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- /* BGP open message handling
- Copyright (C) 1999 Kunihiro Ishiguro
- This file is part of GNU Zebra.
- GNU Zebra is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
- GNU Zebra is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNU Zebra; see the file COPYING. If not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
- #ifndef _QUAGGA_BGP_OPEN_H
- #define _QUAGGA_BGP_OPEN_H
- /* Standard header for capability TLV */
- struct capability_header
- {
- u_char code;
- u_char length;
- };
- /* Generic MP capability data */
- struct capability_mp_data
- {
- afi_t afi;
- u_char reserved;
- safi_t safi;
- };
- #pragma pack(1)
- struct capability_orf_entry
- {
- struct capability_mp_data mpc;
- u_char num;
- struct {
- u_char type;
- u_char mode;
- } orfs[];
- } __attribute__ ((packed));
- #pragma pack()
- struct capability_as4
- {
- uint32_t as4;
- };
- struct graceful_restart_af
- {
- afi_t afi;
- safi_t safi;
- u_char flag;
- };
- struct capability_gr
- {
- u_int16_t restart_flag_time;
- struct graceful_restart_af gr[];
- };
- /* Capability Code */
- #define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */
- #define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */
- #define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */
- #define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */
- #define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */
- #define CAPABILITY_CODE_DYNAMIC 66 /* Dynamic Capability */
- #define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */
- #define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */
- /* Capability Length */
- #define CAPABILITY_CODE_MP_LEN 4
- #define CAPABILITY_CODE_REFRESH_LEN 0
- #define CAPABILITY_CODE_DYNAMIC_LEN 0
- #define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */
- #define CAPABILITY_CODE_AS4_LEN 4
- #define CAPABILITY_CODE_ORF_LEN 5
- /* Cooperative Route Filtering Capability. */
- /* ORF Type */
- #define ORF_TYPE_PREFIX 64
- #define ORF_TYPE_PREFIX_OLD 128
- /* ORF Mode */
- #define ORF_MODE_RECEIVE 1
- #define ORF_MODE_SEND 2
- #define ORF_MODE_BOTH 3
- /* Capability Message Action. */
- #define CAPABILITY_ACTION_SET 0
- #define CAPABILITY_ACTION_UNSET 1
- /* Graceful Restart */
- #define RESTART_R_BIT 0x8000
- #define RESTART_F_BIT 0x80
- extern int bgp_open_option_parse (struct peer *, u_char, int *);
- extern void bgp_open_capability (struct stream *, struct peer *);
- extern void bgp_capability_vty_out (struct vty *, struct peer *);
- extern as_t peek_for_as4_capability (struct peer *, u_char);
- extern int bgp_afi_safi_valid_indices (afi_t, safi_t *);
- #endif /* _QUAGGA_BGP_OPEN_H */
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