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896014f4bc
The FSF's address changed, and we had a mixture of comment styles for the GPL file header. (The style with * at the beginning won out with 580 to 141 in existing files.) Note: I've intentionally left intact other "variations" of the copyright header, e.g. whether it says "Zebra", "Quagga", "FRR", or nothing. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
120 lines
3.7 KiB
C
120 lines
3.7 KiB
C
/* BGP open message handling
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* Copyright (C) 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_OPEN_H
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#define _QUAGGA_BGP_OPEN_H
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/* Standard header for capability TLV */
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struct capability_header
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{
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u_char code;
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u_char length;
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};
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/* Generic MP capability data */
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struct capability_mp_data
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{
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iana_afi_t afi;
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u_char reserved;
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safi_t safi;
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};
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#pragma pack(1)
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struct capability_orf_entry
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{
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struct capability_mp_data mpc;
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u_char num;
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struct {
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u_char type;
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u_char mode;
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} orfs[];
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} __attribute__ ((packed));
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#pragma pack()
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struct capability_as4
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{
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uint32_t as4;
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};
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struct graceful_restart_af
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{
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afi_t afi;
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safi_t safi;
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u_char flag;
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};
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struct capability_gr
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{
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u_int16_t restart_flag_time;
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struct graceful_restart_af gr[];
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};
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/* Capability Code */
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#define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */
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#define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */
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#define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */
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#define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */
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#define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */
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#define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */
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#define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */
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#define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */
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#define CAPABILITY_CODE_FQDN 73 /* Advertise hostname capabilty */
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#define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */
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#define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */
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#define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */
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/* Capability Length */
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#define CAPABILITY_CODE_MP_LEN 4
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#define CAPABILITY_CODE_REFRESH_LEN 0
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#define CAPABILITY_CODE_DYNAMIC_LEN 0
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#define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */
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#define CAPABILITY_CODE_AS4_LEN 4
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#define CAPABILITY_CODE_ADDPATH_LEN 4
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#define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */
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#define CAPABILITY_CODE_MIN_FQDN_LEN 2
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#define CAPABILITY_CODE_ORF_LEN 5
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/* Cooperative Route Filtering Capability. */
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/* ORF Type */
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#define ORF_TYPE_PREFIX 64
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#define ORF_TYPE_PREFIX_OLD 128
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/* ORF Mode */
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#define ORF_MODE_RECEIVE 1
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#define ORF_MODE_SEND 2
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#define ORF_MODE_BOTH 3
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/* Capability Message Action. */
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#define CAPABILITY_ACTION_SET 0
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#define CAPABILITY_ACTION_UNSET 1
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/* Graceful Restart */
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#define RESTART_R_BIT 0x8000
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#define RESTART_F_BIT 0x80
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extern int bgp_open_option_parse (struct peer *, u_char, int *);
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extern void bgp_open_capability (struct stream *, struct peer *);
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extern void bgp_capability_vty_out (struct vty *, struct peer *, u_char, json_object *);
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extern as_t peek_for_as4_capability (struct peer *, u_char);
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#endif /* _QUAGGA_BGP_OPEN_H */
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