projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 718e3744 | 2 | /* BGP open message handling |
| 896014f4 | 3 | * Copyright (C) 1999 Kunihiro Ishiguro |
| 896014f4 | 4 | */ |
| 718e3744 | 5 | |
| 00d252cb | 6 | #ifndef _QUAGGA_BGP_OPEN_H |
| 7 | #define _QUAGGA_BGP_OPEN_H | |
| 8 | ||
| 6d58272b | 9 | /* Standard header for capability TLV */ |
| d62a17ae | 10 | struct capability_header { |
| d7c0a89a QY |
11 | uint8_t code; |
| 12 | uint8_t length; | |
| 6d58272b PJ |
13 | }; |
| 14 | ||
| 15 | /* Generic MP capability data */ | |
| d62a17ae | 16 | struct capability_mp_data { |
| a46a2e9b | 17 | uint16_t afi; /* iana_afi_t */ |
| d7c0a89a | 18 | uint8_t reserved; |
| a46a2e9b | 19 | uint8_t safi; /* iana_safi_t */ |
| 718e3744 | 20 | }; |
| 21 | ||
| d62a17ae | 22 | struct graceful_restart_af { |
| 23 | afi_t afi; | |
| 24 | safi_t safi; | |
| d7c0a89a | 25 | uint8_t flag; |
| 538621f2 | 26 | }; |
| 27 | ||
| 28 | /* Capability Code */ | |
| 29 | #define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */ | |
| 30 | #define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */ | |
| 31 | #define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */ | |
| 32 | #define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */ | |
| 6d58272b | 33 | #define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */ |
| 89eeecb8 DS |
34 | #define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */ |
| 35 | #define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */ | |
| a82478b9 | 36 | #define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */ |
| 9af52ccf | 37 | #define CAPABILITY_CODE_ENHANCED_RR 70 /* Enhanced Route Refresh capability */ |
| 8606be87 | 38 | #define CAPABILITY_CODE_LLGR 71 /* Long-lived Graceful Restart */ |
| da88f402 | 39 | #define CAPABILITY_CODE_FQDN 73 /* Advertise hostname capability */ |
| 234f6fd4 | 40 | #define CAPABILITY_CODE_SOFT_VERSION 75 /* Software Version capability */ |
| 8a92a8a0 | 41 | #define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */ |
| 538621f2 | 42 | #define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */ |
| 43 | #define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */ | |
| ef56aee4 | 44 | #define CAPABILITY_CODE_EXT_MESSAGE 6 /* Extended Message Support */ |
| d864dd9e | 45 | #define CAPABILITY_CODE_ROLE 9 /* Role Capability */ |
| 718e3744 | 46 | |
| 538621f2 | 47 | /* Capability Length */ |
| 48 | #define CAPABILITY_CODE_MP_LEN 4 | |
| 718e3744 | 49 | #define CAPABILITY_CODE_REFRESH_LEN 0 |
| 538621f2 | 50 | #define CAPABILITY_CODE_DYNAMIC_LEN 0 |
| 51 | #define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */ | |
| 6d58272b | 52 | #define CAPABILITY_CODE_AS4_LEN 4 |
| a82478b9 | 53 | #define CAPABILITY_CODE_ADDPATH_LEN 4 |
| 8a92a8a0 | 54 | #define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */ |
| e978e1de | 55 | #define CAPABILITY_CODE_MIN_FQDN_LEN 2 |
| 9af52ccf | 56 | #define CAPABILITY_CODE_ENHANCED_LEN 0 |
| 8606be87 | 57 | #define CAPABILITY_CODE_LLGR_LEN 0 |
| e978e1de | 58 | #define CAPABILITY_CODE_ORF_LEN 5 |
| ef56aee4 | 59 | #define CAPABILITY_CODE_EXT_MESSAGE_LEN 0 /* Extended Message Support */ |
| d864dd9e | 60 | #define CAPABILITY_CODE_ROLE_LEN 1 |
| 234f6fd4 | 61 | #define CAPABILITY_CODE_SOFT_VERSION_LEN 1 |
| 718e3744 | 62 | |
| 63 | /* Cooperative Route Filtering Capability. */ | |
| 718e3744 | 64 | |
| 538621f2 | 65 | /* ORF Type */ |
| 5bb2aa89 | 66 | #define ORF_TYPE_RESERVED 0 |
| 9ea364a2 | 67 | #define ORF_TYPE_PREFIX 64 |
| 718e3744 | 68 | #define ORF_TYPE_PREFIX_OLD 128 |
| 69 | ||
| 538621f2 | 70 | /* ORF Mode */ |
| 9ea364a2 DA |
71 | #define ORF_MODE_RECEIVE 1 |
| 72 | #define ORF_MODE_SEND 2 | |
| 73 | #define ORF_MODE_BOTH 3 | |
| 718e3744 | 74 | |
| 718e3744 | 75 | /* Capability Message Action. */ |
| 76 | #define CAPABILITY_ACTION_SET 0 | |
| 77 | #define CAPABILITY_ACTION_UNSET 1 | |
| 78 | ||
| 538621f2 | 79 | /* Graceful Restart */ |
| d83facbb | 80 | #define GRACEFUL_RESTART_R_BIT 0x8000 |
| eea685b6 | 81 | #define GRACEFUL_RESTART_N_BIT 0x4000 |
| d83facbb | 82 | #define GRACEFUL_RESTART_F_BIT 0x80 |
| 538621f2 | 83 | |
| 8606be87 DA |
84 | /* Long-lived Graceful Restart */ |
| 85 | #define LLGR_F_BIT 0x80 | |
| 86 | ||
| d08c0c80 DA |
87 | /* Optional Parameters */ |
| 88 | #define BGP_OPEN_NON_EXT_OPT_LEN 255 /* Non-Ext OP Len. */ | |
| 89 | #define BGP_OPEN_NON_EXT_OPT_TYPE_EXTENDED_LENGTH 255 /* Non-Ext OP Type */ | |
| 90 | #define BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer) \ | |
| 91 | (CHECK_FLAG(peer->flags, PEER_FLAG_EXTENDED_OPT_PARAMS) \ | |
| 92 | || CHECK_FLAG(peer->sflags, PEER_STATUS_EXT_OPT_PARAMS_LENGTH)) | |
| 93 | ||
| 94 | extern int bgp_open_option_parse(struct peer *peer, uint16_t length, | |
| 95 | int *mp_capability); | |
| 96 | extern uint16_t bgp_open_capability(struct stream *s, struct peer *peer, | |
| 97 | bool ext_opt_params); | |
| 94d4c685 DS |
98 | extern void bgp_capability_vty_out(struct vty *vty, struct peer *peer, |
| 99 | bool use_json, json_object *json_neigh); | |
| d08c0c80 | 100 | extern as_t peek_for_as4_capability(struct peer *peer, uint16_t length); |
| 00d252cb | 101 | |
| 102 | #endif /* _QUAGGA_BGP_OPEN_H */ |