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718e3744 | 1 | /* BGP open message handling |
2 | Copyright (C) 1999 Kunihiro Ishiguro | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
6 | GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any | |
9 | later version. | |
10 | ||
11 | GNU Zebra is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
00d252cb | 21 | #ifndef _QUAGGA_BGP_OPEN_H |
22 | #define _QUAGGA_BGP_OPEN_H | |
23 | ||
6d58272b PJ |
24 | /* Standard header for capability TLV */ |
25 | struct capability_header | |
26 | { | |
27 | u_char code; | |
28 | u_char length; | |
29 | }; | |
30 | ||
31 | /* Generic MP capability data */ | |
32 | struct capability_mp_data | |
718e3744 | 33 | { |
4c9641ba | 34 | afi_t afi; |
718e3744 | 35 | u_char reserved; |
4c9641ba | 36 | safi_t safi; |
718e3744 | 37 | }; |
38 | ||
6d58272b PJ |
39 | #pragma pack(1) |
40 | struct capability_orf_entry | |
718e3744 | 41 | { |
6d58272b PJ |
42 | struct capability_mp_data mpc; |
43 | u_char num; | |
44 | struct { | |
45 | u_char type; | |
46 | u_char mode; | |
47 | } orfs[]; | |
48 | } __attribute__ ((packed)); | |
49 | #pragma pack() | |
718e3744 | 50 | |
0b2aa3a0 PJ |
51 | struct capability_as4 |
52 | { | |
53 | uint32_t as4; | |
54 | }; | |
55 | ||
538621f2 | 56 | struct graceful_restart_af |
57 | { | |
4c9641ba ML |
58 | afi_t afi; |
59 | safi_t safi; | |
538621f2 | 60 | u_char flag; |
61 | }; | |
62 | ||
6d58272b PJ |
63 | struct capability_gr |
64 | { | |
65 | u_int16_t restart_flag_time; | |
66 | struct graceful_restart_af gr[]; | |
67 | }; | |
68 | ||
538621f2 | 69 | /* Capability Code */ |
70 | #define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */ | |
71 | #define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */ | |
72 | #define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */ | |
73 | #define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */ | |
6d58272b | 74 | #define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */ |
89eeecb8 DS |
75 | #define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */ |
76 | #define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */ | |
a82478b9 | 77 | #define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */ |
04b6bdc0 | 78 | #define CAPABILITY_CODE_FQDN 73 /* Advertise hostname capabilty */ |
8a92a8a0 | 79 | #define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */ |
538621f2 | 80 | #define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */ |
81 | #define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */ | |
718e3744 | 82 | |
04b6bdc0 | 83 | |
538621f2 | 84 | /* Capability Length */ |
85 | #define CAPABILITY_CODE_MP_LEN 4 | |
718e3744 | 86 | #define CAPABILITY_CODE_REFRESH_LEN 0 |
538621f2 | 87 | #define CAPABILITY_CODE_DYNAMIC_LEN 0 |
88 | #define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */ | |
6d58272b | 89 | #define CAPABILITY_CODE_AS4_LEN 4 |
a82478b9 | 90 | #define CAPABILITY_CODE_ADDPATH_LEN 4 |
8a92a8a0 | 91 | #define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */ |
04b6bdc0 | 92 | #define CAPABILITY_CODE_MIN_FQDN_LEN 2 |
718e3744 | 93 | |
94 | /* Cooperative Route Filtering Capability. */ | |
718e3744 | 95 | |
538621f2 | 96 | /* ORF Type */ |
718e3744 | 97 | #define ORF_TYPE_PREFIX 64 |
98 | #define ORF_TYPE_PREFIX_OLD 128 | |
99 | ||
538621f2 | 100 | /* ORF Mode */ |
718e3744 | 101 | #define ORF_MODE_RECEIVE 1 |
102 | #define ORF_MODE_SEND 2 | |
103 | #define ORF_MODE_BOTH 3 | |
104 | ||
718e3744 | 105 | /* Capability Message Action. */ |
106 | #define CAPABILITY_ACTION_SET 0 | |
107 | #define CAPABILITY_ACTION_UNSET 1 | |
108 | ||
538621f2 | 109 | /* Graceful Restart */ |
110 | #define RESTART_R_BIT 0x8000 | |
111 | #define RESTART_F_BIT 0x80 | |
112 | ||
94f2b392 | 113 | extern int bgp_open_option_parse (struct peer *, u_char, int *); |
114 | extern void bgp_open_capability (struct stream *, struct peer *); | |
856ca177 | 115 | extern void bgp_capability_vty_out (struct vty *, struct peer *, u_char, json_object *); |
0b2aa3a0 | 116 | extern as_t peek_for_as4_capability (struct peer *, u_char); |
6d58272b | 117 | extern int bgp_afi_safi_valid_indices (afi_t, safi_t *); |
00d252cb | 118 | |
119 | #endif /* _QUAGGA_BGP_OPEN_H */ |