[mirror_frr.git] / bgpd / bgp_open.h

/* 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 this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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
{
  iana_afi_t afi;
  u_char reserved;
  safi_t safi;
};

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_OLD    66 /* Dynamic Capability, deprecated since 2003 */
#define CAPABILITY_CODE_DYNAMIC        67 /* Dynamic Capability */
#define CAPABILITY_CODE_ADDPATH        69 /* Addpath Capability */
#define CAPABILITY_CODE_FQDN           73 /* Advertise hostname capabilty */
#define CAPABILITY_CODE_ENHE            5 /* Extended Next Hop Encoding */
#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_ADDPATH_LEN     4
#define CAPABILITY_CODE_ENHE_LEN        6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */
#define CAPABILITY_CODE_MIN_FQDN_LEN    2
#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 *, u_char, json_object *);
extern as_t peek_for_as4_capability (struct peer *, u_char);

#endif /* _QUAGGA_BGP_OPEN_H */
Commit	Line	Data
	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 along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifndef _QUAGGA_BGP_OPEN_H
	22	#define _QUAGGA_BGP_OPEN_H
	23
	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
	33	{
	34	iana_afi_t afi;
	35	u_char reserved;
	36	safi_t safi;
	37	};
	38
	39	struct capability_as4
	40	{
	41	uint32_t as4;
	42	};
	43
	44	struct graceful_restart_af
	45	{
	46	afi_t afi;
	47	safi_t safi;
	48	u_char flag;
	49	};
	50
	51	struct capability_gr
	52	{
	53	u_int16_t restart_flag_time;
	54	struct graceful_restart_af gr[];
	55	};
	56
	57	/* Capability Code */
	58	#define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */
	59	#define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */
	60	#define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */
	61	#define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */
	62	#define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */
	63	#define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */
	64	#define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */
	65	#define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */
	66	#define CAPABILITY_CODE_FQDN 73 /* Advertise hostname capabilty */
	67	#define CAPABILITY_CODE_ENHE 5 /* Extended Next Hop Encoding */
	68	#define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */
	69	#define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */
	70
	71
	72	/* Capability Length */
	73	#define CAPABILITY_CODE_MP_LEN 4
	74	#define CAPABILITY_CODE_REFRESH_LEN 0
	75	#define CAPABILITY_CODE_DYNAMIC_LEN 0
	76	#define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */
	77	#define CAPABILITY_CODE_AS4_LEN 4
	78	#define CAPABILITY_CODE_ADDPATH_LEN 4
	79	#define CAPABILITY_CODE_ENHE_LEN 6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */
	80	#define CAPABILITY_CODE_MIN_FQDN_LEN 2
	81	#define CAPABILITY_CODE_ORF_LEN 5
	82
	83	/* Cooperative Route Filtering Capability. */
	84
	85	/* ORF Type */
	86	#define ORF_TYPE_PREFIX 64
	87	#define ORF_TYPE_PREFIX_OLD 128
	88
	89	/* ORF Mode */
	90	#define ORF_MODE_RECEIVE 1
	91	#define ORF_MODE_SEND 2
	92	#define ORF_MODE_BOTH 3
	93
	94	/* Capability Message Action. */
	95	#define CAPABILITY_ACTION_SET 0
	96	#define CAPABILITY_ACTION_UNSET 1
	97
	98	/* Graceful Restart */
	99	#define RESTART_R_BIT 0x8000
	100	#define RESTART_F_BIT 0x80
	101
	102	extern int bgp_open_option_parse (struct peer , u_char, int );
	103	extern void bgp_open_capability (struct stream , struct peer );
	104	extern void bgp_capability_vty_out (struct vty , struct peer , u_char, json_object *);
	105	extern as_t peek_for_as4_capability (struct peer *, u_char);
	106
	107	#endif /* _QUAGGA_BGP_OPEN_H */