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