[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 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

#include <json/json.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_OLD    66 /* Dynamic Capability, deprecated since 2003 */
#define CAPABILITY_CODE_DYNAMIC        67 /* Dynamic Capability */
#define CAPABILITY_CODE_ADDPATH        69 /* Addpath Capability */
#define CAPABILITY_CODE_REFRESH_OLD   128 /* Route Refresh Capability(cisco) */
#define CAPABILITY_CODE_ORF_OLD       130 /* Cooperative Route Filtering Capability(cisco) */
#define CAPABILITY_CODE_HOSTNAME      131 /* Advertise hostname capabilty */

/* 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_MIN_HOSTNAME_LEN 2

/* 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 */
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
	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
	21	#ifndef _QUAGGA_BGP_OPEN_H
	22	#define _QUAGGA_BGP_OPEN_H
	23
	24	#include <json/json.h>
	25
	26	/* Standard header for capability TLV */
	27	struct capability_header
	28	{
	29	u_char code;
	30	u_char length;
	31	};
	32
	33	/* Generic MP capability data */
	34	struct capability_mp_data
	35	{
	36	afi_t afi;
	37	u_char reserved;
	38	safi_t safi;
	39	};
	40
	41	#pragma pack(1)
	42	struct capability_orf_entry
	43	{
	44	struct capability_mp_data mpc;
	45	u_char num;
	46	struct {
	47	u_char type;
	48	u_char mode;
	49	} orfs[];
	50	} __attribute__ ((packed));
	51	#pragma pack()
	52
	53	struct capability_as4
	54	{
	55	uint32_t as4;
	56	};
	57
	58	struct graceful_restart_af
	59	{
	60	afi_t afi;
	61	safi_t safi;
	62	u_char flag;
	63	};
	64
	65	struct capability_gr
	66	{
	67	u_int16_t restart_flag_time;
	68	struct graceful_restart_af gr[];
	69	};
	70
	71	/* Capability Code */
	72	#define CAPABILITY_CODE_MP 1 /* Multiprotocol Extensions */
	73	#define CAPABILITY_CODE_REFRESH 2 /* Route Refresh Capability */
	74	#define CAPABILITY_CODE_ORF 3 /* Cooperative Route Filtering Capability */
	75	#define CAPABILITY_CODE_RESTART 64 /* Graceful Restart Capability */
	76	#define CAPABILITY_CODE_AS4 65 /* 4-octet AS number Capability */
	77	#define CAPABILITY_CODE_DYNAMIC_OLD 66 /* Dynamic Capability, deprecated since 2003 */
	78	#define CAPABILITY_CODE_DYNAMIC 67 /* Dynamic Capability */
	79	#define CAPABILITY_CODE_ADDPATH 69 /* Addpath Capability */
	80	#define CAPABILITY_CODE_REFRESH_OLD 128 /* Route Refresh Capability(cisco) */
	81	#define CAPABILITY_CODE_ORF_OLD 130 /* Cooperative Route Filtering Capability(cisco) */
	82	#define CAPABILITY_CODE_HOSTNAME 131 /* Advertise hostname capabilty */
	83
	84	/* Capability Length */
	85	#define CAPABILITY_CODE_MP_LEN 4
	86	#define CAPABILITY_CODE_REFRESH_LEN 0
	87	#define CAPABILITY_CODE_DYNAMIC_LEN 0
	88	#define CAPABILITY_CODE_RESTART_LEN 2 /* Receiving only case */
	89	#define CAPABILITY_CODE_AS4_LEN 4
	90	#define CAPABILITY_CODE_ADDPATH_LEN 4
	91	#define CAPABILITY_CODE_MIN_HOSTNAME_LEN 2
	92
	93	/* Cooperative Route Filtering Capability. */
	94
	95	/* ORF Type */
	96	#define ORF_TYPE_PREFIX 64
	97	#define ORF_TYPE_PREFIX_OLD 128
	98
	99	/* ORF Mode */
	100	#define ORF_MODE_RECEIVE 1
	101	#define ORF_MODE_SEND 2
	102	#define ORF_MODE_BOTH 3
	103
	104	/* Capability Message Action. */
	105	#define CAPABILITY_ACTION_SET 0
	106	#define CAPABILITY_ACTION_UNSET 1
	107
	108	/* Graceful Restart */
	109	#define RESTART_R_BIT 0x8000
	110	#define RESTART_F_BIT 0x80
	111
	112	extern int bgp_open_option_parse (struct peer , u_char, int );
	113	extern void bgp_open_capability (struct stream , struct peer );
	114	extern void bgp_capability_vty_out (struct vty , struct peer );
	115	extern as_t peek_for_as4_capability (struct peer *, u_char);
	116	extern int bgp_afi_safi_valid_indices (afi_t, safi_t *);
	117
	118	#endif /* _QUAGGA_BGP_OPEN_H */