea_subtlv_color st_color; /* optional */ | |
147 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
148 | }; |
149 | ||
150 | struct bgp_encap_type_transmit_tunnel_endpoint { | |
d62a17ae | 151 | uint32_t valid_subtlvs; |
152 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
153 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
154 | }; |
155 | ||
156 | struct bgp_encap_type_ipsec_in_tunnel_mode { | |
d62a17ae | 157 | uint32_t valid_subtlvs; |
158 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
159 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
160 | }; |
161 | ||
162 | struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode { | |
d62a17ae | 163 | uint32_t valid_subtlvs; |
164 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
165 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
166 | }; |
167 | ||
168 | struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode { | |
d62a17ae | 169 | uint32_t valid_subtlvs; |
170 | struct bgp_tea_subtlv_ipsec_ta st_ipsec_ta; /* optional */ | |
171 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
f4c89855 LB |
172 | }; |
173 | ||
aee875b5 PG |
174 | #define VXLAN_ENCAP_MASK_VNID_VALID 0x80000000 |
175 | #define VXLAN_ENCAP_MASK_MAC_VALID 0x40000000 | |
176 | ||
f4c89855 | 177 | struct bgp_encap_type_vxlan { |
d62a17ae | 178 | uint32_t valid_subtlvs; |
179 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
180 | /* draft-ietf-idr-tunnel-encaps-02 */ | |
181 | uint32_t vnid; /* does not include V and M bit */ | |
182 | uint8_t *mac_address; /* optional */ | |
f4c89855 LB |
183 | }; |
184 | ||
185 | struct bgp_encap_type_nvgre { | |
d62a17ae | 186 | uint32_t valid_subtlvs; |
187 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
188 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
189 | }; |
190 | ||
191 | struct bgp_encap_type_mpls { | |
d62a17ae | 192 | uint32_t valid_subtlvs; |
193 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
194 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
195 | }; |
196 | ||
197 | struct bgp_encap_type_mpls_in_gre { | |
d62a17ae | 198 | uint32_t valid_subtlvs; |
199 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
200 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
201 | }; |
202 | ||
203 | struct bgp_encap_type_vxlan_gpe { | |
d62a17ae | 204 | uint32_t valid_subtlvs; |
205 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
206 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
207 | }; |
208 | ||
209 | struct bgp_encap_type_mpls_in_udp { | |
d62a17ae | 210 | uint32_t valid_subtlvs; |
211 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
212 | /* No subtlvs defined in spec? */ | |
f4c89855 LB |
213 | }; |
214 | ||
215 | struct bgp_encap_type_pbb { | |
d62a17ae | 216 | uint32_t valid_subtlvs; |
217 | struct bgp_tea_subtlv_remote_endpoint st_endpoint; /* optional */ | |
218 | struct bgp_tea_subtlv_encap_pbb st_encap; | |
f4c89855 LB |
219 | }; |
220 | ||
d62a17ae | 221 | static inline void encode_encap_extcomm(bgp_encap_types tnl_type, |
222 | struct ecommunity_val *eval) | |
86f6f09e | 223 | { |
d62a17ae | 224 | memset(eval, 0, sizeof(*eval)); |
225 | eval->val[0] = ECOMMUNITY_ENCODE_OPAQUE; | |
226 | eval->val[1] = ECOMMUNITY_OPAQUE_SUBTYPE_ENCAP; | |
227 | eval->val[6] = ((tnl_type) >> 8) & 0xff; | |
228 | eval->val[7] = (tnl_type)&0xff; | |
86f6f09e | 229 | } |
230 | ||
f4c89855 | 231 | #endif /* _QUAGGA_BGP_ENCAP_TYPES_H */ |